Adjustable push-pull bed

Abstract

The utility model provides an adjustable push-and-pull bed, which relates to the technical field of push-and-pull beds, and comprises a plurality of first support legs, second support legs and a plurality of bed battens, the sides, close to each other, of the two first support legs are connected with a first frame rod through bolts, and one side of the first frame rod is provided with a plurality of positioning holes; the sides, close to each other, of the two first supporting legs are fixedly connected with first frame rods through bolts, mortise and tenon assemblies are arranged at one ends of the bed battens, and the four first supporting legs, the two first frame rods, the two first frame rods and the multiple bed battens form a movable bed frame; according to the push-and-pull bed, the bed battens on the outer surfaces of the movable bed frame and the fixed bed frame are arranged in an exposed and symmetrical embedded mode, traditional inner sleeving and sliding rails are omitted, the practicability and the structural strength of the push-and-pull bed in the using process are improved, the bed battens are connected with the first frame rods or the second frame rods through mortise and tenon structures, and therefore the bed battens can be conveniently disassembled and assembled; and the bed battens are not easy to shake and fall off after being mounted.

Description

Technical Field

[0001] The utility model relates to the technical field of push-pull beds, in particular to an adjustable push-pull bed. Background Art

[0002] A push-pull bed is a bed with a push-pull function. It can expand or contract the bed body through simple operations to meet different usage requirements. A push-pull bed is usually divided into two parts. When the two parts are integrated, it forms a small bed, and when half of it is pulled apart, it can be used as a large bed.

[0003] For traditional push-pull beds, the two bed frames usually adopt a track and inner sleeve type. When expanding the bed frame, one half of the bed frame is pulled to make the slats of the moving bed frame move inside the slats of the fixed bed frame or within the track. However, after the bed frame is expanded, the inner sleeve type slats make the inside of the slats of the fixed bed frame hollow, resulting in a significant decrease in load-bearing capacity. The slats on the track are prone to being unable to be dragged normally due to rust inside the track during long-term use. Moreover, traditional push-pull beds can only fully expand or contract the bed board, which is inconvenient for adjustment, leading to the problems of low flexibility and practicability when using the push-pull bed. Summary of the Utility Model

[0004] The purpose of the present utility model is to propose an adjustable push-pull bed to solve the problems that the inner sleeve type slats make the inside of the slats of the fixed bed frame hollow, resulting in a significant decrease in load-bearing capacity, the slats on the track are prone to being unable to be dragged normally due to rust inside the track during long-term use, and traditional push-pull beds can only fully expand or contract the bed board, which is inconvenient for adjustment, leading to the problems of low flexibility and practicability when using the push-pull bed.

[0005] To achieve the above object, the utility model adopts the following technical solutions: an adjustable push-pull bed, comprising a plurality of first legs, second legs and a plurality of bed slats. On one side of the two first legs close to each other, a first frame rod is connected by bolts. At the bottom end of the first frame rod, two sets of moving wheels are provided. On one side of the first frame rod, a plurality of positioning holes are formed. On one side of the two first legs close to each other, a first support rod is fixedly connected by bolts. One end of the bed slat is provided with a mortise and tenon assembly. The four first legs, the two first frame rods and the two first support rods and the plurality of bed slats form a movable bed frame. The two ends of the bed slat are respectively connected to the two first support rods of the movable bed frame by bolts and the mortise and tenon assembly. On one side of the two second legs close to each other, a second frame rod is connected by bolts. On one side of the second frame rod, a positioning bolt is threadedly connected. On one side of the two second legs close to each other, a second support rod is fixedly connected by bolts. The four second legs, the two second frame rods and the two second support rods and the plurality of bed slats form a fixed bed frame. The two ends of the bed slat are respectively connected to the two second support rods of the fixed bed frame by bolts and the mortise and tenon assembly. A plurality of bed slats on the outer surface of the fixed bed frame are placed on the top ends of the first support rods on one side of the movable bed frame. A plurality of bed slats on the outer surface of the movable bed frame are placed on the top ends of the second support rods on one side of the fixed bed frame. The length of the first support rod is slightly less than the length of the second support rod. The bed slats on the outer surface of the movable bed frame and the bed slats on the outer surface of the fixed bed frame are mutually engaged.

[0006] The effects achieved by the above components are as follows: When installing the push-pull bed, attach the two ends of a first frame rod to the two sides of two first legs respectively, connect the first frame rod to the two first legs using bolts, then connect one end of two first support rods to the tops of the two first legs after connection using bolts. Subsequently, use bolts to connect the two first legs to the two ends of a first frame rod, and then connect the tops of the connected first legs to the unconnected ends of the two first support rods using bolts. At the tops of the two first support rods, fix several bed slats using bolts and mortise and tenon components to form a movable bed frame. Then, attach the two ends of a second frame rod to the two sides of two second legs respectively, connect the second frame rod to the two second legs using bolts, and then connect one end of two second support rods to the tops of the two second legs after connection using bolts. Subsequently, use bolts to connect the two second legs to the two ends of a second frame rod, and then connect the tops of the connected second legs to the unconnected ends of the two second support rods using bolts. At the tops of the two second support rods, fix several bed slats using bolts and mortise and tenon components to form a fixed bed frame. Push the movable bed frame to move horizontally and insert it into the interior of the fixed bed frame to combine the movable bed frame and the fixed bed frame. When in use, pull the movable bed frame and move it through the moving wheels at the bottom of the first frame rod to unfold the movable bed frame. Rotate the positioning bolt on the outer surface of the second frame rod so that one end of the positioning bolt inserts into the positioning hole on the outer surface of the first frame rod to fix the relative positions of the movable bed frame and the fixed bed frame.

[0007] Preferably, the mortise and tenon component includes an insertion piece. A bayonet is provided at the bottom end of the insertion piece. A number of card slots are provided on the outer surfaces of the first support rod and the second support rod. A convex block is fixedly connected to the inner wall of the card slot. Two rectangular holes are provided at one end of the bed slat.

[0008] The effects achieved by the above components are as follows: When installing the bed slats, place the two ends of the bed slats on the tops of two first support rods or two second support rods respectively. Connect one end to the outer surface of the first support rod or the second support rod using bolts, and insert the other end into the card slot on the outer surface of the first support rod or the second support rod. Then move the bed slat horizontally so that the rectangular hole at one end of the bed slat is inserted on the outer surface of the convex block inside the card slot. Subsequently, insert an insertion piece into the card slot so that the bayonet at the bottom end of the insertion piece engages with the bottom end inner wall of the card slot to fix the position of one end of the bed slat inside the card slot.

[0009] Preferably, a support device is provided on the outer surface of the second leg. The support device includes a rectangular block. One side of the rectangular block is fixedly connected to one side of the second leg. A screw rod is threadedly connected to the inner wall of the rectangular block. The bottom end of the screw rod is rotatably connected to an L-shaped block. One side of the L-shaped block slides on one side of the second leg.

[0010] The effect achieved by the above components is: by setting up the supporting device, when using the push-pull bed, if the ground is uneven or the connection structure of the fixed bed frame is loose, resulting in the second legs at the four corners of the fixed bed frame being skewed, the screw can be rotated at the second legs of different heights to control the screw to move downward on the inner wall of the rectangular block so that one side of the L-shaped block slides downward on one side of the second leg, and the bottom end of the L-shaped block is pressed against the ground to support the second leg, so that the push-pull bed as a whole remains balanced.

[0011] Preferably, one end of the L-shaped block is fixedly connected to a stopper, and the stopper is made of sponge material.

[0012] The effect achieved by the above components is: by setting a sponge block, the end of the L-shaped block away from the second leg can be blocked and protected, thereby preventing people's limbs from directly hitting one end of the L-shaped block and being injured as much as possible.

[0013] Preferably, the top end of the screw is fixedly connected to a round block, and the top end of the round block is rotatably connected to a round rod.

[0014] The effect achieved by the above components is that by holding the outer surface of the round rod, it is more convenient to push the round block to control the rotation of the screw to adjust the height position of the L-shaped block.

[0015] Preferably, a positioning rod is fixedly connected to the top end of the L-shaped block, and the outer surface of the positioning rod slides on the inner wall of the rectangular block.

[0016] The effect achieved by the above components is: when the screw is rotated to control the L-shaped block to move up and down, the positioning rod will slide on the inner wall of the rectangular block, further limiting the angle between the L-shaped block and the rectangular block, and avoiding shaking of the L-shaped block when moving as much as possible.

[0017] Preferably, a slot is provided at one end of the L-shaped block, an insertion rod is slidably inserted into the inner wall of the slot, and a rubber block is fixedly connected to the bottom end of the insertion rod.

[0018] The effect achieved by the above components is: after the push-pull bed is installed, a rod can be inserted into the slot on one side of each L-shaped block, and the rubber block on the side of the rod can be installed at the bottom end of the L-shaped block. The rubber block can increase the friction when the bottom end of the L-shaped block contacts the ground, making it difficult for the L-shaped block to slide when supporting the second leg.

[0019] Preferably, two auxiliary grooves are provided on one side of the insertion rod, and the inner walls of the two auxiliary grooves are connected.

[0020] The effect achieved by the above components is that by hooking the auxiliary groove at one end of the insertion rod with one hand, the insertion rod can be pulled out from the inside of the slot more conveniently to replace the rubber block.

[0021] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0022] In the present utility model, by arranging the slats on the outer surfaces of the movable bed frame and the fixed bed frame in an exposed symmetrically fitted manner, the traditional inner sleeve type and slide rails are cancelled, improving the practicality and structural strength during the use of the push-pull bed. The slats are connected to the first frame rod or the second frame rod through a mortise and tenon structure, facilitating the disassembly and assembly of the slats and preventing the slats from shaking and falling after installation. Description of the Drawings

[0023] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0024] Figure 2 is a three-dimensional structural schematic diagram at the first leg of the present utility model;

[0025] Figure 3 is a three-dimensional structural schematic diagram at the second frame rod of the present utility model;

[0026] Figure 4 is the present utility model Figure 3 partial enlarged three-dimensional structural schematic diagram at A;

[0027] Figure 5 is a three-dimensional structural schematic diagram at the slats of the present utility model;

[0028] Figure 6 is a three-dimensional structural schematic diagram at the inserts of the present utility model;

[0029] Figure 7 is a three-dimensional structural schematic diagram at the L-shaped blocks of the present utility model;

[0030] Figure 8 is a three-dimensional structural schematic diagram at the rubber blocks of the present utility model.

[0031] Legend: 1. First leg; 2. Mortise and tenon assembly; 3. Support device; 4. First frame bar; 5. First frame rod; 6. Positioning hole; 7. Second leg; 8. Second frame bar; 9. Second frame rod; 10. Slat; 11. Positioning bolt; 21. Card slot; 22. Convex block; 23. Rectangular hole; 24. Insert; 25. Bayonet; 31. Rectangular block; 32. Screw rod; 33. L-shaped block; 34. Stopper; 35. Round block; 36. Round rod; 37. Positioning rod; 38. Slot; 39. Insert rod; 310. Rubber block; 311. Auxiliary groove. Detailed Embodiment

[0032] Embodiment 1, as Figures 1-3As shown in the figure, the adjustable push-pull bed includes several first legs 1, second legs 7 and several slats 10. On one side of the two mutually approaching first legs 1, a first frame rod 4 is connected by bolts. At the bottom end of the first frame rod 4, two sets of moving wheels are provided. On one side of the first frame rod 4, several positioning holes 6 are opened. On one side of the two mutually approaching first legs 1, a first support rod 5 is fixedly connected by bolts. At one end of the slat 10, a mortise and tenon assembly 2 is provided. The four first legs 1, the two first frame rods 4 and the two first support rods 5 and the several slats 10 form a movable bed frame. The two ends of the slat 10 are respectively connected to the two first support rods 5 of the movable bed frame by bolts and the mortise and tenon assembly 2. On one side of the two mutually approaching second legs 7, a second frame rod 8 is connected by bolts. On one side of the second frame rod 8, a positioning bolt 11 is threadedly connected. On one side of the two mutually approaching second legs 7, a second support rod 9 is fixedly connected by bolts. The four second legs 7, the two second frame rods 8 and the two second support rods 9 and the several slats 10 form a fixed bed frame. The two ends of the slat 10 are respectively connected to the two second support rods 9 of the fixed bed frame by bolts and the mortise and tenon assembly 2. Several slats 10 on the outer surface of the fixed bed frame are placed on the top of the first support rod 5 on one side of the movable bed frame. Several slats 10 on the outer surface of the movable bed frame are placed on the top of the second support rod 9 on one side of the fixed bed frame. The length of the first support rod 5 is slightly less than the length of the second support rod 9. The slats 10 on the outer surface of the movable bed frame and the slats 10 on the outer surface of the fixed bed frame are mutually embedded. When installing the push-pull bed, place the two ends of a first frame rod 4 respectively against the two sides of the two first legs 1, and use bolts to connect the first frame rod 4 to the two first legs 1. Then connect one end of the two first support rods 5 to the top ends of the two connected first legs 1 by bolts. Subsequently, use bolts to connect the two first legs 1 to the two ends of a first frame rod 4. Then connect the top end of the connected first leg 1 to the unconnected ends of the two first support rods 5 by bolts. At the top ends of the two first support rods 5, several slats 10 are fixed by bolts and the mortise and tenon assembly 2 to form a movable bed frame. Subsequently, place the two ends of a second frame rod 8 respectively against the two sides of the two second legs 7, and use bolts to connect the second frame rod 8 to the two second legs 7. Then connect one end of the two second support rods 9 to the top ends of the two connected second legs 7 by bolts. Subsequently, use bolts to connect the two second legs 7 to the two ends of a second frame rod 8. Then connect the top end of the connected second leg 7 to the unconnected ends of the two second support rods 9 by bolts. At the top ends of the two second support rods 9, several slats 10 are fixed by bolts and the mortise and tenon assembly 2 to form a fixed bed frame. Push the movable bed frame to move horizontally and insert it into the fixed bed frame to combine the movable bed frame and the fixed bed frame. When in use, pull the movable bed frame and move it through the moving wheels at the bottom end of the first frame rod 4, and the movable bed frame can be unfolded.Turn the positioning bolt 11 on the outer surface of the second frame rod 8 so that one end of the positioning bolt 11 inserts into the positioning hole 6 on the outer surface of the first frame rod 4, which can fix the relative positions of the movable bed frame and the fixed bed frame. By arranging the slats 10 on the outer surfaces of the movable bed frame and the fixed bed frame in an exposed symmetrically fitted manner, the traditional inner sleeve type and slide rails are eliminated, improving the practicality and structural strength when using the push-pull bed.

[0033] Referring to Figures 1-6 As shown, in this embodiment: The mortise and tenon assembly 2 includes an insertion piece 24. A bayonet 25 is provided at the bottom end of the insertion piece 24. A number of card slots 21 are provided on the outer surfaces of the first frame rod 5 and the second frame rod 9. A convex block 22 is fixedly connected to the inner wall of the card slot 21. Two rectangular holes 23 are provided at one end of the slat 10. When installing the slat 10, place the two ends of the slat 10 on the tops of two first frame rods 5 or two second frame rods 9 respectively. Connect one end to the outer surface of the first frame rod 5 or the second frame rod 9 with a bolt. Insert the other end into the card slot 21 on the outer surface of the first frame rod 5 or the second frame rod 9, and then horizontally move the slat 10 so that the rectangular hole 23 at one end of the slat 10 is inserted on the outer surface of the convex block 22 inside the card slot 21. Then insert an insertion piece 24 into the card slot 21 so that the bayonet 25 at the bottom end of the insertion piece 24 engages with the bottom end inner wall of the card slot 21 to fix the position of one end of the slat 10 inside the card slot 21. Connecting the slat 10 to the first frame rod 5 or the second frame rod 9 through a mortise and tenon structure facilitates the disassembly and assembly of the slat 10 and makes the slat 10 not prone to shaking and falling after installation.

[0034] Referring to Figure 1 、 Figure 3 、 Figure 4 and Figure 7 As shown, in this embodiment: A support device 3 is provided on the outer surface of the second leg 7. The support device 3 includes a rectangular block 31. One side of the rectangular block 31 is fixedly connected to one side of the second leg 7. A screw rod 32 is threadedly connected to the inner wall of the rectangular block 31. The bottom end of the screw rod 32 is rotatably connected to an L-shaped block 33. One side of the L-shaped block 33 slides on one side of the second leg 7. By providing the support device 3, when using the push-pull bed, if the ground is uneven or the connection structure of the fixed bed frame is loose, resulting in the angle deviation of the second legs 7 at the four corners of the fixed bed frame, the screw rod 32 can be rotated at the second legs 7 with different heights to control the screw rod 32 to move downward in the inner wall of the rectangular block 31 so that one side of the L-shaped block 33 slides downward on one side of the second leg 7, and the bottom end of the L-shaped block 33 is abutted against the ground to support the second leg 7, keeping the whole push-pull bed balanced.

[0035] Referring to Figure 3 、 Figure 4 、 Figure 7 and Figure 8As shown, in this embodiment: one end of the L-shaped block 33 is fixedly connected to a stopper 34, which is made of sponge material. By setting the stopper 34 of sponge material, the end of the L-shaped block 33 away from the second leg 7 can be blocked and protected, thereby preventing the person's limbs from directly colliding with one end of the L-shaped block 33 and being injured as much as possible. The top of the screw 32 is fixedly connected to a round block 35, and the top of the round block 35 is rotatably connected to a round rod 36. Holding the outer surface of the round rod 36 can more conveniently push the round block 35 to control the screw 32 to rotate and adjust the height position of the L-shaped block 33. The top of the L-shaped block 33 is fixedly connected to a positioning rod 37, and the outer surface of the positioning rod 37 slides on the inner wall of the rectangular block 31. When the screw 32 is rotated to control the L-shaped block 33 to move up and down, the positioning rod 37 will slide on the inner wall of the rectangular block 31, further limiting the angle between the L-shaped block 33 and the rectangular block 31, and avoiding shaking when the L-shaped block 33 moves as much as possible.

[0036] Reference Figure 7 and Figure 8 As shown, in this embodiment: a slot 38 is provided at one end of the L-shaped block 33, and a rod 39 is slidably inserted into the inner wall of the slot 38, and a rubber block 310 is fixedly connected to the bottom end of the rod 39. After the push-pull bed is installed, an insertion rod 39 can be inserted into the slot 38 on one side of the L-shaped block 33 on one side of each L-shaped block 33, and the rubber block 310 on one side of the insertion rod 39 can be installed at the bottom end of the L-shaped block 33. The rubber block 310 can increase the friction between the bottom end of the L-shaped block 33 and the ground, so that the L-shaped block 33 is not easy to slide when supporting the second leg 7. Two auxiliary grooves 311 are provided on one side of the insertion rod 39, and the inner walls of the two auxiliary grooves 311 are connected. By hooking the hand at the auxiliary groove 311 at one end of the insertion rod 39, the insertion rod 39 can be pulled out from the inside of the slot 38 to replace the rubber block 310 more conveniently.

[0037] Working principle: When installing the push-pull bed, the two ends of a first frame rod 4 are respectively attached to the two sides of two first legs 1, and bolts are used to connect the first frame rod 4 to the two first legs 1. Then, one end of two first support rods 5 is connected to the top ends of the two first legs 1 after connection through bolts. Subsequently, bolts are used to connect the two first legs 1 to the two ends of a first frame rod 4. Then, the top ends of the connected first legs 1 are connected to the unconnected ends of the two first support rods 5 through bolts. At the top ends of the two first support rods 5, the two ends of the bed slats 10 are respectively placed on the top ends of the two first support rods 5. One end is connected to the outer surface of the first support rod 5 through a bolt, and the other end is inserted into the inner part of the card slot 21 on the outer surface of the first support rod 5. The bed slat 10 is horizontally moved so that the rectangular hole 23 at one end of the bed slat 10 is inserted on the outer surface of the convex block 22 inside the card slot 21. Then, a plug piece 24 is inserted into the inner part of the card slot 21 so that the bayonet 25 at the bottom end of the plug piece 24 engages with the bottom end inner wall of the card slot 21 to fix the position of one end of the bed slat 10 inside the card slot 21 to form a movable bed frame. Then, the two ends of a second frame rod 8 are respectively attached to the two sides of two second legs 7, and bolts are used to connect the second frame rod 8 to the two second legs 7. Then, one end of two second support rods 9 is connected to the top ends of the two second legs 7 after connection through bolts. Subsequently, bolts are used to connect the two second legs 7 to the two ends of a second frame rod 8. Then, the top ends of the connected second legs 7 are connected to the unconnected ends of the two second support rods 9 through bolts. At the top ends of the two second support rods 9, several bed slats 10 are fixed through bolts and a mortise and tenon assembly 2 to form a fixed bed frame. The movable bed frame is pushed to move horizontally and inserted into the inner part of the fixed bed frame to combine the movable bed frame and the fixed bed frame. When in use, the movable bed frame can be unfolded by pulling the movable bed frame to move through the moving wheels at the bottom end of the first frame rod 4. By rotating the positioning bolt 11 on the outer surface of the second frame rod 8 so that one end of the positioning bolt 11 is inserted into the positioning hole 6 on the outer surface of the first frame rod 4, the relative positions of the movable bed frame and the fixed bed frame can be fixed. When using the push-pull bed, if the ground is uneven or the connection structure of the fixed bed frame is loose, resulting in the angles of the second legs 7 at the four corners of the fixed bed frame being skewed, the screw rod 32 can be rotated at the second legs 7 with different heights to control the screw rod 32 to move downward inside the inner wall of the rectangular block 31, so that one side of the L-shaped block 33 slides downward on one side of the second leg 7, and the bottom end of the L-shaped block 33 is abutted against the ground to support the second leg 7, so that the whole push-pull bed is kept balanced.

[0038] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present utility model, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model still fall within the protection scope of the technical solution of the present utility model. In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection" and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

Claims

1. An adjustable push-pull bed, comprising a plurality of first legs (1), second legs (7) and a plurality of slats (10), characterized in that: On one side where the two first legs (1) are close to each other, a first frame rod (4) is connected by bolts. At the bottom end of the first frame rod (4), two sets of moving wheels are provided. On one side of the first frame rod (4), a number of positioning holes (6) are opened. On one side where the two first legs (1) are close to each other, a first support rod (5) is fixedly connected by bolts. One end of the bed slat (10) is provided with a mortise and tenon assembly (2). The four first legs (1), the two first frame rods (4) and the two first support rods (5) and a number of bed slats (10) form a movable bed frame. The two ends of the bed slat (10) are respectively connected to the two first support rods (5) of the movable bed frame by bolts and the mortise and tenon assembly (2). On one side where the two second legs (7) are close to each other, a second frame rod (8) is connected by bolts. On one side of the second frame rod (8), a positioning bolt (11) is threadedly connected. On one side where the two second legs (7) are close to each other, a second support rod (9) is fixedly connected by bolts. The four second legs (7), the two second frame rods (8) and the two second support rods (9) and a number of bed slats (10) form a fixed bed frame. The two ends of the bed slat (10) are respectively connected to the two second support rods (9) of the fixed bed frame by bolts and the mortise and tenon assembly (2). A number of bed slats (10) on the outer surface of the fixed bed frame are placed on the top of the first support rod (5) on one side of the movable bed frame. A number of bed slats (10) on the outer surface of the movable bed frame are placed on the top of the second support rod (9) on one side of the fixed bed frame. The length of the first support rod (5) is slightly less than the length of the second support rod (9). The bed slats (10) on the outer surface of the movable bed frame and the bed slats (10) on the outer surface of the fixed bed frame are mutually engaged.

2. The adjustable push-pull bed according to claim 1, wherein: The mortise and tenon assembly (2) includes an insert piece (24). At the bottom end of the insert piece (24), a bayonet (25) is opened. On the outer surfaces of the first support rod (5) and the second support rod (9), a number of card slots (21) are opened. On the inner wall of the card slot (21), a convex block (22) is fixedly connected. At one end of the bed slat (10), two rectangular holes (23) are opened.

3. The adjustable push-pull bed according to claim 2, wherein: On the outer surface of the second leg (7), a support device (3) is provided. The support device (3) includes a rectangular block (31). One side of the rectangular block (31) is fixedly connected to one side of the second leg (7). Inside the rectangular block (31), a screw rod (32) is threadedly connected. At the bottom end of the screw rod (32), an L-shaped block (33) is rotatably connected. One side of the L-shaped block (33) slides on one side of the second leg (7).

4. The adjustable push-pull bed according to claim 3, characterized in that: One end of the L-shaped block (33) is fixedly connected with a stop block (34). The stop block (3) is made of sponge material.

5. The adjustable push-pull bed according to claim 4, characterized in that: At the top end of the screw rod (32), a round block (35) is fixedly connected. At the top end of the round block (35), a round rod (36) is rotatably connected.

6. The adjustable push-pull bed according to claim 5, characterized in that: At the top end of the L-shaped block (33), a positioning rod (s37) is fixedly connected. The outer surface of the positioning rod (37) slides inside the inner wall of the rectangular block (31).

7. The adjustable push-pull bed according to claim 6, characterized in that: One end of the L-shaped block (33) is provided with a slot (38), and a plug rod (39) is slidably inserted into the inner wall of the slot (38). The bottom end of the plug rod (39) is fixedly connected with a rubber block (310).

8. The adjustable push-pull bed according to claim 7, characterized in that: Two auxiliary grooves (311) are formed in one side of the plug rod (39), and the inner walls of the two auxiliary grooves (311) are communicated with each other.

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