An in-tube roller-type guide structure and an electric bed with abdominal relief function

Abstract

This utility model belongs to the field of electric bed technology, specifically an internal roller guide structure and an electric bed with abdominal relief function. The internal roller guide structure includes a fixed tube, a movable tube, and rollers. One end of the movable tube is inserted into the fixed tube. The rollers are located inside the fixed tube, and two pairs of rollers are spaced apart on the movable tube to support the extension and retraction of the movable tube within the fixed tube. This utility model's internal roller guide structure is simple in structure and flexible in operation. When applied to an electric bed, the extension of the movable tube allows the backrest board to shift backward, releasing the pressure exerted by the mattress on the body and improving comfort.

Description

Technical Field

[0001] This utility model relates to the field of electric bed technology; specifically, this utility model relates to an electric bed with an internal roller guide structure and an abdominal relief function. Background Technology

[0002] During the transition from bed to chair mode in a convertible electric bed, the rear end of the backrest board, along with the headrest, tilts upwards to support the back of the person in a sitting position. However, since the backrest board simply swings, the area between the buttocks and backrest boards of the mattress experiences severe compression and deformation. As a result, the pressure on the mattress is applied to the back, causing discomfort. The connection between the front end of the backrest board and the bed frame is the main cause of this phenomenon. Therefore, this application provides an electric bed with an internal roller guide structure and an abdominal relief function. Utility Model Content

[0003] In view of this, the present invention provides an in-tube roller guide structure and an electric bed with abdominal relief function, thereby solving or at least alleviating the above-mentioned problems existing in the prior art.

[0004] The first aspect of this utility model provides an in-tube roller guide structure, including a fixed tube body, a movable tube body, and rollers. One end of the movable tube body is inserted into the fixed tube body, and the rollers are located inside the fixed tube body. Two pairs of rollers are spaced apart on the movable tube body to support the extension and retraction of the movable tube body within the fixed tube body.

[0005] In the aforementioned tube roller guide structure, optionally, the outer diameter of the roller is adapted to the height of the inner cavity of the fixed tube, and the side of the roller is in contact with the inner wall of the fixed tube.

[0006] In the aforementioned tube roller guide structure, optionally, the outer diameter of the roller is smaller than the inner cavity height of the fixed tube, so that the extended end of the movable tube can tilt upward with the roller located at the innermost side of the inner cavity of the fixed tube as the fulcrum.

[0007] The second aspect of this utility model provides an electric bed with abdominal relief function, including a bed frame, a hip board, a back board, and the tube roller guide structure described in any one of the above. The fixed tube is located on both sides of the hip board, and the hip board is fixed to the bed frame through the connection between the fixed tube and the bed frame. The protruding end of the movable tube is rotatably connected to the end of the back board near the hip board. A support rod is rotatably connected to the back board at its rear side near the end of the hip board, and the end of the support rod away from the back board is rotatably connected to the bed frame.

[0008] In the electric bed with abdominal relief function as described above, optionally, a hinge seat is fixedly connected to the lower surface of the backrest bed board, the hinge seat is rotatably connected to an electric telescopic rod, and the other end of the electric telescopic rod is rotatably mounted on the buttocks bed board.

[0009] In an electric bed with abdominal relief function as described above, optionally, the rotatable connection between the hinge seat and the electric telescopic rod extends from the front of the backrest board.

[0010] The inner roller guide structure of this utility model is simple in structure and highly flexible. Its movable tube can extend more smoothly from the fixed tube after being subjected to force.

[0011] The electric bed with abdominal relief function of this utility model adopts the above-mentioned tube roller guide structure. When the tail of the backrest board is raised, the movable tube extends out of the fixed tube to keep the front end of the backrest board at a certain height, and the backrest board moves backward to release the pressure of the mattress on the human body and improve comfort. Attached Figure Description

[0012] The disclosure of this utility model will become more apparent with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings:

[0013] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0014] Figure 2 This is a schematic diagram of the structure of a movable tube according to an embodiment of the present invention;

[0015] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of this utility model;

[0016] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0017] Figure 5 This is another perspective view of Embodiment 2 of this utility model;

[0018] Figure 6 This utility model Figure 5 Enlarged view of section B in the middle.

[0019] Reference numerals in the attached diagram: 1-Inner tube roller guide structure; 1.1-Fixed tube body; 1.2-Moving tube body; 1.3-Roller; 2-Bed frame; 3-Buttocks board; 4-Backrest board; 5-Support rod; 6-Hinge seat; 7-Electric telescopic rod. Detailed Implementation

[0020] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] like Figure 1 and Figure 2 As shown, this embodiment provides an in-tube roller guide structure, including a fixed tube 1.1, a movable tube 1.2, and rollers 1.3. One end of the movable tube 1.2 is inserted into the fixed tube 1.1. The rollers 1.3 are located inside the fixed tube 1.1, and two pairs of rollers 1.3 are spaced apart on the movable tube 1.2, which can support the extension and retraction of the movable tube 1.2 within the fixed tube 1.1. By setting the rollers 1.3 to support the end of the movable tube 1.2 inserted into the fixed tube 1.1, and simultaneously using the movable tube 1.2 to guide the fixed tube 1.1, the extended end of the movable tube 1.2 can flexibly extend and retract relative to the fixed tube 1.1 after being subjected to an outward force.

[0022] As a first alternative implementation, the outer diameter of the roller 1.3 is adapted to the inner height of the fixed tube 1.1, and the side of the roller 1.3 is in contact with the inner wall of the fixed tube 1.1. This arrangement makes the extension and retraction direction of the movable tube 1.2 more stable.

[0023] As a second optional implementation, the outer diameter of roller 1.3 is smaller than the inner height of the fixed tube 1.1, so that the protruding end of the movable tube 1.2 can be tilted upward with roller 1.3, located at the innermost part of the inner cavity of the fixed tube 1.1, as the fulcrum. With this arrangement, when the protruding end of the movable tube 1.2 is subjected to an upward inclined pulling force, its protruding end can first tilt upward until the roller 1.3 near the protruding end contacts the inner top wall of the fixed tube 1.1, and then the movable tube 1.2 extends outward.

[0024] like Figures 3 to 6 As shown, this embodiment 2 provides an electric bed with abdominal relief function, including a bed frame 2, a hip bed board 3, a back bed board 4, and the aforementioned tube roller guide structure 1. The fixed tube 1.1 is located on both sides of the hip bed board 3, and the hip bed board 3 is fixed to the bed frame 2 through the connection between the fixed tube 1.1 and the bed frame 2. The protruding end of the movable tube 1.2 is rotatably connected to the end of the back bed board 4 near the hip bed board 3, and a support rod 5 is rotatably connected to the back bed board 4 at the rear side of its end near the hip bed board 3, and the end of the support rod 5 away from the back bed board 4 is rotatably connected to the bed frame 2.

[0025] In the initial state, the backrest board 4 is attached to the bed frame 2. When the end of the backrest board 4 near the buttocks of the bed frame 2 is subjected to downward pressure, its rear end can swing upward around the extended end of the movable tube 1.2. During this process, the backrest board 4 is subjected to the reverse pulling force of the support rod 5. This pulling force is transmitted to the movable tube 1.2, which will continuously extend from the fixed tube 1.1. In this process, the backrest board 4 tilts upward and moves backward, which can release the force exerted on the body by the mattress and improve comfort.

[0026] When combined with the first optional embodiment described above, the front end of the backrest board 4 is at a moderate height during the upward tilting process, resulting in greater stability. When combined with the second optional embodiment described above, in the initial stage of the upward tilting of the backrest board 4, the movable tube 1.2 tilts upward through its extended end, allowing the backrest board 4 to better accommodate the upward tilting of the support rod 5, thereby enabling the support rod 5 to tilt more smoothly from its initial horizontal state to its inclined state.

[0027] The lower surface of the backrest bed board 4 is fixedly connected to a hinge seat 6, which is rotatably connected to an electric telescopic rod 7. The other end of the electric telescopic rod 7 is rotatably mounted on the buttocks bed board 3. When the electric telescopic rod 7 extends, it provides a force for the backrest bed board 4 to tilt upwards. At the same time, during the extension of the electric telescopic rod 7, its separation allows the movable tube 1.2 to extend more smoothly from the fixed tube 1.1, thereby allowing the backrest bed board 4 to tilt upwards and move backwards more smoothly.

[0028] Furthermore, the hinge seat 6 and the electric telescopic rod 7 extend from the front of the backrest bed board 4 at their rotatable connection. In the initial state, the electric telescopic rod 7 is tilted downwards at its rear end. As the electric telescopic rod 7 extends, the rear end of the electric telescopic rod 7 swings upwards as the backrest bed board 4 tilts upwards, causing the electric telescopic rod 7 to continuously approach a horizontal state. Consequently, the direction of the force exerted by the electric telescopic rod 7 on the backrest bed board 4 changes from a tilted downward direction to a horizontal backward direction, allowing for smoother control of the backrest bed board 4 tilting upwards and moving backwards.

[0029] The technical scope of this utility model is not limited to the contents of the above description. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the scope of this utility model.

Claims

1. An intratubular roller guide, characterized in that It includes a fixed tube (1.1), a movable tube (1.2), and rollers (1.3). One end of the movable tube (1.2) is inserted into the fixed tube (1.1). The rollers (1.3) are located inside the fixed tube (1.1), and two pairs of rollers (1.3) are spaced apart on the movable tube (1.2) to support the extension and retraction of the movable tube (1.2) within the fixed tube (1.1).

2. The tube-mounted roller guide structure according to claim 1, characterized in that, The outer diameter of the roller (1.3) is adapted to the height of the inner cavity of the fixed tube (1.1), and the side of the roller (1.3) is in contact with the inner cavity sidewall of the fixed tube (1.1).

3. The tube-mounted roller guide structure according to claim 1, characterized in that, The outer diameter of the roller (1.3) is smaller than the inner height of the fixed tube (1.1), so that the protruding end of the movable tube (1.2) can tilt upward with the roller (1.3) located at the innermost part of the inner cavity of the fixed tube (1.1) as the fulcrum.

4. An electric bed with abdominal relief function, comprising a bed frame (2), a buttocks board (3), a back board (4), and an in-tube roller guide structure (1) as described in any one of claims 1 to 3, characterized in that, The fixed tube (1.1) is located on both sides of the buttocks bed board (3), and the buttocks bed board (3) is fixed to the bed frame (2) by the connection of the fixed tube (1.1) and the bed frame (2). The protruding end of the movable tube (1.2) is rotatably connected to the end of the back bed board (4) near the buttocks bed board (3), and a support rod (5) is rotatably connected to the back bed board (4) at the rear side near the end of the buttocks bed board (3), and the end of the support rod (5) away from the back bed board (4) is rotatably connected to the bed frame (2).

5. An electric bed with abdominal relaxation function according to claim 4, characterized in that, A hinge seat (6) is fixedly connected to the lower surface of the backrest bed board (4), and an electric telescopic rod (7) is rotatably connected to the hinge seat (6), and the other end of the electric telescopic rod (7) is rotatably mounted on the buttock bed board (3).

6. An electric bed with abdominal relaxation function according to claim 5, characterized in that, The hinge seat (6) and the electric telescopic rod (7) extend from the front of the backrest board (4).

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