Multifunctional combined wheelchair bed for the elderly

Abstract

The embodiment of the application provides a multifunctional combined wheelchair bed for the elderly, which comprises a bed body and a wheelchair part. After being horizontally unfolded, the wheelchair part can be connected with the bed body to form a nursing bed. The wheelchair part comprises a back plate, a seat plate, a leg plate and a foot plate which are connected in sequence. The wheelchair base is installed below the seat plate. The walking wheels are installed at the bottom of the wheelchair base. The back plate lifting device and the side turning device are arranged below the bed body. The toilet is arranged on the seat plate. The toilet is arranged below the seat plate. The toilet is connected with the toilet bucket. The rehabilitation training device is arranged above the bed body. The application is designed for patients with difficulty in moving. The application has the functions of sitting, standing, turning, using the wheelchair separately, sitting on the toilet, washing the toilet, rehabilitation training and the like. The application is simple and convenient to use, reduces the pain and economic burden of patients and their families, greatly reduces the labor demand of nursing staff, and is suitable for the field of medical nursing instruments.

Description

Technical Field

[0001] This application relates to the field of medical and nursing devices, specifically to a multifunctional modular wheelchair bed for the elderly. Background Technology

[0002] Traditional nursing beds have limited functionality. When patients are paralyzed and unable to move independently, they require assistance from caregivers or family members to sit up, roll over, and get out of bed. Improper handling during these processes can cause secondary injuries. Furthermore, since most caregivers are currently female, adjusting posture and transferring patients is even more difficult. Additionally, patients often experience incontinence due to lower body paralysis, requiring frequent changes of sheets and blankets, which poses a significant challenge to the patient's hospital environment and the hygiene needs of caregivers. The wheelchair that comes with a traditional nursing bed still contains electrical equipment, making it impossible to clean the patient's body while using the wheelchair. Multiple people are needed to lift the patient to the toilet or bathroom for washing, causing great inconvenience to caregivers and family members. Moreover, significant movement of the patient's body can easily cause secondary injuries. Summary of the Invention

[0003] To address one of the aforementioned technical deficiencies, this application provides a multifunctional modular elderly wheelchair bed, comprising a bed body and a wheelchair body. The wheelchair body, when horizontally unfolded, can connect with the bed body to form a nursing bed. The bed body includes a bed frame and two bed boards, respectively positioned on the left and right sides of the bed frame. A passage for the wheelchair body is located in the center of the bed frame. The wheelchair body includes a backrest, seat, leg rests, and footrests connected in sequence. A wheelchair base is installed below the seat, and wheels are installed at the bottom of the wheelchair base. A backrest lifting device and a side-tilting device are located below the bed body.

[0004] Furthermore, a mounting base plate is provided below the bed body. One side of the mounting base plate is connected to the bottom of the headboard of the bed body. The backrest lifting device includes a first hydraulic cylinder, which is mounted on the mounting base plate. The output end of the first hydraulic cylinder is connected to a first connecting rod. One end of the first connecting rod is hinged to the backrest, and the other end of the first connecting rod is a first C-shaped buckle. The first C-shaped buckle abuts against the output end of the first hydraulic cylinder, and the first C-shaped buckle can be separated from the output end of the first hydraulic cylinder when the wheelchair is disengaged.

[0005] Furthermore, the side-turning device includes a second hydraulic cylinder mounted on the mounting base plate. The back plate has multiple parallel turning plate slots on both sides near the two bed boards. The turning plate slots are arranged from left to right along the bed body. A turning plate is installed in the turning plate slot. One end of the turning plate is hinged to the side of the turning plate slot near the center of the back plate. The other end of the turning plate is connected to a second connecting rod. A second C-shaped buckle is installed at the output end of the second hydraulic cylinder. One end of the second connecting rod is hinged to the turning plate. The other end of the second connecting rod abuts against the second C-shaped buckle. When the wheelchair is disengaged, the other end of the second connecting rod can be separated from the second C-shaped buckle.

[0006] Furthermore, a toilet is provided on the seat panel, the toilet including a toilet bowl set on the seat panel, the toilet bowl being set along the direction from the head to the foot of the bed, a first notch being opened on the side of the seat panel near the back panel, the toilet bowl and the first notch being connected through a water inlet, multiple air vents being opened on the inner wall of the toilet bowl, each air vent being provided with an air vent baffle, the top of the air vent baffle being hinged to the inner wall of the toilet bowl above the air vent, an air duct being connected to one side of the toilet bowl, the input end of the multiple air vents being connected to the output end of the air duct, and a sewage outlet being opened at the bottom of the toilet bowl.

[0007] Furthermore, a bidet is installed below the bed frame. The bidet includes a sliding base, which is mounted on the mounting plate. The top of the sliding base has a groove running along the direction from the head of the bed frame to the bed position. A slider is slidably mounted in the groove. A motor is installed on one side of the groove at the top of the sliding base. A gear is installed on the output shaft of the motor. A rack is installed on the slider along the direction of the groove. The gear and the rack mesh. A movable frame is installed on the top of the slider. The head of the movable frame passes through the first notch and the water inlet in sequence and extends into the toilet bowl. A soft brush is installed above the head of the movable frame.

[0008] Furthermore, a soft brush slot is installed above the head of the mobile frame, and the soft brush is detachably installed in the soft brush slot. Multiple first water outlets are vertically opened at the bottom of the soft brush slot, and multiple second water outlets are horizontally opened at the front of the head of the mobile frame. A water channel is opened inside the mobile frame, and a water pipe is installed at the tail of the mobile frame. The input end of the water channel is connected to the water pipe, and the output end of the water channel is divided into two branch paths. One branch path is connected to the input end of the multiple first water outlets, and the other branch path is connected to the input end of the multiple second water outlets.

[0009] Furthermore, the wheelchair also includes a hand crank assembly, which includes a crank, one end of which is connected to a crank shaft. A second notch is provided on the side of the seat plate near the leg plate. The crank is rotatably mounted in the second notch via the crank shaft. An L-shaped rocker arm is hinged to the other end of the crank. A rocker arm groove is provided at the bottom of the leg plate. A third notch is provided on the side of the footrest near the leg plate. After the L-shaped rocker arm passes through the rocker arm groove, the other end of the L-shaped rocker arm is hinged to the footrest at the third notch. A crank handle is detachably connected to one end of the crank shaft.

[0010] Furthermore, the bottom of the foot plate is provided with a mounting groove, and an auxiliary wheel assembly is provided in the mounting groove. The auxiliary wheel assembly includes an auxiliary wheel base, the top of which is connected to the mounting groove. An auxiliary wheel groove is installed below the auxiliary wheel base. One side of the auxiliary wheel groove is provided with a baffle, and the other side is open. An auxiliary wheel frame is installed in the auxiliary wheel groove. One end of the auxiliary wheel frame is hinged in the auxiliary wheel groove, and an auxiliary wheel is installed at the other end of the auxiliary wheel frame. A pin hole is provided on the auxiliary wheel groove, and a pin is detachably inserted into the pin hole.

[0011] Furthermore, a toilet bowl is provided below the sewage outlet. The toilet bowl includes a toilet bowl base and a toilet bowl lid. The toilet bowl lid is connected to the toilet bowl base in an openable and closable manner. A toilet opening and a water inlet are provided above the toilet bowl lid. The toilet opening is connected to the sewage outlet through a pipe. A handle is provided on one side of the toilet bowl base, and four toilet bowl wheels are provided below the toilet bowl base.

[0012] Furthermore, support frame mounting seats are provided on both sides of the first notch below the seat panel. The support frame mounting seats are equipped with detachable support frames. When the wheelchair is used alone, one end of the support frame abuts against the support frame mounting seat, and the other end of the support frame is engaged with the first connecting rod.

[0013] The multifunctional combined wheelchair bed for the elderly provided in this application embodiment uses a combinable bed body and wheelchair body to form a nursing bed. The wheelchair body can also be separated from the bed body to function as a wheelchair independently. This allows caregivers to transfer patients to the wheelchair without significantly moving their bodies, avoiding secondary injury. Combined with a backrest lifting device and a side-turning device, the patient's posture can be adjusted, facilitating caregivers to perform back rubbing, feeding, or other nursing needs. This effectively prevents pressure sores and bedsores caused by prolonged bed rest, greatly facilitating patients' daily activities, simplifying the work of caregivers, and enhancing the functionality of the device within a limited space.

[0014] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by way of what is pointed out in the written description, claims, and drawings. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of the multifunctional combined elderly wheelchair split bed provided in the embodiments of this application in the form of a complete nursing bed; Figure 2 This is a schematic diagram of the wheelchair section of the multifunctional combined elderly wheelchair split bed provided in the embodiments of this application in its separated state; Figure 3 This is a schematic diagram of the bed frame provided in an embodiment of this application; Figure 4 A top view of the back panel and seat panel provided in an embodiment of this application; Figure 5 This is a schematic diagram of the backplate lifting device provided in the embodiments of this application; Figure 6 A schematic diagram of the multifunctional combined elderly wheelchair split bed provided in the embodiments of this application in the backrest lifting state; Figure 7 A schematic diagram of the side-tipping device and part of the toilet bowl provided in the embodiments of this application; Figure 8 A partial cross-sectional view of the wheelchair section provided in an embodiment of this application; Figure 9 This is a schematic diagram of the structure of the chamber pot provided in an embodiment of this application; Figure 10 This is a partial structural schematic diagram of a toilet bowl provided in an embodiment of this application; Figure 11 An assembly drawing of a toilet bowl provided in an embodiment of this application; Figure 12 This is a schematic diagram of the structure of the hand-cranked assembly provided in an embodiment of this application; Figure 13 A cross-sectional view of the auxiliary wheel assembly provided in an embodiment of this application; Figure 14 This is a schematic diagram of the auxiliary wheel assembly provided in an embodiment of this application; Among them, 10 is the bed body, 101 is the bed frame, 102 is the bed board, 103 is the bed board support plate, 20 is the wheelchair part, 201 is the backrest, 2011 is the turning board groove, 2012 is the fourth notch, 2013 is the support limiting plate, 202 is the seat plate, 2021 is the first notch, 2022 is the support frame mounting base, 2023 is the second notch, 203 is the leg plate, 2031 is the swing arm groove, 204 is the footrest, 2041 is the mounting groove, and 2042 is the third notch. 205 is the seat base, 2051 is the crossbar, 206 is the traveling wheel, 207 is the support frame, 208 is the hand crank assembly, 2081 is the L-shaped rocker arm, 2082 is the crank, 2083 is the crank handle, 2084 is the crank handle shaft, 209 is the auxiliary wheel assembly, 2091 is the auxiliary wheel base, 2092 is the auxiliary wheel groove, 2093 is the auxiliary wheel frame, 2094 is the auxiliary wheel, 2095 is the pin hole, 2096 is the pin, 30 is the back panel lifting device, and 301 is the first hydraulic system. Cylinder, 302 is the first connecting rod, 40 is the side-tilting device, 401 is the second hydraulic cylinder, 402 is the tilting plate, 403 is the second connecting rod, 50 is the mounting base plate, 501 is the snap-fit ​​device, 60 is the toilet seat, 601 is the toilet bowl, 602 is the crotch cover, 603 is the water inlet, 604 is the drain outlet, 605 is the air outlet baffle, 606 is the air outlet, 607 is the air duct, 70 is the toilet washer, 701 is the sliding plate base, 702 is the sliding groove, 703 is the slider, and 704 is the moving frame. 7041 is the water channel, 7042 is the soft brush slot, 7043 is the first water outlet, 7044 is the second water outlet, 705 is the water pipe, 706 is the soft brush, 707 is the motor, 708 is the gear, 709 is the rack, 80 is the toilet bowl, 801 is the toilet bowl base, 802 is the toilet bowl lid, 803 is the toilet opening, 804 is the water inlet, 805 is the handle, 806 is the toilet bowl wheel, 90 is the rehabilitation training device, 901 is the vertical support rod, 902 is the horizontal bar, and 903 is the hanging ring. Detailed Implementation

[0016] To make the technical solutions and advantages in the embodiments of this application clearer, the following description is provided in conjunction with the appendix. Figure 1-14 The exemplary embodiments of this application will be described in further detail below. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0017] In the process of developing this application, the inventors discovered that traditional nursing beds have a relatively limited function. When patients are paralyzed individuals unable to move independently, they require assistance from caregivers or family members to sit up, roll over, and get out of bed. Improper handling during this process may cause secondary injury to the patient. Furthermore, most current caregivers are women, making it even more difficult to adjust posture and transfer patients. In addition, patients with lower body paralysis often experience incontinence, requiring frequent changes of bed sheets and blankets, which poses a significant challenge to the patient's hospital environment and the cleanliness of caregivers. The wheelchair that is separated from the traditional nursing bed still carries electrical equipment, making it impossible to clean the patient's body along with the wheelchair. Multiple people are needed to lift the patient to the toilet or bathroom for cleaning, causing great inconvenience to caregivers or family members. Moreover, moving the patient's body significantly can easily cause secondary injury.

[0018] To address the aforementioned issues, this application provides a multifunctional modular wheelchair bed for the elderly, such as... Figure 1 As shown, the device includes a bed body 10 and a wheelchair section 20. When horizontally unfolded, the wheelchair section 20 can be connected to the bed body 10 to form a complete nursing bed. The bed body 10 includes a bed frame 101 and two bed boards 102, which are respectively located on the left and right sides of the bed frame 101. A passage for the wheelchair section 20 to enter and exit is provided in the center of the bed frame 101. The wheelchair section 20 includes a backrest 201, a seat 202, a leg rest 203, and a footrest 204, which are sequentially hinged together. When the wheelchair section 20 is horizontally unfolded, the upper surfaces of the backrest 201, seat 202, leg rest 203, and footrest 204 are all on the same horizontal plane and flush with the bed board 102. The backrest 201 can rotate a certain angle around the hinge point between the seat board 202 and the backrest 201. The legboard 203 can rotate a certain angle around the hinge point between the seat board 202 and the legboard 203. A wheelchair base 205 is installed below the seat board 202. A walking wheel 206 is installed at the bottom of the wheelchair base 205. The walking wheel 206 is grounded. Preferably, the walking wheel 206 is a universal wheel. The wheelchair base 205 is responsible for supporting and moving the entire wheelchair 20. A backrest lifting device 30 and a side-flipping device 40 are provided below the bed 10. The backrest lifting device 30 can drive the backrest to complete the backrest raising or lowering function, and the side-flipping device 40 can complete the side-flipping function.

[0019] Specifically, such as Figure 3As shown, a pair of bed board support plates 103 extend into the bed body 10 at the corresponding positions of the back panel 201, leg panel 203, and footrest 204 on the bed frame 101. Each bed board support plate 103 includes a connected concave portion and a convex portion. One side of the concave portion is connected to the bed frame 101, and the other side of the concave portion is connected to the convex portion. The bed board 102 is disposed on the concave portion and is engaged between the convex portion and the bed frame 101. The two convex portions on the inner side of the pair of bed board support plates 103 can support the bottom sides of the back panel 201, leg panel 203, and footrest 204, ensuring that each board surface can be supported when the wheelchair body 20 is unfolded.

[0020] The inwardly recessed portion is used to snap onto the bed board 102. The bed board support plate 103 also includes an upwardly protruding portion. The bed board 102, as well as the back board 201, leg board 203, and footrest 204, are all mounted on the bed frame 101 via the bed board support plate 103, ensuring that each board surface can be supported when the wheelchair section 20 is unfolded.

[0021] In practice, under normal circumstances, the wheelchair section 20 unfolds horizontally and connects with the bed section 10 to form a complete nursing bed. When the patient needs to turn to the side, the turning device 40 can be used. When the patient needs to sit up, the backrest lifting device 30 can be driven. The backrest lifting device 30 and the turning device 40 can be used together to adjust the patient's posture, making it convenient for nursing staff to perform care such as turning the patient to the side to wipe their back or getting them up to feed them. When the patient needs to be moved, the wheelchair section 20 is separated from the bed section 10. After appropriate adjustments to the backrest 201, legboard 203 and footrest 204, the individual wheelchair section 20 can be obtained. There is no need to transfer the patient from the nursing bed to the wheelchair. Nursing staff can push the individual wheelchair section 20 to move the patient. Conversely, when the patient needs to lie down to rest, the wheelchair section 20 is pushed into the bed section through the channel opened in the bed section 10. The patient's posture and the wheelchair section 20 are adjusted appropriately to unfold horizontally.

[0022] This application combines a wheelchair with a nursing bed, avoiding the frequent transfers of patients who are unable to walk from the nursing bed to the wheelchair. Patients can turn over and adjust their posture while on the nursing bed, which greatly facilitates their daily activities, simplifies the work of nursing staff, and enhances the functionality of the device within a limited space.

[0023] As a preferred option, such as Figure 5As shown, a mounting base plate 50 is provided on the ground below the bed body 10. One side of the mounting base plate 50 is connected to the bottom of the headboard of the bed body 10. The backrest lifting device 30 includes a first hydraulic cylinder 301, which is mounted on the mounting base plate 50. The first hydraulic cylinder 301 is directly opposite the backrest 201. The output end of the first hydraulic cylinder 301 is connected to a first connecting rod 302. One end of the first connecting rod 302 is hinged to the backrest 201, and the other end of the first connecting rod 302 is a first C-shaped buckle. The first C-shaped buckle abuts against the output end of the first hydraulic cylinder 301, and the first C-shaped buckle can be separated from the output end of the first hydraulic cylinder 301 when the wheelchair part 20 is disengaged.

[0024] Specifically, such as Figure 7 , Figure 8 As shown, a locking device 501 is provided on the mounting base plate 50 near the wheelchair base 205. A crossbar 2051 is provided on the wheelchair base 205. When the wheelchair part 20 is pushed into the bed part 10, the locking device 501 abuts against and locks against the crossbar 2051 to limit the wheelchair part 20 and prevent the wheelchair part 20 from sliding out of the bed part 10.

[0025] In practice, when the patient needs to sit up while the nursing bed is in its complete state, the backrest lifting device 30 is activated, the output end of the first hydraulic cylinder 301 is lifted vertically, driving the first connecting rod 302, which in turn causes the backrest 201 to rotate around the hinge point between the seat board 202 and the backrest 201 at a certain angle, thus supporting the patient's upper body and enabling them to sit up.

[0026] More specifically, a flexible safety belt can be installed on the back panel 201. When the patient is lying down, the safety belt can be used to hold the patient's upper body close to the back panel 201. Preferably, the flexible safety belt is set on the back panel 201 at the waist and sides of the chest when the patient is lying down. It can assist the patient when he / she needs to sit up, prevent the patient from tipping over during the operation of the back panel lifting device, and reduce safety hazards.

[0027] This application enables patients who are unable to care for themselves to sit up, complete daily activities such as communicating with others, getting up, eating, and taking medication, without requiring strenuous assistance from caregivers.

[0028] As a preferred option, such as Figure 7As shown, the side-turning device 40 includes a second hydraulic cylinder 401 mounted on the mounting base plate 50. Multiple parallel turning board grooves 2011 are provided on both sides of the back plate 201 near the two bed boards 102. The turning board grooves 2011 are arranged from left to right along the bed body 10, and their direction corresponds to the patient's side-turning direction. A turning board 402 is installed within the turning board groove 2011. The shape of the turning board 402 is adapted to the turning board groove 2011. When the turning board 402 is in a horizontal state, its upper surface is flush with the back plate 2011. The upper surface of 1 is flush with each other. The second hydraulic cylinder 401 is positioned directly below the turning plate 402. One end of the turning plate 402 is hinged to the side of the turning plate groove 2011 near the center of the back plate 201. The other end of the turning plate 402 is connected to the second connecting rod 403. The output end of the second hydraulic cylinder 401 is equipped with a second C-shaped buckle. One end of the second connecting rod 403 is hinged to the turning plate 402, and the other end of the second connecting rod 403 abuts against the second C-shaped buckle. When the wheelchair part 20 is disengaged, the other end of the second connecting rod 403 can be separated from the second C-shaped buckle.

[0029] Specifically, such as Figure 4 As shown, the multiple turning slots 2011 on the same side can be spaced according to the different heights of patients. For example, one slot is for patients between 1.75 meters and 1.65 meters, and another slot is for patients between 1.65 meters and 1.55 meters, allowing patients of various ages and heights to use the turning device normally. Specifically, as shown... Figure 7 As shown, a support limiting plate 2013 is provided on the side of the turning board groove 2011 away from the center of the back plate 201. The bottom of the turning board 402 is provided with a notch corresponding to the support limiting plate 2013. The turning board 402 can be mounted on the back plate 201 through the support limiting plate 2013, ensuring that the turning board 402 will not fall out of the turning board groove 2011 under the influence of gravity after the power support of the second hydraulic cylinder 401 is lost, thus preventing the turning board 402 from being exposed to the notch of the turning board groove 2011. The turning board 402 always keeps its surface flat, ensuring the patient's comfort when lying flat.

[0030] In practice, when the patient needs to turn over while the nursing bed is in its complete state, the side-turning device 40 on that side is activated. The output end of the second hydraulic cylinder 401 is vertically lifted, driving the second connecting rod 403, which in turn the turning plate 402 rotates at a certain angle around the hinge point between the turning plate groove 2011 and the turning plate 402, thus supporting the patient's body on that side and achieving side-turning.

[0031] More specifically, the two turning plates 402 on the backrest 201 near the seat plate 202 (i.e., near the patient's waist) can be widened to serve as a body support. When the backrest 201 is raised, it can protect the patient's sides and prevent the patient from falling. When used as a body support, the connection between the body support (turning plate 402) and the second hydraulic cylinder 401 is disconnected. A spring can be installed in the corresponding turning plate groove 2011. The spring can spring up the outer side of the body support. The two body supports work together to firmly protect the patient's sides. When the backrest is raised, it can prevent the patient's body from sliding or even falling due to the raising of the backrest 201, making the raising of the backrest safer and more reliable. When the backrest is lowered, the body support can be manually pressed back into the turning plate groove 2011 and locked in place. This application allows patients who are unable to care for themselves to turn over to their side, making it easier to adjust their posture and wipe their backs. It can effectively prevent health problems such as pressure sores and bedsores caused by prolonged bed rest, without requiring caregivers to provide strenuous assistance.

[0032] As a preferred option, such as Figure 4 , Figure 8 , Figure 10 As shown, a toilet 60 is provided on the seat panel 202. The toilet 60 includes a toilet bowl 601 provided on the seat panel 202. The toilet bowl 601 is arranged along the direction from the head to the foot of the bed in the bed body 10. A first notch 2021 is provided on the side of the seat panel 202 near the back panel 201. The toilet bowl 601 and the first notch 2021 are connected through a water inlet 603. Multiple air outlets 606 are provided on the inner wall of the toilet bowl 601. Each air outlet 606 is provided with an air outlet baffle 605. The top of the air outlet baffle 605 is hinged to the inner wall of the toilet bowl 601 above the air outlet 606. An air duct 607 is connected to one side of the toilet bowl 601. The input end of the multiple air outlets 606 is connected to the output end of the air duct 607. The air duct 607 is connected to a dry hot air source. A sewage outlet 604 is provided at the bottom of the toilet bowl 601.

[0033] In practice, when patients are in a fully functional nursing bed, they do not need to get out of bed to find a chamber pot or other tools to relieve themselves. They can simply use the toilet bowl 601. After rinsing, water enters through the inlet 603 to flush the toilet bowl 601. The flushing water, along with the waste, is discharged from the drain 604 into the toilet bowl 80. Then, a drying hot air source is activated, which sprays out through the air duct 607 and multiple air outlets 606 to dry the patient's private parts and the toilet bowl 601. This keeps the toilet bowl dry and prevents the patient from being in a damp environment for a long time, which can cause eczema and other diseases. If there is no air source blowing, the air outlet baffle 605 will adhere tightly to the inner wall of the toilet bowl 601 due to its own weight and block the air outlets 606, preventing water from seeping into the toilet bowl 601 when the water inlet 603 is used to flush the toilet bowl 601. The preferred air outlet 606 is arranged in a horizontal ring with two rows. The upper row of air outlets 606 is preferably oriented towards the patient's private parts, and the lower row of air outlets 606 is preferably arranged in a horizontal or downward direction, so as to evenly dry the inner wall of the toilet bowl 601 and the patient's private parts.

[0034] More specifically, a waterproof gravity sensor can be installed inside the toilet bowl 601. This gravity sensor can detect changes in gravity within the toilet bowl 601 to determine whether the patient has urinated and whether urination is complete. If urination is detected and the gravity no longer changes after a certain period of time, it is determined that urination is complete, and water is then introduced through the inlet 603 for flushing, followed by drying with a hot air source. For patients who are unable to manage their urination and defecation, a special shield 6 can be worn at the base of their groin. 02. The bottom of the cover 602 is close to the bed board, and both ends are fixed to the patient's thighs by elastic straps to block the splashing generated when the patient excretes, preventing soiling of the patient's clothes and bed sheets; preferably, when the patient is resting unattended, a flexible safety belt can be installed on the leg board 203. When the patient is lying flat, the safety belt can be used to keep the patient's legs close to the back leg board 203, so that the patient's private parts are aligned with the toilet bowl 601, assisting in the excretion position and further ensuring the cleanliness of the patient's excretion when unattended.

[0035] This application simplifies the process for patients to address their physiological needs, especially for patients with lower body paralysis who suffer from urinary and fecal incontinence. They can address these uncontrollable physiological needs while lying on a nursing bed, avoiding soiling of clothing and bed sheets due to incontinence and reducing the workload of nursing staff.

[0036] As a supplement to the above preferred solutions, such as Figure 4 , Figure 8 , Figure 10 , Figure 11As shown, a bidet 70 is installed below the bed frame 10. The bidet 70 includes a sliding base 701, which is mounted on the mounting base 50. The top of the sliding base 701 has a groove 702 extending from the head of the bed frame 10 to the bed position. A slider 703 is slidably mounted within the groove 702. A motor 707 is mounted on one side of the groove 702 at the top of the sliding base 701. A gear 708 is mounted on the output shaft of the motor 707. A rack 709 is mounted on the slider 703 along the direction of the groove 702. The gear 708 meshes with the rack 709. A movable frame 704 is mounted on the top of the slider 703. The head of the movable frame 704 extends into the toilet bowl 601 after passing through the first notch 2021 and the water inlet 603. A soft brush 706 is installed above the head of the movable frame 704. A fourth notch 2012 is provided on the back panel 201 near the seat panel 202. When the wheelchair section 20 is horizontally unfolded, the fourth notch 2012 connects with the first notch 2021, facilitating the forward and backward movement of the movable frame 704. When the patient is lying flat, waterproof materials such as waterproof cloth are laid on top of the fourth notch 2012 and the first notch 2021 before a bed sheet is laid on top, further keeping the patient's body dry and avoiding discomfort and a series of diseases such as eczema.

[0037] In practice, after the gravity sensor detects that the patient has finished excreting, the toilet washer 70 is activated. The motor 707 drives the gear 708 to rotate. The gear 708 drives the rack 709 and the slider 703 to move in the slide groove 702 toward the water inlet 603. This causes the moving frame 704 to pass through the first notch 2021 and the water inlet 603 in sequence and then extend into the toilet bowl 601. The soft brush 706 then wipes the patient's private parts.

[0038] More specifically, the head of the movable frame 704 is equipped with a displacement sensor, which can monitor the position of the soft brush 706 in real time. The motor 707 runs in the forward direction. When the displacement sensor detects that the soft brush 706 has moved to the area below the patient's buttocks, the motor 707 changes its movement mode and repeats the forward-reverse cycle within a set range. Correspondingly, the soft brush 706 can wipe the patient's private parts back and forth after defecation. After the set wiping time is completed, the motor 707 runs in the reverse direction, and the movable frame 704 returns to its initial position. The sliding base 701 can be raised and lowered relative to the mounting base 50, so that the bidet 70 can be lowered below the bed board to avoid the bidet 70 interfering with the back panel 201 of the wheelchair 20 when the wheelchair part 20 is separated from the bed part 10.

[0039] As a supplement to the above preferred solutions, such as Figure 4 , Figure 8 , Figure 10 , Figure 11As shown, a soft brush groove 7042 is installed above the head of the mobile frame 704. A soft brush 706 is detachably installed in the soft brush groove 7042. At least one water spray hole is opened on the soft brush 706. Multiple first water outlet holes 7043 are vertically opened at the bottom of the soft brush groove 7042. The water spray hole is connected to one of the first water outlet holes 7043. Multiple second water outlet holes 7044 are horizontally opened at the front of the head of the mobile frame 704. A water channel 7041 is opened inside the mobile frame 704. The inside of the water channel 7041 is a vacuum. A water pipe 705 is installed at the tail of the mobile frame 704. The water pipe 705 is connected to a hot water source. The input end of the water channel 7041 is connected to the water pipe 705. The output end of the water channel 7041 is divided into two branch paths. One branch path is connected to the input end of the multiple first water outlet holes 7043, and the other branch path is connected to the input end of the multiple second water outlet holes 7044.

[0040] In practice, when the gravity sensor detects that the patient has finished excreting, and the displacement detector detects that the moving frame 704 has moved forward to below the patient's buttocks, the warm water source is turned on. The water flows from the water pipe 705 through the water passage 7041 and is discharged from the first water outlet 7043 and the second water outlet 7044 respectively. The water from the first water outlet 7043 wets the soft brush 706, which, together with the spray nozzle, washes and wipes the patient's private parts. The water from the second water outlet 7044 flushes the inner wall of the toilet bowl 601. After the set time is completed, the warm water source stops supplying water.

[0041] More specifically, valves can be installed on the two branch lines, and gravity sensors can be used to sense the patient's excretion volume, thereby controlling the water flow and opening / closing status of the first water outlet 7043 and the second water outlet 7044; for example... Figure 11 As shown, one side of the soft brush groove 7042 is open. When the soft brush 706 needs to be replaced, the soft brush 706 can be removed from the soft brush groove 7042. Then, a new soft brush 706 is slid into the soft brush groove 7042 from the open side and locked in the soft brush groove 7042 to complete the fixation. The second water outlet 7044 is preferably distributed in multiple rows in a fan shape, which can more thoroughly flush the inner wall of the toilet bowl 601.

[0042] The bidet provided in this application works in conjunction with the toilet to address the patient's physiological needs while cleaning the patient's private parts after using the toilet. This makes the originally inconvenient and messy defecation problem simple, clean, and dignified, reducing the cleaning work and nursing costs for caregivers.

[0043] As a preferred embodiment, the wheelchair unit 20 further includes a hand crank assembly 208, which includes a crank 2082. One end of the crank 2082 is connected to a crank shaft 2084. A second notch 2023 is provided on the side of the seat 202 near the leg plate 203. The crank 2082 is rotatably disposed in the second notch 2023 via the crank shaft 2084. An L-shaped rocker arm 2081 is hinged to the other end of the crank 2082. A rocker arm groove 2031 is provided at the bottom of the leg plate 203. A third notch 2042 is provided on the side of the footrest 204 near the leg plate 203. After passing through the rocker arm groove 2031, the other end of the L-shaped rocker arm 2081 is hinged to the footrest 2042 at the third notch 2042. A crank handle 2083 is detachably connected to one end of the crank shaft 2084.

[0044] As a preferred embodiment, the bottom of the foot plate 204 is provided with a mounting groove 2041, and an auxiliary wheel assembly 209 is provided in the mounting groove 2041. The auxiliary wheel assembly 209 includes an auxiliary wheel base 2091, the top of the auxiliary wheel base 2091 is connected to the mounting groove 2041, and an auxiliary wheel groove 2092 is installed below the auxiliary wheel base 2091. One side of the auxiliary wheel groove 2092 is provided with a baffle, and the other side is open. An auxiliary wheel frame 2093 is installed in the auxiliary wheel groove 2092. One end of the auxiliary wheel frame 2093 is hinged in the auxiliary wheel groove 2092, and an auxiliary wheel 2094 is installed at the other end of the auxiliary wheel frame 2093. A pin hole 2095 is provided on the auxiliary wheel groove 2092, and a pin 2096 is detachably inserted into the pin hole 2095.

[0045] As a preferred embodiment, support frame mounting seats 2022 are respectively provided on both sides of the first notch 2021 below the seat plate 202. Each support frame mounting seat 2022 has a detachable support frame 207. When the wheelchair unit 20 is used alone, one end of the support frame 207 abuts against the support frame mounting seat 2022, and the other end of the support frame 207 is engaged with the first connecting rod 302. Specifically, the support frame 207 includes a Y-bracket connected at a certain angle and a engaging bracket. The end of the Y-bracket is connected by a round rod. The support frame mounting seat 2022 has an arc-shaped groove, into which the round rod is inserted to abut. The end of the engaging bracket has a engaging connector, and the first connecting rod 302 has a engaging groove, with the engaging connector and engaging groove fitting together.

[0046] In practice, when a patient needs to use a wheelchair, the output end of the first connecting rod 302 separates from the first hydraulic cylinder 301, and the sliding base 701 descends relative to the mounting base 50 until the bidet 70 descends below the bed board. Medical staff then push the horizontal wheelchair section 20 outwards from the bed section 10. A crank 2083 is installed on the crank shaft 2084 to utilize the weight of the patient's lower body, leg rest 203, and footrest 204. The leg rest 203 rotates downwards around its hinge with the seat board 202. Through the combined action of the L-shaped rocker arm 2081 and crank 2082 in the hand crank assembly 208, the footrest 204 rotates with the leg rest 203. With the crank 2083 rotated, the footrest 204 maintains a stable posture when it lands. At this time, the inner curve of the L-shaped rocker arm 2081 abuts against the bottom of the rocker arm groove 2031, completing the limiting action. Figure 8 As shown; remove the pin 2096 from the pin hole 2095, rotate the auxiliary wheel frame 2093 from the open side to unfold the auxiliary wheel assembly 209 stored in the auxiliary wheel groove 2092 downwards, and then reinsert the pin 2096 to complete the limiting of the auxiliary wheel frame 2093. After unfolding, the direction of travel of the auxiliary wheel 2094 is consistent with that of the walking wheel 206. Medical staff or patients' family members can lift the patient's upper body to a suitable angle by lifting the back panel 201, install the support frame 207, the round rod is inserted into the arc groove to complete the abutment, the snap joint and the snap groove are snapped together, and the leg panel 203 and foot pad 204 are adjusted appropriately to complete the separation of the wheelchair part 20. When it is necessary to return to the complete nursing bed state, fold and store the auxiliary wheel assembly 209, rotate the hand crank assembly 208 to raise the leg plate 203 and footrest 204 to a horizontal state, remove the support frame 207, rotate the back panel 201 to a horizontal state, and push the wheelchair part 20 back into the bed body part 10.

[0047] The wheelchair unit 20 provided in this application can be used as a complete wheelchair when used separately. When the wheelchair unit 20 is separated, the electrical equipment such as the backrest lifting device 30 and the side-tilting device 40 are also separated. The backrest of the wheelchair unit 20 is supported by a support frame 207, and the legboard 203 and footrest 204 are supported by a hand-cranked assembly 208 and an auxiliary wheel assembly 209. This ensures that the wheelchair unit 20 is completely free of electrical equipment when used alone. When patients need to take a bath, especially in hot summer weather when frequent bathing is required, this avoids the problem of traditional wheelchairs where patients cannot be directly pushed into the bathroom to bathe due to the presence of electrical equipment, or the safety hazard of electric leakage during bathing caused by traditional waterproof wheelchairs. With this application, when patients need to bathe, the sheets on the nursing bed are removed, and the wheelchair unit 20 can be separated to directly push the patient into the bathroom for bathing. There is no need to transfer the patient multiple times for bathing, making bathing safe, convenient and quick.

[0048] As a preferred option, such as Figure 8 , Figure 9 As shown, a toilet bowl 80 is provided below the drain outlet 604. A horizontal plate is provided on the wheelchair base 205, and the toilet bowl 80 is placed on the horizontal plate. The toilet bowl 80 includes a toilet bowl base 801 and a toilet bowl cover 802. The toilet bowl cover 802 is detachably connected to the toilet bowl base 801. A toilet opening 803 and a water inlet 804 are provided above the toilet bowl cover 802. The toilet opening 803 is connected to the drain outlet 604 through a pipe. A handle 805 is provided on one side of the toilet bowl base 801, and four toilet bowl wheels 806 are provided below the toilet bowl base 801.

[0049] In practice, after the patient finishes using the toilet, the waste flushed down by the toilet bowl 70 enters the toilet bowl 80 through the drain outlet 604 via the pipe. When a certain amount of waste is stored in the toilet bowl 80, the connection between the pipe and the drain outlet 803 is disconnected. The toilet bowl 80 is then slid out from below using the handle 805. After the toilet bowl lid 802 is lifted, the waste is emptied and the toilet bowl 80 is cleaned through the water outlet 804. After cleaning, the toilet bowl 80 is returned to its original position and the pipe is reconnected to the drain outlet 803.

[0050] The toilet bowl 80 provided in this application is used in conjunction with the toilet seat 60 and the bidet 70 to fully meet the physiological needs of patients. The enclosed design of the toilet bowl 80 can store a certain amount of waste and reduce its odor to a certain extent, further improving the cleanliness and comfort of patients' convenience.

[0051] As a preferred option, such as Figure 1 , Figure 3 As shown, a rehabilitation training device 90 is provided above the bed frame 10. The rehabilitation training device 90 includes vertical support rods 901 set on both sides of the bed frame 101, and a single bar 902 is installed between the two vertical support rods 901. A wristband 903 is suspended on the single bar 902 by an elastic material. Specifically, a timer can be installed at the head of the bed to assist in the use of the rehabilitation training device 90.

[0052] The rehabilitation training device 90 provided in this application, by setting up a vertical support rod 901, a horizontal bar 902 and a wristband 903, allows patients to conveniently perform rehabilitation training on their upper body while lying in bed. It can be used in conjunction with a backrest lifting device 30 to appropriately adjust the height of the patient's upper body, thus avoiding local or systemic muscle atrophy caused by prolonged bed rest.

[0053] As a preferred option, an alarm device and alarm button can be installed at the bedside. In case of emergencies such as failure to clean up after defecation, lack of external dry hot air source or warm water source, or failure to empty the bedpan when it is full, patients who are not paralyzed in the upper body or their family members can notify / prompt medical staff or family members to handle the situation by pressing the alarm button.

[0054] This application provides a multifunctional modular wheelchair bed for the elderly. The bed frame and wheelchair unit can be combined to form a nursing bed, or the wheelchair unit can be separated to function as a wheelchair. This avoids frequent transfers of immobile patients from the nursing bed to the wheelchair. Combined with a backrest lifting device and a side-turning device, it allows for patient posture adjustment, facilitating caregivers to perform back rubs, feeding, and other nursing needs. It effectively prevents pressure sores and bedsores caused by prolonged bed rest, greatly facilitating patients' daily activities, simplifying the work of caregivers, and enhancing the functionality of the device within a limited space. The use of a commode, bidet, and bedpan allows patients to address their physiological needs without leaving bed, and enables post-convenience cleaning of the genitals, simplifying the previously inconvenient and unsightly process of defecation and urination, making it clean, comfortable, and dignified, and reducing the cleaning work and care costs for nursing staff. When the wheelchair is detached from the bed and used independently, there are no electrical devices on it. When the patient needs to shower, caregivers simply push the patient and wheelchair directly into the bathroom, making showering safer and more convenient. A rehabilitation training device installed on the bed allows patients to perform upper body rehabilitation exercises while lying in bed, preventing local or systemic muscle atrophy caused by prolonged bed rest. This application designs a multifunctional combination wheelchair-mounted bed for elderly patients with limited mobility, integrating sitting and standing, side turning, wheelchair separation for independent use, commode, bidet, and rehabilitation training functions into one unit. It is simple and convenient to use, reducing the suffering and financial burden on patients and their families, while significantly reducing the need for nursing staff, making it highly practical.

[0055] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0056] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0057] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0058] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0059] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A multifunctional modular wheelchair bed for the elderly, comprising a bed body (10) and a wheelchair body (20), wherein the wheelchair body (20), when horizontally unfolded, can be connected with the bed body (10) to form a nursing bed, characterized in that: The bed section (10) includes a bed frame (101) and two bed boards (102). The two bed boards (102) are respectively located on the left and right sides of the bed frame (101). The center of the bed frame (101) has a passage for the wheelchair section (20) to enter and exit. The wheelchair section (20) includes a back panel (201), a seat panel (202), a leg panel (203), and a footrest (204) that are hinged together in sequence. A wheelchair base (205) is installed under the seat panel (202). A walking wheel (206) is installed at the bottom of the wheelchair base (205). A back panel lifting device (30) and a side-flipping device (40) are provided under the bed section (10).

2. The multifunctional combined elderly wheelchair split bed according to claim 1, characterized in that, A mounting base plate (50) is provided below the bed body (10). One side of the mounting base plate (50) is connected to the bottom of the headboard of the bed body (10). The backrest lifting device (30) includes a first hydraulic cylinder (301). The first hydraulic cylinder (301) is mounted on the mounting base plate (50). The output end of the first hydraulic cylinder (301) is connected to a first connecting rod (302). One end of the first connecting rod (302) is hinged to the backrest (201). The other end of the first connecting rod (302) is a first C-shaped buckle. The first C-shaped buckle abuts against the output end of the first hydraulic cylinder (301). When the wheelchair part (20) is disengaged, the first C-shaped buckle can be separated from the output end of the first hydraulic cylinder (301).

3. The multifunctional combined elderly wheelchair split bed according to claim 2, characterized in that, The side-turning device (40) includes a second hydraulic cylinder (401) mounted on the mounting base plate (50). The back plate (201) has multiple parallel turning plate grooves (2011) on both sides near the two bed boards (102). The turning plate grooves (2011) are arranged from left to right along the bed body (10). A turning plate (402) is installed in each turning plate groove (2011), and one end of the turning plate (402) is hinged to the turning plate groove (2011). 11) On the side near the center of the back panel (201), the other end of the turning plate (402) is connected to a second connecting rod (403). The output end of the second hydraulic cylinder (401) is equipped with a second C-shaped buckle. One end of the second connecting rod (403) is hinged to the turning plate (402), and the other end of the second connecting rod (403) abuts against the second C-shaped buckle. When the wheelchair part (20) is disengaged, the other end of the second connecting rod (403) can be separated from the second C-shaped buckle.

4. The multifunctional combination wheelchair bed for the elderly according to claim 2, characterized in that, The seat panel (202) is provided with a toilet (60), the toilet (60) including a toilet bowl (601) disposed on the seat panel (202), the toilet bowl (601) being disposed along the direction from the head to the foot of the bed body (10), a first notch (2021) being provided on the side of the seat panel (202) near the back panel (201), the toilet bowl (601) and the first notch (2021) being connected by a water inlet (603), the toilet bowl (601) being connected by a water inlet (603). Multiple air outlets (606) are provided on the inner wall of the toilet bowl (601), and each air outlet (606) is provided with an air outlet baffle (605). The top of the air outlet baffle (605) is hinged to the inner wall of the toilet bowl (601) above the air outlet (606). A duct (607) is connected to one side of the toilet bowl (601). The input end of the multiple air outlets (606) is connected to the output end of the duct (607). A drain outlet (604) is provided at the bottom of the toilet bowl (601).

5. The multifunctional modular wheelchair bed for the elderly according to claim 4, characterized in that, A bidet (70) is installed below the bed section (10). The bidet (70) includes a sliding base (701), which is mounted on the mounting base (50). The top of the sliding base (701) has a groove (702) extending from the head of the bed section (10) to the bed position. A slider (703) is slidably disposed in the groove (702). A motor (707) is installed on one side of the top groove (702) of the sliding base (701). A gear (708) is installed on the output shaft of the machine (707). A rack (709) is provided on the slider (703) along the direction of the slide groove (702). The gear (708) meshes with the rack (709). A movable frame (704) is installed on the top of the slider (703). The head of the movable frame (704) passes through the first notch (2021) and the water inlet (603) in sequence and then extends into the toilet bowl (601). A soft brush (706) is installed above the head of the movable frame (704).

6. The multifunctional combination wheelchair-style split bed for the elderly according to claim 5, characterized in that, A soft brush groove (7042) is installed above the head of the mobile frame (704). The soft brush (706) is detachably installed in the soft brush groove (7042). Multiple first water outlet holes (7043) are vertically opened at the bottom of the soft brush groove (7042). Multiple second water outlet holes (7044) are horizontally opened at the front of the head of the mobile frame (704). A water channel (7041) is opened inside the mobile frame (704). A water pipe (705) is installed at the tail of the mobile frame (704). The input end of the water channel (7041) is connected to the water pipe (705). The output end of the water channel (7041) is divided into two branch paths. One branch path is connected to the input end of the multiple first water outlet holes (7043), and the other branch path is connected to the input end of the multiple second water outlet holes (7044).

7. The multifunctional combination wheelchair-style split bed for the elderly according to claim 1, characterized in that, The wheelchair unit (20) also includes a hand crank assembly (208), which includes a crank (2082). One end of the crank (2082) is connected to a crank shaft (2084). A second notch (2023) is provided on the side of the seat plate (202) near the leg plate (203). The crank (2082) is rotatably disposed in the second notch (2023) via the crank shaft (2084). The other end of the crank (2082) is hinged to an L... The L-shaped swing arm (2081) has a swing arm groove (2031) at the bottom of the leg plate (203). The foot plate (204) has a third notch (2042) on the side near the leg plate (203). After the L-shaped swing arm (2081) passes through the swing arm groove (2031), the other end of the L-shaped swing arm (2081) is hinged to the foot plate (204) at the third notch (2042). One end of the crank shaft (2084) is detachably connected to the crank handle (2083).

8. The multifunctional combined elderly wheelchair split bed according to claim 1, characterized in that, The bottom of the foot plate (204) is provided with a mounting groove (2041). An auxiliary wheel assembly (209) is provided in the mounting groove (2041). The auxiliary wheel assembly (209) includes an auxiliary wheel base (2091). The top of the auxiliary wheel base (2091) is connected to the mounting groove (2041). An auxiliary wheel groove (2092) is installed below the auxiliary wheel base (2091). One side of the auxiliary wheel groove (2092) is provided with a baffle, and the other side is open. An auxiliary wheel frame (2093) is installed in the auxiliary wheel groove (2092). One end of the auxiliary wheel frame (2093) is hinged in the auxiliary wheel groove (2092), and the other end of the auxiliary wheel frame (2093) is provided with an auxiliary wheel (2094). A pin hole (2095) is provided on the auxiliary wheel groove (2092). A pin (2096) is detachably inserted into the pin hole (2095).

9. The multifunctional combined elderly wheelchair split bed according to claim 4, characterized in that, Below the drain outlet (604) is a toilet bowl (80), which includes a toilet bowl base (801) and a toilet bowl cover (802). The toilet bowl cover (802) is detachably connected to the toilet bowl base (801). Above the toilet bowl cover (802) are a toilet opening (803) and a water inlet (804). The toilet opening (803) is connected to the drain outlet (604) through a pipe. A handle (805) is provided on one side of the toilet bowl base (801), and four toilet bowl wheels (806) are provided below the toilet bowl base (801).

10. The multifunctional combined elderly wheelchair split bed according to claim 4, characterized in that, The seat plate (202) is provided with support frame mounting seats (2022) on both sides of the first notch (2021) below it. The support frame mounting seats (2022) are provided with detachable support frames (207). When the wheelchair part (20) is used alone, one end of the support frame (207) abuts against the support frame mounting seat (2022), and the other end of the support frame (207) is engaged with the first connecting rod (302).

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