Telescopic double-layer bed

Abstract

The utility model discloses a telescopic double-layer bed and belongs to the technical field of folding beds. Comprising a lower bed body, the lower bed body comprises a fixed lower berth and a telescopic lower berth, the bottom of the fixed lower berth is fixed to the ground, and the left end of the telescopic lower berth is telescopically connected with the right end of the fixed lower berth; the upper bed body is positioned above the lower bed body, the upper bed body comprises a fixed upper berth and a telescopic upper berth, the fixed upper berth corresponds to the upper part of the fixed lower berth, the left end of the fixed upper berth is fixed with the bedside wall body, and the left end of the telescopic upper berth is telescopically connected with the right end of the fixed upper berth; and the upper end of the bed body connecting bracket is fixedly connected with the right end of the telescopic upper berth, and the lower end of the bed body connecting bracket is fixedly connected with the right end of the telescopic lower berth. The telescopic bunk bed has the advantages that the telescopic bunk bed adopts the telescopic design, so that the resistance to be overcome by overturning the bed body is reduced, a user can easily push and pull the bunk bed to unfold and fold the bunk bed, and the operation is simple, convenient, labor-saving and safe.

Description

Technical Field

[0001] The utility model belongs to the technical field of folding beds, and particularly relates to a telescopic double-layer bed. Background Art

[0002] Double-decker beds with upper and lower bunk structures are generally used to save space. Under the same floor area, the utilization rate of double-decker beds is higher. Double-decker beds are mainly used in crowded places such as ships, vehicles, shelters, trains and even schools. Taking ships as an example, including civilian ships and military ships, civilian ships such as transport ships, roll-on / roll-off ships, barge carriers, etc. Since the space inside the cabin is very limited, placing the beds horizontally will reduce the utilization rate of the cabin, causing congestion in the narrow cabin and bringing inconvenience to the activities of personnel. Therefore, double-decker beds are a good choice, which can reduce the occupation of the activity space of personnel and improve the cleanliness of the rest place environment.

[0003] Currently, commercially available double-decker beds all adopt a fixed type, and the upper and lower bunks cannot be automatically retracted and deployed. For some compact spaces, keeping them unfolded when not in use is still a waste of space. Folding double-decker beds save the space occupied by the double-decker beds by folding them. For example, the "folding double-decker bed" introduced in the Chinese Utility Model Patent Authorization Publication No. CN201057894Y, the "a foldable double-decker bed" mentioned in the Chinese Utility Model Patent Authorization Publication No. CN205285699U, the Chinese Utility Model Patent "double-decker bed with wall fixation for rapid deployment and folding", etc. During the folding process of the above-mentioned folding double-decker beds, there are flipping actions, and flipping requires effort. Especially for some solid wood folding beds, flipping and folding are particularly strenuous, which limits the use for people with insufficient physical strength such as the elderly and children.

[0004] In view of the above existing technologies, it is necessary to improve the structure of the existing double-decker beds. Therefore, the applicant has made a beneficial design, and the technical solution to be introduced below is generated under this background. Content of the Utility Model

[0005] The purpose of the utility model is to provide a telescopic double-layer bed, which is convenient for folding and unfolding, and has a simple and stable structure.

[0006] The object of the present utility model is achieved as follows. A telescopic double-layer bunk bed includes a lower bed body. The lower bed body includes a fixed lower bunk and a telescopic lower bunk. The bottom of the fixed lower bunk is fixed to the ground, and the left end of the telescopic lower bunk is telescopically connected to the right end of the fixed lower bunk. An upper bed body is located above the lower bed body. The upper bed body includes a fixed upper bunk and a telescopic upper bunk. The fixed upper bunk corresponds to the upper part of the fixed lower bunk and the left end of the fixed upper bunk is fixed to the headboard wall body. The left end of the telescopic upper bunk is telescopically connected to the right end of the fixed upper bunk. A bed body connecting bracket, the upper end of the bed body connecting bracket is fixedly connected to the right end of the telescopic upper bunk, and the lower end is fixedly connected to the right end of the telescopic lower bunk.

[0007] In a specific embodiment of the present utility model, the fixed lower bunk includes a fixed lower bunk bed frame and a fixed lower bunk mattress. The fixed lower bunk mattress is arranged on the upward-facing side of the fixed lower bunk bed frame in the use state. The telescopic lower bunk includes a telescopic lower bunk bed frame and a telescopic lower bunk mattress. The telescopic lower bunk mattress is arranged on the upward-facing side of the telescopic lower bunk bed frame in the use state. The fixed upper bunk includes a fixed upper bunk bed frame and a fixed upper bunk mattress. The fixed upper bunk mattress is arranged on the upward-facing side of the fixed upper bunk bed frame in the use state. The telescopic upper bunk includes a telescopic upper bunk bed frame and a telescopic upper bunk mattress. The telescopic upper bunk mattress is arranged on the upward-facing side of the telescopic upper bunk bed frame in the use state. A fixed upper bunk mounting bracket for fixing to the headboard wall body is fixed to the left end face of the fixed upper bunk bed frame.

[0008] In another specific embodiment of the present utility model, it further includes a bed body column. The top end of the bed body column is fixed to the bed top wall body. The upper middle part of the bed body column is fixed to the right rear end of the fixed upper bunk bed frame, and the lower middle part is fixed to the right rear end of the fixed lower bunk bed frame. The bottom end of the bed body column is fixed to the ground.

[0009] In yet another specific embodiment of the present utility model, it further includes an upper bunk hanging rod. The bottom end of the upper bunk hanging rod is fixed to the right front end of the fixed upper bunk bed frame, and the top end is fixed to the bed top wall body.

[0010] In still another specific embodiment of the present utility model, an upper bunk handrail is provided on the fixed upper bunk. The upper bunk handrail is connected and fixed to the front side of the fixed upper bunk bed frame and the upper bunk hanging rod.

[0011] In still another specific embodiment of the present utility model, the bed body connecting bracket forms a ladder in the height direction.

[0012] In a further specific embodiment of the present utility model, the fixed lower bunk bed frame includes fixed lower bunk side border sleeves, fixed lower bunk longitudinal support sleeves, a fixed lower bunk left border, and a fixed lower bunk middle rod. The left ends of a pair of fixed lower bunk side border sleeves and several fixed lower bunk longitudinal support sleeves are respectively fixedly connected to the fixed lower bunk left border. The right ends of a pair of fixed lower bunk side border sleeves and several fixed lower bunk longitudinal support sleeves are respectively fixedly connected to the fixed lower bunk middle rod and pass through the fixed lower bunk middle rod to the right. The telescopic lower bunk bed frame includes telescopic lower bunk side border telescopic rods, telescopic lower bunk longitudinal support telescopic rods, and a telescopic lower bunk right border. The right ends of a pair of telescopic lower bunk side border telescopic rods and several telescopic lower bunk longitudinal support telescopic rods are respectively fixedly connected to the telescopic lower bunk right border. The left ends of a pair of telescopic lower bunk side border telescopic rods and several telescopic lower bunk longitudinal support telescopic rods are respectively telescopically connected to a pair of fixed lower bunk side border sleeves and several fixed lower bunk longitudinal support sleeves. The fixed upper bunk bed frame includes fixed upper bunk side border sleeves, fixed upper bunk longitudinal support sleeves, and a fixed upper bunk middle rod. The left ends of a pair of fixed upper bunk side border sleeves and several fixed upper bunk longitudinal support sleeves are respectively fixedly connected to the fixed upper bunk mounting frame. The right ends of a pair of fixed upper bunk side border sleeves and several fixed upper bunk longitudinal support sleeves are respectively fixedly connected to the fixed upper bunk middle rod and pass through the fixed upper bunk middle rod to the right. The telescopic upper bunk bed frame includes telescopic upper bunk side border telescopic rods, telescopic upper bunk longitudinal support telescopic rods, and a telescopic upper bunk right border. The right ends of a pair of telescopic upper bunk side border telescopic rods and several telescopic upper bunk longitudinal support telescopic rods are respectively fixedly connected to the telescopic upper bunk right border. The left ends of a pair of telescopic upper bunk side border telescopic rods and several telescopic upper bunk longitudinal support telescopic rods are respectively telescopically connected to a pair of fixed upper bunk side border sleeves and several fixed upper bunk longitudinal support sleeves.

[0013] In a still further specific embodiment of the present utility model, a pair of fixed legs are respectively provided at the left end and the right end of the bottom of the fixed lower bunk, and a pair of movable legs are provided at the right end of the telescopic lower bunk.

[0014] In a yet further specific embodiment of the present utility model, the movable legs include a connecting seat and a hinge. The connecting seat is fixedly installed on the telescopic lower bunk bed frame. One end of the hinge is connected to the connecting seat, and the other end is connected to the movable legs.

[0015] In yet another specific embodiment of the present utility model, the telescopic lower bunk side frame telescopic rod is provided with a lower bunk folding locking hole at the right end and a lower bunk unfolding locking hole at the left end. The fixed lower bunk side frame sleeve is provided with a lower bunk pin hole at the right end. When the lower bed body is in the contracted state, the lower bunk pin sequentially passes through the lower bunk pin hole and the lower bunk folding locking hole to lock the lower bed body. When the lower bed body is in the unfolded state, the lower bunk pin sequentially passes through the lower bunk pin hole and the lower bunk unfolding locking hole to lock the lower bed body. The telescopic upper bunk side frame telescopic rod is provided with an upper bunk folding locking hole at the right end and an upper bunk unfolding locking hole at the left end. The fixed upper bunk side frame sleeve is provided with an upper bunk pin hole at the right end. When the upper bed body is in the contracted state, the upper bunk pin sequentially passes through the upper bunk pin hole and the upper bunk folding locking hole to lock the upper bed body. When the upper bed body is in the unfolded state, the upper bunk pin sequentially passes through the upper bunk pin hole and the upper bunk unfolding locking hole to lock the upper bed body.

[0016] Due to the adoption of the above structure, compared with the prior art, the present utility model has the following beneficial effects: The telescopic design of the upper and lower bunks reduces the resistance that needs to be overcome when flipping the bed body. The user can easily push and pull the bed to unfold and retract it, and the operation is simple, convenient, labor-saving, and safe. It can expand the activity space of the rest area by folding the upper and lower bunks separately as needed in the non-rest state, showing a good tidy effect. Due to the provision of the upper bunk handrail and locking pin, it can ensure safety and good stability respectively, meeting the usage requirements in various environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a schematic diagram of the structure of the bed frame of the present utility model in the unfolded state;

[0019] Figure 3 is a schematic diagram of the structure of the bed frame of the present utility model in the contracted state

[0020] Figure 4 is a schematic diagram of the structure of the movable support leg of the present utility model.

[0021] In the figure: 1. Lower bed body, 11. Fixed lower bunk, 111. Fixed lower bunk bed frame, 1111. Fixed lower bunk side frame sleeve, 11111. Lower bunk pin hole, 1112. Fixed lower bunk longitudinal support sleeve, 1113. Fixed lower bunk left frame, 1114. Fixed lower bunk middle pole, 112. Fixed lower bunk mattress, 113. Fixed support leg, 114. Lower bunk lock pin, 12. Telescopic lower bunk, 121. Telescopic lower bunk bed frame, 1211. Telescopic lower bunk side frame telescopic rod, 12111. Lower bunk folding lock hole, 1212. Telescopic lower bunk longitudinal support telescopic rod, 1213. Telescopic lower bunk right frame, 122. Telescopic lower bunk mattress, 123. Movable support leg, 1231. Connecting seat, 1232. Hinge; 2. Upper bed body, 21. Fixed upper bunk, 211. Fixed upper bunk bed frame, 2111. Fixed upper bunk side frame sleeve, 21111. Upper bunk pin hole, 2112. Fixed upper bunk longitudinal support sleeve, 2113. Fixed upper bunk middle pole, 212. Fixed upper bunk mattress, 213. Fixed upper bunk mounting bracket, 214. Upper bunk handrail, 215. Upper bunk lock pin, 22. Telescopic upper bunk, 221. Telescopic upper bunk bed frame, 2211. Telescopic upper bunk side frame telescopic rod, 22111. Upper bunk folding lock hole, 2212. Telescopic upper bunk longitudinal support telescopic rod, 2213. Telescopic upper bunk right frame, 222. Telescopic upper bunk mattress; 3. Bed body connection bracket, 31. Ladder; 4. Bed body column; 5. Upper bunk hanging rod; 6. Slide rail. Detailed implementation manners

[0022] The following combines the attached drawings to describe in detail the specific implementation manners of the present utility model. However, the description of the embodiments is not a limitation of the technical solution. Any change in form rather than substance based on the concept of the present utility model should be regarded as the protection scope of the present utility model.

[0023] In the following description, any concepts related to directions (or orientations) such as up, down, left, right, front, and back are in reference to the position state of the figure being described, aiming to facilitate public understanding. Therefore, it cannot be understood as a special limitation of the technical solution provided by the present utility model.

[0024] See Figure 1, the present utility model relates to a telescopic double-deck bed, which is described by taking the application in a cabin as an example. The telescopic double-deck bed includes a lower bed body 1. The lower bed body 1 includes a fixed lower bunk 11 and a telescopic lower bunk 12. The bottom of the fixed lower bunk 11 is fixed to the cabin floor, and the left end of the telescopic lower bunk 12 is telescopically connected to the right end of the fixed lower bunk 11; an upper bed body 2, the upper bed body 2 is located above the lower bed body 1. The upper bed body 2 includes a fixed upper bunk 21 and a telescopic upper bunk 22. The fixed upper bunk 21 corresponds to the upper part of the fixed lower bunk 11 and the left end of the fixed upper bunk 21 is fixed to the side wall of the cabin at the head of the bed. The left end of the telescopic upper bunk 22 is telescopically connected to the right end of the fixed upper bunk 21; a bed body connection bracket 3, the upper end of the bed body connection bracket 3 is fixedly connected to the right end of the telescopic upper bunk 22, and the lower end is fixedly connected to the right end of the telescopic lower bunk 12. The bed body connection bracket 3 is provided with a ladder 31 in the height direction. The ladder 31 has an anti-slip design, which is convenient for climbing barefoot.

[0025] The fixed lower bunk 11 includes a fixed lower bunk bed frame 111 and a fixed lower bunk mattress 112. The fixed lower bunk mattress 112 is arranged on the upward side of the fixed lower bunk bed frame 111 in the use state. The telescopic lower bunk 12 includes a telescopic lower bunk bed frame 121 and a telescopic lower bunk mattress 122. The telescopic lower bunk mattress 122 is arranged on the upward side of the telescopic lower bunk bed frame 121 in the use state. The fixed upper bunk 21 includes a fixed upper bunk bed frame 211 and a fixed upper bunk mattress 212. The fixed upper bunk mattress 212 is arranged on the upward side of the fixed upper bunk bed frame 211 in the use state. The telescopic upper bunk 22 includes a telescopic upper bunk bed frame 221 and a telescopic upper bunk mattress 222. The telescopic upper bunk mattress 222 is arranged on the upward side of the telescopic upper bunk bed frame 221 in the use state. A fixed upper bunk mounting frame 213 for fixing to the head wall is fixed to the left end face of the fixed upper bunk bed frame 211. Each bed frame is made of aluminum alloy material, and each mattress is made of flame-retardant and environmentally friendly material.

[0026] See Figure 2 and Figure 3, specifically, the fixed lower bunk bed frame 111 includes a fixed lower bunk side border sleeve 1111, a fixed lower bunk longitudinal support sleeve 1112, a fixed lower bunk left border 1113, and a fixed lower bunk middle pole 1114. The left ends of a pair of fixed lower bunk side border sleeves 1111 and several fixed lower bunk longitudinal support sleeves 1112 are respectively fixedly connected to the fixed lower bunk left border 1113. The right ends of a pair of fixed lower bunk side border sleeves 1111 and several fixed lower bunk longitudinal support sleeves 1112 are respectively fixedly connected to the fixed lower bunk middle pole 1114 and pass through the fixed lower bunk middle pole 1114 to the right. The retractable lower bunk bed frame 121 includes a retractable lower bunk side border telescopic rod 1211, a retractable lower bunk longitudinal support telescopic rod 1212, and a retractable lower bunk right border 1213. The right ends of a pair of retractable lower bunk side border telescopic rods 1211 and several retractable lower bunk longitudinal support telescopic rods 1212 are respectively fixedly connected to the retractable lower bunk right border 1213. The left ends of a pair of retractable lower bunk side border telescopic rods 1211 and several retractable lower bunk longitudinal support telescopic rods 1212 are respectively telescopically connected to a pair of fixed lower bunk side border sleeves 1111 and several fixed lower bunk longitudinal support sleeves 1112. The fixed upper bunk bed frame 211 includes a fixed upper bunk side border sleeve 2111, a fixed upper bunk longitudinal support sleeve 2112, and a fixed upper bunk middle pole 2113. The left ends of a pair of fixed upper bunk side border sleeves 2111 and several fixed upper bunk longitudinal support sleeves 2112 are respectively fixedly connected to the fixed upper bunk mounting frame 213. The right ends of a pair of fixed upper bunk side border sleeves 2111 and several fixed upper bunk longitudinal support sleeves 2112 are respectively fixedly connected to the fixed upper bunk middle pole 2113 and pass through the fixed upper bunk middle pole 2113 to the right. The retractable upper bunk bed frame 221 includes a retractable upper bunk side border telescopic rod 2211, a retractable upper bunk longitudinal support telescopic rod 2212, and a retractable upper bunk right border 2213. The right ends of a pair of retractable upper bunk side border telescopic rods 2211 and several retractable upper bunk longitudinal support telescopic rods 2212 are respectively fixedly connected to the retractable upper bunk right border 2213. The left ends of a pair of retractable upper bunk side border telescopic rods 2211 and several retractable upper bunk longitudinal support telescopic rods 2212 are respectively telescopically connected to a pair of fixed upper bunk side border sleeves 2111 and several fixed upper bunk longitudinal support sleeves 2112. Pull out the retractable lower bunk bed frame 121 and the retractable upper bunk bed frame 221 outward to expand the lower bed body 1 and the upper bed body 2 into a complete bed. When retraction is needed, just push the retractable lower bunk bed frame 121 and the retractable upper bunk bed frame 221 towards the fixed lower bunk bed frame 111 and the fixed upper bunk bed frame 211 respectively. The operation is light and simple.

[0027] Further, the telescopic lower bunk side border telescopic rod 1211 is provided with a lower bunk folding locking hole 12111 at the right end, and a lower bunk unfolding locking hole (not shown) is provided at the left end. The fixed lower bunk side border sleeve 1111 is provided with a lower bunk pin hole 11111 at the right end. When the lower bed body 1 is in the contracted state, the lower bunk pin 114 passes through the lower bunk pin hole 11111 and the lower bunk folding locking hole 12111 in sequence to lock the lower bed body 1; when the lower bed body 1 is in the unfolded state, the lower bunk pin 114 passes through the lower bunk pin hole 11111 and the lower bunk unfolding locking hole in sequence to lock the lower bed body 1. The telescopic upper bunk side border telescopic rod 2211 is provided with an upper bunk folding locking hole 22111 at the right end, and an upper bunk unfolding locking hole (not shown) is provided at the left end. The fixed upper bunk side border sleeve 2111 is provided with an upper bunk pin hole 21111 at the right end. When the upper bed body 2 is in the contracted state, the upper bunk pin 215 passes through the upper bunk pin hole 21111 and the upper bunk folding locking hole 22111 in sequence to lock the upper bed body 2. When the upper bed body 2 is in the unfolded state, the upper bunk pin 215 passes through the upper bunk pin hole 21111 and the upper bunk unfolding locking hole in sequence to lock the upper bed body 2. Thereby, the stability of the double-layer bunk bed during use is increased, and it can prevent accidental unfolding after being retracted.

[0028] Continue to see Figure 1 and Figure 2 , further, the present utility model further includes a bed body column 4 and an upper bunk hanging rod 5. The upper bed body 2 forms a firm structure through the bed body column 4 and the upper bunk hanging rod 5. The top end of the bed body column 4 is fixed to the top wall of the cabin, the upper middle part of the bed body column 4 is fixed to the right rear side of the fixed upper bunk bed frame 211, the lower middle part is fixed to the right rear side of the fixed lower bunk bed frame 111, and the bottom end of the bed body column 4 is fixed to the cabin floor. The bottom end of the upper bunk hanging rod 5 is fixed to the right front side of the fixed upper bunk bed frame 211, and the top end is fixed to the top wall body of the cabin. The fixed upper bunk 21 further has an upper bunk handrail 214. The upper bunk handrail 214 is connected and fixed to the front side of the fixed upper bunk bed frame 211 and the upper bunk hanging rod 5 to ensure the safety of the crew lying on the upper bed body 2. The upper bunk handrail 214 can be erected or laid down by squeezing a switch, and the principle belongs to well-known technology and will not be elaborated here.

[0029] See Figure 1 and Figure 4, Further, a pair of fixed legs 113 are provided at the left end and the right end of the bottom of the fixed lower bunk 11, and the fixed legs 113 are installed on the slide rail 6 on the ground of the cabin. A pair of movable legs 123 are provided at the right end of the telescopic lower bunk 12. Specifically, the movable leg 123 includes a connecting seat 1231 and a hinge 1232. The connecting seat 1231 is fixedly installed with the telescopic lower bunk bed frame 121. One end of the hinge 1232 is connected to the connecting seat 1231, and the other end is connected to the movable leg 123. By folding the movable leg 123, it can be erected downward to support on the ground and automatically locked, or folded upward to the bottom of the telescopic lower bunk bed frame 121.

Claims

1. A telescopic bunk bed, characterized in that: The invention comprises a lower bed body (1), wherein the lower bed body (1) comprises a fixed lower bunk (11) and a telescopic lower bunk (12), wherein the bottom of the fixed lower bunk (11) is fixed to the ground, and the left end of the telescopic lower bunk (12) is telescopically connected to the right end of the fixed lower bunk (11); an upper bed body (2), wherein the upper bed body (2) is located above the lower bed body (1), and the upper bed body (2) comprises a fixed upper bunk (21) and a telescopic upper bunk (22), wherein the fixed upper bunk (21) corresponds to the top of the fixed lower bunk (11) and the left end of the fixed upper bunk (21) is fixed to the headboard wall, and the left end of the telescopic upper bunk (22) is telescopically connected to the right end of the fixed upper bunk (21); and a bed body connecting bracket (3), wherein the upper end of the bed body connecting bracket (3) is fixedly connected to the right end of the telescopic upper bunk (22), and the lower end is fixedly connected to the right end of the telescopic lower bunk (12).

2. A telescopic bunk bed according to claim 1, characterized in that: The fixed lower bunk (11) comprises a fixed lower bunk bed frame (111) and a fixed lower bunk mattress (112), wherein the fixed lower bunk mattress (112) is arranged on the side of the fixed lower bunk bed frame (111) facing upward when in use; the telescopic lower bunk (12) comprises a telescopic lower bunk bed frame (121) and a telescopic lower bunk mattress (122), wherein the telescopic lower bunk mattress (122) is arranged on the side of the telescopic lower bunk bed frame (121) facing upward when in use; the fixed upper bunk (21) comprises a fixed upper bunk bed frame (21 1) and a fixed upper bunk mattress (212), the fixed upper bunk mattress (212) being arranged on the side of the fixed upper bunk bed frame (211) facing upwards when in use, the telescopic upper bunk (22) comprising a telescopic upper bunk bed frame (221) and a telescopic upper bunk mattress (222), the telescopic upper bunk mattress (222) being arranged on the side of the telescopic upper bunk bed frame (221) facing upwards when in use, and a fixed upper bunk mounting frame (213) for fixing to a bed head wall being fixed on the left end face of the fixed upper bunk bed frame (211).

3. The telescopic bunk bed according to claim 2, characterized in that: It also includes a bed column (4), the top of which is fixed to the top wall of the bed, the upper middle part of which is fixed to the rear right end of the fixed upper bunk bed frame (211), the lower middle part of which is fixed to the rear right end of the fixed lower bunk bed frame (111), and the bottom end of the bed column (4) is fixed to the ground.

4. The telescopic bunk bed according to claim 2, characterized in that: It also comprises an upper bunk hanging rod (5), the bottom end of the upper bunk hanging rod (5) is fixed to the front right end of the fixed upper bunk bed frame (211), and the top end is fixed to the bed top wall.

5. The telescopic bunk bed according to claim 4, characterized in that: The fixed upper bunk (21) is provided with an upper bunk handrail (214), and the upper bunk handrail (214) is connected and fixed to the front side of the fixed upper bunk bed frame (211) and the upper bunk suspension rod (5).

6. The telescopic bunk bed according to claim 1, characterized in that: The bed body connecting bracket (3) is provided with a ladder (31) in the height direction.

7. The telescopic bunk bed according to claim 2, characterized in that: The fixed lower bunk bed frame (111) comprises a fixed lower bunk side frame sleeve (1111), a fixed lower bunk longitudinal support sleeve (1112), a fixed lower bunk left frame (1113) and a fixed lower bunk middle rod (1114); the left ends of a pair of fixed lower bunk side frame sleeves (1111) and a plurality of fixed lower bunk longitudinal support sleeves (1112) are respectively fixedly connected to the fixed lower bunk left frame (1113); the right ends of a pair of fixed lower bunk side frame sleeves (1111) and a plurality of fixed lower bunk longitudinal support sleeves (1112) are respectively fixedly connected to the fixed lower bunk middle rod (1114) and pass through the fixed lower bunk middle rod (1114) to the right. 14), the telescopic lower bunk bed frame (121) comprises a telescopic lower bunk side frame telescopic rod (1211), a telescopic lower bunk longitudinal support telescopic rod (1212) and a telescopic lower bunk right side frame (1213), the right ends of a pair of telescopic lower bunk side frame telescopic rods (1211) and a plurality of telescopic lower bunk longitudinal support telescopic rods (1212) are respectively fixedly connected to the telescopic lower bunk right side frame (1213), and the left ends of a pair of telescopic lower bunk side frame telescopic rods (1211) and a plurality of telescopic lower bunk longitudinal support telescopic rods (1212) are respectively fixedly connected to a pair of fixed lower bunk side frame sleeves (1111) and a plurality of fixed lower bunk longitudinal support sleeves (1112) ) telescopic connection; the fixed upper bunk bed frame (211) comprises a fixed upper bunk side frame sleeve (2111), a fixed upper bunk longitudinal support sleeve (2112) and a fixed upper bunk middle rod (2113); the left ends of a pair of fixed upper bunk side frame sleeves (2111) and a plurality of fixed upper bunk longitudinal support sleeves (2112) are respectively fixedly connected to the fixed upper bunk mounting frame (213); the right ends of a pair of fixed upper bunk side frame sleeves (2111) and a plurality of fixed upper bunk longitudinal support sleeves (2112) are respectively fixedly connected to the fixed upper bunk middle rod (2113) and pass through the fixed upper bunk middle rod (2113) to the right; the The telescopic upper bunk bed frame (221) comprises a telescopic upper bunk side frame telescopic rod (2211), a telescopic upper bunk longitudinal support telescopic rod (2212) and a telescopic upper bunk right side frame (2213); the right ends of a pair of telescopic upper bunk side frame telescopic rods (2211) and a plurality of telescopic upper bunk longitudinal support telescopic rods (2212) are respectively fixedly connected to the telescopic upper bunk right side frame (2213); and the left ends of a pair of telescopic upper bunk side frame telescopic rods (2211) and a plurality of telescopic upper bunk longitudinal support telescopic rods (2212) are respectively telescopically connected to a pair of fixed upper bunk side frame sleeves (2111) and a plurality of fixed upper bunk longitudinal support sleeves (2112).

8. The telescopic bunk bed according to claim 2, characterized in that: The fixed lower bunk (11) is provided with a pair of fixed legs (113) at the left and right ends of the bottom, respectively, and the telescopic lower bunk (12) is provided with a pair of movable legs (123) at the right end.

9. The telescopic bunk bed according to claim 8, characterized in that: The movable supporting leg (123) comprises a connecting seat (1231) and a hinge (1232); the connecting seat (1231) is fixedly mounted on the telescopic lower bunk frame (121); one end of the hinge (1232) is connected to the connecting seat (1231), and the other end is connected to the movable supporting leg (123).

10. The telescopic bunk bed according to claim 7, characterized in that: The telescopic lower bunk side frame telescopic rod (1211) is provided with a lower bunk folding locking hole (12111) at the right end and a lower bunk unfolding locking hole at the left end; the fixed lower bunk side frame sleeve (1111) is provided with a lower bunk latch hole (11111) at the right end; when the lower bed (1) is in a retracted state, the lower bunk latch (114) sequentially passes through the lower bunk latch hole (11111) and the lower bunk folding locking hole (12111) to lock the lower bed (1); when the lower bed (1) is in an unfolded state, the lower bunk latch (114) sequentially passes through the lower bunk latch hole (11111) and the lower bunk unfolding locking hole to lock the lower bed (1); The telescopic upper bunk side frame telescopic rod (2211) is provided with an upper bunk folding locking hole (22111) at the right end and an upper bunk unfolding locking hole at the left end; the fixed upper bunk side frame sleeve (2111) is provided with an upper bunk latch hole (21111) at the right end; when the upper bed body (2) is in a retracted state, the upper bunk latch (215) sequentially passes through the upper bunk latch hole (21111) and the upper bunk folding locking hole (22111) to lock the upper bed body (2); when the upper bed body (2) is in an unfolded state, the upper bunk latch (215) sequentially passes through the upper bunk latch hole (21111) and the upper bunk unfolding locking hole to lock the upper bed body (2).

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