Examination bed capable of enabling head to lean backwards

Abstract

The utility model discloses an examination couch capable of enabling the head to lean backwards, which comprises a main couch frame provided with a mattress, a back frame and a head frame, the two ends of the back frame are respectively hinged with the main couch frame and the head frame, a chassis assembly is arranged below the main couch frame, the examination couch further comprises a first lifting mechanism, and the two ends of an air spring are respectively hinged with the head frame and the back frame. The first driving assembly is rotatably mounted below the main bed frame and is hinged to a back adjusting plate fixed below the back frame through a first push rod; each second lifting assembly comprises a second driving assembly hinged to the lower portion of the main bed frame, a second push rod of each second driving assembly is hinged to a transmission arm, each transmission arm is fixed to a crank, the upper end of each crank is hinged to the main bed frame, and the lower end of each crank slides along a sliding rail on the chassis assembly; an adjusting arm is further hinged to the crank and hinged to the chassis assembly. According to the device, the back frame can be adjusted to drive the head frame to ascend and descend together, and the head frame can be independently lifted or levered backwards.

Description

Technical Field

[0001] The utility model relates to the technical field of local improvement design of medical beds, in particular to an examination bed with the head tilted back. Background Art

[0002] During the recuperation and nursing process, the patient needs to lie on a special hospital bed. In order to facilitate patients with limited mobility to lie on the bed, a height adjustment structure needs to be set on the hospital bed, and in order to facilitate the adjustment of the head tilt angle, a head adjustment structure is set at the head position. For example, for patients who have just undergone throat or esophageal surgery, in order to prevent the patient from swallowing a large amount of saliva into the throat and affecting wound healing, it is hoped that the patient will keep his head tilted back when resting. However, the angle adjustment structure of the headboard in the existing hospital bed is complicated, and it is not convenient to adjust the tilt angle of the headboard. The neck position is flush with the mattress, and it is not convenient to control the neck.

[0003] In the prior art, the patent with announcement number CN215779311U discloses a hospital bed that is convenient for patients to lean their heads back, comprising: a base, a servo motor is fixed to the right side of the base by screws, the output end of the servo motor is fixedly connected to a screw with opposite thread directions at the left and right ends, and an adjustment mechanism is arranged below the base; a bed board, the bed board is located above the base, the front and rear sides of the head board are welded with connecting rollers with a "T"-shaped structure in longitudinal section, and the right side of the head board is provided with a neck pillow slidably installed inside the bed board; a right mattress, the right mattress is located on the right side of the neck pillow; a left mattress, the left mattress is located on the left side of the neck pillow; a guardrail, the front and rear sides of the base are fixed with guardrails, and a walking wheel is installed below the base. The hospital bed that is convenient for patients to lean their heads back has a stable lifting structure, is convenient for adjusting the inclination angle of the head board, and uses the adjustment mechanism to conveniently lift the neck pillow to achieve control of the neck.

[0004] In the above technical solution, the height of the bed board is changed by driving the screw mechanism through the installed servo motor; the head board forms a rotating structure with the bed board through the connecting roller, the head board is rotated, and then the screw is inserted into the bed board through the screw hole inside the connecting roller to fix the tilt angle of the head board; the roller is meshed and connected with the lifting rod, and the roller is rotated clockwise, the lifting rod and the neck pillow rise, and when the patient's neck rests on the neck pillow, the patient's head naturally tilts downward and backward. Although the operation of the patient's head tilting backward can be realized, the overall structural design is relatively complicated, and it is necessary to manually rotate the corresponding components to complete the corresponding lifting or lifting action.

[0005] In order to solve one of the above problems, the present application provides an examination bed with the head tilted back. Utility Model Content

[0006] The utility model aims to solve the problems existing in the prior art and proposes an examination bed with the head tilted back. The back frame can be adjusted to drive the head frame to rise and fall together, and the head frame can also be lifted or tilted back alone. At the same time, the main bed frame can drive the back frame and the head frame to adjust the height synchronously.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an examination bed with head reclining, comprising a main bed frame with a main mattress installed, a back frame with a back mattress and a head frame with a head mattress fixed, the two ends of the back frame are respectively hinged to the main bed frame and the head frame, a chassis assembly is provided below the main bed frame, and also includes a first lifting mechanism, the first lifting mechanism includes a gas spring and a first driving assembly, the two ends of the gas spring are respectively hinged to the head frame and the back frame, the first driving assembly is rotatably installed below the main bed frame, and the first push rod of the first driving assembly is hinged to the back adjustment plate fixed below the back frame;

[0008] The second lifting mechanism includes two groups of second lifting components with the same structure arranged relatively to each other. The second lifting component includes a second driving component hingedly installed under the main bed frame. The second push rod of the second driving component is hinged to the transmission arm, and the transmission arm is fixed on the crank. The upper end of the crank is hinged to the main bed frame, and the lower end of the crank slides along the slide rail on the chassis component. The crank is also hinged to an adjusting arm, and the adjusting arm is hinged to the chassis component.

[0009] Furthermore, a support plate is fixed below the back frame as described above, one end of the gas spring is hingedly connected to the support plate, a control handle is provided below the head frame, and the piston rod end of the gas spring is connected to the rod of the control handle.

[0010] Furthermore, the first driving assembly as described above also includes a first motor, the end of which is hingedly mounted on an extension plate below the main bed frame, the end of the first push rod is hingedly connected to a back adjustment plate, one end of which is fixed to the bottom of the back frame.

[0011] Furthermore, the upper and lower ends of the crank as described above are respectively provided with an upper rotating shaft and a lower rotating shaft, one end of the transmission arm is fixed to the middle of the upper rotating shaft, the two ends of the upper rotating shaft are respectively hinged to the connecting plates, the connecting plates are fixed to the lower side of the main bed frame, and the two ends of the lower rotating shaft are respectively rotatably arranged in the slide rails of the chassis assembly.

[0012] Furthermore, the crank as described above also includes a box cover, which is composed of an upper cover and a lower cover that are buckled together and covers an upper rotating shaft and a lower rotating shaft. An adjusting arm is hinged on the side of the box cover, and one end of the adjusting arm is hingedly connected to the chassis assembly.

[0013] Furthermore, the box cover as described above is opened at the upper rotating shaft, and the upper rotating shaft is fixedly connected to the transmission arm at the opening.

[0014] Furthermore, the chassis assembly as described above includes a bottom bracket, a slide rail is installed on the side of the bottom bracket, and an adjustment arm is hinged on the bottom bracket.

[0015] Furthermore, the slide rail as described above is installed on the inner side of the bottom bracket, and bearing sleeves are respectively installed on both ends of the lower rotating shaft, and the bearing sleeves are slidably arranged in the slide groove of the slide rail.

[0016] Furthermore, casters are installed on the bottom bracket as described above, and brake components are installed on the casters.

[0017] Furthermore, the second driving assembly as described above also includes a second motor, the end of the first motor is hingedly mounted on a mounting plate below the main bed frame, and the end of the second push rod is hingedly mounted on a transmission arm.

[0018] Compared with the prior art, the beneficial effects of the utility model are: the device can adjust the back frame to drive the head frame to rise and fall together, and can also realize the head frame to be lifted or tilted back alone, and can also drive the back frame and the head frame to adjust the height synchronously through the main bed frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 It is the front view of the utility model;

[0021] Figure 3 for Figure 1 The schematic diagram omitting the mattress;

[0022] Figure 4 This is a schematic diagram of the first lifting mechanism of the utility model;

[0023] Figure 5 This is a schematic diagram of the second lifting mechanism of the utility model;

[0024] Figure 6 for Figure 5 main view.

[0025] In the figure: 11. main mattress; 12. back mattress; 13. head mattress; 21. main bed frame; 211. mounting plate; 212. connecting plate; 22. back frame; 221. supporting plate; 23. head frame; 231. control handle; 3. first lifting mechanism; 31. gas spring; 32. back adjustment plate; 33. first motor; 4. second lifting assembly; 41. second motor; 42. transmission arm; 43. crank; 44. adjustment arm; 5. chassis assembly; 51. slide rail; 52. bottom bracket; 53. caster. DETAILED DESCRIPTION

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected", "set", etc. should be understood in a broad sense. For example, when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be a central element. When an element is considered to be "installed on" another element, it can be directly installed on the other element or there can be a central element. When an element is considered to be "connected" to another element, 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 an indirect connection through an intermediate medium, or it can be a communication between the two elements.

[0028] For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0030] Embodiment 1

[0031] Reference Figure 1-6As shown, the utility model is an examination bed with head reclining, comprising a main bed frame 21 with a main mattress 11 installed, a back frame 22 with a back mattress 12, and a head frame 23 with a head mattress 13 fixed, the two ends of the back frame 22 are respectively hinged to the main bed frame 21 and the head frame 23, a chassis assembly 5 is provided below the main bed frame 21 to play a supporting role, and also includes a first lifting mechanism 3, the first lifting mechanism 3 includes a gas spring 31 and a first drive assembly, the two ends of the gas spring 31 are respectively hinged to the head frame 23 and the back frame 22, and the first drive assembly is rotatably installed below the main bed frame 21 , the first push rod of the first driving assembly is hinged to the back adjustment plate 32 fixed under the back frame 22; the second lifting mechanism, the second lifting mechanism includes two groups of second lifting assemblies 4 with the same structure arranged relatively, the second lifting assembly 4 includes a second driving assembly hingedly installed under the main bed frame 21, the second push rod of the second driving assembly is hinged to the transmission arm 42, the transmission arm 42 is fixed on the crank 43, the upper end of the crank 43 is hinged to the main bed frame 21, the lower end of the crank 43 slides along the slide rail 51 on the chassis assembly 5, the crank 43 is also hinged to the adjustment arm 44, and the adjustment arm 44 is hinged to the chassis assembly 5.

[0032] The working principle of the device of the utility model is that when the gas spring 31 extends outward to work, it drives the head frame 23 to rotate counterclockwise around the axis hinged with the back frame 22, so that the head mattress 13 is raised; conversely, when the gas spring 31 retracts inward to work, it drives the head frame 23 to rotate clockwise around the axis hinged with the back frame 22, so that the height of the head mattress 13 is lowered. When the first driving component drives the first push rod to extend outward to work, it drives the back frame 22 to rotate counterclockwise around the axis hinged with the main bed frame 21, so that the back mattress 12 is raised; conversely, when the first driving component drives the first push rod to retract inward to work, it drives the back frame 22 to rotate clockwise around the axis hinged with the main bed frame 21, so that the back mattress 12 is lowered. When the two groups of second driving components synchronously drive the corresponding second push rods to extend outward for work, they respectively drive the transmission arm 42 to rotate downward around the axis at which the crank 43 and the main bed frame 21 are hinged. Since the transmission arm 42 and the crank 43 are fixed together as a whole, they can only be straightened vertically due to the hinge structure below the main bed frame 21. In addition, the slide rail 51 on the chassis assembly 5 allows the lower end of the crank 43 to slide smoothly, and combined with the limiting effect of the adjusting arm 44, the height of the main bed frame 21 is increased; conversely, when the two groups of second driving components synchronously drive the corresponding second push rods to retract inward for work, they respectively drive the transmission arm 42 to rotate upward around the axis at which the crank 43 and the main bed frame 21 are hinged. Since the transmission arm 42 and the crank 43 are fixed together as a whole, they can only be tilted due to the hinge structure below the main bed frame 21. In addition, the slide rail 51 on the chassis assembly 5 allows the lower end of the crank 43 to slide smoothly, and combined with the limiting effect of the adjusting arm 44, the height of the main bed frame 21 is reduced.

[0033] Embodiment 2

[0034] Reference Figure 1-6 As shown, based on the technical solution of the first embodiment, an examination bed with head tilted back is provided. For the specific structural design of the first lifting mechanism 3, a support sheet 221 is fixed under the back frame 22, and one end of the gas spring 31 is hingedly connected to the support sheet 221. Specifically, as shown in FIG. Figure 4 As shown, the support sheet is provided with two through holes, a pivot is installed in the through hole, one end of the gas spring 31 is opened and sleeved on the pivot, a control handle 231 is provided below the head frame 23, the piston rod end of the gas spring 31 is connected to the rod of the control handle 231, and the two ends of the control handle 231 extend outward from the head mattress 13 respectively, and the lifting action of the head mattress 13 can be conveniently adjusted by holding the two ends of the control handle 231. Further, the first driving assembly also includes a first motor 33, the end of the first motor 33 is hingedly installed on the extension plate below the main bed frame 21, the end of the first push rod is hingedly connected to the back adjustment plate 32, one end of the back adjustment plate 32 is fixed to the bottom of the back frame 22, similarly, the extension plate is provided with two through holes, a pin is provided in the through hole, the end of the first motor 33 is opened and sleeved on the pin, there is only one back adjustment plate 32, the end of the first push rod is slotted to clamp the back adjustment plate 32, and connected with a pin.

[0035] Embodiment 3

[0036] Reference Figure 1-6 As shown, based on the technical solution of the first embodiment, an examination bed with head tilting back is provided. For the specific structural design of the second lifting mechanism, the upper and lower ends of the crank 43 are respectively provided with an upper shaft and a lower shaft, one end of the transmission arm 42 is fixed to the middle of the upper shaft, the two ends of the upper shaft are respectively hinged to the connecting plate 212, the connecting plate 212 is fixed to the lower side of the main bed frame 21, and the two ends of the lower shaft are respectively rotatably arranged in the slide rail 51 of the chassis assembly 5. Further, as Figure 5 and Figure 6 As shown, the crank 43 also includes a box cover, which is composed of an upper cover and a lower cover that are buckled together and are covered with an upper rotating shaft and a lower rotating shaft. An adjusting arm 44 is hingedly connected to the side of the box cover, and one end of the adjusting arm 44 is hingedly connected to the chassis component 5. In addition, in order to ensure the structural strength of the entire crank 43, the upper rotating shaft and the lower rotating shaft can also be connected by a connecting shaft, and the two ends of a single connecting shaft are respectively fixedly connected to the upper rotating shaft and the lower rotating shaft, and two connecting shafts are respectively fixedly connected to the upper rotating shaft and the lower rotating shaft, wherein the two connecting shafts can be arranged side by side or crosswise.

[0037] Furthermore, the box cover is opened at the upper rotating shaft, and the upper rotating shaft is fixedly connected to the transmission arm 42 at the opening, and a space is reserved for the fixed connection between the transmission arm 42 and the upper rotating shaft, such as welding and fixing together. In addition, the chassis assembly 5 includes a bottom bracket 52, and a slide rail 51 is installed on the side of the bottom bracket 52, and the adjustment arm 44 is hinged on the bottom bracket 52. Specifically, the slide rail 51 is installed on the inner side of the bottom bracket 52, and bearing sleeves are installed at both ends of the lower rotating shaft respectively, and the bearing sleeves are slidably arranged in the slide groove of the slide rail 51, so that the two ends of the lower rotating shaft and the slide rail 51 are rolling friction, and the operation of each component is stable and efficient.

[0038] Furthermore, the bottom bracket 52 is also equipped with casters 53, and brake components are installed on the casters 53. The bottom bracket 52 is a rectangular frame structure, and four casters 53 are respectively installed below the four ends of the bottom bracket 52. Four or two brake components can be installed, and the brake action of the other two casters 53 can be controlled in combination with the brake lever. Further, the second drive assembly also includes a second motor 41, and the end of the first motor 33 is hingedly installed on the mounting plate 211 below the main bed frame 21, and the end of the second push rod is hingedly connected to the transmission arm 42. The mounting plate 211 is provided with two through holes and processed with a rotating shaft, and the through hole is provided with a rotating shaft, and the end of the second motor 41 is opened and sleeved on the rotating shaft, and the transmission arm 42 is provided with two through holes and processed with a through hole, and the end of the second push rod is opened and connected to the through hole on the transmission arm 42 by a rotating shaft.

[0039] The drive assembly uses an electric push rod, also known as a linear drive, which is a new type of linear actuator mainly composed of a motor, a push rod and a control device. The electric push rod is an electric drive device that converts the rotational motion of the motor into the linear reciprocating motion of the push rod. After the motor is reduced by gears or worm gears, it drives a pair of screw nuts to work, thereby converting the rotational motion of the motor into linear motion, and the push rod action is completed by the forward and reverse rotation of the motor. Gas spring 31 (gas spring) is an industrial accessory that can perform functions such as support, buffering, braking, height adjustment and angle adjustment.

[0040] The standard parts used in the device of the utility model can all be purchased from the market. The assembly and matching relationship of the various components involved, the motor, the gas spring 31, the electric push rod and its supporting control software are existing technologies or materials. The relevant technical personnel can directly purchase or customize them from the market according to the required product models and specifications.

[0041] The electrical components mentioned in the text are all connected to an external main controller and 220V mains or industrial electricity, and the main controller can be a conventional known device such as a computer that plays a control role.

[0042] The above is only a preferred specific embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described too much here. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above-mentioned embodiment, and the utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiment should be regarded as exemplary and non-restrictive. Any technician familiar with the technical field within the technical scope disclosed by the utility model, according to the technical scheme of the utility model and its utility model concept, shall be covered within the protection scope of the utility model.

Claims

1. An examination bed with head tilted back, comprising a main bed frame (21) with a main mattress (11) installed, a back frame (22) with a back mattress (12) and a head frame (23) with a head mattress (13) fixed, the two ends of the back frame (22) being hinged to the main bed frame (21) and the head frame (23) respectively, a chassis assembly (5) being provided below the main bed frame (21), characterized in that: The bed also includes a first lifting mechanism (3), the first lifting mechanism (3) including a gas spring (31) and a first driving assembly, the two ends of the gas spring (31) are respectively hinged to the head frame (23) and the back frame (22), the first driving assembly is rotatably installed below the main bed frame (21), and the first push rod of the first driving assembly is hinged to the back adjustment plate (32) fixed below the back frame (22); A second lifting mechanism, the second lifting mechanism comprises two sets of second lifting components (4) with the same structure arranged opposite to each other, the second lifting component (4) comprises a second driving component hingedly mounted below the main bed frame (21), a second push rod of the second driving component is hingedly connected to a transmission arm (42), the transmission arm (42) is fixed on a crank (43), the upper end of the crank (43) is hingedly connected to the main bed frame (21), the lower end of the crank (43) slides along a slide rail (51) on the chassis component (5), the crank (43) is also hingedly connected to an adjusting arm (44), and the adjusting arm (44) is hingedly connected to the chassis component (5).

2. The examination bed with head tiltable back according to claim 1, characterized in that: A support plate (221) is fixed below the back frame (22), one end of the gas spring (31) is hingedly connected to the support plate (221), a control handle (231) is provided below the head frame (23), and the piston rod end of the gas spring (31) is connected to the rod of the control handle (231).

3. The examination bed with head tiltable back according to claim 2, characterized in that: The first driving assembly further comprises a first motor (33), the end of the first motor (33) being hingedly mounted on an extension plate below the main bed frame (21), the end of the first push rod being hingedly connected to a back adjustment plate (32), one end of the back adjustment plate (32) being fixed to the bottom of the back frame (22).

4. The examination bed with head tiltable back according to claim 1, characterized in that: The crank (43) is provided with an upper rotating shaft and a lower rotating shaft at the upper and lower ends respectively, one end of the transmission arm (42) is fixed to the middle of the upper rotating shaft, the two ends of the upper rotating shaft are respectively hinged to the connecting plates (212), the connecting plates (212) are fixed to the lower side of the main bed frame (21), and the two ends of the lower rotating shaft are respectively rotatably arranged in the slide rails (51) of the chassis assembly (5).

5. The examination bed with head tiltable back according to claim 4, characterized in that: The crank (43) further comprises a box cover, which is composed of an upper cover and a lower cover that are buckled together and covers an upper rotating shaft and a lower rotating shaft. An adjusting arm (44) is hingedly connected to the side of the box cover, and one end of the adjusting arm (44) is hingedly connected to the chassis assembly (5).

6. The examination bed with head tiltable back according to claim 5, characterized in that: The box cover is opened at the upper rotating shaft, and the upper rotating shaft is fixedly connected to the transmission arm (42) at the opening.

7. The examination bed with head tiltable back according to claim 6, characterized in that: The chassis assembly (5) comprises a bottom bracket (52), a slide rail (51) is installed on the side of the bottom bracket (52), and an adjustment arm (44) is hinged on the bottom bracket (52).

8. The examination bed with head tiltable back according to claim 7, characterized in that: The slide rail (51) is installed on the inner side of the bottom bracket (52), and bearing sleeves are installed at both ends of the lower rotating shaft respectively, and the bearing sleeves are slidably arranged in the slide groove of the slide rail (51).

9. The examination bed with head tiltable back according to claim 8, characterized in that: The bottom bracket (52) is also provided with a caster (53), and a brake component is installed on the caster (53).

10. The examination bed with head tiltable backward according to any one of claims 1 to 9, characterized in that: The second driving assembly also includes a second motor (41), the end of the first motor (33) is hingedly mounted on a mounting plate (211) below the main bed frame (21), and the end of the second push rod is hingedly mounted on a transmission arm (42).

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