Mattress with function of preventing pressure injury

Abstract

The invention relates to a mattress with a pressure injury prevention function, which comprises a base, a support plate arranged above the base, two connecting plates arranged on the left edge and the right edge of the base respectively, and a driving mechanism for driving the support plate to swing left and right in a reciprocating manner, the upper surface of the base protrudes upwards to form a plurality of vertical plates arranged at intervals in the front-back direction, the upper side face of the supporting plate is higher than the upper ends of the vertical plates, and first strip-shaped holes allowing the vertical plates to penetrate upwards are formed in the positions, corresponding to the vertical plates, of the supporting plate. The upper end and the lower end of the connecting plate are hinged to the supporting plate and the base respectively. Due to the adoption of the technical scheme, the mattress with the pressure injury prevention function can reduce the possibility of pressure injury on the body of a user.

Description

Technical Field

[0001] The invention relates to the technical field of mattresses, and in particular to a mattress with a pressure injury prevention function. Background Art

[0002] Pressure injury, also known as pressure ulcer, is caused by long-term pressure on the skin of the body, which affects blood circulation, leading to ulcers and necrosis of the skin and subcutaneous tissue due to nutritional deficiencies. Pressure injury itself is not a primary disease, but is mostly caused by improper care of people who are bedridden for a long time.

[0003] As the number of elderly people aged 80 and above in my country continues to rise, many of these elderly people will be bedridden for a long time due to illness or physical degeneration. In addition, some people will become disabled or semi-disabled due to accidents, illnesses, etc., and will be forced to stay in bed for a long time. For these people who stay in bed for a long time, pressure injuries are easy to occur on their bodies. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a mattress with a pressure injury prevention function to solve the technical problem that pressure injuries are easily generated in people who are bedridden for a long time.

[0005] The present invention is achieved through the following technical solutions:

[0006] A mattress with a pressure injury prevention function comprises a base, a support plate arranged above the base, two connecting plates respectively arranged at the left and right edges of the base, and a driving mechanism for driving the support plate to swing back and forth left and right, wherein the upper surface of the base protrudes upward to form a plurality of vertical plates arranged at intervals in the front-to-back direction, the upper side surface of the support plate is higher than the upper end of the vertical plate, a first strip hole for the vertical plate to pass upward is formed on the support plate at a position corresponding to each vertical plate, and the upper and lower ends of the connecting plate are hinged to the support plate and the base respectively.

[0007] Furthermore, the driving mechanism includes a seat body arranged on the right side of the mattress, a movable plate arranged on the seat body in a manner that can slide in the left and right directions, a vertical plate arranged on the movable plate, a connecting rod whose left end is fixedly connected to the right end of the support plate and whose right end is slidably connected to the vertical plate up and down, and a first driving part arranged on the seat body and used to drive the movable plate to slide back and forth left and right.

[0008] Furthermore, a second strip hole is formed on the movable plate, the second strip hole is arranged vertically, and the second strip hole communicates with the front and rear side surfaces of the movable plate;

[0009] The first driving part includes a first motor fixed on the base body, a reducer fixed on the base body and having an input shaft fixedly connected to an output shaft of the first motor, a first disc fixed on the output shaft of the reducer, and a first shaft rod eccentrically arranged on the first disc, wherein an axis line of the first shaft rod is parallel to an axis line of the first disc, the first shaft rod is arranged along a front-to-rear direction, and the first shaft rod is inserted into the second strip hole.

[0010] Furthermore, a plurality of channels are formed on the vertical plate, and the plurality of channels are arranged at intervals along the left-right direction, and the channels are connected to the upper and lower end surfaces of the vertical plate;

[0011] The massage part further comprises a plurality of massage rods which are arranged in a one-to-one correspondence in the plurality of the channels and a second driving part which is arranged on the base, the lower ends of the massage rods are supported on the second driving part, and the second driving part is used to drive the massage rods to reciprocate and rise and fall, so that the upper ends of the massage rods reciprocately protrude upward from the upper side surface of the vertical plate and descend to the lower side of the upper side surface of the vertical plate.

[0012] Furthermore, the base includes a bottom plate, a partition plate arranged above the bottom plate, and a connecting portion for connecting the bottom plate and the partition plate, and a through hole is formed on the partition plate at a position corresponding to each of the holes; the lower end of the connecting plate is hinged to the partition plate;

[0013] The second driving part includes a sliding plate arranged between the bottom plate and the partition plate and connected to the bottom plate in a slidable manner left and right, and a driving component arranged on the bottom plate and used to drive the sliding plate to slide back and forth left and right. The upper side surface of the sliding plate protrudes upward to form a plurality of strip-shaped protrusions, and the plurality of strip-shaped protrusions are evenly arranged along the left and right directions so that the upper edge of the cross-section of the sliding plate is in a wavy line shape; the lower end of the massage rod passes through the corresponding through hole and is supported in the groove between two adjacent strip-shaped protrusions.

[0014] Furthermore, the lower side surface of the sliding plate is recessed upward to form a strip groove arranged along the front-to-back direction; the driving assembly includes a second disc located between the base plate and the sliding plate and rotatably connected to the base plate, a second shaft rod eccentrically arranged on the upper side surface of the second disc, and a driving unit for driving the second disc to rotate, the second shaft rod is arranged vertically, the axis line of the second shaft rod is parallel to the axis line of the second disc, and the upper end of the second shaft rod is located in the strip groove.

[0015] Furthermore, the drive assembly also includes a bearing located between the base plate and the second disc, a bearing outer ring whose upper end is fixedly connected to the bearing, a first ring whose lower end is fixedly connected to the upper surface of the base plate, and a second ring whose upper end is fixedly connected to the middle part of the lower side surface of the second disc and the lower end is fixedly connected to the bearing inner ring of the bearing.

[0016] Furthermore, the massage rod includes a massage rod body and a bull's eye bearing disposed at the lower end of the massage rod body, wherein the ball of the bull's eye bearing faces downward, and the ball of the bull's eye bearing is supported in the groove.

[0017] Furthermore, the second disc is a first pulley; the driving unit includes a second motor located on the left side of the base plate and fixedly connected to the base plate, a second pulley fixedly mounted on the output shaft of the second motor, and a transmission belt disposed on the first pulley and the second pulley and used to link the first pulley and the second pulley.

[0018] Furthermore, it also includes a first coil spring whose right end is fixedly connected to the movable plate, a first conductive block fixedly connected to the left end of the first coil spring, and a second conductive block fixedly arranged on the seat body and located to the left of the first conductive block, the positive pole of the second motor is electrically connected to the positive pole of the power supply, the negative pole of the second motor is electrically connected to the first conductive block, and the second conductive block is electrically connected to the negative pole of the power supply; when the first shaft rod is located to the right of the axis of the first disk, the connecting plate is in a vertical state, the upper side surface of the support plate is higher than the upper end of the massage rod that can move upward, and the first conductive block and the second conductive block are in a disengaged state; when the first shaft rod is located to the left of the axis of the first disk, the upper side surface of the support plate is lower than the upper end of the massage rod that can move upward, and the first conductive block and the second conductive block are in a fitted state.

[0019] The beneficial effects of the present invention are:

[0020] After the user lies on the mattress with the function of preventing pressure injuries described in the present invention, it is only necessary to drive the support plate to swing left and right through the driving mechanism, so that the support plate and the plurality of vertical plates can alternately support the patient's body, and the position on the user's body that is supported and squeezed can be alternately changed, thereby reducing the possibility of pressure injuries on the user's body.

[0021] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of a mattress with a pressure injury prevention function according to the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the mattress with the function of preventing pressure injuries of the present invention when the support plate and the driving mechanism are omitted;

[0024] Figure 3 for Figure 2 Enlarged view of a in the middle;

[0025] Figure 4 It is a schematic diagram of the structure of the driving mechanism in the mattress with the function of preventing pressure injuries of the present invention;

[0026] Figure 5 It is a schematic diagram of the combined structure of the partition plate, the massage rod and the sliding plate in the mattress with the function of preventing pressure injury of the present invention;

[0027] Figure 6 It is a schematic diagram of the combined structure of the bottom plate, the slide rail and the driving assembly of the mattress with the function of preventing pressure injuries of the present invention;

[0028] Figure 7 It is a schematic diagram of the combined structure of the bearing, the first ring and the second ring in the mattress with the function of preventing pressure injuries of the present invention;

[0029] Figure 8 It is a schematic structural diagram of the air intake and exhaust part of the mattress with the function of preventing pressure injury of the present invention;

[0030] Fig. 9 A top view of the air intake and exhaust portion of the mattress with the function of preventing pressure injuries of the present invention;

[0031] Fig.10 for Fig. 9 AA section view.

[0032] In the figure: support plate-1; first connecting plate-2; vertical plate-3; first strip hole-4; seat body-5; moving plate-6; vertical plate-7; connecting rod-8; first slider-9; second slider-10; second strip hole-11; first motor-12; reducer-13; first disc-14; first shaft-15; bottom plate-16; partition-17; sliding plate-18; strip protrusion-19; second connecting plate-20; slide rail-21; second Disc-22; second shaft-23; bearing-24; first ring-25; second ring-26; massage rod body-27; bull's eye bearing-28; second motor-29; second pulley-30; transmission belt-31; first coil spring-32; first conductive block-33; second conductive block-34; rubber bag-35; first pad-36; second pad-37; second coil spring-38; support rod-39; through hole 40. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0036] In the above description of the present invention, it should be noted that the terms "one side", "the other side", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0037] In addition, the term "same" does not mean that the parts must be absolutely the same, but slight differences are allowed. The term "vertical" only means that the positional relationship between the parts is more vertical than "parallel", and does not mean that the structure must be completely vertical, but can be slightly tilted.

[0038] See also Figure 1-10 The present invention provides a technical solution: a mattress with a pressure injury prevention function, comprising a base, a support plate 1 arranged above the base, two first connecting plates 2 respectively arranged at the left and right edges of the base, and a driving mechanism for driving the support plate 1 to swing back and forth left and right, wherein the upper surface of the base protrudes upward to form a plurality of vertical plates 3 arranged at intervals in the front-to-back direction, the upper side surface of the support plate 1 is higher than the upper end of the vertical plate 3, and a first strip hole 4 for the vertical plate 3 to pass upward is formed on the support plate 1 at a position corresponding to each vertical plate 3, and the upper and lower ends of the first connecting plate 2 are hinged to the support plate 1 and the base respectively.

[0039] The mattress with the function of preventing pressure injury of the present invention is mainly used by people who need to stay in bed for a long time, that is, patients who need to stay in bed for a long time are users of the mattress with the function of preventing pressure injury of the present invention. When using the mattress with the function of preventing pressure injury of the present invention, the base is supported on the bed, the user lies on the support plate 1, and then the driving mechanism is used to drive the support plate 1 to swing back and forth. Since the upper and lower ends of the first connecting plate 2 are respectively hinged on the support plate 1 and the base, during the swinging process of the support plate 1, the first connecting plate 2 will reciprocatingly change from a vertical state to an inclined state and from an inclined state to a vertical state, so that the support plate 1 can be lifted and lowered reciprocatingly. When the support plate 1 drops a certain distance, the upper end of the vertical plate 3 can pass through the support plate 1 through the first strip hole 4, and the upper side surface of the support plate 1 can be lower than the upper end surface of the vertical plate 3. At this time, the support plate 1 is separated from the user's body, and the user is supported by multiple vertical plates 3. After the support plate 1 rises a certain distance, the upper side surface of the support plate 1 can be higher than the upper end surface of the vertical plate 3. At this time, the user is separated from the multiple vertical plates 3, and the user is supported by the support plate 1 again. After the user lies on the mattress with the anti-pressure injury function described in the present invention, it is only necessary to drive the support plate 1 to swing left and right through the driving mechanism, so that the support plate 1 and the plurality of vertical plates 3 can alternately support the patient's body, and can alternately change the position on the user's body that is supported and squeezed, thereby reducing the possibility of pressure injuries on the user's body.

[0040] In this embodiment, the driving mechanism includes a seat body 5 arranged on the right side of the mattress, a movable plate 6 arranged on the seat body 5 in a manner that can slide in the left and right directions, a vertical plate 7 arranged on the movable plate 6, a connecting rod 8 whose left end is fixedly connected to the right end of the support plate 1 and whose right end is slidably connected to the vertical plate 7 up and down, and a first driving part arranged on the seat body 5 and used to drive the movable plate 6 to slide back and forth left and right.

[0041] The movable plate 6 is driven to slide left and right by the first driving part, the vertical plate 7 moves left and right with the movable plate 6, the connecting rod 8 moves left and right with the vertical plate 7, the connecting rod 8 can push and pull the support plate 1 left and right, and the support plate 1 can swing left and right. With this structure, the driving mechanism can drive the support plate 1 to swing back and forth left and right.

[0042] During the reciprocating lifting process of the support plate 1, the support plate 1 can drive the connecting rod 8 to reciprocate. Since the right end of the connecting rod 8 is connected to the vertical plate 7 in a sliding manner, during the reciprocating lifting process of the connecting rod 8, the right end of the connecting rod 8 can slide back and forth on the vertical plate 7. With this structure, the driving mechanism will not hinder the lifting of the support plate 1, so that the support plate 1 can smoothly swing back and forth and can smoothly lift and reciprocate.

[0043] In this embodiment, the upper side of the seat body 5 is recessed downward to form a first slide groove, the first slide groove is arranged in the left-right direction, the slot size of the first slide groove is smaller than the slot cavity size, and specifically, the cross section of the first slide groove can be dovetail-shaped. A first slider 9 is arranged in the first slide groove, the first slider 9 cooperates with the first slide groove, and the lower end of the movable plate 6 is fixedly connected to the first slider 9. With this structure, the movable plate 6 can be arranged on the seat body 5 in a manner that it can slide in the left-right direction.

[0044] In this embodiment, a second slide groove is formed on the vertical plate 7, and the notch size of the second slide groove is smaller than the groove size of the second slide groove. Specifically, the cross section of the second slide groove can be dovetail-shaped. A second slider 10 is provided in the second slide groove, and the second slider 10 cooperates with the second slide groove; the right end of the connecting rod 8 is fixedly connected to the second slider 10. With this structure, the right end of the connecting rod 8 can be connected to the vertical plate 7 in an upward and downward sliding manner.

[0045] In this embodiment, a second strip hole 11 is formed on the movable plate 6. The second strip hole 11 is arranged vertically. The second strip hole 11 communicates with the front and rear side surfaces of the movable plate 6.

[0046] The first driving part includes a first motor 12 fixed on the base body 5, a reducer 13 fixed on the base body 5 and having an input shaft fixedly connected to an output shaft of the first motor 12, a first disc 14 fixed on the output shaft of the reducer 13, and a first shaft 15 eccentrically arranged on the first disc 14, wherein the axis line of the first shaft 15 is parallel to the axis line of the first disc 14, the first shaft 15 is arranged along the front-to-back direction, and the first shaft 15 is inserted into the second strip hole 11.

[0047] When the first motor 12 is started, the output shaft of the first motor 12 can drive the input shaft of the reducer 13 to rotate, and then the output shaft of the reducer 13 can rotate, and the first disc 14 can rotate under the driving action of the output shaft of the reducer 13, and the first disc 14 can drive the first shaft 15 to make a circular motion around the axis of the first disc 14. During the circular motion of the first shaft 15, the first shaft 15 can reciprocate up and down in the second strip hole 11 and drive the moving plate 6 to slide back and forth. With this structure, the first driving part can drive the moving plate 6 to slide back and forth.

[0048] In this embodiment, a plurality of channels are formed on the vertical plate 3, and the plurality of channels are arranged at intervals along the left-right direction, and the channels communicate with the upper and lower end surfaces of the vertical plate 3;

[0049] The massage part further comprises a plurality of massage rods which are arranged in a one-to-one correspondence in the plurality of the channels and a second driving part which is arranged on the base, the lower ends of the massage rods are supported on the second driving part, and the second driving part is used to drive the massage rods to reciprocate and rise and fall, so that the upper ends of the massage rods reciprocately protrude upward from the upper side surface of the vertical plate 3 and descend to the lower side of the upper side surface of the vertical plate 3.

[0050] When using the mattress with anti-pressure injury function described in the present invention, the massage rod can be driven to rise and fall reciprocally by the second driving unit, so that the upper end of the massage rod reciprocatingly protrudes upward from the upper side of the vertical plate 3 and descends to the lower side of the upper side of the vertical plate 3.

[0051] During the reciprocating lifting and lowering process of the massage rod, the upper end of the massage rod can alternately squeeze and detach from the user's body to massage the user's body. Under the massaging action of the massage rod, the blood circulation of the user's body can be promoted, and the possibility of pressure injuries on the user's body can be further reduced. The maximum height that the upper end of the pressing rod can protrude from the upper side of the vertical plate 3 is fixed. During the reciprocating lifting and lowering process of the support plate 1, the pressing depth of the massage rod on the user's body can be cyclically changed, that is, the pressing force of the lifting rod on the user's body can be cyclically changed, which can improve the massage effect on the user's body.

[0052] In this embodiment, when the first connecting plate 2 is in a vertical state, the upper end of the massage rod can move upward to a limit position lower than the upper side surface of the support plate 1 .

[0053] During the reciprocating lifting process of the support plate 1, when the upper side surface of the support plate 1 is at a certain height, the upper side surface of the support plate 1 can be in a state higher than the upper limit position of the upper end of the massage rod that can be moved upward. When the upper side surface of the support plate 1 is in a state higher than the upper limit position of the upper end of the massage rod that can be moved upward, the upper end of the massage rod cannot contact the patient's body, so that the user can be massaged intermittently, which can reduce the possibility of the user's body being injured due to continuous massage.

[0054] In this embodiment, the base includes a bottom plate 16, a partition plate 17 disposed above the bottom plate 16, and a connecting portion for connecting the bottom plate 16 and the partition plate 17, and a through hole is formed on the partition plate 17 at a position corresponding to each of the channels; the lower end of the first connecting plate 2 is hinged to the partition plate 17, and the vertical plate 3 protrudes upward from the upper side of the partition plate 17;

[0055] The second driving part includes a sliding plate 18 which is arranged between the bottom plate 16 and the partition plate 17 and can be slidably connected to the bottom plate 16 left and right, and a driving component which is arranged on the bottom plate 16 and is used to drive the sliding plate 18 to slide back and forth left and right. The upper side surface of the sliding plate 18 protrudes upward to form a plurality of strip protrusions 19, and the plurality of strip protrusions 19 are evenly arranged along the left and right directions so that the upper edge of the cross section of the sliding plate 18 is in the shape of a wavy line; the lower end of the massage rod passes through the corresponding through hole and is supported in the groove between two adjacent strip protrusions 19.

[0056] The driving assembly drives the sliding plate 18 to slide back and forth, and each of the massage rods can move relative to the sliding plate 18 and the plurality of strip protrusions 19 in the left and right directions. The lower end of the massage rod can cyclically move upward to the top of the strip protrusion 19 and downward to the groove, so that the massage rod can be lifted and lowered reciprocally. With this structure, the second driving unit can drive the massage rod to be lifted and lowered reciprocally.

[0057] Since the upper edge of the cross section of the sliding plate 18 is in a wavy shape, the left and right side surfaces of the strip-shaped protrusion 19 are both inclined, and the left and right side surfaces of the strip-shaped protrusion 19 form an eight-shaped structure that opens downward. During the relative movement of the massage rod, the sliding plate 18 and the plurality of strip-shaped protrusions 19 in the left and right directions, after the lower end of the massage rod passes through the bottom of the groove, the left side surface or the right side surface of the strip-shaped protrusion 19 can squeeze the lower end of the massage rod, so that the lower end of the massage rod can move upward, and the massage rod can move upward.

[0058] During the relative movement of the massage rod, the sliding plate 18 and the plurality of strip-shaped protrusions 19 in the left-right direction, after the lower end of the massage rod passes the top of the strip-shaped protrusion 19, the lower end of the massage rod can move downward along the left side or right side of the strip-shaped protrusion under the action of its own gravity, and the massage rod can move downward.

[0059] In this embodiment, the connecting portion includes a plurality of second connecting plates 20, the upper ends of the second connecting plates 20 are fixedly connected to the partition 17, and the lower ends of the second connecting plates 20 are fixedly connected to the bottom plate 16. With this structure, the connecting portion can connect the bottom plate 16 and the partition 17.

[0060] In this embodiment, the lower side of the sliding plate 18 is recessed upward to form a third slide groove, and the third slide groove is arranged in the left-right direction. The notch size of the third slide groove is smaller than the groove cavity size of the third slide groove. Specifically, the cross section of the third slide groove can be dovetail-shaped. A slide rail 21 is arranged in the third slide groove, and the slide rail 21 cooperates with the third slide groove. The lower end of the slide rail 21 is fixedly connected to the bottom plate 16. With this structure, the sliding plate 18 can be connected to the bottom plate 16 in a left-right sliding manner.

[0061] In this embodiment, the lower side surface of the sliding plate 18 is recessed upward to form a strip groove (not shown in the figure) arranged along the front-to-back direction; the driving assembly includes a second disk 22 located between the base plate 16 and the sliding plate 18 and rotatably connected to the base plate 16, a second shaft rod 23 eccentrically arranged on the upper side surface of the second disk 22, and a driving unit for driving the second disk 22 to rotate, the second shaft rod 23 is arranged vertically, the axis line of the second shaft rod 23 is parallel to the axis line of the second disk 22, and the upper end of the second shaft rod 23 is located in the strip groove.

[0062] The second disc 22 is driven to rotate by the driving unit, and the second disc 22 can drive the second shaft 23 to make a circular motion around the axis of the second disc 22. During the circular motion of the second shaft 23, the second shaft 23 can move back and forth in the strip groove and drive the sliding plate 18 to slide back and forth. With this structure, the driving assembly can drive the sliding plate 18 to slide back and forth.

[0063] In this embodiment, the driving assembly further includes a bearing 24 located between the bottom plate 16 and the second disc 22, a first ring 25 having an upper end fixedly connected to an outer ring of the bearing 24 and a lower end fixedly connected to an upper surface of the bottom plate 16, and a second ring 26 having an upper end fixedly connected to a middle portion of a lower side surface of the second disc 22 and a lower end fixedly connected to an inner ring of the bearing 24. With this structure, the second disc 22 can be rotatably connected to the bottom plate 16.

[0064] In this embodiment, the massage rod includes a massage rod body 27 and a bull's eye bearing 28 disposed at the lower end of the massage rod body 27 , wherein the ball of the bull's eye bearing 28 faces downward, and the ball of the bull's eye bearing 28 is supported in the groove.

[0065] When the left side or right side of the strip protrusion 19 squeezes the lower end of the massage rod, the ball of the bull's eye bearing 28 can roll on the left side or right side of the strip protrusion 19, making it easier for the lower end of the massage rod to move upward. When the lower end of the massage rod moves downward along the left side or right side of the strip protrusion 19 under the action of its own gravity, the ball of the bull's eye bearing 28 can also roll on the left side or right side of the strip protrusion 19, making it easier for the lower end of the massage rod to move downward.

[0066] In this embodiment, the second disc 22 is a first pulley; the driving unit includes a second motor 29 located on the left side of the base plate 16 and fixedly connected to the base plate 16, a second pulley 30 fixedly mounted on the output shaft of the second motor 29, and a transmission belt 31 provided on the first pulley and the second pulley 30 and used to link the first pulley and the second pulley 30.

[0067] The second motor 29 can drive the second pulley 30 to rotate, and the first pulley can be linked with the first pulley through the transmission belt 31. With this structure, the driving unit can drive the first pulley to rotate, and the driving unit can also drive the second disc 22 to rotate.

[0068] In this embodiment, it also includes a first coil spring 32 whose right end is fixedly connected to the movable plate 6, a first conductive block 33 fixedly connected to the left end of the first coil spring 32, and a second conductive block 34 fixedly arranged on the seat body 5 and located on the left side of the first conductive block 33. The positive pole of the second motor 29 is electrically connected to the positive pole of the power supply, the negative pole of the second motor 29 is electrically connected to the first conductive block 33, and the second conductive block 34 is electrically connected to the negative pole of the power supply. When the first shaft rod 15 is located to the right of the axis of the first disk 14, the first connecting plate 2 is in a vertical state, the upper side surface of the support plate 1 is higher than the upper end of the massage rod that can move upward, and the first conductive block 33 and the second conductive block 34 are in a disengaged state. When the first shaft rod 15 is located to the left of the axis of the first disk 14, the upper side surface of the support plate 1 is lower than the upper end of the massage rod that can move upward, and the first conductive block 33 and the second conductive block 34 are in a fitted state.

[0069] In the process of the first disk 14 driving the first shaft 15 to make circular motion, the position of the first shaft 15 in the left and right directions can be continuously and cyclically changed, so that the moving plate 6 can alternately move left and right. After the moving plate 6 moves a certain distance to the left, the moving plate 6 can drive the first conductive block 33 to contact the second conductive block 34, so that the second motor 29 is powered on and rotates. In the process of the moving plate 6 continuing to move to the left, the moving plate 6 can compress the first coil spring 32 to the left. In the process of the moving plate 6 moving to the left to the limit position and moving to the right, the right end of the first coil spring 32 can gradually elastically reset to the right. After the moving plate 6 moves a certain distance to the right, the moving plate 6 can pull the first coil spring 32 to the right, so that the first coil spring 32 pulls the first conductive block 33 to the right, so that the first conductive block 33 is separated from the second conductive block 34, and the motor is powered off and stops working. Under the action of the driving mechanism, the second motor 29 can alternately work and stop working, so that the motor will not work all the time, which can save energy consumption. During the process of the first coil spring 32 being compressed and the process of the right end of the first coil spring 32 gradually elastically returning to the right, the first conductive block 33 and the second conductive block 34 both maintain contact, and the second motor 29 is in a started state. By setting the first coil spring 32, the second motor 29 can maintain a long working state after each start.

[0070] When the first shaft 15 is located on the left side of the axis of the first disk 14, the upper side of the support plate 1 is lower than the upper limit position of the massage rod, and the first conductive block 33 and the second conductive block 34 are in contact. The second motor 29 can be in working state when the upper side of the support plate 1 is at a position lower than the upper limit position of the massage rod, that is, during a certain period of time when the motor is in working state, the massage rod can massage the user's body.

[0071] Because when the first shaft rod 15 is located directly to the right of the axis of the first disk 14, the first connecting plate 2 is in a vertical state, the upper side surface of the support plate 1 is higher than the upper end of the massage rod's upper limit position of upward movement, and the first conductive block 33 and the second conductive block 34 are in a disengaged state; the second motor 29 can stop working when the upper side surface of the support plate 1 is at a position higher than the upper end of the massage rod's upper limit position of upward movement, that is, the second motor 29 can stop working when the user's body is at a certain height that the upper end of the massage rod cannot reach, which can reduce the useless work done by the second motor 29.

[0072] In this embodiment, an air intake and exhaust portion is provided between each two adjacent vertical plates 3, and the air intake and exhaust portion includes a rubber bag 35, a first pad 36, a second pad 37, a plurality of second coil springs 38 and a plurality of support rods 39. The lower end of the rubber bag 35 is fixed on the partition 17, the first pad 36, the second pad 37 and the plurality of second coil springs 38 are all located in the rubber bag 35, the first pad 36 is fixed on the bottom wall of the rubber bag 35, the second pad 37 is fixed on the top wall of the rubber bag 35, the upper and lower ends of the second coil spring 38 are fixedly connected to the second pad 37 and the first pad 36 respectively, the support rod 39 is fixedly connected to the upper surface of the rubber bag 35, the upper end of the support rod 39 abuts against the support plate 1, and a plurality of through holes 40 are formed on the second pad 37, and the upper ends of the through holes 40 extend upward and pass through the upper side surface of the rubber bag 35.

[0073] During the downward movement of the support plate 1, the support plate 1 can press downward the upper side wall of the rubber bag 35 and the second pad 37 through the support rod 39, so that the second coil spring 38 is compressed, and then the rubber bag 35 is compressed, so that the air in the rubber bag 35 can be discharged upward from the multiple perforations 40; during the upward movement of the support plate 1, the second coil spring 38 elastically recovers and pushes the second pad 37 and the upper side wall of the rubber bag 35 upward, so that the rubber bag 35 can gradually expand and outside air can be sucked into the rubber bag 35.

[0074] In the process of the support plate 1 moving alternately downward and upward, the rubber bag 35 can alternately discharge air and inhale air through the perforation 40, thereby disturbing the air under the user, accelerating the air flow under the user, accelerating the evaporation of the user's sweat, and making it easier to keep the body surface of the user on one side supported on the mattress with anti-pressure injury function described in the present invention dry.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A mattress with a pressure injury prevention function, characterized in that: The invention comprises a base, a support plate arranged above the base, two connecting plates respectively arranged at the left and right edges of the base, and a driving mechanism for driving the support plate to swing back and forth left and right. The upper surface of the base protrudes upward to form a plurality of vertical plates arranged at intervals in the front-to-back direction. The upper side surface of the support plate is higher than the upper end of the vertical plate. A first strip hole for the vertical plate to pass upward is formed on the support plate at a position corresponding to each vertical plate. The upper and lower ends of the connecting plate are respectively hinged to the support plate and the base.

2. The mattress with pressure injury prevention function according to claim 1, characterized in that: The driving mechanism includes a seat body arranged on the right side of the mattress, a movable plate arranged on the seat body in a manner that can slide in the left and right directions, a vertical plate arranged on the movable plate, a connecting rod whose left end is fixedly connected to the right end of the support plate and whose right end is slidably connected to the vertical plate up and down, and a first driving part arranged on the seat body and used to drive the movable plate to slide back and forth left and right.

3. The mattress with pressure injury prevention function according to claim 2, characterized in that: A second strip hole is formed on the movable plate, the second strip hole is arranged in a vertical direction, and the second strip hole communicates with the front and rear side surfaces of the movable plate; The first driving part includes a first motor fixed on the base body, a reducer fixed on the base body and having an input shaft fixedly connected to an output shaft of the first motor, a first disc fixed on the output shaft of the reducer, and a first shaft rod eccentrically arranged on the first disc, wherein an axis line of the first shaft rod is parallel to an axis line of the first disc, the first shaft rod is arranged along a front-to-rear direction, and the first shaft rod is inserted into the second strip hole.

4. The mattress with pressure injury prevention function according to claim 3, characterized in that: A plurality of channels are formed on the vertical plate, the plurality of channels are arranged at intervals along the left-right direction, and the channels are connected to the upper and lower end surfaces of the vertical plate; The massage part further comprises a plurality of massage rods which are arranged in a one-to-one correspondence in the plurality of the channels and a second driving part which is arranged on the base, the lower ends of the massage rods are supported on the second driving part, and the second driving part is used to drive the massage rods to reciprocate and rise and fall, so that the upper ends of the massage rods reciprocately protrude upward from the upper side surface of the vertical plate and descend to the lower side of the upper side surface of the vertical plate.

5. The mattress with pressure injury prevention function according to claim 4, characterized in that: The base comprises a bottom plate, a partition plate arranged above the bottom plate, and a connecting portion for connecting the bottom plate and the partition plate, and a through hole is formed on the partition plate at a position corresponding to each of the holes; the lower end of the connecting plate is hinged to the partition plate; The second driving part includes a sliding plate arranged between the bottom plate and the partition plate and connected to the bottom plate in a slidable manner left and right, and a driving component arranged on the bottom plate and used to drive the sliding plate to slide back and forth left and right. The upper side surface of the sliding plate protrudes upward to form a plurality of strip-shaped protrusions, and the plurality of strip-shaped protrusions are evenly arranged along the left and right directions so that the upper edge of the cross-section of the sliding plate is in a wavy line shape; the lower end of the massage rod passes through the corresponding through hole and is supported in the groove between two adjacent strip-shaped protrusions.

6. The mattress with pressure injury prevention function according to claim 5, characterized in that: The lower side surface of the sliding plate is recessed upward to form a strip groove arranged in the front-to-back direction; the driving assembly includes a second disc located between the base plate and the sliding plate and rotatably connected to the base plate, a second shaft rod eccentrically arranged on the upper side surface of the second disc, and a driving unit for driving the second disc to rotate, the second shaft rod is arranged vertically, the axis line of the second shaft rod is parallel to the axis line of the second disc, and the upper end of the second shaft rod is located in the strip groove.

7. The mattress with pressure injury prevention function according to claim 6, characterized in that: The drive assembly also includes a bearing located between the base plate and the second disc, a first ring with an outer ring of the bearing fixedly connected to the upper end and a lower end of the bearing, and a second ring with an upper end fixedly connected to the middle of the lower side surface of the second disc and a lower end of the bearing inner ring of the bearing.

8. The mattress with pressure injury prevention function according to claim 5, characterized in that: The massage rod comprises a massage rod body and a bull's eye bearing arranged at the lower end of the massage rod body, wherein the ball of the bull's eye bearing faces downward and the ball of the bull's eye bearing is supported in the groove.

9. The mattress with pressure injury prevention function according to claim 6, characterized in that: The second disc is the first pulley; the driving unit includes a second motor located on the left side of the base plate and fixedly connected to the base plate, a second pulley fixedly mounted on the output shaft of the second motor, and a transmission belt disposed on the first pulley and the second pulley and used to link the first pulley and the second pulley.

10. The mattress with the function of preventing pressure injuries according to claim 9, characterized in that: It also includes a first coil spring whose right end is fixedly connected to the movable plate, a first conductive block fixedly connected to the left end of the first coil spring, and a second conductive block fixedly arranged on the seat body and located on the left side of the first conductive block, the positive pole of the second motor is electrically connected to the positive pole of the power supply, the negative pole of the second motor is electrically connected to the first conductive block, and the second conductive block is electrically connected to the negative pole of the power supply; when the first shaft rod is located to the right of the axis of the first disk, the connecting plate is in a vertical state, the upper side surface of the support plate is higher than the upper end of the massage rod that can move upward, and the first conductive block and the second conductive block are in a disengaged state; when the first shaft rod is located to the left of the axis of the first disk, the upper side surface of the support plate is lower than the upper end of the massage rod that can move upward, and the first conductive block and the second conductive block are in a fitted state.

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