Sickbed rollover driving protection device

Abstract

The utility model relates to the technical field of sickbeds, and particularly discloses a sickbed rollover driving protection device which comprises a bed bottom frame. The slow descending mechanism is arranged outside the bed bottom frame; the bed frame is connected to the outer part of the slow descending mechanism; the inclined main shaft is arranged in the bed frame; through the arrangement of the first spring shaft, the gas spring, the second spring shaft and the first push rod shaft, the gas spring with thrust is additionally arranged at the symmetrical position of the push rod, one end of the gas spring is connected to the second spring shaft on the bed frame, and the other end of the gas spring is connected to the first spring shaft on the bed underframe; the air spring is matched with the electric push rod to exert action on the bed surface mechanism, passive movement is achieved, and the thrust value of the air spring is close to the difference value obtained by subtracting the pulling force from the thrust of the electric push rod, so that the problems of insufficient pulling force and excessive pushing force are effectively solved, and the risk that the electric push rod is disconnected is avoided to the maximum extent.

Description

Technical Field

[0001] The utility model belongs to the technical field of hospital beds, and particularly relates to a side-turn driving protection device for a hospital bed. Background Art

[0002] A hospital bed is a special bed used to place patients for rest, treatment, and care. Hospital beds usually have functions of adjustable height, angle, and position. Hospital beds are generally divided into two types: manual hospital beds and electric hospital beds. Manual hospital beds require manual adjustment of height and angle, while electric hospital beds can conveniently achieve various adjustment functions through electric mechanisms.

[0003] The pulling force of the electric push rod of the hospital bed is significantly less than the pushing force, which means that the speed is slow when pulling up the bed surface, and there may even be a disconnection of the push rod due to accidental resistance, thus bringing potential safety hazards. During the use of the hospital bed, medical staff often need to adjust the patient's body position and position, and pulling up the bed surface is a common operation. However, when the pulling force of the electric push rod is insufficient, the operator needs to pull the push rod with great effort, resulting in a slow speed, which not only affects work efficiency but also may lead to operation errors or accidents. Content of the Utility Model

[0004] The purpose of the utility model is to provide a side-turn driving protection device for a hospital bed to solve the problems mentioned in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A side-turn driving protection device for a hospital bed, comprising:

[0007] A bed bottom frame;

[0008] A slow-down mechanism, which is arranged outside the bed bottom frame;

[0009] A bed frame, which is connected outside the slow-down mechanism;

[0010] An inclined main shaft, which is arranged inside the bed frame;

[0011] A bed surface mechanism, which is fixedly connected to the top of the bed frame.

[0012] Preferably, the slow-down mechanism includes a first spring shaft, a gas spring, and a second spring shaft. The first spring shaft is rotatably connected outside the bed bottom frame. A gas spring is connected to the outside of the first spring shaft. The top of the gas spring is rotatably connected to the second spring shaft. A first push rod shaft is arranged on one side of the first spring shaft. An electric push rod is rotatably connected to the outside of the first push rod shaft. The top of the electric push rod is rotatably connected to a second push rod shaft.

[0013] Preferably, the first spring shaft and the first push rod shaft are both fixedly installed on the outer side wall of the bed bottom frame, and the second push rod shaft and the second spring shaft are both fixedly connected to the outer side wall of the bed frame.

[0014] Preferably, the bed surface mechanism includes a calf plate, a thigh plate and a seat plate. The calf plate is arranged at the top of the bed frame. One side of the calf plate is connected with the thigh plate. The outside of the thigh plate is connected with the seat plate, and the outside of the seat plate is connected with a back plate.

[0015] Preferably, the thigh plate is fixedly connected to the top of the bed frame by screws.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] By arranging the first spring shaft, the gas spring, the second spring shaft and the first push rod shaft, a gas spring with a thrust is added at the symmetrical position of the push rod. One end of this gas spring is connected to the second spring shaft on the bed frame, and the other end is connected to the first spring shaft on the bed bottom frame. It cooperates with the electric push rod to exert an effect on the bed surface mechanism to realize passive movement. The magnitude of the thrust value of the gas spring is close to the difference between the thrust of the electric push rod minus the pulling force, thereby effectively overcoming the problems of insufficient pulling force and excessive thrust, and maximizing the avoidance of the danger of the disconnection of the electric push rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic side view of the structure of the present utility model;

[0019] Figure 2 It is a schematic diagram of the first three-dimensional structure of the present utility model;

[0020] Figure 3 It is a schematic diagram of the second three-dimensional structure of the present utility model.

[0021] In the figure: 1. Bed bottom frame; 2. Descent slowing mechanism; 201. First spring shaft; 202. Gas spring; 203. Second spring shaft; 204. First push rod shaft; 205. Electric push rod; 206. Second push rod shaft; 3. Bed frame; 4. Tilt main shaft; 5. Bed surface mechanism; 501. Calf plate; 502. Thigh plate; 503. Seat plate; 504. Back plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Example 1:

[0024] Please refer to Figures 1-3 as shown, a side-turning drive protection device for a hospital bed, comprising:

[0025] A bed bottom frame 1;

[0026] A slow descent mechanism 2, which is arranged outside the bed bottom frame 1;

[0027] A bed frame 3, which is connected to the outside of the slow descent mechanism 2;

[0028] An inclined main shaft 4, which is arranged inside the bed frame 3;

[0029] A bed surface mechanism 5, which is fixedly connected to the top of the bed frame 3. The slow descent mechanism 2 includes a first spring shaft 201, a gas spring 202 and a second spring shaft 203. The first spring shaft 201 is rotatably connected to the outside of the bed bottom frame 1. A gas spring 202 is connected to the outside of the first spring shaft 201. The top of the gas spring 202 is rotatably connected to the second spring shaft 203. A first push rod shaft 204 is arranged on one side of the first spring shaft 201. An electric push rod 205 is rotatably connected to the outside of the first push rod shaft 204. The top of the electric push rod 205 is rotatably connected to a second push rod shaft 206. Both the first spring shaft 201 and the first push rod shaft 204 are fixedly installed on the outer side wall of the bed bottom frame 1. Both the second push rod shaft 206 and the second spring shaft 203 are fixedly connected to the outer side wall of the bed frame 3. The bed surface mechanism 5 includes a calf plate 501, a thigh plate 502 and a seat plate 503. The calf plate 501 is arranged at the top of the bed frame 3. One side of the calf plate 501 is connected to the thigh plate 502. The outside of the thigh plate 502 is connected to the seat plate 503. The outside of the seat plate 503 is connected to a back plate 504. The thigh plate 502 is fixedly connected to the top of the bed frame 3 by screws.

[0030] Specifically, the bed frame 3 can rotate outside the inclined main shaft 4. The back plate 504 and the thigh plate 502 are connected by a live shaft to the seat plate 503. The calf plate 501 is connected by a live shaft to the thigh plate 502. The seat plate 503 is fixedly connected to the bed frame 3. Therefore, all the panels can move together with the bed frame 3.

[0031] As can be seen from the above, a thrust gas spring 202 is added at the symmetric position of the electric push rod 205. One end of the gas spring is connected to the bed frame 3 by a second spring shaft 203, and the other end is connected to the bed bottom frame 1 by a first spring shaft 201. It can move passively in cooperation with the action of the electric push rod 205 on the bed surface mechanism 5. The magnitude of the thrust value of the gas spring 202 is close to the difference obtained by subtracting the pulling force from the thrust of the electric push rod 205, so as to effectively overcome the defect of insufficient pulling force and excessive thrust and can avoid the disconnection of the motor to the greatest extent.

[0032] All standard parts used in the present utility model can be purchased from the market. Special-shaped parts can be customized according to the descriptions in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts a conventional connection method in the prior art, which will not be elaborated here. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0033] In the description of the present utility model, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. The meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0034] In the present utility model, unless otherwise clearly specified and defined, the terms such as "installation", "connection", "connection", and "fixation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; 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 or the interaction relationship between 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 according to specific circumstances.

[0035] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal height than the second feature. The first feature being "under", "below", and "beneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal height than the second feature.

[0036] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0037] In the drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved, and other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other.

[0038] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A bed rollover drive protection device, characterized in that: include: Bed frame (1); A slow-descent mechanism (2), the slow-descent mechanism (2) being arranged outside the bed base (1), the slow-descent mechanism (2) comprising a first spring shaft (201), a gas spring (202) and a second spring shaft (203), the first spring shaft (201) being rotatably connected to the outside of the bed base (1), the outside of the first spring shaft (201) being connected to the gas spring (202), the top end of the gas spring (202) being rotatably connected to the second spring shaft (203), a first push rod shaft (204) being arranged on one side of the first spring shaft (201), the outside of the first push rod shaft (204) being rotatably connected to an electric push rod (205), the top end of the electric push rod (205) being rotatably connected to the second push rod shaft (206); A bed frame (3), wherein the bed frame (3) is connected to the outside of the slow-descent mechanism (2); A tilting main shaft (4), wherein the tilting main shaft (4) is arranged inside the bed frame (3); A bed surface mechanism (5), wherein the bed surface mechanism (5) is fixedly connected to the top of the bed frame (3).

2. The bed rollover protection device according to claim 1, characterized in that: The first spring shaft (201) and the first push rod shaft (204) are both fixedly mounted on the outer side wall of the bed base frame (1), and the second push rod shaft (206) and the second spring shaft (203) are both fixedly connected to the outer side wall of the bed frame (3).

3. The bed rollover protection device according to claim 1, characterized in that: The bed surface mechanism (5) comprises a calf board (501), a thigh board (502) and a seat board (503); the calf board (501) is arranged at the top of the bed frame (3); one side of the calf board (501) is connected to the thigh board (502); the outside of the thigh board (502) is connected to the seat board (503); and the outside of the seat board (503) is connected to the back board (504).

4. The bed rollover protection device according to claim 3, characterized in that: The thigh board (502) is fixedly connected to the top of the bed frame (3) by means of screws.

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