Hand-operated lifting structure of sickbed

Abstract

The utility model relates to the technical field of medical equipment, and discloses a sickbed hand-operated lifting structure which comprises a first bed board and a second bed board hinged to the end of the first bed board, two supports are fixedly connected to the outer wall of the bottom of the first bed board, and fixing plates are fixedly connected to the outer walls of the sides, facing the second bed board, of the two supports; the medical bed has the advantages that the structure is simple, the cost is low, medical personnel can drive the lifting mechanism to realize the lifting and descending of the second bed plate only by shaking the crank, the operation is convenient, the lifting mechanism does not need to be supported by a complicated electric or hydraulic system, and the maintenance is simple and convenient.

Description

Technical Field

[0001] The present application relates to the technical field of medical equipment, and in particular, to a manual lifting structure for a hospital bed. Background Art

[0002] With the continuous development of medical technology, medical equipment is also constantly updated. As an important part of medical equipment, the design and function of hospital beds are also constantly improved. However, most of the existing hospital bed lifting structures adopt electric or hydraulic drive. Although this structure has a fast lifting speed, it has the defects of high cost and complex maintenance. Therefore, a manual lifting structure for a hospital bed is proposed to solve the above problems.

[0003] The above information disclosed in this background art is only used to increase the understanding of the background art of the present application. Therefore, it may include prior art that is not known to those of ordinary skill in the art. Utility Model Content

[0004] In order to solve the problem that most of the existing hospital bed lifting structures adopt electric or hydraulic drive, although this structure has a fast lifting speed, it has the problems of high cost and complex maintenance, the present application provides a manual lifting structure for a hospital bed.

[0005] The manual lifting structure for a hospital bed provided by the present application adopts the following technical solutions:

[0006] A manual lifting structure for a hospital bed includes a first bed board and a second bed board hinged to the end of the first bed board. Two brackets are fixedly connected to the outer wall of the bottom of the first bed board. Fixing plates are fixedly connected to the outer walls of the two brackets facing the second bed board. A lifting mechanism is installed on the top outer wall of the fixing plate.

[0007] The lifting mechanism includes a base fixedly connected to the top outer wall of the fixing plate. A worm gear is rotatably connected to the middle inner wall of the base through a rotating shaft. Both ends of the rotating shaft penetrate through the base and are fixedly connected to a movable frame. The top end of the movable frame is fixedly connected to a cross bar. Rubber wheels are rotatably connected to both ends of the cross bar. A worm is rotatably connected to the top outer wall of the fixing plate through two shaft seats. The worm meshes with the worm gear.

[0008] Preferably, two rubber strips are fixedly connected to the outer wall of the bottom of the second bed board. The two rubber wheels are correspondingly attached to the two rubber strips.

[0009] Preferably, a plurality of bushing frames are fixedly connected to the opposite outer walls of the two brackets. A connecting rod is rotatably connected to the inner walls of the plurality of bushing frames. One end of the connecting rod is fixedly connected to one end of the worm. The other end of the connecting rod is fixedly connected to a crank.

[0010] Preferably, limiting frames are fixedly connected to the outer walls on both sides of the base, and the limiting frames are designed in an "L" shape.

[0011] Preferably, two guardrails are fixedly connected to the top outer wall of the first bed board.

[0012] In summary, the present application includes the following beneficial technical effects:

[0013] The utility model has a simple structure and low cost. Medical staff only need to shake the crank to drive the lifting mechanism to realize the lifting and lowering of the second bed board, which is convenient to operate. Moreover, the lifting mechanism does not require a complex electrical or hydraulic system for support, and is simple and convenient to maintain;

[0014] The utility model is applicable to various types of hospital beds, including ordinary hospital beds, nursing beds, etc. At the same time, due to the use of a hand-cranked drive method, no external power supply or gas source is required, and it is suitable for use under various environmental conditions. Description of the Drawings

[0015] Figure 1 is an overall schematic diagram of an embodiment of the application;

[0016] Figure 2 is a three-dimensional schematic diagram of an embodiment of the application;

[0017] Figure 3 is a partial structural cross-sectional view of an embodiment of the application.

[0018] Description of the reference numerals: 1, the first bed board; 2, the second bed board; 3, the bracket; 4, the fixed plate; 5, the base; 6, the rotating shaft; 7, the worm gear; 8, the shaft seat; 9, the worm; 10, the shaft sleeve frame; 11, the connecting rod; 12, the crank; 13, the movable frame; 14, the cross bar; 15, the rubber wheel; 16, the limiting frame; 17, the guardrail; 18, the rubber strip. Detailed Description of the Invention

[0019] The following further describes the present application in detail with reference to the Figures 1-3 drawings.

[0020] The embodiment of the present application discloses a hand-cranked lifting structure for a hospital bed. Referring to Figures 1-3 , a hand-cranked lifting structure for a hospital bed includes a first bed board 1 and a second bed board 2 hinged to the end of the first bed board 1. Two brackets 3 are fixedly connected to the bottom outer wall of the first bed board 1, and fixed plates 4 are fixedly connected to the outer walls of the two brackets 3 facing the second bed board 2. A lifting mechanism is installed on the top outer wall of the fixed plate 4;

[0021] The lifting mechanism includes a base 5 fixedly connected to the outer wall of the top of the fixed plate 4. A worm gear 7 is rotatably connected to the inner wall of the middle of the base 5 through a rotating shaft 6. Both ends of the rotating shaft 6 penetrate through the base 5 and are fixedly connected to a movable frame 13. The top end of the movable frame 13 is fixedly connected to a cross bar 14. Both ends of the cross bar 14 are rotatably connected to rubber wheels 15. A worm 9 is rotatably connected to the outer wall of the top of the fixed plate 4 through two shaft seats 8. The worm 9 meshes with the worm gear 7.

[0022] Two rubber strips 18 are fixedly connected to the outer wall of the bottom of the second bed plate 2. The two rubber wheels 15 correspond to and are in contact with the two rubber strips 18. The contact between the rubber strip 18 and the rubber wheel 15 prevents the rubber wheel 15 from directly and rigidly contacting the second bed plate 2, reducing wear and extending the service life.

[0023] A plurality of bushing frames 10 are fixedly connected to the opposite outer walls of the two brackets 3. A connecting rod 11 is rotatably connected to the inner walls of the plurality of bushing frames 10. One end of the connecting rod 11 is fixedly connected to one end of the worm 9, and the other end of the connecting rod 11 is fixedly connected to a crank 12.

[0024] Limit frames 16 are fixedly connected to the outer walls on both sides of the base 5. The limit frames 16 are designed in an "L" shape. When the upward vertical outer wall of the limit frame 16 is in parallel contact with the movable frame 13, it can limit the movable frame 13, so that when the movable frame 13 rotates to the upward vertical position, it stops rotating, and thus the lifting angle of the second bed plate 2 is limited to 90 degrees.

[0025] Two guardrails 17 are fixedly connected to the outer wall of the top of the first bed plate 1. The two guardrails 17 play a protective role for the patients lying on the first bed plate 1, preventing the patients from falling off the first bed plate 1.

[0026] The implementation principle of the hand-cranked lifting structure of a hospital bed in the embodiment of the present application is as follows: When in use, the medical staff manually rotate the crank 12. The crank 12 drives the connecting rod 11 to rotate within the plurality of bushing frames 10. The other end of the connecting rod 11 then drives the worm 9 to rotate inside the two shaft seats 8. At this time, the worm 9 drives the worm gear 7 meshing with it to rotate. When the worm gear 7 rotates clockwise, it drives the movable frame 13 to rotate through the rotating shaft 6. The movable frame 13 rotates clockwise around the rotating shaft 6. At this time, the cross bar 14 at the top end of the movable frame 13 drives the two rubber wheels 15 to roll on the two rubber strips 18 at the bottom of the second bed plate 2. The two rubber wheels 15 will roll away from the first bed plate 1, causing the end of the second bed plate 2 to rotate around the first bed plate 1, and the second bed plate 2 will descend;

[0027] When the worm wheel 7 rotates counterclockwise, it drives the movable frame 13 to rotate through the rotating shaft 6. The movable frame 13 rotates counterclockwise around the rotating shaft 6. At this time, the two rubber wheels 15 will approach the first bedplate 1 and roll, causing the end of the second bedplate 2 to rotate around the first bedplate 1. Then the second bedplate 2 is lifted by the rubber wheels 15, thus realizing the lifting and lowering of the second bedplate 2;

[0028] It should be noted that when the medical staff stops rotating the crank 12, the worm 9 stops rotating. Due to the self-locking characteristic of the meshing between the worm 9 and the worm wheel 7, when the medical staff stops rotating the crank 12, the movable frame 13 can be fixed, and thus the lifting angle of the second bedplate 2 is fixed.

[0029] Finally, several points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or the communication inside two components. It can be directly connected. The terms "up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change;

[0030] Second: In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0031] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. 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.

[0032] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A hand-cranked lifting structure for a hospital bed, comprising a first bed board (1) and a second bed board (2) hinged to the end of the first bed board (1), characterized in that: The bottom outer wall of the first bed board (1) is fixedly connected to two brackets (3), the outer wall of one side of the two brackets (3) facing the second bed board (2) is fixedly connected to a fixing plate (4), and the top outer wall of the fixing plate (4) is installed with a lifting mechanism; The lifting mechanism comprises a base (5) fixedly connected to the top outer wall of the fixed plate (4); the middle inner wall of the base (5) is rotatably connected to a worm gear (7) via a rotating shaft (6); both ends of the rotating shaft (6) pass through the base (5) and are fixedly connected to a movable frame (13); the top of the movable frame (13) is fixedly connected to a cross bar (14); both ends of the cross bar (14) are rotatably connected to rubber wheels (15); the top outer wall of the fixed plate (4) is rotatably connected to a worm (9) via two shaft seats (8); and the worm (9) is meshed with the worm gear (7).

2. The hand-cranked lifting structure of a hospital bed according to claim 1, characterized in that: Two rubber strips (18) are fixedly connected to the bottom outer wall of the second bed board (2), and the two rubber wheels (15) are correspondingly fitted to the two rubber strips (18).

3. The hand-cranked lifting structure of a hospital bed according to claim 1, characterized in that: A plurality of shaft sleeve frames (10) are fixedly connected to the opposite outer walls of the two brackets (3), and a connecting rod (11) is rotatably connected to the inner walls of the plurality of shaft sleeve frames (10), one end of the connecting rod (11) is fixedly connected to one end of the worm (9), and the other end of the connecting rod (11) is fixedly connected to a crank (12).

4. The hand-cranked lifting structure of a hospital bed according to claim 1, characterized in that: The outer walls on both sides of the base (5) are fixedly connected to a limiting frame (16), and the limiting frame (16) is designed to be "L" shaped.

5. The hand-cranked lifting structure of a hospital bed according to claim 1, characterized in that: Two guardrails (17) are fixedly connected to the top outer wall of the first bed board (1).

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