Locking mechanism and folding sleeping berth

By designing a folding sleeper with a locking mechanism, the problem of insufficient space for traditional truck sleepers is solved, and the sleeper is widened when needed is achieved, providing greater rest space and increasing safety, preventing drivers from resting Falling.

CN222217544UActive Publication Date: 2024-12-24AIRLOP BEIJING AUTOMOBILE TECH
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202420532179.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-19
Publication Date
2024-12-24
Estimated Expiration
2034-03-19

AI Technical Summary

Technical Problem

Due to space limitations, traditional truck sleepers cannot meet the needs of multiple people to rest at the same time. The widening of the sleepers will affect the driving space and increase the driving risk.

Method used

A folding sleeper with a locking mechanism is designed to occupy a small space normally, and the sleeper is widened by an unlocking mechanism when needed, providing a larger rest area, and protecting the driver through a protective net.

Benefits of technology

It effectively solves the problem of narrow sleeper berths, provides a larger rest space, ensures that the driver has enough rest area when he is tired, and prevents fall injuries.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222217544U_ABST
    Figure CN222217544U_ABST
Patent Text Reader

Abstract

The utility model discloses a locking mechanism and a folding sleeping berth. 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.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

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

[0002] For truck drivers, resting in the truck on the road has long been a habit. Due to space limitations, the area of ​​traditional truck berths is only suitable for one person to simply 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, it is difficult for existing berths 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 designers designed a folding berth. Normally, the berth width is the same as that of an ordinary berth. When in use, one only needs to control the unlocking mechanism designed by the designer to complete the unlocking, which can meet the need to widen the berth and enable a single person to rest comfortably or multiple people to rest simply. Utility Model Content

[0004] In view of the above problems, the present utility model 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 utility model, a locking mechanism is provided, the locking mechanism 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 a through hole, and the diameter of the through hole is larger than the diameter of the locking column;

[0009] The slide slot is adaptively fixed on the third slot.

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

[0011] Preferably, the locking column can move freely in the locking hole, the first slot and the second 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 a pulling force 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 elastic force;

[0014] When the locking strip 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 utility model, a folding berth is provided, the folding berth 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 lying board, the frame, the pulley and the slide rail combined together;

[0021] The backrest is adaptively connected to the lying board, and the backrest can be flipped around the lying board;

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

[0023] The slide rail is fixedly connected to the bottom plate of the cab, 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 via 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 column leaves the locking hole to complete unlocking, and the user moves the frame and releases the pull ring, and the locking column leaves the locking plate through the buffer channel;

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

[0028] When the user is ready to fold up the foldable berth, first flip the backrest 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, the locking is completed, and the backrest is flipped back to the top of the baffle to complete the folding of the foldable berth.

[0029] The beneficial effects of the utility model are as follows: the folding berth with the locking mechanism can effectively solve the problem of narrow berths. Usually, when the driver drives the truck, the rear berths are folded and take up very little space, which can be used as a storage room or a seat. When the driver stops to rest due to driving fatigue, the berth can be unfolded by unlocking the locking mechanism, thereby increasing the resting area of ​​the berth and providing a larger resting space. At the same time, the provision of the 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 utility model. In order to more clearly understand the technical means of the utility model, 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 utility model more obvious and easy to understand, the specific implementation methods of the utility model are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not considered to be limiting of the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0032] Figure 1 An overall diagram of a locking mechanism according to an embodiment of the utility model is shown;

[0033] Figure 2 A partial view of a locking part of a locking mechanism according to an embodiment of the utility model is shown;

[0034] Figure 3 A partial view of a locking mechanism pull ring according to an embodiment of the utility model is shown;

[0035] Figure 4 A front view of a folding berth according to an embodiment of the utility model is shown;

[0036] Figure 5 A rear view of a folding berth according to an embodiment of the utility model is shown;

[0037] Figure 6 A front view of a folding berth according to an embodiment of the utility model is shown;

[0038] Figure 7 A rear view of a folding berth according to an embodiment of the utility model is shown;

[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] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the 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. On the contrary, 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 a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. 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, connection can be used for fixing or for 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 operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0073] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0074] Embodiment 1:

[0075] According to an embodiment of the present utility model, a locking mechanism 1 is designed. Figure 1 An overall diagram of a locking mechanism according to an embodiment of the utility model is shown. Figure 2 FIG. 2 shows a partial view of a locking part of a locking mechanism according to an embodiment of the utility model, such as 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 plate 3 is provided with a first card slot 3-1, a second card slot 3-2, a third card slot 3-3, a limit 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 the through holes is larger than the diameter of the locking column 4, and the second fixing hole 3-5 is mainly used to cooperate with the fixing bolt 10 to fix the side plate 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 the 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 2As shown, the locking column 4 is provided with a through hole, and the clamping strip 5 passes through the through hole and is adaptively connected to the locking column 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. 2 shows a partial view of a locking mechanism pull ring according to an embodiment of the present utility model. 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 several times through the limit column 3-4 to smoothly enter 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 pull wire so that it moves in the desired direction; the setting of the slide groove is mainly for lubrication and protection to prevent the pull wire 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 the pull ring 11 is not subjected to external force, the pull wire 7 also does not apply tension to the locking column 4, and the locking column 4 approaches the first card 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 in 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 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, and the unlocking goal of the locking mechanism can be achieved.

[0092] Embodiment 2:

[0093] According to another embodiment of the present invention, a folding berth 13 is designed. Figure 4 The figure shows a front view of a folding berth according to an embodiment of the utility model when it is not unfolded. Figure 5 FIG. 2 shows a rear view of a folding berth according to an embodiment of the present invention when it is not unfolded. 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, an auxiliary locking plate 14, a baffle 15, a backrest 16, a lying plate 17, a frame 18, a protective net 19, a hook 20, a pulley 21, and a slide rail 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 lying board 15, the frame 18, the pulley 21, and the slide rail 22 combined together. This arrangement can ensure that after 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 board 17 are adaptively connected, and the backrest 16 can be turned around the lying board 17. The backrest 16 and the lying board 17 can be connected by a strong cloth strip, or by a hinge, or by other connection methods that do not affect the turning of the two.

[0098] Specifically, the lying board 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 board 17 from flying up and injuring the user due to emergency braking or the like;

[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 the traditional berth, it can provide a more comfortable riding experience. When the backrest is folded down, the width of the berth can be increased to provide 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 The figure shows a front view of a folding berth according to an embodiment of the utility model. Figure 7 The rear view of the folding berth according to one embodiment of the utility model is shown as follows: Figure 6 and Figure 7 As shown, when the folding berth 13 is ready to be unfolded, the user pulls the pull ring 11, the locking column 4 leaves the locking hole 2-1 to complete unlocking, and the user moves the frame 18 and releases the pull ring, and the locking column 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 column 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, and 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, the locking is completed 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, 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 a locking mechanism can effectively solve the problem of narrow berths. When the driver usually drives a truck, the rear berth is folded and takes up very little 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 resting area of ​​the berth and providing a larger resting 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 protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention are included in the protection scope 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 a through hole, and the diameter of the through hole is larger than the diameter of the locking column; The slide slot is adaptively fixed on the third slot.

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

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

4. The locking mechanism according to claim 1, characterized in that: 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.

5. The locking mechanism according to claim 1, characterized in that: When no external force is applied to the pull ring, the pull wire does not apply a pulling force 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 elastic force of the spring; When the locking strip 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, characterized in that: 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; 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 locking mechanism as described in any one of claims 1 to 6, an auxiliary locking plate, a baffle, a backrest, a lying board, a frame, a protective net, a hook, a pulley, and a slide rail; 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 lying board, the frame, the pulley and the slide rail combined together; The backrest is adaptively connected to the lying board, and the backrest can be flipped around the lying board; The lying board is adaptively connected above the frame; The slide rail is fixedly connected to the bottom plate of the cab, and the slide rail allows the pulley to roll freely inside the slide rail.

8. The folding berth as claimed in 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 limiting end.

9. The folding berth as claimed in claim 7, characterized in that: 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 and cannot move by the locking mechanism.

10. The folding berth as claimed in claim 7, characterized in that: When the folding berth is ready to be unfolded, the user pulls the pull ring, the locking column leaves the locking hole to complete unlocking, and the user moves the frame and releases the pull ring, and the locking column leaves the locking plate through the buffer channel; When the frame moves to the farthest position, the locking column passes through the buffer channel of the auxiliary locking plate and enters the locking hole in the auxiliary locking plate to complete locking, and then the user lays the backrest flat to complete the unfolding of the folding berth; When the user is ready to fold up 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, the locking is completed when the locking column passes through the buffer channel of the locking plate and returns to the locking hole on the locking plate, flip the backrest back to the top of the baffle to complete the folding of the folding berth.