Handrail assembly and electric bed

Abstract

The utility model relates to a handrail assembly and an electric bed. The handrail assembly comprises a fixed assembly and a movable assembly, the fixing assembly is used for being fixed to a bed frame. The movable assembly comprises a movable plate body and a handrail, the handrail is connected to the movable plate body, the movable plate body is movably connected to the fixed assembly, the movable plate body is provided with a swing end and a hinge end which are oppositely arranged in the X direction, the hinge end is hinged to the movable plate body through a rotating shaft, the swing end is provided with an arc-shaped groove, and a limiting shaft is movably connected into the arc-shaped groove; one end of the limiting shaft is located in the arc-shaped groove, and the other end is connected to the fixing assembly; a first elastic piece is arranged between the fixing assembly and the swing end. The utility model further discloses an electric bed. The stability of the handrail can be effectively guaranteed, and meanwhile the handrail can flexibly move within a preset range and can be effectively centered and reset in time.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric bed technical field especially is a handrail subassembly and electric bed. BACKGROUND

[0002] With the development of science and technology, people's demand for intelligent electric bed is also higher and higher. In order to better improve the use convenience of electric bed, handrails can be arranged on the electric bed, which is used to block falling on one hand, and sensors can be arranged on the handrails to realize intelligent feedback to user demand on the other hand, for example, the state change of the handrail is monitored through the sensor, thereby the automatic lifting or flattening of the bed plate of the electric bed is controlled to monitor the user's getting up and lying down demand. The current intelligent handrails with the above functions usually need to be flexibly moved within a certain range and can be reset in time to ensure the accuracy of sensor monitoring each time. However, the existing handrails are easily pressed laterally by sleepers, sponge mattresses, bedding and other objects, so they cannot be flexibly moved and reset, thereby affecting the intelligent monitoring effect. SUMMARY

[0003] Therefore, the utility model wants to solve the technical problem of ensuring the stability of the intelligent handrail while making it flexible to move within a certain range and reset in time.

[0004] To solve the above technical problems, the utility model provides a handrail subassembly, which comprises,

[0005] The fixed assembly is used for being fixed with the bed frame.

[0006] The movable assembly comprises a movable plate body and a handrail, the handrail is connected to the movable plate body, the movable plate body is movably connected to the fixed assembly, the movable plate body has a swing end and a hinged end which are oppositely arranged along the X direction, the hinged end is hinged to the fixed plate body through a rotating shaft, the swing end is provided with an arc-shaped groove, a limiting shaft is movably connected in the arc-shaped groove, one end of the limiting shaft is located in the arc-shaped groove, and the other end is connected to the fixed assembly.

[0007] The first elastic member is arranged between the fixed assembly and the swing end.

[0008] In an embodiment of the utility model, the swing end of the movable plate body is provided with at least two arc-shaped grooves, all the arc-shaped grooves are located on the same circle, and the center of the circle is located on the axis of the rotating shaft.

[0009] In one embodiment of the utility model, the fixed assembly includes mutually fixed first fixed plate body and second fixed plate body, the first fixed plate body is used for and bed frame is fixed, the second fixed plate body is located between the first fixed plate body and the movable plate body, the articulated end of movable plate body is articulated through pivot and the first fixed plate body, one end of the limiting shaft is located in the arc slot, the other end passes through the second fixed plate body and is connected with the first fixed plate body.

[0010] In one embodiment of the utility model, the armrest assembly further includes a top bead, the fixed assembly is connected with the top bead through a second elastic member, the top bead is used to move towards / away from the movable plate body, one side of the movable plate body towards the fixed assembly is provided with a recess, when the movable plate body is in the balanced position, the top bead is inserted in the recess.

[0011] In one embodiment of the utility model, the fixed assembly is connected with a bead seat, a sliding cavity is arranged in the bead seat, and the top bead is connected in the sliding cavity through a second elastic member.

[0012] In one embodiment of the utility model, the two ends of the second fixed plate body along the Z direction are connected with the swing end through independent first elastic members.

[0013] In one embodiment of the utility model, the movable plate body includes a main body part, the arc slot is located on the main body part, the main body part is articulated with the movable plate body through a pivot, the two ends of the main body part along the X direction are formed with a first side plate part and a second side plate part respectively, one end of the second fixed plate body is formed with a third side plate part, and the first elastic members are connected between the third side plate part and the first side plate part.

[0014] In one embodiment of the utility model, the first side plate part and the third side plate part are both provided with positioning grooves, the positioning grooves are both provided with limiting columns, the positioning grooves on the first side plate part and the third side plate part are one-to-one corresponding, one end of each first elastic member is connected with the limiting column in the positioning groove of the third side plate part, and the other end is connected with the limiting column in the corresponding positioning groove of the first side plate part.

[0015] In one embodiment of the utility model, the armrest is U-shaped, one end of the armrest is fixed with the first side plate part, and the other end is fixed with the second side plate part.

[0016] In one embodiment of the utility model, the upper portion of the first fixed plate body is outwardly bent to form a mounting portion.

[0017] In one embodiment of the utility model, the limiting shaft includes a cap body part and a rod body part, the outer diameter of the cap body part is larger than the width of the arc-shaped groove, the rod body part includes a first cylinder part and a second cylinder part arranged in sequence, the outer diameter of the first cylinder part is larger than the outer diameter of the second cylinder part, the first cylinder part is located between the cap body part and the second cylinder part, the first cylinder part is located in the arc-shaped groove and can slide relative to the arc-shaped groove, and the second cylinder part is connected with the first fixed plate body after passing through the second fixed plate body.

[0018] In one embodiment of the utility model, the movable plate body is connected with a sensor for monitoring the movement state of the movable plate body.

[0019] In one embodiment of the utility model, the second fixed plate body has a first notch near one end of the rotating shaft, and baffles are formed on both sides of the first notch.

[0020] The utility model discloses still a kind of electric bed, including bedstead and the handrail subassembly of any one described above, the fixed component is fixed in the side of the bedstead, the bedstead is also connected with movable bed board.

[0021] The above technical scheme of the utility model has the following advantages compared with prior art:

[0022] The handrail subassembly and electric bed can effectively ensure the stability of the handrail, and also enable it to move flexibly within a predetermined range and reset in time. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to make the content of the utility model more easily be clearly understood, the utility model is further explained in detail below according to specific embodiments of the utility model and in conjunction with drawings.

[0024] Figure 1 is a structural schematic view of one angle of the handrail subassembly of the utility model;

[0025] Figure 2 is a structural schematic view of another angle of the handrail subassembly of the utility model;

[0026] Figure 3 is Figure 1 internal structure schematic view of electric box in it;

[0027] Figure 4 is Figure 1 structural schematic view of handrail subassembly after removing handrail and electric box in it;

[0028] Figure 5 is Figure 4 structural schematic view of another angle of structure in it;

[0029] Figure 6 is Figure 4 the front view of the structure in the embodiment;

[0030] Figure 7 is Figure 4 the structural schematic diagram of the structure in the embodiment after removing the first elastic member;

[0031] Figure 8 is Figure 7 the right view of the structure in the embodiment;

[0032] Figure 9 is Figure 7 the left view of the structure in the embodiment;

[0033] Figure 10 is Figure 8 the sectional view of the structure in the embodiment at A-A;

[0034] Figure 11 is Figure 10 the partial enlarged view of M in the embodiment;

[0035] Figure 12 is Figure 8 the sectional view of the structure in the embodiment at B-B;

[0036] Figure 13 is Figure 4 the structural diagram of the structure in the embodiment after removing the limiting shaft;

[0037] Figure 14 is Figure 13 the front view of the structure in the embodiment;

[0038] Figure 15 is the structural schematic diagram of the limiting shaft in the embodiment;

[0039] Figure 16 is Figure 15 the structural schematic diagram of the limiting shaft in another angle shown in the embodiment;

[0040] Figure 17 is the installation schematic diagram of the top bead and the bead body seat in the embodiment;

[0041] Figure 18 is the structural schematic diagram of the movable plate body in the embodiment;

[0042] Figure 19 is the installation schematic diagram of the handrail assembly on the electric bed in the embodiment;

[0043] Explanation of the drawing marks in the specification:

[0044] 10, first fixed plate body; 101, mounting portion;

[0045] 20, second fixed plate body; 201, third side plate part; 202, first notch; 203, baffle;

[0046] 30, movable plate body; 301, swing end; 3011, arc-shaped groove; 302, hinged end; 303, recessed part; 304, main body part; 305, first side plate part; 3051, positioning groove; 3052, limiting column; 306, second side plate part; 307, light-transmitting hole;

[0047] 40, handrail;

[0048] 50, rotating shaft;

[0049] 60, limiting shaft; 601, cap body part; 602, rod body part; 6021, first columnar part; 6022, second columnar part;

[0050] 70, first elastic member; 80, top bead; 90, bead body seat; 100, electrical box; 110, sensor. DETAILED DESCRIPTION

[0051] The utility model will be further described below in combination with the drawings and specific embodiments, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model. Obviously, the described embodiment is only a part of the embodiment of the present disclosure, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative, but not as any limitation of the present disclosure and its application or use.

[0052] In the description of the utility model, it is understood that the terms "vertical", "upper", "lower", "top", "side", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of the description of the present application and the simplification of the description, and do not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0053] In the description of the utility model, it is necessary to explain that, unless there are definite provisions and limitations, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, can be detachable connection, or integrally connected, can be mechanical connection, can be electrical connection, can be directly connected, can be indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0054] Embodiment

[0055] Reference Figures 1-2 The embodiment discloses a handrail assembly, with X direction, Y direction and Z direction, X direction, Y direction and Z direction are perpendicular to each other, wherein X direction is front-back direction, that is, the length direction of the head-to-tail connecting line of the electric bed, Y direction is left-right direction, that is, the width direction of the electric bed, and Z direction is height direction.

[0056] The above-mentioned handrail assembly comprises a fixed component and a movable component;

[0057] The fixed component is used to be fixed with the bed frame;

[0058] The movable component comprises a movable plate body 30 and a handrail 40, the handrail 40 is connected to the movable plate body 30 and moves together, and the movable plate body 30 is movably connected to the fixed component;

[0059] As shown in Figures 4-6 The movable plate body 30 has a swing end 301 and a hinged end 302 arranged oppositely along the X direction, the hinged end 302 is hinged to the fixed component through a rotating shaft 50, so that the interactive swing plate body can swing around the axis of the rotating shaft 50, as shown in Figures 12-13 The swing end 301 is provided with an arc-shaped groove 3011, and a limiting shaft 60 is movably connected in the arc-shaped groove 3011, one end of the limiting shaft 60 is located in the arc-shaped groove 3011, and the other end is connected to the fixed component, the above-mentioned arc-shaped groove 3011 plays a limiting role, and can limit the swing amplitude of the movable plate body 30, when the movable plate body 30 swings, it will slide relative to the limiting shaft 60, when the end of the arc-shaped groove 3011 moves to abut against the limiting shaft 60, so as to be blocked by the limiting shaft 60 and unable to continue to swing;

[0060] A first elastic member 70 is arranged between the fixed component and the swing end 301, for resetting the movable plate body 30.

[0061] It should be noted that the handrail 40 is fixed together with the movable plate body 30, and the two move together as a whole, when external force is applied to the handrail 40, the handrail 40 will drive the movable plate body 30 to swing relative to the fixed component.

[0062] Through the setting of the rotating shaft 50, the movable plate and the handrail 40 can be flexibly swung together around the axis of the rotating shaft 50.

[0063] In addition, in the above structure, through the multi-point support mode of the limiting shaft 60 and the rotating shaft 50, and the cooperation of the arc-shaped grooves 3011 and the limiting shaft 60, the support stability of the handrail 40 assembly is effectively improved, the eversion or inversion (swing in the Y direction) of the handrail 40 can be better prevented, the lateral extrusion of the sleeper, the mattress and the like can be better resisted, the handrail 40 can always be guaranteed to swing in the plane (XZ plane) within a certain amplitude, which is more beneficial to the flexible movement and centering reset of the handrail 40, in addition, through the setting of the first elastic member 70, the movable plate body 30 can be reset to the center by the elastic force after the swing of the movable plate body 30, so that the reliable reset of the handrail 40 is realized without being stuck. Therefore, the above structure can guarantee the stability of the handrail 40 while enabling it to move flexibly within a predetermined range and to reset to the center in time and effectively.

[0064] Further, the rotating shaft 50 and the fixed assembly are connected through a bearing, so as to better guarantee the swing stability and reduce the wear.

[0065] In some embodiments, as shown in Figures 13-14 The swing end 301 of the movable plate body 30 is provided with at least two arc-shaped grooves 3011, all the arc-shaped grooves 3011 are located on the same circumference, and the center of the circumference is located on the axis of the rotating shaft 50; that is, all the arc-shaped grooves 3011 are arranged around the rotating shaft 50, and the centers of the arc-shaped grooves 3011 are the same, which is located on the axis of the rotating shaft 50. Through the above structure, the reliability of the swing of the movable plate body 30 can be better guaranteed, and the swing flexibility within a certain amplitude can be better maintained.

[0066] For example, two arc-shaped grooves 3011 can be arranged on the swing end 301 of the movable plate body 30, which are located on the upper part and the lower part of the swing end 301 respectively.

[0067] The above arc-shaped grooves 3011 and the rotating shaft 50 are arranged on the two sides of the movable plate body 30 along the X direction respectively, which can make the movable plate body 30 obtain a larger deflection stroke with a minimum deflection angle, thereby amplifying the stroke of the sensing switch and making the monitoring of the signal more reliable.

[0068] When arranged specifically, the arrangement spacing of the arc-shaped grooves 3011 and the rotating shaft 50 in the X direction can be as large as possible.

[0069] Preferably, as shown in Figures 4-9The fixed assembly includes a first fixed plate body 10 and a second fixed plate body 20 fixed to each other, the first fixed plate body 10 is used to be fixed to the bed frame; the second fixed plate body 20 is located between the first fixed plate body 10 and the movable plate body 30, the hinged end 302 of the movable plate body 30 is hinged to the first fixed plate body 10 through the rotating shaft 50, one end of the limiting shaft 60 is located in the arc-shaped groove 3011, and the other end passes through the second fixed plate body 20 and is connected to the first fixed plate body 10, so that the limiting shaft 60 is fixedly arranged, and when the movable plate body 30 swings, the one end of the limiting shaft 60 located in the arc-shaped groove 3011 can relatively move along the arc-shaped groove 3011.

[0070] In some embodiments, as shown in Figure 12 , Figures 15-16 The limiting shaft 60 includes a cap body part 601 and a rod body part 602, the outer diameter of the cap body part 601 is greater than the width of the arc-shaped groove 3011, the rod body part 602 includes a first column body part 6021 and a second column body part 6022 arranged in sequence, the outer diameter of the first column body part 6021 is greater than the outer diameter of the second column body part 6022, the first column body part 6021 is located between the cap body part 601 and the second column body part 6022, the first column body part 6021 is located in the arc-shaped groove 3011 and can slide relative to the arc-shaped groove 3011, and the second column body part 6022 passes through the second fixed plate body 20 and is connected to the first fixed plate body 10, which can be connected by screw threads or other connection modes.

[0071] In some embodiments, as shown in Figure 8 , Figure 10 , Figure 11 and Figure 18 The handrail 40 assembly further includes a top bead 80, the top bead 80 is located between the fixed assembly and the movable plate body 30 and can move towards / away from the movable plate body 30, the fixed assembly can be connected to the top bead 80 through a second elastic member (not shown in the figure), so that the top bead 80 can be popped out or retracted in the Y direction, that is, it can move towards / away from the movable plate body 30, the side of the movable plate body 30 towards the second fixed plate body 20 is provided with a recess 303, and when the movable plate body 30 is in the balanced position, the top bead 80 is inserted into the recess 303.

[0072] Preferably, as shown in Figure 11 and Figure 17 The top bead 80 is connected to a bead seat 90, a thread can be arranged on the outer wall of the bead seat 92, the top bead 80 is connected to the first fixed plate body 10 through the thread, an internal sliding cavity is arranged, the sliding cavity is connected to the top bead 80 through a second elastic member, so that the top bead 80 can move in the sliding cavity, that is, the top bead 80 can do telescopic movement in the Y direction relative to the bead seat 90, when the top bead 80 is retracted relative to the bead seat 90, the second elastic member is compressed, and vice versa, the second elastic member is reset to be elongated to drive the top bead 80 to extend out.

[0073] It can be understood that, in the absence of external force applied to the handrail 40, that is, after the handrail 40 is loosened, the movable plate body 30 should be in a balanced position.

[0074] The first elastic member 70 is arranged between the movable plate body 30 and the second fixed plate to form a first reset structure, and the top bead 80 and the recess 303 form a second reset structure. Through the arrangement of the double reset structures, the reliable reset of the movable plate body 30 and the handrail 40 can be better ensured.

[0075] When the movable plate body 30 swings to a position far away from the balanced position, the top bead 80 and the recess 303 are separated, the top bead 80 is abutted by the movable plate body 30, and the second elastic member is in a compressed state. At this time, the reset of the movable plate body 30 mainly relies on the elastic force of the first elastic member 70, which pulls the movable plate body 30 to gradually approach the balanced position. At the same time, as the movable plate body 30 approaches the balanced position, the elastic force of the first elastic member 70 applied to it gradually decreases, and the reset force decreases. When approaching the balanced position, the top bead 80 will pop into the recess 303, thereby realizing the accurate reset of the movable plate body 30, thereby making up for the problem that the elastic force of the first elastic member 70 is small and cannot further ensure the reset effect when approaching the balanced position.

[0076] It can be understood that, when the movable plate body 30 approaches the balanced position, the top bead 80 will also approach the recess 303 on the movable plate body 30, and finally the edge of the recess 303 will contact the top bead 80. The second elastic member also gradually pops out, prompting the movable plate body 30 to further move slightly (small movement), so that the top bead 80 stably enters the center of the recess 303, thereby realizing the accurate reset of the movable plate body 30, and also facilitating stable reset.

[0077] In a preferred embodiment, as shown in Figure 4 The two ends of the second fixed plate body 20 in the Z direction are connected to the swing end 301 through independent first elastic members 70; that is, the first elastic members 70 are arranged at the upper and lower ends of the second fixed plate body 20, which can effectively reset the movable plate body 30 in any direction.

[0078] Further, the first elastic members 70 at the upper and lower ends of the second fixed plate body 20 can be arranged in an eight-shaped manner.

[0079] In some embodiments, the movable plate body 30 comprises a main body portion 304, the arc-shaped slot 3011 is located on the main body portion 304, the main body portion 304 is hingedly connected to the movable plate body 30 through the rotating shaft 50, and the two ends of the main body portion 304 along the X direction are respectively formed with a first side plate portion 305 and a second side plate portion 306, one end of the second fixed plate body 20 is formed with a third side plate portion 202, and the first elastic member 70 is connected between the third side plate portion 202 and the first side plate portion 305.

[0080] Further, as shown in Figure 4 , the first side plate portion 305 and the third side plate portion 202 are both provided with a positioning slot 3051, and the positioning slot 3051 is provided with a limiting column 3052, the positioning slots 3051 on the first side plate portion 305 and the third side plate portion 202 are one-to-one corresponding, one end of each first elastic member 70 is connected to the limiting column 3052 in the positioning slot 3051 of the third side plate portion 202, and the other end is connected to the limiting column 3052 in the corresponding positioning slot 3051 of the first side plate portion 305, so as to facilitate the installation and positioning of the first elastic member 70.

[0081] For example, the first side plate portion 305 and the third side plate portion 202 are both provided with two positioning slots 3051, each positioning slot 3051 on the first side plate portion 305 and the corresponding positioning slot 3051 of the third side plate portion 202 form a set of positioning structures, that is, there are two sets of positioning structures at this time, each set of positioning structures corresponds to one first elastic member 70, and in each set of positioning structures, one end of the first elastic member 70 is connected to the limiting column 3052 in one positioning slot 3051, and the other end is connected to the limiting column 3052 in the corresponding another positioning slot 3051.

[0082] Preferably, the above-mentioned handrail 40 is U-shaped, one end of the handrail 40 is fixed to the first side plate portion 305, and the other end is fixed to the second side plate portion 306.

[0083] Further, one end of the handrail 40 is fixed to the outside of the first side plate portion 305, and the other end is fixed to the outside of the second side plate portion 306, so as to facilitate the installation of other parts on the movable plate body 30 and avoid interference.

[0084] In some embodiments, as shown in Figure 4 , the upper portion of the first fixed plate body 10 is outwardly bent to form a mounting portion 101.

[0085] Specifically, the upper portion of the first fixed plate body 10 is bent in the Y direction to form the mounting portion 101, so as to be fixed to the bed frame.

[0086] Among them, the movable plate body 30 is connected with an electrical box 100, as shown in Figures 1-3 , the electrical box 100 is provided with a sensor 110 for monitoring the movement state of the movable plate body 30.

[0087] The sensor 110 can be a photoelectric sensor, a magnetic field sensor, a piezoelectric sensor, etc.

[0088] Further, the arc-shaped slot 3011 is located at one side of the sensor 110, and the rotating shaft 50 is located at the other side of the sensor 110. By increasing the arrangement spacing of the arc-shaped slot 3011 and the rotating shaft 50 in the X direction, the movable plate body 30 can obtain a larger deflection stroke with a minimum deflection angle, thereby amplifying the stroke of the sensing switch and making the monitoring of the signal more reliable.

[0089] In some embodiments, as shown in Figure 5 and Figure 9 The second fixed plate body 20 has a first notch 203 at one end close to the rotating shaft 50, and a baffle 204 is formed on both sides of the first notch 203. For example, when the sensor 110 is a photoelectric sensor, the baffle 204 will block the light emitted by the photoelectric sensor, thereby triggering the photoelectric sensor. For example, when the sensor 110 is a photoelectric sensor, a light-transmitting hole 307 should be provided on the movable plate body 30 to transmit the light emitted by the photoelectric sensor. When the movable plate body 30 is in the balanced position, the baffle 204 on both sides will not block the light-transmitting hole 307, that is, will not block the light emitted by the photoelectric sensor, so that the light can be emitted from the first notch 203 through the light-transmitting hole 307. When the movable plate body 30 swings, the light-transmitting hole 307 will be partially or completely blocked by the baffle 204, thereby changing the light signal. The photoelectric sensor detects the change and transmits it to the controller, which can control the lifting or lowering of the bed plate of the electric bed accordingly. The arrangement of the photoelectric sensor in the electrical box 100 is shown in Figure 3 .

[0090] In specific arrangement, the light-transmitting hole 307 can be provided at both upper and lower ends of the movable plate body 30.

[0091] When the above arrangement is adopted, the sensor 110 can also be a magnetic field sensor, and the principle is similar, except that the light signal change is replaced by the magnetic field signal change, which will not be described here.

[0092] The first elastic member 70 and the second elastic member can both be a spring, an elastic sheet or other elastic element.

[0093] Preferably, the movable plate body 30 can swing around the rotating shaft 50 within a range of ±1°, which not only prevents the large swing of the armrest 40 from affecting the support stability, but also allows the armrest 40 to move flexibly within the above swing range.

[0094] The above structure can make the armrest 40 rotate easily, and the armrest 40 can be easily rotated by pushing and pulling it with a force of not more than 2 kg.

[0095] As Figure 19 shown, the embodiment also discloses an electric bed, comprising a bed frame and the armrest assembly of any of the above-mentioned solutions, the fixing assembly is fixed on the side of the bed frame, and a movable bed board is further connected to the bed frame to be lifted or lowered.

[0096] A mattress is laid on the bed board, and the mattress can move together with the bed board; further, the upper part of the first fixing plate body 10 is bent in the Y direction to form a mounting portion 101, which is fixed on the bed frame, and if a mattress is laid on the bed board, the mounting portion 101 is located below the mattress, and only the armrest 40 can be exposed.

[0097] In some embodiments, the armrest assembly can be provided only on one side of the bed frame, or the armrest assembly can be provided on both sides of the bed frame.

[0098] The working process of the above-mentioned electric bed: a user lies on the electric bed, holds the armrest 40 and roughly pulls the armrest 40 in the forward (X direction) direction, the armrest 40 will slightly swing counterclockwise around the rotating shaft 50 together with the movable plate body 30, and the sensor 110 will control the bed board to be lifted after monitoring the change of the armrest 40, the user releases the armrest 40, the armrest 40 returns to the center and is reset, and the bed board maintains the lifted state.

[0099] The user holds the armrest 40 and roughly pushes the armrest 40 in the backward (the opposite direction of the X direction) direction, the armrest 40 will slightly swing clockwise around the rotating shaft 50 together with the movable plate body 30, and the sensor 110 will control the bed board to be lowered after monitoring the change of the armrest 40.

[0100] In the above-mentioned process, the sensor 110 can transmit a signal to the corresponding controller after monitoring the movement change of the armrest 40, and the controller controls the lifting / dropping action of the bed board.

[0101] The armrest assembly and the electric bed of the above-mentioned embodiment can ensure the stability of the armrest, so that the armrest is not easy to loosen and fall off, and is not easy to turn outward or inward, and can be flexibly moved within a preset range and can be timely and effectively reset to the center, thereby more favorably ensuring the accuracy and reliability of the sensing monitoring.

[0102] All the optional technical solutions mentioned above can be combined to form optional embodiments of the present application, that is, any number of embodiments can be combined to meet the needs of different application scenarios, which are all within the protection scope of the present application, and will not be described one by one here.

[0103] It should be noted that the above-mentioned embodiments are only examples for clearly illustrating the present application and are not intended to limit the present application. Based on the above-mentioned embodiments, other different forms of changes or modifications can be made by those skilled in the art. Here, all the embodiments are not required to be enumerated. The obvious changes or modifications derived from the above-mentioned embodiments are still within the scope of the present application.

Claims

1. A handrail assembly, characterized by: The utility model relates to a bed, including, Fixed assembly for and bed frame fixedly connected; Movable assembly, the handrail is connected on the movable plate body, the movable plate body is movably connected on the fixed assembly, the movable plate body has swing end and hinged end which are oppositely arranged along X direction, the hinged end is hinged through pivot and the fixed assembly, the swing end is provided with arc slot, the limit shaft is movably connected in the arc slot, one end of the limit shaft is located in the arc slot, and the other end is connected on the fixed assembly; First elastic piece, the fixed assembly and the swing end are provided with the first elastic piece.

2. The handrail assembly of claim 1, wherein: The swing end of the movable plate body is provided with at least two arc slots, all the arc slots are located on the same circumference, and the center of the circumference is located on the axis of the pivot.

3. The handrail assembly of claim 2, wherein: The fixed assembly includes the first fixed plate body and the second fixed plate body which are fixedly connected, the first fixed plate body is used for and bed frame fixedly connected, the second fixed plate body is located between the first fixed plate body and the movable plate body, the hinged end of the movable plate body is hinged through pivot and the first fixed plate body, one end of the limit shaft is located in the arc slot, and the other end is connected with the first fixed plate body after passing through the second fixed plate body.

4. The handrail assembly of claim 2, wherein: It also includes top bead, the fixed assembly is connected with the top bead through the second elastic piece, the top bead is used to move towards / away from the movable plate body, one side of the movable plate body towards the fixed assembly is provided with recess, and the top bead is inserted in the recess when the movable plate body is in the balanced position.

5. The handrail assembly of claim 4, wherein: The fixed assembly is connected with the bead seat, the sliding cavity is arranged in the bead seat, and the top bead is connected in the sliding cavity through the second elastic piece.

6. The handrail assembly of claim 3, wherein: The two ends of the second fixed plate body along Z direction are connected with the swing end through independent first elastic pieces, and the Z direction is perpendicular to the X direction.

7. The handrail assembly of claim 3, wherein: The movable plate body includes main body part, the arc slot is located on the main body part, the main body part is hinged with the movable plate body through pivot, the two ends of the main body part along X direction are formed with first side plate part and second side plate part respectively, one end of the second fixed plate body is formed with third side plate part, and the first elastic piece is connected between the third side plate part and the first side plate part.

8. The handrail assembly of claim 7, wherein: The first side plate part and third side plate part are provided with positioning groove, and the positioning groove is provided with limit post, the positioning groove on the first side plate part and third side plate part is one-to-one corresponding, one end of each first elastic piece is connected on the limit post in the positioning groove of third side plate part, and the other end is connected on the limit post in the corresponding positioning groove of first side plate part.

9. The handrail assembly of claim 7, wherein: The handrail is U-shaped, one end of the handrail is fixed with the first side plate part, and the other end is fixed with the second side plate part.

10. The handrail assembly of claim 3, wherein: The upper portion of the first fixed plate body is outwardly bent to form a mounting portion.

11. The handrail assembly of claim 1, wherein: The limiting shaft comprises a cap body and a rod body, the outer diameter of the cap body is greater than the width of the arc-shaped slot, the rod body comprises a first cylinder and a second cylinder arranged in sequence, the outer diameter of the first cylinder is greater than that of the second cylinder, the first cylinder is located between the cap body and the second cylinder, the first cylinder is located in the arc-shaped slot and can slide relative to the arc-shaped slot, and the second cylinder is connected with the first fixed plate body after penetrating through the second fixed plate body.

12. The handrail assembly of claim 1, wherein: The movable plate body is connected with a sensor for monitoring the motion state of the movable plate body.

13. The handrail assembly of claim 3, wherein: The second fixed plate body is provided with a first notch near one end of the rotating shaft, and a baffle is formed on both sides of the first notch.

14. An electric bed, characterized in that The bed frame is further connected with a movable bed plate.

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