Bed body equipment with greatly-contracted bed body structure

Abstract

The invention relates to the technical field of bed body equipment, and discloses bed body equipment with a greatly-contractible bed body structure, which comprises a bed body main frame, one end of the length direction of the bed body main frame is movably assembled with a movable head frame capable of stretching along the length direction of the main frame, and the other end of the length direction of the bed body main frame is movably assembled with a movable tail frame; a bed tail combination plate is detachably connected to the movable head frame, a bed tail movable assembly is hinged to the movable tail frame, a back raising mechanism is assembled in the middle area of the bed body main frame, and the back raising mechanism is assembled in the middle area of the bed body main frame through the telescopic action of the movable head frame and the movable tail frame in cooperation with detachable splicing of the bed tail combination plate and folding and folding of the bed tail movable assembly and the side guardrail assemblies. The whole size of the bed body is greatly reduced, a complex disassembly and assembly process is not needed, the problem that an existing bed body difficultly enters and exits a narrow passageway or space is effectively solved, operation is easy, manpower and time are saved, and limitation of bed body use scenes is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bed body equipment, in particular to a bed body equipment with a large-scale retractable bed body structure. BACKGROUND

[0002] In the bed scene of nursing, rehabilitation and medical treatment, there is often a need for bed transfer. In the prior art, the overall size of the bed is retracted in the form of a folding structure, a telescopic structure and a detachable structure. The folding structure is simple in structure, low in cost and easy to operate, and the folded form is regular; the telescopic structure is smooth in extension and retraction, high in retraction ratio, and good in rigidity after expansion; the detachable structure is small in size after disassembly, and is convenient for transportation and maintenance. These technologies help to achieve bed transfer to a certain extent, but there are still significant limitations in size adaptability, especially for residential elevators, ordinary doors and narrow passages, and bed body passability is still a problem.

[0003] The existing various folding and retracting bed body frame structures have different defects: the folding structure and the telescopic structure are limited to the retraction of partial structures such as bed plates and guardrails, and the overall size of the bed body is not sufficiently reduced; the detachable structure is easy to damage or lose connecting parts during disassembly and assembly, and in most cases cannot be quickly switched, and the disassembly and assembly of complex structures increase the labor consumption and time cost. The key existing technology is that the bed cannot easily enter and exit narrow passages or spaces, which brings inconvenience to the user and limits the use of the bed. SUMMARY

[0004] The overall size of the existing bed body structure is not sufficiently retracted, the detachable structure is easy to damage the parts or lose the connecting parts during disassembly and assembly, and the switching efficiency is low, the labor and time cost is high, and at the same time the bed body has poor passability in narrow spaces such as residential elevators, ordinary doors and narrow passages, which brings inconvenience to the user.

[0005] The bed body equipment with a large-scale retractable bed body structure provided by the present application adopts the following technical scheme:

[0006] The bed body equipment with a large-scale retractable bed body structure comprises a bed body main frame, an active head frame which is movably assembled at one end of the bed body main frame and can be extended and retracted along the length direction of the main frame, and an active tail frame which is movably assembled at the other end of the bed body main frame, a bed tail combined plate which is detachably connected to the active head frame, a bed tail active assembly which is hingedly connected to the active tail frame, a backrest raising mechanism which is assembled in the middle region of the bed body main frame, a side guardrail assembly which is rotatably connected to the upper side of the backrest raising mechanism, and a folding mechanism which is arranged between the bed body main frame and the backrest raising mechanism.

[0007] Preferably, both ends of the bed body main frame are provided with frame fixing members, one side of the frame fixing member is hingedly connected with a movable head frame, the top of the movable head frame is provided with a backboard, the end of the bed body main frame away from the frame fixing member is provided with a locking pin, one side of the locking pin is hingedly connected with a movable tail frame, and the top of the movable tail frame is provided with a positioning support column.

[0008] Preferably, the bed tail combination plate comprises a left bed tail plate body and a right bed tail plate body, the opposite ends of the left bed tail plate body and the right bed tail plate body are provided with splicing bosses, the right bed tail plate body is provided with a bed tail plate splicing lock buckle, and the left bed tail plate body and the right bed tail plate body are detachably spliced through the bed tail plate splicing lock buckle; the back of the left bed tail plate body and the right bed tail plate body is provided with a bed tail plate mounting bracket, and the bed tail plate mounting bracket is matched with the positioning support column.

[0009] Preferably, the bed tail movable assembly comprises a lifting drive cylinder, one end of the lifting drive cylinder is fixedly connected with the bed body main frame, the other end of the lifting drive cylinder is fixedly connected with a connecting block, one end of the connecting block is fixedly connected with an auxiliary support foot, the other end of the auxiliary support foot is fixedly connected with a foot plate, the two sides of the foot plate are hingedly connected with foot side plates, one end of the foot plate is hingedly connected with a foot landing parallel link, the foot landing parallel link is hingedly connected with the bed body main frame, one end of the foot plate is hingedly connected with a leg plate, the two sides of the leg plate are hingedly connected with leg side plates, and the bottom of the foot plate is fixedly connected with a bed plate support column.

[0010] Preferably, the side guardrail assembly comprises guardrail rotating shafts fixed on the two sides of the bed body main frame, upper rotating arms and lower rotating arms are hingedly connected on the guardrail rotating shafts, the upper rotating arms and the lower rotating arms are vertically arranged, and the ends, away from the guardrail rotating shafts, of the upper rotating arms and the lower rotating arms are commonly hingedly connected with the bed body main frame.

[0011] Preferably, the back lifting mechanism comprises a back lifting cylinder fixed in the middle of the bed body main frame, a transmission link is hingedly connected to the output end of the back lifting cylinder, a bed plate adjusting link is fixedly connected to the other end of the transmission link, a first driving arm and a second driving arm are respectively hingedly connected to the two ends of the bed plate adjusting link, the first driving arm and the second driving arm are symmetrically arranged, a back plate is fixedly connected to the top of the first driving arm and the second driving arm, back side plates are arranged on the two sides of the back plate, and the back side plates are located above the bed body main frame.

[0012] Preferably, the first driving arm and the second driving arm are in V shape, and the corners of the first driving arm and the second driving arm are fixedly connected through reinforcing ribs, and the bed plate adjusting link and the back plate are detachably connected through bolts.

[0013] Preferably, the folding mechanism is used for assisting the movable head frame to perform a folding action relative to the bed body main frame.

[0014] In summary, the present application includes the following beneficial technical effects:

[0015] 1. Through the telescopic action of the movable head frame and the movable tail frame, the detachable splicing of the bed tail combination plate, and the folding of the bed tail movable assembly and the side guardrail assembly, the overall size of the bed body is greatly reduced, without complex disassembly and assembly process, effectively solving the problem that the existing bed body is difficult to enter and exit narrow passageways or spaces, simple operation and saving of manpower and time, reducing the limitation of the bed body use scene.

[0016] 2. The back lifting mechanism can meet the comfortable back lifting demand, the side guardrail assembly can provide safety protection, and each functional assembly does not occupy additional space after folding, which not only guarantees the comfort and safety during use, but also can be quickly switched to the retracted state, significantly improving the practicality and flexible adaptability of the bed body. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present application.

[0018] Figure 2 is a schematic diagram of the side structure of the present application.

[0019] Figure 3 is a schematic diagram of the bed tail movable assembly structure of the present application.

[0020] Figure 4 is a schematic diagram of the side guardrail assembly structure of the present application.

[0021] Figure 5 is a schematic diagram of the bed body main frame structure of the present application.

[0022] Figure 6 is a schematic diagram of the bed tail combination plate structure of the present application.

[0023] Figure 7 is a schematic diagram of the back lifting mechanism structure of the present application.

[0024] Explanation of reference signs: 1, bed body main frame; 101, locking pin; 102, movable tail frame; 103, positioning support column; 104, frame fixing piece; 105, movable head frame; 2, bed tail movable assembly; 201, lifting drive cylinder; 202, connecting block; 203, auxiliary support foot; 204, foot plate; 2041, foot side plate; 205, foot landing parallel link; 206, leg plate; 2061, leg side plate; 207, bed plate support column; 3, bed tail combination plate; 301, left bed tail plate body; 302, right bed tail plate body; 303, bed tail plate splicing lock catch; 304, bed tail plate mounting bracket; 4, side guardrail assembly; 401, guardrail rotating shaft; 402, upper rotating arm; 403, lower rotating arm; 5, back lifting mechanism; 501, back lifting cylinder; 502, transmission connecting rod; 503, bed plate adjusting connecting rod; 504, first drive arm; 505, second drive arm; 506, back lifting side plate; 507, back lifting plate; 6, folding mechanism. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] Reference Figures 1-7 The present application provides a bed body device with a large-scale retractable bed body structure, comprising a bed body main frame 1, a movable head frame 105 which can be extended and retracted along the length direction of the main frame is movably assembled at one end of the bed body main frame 1 in the length direction, a movable tail frame 102 is movably assembled at the other end of the bed body main frame 1, a bed tail combination plate 3 is detachably connected to the movable head frame 105, a bed tail movable assembly 2 is hinged to the movable tail frame 102, a back lifting mechanism 5 is assembled in the middle region of the bed body main frame 1, a side guardrail assembly 4 is rotatably connected above the back lifting mechanism 5 at the bottom of the bed body main frame 1, and a folding mechanism 6 is further arranged between the bed body main frame 1 and the back lifting mechanism 5.

[0027] The bed body main frame 1 is a core support structure, the movable head frame 105 can be telescoped along the length direction of the bed body main frame 1, the movable tail frame 102 is also movable along the length direction of the bed body main frame 1, the bed tail combination plate 3 is detachably connected to the movable head frame 105, the bed tail movable assembly 2 is hinged to the movable tail frame 102, the backrest mechanism 5 is assembled in the middle region of the bed body main frame 1, the side guardrail assembly 4 is rotationally connected to the bottom of the bed body main frame 1 and corresponds to the position above the backrest mechanism 5, and the folding mechanism 6 is arranged between the bed body main frame 1 and the backrest mechanism 5; when the bed body needs to be retracted, the movable head frame 105 is retracted towards the bed body main frame 1, the movable tail frame 102 is synchronously retracted towards the bed body main frame 1, the bed tail combination plate 3 is folded with the movable head frame 105 after being detached, the bed tail movable assembly 2 is folded and attached to the movable tail frame 102, the side guardrail assembly 4 is rotated and folded towards the bed body main frame 1, and the folding mechanism 6 assists the folding of the movable head frame 105 relative to the bed body main frame 1, so that the overall size of the bed body is greatly reduced.

[0028] In a preferred embodiment, the bed body main frame 1 is provided with a frame fixing piece 104 at both ends, one side of the frame fixing piece 104 is hinged with a movable head frame 105, the top of the movable head frame 105 is provided with a backrest plate 507, one end of the bed body main frame 1 away from the frame fixing piece 104 is provided with a locking pin 101, one side of the locking pin 101 is hinged with a movable tail frame 102, and the top of the movable tail frame 102 is provided with a positioning support column 103.

[0029] The bed body main frame 1 is provided with a frame fixing piece 104 at both ends, the movable head frame 105 is hinged to one side of the frame fixing piece 104, the backrest plate 507 is mounted on the top of the movable head frame 105, the locking pin 101 is arranged at one end of the bed body main frame 1 away from the frame fixing piece 104, the movable tail frame 102 is hinged to one side of the locking pin 101, and the positioning support column 103 is arranged on the top of the movable tail frame 102; when retracted, the movable head frame 105 is folded towards the bed body main frame 1 around the frame fixing piece 104, the backrest plate 507 is folded with the movable head frame 105, and the movable tail frame 102 is folded towards the bed body main frame 1 around the locking pin 101.

[0030] In a preferred embodiment, the bed tail combination plate 3 comprises a left bed tail plate body 301 and a right bed tail plate body 302, the opposite ends of the left bed tail plate body 301 and the right bed tail plate body 302 are provided with splicing bosses, the right bed tail plate body 302 is assembled with a bed tail plate splicing lock buckle 303, and the left bed tail plate body 301 and the right bed tail plate body 302 are detachably spliced through the bed tail plate splicing lock buckle 303; the back of the left bed tail plate body 301 and the right bed tail plate body 302 is provided with a bed tail plate mounting bracket 304, and the bed tail plate mounting bracket 304 is matched with the positioning support column 103.

[0031] The bed tail combination plate 3 is composed of a left bed tail plate body 301 and a right bed tail plate body 302, the opposite ends of the left bed tail plate body 301 and the right bed tail plate body 302 are provided with splicing bosses, a bed tail plate splicing lock buckle 303 is assembled on the right bed tail plate body 302, after the left bed tail plate body 301 and the right bed tail plate body 302 are aligned through the splicing bosses, the bed tail plate splicing lock buckle 303 is used to realize detachable splicing; the bed tail plate mounting brackets 304 are arranged on the back of the left bed tail plate body 301 and the right bed tail plate body 302, the bed tail plate mounting brackets 304 are adapted with the positioning support columns 103, the detachable connection of the bed tail combination plate 3 and the movable tail frame 102 is realized; when folding, the bed tail plate splicing lock buckle 303 is unfastened, the left bed tail plate body 301 and the right bed tail plate body 302 are separated, and then the separated bed tail plate body is folded together with the movable tail frame 102 through the cooperation of the bed tail plate mounting brackets 304 and the positioning support columns 103.

[0032] In a preferred embodiment, the bed tail movable assembly 2 comprises a lifting drive cylinder 201, one end of the lifting drive cylinder 201 is fixedly connected with the bed body main frame 1, the other end of the lifting drive cylinder 201 is fixedly connected with a connecting block 202, one end of the connecting block 202 is fixedly connected with an auxiliary support foot 203, the other end of the auxiliary support foot 203 is fixedly connected with a foot plate 204, both sides of the foot plate 204 are hingedly connected with foot side plates 2041, one end of the foot plate 204 is hingedly connected with a foot landing parallel link 205, the foot landing parallel link 205 is hingedly connected with the bed body main frame 1, one end of the foot plate 204 is hingedly connected with a leg plate 206, both sides of the leg plate 206 are hingedly connected with leg side plates 2061, and the bottom of the foot plate 204 is fixedly connected with a bed plate support column 207.

[0033] The lifting driving cylinder 201 of the tail movable assembly 2 is fixedly connected with the bed main frame 1 at one end, a connecting block 202 is fixed at the other end of the lifting driving cylinder 201, an auxiliary supporting leg 203 is fixed at one end of the connecting block 202, a foot plate 204 is fixed at the other end of the auxiliary supporting leg 203, a foot side plate 2041 is hingedly connected at both sides of the foot plate 204, a foot parallel connecting rod 205 is hingedly connected at the end of the foot plate 204 and the other end is hingedly connected with the bed main frame 1, a leg plate 206 is hingedly connected at one end of the foot plate 204, a leg side plate 2061 is hingedly connected at both sides of the leg plate 206, and a bed plate supporting column 207 is fixed at the bottom of the foot plate 204; during use, the lifting driving cylinder 201 is telescoped to drive the auxiliary supporting leg 203 and the foot plate 204 to lift through the connecting block 202, the foot parallel connecting rod 205 ensures the stability of the foot plate 204 during lifting, and the foot side plate 2041 and the leg side plate 2061 can be unfolded to increase the supporting area; during contraction, the lifting driving cylinder 201 is contracted, the auxiliary supporting leg 203 and the foot plate 204 are pulled to move towards the bed main frame 1 through the connecting block 202, the foot parallel connecting rod 205 is folded by rotating with the foot plate 204, the leg plate 206 is folded towards the foot plate 204, the foot side plate 2041 and the leg side plate 2061 are folded to fit the foot plate 204 and the leg plate 206, and the bed plate supporting column 207 is folded with the foot plate 204.

[0034] In a preferred embodiment, the side guardrail assembly 4 comprises a guardrail rotating shaft 401 fixed on both sides of the bed main frame 1, the guardrail rotating shaft 401 is hingedly connected with an upper rotating arm 402 and a lower rotating arm 403, the upper rotating arm 402 is vertically arranged with the lower rotating arm 403, and the ends away from the guardrail rotating shaft 401 of the two are hingedly connected with the bed main frame 1.

[0035] The guardrail rotating shaft 401 of the side guardrail assembly 4 is fixed on both sides of the bed main frame 1, the upper rotating arm 402 and the lower rotating arm 403 are hingedly connected on the guardrail rotating shaft 401, and the ends away from the guardrail rotating shaft 401 of the upper rotating arm 402 and the lower rotating arm 403 are hingedly connected with the bed main frame 1; during use, the upper rotating arm 402 and the lower rotating arm 403 are unfolded by rotating around the guardrail rotating shaft 401 to form a side guardrail to play a protective role; during contraction, the upper rotating arm 402 and the lower rotating arm 403 are rotated towards the bed main frame 1 around the guardrail rotating shaft 401 to drive the whole side guardrail assembly 4 to be folded and fit the bed main frame 1.

[0036] In a preferred embodiment, the back-raising mechanism 5 comprises a back-raising lifting cylinder 501 fixed in the middle of the bed body main frame 1, the output end of the back-raising lifting cylinder 501 is hinged with a transmission connecting rod 502, the other end of the transmission connecting rod 502 is fixedly connected with a bed board adjusting connecting rod 503, the two ends of the bed board adjusting connecting rod 503 are respectively hinged with a first driving arm 504 and a second driving arm 505, the first driving arm 504 and the second driving arm 505 are symmetrically arranged, the top of the first driving arm 504 and the second driving arm 505 is fixedly connected with a back-raising plate 507, and the two sides of the back-raising plate 507 are both provided with a back-raising side plate 506, and the back-raising side plate 506 is located above the bed body main frame 1.

[0037] The back-raising lifting cylinder 501 of the back-raising mechanism 5 is fixed in the middle of the bed body main frame 1, the transmission connecting rod 502 is hinged at the output end of the back-raising lifting cylinder 501, the bed board adjusting connecting rod 503 is fixed at the other end of the transmission connecting rod 502, the first driving arm 504 and the second driving arm 505 are symmetrically hinged at the two ends of the bed board adjusting connecting rod 503, the back-raising plate 507 is fixed at the top of the first driving arm 504 and the second driving arm 505, and the back-raising side plate 506 is arranged at the two sides of the back-raising plate 507 and located above the bed body main frame 1; when raising the back, the back-raising lifting cylinder 501 pushes and pulls the transmission connecting rod 502, the transmission connecting rod 502 drives the bed board adjusting connecting rod 503 to move, the bed board adjusting connecting rod 503 drives the first driving arm 504 and the second driving arm 505 to rotate, and then drives the back-raising plate 507 and the back-raising side plate 506 to overturn upward to realize the back-raising function; when folding, the back-raising lifting cylinder 501 resets, pulls the transmission connecting rod 502 and the bed board adjusting connecting rod 503, and the first driving arm 504 and the second driving arm 505 rotate reversely, driving the back-raising plate 507 and the back-raising side plate 506 to fold downward and adhere to the bed body main frame 1.

[0038] In a preferred embodiment, the first driving arm 504 and the second driving arm 505 are in V shape, and the corners of the two are fixedly connected through reinforcing ribs, and the bed board adjusting connecting rod 503 and the back-raising plate 507 are detachably connected through bolts.

[0039] The first driving arm 504 and the second driving arm 505 are arranged in V shape, and the corners of the two are fixedly connected through reinforcing ribs, and the bed board adjusting connecting rod 503 and the back-raising plate 507 are detachably connected through bolts; when raising the back, the bed board adjusting connecting rod 503 drives the V-shaped first driving arm 504 and the second driving arm 505 to rotate, the reinforcing ribs enhance the structural strength of the two driving arms, ensure uniform stress, and avoid deformation of the driving arm during back-raising; when folding, the V-shaped first driving arm 504 and the second driving arm 505 can be folded to a smaller angle, further reducing the occupied space, and the bolt connection mode facilitates the disassembly of the back-raising plate 507 during subsequent maintenance.

[0040] In a preferred embodiment, the folding mechanism 6 is used to assist the folding action of the movable head frame 105 relative to the bed body main frame 1. The movable head frame 105 is quickly and smoothly folded, which improves the folding efficiency of the bed body, solves the defects of the prior art that the folding of the movable head frame 105 is laborious and the folding is insufficient, makes the overall size of the bed body more obviously reduced, and makes it easy to enter and exit narrow passages or spaces.

[0041] The above describes an exemplary embodiment of a bed body device of a large-scale folding bed body structure provided by the present disclosure with reference to a preferred embodiment, however, those skilled in the art can understand that various modifications and changes can be made to the above specific embodiments, and various technical features and structures proposed by the present disclosure can be combined without departing from the concept of the present disclosure, and the protection scope of the present disclosure is determined by the appended claims.

Claims

1. A bed body apparatus for substantially contracting a bed body structure, comprising a bed body main frame (1), characterized in that: The length direction one end of the bed body main frame (1) is movably assembled with a movable head frame (105) which can be telescopic along the length direction of the main frame, and the other end is movably assembled with a movable tail frame (102), the movable head frame (105) is detachably connected with a bed tail combination plate (3), the movable tail frame (102) is hingedly connected with a bed tail movable assembly (2), the middle region of the bed body main frame (1) is assembled with a back raising mechanism (5), the bottom of the bed body main frame (1) is rotatably connected with a side guardrail assembly (4) above the back raising mechanism (5), and the bed body main frame (1) and the back raising mechanism (5) are further provided with a folding mechanism (6).

2. A bed apparatus of a large-scale contractible bed structure according to claim 1, characterized in that: Both ends of the bed body main frame (1) are provided with frame fixing pieces (104), one side of the frame fixing piece (104) is hingedly connected with a movable head frame (105), the top of the movable head frame (105) is provided with a back raising plate (507), one end of the bed body main frame (1) away from the frame fixing piece (104) is provided with a locking pin (101), one side of the locking pin (101) is hingedly connected with a movable tail frame (102), and the top of the movable tail frame (102) is provided with a positioning support column (103).

3. A bed apparatus of a large-scale contractible bed structure according to claim 1, characterized in that: The bed tail combination plate (3) comprises a left bed tail plate body (301) and a right bed tail plate body (302), the opposite ends of the left bed tail plate body (301) and the right bed tail plate body (302) are provided with splicing bosses, the right bed tail plate body (302) is assembled with a bed tail plate splicing lock buckle (303), and the left bed tail plate body (301) and the right bed tail plate body (302) are detachably spliced through the bed tail plate splicing lock buckle (303); the back of the left bed tail plate body (301) and the right bed tail plate body (302) is provided with a bed tail plate mounting bracket (304), and the bed tail plate mounting bracket (304) is matched with the positioning support column (103).

4. The bed apparatus of claim 1, wherein: The bed tail movable assembly (2) comprises a lifting drive cylinder (201), one end of the lifting drive cylinder (201) is fixedly connected with the bed body main frame (1), the other end of the lifting drive cylinder (201) is fixedly connected with a connecting block (202), one end of the connecting block (202) is fixedly connected with an auxiliary supporting leg (203), the other end of the auxiliary supporting leg (203) is fixedly connected with a foot plate (204), both sides of the foot plate (204) are hingedly connected with a foot side plate (2041), one end of the foot plate (204) is hingedly connected with a foot parallel connecting rod (205), the foot parallel connecting rod (205) is hingedly connected with the bed body main frame (1), one end of the foot plate (204) is hingedly connected with a leg plate (206), both sides of the leg plate (206) are hingedly connected with a leg side plate (2061), and the bottom of the foot plate (204) is fixedly connected with a bed plate supporting column (207).

5. A bed apparatus of a large-scale contractible bed structure according to claim 1, characterized in that: The side guardrail assembly (4) comprises guardrail rotating shafts (401) fixed on both sides of the bed main frame (1), the guardrail rotating shafts (401) are hingedly connected with upper rotating arms (402) and lower rotating arms (403), the upper rotating arms (402) are vertically arranged with the lower rotating arms (403), and the two ends of the upper rotating arms (402) and the lower rotating arms (403) away from the guardrail rotating shafts (401) are hingedly connected with the bed main frame (1).

6. A bed apparatus of a large-scale contractible bed structure according to claim 1, characterized in that: The back raising mechanism (5) comprises a back raising lifting cylinder (501) fixed in the middle of the bed main frame (1), the output end of the back raising lifting cylinder (501) is hingedly connected with a transmission connecting rod (502), the other end of the transmission connecting rod (502) is fixedly connected with a bed plate adjusting connecting rod (503), the two ends of the bed plate adjusting connecting rod (503) are hingedly connected with a first driving arm (504) and a second driving arm (505) respectively, the first driving arm (504) and the second driving arm (505) are symmetrically arranged, the top of the first driving arm (504) and the second driving arm (505) is fixedly connected with a back raising plate (507), the two sides of the back raising plate (507) are provided with back raising side plates (506), and the back raising side plates (506) are located above the bed main frame (1).

7. A bed apparatus of a large-scale contractible bed structure according to claim 6, characterized in that: The first driving arm (504) and the second driving arm (505) are in V shape, and the corners of the two are fixedly connected through reinforcing ribs, and the bed plate adjusting connecting rod (503) and the back raising plate (507) are detachably connected through bolts.

8. A bed apparatus of a large-scale contractible bed structure according to claim 1, characterized in that: The folding mechanism (6) is used for assisting the folding action of the movable head frame (105) relative to the bed main frame (1).

Images