Locking mechanism and folding sleeping berth

By designing a folding berth with a locking mechanism, the problem of narrow space in traditional truck berths is solved, allowing multiple people to rest without affecting the driving space, and providing safety protection to meet the driver's comfort and safety needs.

CN120660974APending Publication Date: 2025-09-19AIRLOP BEIJING AUTOMOBILE TECH
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Patent Information

Application Number
CN202410312826.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-03-19
Publication Date
2025-09-19

AI Technical Summary

Technical Problem

The sleeper berths in traditional trucks are too narrow to meet the rest needs of multiple people, and widening the berths will affect the driving space, posing a safety hazard.

Method used

A folding sleeper with a locking mechanism is designed. The folding and unfolding of the sleeper are achieved through components such as locking plates, side panels, and locking posts, and a protective net is combined to provide safety protection.

Benefits of technology

Without affecting the driving space, it provides space for multiple people to rest, and the berths can be quickly unfolded when needed to increase the rest area while preventing the driver from falling and falling.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a locking mechanism and a folding seat. The locking mechanism comprises a locking plate, a side plate, a locking column, a clamping strip, a spring, a pull wire, a sliding groove, a shell, a fixing bolt, a pull ring and a limiting end. The locking plate is provided with a locking hole, a buffer channel and a first fixing hole; the side plate is provided with a first clamping groove, a second clamping groove, a third clamping groove, a limiting column and a second fixing hole. The folding sleeping berth comprises a plurality of locking mechanisms, an auxiliary locking plate, a baffle, a backrest, a lying plate, a framework, a protective net, a hook, a pulley and a sliding rail. By adopting the folding sleeping berth with the locking mechanism, the problem that the sleeping berth is narrow can be solved, the rear-row sleeping berth occupies extremely small space before being unfolded in a folding mode and can be used as a storage room for storing objects or sitting, and when a driver has a rest due to driving fatigue, the sleeping berth can be unfolded by unlocking the locking mechanism, so that the resting area of the sleeping berth is increased, and a larger resting space is provided; the protective net is arranged, so that the driver who likes to turn over in the sleeping process can be protected, and falling injury is prevented.
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Description

Technical Field

[0001] The invention relates to the field of berths, and in particular to a folding berth with a locking mechanism. Background Art

[0002] For truck drivers, resting on the road has long been a habit. Due to space limitations, the traditional truck sleeper berth is only suitable for one person to lie down. This design cannot effectively relieve the driver's fatigue, especially for fatter drivers. Truck drivers are often equipped with one or two assistants during transportation. At this time, if two people want to rest together, the existing berth is difficult to meet this demand, because directly widening the berth will affect the driver's driving space and increase driving risks. This method is not allowed.

[0003] To address this problem, the designer designed a folding berth. Normally, the berth width is the same as that of an ordinary berth. When in use, you only need to control the unlocking mechanism designed by the designer to complete the unlocking, which can meet the need to widen the berth, allowing one person to rest comfortably and multiple people to rest simply. Summary of the Invention

[0004] In view of the above problems, the present invention is proposed to provide a locking mechanism and a folding berth that overcome the above problems or at least partially solve the above problems.

[0005] According to one aspect of the present invention, a locking mechanism is provided, comprising a locking plate, a side plate, a locking column, a clamping strip, a spring, a pull wire, a slide groove, a housing, a fixing bolt, a pull ring, and a limit end;

[0006] The inner diameter of the spring is larger than the outer diameter of the locking column, and the outer diameter of the spring is smaller than the length of the clamping strip;

[0007] The locking plate is provided with a locking hole, a buffer channel, and a first fixing hole, and the diameter of the locking hole is larger than the diameter of the locking column;

[0008] The side plate is provided with a first card slot, a second card slot, a third card slot, a limiting column, and a second fixing hole. The first card slot and the second card slot are provided with through holes, and the diameter of the through holes is larger than the diameter of the locking column;

[0009] The sliding groove is adaptively fixed on the third clamping groove.

[0010] Preferably, the locking post is provided with a through hole, and the clamping strip passes through the through hole and is adaptively connected to the locking post.

[0011] Preferably, the locking column can move freely in the locking hole, the first locking slot and the second locking slot.

[0012] Preferably, one end of the pull wire is adaptively connected to the locking column, the pull wire passes through the limiting column and enters the sliding groove, and the other end of the pull wire is fixed to the limiting end and adaptively connected to the pull ring.

[0013] Preferably, when no external force is applied to the pull ring, the pull wire does not apply tension to the locking column, and the locking column moves toward the first slot under the action of the spring force and enters the locking hole to complete locking;

[0014] When the locking bar contacts the first locking slot, the locking column stops moving, and the bottom of the locking column enters the locking hole to complete locking.

[0015] Preferably, when the pull ring is stretched by an external force, the pull wire forces the locking column to move toward the second slot, and the locking column leaves the locking hole to complete unlocking;

[0016] When the locking bar contacts the second locking slot, the locking column stops moving.

[0017] According to another aspect of the present invention, a folding sleeper is provided, comprising a plurality of the above-mentioned locking mechanisms, auxiliary locking plates, baffles, backrests, lying boards, frames, protective nets, hooks, pulleys, and slide rails;

[0018] The auxiliary locking plate and the locking plate in the locking mechanism are the same component; the number of the auxiliary locking plates is equal to the number of the locking mechanisms;

[0019] The locking plate in the locking mechanism is fixedly connected to the cab floor through the first fixing hole and the fixing bolt;

[0020] The thickness of the backrest is equal to the height of the baffle, and the thickness of the backrest is equal to the thickness of the combination of the lying board, the frame, the pulley, and the slide rail;

[0021] The backrest and the lying plate are adaptively connected, and the backrest can be flipped around the lying plate;

[0022] The lying board is adaptively connected above the frame;

[0023] The slide rail is fixedly connected to the cab floor, and the slide rail allows the pulley to roll freely inside the slide rail.

[0024] Preferably, the frame is fixedly connected to the protective net, the frame is fixedly connected to the hook, the frame is adaptively connected to the pulley, the frame is fixedly connected to the side panel through the second fixing hole and the fixing bolt, and the frame is fixedly connected to the limit end.

[0025] Preferably, when the folding berth is not unfolded, the backrest is located directly above the baffle, at which time the locking mechanism is in a locked state, and the frame and the cab floor are fixed together by the locking mechanism and cannot move.

[0026] Preferably, when the folding berth is ready to be unfolded, the user pulls the pull ring, the locking post leaves the locking hole to complete the unlocking, and the user moves the frame and releases the pull ring, the locking post leaves the locking plate through the buffer channel;

[0027] When the frame moves to the farthest position, the locking post passes through the buffer channel of the auxiliary locking plate and enters the locking hole in the auxiliary locking plate to complete the locking. Then the user lays the backrest flat to complete the unfolding of the folding berth.

[0028] When the user is ready to fold the folding berth, first flip the backrest onto the lying plate, then pull the pull ring, the locking column leaves the locking hole of the auxiliary locking plate to complete the unlocking, push the frame close to the baffle and then release the pull ring, when the locking column passes through the buffer channel of the locking plate and returns to the locking hole on the locking plate to complete the locking, flip the backrest back to the top of the baffle to complete the folding of the folding berth.

[0029] The beneficial effects of the present invention are as follows: the use of a folding berth with a locking mechanism can effectively solve the problem of narrow berths. Normally, when a driver drives a truck, the rear berths are folded to occupy a very small space, which can be used as a storage room or a seat. When the driver is tired of driving and stops to rest, the berth can be unfolded by unlocking the locking mechanism, thereby increasing the rest area of ​​the berth and providing a larger rest space. At the same time, the provision of a protective net can also provide protection for drivers who like to roll and flip during sleep to prevent falls.

[0030] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are specifically listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference symbols are used throughout the drawings to represent the same components. In the drawings:

[0032] Figure 1 shows an overall diagram of a locking mechanism according to one embodiment of the present invention;

[0033] Figure 2 A partial view of a locking portion of a locking mechanism according to one embodiment of the present invention is shown;

[0034] Figure 3 A partial view of a pull ring portion of a locking mechanism according to one embodiment of the present invention is shown;

[0035] Figure 4 A front view of a folding berth according to one embodiment of the present invention is shown;

[0036] Figure 5 A rear view of a folding berth according to one embodiment of the present invention is shown;

[0037] Figure 6 Shows a front view of a folding berth unfolded according to one embodiment of the present invention;

[0038] Figure 7 Shows a rear view of a folding berth unfolded according to one embodiment of the present invention;

[0039] Reference numerals:

[0040] 1. Locking mechanism

[0041] 2. Locking plate

[0042] 2-1. Locking hole

[0043] 2-2. Buffer Channel

[0044] 2-3. First fixing hole

[0045] 3. Side panels

[0046] 3-1. First card slot

[0047] 3-2. Second card slot

[0048] 3-3. Third card slot

[0049] 3-4. Limiting column

[0050] 3-5. Second fixing hole

[0051] 4. Locking column

[0052] 5. Card strip

[0053] 6. Spring

[0054] 7. Pull the wire

[0055] 8. Chute

[0056] 9. Shell

[0057] 10. Fixing bolts

[0058] 11. Pull ring

[0059] 12. Limit end

[0060] 13. Folding sleeper

[0061] 14. Auxiliary locking plate

[0062] 15. Baffle

[0063] 16. Backrest

[0064] 17. Lying board

[0065] 18. Skeleton

[0066] 19. Protective net

[0067] 20. Hook

[0068] 21. Pulley

[0069] 22. Slide rail DETAILED DESCRIPTION

[0070] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0071] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, the term "connected" can be used for both fixing and circuit connection.

[0072] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0073] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0074] Example 1:

[0075] According to one embodiment of the present invention, a locking mechanism 1 is designed. Figure 1 shows an overall diagram of a locking mechanism according to an embodiment of the present invention, Figure 2 FIG. 1 shows a partial view of a locking portion of a locking mechanism according to an embodiment of the present invention, as shown in FIG. Figure 1 and Figure 2 As shown, the locking mechanism 1 includes a locking plate 2, a side plate 3, a locking column 4, a clamping strip 5, a spring 6, a pull wire 7, a slide groove 8, a housing 9, a fixing bolt 10, a pull ring 11, and a limit end 12;

[0076] Specifically, the inner diameter of the spring 6 is larger than the outer diameter of the locking column 4 , and the outer diameter of the spring 6 is smaller than the length of the clamping strip 5 ;

[0077] Specifically, the locking plate 2 is provided with a locking hole 2-1, a buffer channel 2-2, and a first fixing hole 2-3. The diameter of the locking hole 2-1 is larger than the diameter of the locking column 4. The buffer channel 2-2 is in the shape of a slide to allow the locking column 4 to slide freely thereon. The first fixing hole 2-3 is mainly used to cooperate with the fixing bolt 10 to fix the locking plate 2.

[0078] Specifically, the side panel 3 is provided with a first card slot 3-1, a second card slot 3-2, a third card slot 3-3, a limiting column 3-4, and a second fixing hole 3-5. The first card slot 3-1 and the second card slot 3-2 are provided with through holes, the diameter of which is larger than the diameter of the locking column 4. The second fixing hole 3-5 is mainly used to cooperate with the fixing bolt 10 to fix the side panel 3;

[0079] Specifically, the slide groove 8 is adaptively fixed on the third slot 3 - 3 , and the slide groove 8 and the limiting column 3 - 4 are used to change the moving direction of the pull wire 7 to make its movement smoother.

[0080] It can be seen that this locking mechanism is different from the existing locking mechanism and can achieve remote control locking and unlocking.

[0081] In some embodiments of the present invention, Figure 2 As shown, the locking post 4 is provided with a through hole, and the clamping strip 5 passes through the through hole and is adaptively connected to the locking post 4 .

[0082] It can be seen that the provision of the locking strip can restrict the locking column from leaving the area between the first locking slot and the second locking slot.

[0083] In some embodiments of the present invention, Figure 2 As shown, the locking column 4 can move freely in the locking hole 2-1, the first locking slot 3-1 and the second locking slot 3-2.

[0084] In some embodiments of the present invention, Figure 3 FIG. 1 shows a partial view of a locking mechanism pull ring according to an embodiment of the present invention, as shown in FIG. Figure 2 and Figure 3 As shown, one end of the pull wire 7 is adaptively connected to the locking column 4, and then the pull wire 7 changes direction multiple times through the limit column 3-4 and smoothly enters the slide groove 8 for buffering to prevent it from leaving the side panel 3 and being stuck. The other end of the pull wire 7 is fixed to the limit end 12 and adaptively connected to the pull ring 11.

[0085] It can be seen that the setting of the limit column is mainly used to change the direction of the wire pulling so that it moves in the desired direction; the setting of the slide groove is mainly for lubrication and protection to prevent the wire pulling from being stuck when leaving the side plate, and serious wear caused by long-term movement.

[0086] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, when no external force is applied to the pull ring 11, the pull wire 7 also does not apply tension to the locking column 4. The locking column 4 approaches the first slot 3-1 under the elastic force of the spring 6 and completes locking when entering the locking hole 2-1;

[0087] Specifically, when the clamping strip 5 contacts the first clamping slot 3 - 1 , the locking column 4 stops moving, and at this time, the bottom of the locking column 4 enters the locking hole 2 - 1 to complete the locking.

[0088] It can be seen that when the pull ring does not apply external force to the pull wire, as long as the locking column is always inside the locking hole, the locking mechanism is in a locked state.

[0089] In some embodiments of the present invention, Figure 1 As shown in the figure, when the pull ring 11 is stretched by an external force, the pull wire 11 forces the locking column 4 to move toward the second slot 3-2, and finally the locking column 4 leaves the locking hole 2-1 to complete the unlocking;

[0090] Specifically, when the clamping strip 5 contacts the second clamping slot 3 - 2 and cannot move, the locking column 4 stops moving, and at this time the locking mechanism 1 is in an unlocked state.

[0091] It can be seen that as long as the pull ring applies external force to the pull wire, the pull wire drives the locking column to leave the locking hole, thereby achieving the unlocking goal of the locking mechanism.

[0092] Example 2:

[0093] According to another embodiment of the present invention, a folding berth 13 is designed. Figure 4 FIG. 1 shows a front view of a folding berth according to an embodiment of the present invention, Figure 5 FIG. 1 shows a rear view of a folding berth according to an embodiment of the present invention, as shown in FIG. Figure 4 and Figure 5 As shown, it is characterized in that the folding berth 13 includes a plurality of the above-mentioned locking mechanisms 1, auxiliary locking plates 14, baffles 15, backrests 16, lying plates 17, frames 18, protective nets 19, hooks 20, pulleys 21, and slide rails 22;

[0094] Specifically, the auxiliary locking plate 2 is the same component as the locking plate 2 in the locking mechanism 1; the number of the auxiliary locking plates 14 is equal to the number of the locking mechanism 1;

[0095] Specifically, the locking plate 2 in the locking mechanism 1 is fixedly connected to the cab floor through the first fixing holes 2-3 and the fixing bolts 10. The cab floor here refers to the position where the berth is set in the cab and should not be understood as the lowest position of the cab;

[0096] Specifically, the thickness of the backrest 16 is equal to the height of the baffle 15, and the thickness of the backrest 16 is equal to the thickness of the combination of the lying board 15, the frame 18, the pulley 21, and the slide rail 22. This arrangement ensures that when the backrest 16 is laid flat, the height of the entire rest area is consistent, giving the user a flat and comfortable experience.

[0097] Specifically, the backrest 16 and the lying plate 17 are adaptively connected, and the backrest 16 can be flipped around the lying plate 17. The backrest 16 and the lying plate 17 can be connected by a strong cloth strip, a hinge, or other connection methods that do not affect the flipping of the two.

[0098] Specifically, the lying plate 17 is adaptively connected to the top of the frame 18, and the two are fixed together when not necessary, so as to prevent the lying plate 17 from flying up and injuring the user due to emergency braking or other situations;

[0099] Specifically, the slide rail 22 is fixedly connected to the cab floor, where the cab floor refers to the position where the berth is set in the cab, and should not be understood as the lowest position of the cab. The slide rail 22 allows the pulley 21 to roll freely inside it.

[0100] It can be seen that before the folding berth is unfolded for use, the backrest can be used as a cushion. Compared with traditional berths, it can provide a more comfortable riding experience. When the backrest is folded down, the width of the berth can be increased, providing a more comfortable lying experience.

[0101] In some embodiments of the present invention, Figure 5 As shown, the skeleton 18 is fixedly connected to the protective net 19, the skeleton 18 is fixedly connected to the hook 20, the skeleton 18 is adaptively connected to the pulley 21, the skeleton 18 is fixedly connected to the side panel 3 through the second fixing hole 3-5 and the fixing bolt 10, and the skeleton 18 is fixedly connected to the limit end 12.

[0102] It can be seen that the setting of the protective net is mainly to prevent the driver from flipping over and falling from the berth when resting. The setting of the hook is mainly to facilitate the driver to hang some sundries on it for quick access when used. The setting of the pulley is mainly to facilitate the free sliding of the frame on the slide rail.

[0103] In some embodiments of the present invention, Figure 5 As shown, when the folding berth 13 is not unfolded, the backrest 16 is located directly above the baffle 15. At this time, the locking mechanism 1 is in a locked state, and the frame 18 and the cab floor are fixed together by the locking mechanism 1 and cannot move.

[0104] It can be seen that the design of this locking structure can prevent emergency braking from causing the berth to fly out and injure the user, thereby increasing safety.

[0105] In some embodiments of the present invention, Figure 6 FIG. 1 shows a front view of a folding berth according to an embodiment of the present invention. Figure 7 Shown is a rear view of a folding berth according to an embodiment of the present invention, as shown in FIG. Figure 6 and Figure 7 As shown, when the folding berth 13 is ready to be unfolded, the user pulls the pull ring 11, and the locking post 4 leaves the locking hole 2-1 to complete the unlocking. After the user moves the frame 18 and releases the pull ring, the locking post 4 leaves the locking plate 2 through the buffer channel 2-2;

[0106] Specifically, when the frame 18 moves to the farthest position, the locking post 4 passes through the buffer channel of the auxiliary locking plate 14 and enters the locking hole in the auxiliary locking plate 14 to complete the locking. Then, the user lays the backrest 16 flat to complete the unfolding of the folding berth 13.

[0107] Specifically, when the user is ready to fold up the folding berth 13, first flip the backrest 16 over and place it on the lying board 17, then pull the pull ring 11, the locking column 4 leaves the locking hole 2-1 of the auxiliary locking plate 14 to complete the unlocking, push the frame 18 close to the baffle 15 and then release the pull ring, when the locking column 4 passes through the buffer channel 2-2 of the locking plate 2 and returns to the locking hole 2-1 on the locking plate 2 to complete the locking, flip the backrest 16 back to the top of the baffle 15 to complete the folding of the folding berth 13.

[0108] To sum up, the use of a folding berth with this locking mechanism can effectively solve the problem of narrow berths. Normally, when the driver drives a truck, the rear berth is folded to take up a very small space, which can be used as a storage room or a seat. When the driver is tired of driving and stops to rest, the berth can be unfolded by unlocking the locking mechanism, thereby increasing the rest area of ​​the berth and providing a larger rest space. At the same time, the setting of the protective net can also provide protection for drivers who like to roll and flip during sleep to prevent falls.

[0109] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention are included in the scope of protection of the present invention.

Claims

1. A locking mechanism, characterized in that: The locking mechanism includes a locking plate, a side plate, a locking column, a clamping strip, a spring, a pull wire, a slide groove, a housing, a fixing bolt, a pull ring, and a limit end; The inner diameter of the spring is larger than the outer diameter of the locking column, and the outer diameter of the spring is smaller than the length of the clamping strip; The locking plate is provided with a locking hole, a buffer channel, and a first fixing hole, and the diameter of the locking hole is larger than the diameter of the locking column; The side plate is provided with a first card slot, a second card slot, a third card slot, a limiting column, and a second fixing hole. The first card slot and the second card slot are provided with through holes, and the diameter of the through holes is larger than the diameter of the locking column; The sliding groove is adaptively fixed on the third clamping groove.

2. The locking mechanism according to claim 1, wherein: The locking post is provided with a through hole, and the clamping strip passes through the through hole and is adaptively connected to the locking post.

3. The locking mechanism according to claim 1, wherein: The locking column can move freely in the locking hole, the first locking slot and the second locking slot.

4. The locking mechanism according to claim 1, wherein: One end of the pull wire is adaptively connected to the locking column, and the pull wire passes through the limiting column and enters the sliding groove. The other end of the pull wire is fixed to the limiting end and adaptively connected to the pull ring.

5. The locking mechanism according to claim 1, wherein: When no external force is applied to the pull ring, the pull wire does not apply tension to the locking column, and the locking column moves toward the first slot and enters the locking hole to complete locking under the action of the spring force; When the locking bar contacts the first locking slot, the locking column stops moving, and the bottom of the locking column enters the locking hole to complete locking.

6. The locking mechanism according to claim 1, wherein: When the pull ring is stretched by an external force, the pull wire forces the locking post to move toward the second slot, and the locking post leaves the locking hole to complete unlocking; When the locking bar contacts the second locking slot, the locking column stops moving.

7. A folding berth, characterized in that: The folding berth comprises a plurality of locking mechanisms, auxiliary locking plates, baffles, backrests, lying boards, frames, protective nets, hooks, pulleys, and slide rails as described in claims 1 to 6; The auxiliary locking plate and the locking plate in the locking mechanism are the same component; the number of the auxiliary locking plates is equal to the number of the locking mechanisms; The locking plate in the locking mechanism is fixedly connected to the cab floor through the first fixing hole and the fixing bolt; The thickness of the backrest is equal to the height of the baffle, and the thickness of the backrest is equal to the thickness of the combination of the lying board, the frame, the pulley, and the slide rail; The backrest and the lying plate are adaptively connected, and the backrest can be flipped around the lying plate; The lying board is adaptively connected above the frame; The slide rail is fixedly connected to the cab floor, and the slide rail allows the pulley to roll freely inside the slide rail.

8. The folding berth according to claim 7, characterized in that: The frame is fixedly connected to the protective net, the frame is fixedly connected to the hook, the frame is adaptively connected to the pulley, the frame is fixedly connected to the side plate through the second fixing hole and the fixing bolt, and the frame is fixedly connected to the limit end.

9. The folding berth according to claim 7, characterized in that: When the folding berth is not unfolded, the backrest is located directly above the baffle. At this time, the locking mechanism is in a locked state, and the frame and the cab floor are fixed together and cannot move by the locking mechanism.

10. The folding berth according to claim 7, characterized in that: When the folding berth is ready to be unfolded, the user pulls the pull ring, the locking post leaves the locking hole to complete the unlocking, and the user moves the frame and releases the pull ring, and the locking post leaves the locking plate through the buffer channel; When the frame moves to the farthest position, the locking post passes through the buffer channel of the auxiliary locking plate and enters the locking hole in the auxiliary locking plate to complete the locking, and then the user lays the backrest flat to complete the unfolding of the folding berth; When the user is ready to fold the folding berth, first flip the backrest over and place it on the lying board, then pull the pull ring, the locking column leaves the locking hole of the auxiliary locking plate to complete the unlocking, push the frame close to the baffle and then release the pull ring, when the locking column passes through the buffer channel of the locking plate and returns to the locking hole on the locking plate to complete the locking, flip the backrest back to the top of the baffle to complete the folding of the folding berth.