Lifting bed, cab and vehicle

Abstract

The invention relates to a lifting bed, a cab and a vehicle. The lifting bed comprises a bed body, a rotating part and a traction part. The bed body can be switched between an upper position and a lower position in the vertical direction, the rotating part comprises a supporting unit and can be switched between a first state and a second state, one end of the traction part is connected with the bed body, and the other end of the traction part is connected with the rotating part. When the bed body is located at the upper position, the rotating part is in a first state, and the supporting unit and the bed body are separately arranged; when the bed body is located at the lower position, the rotating part is located in the second state, and the supporting unit abuts against the bed body and provides supporting force for the bed body. Based on the arrangement, when the bed body is located at the upper position, the living space of a driver can be increased. When the bed body is located at the lower position, a person lies on the bed body, so that the overall weight of the bed body is increased, at the moment, the supporting units of the rotating parts support the bed body, the pulling force needed by the pull-up device is reduced, and the stability of the overall lifting bed is improved.

Description

Technical Field

[0001] This application relates to the field of lifting beds, and particularly to a lifting bed, a cab, and a vehicle. Background Art

[0002] Long-distance transport trucks generally include several main parts such as the cab (front end), engine and power system, transmission system, cargo box / trailer, and electrical system. Among them, the cab (front end) is the place where the driver operates the truck and includes a cockpit and a rest area. Control devices such as a steering wheel, seat, and instrument panel are provided in the cockpit. In some long-distance transport trucks, a small living space with facilities such as a bed, refrigerator, and storage locker is specially set up to facilitate the driver's rest.

[0003] The above components are closely connected through careful design and manufacturing, enabling the driver to drive and live normally. Among them, the cab (front end) is the area most closely related to the driver's life and directly affects the driver's quality of life during driving. However, in a conventional cab, the bed occupies the vast majority of the space, making the driver's living space very narrow. Summary of the Invention

[0004] The purpose of this application is to provide a lifting bed, a cab, and a vehicle.

[0005] According to the first aspect of the embodiments of this application, a lifting bed is provided, and the lifting bed includes:

[0006] A bed body that can be switched between an upper position and a lower position in the vertical direction;

[0007] A rotating part that includes a support unit and can be switched between a first state and a second state;

[0008] Wherein, when the bed body is in the upper position, the rotating part is in the first state, and the support unit is separated from the bed body; when the bed body is in the lower position, the rotating part is in the second state, the support unit abuts against the bed body, and provides a supporting force to the bed body.

[0009] Based on the above settings, when the bed body is in the upper position, the driver's living space can be increased. And because no one is sleeping on it, the overall weight of the bed body and the items above is relatively small, and thus it can be directly lifted under the tension of the pulling device. When the bed body is in the lower position, a person lies on the bed body, increasing the overall weight of the bed body. At this time, the support unit of the rotating part supports the bed body, thereby reducing the pulling force required by the pulling device and improving the stability of the overall lifting bed.

[0010] In some embodiments, the lift bed further includes an energy storage unit, which is connected to the rotating unit;

[0011] When the bed body turns from the upper position to the lower position, the traction unit pulls the rotating unit to rotate from the first state to the second state, and causes the energy storage unit to store energy;

[0012] When the bed body turns from the lower position to the upper position, the energy storage unit releases energy to push the rotating unit back from the second state to the first state.

[0013] It should be noted that the energy storage unit here can be a torsion spring. When the traction unit pulls the rotating unit to rotate from the first state to the second state, the torsion spring is stretched to store energy. When the bed body turns from the lower position to the upper position, the torsion spring automatically releases energy, causing the rotating unit to automatically bounce back to its original position. Of course, in addition to the torsion spring, the above-mentioned energy storage unit can also be a compression spring, rubber or other components that can store and release energy.

[0014] Based on the above settings, since the energy storage unit is added, the energy storage unit can store energy when the bed body turns from the upper position to the lower position, and when the bed body returns to the upper position, the energy storage unit directly bounces the rotating unit back to its original position, thereby making it return. This process uses the originally existing displacement to store energy and releases it later, without adding other operation processes and components, and the design is ingenious. In addition, the design of the energy storage unit can also return the rotating unit to its original position in the first time, so that the user can hardly feel the existence of the rotating unit, thereby improving the use experience.

[0015] In some embodiments, the rotating unit includes a rotating shaft, and the supporting unit is rotatably arranged along the rotating shaft. When the rotating unit is in the second state, the supporting surface of the supporting unit is parallel to the horizontal plane.

[0016] Based on the above settings, after the supporting unit rotates a certain angle, the supporting surface is parallel to the horizontal plane, so that the bed body can be well matched with the supporting surface. At this time, the contact surface between the supporting unit and the bed body is larger, and thus the bed body is more stable and not easily detached from the supporting unit.

[0017] In some embodiments, the lift bed includes a traction unit, one end of the traction unit is connected to the bed body, and the other end of the traction unit is connected to the rotating unit;

[0018] The rotating unit further includes a fixing unit, the fixing unit is arranged on the supporting unit, and the fixing unit is connected to the traction unit;

[0019] When the rotating unit is in the second state, the included angle between the connection line from the fixing unit to the rotating shaft and the traction unit is less than or equal to 175°.

[0020] As the traction part is stretched, the included angle continuously increases. In the second state, the rotational force transmitted to the rotating part via the traction part is its horizontal component force. At this time, if the included angle between the line connecting the fixing unit to the rotating shaft and the traction part is too large (180°), its horizontal component force is approximately equal to 0, so a very large pulling force needs to be applied, which can easily cause the traction part to break. In this application, the included angle between the line connecting the fixing unit to the rotating shaft and the traction part is set to be less than or equal to 175°, which can well avoid the breakage of the traction part and thus enhance the overall reliability of the lifting bed.

[0021] In some embodiments, the included angle is greater than or equal to 150° and less than or equal to 170°.

[0022] Within this range, on the one hand, the traction part can provide sufficient component force to the rotating part, and on the other hand, it can also ensure that the traction part is not pulled off, thereby improving the overall reliability of the lifting bed. For example, the included angle between the line connecting the fixing unit to the rotating shaft and the traction part can be 150°, 155°, 160°, 165°, 170°.

[0023] In some embodiments, the rotating part further includes a fixing unit, the fixing unit is arranged on the supporting unit, the fixing unit includes a through hole, the traction part passes through the through hole, and a matching unit is arranged at the end of the traction part, and the diameter of the matching unit is greater than the diameter of the through hole.

[0024] Based on the above settings, when the bed body switches from the upper position to the lower position in the vertical direction, the matching unit will finally get stuck outside the through hole. At this time, the traction part is tensioned, thereby applying a pulling force to the fixing unit, and then making the rotating part rotate to the second state. In addition, in this embodiment, since the traction part needs to be pulled through the through hole and has a matching unit at its tail, the matching unit provides downward gravity, and the through hole provides a certain degree of limitation. Therefore, under the action of gravity and limitation, the traction part itself is not easy to knot, so it is not easy to malfunction, thereby improving the durability of the lifting bed.

[0025] In some embodiments, the lifting bed further includes a blocking part,

[0026] When the rotating part is in the first state, the blocking part is used to block the rotating part from continuing to rotate in the direction away from the second state;

[0027] When the rotating part is in the second state, the blocking part is used to block the rotating part from continuing to rotate in the direction away from the first state.

[0028] It should be noted that the above-mentioned blocking portion can be set as a groove in the rotating portion and a protrusion on the wall. When the protrusion abuts against the edge of the groove, it will stop. Or the blocking portion is only a physical blocking unit, which is directly arranged at the first state and the second state of the rotating portion to block the further rotation of the rotating portion.

[0029] Based on the above settings, the blocking portion can limit the rotation of the rotating portion within a certain range, so that the rotating portion can be more accurately located in the first state to cooperate with the wall, and can also be more accurately located in the second state to cooperate with the bed body, thereby obtaining better effects.

[0030] In some embodiments, the rotation angle for the rotating portion to switch from the first state to the second state is a first angle, and the first angle is greater than or equal to 10° and less than or equal to 150°.

[0031] Within this range, on the one hand, it can avoid the traction part from being broken, and on the other hand, it can also avoid the bed body from slipping. For example, the first angle can be set to 10°, 20°, 30°, 40°, 50°, 60°, 70°, 80°, 90°, 100°, 110°, 120°, 130°, 140°, 150°.

[0032] According to the second aspect of the embodiments of the present application, a cab is provided. The cab includes side walls and a lift bed as described in any one of claims 1-8, and the side walls include an opening. The rotating portion includes a shielding unit. When the rotating portion is in the first state, the shielding unit shields the opening; when the rotating portion is in the second state, the rotating portion rotates out of the opening, and the supporting unit abuts against the bed body.

[0033] Based on the above settings, when the bed body is in the upper position, it can increase the living space of the driver. At this time, the shielding unit shields the opening, making the effect beautiful and not occupying the space on the wall. And because no one is sleeping on the bed body, the overall weight of the bed body and the items above is relatively small, so it can be directly lifted under the stretching of the pulling device. When the bed body is in the lower position, a person lies on the bed body, thereby increasing the overall weight of the bed body. At this time, the supporting unit of the rotating portion supports the bed body, thereby reducing the pulling force required by the pulling device and improving the stability of the overall lift bed.

[0034] According to the third aspect of the embodiments of the present application, a vehicle is provided. The vehicle includes a lift bed as described in any one of the above embodiments.

[0035] The beneficial technical effects brought by the technical solutions provided by the embodiments of the present application are:

[0036] By setting the bed body, the rotating part and the traction part. The bed body can be switched between an upper position and a lower position in the vertical direction. The rotating part includes a support unit, and the rotating part can be switched between a first state and a second state. One end of the traction part is connected to the bed body, and the other end of the traction part is connected to the rotating part. Wherein, when the bed body is in the upper position, the rotating part is in the first state, and the support unit is separated from the bed body; when the bed body is in the lower position, the rotating part is in the second state, the support unit abuts against the bed body and provides a supporting force to the bed body.

[0037] Based on the above settings, when the bed body is in the upper position, the living space of the driver can be increased. And since no one is sleeping on it, the overall weight of the bed body and the items above is relatively small, so it can be directly lifted under the stretching of the lifting device. When the bed body is in the lower position, a person lies on the bed body, thus increasing the overall weight of the bed body. At this time, the support unit of the rotating part supports the bed body, thereby reducing the pulling force required by the lifting device and improving the stability of the overall lifting bed. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0039] Figure 1 FIG. 12 is a schematic structural diagram of the lifting bed in the upper position according to an embodiment of the present application.

[0040] Figure 2 FIG. 16 is another perspective schematic structural diagram of the lifting bed in the upper position according to an embodiment of the present application.

[0041] Figure 3 FIG. 20 is a schematic structural diagram of the lifting bed in the lower position according to an embodiment of the present application.

[0042] Figure 4 FIG. 24 is a schematic structural diagram of the lifting bed between the upper position and the lower position according to an embodiment of the present application.

[0043] Figure 5 FIG. 28 is a schematic diagram of the cooperation between the rotating part and the traction part in the first state according to an embodiment of the present application.

[0044] Figure 6 FIG. 32 is a schematic diagram of the cooperation between the rotating part and the traction part in the second state according to an embodiment of the present application.

[0045] Figure 7 The structural schematic diagram of the rotating part in the first state shown according to an embodiment of the present application.

[0046] Figure 8 The structural schematic diagram of the rotating part in the second state shown according to an embodiment of the present application.

[0047] Description of the reference numerals in the drawings

[0048] Lifting bed 10

[0049] Bed body 100

[0050] Upper position A1

[0051] Lower position A2

[0052] Rotating part 200

[0053] Support unit 210

[0054] Support surface 211

[0055] Rotating shaft 220

[0056] Fixing unit 230

[0057] Perforation 231

[0058] Blocking unit 240

[0059] First state B1

[0060] Second state B2

[0061] Traction part 300

[0062] Cooperating unit 310

[0063] Vertical direction X Detailed implementation manners

[0064] Here, the technical solutions in the embodiments (or "implementation manners") of the present application will be clearly and completely described in conjunction with the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0065] If there are terms related to directional indications or positional relationships in the embodiments of the present application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, lateral, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships, movement conditions, etc. between components in a specific posture (as shown in the drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first", "second", etc. involved in the embodiments of the present application are only for the purpose of convenient description and cannot be construed as indicating or implying relative importance.

[0066] Long-haul trucks generally include several main parts such as the cab (driver's cab), engine and power system, transmission system, cargo box / trailer, and electrical system. Among them, the cab (driver's cab) is where the driver operates the truck and contains a cockpit and a rest area. Control devices such as a steering wheel, seat, and instrument panel are provided in the cockpit. In some long-haul trucks, a small living space with facilities such as a bed, refrigerator, and storage locker is specially set up to facilitate the driver's rest. The engine and power system are usually located under or on the side of the cab and are the power source of the truck. It provides driving force for the entire vehicle and affects the performance of the truck such as speed and climbing ability. The transmission system includes components such as a clutch, transmission, and drive shaft, which are responsible for transmitting the power generated by the engine to the drive wheels, enabling the truck to move forward or backward and adjusting the speed and torque. The cargo box / trailer can be an enclosed carriage, flatbed cargo box, or special refrigerated carriage, etc., depending on the use, and is used to load and protect goods. For a tractor, it is connected to the trailer through a saddle. The electrical system is used to provide power support, including lighting lamps, signal lamps, in-vehicle electrical appliances, etc., to ensure the needs of night driving and communication.

[0067] These above-mentioned components are closely linked through careful design and manufacturing, enabling the driver to drive and live normally. Among them, the cab (driver's cab) is the area most closely related to the driver's life and directly affects the driver's living quality during driving. However, in a conventional cab, the bed 100 occupies the vast majority of the space, making the driver's living space very narrow.

[0068] In some solutions, the bed 100 can be arranged in the normal sleeping position when sleeping, and when moving, the bed 100 can be lifted upward to increase the driver's living space. The above process is achieved through a lifting device, and the lifting device bears the entire weight of the bed 100. However, when sleeping, since the whole person lies on the bed 100, the pressure on the lifting device will increase, and it is very easy for the lifting device to be damaged.

[0069] The present application provides a lift bed 10, refer to Figures 1-4As shown, the lift bed 10 includes a bed body 100, a rotating part 200, and a traction part 300. Among them, the bed body 100 can be switched between an upper position A1 and a lower position A2 in the vertical direction. The rotating part 200 includes a support unit 210, and the rotating part 200 can be switched between a first state B1 and a second state B2. It should be noted that the switching of the bed body 100 between the upper position A1 and the lower position A2 in the vertical direction here can be achieved under the action of a pulling device or other devices, and its form can be diverse. In addition, the lift bed 10 can be used not only for the above-mentioned vehicle but also for narrow living spaces, etc., which will not be elaborated in this application.

[0070] Among them, when the bed body 100 is in the upper position A1, the rotating part 200 is in the first state B1, and the support unit 210 is separated from the bed body 100. When the bed body 100 is in the lower position A2, the rotating part 200 is in the second state B2, the support unit 210 abuts against the bed body 100 and provides a supporting force to the bed body 100. That is, when the bed body 100 is in the upper position A1, the support unit 210 does not contact the bed body 100. When the bed body 100 is in the lower position A2, the support unit 210 supports the bed body 100 from below.

[0071] In Figure 1 and Figure 2 , the bed body 100 is in the upper position A1, and the rotating part 200 is in the first state B1. In Figure 3 , the bed body 100 is in the lower position A2, and the rotating part 200 is in the second state B2.

[0072] Based on the above settings, when the bed body 100 is in the upper position A1, the living space of the driver can be increased. And since no one is sleeping on it, the overall weight of the bed body 100 and the items above is relatively small, so it can be directly lifted under the stretching of the pulling device. When the bed body 100 is in the lower position A2, a person lies on the bed body 100, thus increasing the overall weight of the bed body 100. At this time, the support unit 210 of the rotating part 200 supports the bed body 100, thereby reducing the pulling force required by the pulling device and improving the stability of the overall lift bed 10.

[0073] In some embodiments, as shown in reference to Figures 5-8 , the cab includes side walls (not shown in the figure), and the side walls include an opening (not shown in the figure). The rotating part 200 includes a shielding unit 240. When the rotating part 200 is in the first state B1, the shielding unit 240 shields the opening; when the rotating part 200 is in the second state B2, the rotating part 200 rotates out of the opening, and the support unit 210 abuts against the bed body 100. The cab can be used in the above-mentioned vehicle.

[0074] Based on the above settings, when the bed body 100 is in the upper position A1, the living space of the driver can be increased. At this time, the shielding unit 240 shields the opening, making the effect beautiful and not occupying the space on the wall. And because no one is sleeping on the bed body 100, the overall weight of the bed body 100 and the items above is relatively small, so it can be directly lifted under the stretching of the lifting device. When the bed body 100 is in the lower position A2, a person lies on the bed body 100, thereby increasing the overall weight of the bed body 100. At this time, the support unit 210 of the rotating part 200 supports the bed body 100, thereby reducing the pulling force required by the lifting device and improving the stability of the overall lifting bed 10.

[0075] In one embodiment, referring to Figures 1-4 As shown, the lifting bed 10 further includes an energy storage part (not shown in the figure), and the energy storage part is connected to the rotating part 200. When the bed body 100 turns from the upper position A1 to the lower position A2, the traction part 300 pulls the rotating part 200 to rotate from the first state B1 to the second state B2, and the energy storage part stores energy. When the bed body 100 turns from the lower position A2 to the upper position A1, the energy storage part releases energy to push the rotating part 200 back from the second state B2 to the first state B1.

[0076] It should be noted that the energy storage part here can be a torsion spring. When the traction part 300 pulls the rotating part 200 to rotate from the first state B1 to the second state B2, the torsion spring is stretched to store energy. When the bed body 100 turns from the lower position A2 to the upper position A1, the torsion spring automatically releases energy to make the rotating part 200 automatically bounce back to its original position. Of course, in addition to the torsion spring, the above energy storage part can also be a compression spring, rubber and other components that can store and release energy.

[0077] Based on the above settings, due to the addition of the energy storage part, the energy storage part can store energy when the bed body 100 turns from the upper position A1 to the lower position A2, and when the bed body 100 returns to the upper position A1, the energy storage part directly bounces the rotating part 200 back to its original position, thereby making it return. This process uses the originally existing displacement to store energy and releases it later, without adding other operation processes and components, and the design is ingenious. In addition, the design of the energy storage part can also return the rotating part 200 to its original position in the first time, so that the user can hardly feel the existence of the rotating part 200, thereby improving the use experience.

[0078] In one embodiment, referring to Figures 5-8 As shown, the rotating part 200 includes a rotating shaft 220, and the support unit 210 is rotatably arranged along the rotating shaft 220. When the rotating part 200 is in the second state B2, the support surface of the support unit 210 is arranged parallel to the horizontal plane. It should be noted that the support surface being arranged parallel to the horizontal plane here can be understood as being parallel to the lower surface of the bed body 100.

[0079] Based on the above settings, after the support unit 210 rotates by a certain angle, the support surface is parallel to the horizontal plane, so that the bed body 100 can cooperate well with the support surface. At this time, the contact surface between the support unit 210 and the bed body 100 is larger, and thus the bed body 100 is more stable and not easily detached from the support unit 210.

[0080] In one embodiment, with continued reference to Figures 5-8 As shown, the lifting bed 10 includes a traction part 300. One end of the traction part 300 is connected to the bed body 100, and the other end of the traction part 300 is connected to the rotating part 200. The rotating part 200 further includes a fixing unit 230. The fixing unit 230 is disposed on the support unit 210, and the fixing unit 230 is connected to the traction part 300. When the rotating part 200 is in the second state B2, the included angle α between the connection line from the fixing unit 230 to the rotating shaft 220 and the traction part 300 is less than or equal to 175°. The traction part 300 here can be a rope, a belt, etc., and its material is not limited.

[0081] Refer to Figure 5 and Figure 6 As shown, as the traction part 300 is stretched, the included angle α continuously increases. In the second state B2, the rotational force transmitted to the rotating part 200 via the traction part 300 is its lateral component force. At this time, if the included angle α between the connection line from the fixing unit 230 to the rotating shaft 220 and the traction part 300 is too large (180°), then its lateral component force is approximately equal to 0, so a very large pulling force needs to be applied, and thus it is very easy to cause the fracture of the traction part 300. In this application, the included angle α between the connection line from the fixing unit 230 to the rotating shaft 220 and the traction part 300 is set to be less than or equal to 175°, which can well avoid the fracture of the traction part 300, and thus enhance the overall reliability of the lifting bed 10.

[0082] According to the above settings, based on the applicant's continuous experiments, the included angle α can be set to be greater than or equal to 150° and less than or equal to 170°. Within this range, on the one hand, the traction part 300 can provide sufficient component force to the rotating part 200, and on the other hand, it can also ensure that the traction part 300 is not broken, thereby improving the overall reliability of the lifting bed 10. For example, the included angle α between the connection line from the fixing unit 230 to the rotating shaft 220 and the traction part 300 can be 150°, 155°, 160°, 165°, 170°.

[0083] In one embodiment, refer to Figure 2 and Figure 3As shown, the rotating part 200 further includes a fixing unit 230. The fixing unit 230 is disposed on the supporting unit 210. The fixing unit 230 includes a perforation 231. The traction part 300 is passed through the perforation 231, and a matching unit 310 is disposed at the end of the traction part 300. The diameter of the matching unit 310 is larger than the diameter of the perforation 231.

[0084] Based on the above settings, when the bed body 100 switches from the upper position A1 to the lower position A2 in the vertical direction, the matching unit 310 will finally be stuck outside the perforation 231. At this time, the traction part 300 is tensioned, thereby applying a pulling force to the fixing unit 230, and further causing the rotating part 200 to rotate to the second state B2. In addition, in this embodiment, since the traction part 300 needs to be pulled through the perforation 231 and has a matching unit 310 at its tail, the matching unit 310 provides a downward gravity, and the perforation 231 provides a certain degree of limit. Therefore, under the action of gravity and limit, the traction part 300 is not easily knotted by itself, and thus is not easily malfunctioned, thereby improving the durability of the lifting bed 10.

[0085] In an embodiment, the lifting bed 10 further includes a blocking part (not shown in the figure). When the rotating part 200 is in the first state B1, the blocking part is used to block the rotating part 200 from continuing to rotate in the direction away from the second state B2. When the rotating part 200 is in the second state B2, the blocking part is used to block the rotating part 200 from continuing to rotate in the direction away from the first state B1. It should be noted that the above-mentioned blocking part can be set as a groove on the rotating part 200 and a protrusion on the wall. When the protrusion abuts against the edge of the groove, it will stop, or the blocking part is only a physical blocking unit, which is directly disposed at the first state B1 and the second state B2 of the rotating part 200 to block the rotating part 200 from further rotating.

[0086] Based on the above settings, the blocking part can limit the rotating part 200 within a certain range for conversion, so that the rotating part 200 can be more accurately located in the first state B1 to cooperate with the wall, and can also be more accurately located in the second state B2 to cooperate with the bed body 100, thereby obtaining a better effect.

[0087] Let the rotation angle of the rotating part 200 from the first state B1 to the second state B2 be the first angle. The applicant found in the experiment that when the value of the first angle is too large, it will cause the pulling time of the traction part 300 and the rotating part 200 to be too long, and it is easy to cause the fracture of the traction part 300. When the value of the first angle is too small, it will cause that a small pulling force will cause the rotating part 200 to switch between the first state B1 and the second state B2, and the extended rotating part 200 is small, and the bed body 100 is easy to slide down from the rotating part 200, and thus fails to play a supporting role.

[0088] In the present application, the first angle is set to be greater than or equal to 10° and less than or equal to 150°. Within this range, on the one hand, it can avoid the traction part 300 from being broken, and on the other hand, it can also avoid the bed body 100 from slipping. For example, the first angle can be set to 10°, 20°, 30°, 40°, 50°, 60°, 70°, 80°, 90°, 100°, 110°, 120°, 130°, 140°, 150°.

[0089] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of the present application is not limited to the precise structures described in the above embodiments and shown in the drawings; all modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the scope of protection of the present application.

Claims

1. A lifting bed, characterized in that, The lift bed includes: A bed body that can be switched between an upper position and a lower position in the vertical direction. A rotating part that includes a support unit and can be switched between a first state and a second state. Wherein, when the bed body is in the upper position, the rotating part is in the first state, and the support unit is arranged separately from the bed body; when the bed body is in the lower position, the rotating part is in the second state, the support unit abuts against the bed body and provides a supporting force to the bed body.

2. The lift bed according to claim 1, characterized in that, The lift bed further includes an energy storage part that is connected to the rotating part. When the bed body rotates from the upper position to the lower position, the rotating part rotates from the first state to the second state and stores energy in the energy storage part. When the bed body rotates from the lower position to the upper position, the energy storage part releases energy to push the rotating part back from the second state to the first state.

3. The lift bed according to claim 1, characterized in that, The rotating part includes a rotating shaft, and the support unit is rotatably arranged along the rotating shaft. When the rotating part is in the second state, the supporting surface of the support unit is parallel to the horizontal plane.

4. The lift bed according to claim 3, characterized in that, The lift bed includes a traction part, one end of which is connected to the bed body and the other end is connected to the rotating part. The rotating part further includes a fixing unit arranged on the support unit, and the fixing unit is connected to the traction part. When the rotating part is in the second state, the included angle between the connection line from the fixing unit to the rotating shaft and the traction part is less than or equal to 175°.

5. The lift bed according to claim 4, characterized in that, The included angle is greater than or equal to 150° and less than or equal to 170°.

6. The lift bed according to claim 4, characterized in that, The rotating part further includes a fixing unit arranged on the support unit. The fixing unit includes a perforation, the traction part passes through the perforation, and a matching unit is arranged at the end of the traction part, and the diameter of the matching unit is greater than the diameter of the perforation.

7. The lift bed according to claim 1, wherein, The lift bed further includes a blocking part. When the rotating part is in the first state, the blocking part is used to block the rotating part from continuing to rotate in the direction away from the second state. When the rotating part is in the second state, the blocking part is used to block the rotating part from continuing to rotate in the direction away from the first state.

8. The lift bed according to claim 1, characterized in that, Let the rotation angle for the rotating part to be converted from the first state to the second state be a first angle, and the first angle is greater than or equal to 10° and less than or equal to 150°.

9. A cab, characterized in that, The cab includes side walls and the lift bed according to any one of claims 1-8, and the side walls include an opening. The rotating part includes a shielding unit. When the rotating part is in the first state, the shielding unit shields the opening. When the rotating part is in the second state, the rotating part rotates out from the opening, and the support unit abuts against the bed body.

10. A vehicle, characterized in that, The vehicle includes the cab according to claim 9.

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