Inclined horizontal type medical bed capable of automatically changing bed sheet

Abstract

The utility model provides an inclined horizontal type medical bed capable of automatically changing a bed sheet, which comprises a bed board, a bed body, a bed frame and a bed frame, the releasing roller is arranged at one end of the bed board and is suitable for mounting a rolled bed sheet; the collecting and storing roller is arranged at the other end of the bed board and is suitable for rolling the bed sheet; the supporting seats are arranged on the two sides of the turning position of the bed board; the hose is connected between the supporting seats on the two sides; plugs are arranged at the two ends of the hose, so that a closed space is formed in the hose; a joint is arranged on the plug; the bed sheet sequentially passes through the release roller, the hose and the storage roller; the air pump is communicated with the connector through an air guide pipe; the air pump is suitable for conducting air exhaust and air inflation on the hose, and the hose collapses and becomes flat during air exhaust. The device overcomes the defect that in the prior art, when a bed board is in a turning posture, the bed board is difficult to effectively cover by a bed sheet for automatic bed sheet changing medical treatment.

Description

Technical Field

[0001] The utility model relates to the technical field of medical beds, in particular to a medical bed capable of reclining and automatically changing sheets. Background Art

[0002] Medical beds are public medical and health equipment. In order to prevent cross infection between different patients and between patients at different stages of illness, bed sheets need to be changed frequently. In order to reduce this repetitive work, medical beds that can automatically change bed sheets have emerged. The general structure of an automatic bed sheet changing medical bed is to set two rollers at the head and foot of the bed, one roller is used to install a continuous roll of bed sheet, and the bed sheet stretched out from the roll crosses and covers the bed board, and then is rolled and collected by the other roller. Existing automatic bed sheet changing medical beds are all flat beds, which are adapted to the characteristics of the bed sheet covering itself after crossing the bed board. In order to provide patients with a more comfortable use experience, ordinary medical beds have a bed board that can be tilted from the middle to support the patient's upper body in a reclining position. At this time, the bed board will appear to be turned at an obtuse angle. If this type of bed is equipped with an automatic sheet changing device, the sheets running between the two rollers at the head and foot of the bed will take the shortest path, resulting in a situation where the bed board and the sheets together form a complete obtuse triangle. In this way, the sheets cannot effectively cover the bed boards on both sides of the obtuse angle by themselves, causing inconvenience to use. Utility Model Content

[0003] Therefore, the technical problem to be solved by the utility model is to overcome the defect of the automatic bed sheet changing device in the prior art that it is difficult for the bed sheet to effectively cover the bed board when the bed board is in a turning posture.

[0004] In order to solve the above technical problems, the present application provides a medical bed with automatic sheet changing function which can be tilted and lied, and comprises:

[0005] The bed board is cut off in the middle and is rotatably connected;

[0006] a release roller, disposed at one end of the bed board and adapted to install a rolled bed sheet;

[0007] A storage roller is arranged at the other end of the bed board and is suitable for rolling up the bed sheet;

[0008] Support seats are arranged on both sides of the turning point of the bed board;

[0009] A hose is connected between the support seats on both sides; plugs are provided at both ends of the hose, so that a closed space is formed inside the hose; a joint is provided on the plug; there is a gap between the hose and the bed board, and the bed sheet passes through the release roller, the hose, and the storage roller in sequence;

[0010] The air pump is connected to the joint through the air guide tube; the air pump is suitable for performing two operations of evacuating and inflating the hose, and the hose collapses and becomes flat when the air is evacuated;

[0011] Stoppers are arranged on the outer side walls of both ends of the hose, a bearing is connected between the hose and the support seat, and the stoppers abut against the outer end surface of the inner ring of the bearing;

[0012] A bearing seat and a support seat spring are arranged in the support seat; the bearing seat forms a sliding connection with the support seat along the axis of the hose, the bearing is installed in the bearing seat, the support seat spring is arranged between the support seat and the bearing seat, and the support seat spring drives the bearing seat to move in the direction of straightening the hose.

[0013] Furthermore, pipe sleeves are bonded to the outer side walls of both ends of the hose, the pipe sleeves are inserted into the inner ring of the bearing, and the stopper is fixedly connected to the pipe sleeves.

[0014] Furthermore, the air pump includes a cylinder, a piston and a power device; the power device drives the piston to perform reciprocating motion in the cylinder, and the air guide pipe is connected to one end of the cylinder.

[0015] Furthermore, the power device includes an electromagnet and an air pump spring, and the piston includes an iron core and a rubber sleeve covering the outside of the iron core; the electromagnet is suitable for attracting the iron core; the air pump spring is connected between the iron core and the cylinder and is suitable for driving the iron core to reset.

[0016] Furthermore, the air pump spring is located on a side of the iron core close to the electromagnet.

[0017] Furthermore, the air guide pipe is connected to a side of the cylinder close to the electromagnet.

[0018] By adopting the above technical solution, the utility model has the following technical effects:

[0019] The utility model provides a reclining and automatically changing bed sheet medical bed. When changing bed sheets, the air pump is used to inflate the hose, so that the hose forms a round straight rod-like state, so that the bed sheet is turned through the hose at a tangential angle, which is conducive to reducing the running resistance of the bed sheet and preventing accidents such as scratching the partition. Then the bed sheet is driven, and the newly laid bed sheet passes through the release roller, the hose, and the storage roller in sequence, and can form a corresponding turning shape along with the turning of the bed board, so as to fit the shape of the tilted bed board and cover the bed board at different turning angles by itself. After changing the bed sheet, the air pump is used to pump air into the hose, and then the hose collapses and flattens due to the decrease in air pressure, so as to reach a flat sheet-like state. In this way, the straight rod-like hose that originally protruded from the bed board can greatly reduce its own height, so that the patient will not be hit by the protrusion after lying on the bed, thereby ensuring the patient's comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic side view of the structure of an embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the connection structure of the support seat, hose, air pump and other components of the embodiment of the utility model;

[0023] Figure 3 A schematic cross-sectional view of the internal structure of the supporting base related components of an embodiment of the utility model;

[0024] Figure 4 This is a schematic cross-sectional view of the structure of an air pump according to an embodiment of the utility model.

[0025] Description of reference numerals:

[0026] 1-release roller, 2-sheet, 3-back plate, 4-support seat, 5-leg plate, 6-storage roller, 7-air pump, 8-air guide tube, 9-connector, 10-hose, 11-support seat spring, 12-bearing seat, 13-bearing, 14-pipe sleeve, 16-plug, 17-electromagnet, 18-output port, 19-cylinder, 20-air pump spring, 21-rubber sleeve, 22-iron core, 23-vent. DETAILED DESCRIPTION

[0027] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] It should be noted that in the description of the present invention, the coordinate system used in this specification when describing the orientation is determined by the posture of the corresponding main view, and the naming of the observation angle of the corresponding view is also based on this. Therefore, the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. in this specification indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing 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.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0031] This embodiment provides a medical bed that can be tilted and laid horizontally and has automatic sheet-changing functions.

[0032] In one embodiment, Figures 1 to 4 As shown, it includes: a bed board, a release roller 1, a storage roller 6, a support seat 4, a hose 10 and an air pump 7. The bed board is divided from the middle to form a backboard 3 suitable for supporting the upper body of the patient and a leg board 5 for supporting the lower body. The backboard 3 and the leg board 5 are rotatably connected, and the backboard 3 can be tilted so that the patient is in a reclining position. The release roller 1 is arranged at one end of the bed board and is suitable for installing a rolled bed sheet 2; the storage roller 6 is arranged at the other end of the bed board and is suitable for rolling up the bed sheet 2. The support seat 4 is arranged on both sides of the turning point of the bed board. The hose 10 is connected between the support seats 4 on both sides; plugs 16 are arranged at both ends of the hose 10, so that a closed space is formed inside the hose 10. A joint 9 is arranged on the plug 16; to simplify the structure, the joint 9 can be arranged only on the plug 16 on one side. The bed sheet 2 passes through the release roller 1, the hose 10 and the storage roller 6 in sequence during operation. The air pump 7 is connected to the joint 9 through the air guide tube 8; the air pump 7 is suitable for performing two operations of evacuating and inflating the hose 10, and the hose 10 collapses and becomes flat when the air is evacuated.

[0033] When the bed sheet 2 needs to be replaced, the device inflates the hose 10 through the air pump 7, so that the hose 10 forms a round straight rod-like state, so that the bed sheet 2 passes through the hose 10 at a tangential angle to complete the turning, which is conducive to reducing the running resistance of the bed sheet 2 and preventing accidents such as scratching the partition. After that, the bed sheet 2 is driven, and the newly laid bed sheet 2 passes through the release roller 1, the hose 10, and the storage roller 6 in sequence, and can form a corresponding turning shape along with the turning of the bed board, so as to fit the shape of the tilted bed board and can cover the bed board at different turning angles by itself. After the bed sheet 2 is replaced, the air is pumped into the hose 10 through the air pump 7, and then the hose 10 collapses and flattens due to the decrease in air pressure, so as to reach a flat sheet-like state, so that the straight rod-like hose 10 originally protruding from the bed board can greatly reduce its own height, so that the patient will not be hit by the protrusion after lying on the bed, ensuring the patient's comfort. For the sake of overall hygiene, when replacing bed sheets, after the old bed sheets have completely passed through the hose 10, the hose 10 may be disinfected with alcohol before the new bed sheets are driven into place.

[0034] Based on the above implementation, in a preferred implementation, Figure 3 As shown, blocks 15 are provided on the outer walls of both ends of the hose 10, and a bearing 13 is connected between the hose 10 and the support seat 4. The block 15 abuts against the outer end surface of the inner ring of the bearing 13, thereby preventing the hose 10 from coming out of the bearing 13. Although the hose 10 and the support seat 4 can be fixedly connected, and the hose 10 is pulled between the two support seats 4 like a drawstring, the sliding friction between the hose 10 and the bed sheet 2 is not conducive to further reducing the running resistance of the bed sheet 2. Therefore, after the bearing 13 is provided, the sliding friction is converted into rolling friction, which can greatly reduce the running resistance of the bed sheet 2, reduce the energy consumption of the equipment, and prevent the bed sheet 2 from being accidentally torn off due to excessive resistance. In order to adapt to the continuous rotation of the hose 10, the joint 9 should use a rotary joint so that ventilation connection can be achieved at various rotation angles.

[0035] Based on the above implementation, in a preferred implementation, Figure 3 As shown, sleeves 14 are bonded to the outer walls of both ends of the hose 10, the sleeves 14 are inserted into the inner ring of the bearing 13, and the stopper 15 is fixedly connected to the sleeves 14. The hose 10 itself is relatively soft and not conducive to fixation, so adding a harder sleeve 14 can make the hose 10 more firmly and stably connected to the bearing 13.

[0036] Based on the above implementation, in a preferred implementation, Figure 3As shown, a bearing seat 12 and a support seat spring 11 are arranged in the support seat 4; the bearing seat 12 forms a sliding connection with the support seat 4 along the axis of the hose 10, the bearing 13 is installed in the bearing seat 12, and the support seat spring 11 is arranged between the support seat 4 and the bearing seat 12, and the support seat spring 11 drives the bearing seat 12 to move in the direction of straightening the hose 10. This arrangement is because when the hose 10 collapses and becomes flat, both sides collapse toward the central axis. When the two ends of the hose 10 are straightened and there is no elongation in the length direction, the collapse limit of the height of the hose 10 is limited by the central axis, which is at most about the height of one radius. Therefore, if you want to further reduce the height of the hose 10 protruding from the bed board, the central axis of the hose 10 itself needs to collapse downward. Therefore, in addition to relying on the elasticity of the hose 10 itself to stretch the central axis to produce collapse, this embodiment also adds a slidable bearing seat 12, so that when the patient's skin squeezes the hose 10, the bearing seat 12 is offset to the inside of the bed to accommodate the deformation of the hose 10, and finally the hose 10 is completely fitted with the bed board. When the bed sheet 2 needs to be replaced, because the patient leaves the bed, the support seat spring 11 will push the bearing seat 12 to straighten the hose 10 again, and finally the inflated hose 10 will form a round straight rod shape.

[0037] Based on the above implementation, in a preferred implementation, Figure 4 As shown, the air pump 7 includes a cylinder 19, a piston and a power device; the power device drives the piston to reciprocate in the cylinder 19, and the air guide pipe 8 is connected to one end of the cylinder 19 through the output port 18. In order not to hinder the movement of the piston, a vent 23 should preferably be opened at the other end of the cylinder 19. This is because the amount of air stored in the hose 10 is very limited, and there is no need to use a large-displacement air pump that can run continuously. Therefore, the air pump 7 adopts a simple piston pump form, which not only meets the demand for small-displacement air suction, but also reduces the equipment manufacturing cost.

[0038] Based on the above implementation, in a preferred implementation, Figure 4 As shown, the power device includes an electromagnet 17 and an air pump spring 20, and the piston includes an iron core 22 and a rubber sleeve 21 covering the outer side of the iron core 22; the electromagnet 17 is suitable for attracting the iron core 22; the air pump spring 20 is connected between the iron core 22 and the cylinder 19, and is suitable for driving the iron core 22 to reset. The reciprocating structure of electromagnetically driven spring reset is a low-cost and reliable structural solution, which is conducive to reducing the manufacturing cost of the equipment.

[0039] Based on the above implementation, in a preferred implementation, Figure 4As shown, the air pump spring 20 is located on the side of the iron core 22 close to the electromagnet 17. Placing the air pump spring 20 on this side is conducive to shortening the total length of the cylinder 19. Although the spring can be compressed, it still has a minimum height. If the air pump spring 20 is set Figure 4 If the piston is in the right cavity, the piston cannot be as close to the end of the cylinder 19 as possible, thereby increasing the total length of the cylinder 19.

[0040] Based on the above implementation, in a preferred implementation, Figure 4 As shown, the air guide tube 8 is connected to the side of the cylinder 19 near the electromagnet 17. After such arrangement, the electromagnet 17 attracts the piston, which is the process of inflating the hose 10, and the air pump spring 20 pushes the piston to reset, which is the process of exhausting air. Because the medical bed is in a state where the bed sheet 2 does not need to be changed most of the time, the air pump 7 is in a working state of always exhausting air and inflating air after power is turned on, which can greatly reduce the energy consumption of the equipment and improve the working reliability of the equipment.

[0041] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A medical bed that can be tilted and lied and can automatically change sheets, characterized in that: include: The bed board is cut off in the middle and is connected in rotation; A release roller (1) disposed at one end of the bed board and suitable for mounting a rolled bed sheet (2); A storage roller (6) is arranged at the other end of the bed board and is suitable for rolling up the bed sheet (2); Support seats (4) are arranged on both sides of the turning point of the bed board; A hose (10) is connected between the support seats (4) on both sides; plugs (16) are provided at both ends of the hose (10), so that a closed space is formed inside the hose (10); a joint (9) is provided on the plug (16); there is a gap between the hose (10) and the bed board, and the bed sheet (2) passes through the release roller (1), the hose (10), and the storage roller (6) in sequence; The air pump (7) is connected to the joint (9) through the air guide tube (8); the air pump (7) is suitable for performing two operations of evacuating and inflating the hose (10), and the hose (10) collapses and flattens when evacuating air; Blocks (15) are provided on the outer side walls of both ends of the hose (10); a bearing (13) is connected between the hose (10) and the support seat (4); the block (15) abuts against the outer end surface of the inner ring of the bearing (13); and the joint (9) is a rotary joint; A bearing seat (12) and a support seat spring (11) are arranged in the support seat (4); the bearing seat (12) is slidably connected with the support seat (4) along the axis of the hose (10); the bearing (13) is installed in the bearing seat (12); the support seat spring (11) is arranged between the support seat (4) and the bearing seat (12); the support seat spring (11) drives the bearing seat (12) to move in the direction of straightening the hose (10).

2. The reclining and automatically changing bed sheet medical bed according to claim 1 is characterized in that: A pipe sleeve (14) is bonded to the outer side walls of both ends of the hose (10), the pipe sleeve (14) is inserted into the inner ring of the bearing (13), and a stopper (15) is fixedly connected to the pipe sleeve (14).

3. The reclining and automatically changing bed sheet medical bed according to claim 1 is characterized in that: The air pump (7) comprises a cylinder (19), a piston and a power device; the power device drives the piston to perform reciprocating motion in the cylinder (19), and the air guide pipe (8) is connected to one end of the cylinder (19).

4. The reclining and automatically changing bed sheet medical bed according to claim 3 is characterized in that: The power device comprises an electromagnet (17) and an air pump spring (20); the piston comprises an iron core (22) and a rubber sleeve (21) covering the outer side of the iron core (22); the electromagnet (17) is suitable for attracting the iron core (22); the air pump spring (20) is connected between the iron core (22) and the cylinder (19), and is suitable for driving the iron core (22) to reset.

5. The reclining and automatically changing bed sheet medical bed according to claim 4 is characterized in that: The air pump spring (20) is located on a side of the iron core (22) close to the electromagnet (17).

6. The reclining and automatically changing bed sheet medical bed according to claim 4, characterized in that: The air guide pipe (8) is connected to a side of the cylinder (19) close to the electromagnet (17).

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