CN212439105U - Seat capable of assisting human body to sit up - Google Patents
Seat capable of assisting human body to sit up Download PDFInfo
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- CN212439105U CN212439105U CN202022066647.8U CN202022066647U CN212439105U CN 212439105 U CN212439105 U CN 212439105U CN 202022066647 U CN202022066647 U CN 202022066647U CN 212439105 U CN212439105 U CN 212439105U
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Abstract
The utility model discloses a seat which can assist the human body to sit up, comprising a seat frame and a seat surface; the seat frame comprises a base and telescopic supporting mechanisms arranged on two sides of the base, each telescopic supporting mechanism comprises a push rod, a rear vertical rod, a front vertical rod, an upper cross rod and a lower cross rod, two ends of each upper cross rod and two ends of each lower cross rod are respectively hinged with the front vertical rod and the rear vertical rod to form a parallel four-bar mechanism, and the push rods drive the upper cross rods and the lower cross rods to swing up and down along hinge joints between the upper cross rods and the rear vertical rods; the two sides of the seat surface are respectively hinged with the front vertical rods positioned on the two sides of the seat surface, and the transmission mechanism drives the seat surface to rotate along the hinged point between the seat surface and the front vertical rods when the upper cross rod swings. The utility model discloses combine the human engineering principle, the human low limbs motion of profile modeling in its action process, the route is sat to the fitting human body to provide whole boosting effort at this in-process, can solve the painful, degenerate etc. problem that the weak crowd of standing up and sitting up inconveniently of knee joint well.
Description
Technical Field
The utility model relates to a life auxiliary devices field, in particular to can assist human body to stand up seat.
Background
As is known, the two legs are important parts in the human body structure, and various compound exercises such as walking, sitting and the like are completed through the knee joint structure, but for people with knee joints and limbs suffering from fatigue caused by aging and degeneration or other special reasons, people often suffer headache due to simple daily life such as toilet, bathing and the like. In order to improve the life quality of the people and reduce the burden of the family, the seat capable of automatically assisting the human body to sit up is urgently developed.
At present, in the prior art, an auxiliary rising seat, such as a full-automatic rising and sitting auxiliary device in patent document CN201510192873.1, is lifted and fitted to a human body by a push rod; however, the motor and the hydraulic cylinder for powering the push rod are expensive to manufacture and complex in structure, and the rotation angle of the seat plate depends on the operation stroke of the lifting device, so that the requirement on the lifting device is high and the use is uncomfortable. As a multifunctional standing and sitting auxiliary machine in patent document CN201320402970.5, the multifunctional standing and sitting auxiliary machine has a simple structure, only needs to mount the seat board on the vertical supporting rods, and provides partial supporting force by the armpit supporting rods, so that the cost is low; however, the device drags the whole body only through the armpit support, and the comfort level is extremely poor, so the device is not suitable for wide hypodynamia people. In another example, in an auxiliary toilet device for a leg injury patient in patent document cn201420186203.x, a hydraulic rod pushes a chair surface to be attached to the rising and falling of a human body, so as to assist a user in toilet; but the limitation of its use is too big, must the fixed installation on the closestool to the seat and the bracing piece be line contact, the reliability is poor, and the risk of heeling is big.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the structure complicacy that exists among the prior art, function singleness, humanized experience relatively poor scheduling problem in the use, provide a can assist the human seat of sitting up.
In order to solve the technical problem, the utility model discloses a technical scheme as follows:
a seat capable of assisting a human body to sit up comprises a seat frame and a seat surface;
the seat frame comprises a base and telescopic supporting mechanisms arranged on two sides of the base, each telescopic supporting mechanism comprises a push rod, a rear vertical rod, a front vertical rod, an upper transverse rod and a lower transverse rod, one end of each rear vertical rod is fixedly arranged on the base, two ends of each upper transverse rod and two ends of each lower transverse rod are respectively hinged with the front vertical rod and the rear vertical rod to form a parallel four-bar mechanism, the push rods are arranged on the base, and the push rods drive the upper transverse rods and the lower transverse rods to swing up and down along hinge joints between the upper transverse rods and the rear vertical rods;
the two sides of the seat surface are respectively hinged with the front vertical rods positioned on the two sides of the seat surface, a transmission mechanism is arranged between the parallel four-bar linkage mechanism and the seat surface, and the transmission mechanism drives the seat surface to rotate along a hinged point between the seat surface and the front vertical rods when the upper cross rod swings.
Among the above-mentioned technical scheme, furtherly, drive mechanism is including fixed first external gear that sets up on seat face one side, with first external gear meshing's synchro gear, first connecting rod gear, second connecting rod gear and the fixed first internal gear that sets up on the montant in the front, first connecting rod gear and synchro gear are connected respectively in the front on the articulated shaft between montant and the last horizontal pole, second connecting rod gear sets up between first connecting rod gear and first internal gear, second connecting rod gear respectively with first connecting rod gear and first internal gear between the meshing be connected, second connecting rod gear passes through the gear shaft and is connected with rotating between the last horizontal pole.
In the above technical scheme, further, transmission mechanisms are respectively arranged on two sides of the seat surface.
In the above technical solution, further, the diameters of the first external gear and the synchronizing gear are larger than the diameter of the first link gear.
In the above technical solution, further, the first external gear has a sector structure.
Among the above-mentioned technical scheme, further, first internal gear is fan-shaped structure, first internal gear both ends respectively with before between the montant fixed connection.
Among the above-mentioned technical scheme, furtherly, the push rod is under initial condition, and the seat personally submits horizontal setting, when the push rod extends, the seat face risees and its front end rotates downwards.
In the above technical scheme, further, one end of the push rod is hinged with the base, and the other end of the push rod is hinged with the upper cross rod.
In the above technical scheme, further, the base is provided with rollers.
Among the above-mentioned technical scheme, further, be provided with the handrail on the preceding montant.
The utility model discloses the beneficial effect who has:
1) the utility model discloses in adopt parallel four-bar linkage, through the lift that the parallel four-bar linkage of drive realized the seat face, set up drive mechanism simultaneously between parallel four-bar linkage and seat face, drive the seat face and rotate in the action of parallel four-bar linkage, realize that the seat face goes up and down and rotary motion's compound linkage, realize the simulation of sitting the route to the human body, provide the boosting effort for the human body sits the motion.
2) The utility model discloses combine the human engineering principle, the human low limbs motion of profile modeling in its action process, the route is sat to the fitting human body to provide whole boosting effort at this in-process, can solve the painful, degenerate etc. problem that the weak crowd of standing up and sitting up inconveniently of knee joint well.
3) The utility model discloses simple structure, convenient operation only needs the concertina movement through control push rod can realize the lift and the rotation of seat face, and the help user accomplishes and sits the action.
4) The utility model discloses a parallel four-bar linkage structure and gear drive support and the transmission to the seat face, and the action is reliable and stable, uses comfortable safety.
Drawings
Fig. 1 is a schematic view of the initial state structure of the seat of the present invention.
Fig. 2 is a schematic view of the sitting-up state of the chair of the present invention.
Fig. 3 is a partial schematic view of a portion a of fig. 1.
Fig. 4 is a schematic structural view of a transmission mechanism according to a first embodiment of the present invention.
Fig. 5 is a schematic structural view of a transmission mechanism in the second embodiment of the present invention.
Fig. 6 is a schematic structural view of a transmission mechanism in the third embodiment of the present invention.
Fig. 7 is a schematic structural view of a transmission mechanism in the fourth embodiment of the present invention.
Fig. 8 is a schematic structural view of a fifth transmission mechanism according to an embodiment of the present invention.
In the figure: 1. the seat comprises a base, 2, a seat surface, 3, a push rod, 4, a rear vertical rod, 5, a front vertical rod, 6, an upper cross rod, 7 and a lower cross rod;
8. a transmission mechanism 801, a first external gear 802, a synchronous gear 803, a first link gear 804, a second link gear 805, a first internal gear 806, a hinge shaft 807 and a gear shaft;
811. a second external gear 812, a second drive gear;
821. a third external gear 822, a third synchronizing wheel 823, a third intermediate wheel 824 and a third transmission wheel;
831. a fourth external gear 832, a fourth synchronous wheel 833, a fourth intermediate wheel 834, a fourth driving wheel 835 and a fourth internal gear;
841. a fifth driven wheel 842, a fifth synchronizing wheel 843, a fifth intermediate wheel 844, a fifth driving wheel 845 and a belt;
9. roller 10, armrest 11, backrest.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments.
Example one
As shown in fig. 1 and 2, the seat capable of assisting a human body to sit up in the present embodiment includes a seat frame and a seat surface 2.
The seat frame includes base 1 and the flexible supporting mechanism of setting in the base both sides, flexible supporting mechanism includes push rod 3, back montant 4, preceding montant 5, goes up horizontal pole 6 and sheer pole 7, the fixed setting of 4 one ends of back montant is on base 1, and vertical setting leans on the position of rear side on base 1, preceding montant 5 sets up along vertical direction, is located the position that leans on the middle part above the base. Two ends of the upper cross rod 6 and the lower cross rod 7 are respectively hinged with the front vertical rod 5 and the rear vertical rod 4 to form a parallel four-bar mechanism, the push rod 3 is arranged on the base 1, and the push rod 3 drives the upper cross rod and the lower cross rod to swing up and down along a hinged point between the upper cross rod and the rear vertical rod.
In the embodiment, one end of the push rod 3 is hinged with the base 1, and the other end is hinged with the upper cross rod 6. When the push rod extends, the upper cross rod is driven to rotate, and at the moment, the front vertical rod in the parallel four-bar mechanism moves upwards to drive the seat surface to ascend; and the parallel four-bar linkage mechanism drives the seat surface to descend when the push rod retracts.
The two sides of the seat surface 2 are respectively hinged with the front vertical rods 5 positioned on the two sides of the seat surface, a transmission mechanism 8 is arranged between the parallel four-bar linkage mechanism and the seat surface, and the transmission mechanism 8 drives the seat surface to rotate along the hinged point between the seat surface and the front vertical rods when the upper transverse rod swings.
As shown in fig. 1, in the initial state of the push rod 3, the seat surface is arranged horizontally; when the push rod extends, the parallel four-bar linkage mechanism and the transmission mechanism act to drive the seat face to rise and the front end of the seat face to rotate downwards to form the state shown in figure 2, so that the simulation of the sitting-up movement of the human body is realized, and the seat provides the boosting acting force for the human body when sitting up.
Referring to fig. 3 and 4, the transmission mechanism 8 in this embodiment includes a first external gear 801 fixedly disposed on a seat surface side, a synchronizing gear 802 engaged with the first external gear, a first link gear 803, a second link gear 804, and a first internal gear 805 fixedly disposed on a front vertical rod, the first link gear 803 and the synchronizing gear 805 are respectively connected to a hinge shaft 806 between the front vertical rod and the upper crossbar, the second link gear 804 is disposed between the first link gear 803 and the first internal gear 805, the second link gear 804 is respectively engaged with the first link gear 803 and the first internal gear 805, and the second link gear 804 is rotatably connected to the upper crossbar 6 through a gear shaft 807.
When the upper cross rod rotates, the speed increasing gear set formed by the first connecting rod gear, the second connecting rod gear and the first internal gear acts, the second connecting rod gear rotates to drive the first connecting rod gear to rotate, the first connecting rod gear rotates to drive the synchronous gear to rotate, the diameters of the first external gear and the synchronous gear are larger than the diameter of the first connecting rod gear, the synchronous gear and the first external gear are meshed to form the speed reducing gear set, the synchronous gear drives the first external gear to rotate, and the seat surface is driven to rotate through the first external gear.
In this embodiment, the first external gear 801 has a sector structure; first internal gear 805 is fan-shaped structure, first internal gear both ends respectively with before between the montant fixed connection to make things convenient for the setting of first external gear, first internal gear in the seat.
In this embodiment, the transmission mechanisms 8 are respectively disposed on two sides of the seat surface 2, and the two sets of transmission mechanisms provide a rotational driving acting force to the seat surface, so as to ensure the safety of the seat in the action process.
In this embodiment, the push rod may be an existing structural member such as an electric stay rod that can achieve a telescopic function.
The operation process of the seat in the embodiment is described with reference to the seat in the embodiment, taking the auxiliary lifting as an example:
1) a control switch of the push rod is pressed, the push rod extends, the upper cross rod is pushed to rotate and drive the parallel four-bar linkage to act, so that the front vertical rod vertically rises and drives the seat surface to rise; meanwhile, when the upper cross rod rotates, the seat surface is driven to rotate through the transmission mechanism, so that the linkage of the ascending action of the seat surface and the rotation of the seat surface is realized, and at the moment, the seat supports a user to sit up;
2) after the chair moves to a certain height, the push rod is controlled to stop, and a user finishes the action of sitting up;
3) and the control switch is pressed again, and the seat returns to the initial state.
As shown in fig. 1, in the present embodiment, rollers 9 are disposed on the base 1 to facilitate the movement of the chair. The front vertical rods 5 are respectively provided with an armrest 10, and the armrests 10 are provided with a backrest 11, so that the safety and the comfort of the seat are further improved while the auxiliary support is provided for the human body.
Example two
The difference between the seat in this embodiment and the first embodiment is that the adopted transmission mechanism structure is different, specifically as follows:
as shown in fig. 5, the transmission mechanism 8 in this embodiment includes a second external gear 811 fixedly disposed on one side of the seat surface and a second driving gear 812 fixedly disposed on the hinge shaft, and the second external gear 811 is engaged with the second driving gear 812.
When the push rod drives the upper cross rod to rotate, the articulated shaft fixedly connected with the upper cross rod is driven to rotate, so that the second driving gear on the articulated shaft synchronously rotates, and the second driving gear drives the second external gear to rotate, thereby driving the seat surface to rotate.
EXAMPLE III
The difference between the seat in this embodiment and the first embodiment is that the adopted transmission mechanism structure is different, specifically as follows:
as shown in fig. 6, the transmission mechanism 8 in the present embodiment includes a third external gear 821 fixedly provided on the seat surface side, a third synchronizing wheel 822 meshed with the third external gear, a third intermediate wheel 823, and a third transmission wheel 824 meshed with the third intermediate wheel; the third synchronous wheel 822 and the third intermediate wheel 823 are respectively and fixedly arranged on the hinge shaft 806, and the third driving wheel 824 is fixedly arranged on the upper cross bar 6 through a gear shaft 807.
When the push rod drives the upper cross rod to rotate, the third intermediate wheel rotates under the action of the third transmission wheel, the third intermediate wheel drives a third synchronous wheel which is also connected to the hinged shaft to rotate, and the third synchronous wheel drives a third outer gear to rotate, so that the seat surface is driven to rotate.
Example four
The difference between the seat in this embodiment and the first embodiment is that the adopted transmission mechanism structure is different, specifically as follows:
as shown in fig. 7, the transmission mechanism 8 in this embodiment includes a fourth outer gear 831 fixedly provided on the seat surface side, a fourth synchronizing wheel 832 engaged with the fourth outer gear, a fourth intermediate wheel 833, a fourth transmission wheel 834 engaged with the fourth intermediate wheel, and a fourth inner gear 835 engaged with the fourth transmission wheel; the fourth synchronizing wheel 832 and the fourth intermediate wheel 833 are respectively and fixedly arranged on the hinge shaft 806, the fourth driving wheel 834 is arranged on the upper cross bar 6 through a gear shaft 807 and is rotatably connected with the upper cross bar 6, and the fourth internal gear 835 is fixedly connected with the front vertical bar 5.
When the push rod drives the upper cross rod to rotate, the fourth inner gear drives the fourth transmission wheel to rotate, the fourth transmission wheel drives the fourth intermediate wheel to rotate, the fourth intermediate wheel drives the fourth synchronizing wheel which is also connected to the hinged shaft to rotate, and the fourth synchronizing wheel drives the fourth outer gear to rotate, so that the seat surface is driven to rotate.
EXAMPLE five
The difference between the seat in this embodiment and the first embodiment is that the adopted transmission mechanism structure is different, specifically as follows:
as shown in fig. 8, the transmission structure in this embodiment includes a fifth driven wheel 841, a fifth synchronizing wheel 842, a fifth intermediate wheel 843 and a fifth driving wheel 844 engaged with the fifth intermediate wheel, which are arranged on the side hinge shaft on the seat surface side, the fifth driven wheel 841 and the fifth synchronizing wheel 842 are connected and driven by a belt 845 or a chain, the fifth synchronizing wheel 842 and the fifth intermediate wheel 843 are respectively fixedly arranged on the hinge shaft 806, and the fifth driving wheel 841 is fixedly connected to the upper cross bar 6 by a gear shaft 804.
When the push rod drives the upper cross rod to rotate, the fifth intermediate wheel rotates under the action of the fifth driving wheel, the fifth intermediate wheel drives the fifth synchronizing wheel which is also connected to the hinged shaft to rotate, and the fifth synchronizing wheel drives the fifth driven wheel to rotate through a belt or a chain, so that the seat surface is driven to rotate.
The present invention is not limited to the above description and drawings, but should be understood as being illustrative and not restrictive, and the technical features can be replaced and modified without creative efforts by those skilled in the art according to the technical content disclosed, all falling within the scope of the present invention.
Claims (10)
1. The utility model provides a can assist human seat of standing up to sit, includes seat frame and seat, its characterized in that:
the seat frame comprises a base and telescopic supporting mechanisms arranged on two sides of the base, each telescopic supporting mechanism comprises a push rod, a rear vertical rod, a front vertical rod, an upper transverse rod and a lower transverse rod, one end of each rear vertical rod is fixedly arranged on the base, two ends of each upper transverse rod and two ends of each lower transverse rod are respectively hinged with the front vertical rod and the rear vertical rod to form a parallel four-bar mechanism, the push rods are arranged on the base, and the push rods drive the upper transverse rods and the lower transverse rods to swing up and down along hinge joints between the upper transverse rods and the rear vertical rods;
the two sides of the seat surface are respectively hinged with the front vertical rods positioned on the two sides of the seat surface, a transmission mechanism is arranged between the parallel four-bar linkage mechanism and the seat surface, and the transmission mechanism drives the seat surface to rotate along a hinged point between the seat surface and the front vertical rods when the upper cross rod swings.
2. The seat capable of assisting a person to sit up according to claim 1, wherein: the transmission mechanism comprises a first outer gear fixedly arranged on one side of the seat surface, a synchronizing gear meshed with the first outer gear, a first connecting rod gear, a second connecting rod gear and a first inner gear fixedly arranged on a front vertical rod, wherein the first connecting rod gear and the synchronizing gear are respectively connected to a hinge shaft between the front vertical rod and an upper transverse rod, the second connecting rod gear is arranged between the first connecting rod gear and the first inner gear, the second connecting rod gear is respectively meshed with the first connecting rod gear and the first inner gear, and the second connecting rod gear is connected with the upper transverse rod through a gear shaft in a rotating manner.
3. The seat capable of assisting a person to sit up according to claim 2, wherein: the two sides of the seat surface are respectively provided with a transmission mechanism.
4. The seat capable of assisting a person to sit up according to claim 2, wherein: the diameters of the first external gear and the synchronous gear are larger than the diameter of the first connecting rod gear.
5. The seat capable of assisting a person to sit up according to claim 2, wherein: the first outer gear is of a sector structure.
6. The seat capable of assisting a person to sit up according to claim 2, wherein: the first internal gear is of a fan-shaped structure, and two ends of the first internal gear are fixedly connected with the front vertical rod respectively.
7. A seat for assisting a person in sitting up according to any one of claims 1 to 6, wherein: the push rod is under initial condition, and the seat personally submits the level setting, when the push rod extends, the seat face risees and its front end rotates downwards.
8. The seat capable of assisting a person to sit up according to claim 1, wherein: one end of the push rod is hinged with the base, and the other end of the push rod is hinged with the upper cross rod.
9. The seat capable of assisting a person to sit up according to claim 1, wherein: the base is provided with rollers.
10. The seat capable of assisting a person to sit up according to claim 1, wherein: and the front vertical rod is provided with a handrail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022066647.8U CN212439105U (en) | 2020-09-18 | 2020-09-18 | Seat capable of assisting human body to sit up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022066647.8U CN212439105U (en) | 2020-09-18 | 2020-09-18 | Seat capable of assisting human body to sit up |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212439105U true CN212439105U (en) | 2021-02-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022066647.8U Active CN212439105U (en) | 2020-09-18 | 2020-09-18 | Seat capable of assisting human body to sit up |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212439105U (en) |
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2020
- 2020-09-18 CN CN202022066647.8U patent/CN212439105U/en active Active
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