CN107650747B - Hidden screw nut lift folding chair - Google Patents
Hidden screw nut lift folding chair Download PDFInfo
- Publication number
- CN107650747B CN107650747B CN201711207728.1A CN201711207728A CN107650747B CN 107650747 B CN107650747 B CN 107650747B CN 201711207728 A CN201711207728 A CN 201711207728A CN 107650747 B CN107650747 B CN 107650747B
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- China
- Prior art keywords
- screw nut
- folding chair
- motor
- screw
- electric telescopic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/30—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats
- B60N2/3072—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats on a lower level of a multi-level vehicle floor
- B60N2/3075—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats on a lower level of a multi-level vehicle floor stowed in recess
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/242—Bus seats
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/30—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats
- B60N2/3038—Cushion movements
- B60N2/304—Cushion movements by rotation only
- B60N2/3045—Cushion movements by rotation only about transversal axis
- B60N2/3047—Cushion movements by rotation only about transversal axis the cushion being hinged at the back-rest
Abstract
A hidden screw nut lifting folding chair comprises a backrest and a cushion, wherein a lifting device arranged below the folding chair is arranged on a bottom plate at the bottom of a bottom bin, the lifting device comprises a plurality of groups of screw nut mechanisms which are sequentially and vertically arranged, each group of screw nut mechanism comprises a screw, a nut and a motor, wherein the motor in the screw nut mechanism at the head position of the arrangement is fixed on the bottom plate, the nut in the screw nut mechanism at the tail position of the arrangement is fixed on the folding chair, the motors in the other screw nut mechanisms are fixed on the nuts which are adjacently arranged sequentially through connecting pieces, and after the motor drives the screw to rotate, the nuts are lifted or lowered together in the vertical direction, so that the vertical lifting of the folding chair is finally realized; the floor is provided with a notch along the lifting path of the folding chair, and a sealing device capable of sealing the notch is arranged in the bottom bin. The invention realizes the automatic lifting of the folding chair through a plurality of groups of screw rod and nut mechanisms, saves labor and improves the whole working efficiency.
Description
Technical Field
The invention relates to the technical field of bus facilities, in particular to a hidden lifting folding chair with a screw rod and a nut.
Background
At present, buses have become the indispensable vehicle in people's trip, and buses are seen from the perspective of design and technical characteristic, and are different with the motorcycle type (like distant bus, tourist bus, group's passenger train etc.) of other big or medium-sized passenger cars, be equipped with passenger seat and the passageway that supplies the passenger to stand and walk on the floor of bus bottom storehouse top, be equipped with the handle that assists the use when supplying the passenger to stand on the roof at bus box top, require the carriage area of standing big, passageway and discrepancy mouth width, two above doors in the carriage. Therefore, the situation that the taking comfort of the bus is relatively poor is caused, the reason is that the number of seats of the bus is limited, most of passengers can sit without seats when going out without being crowded relatively, and certain discomfort exists for passengers who are far away on the way, weak and the like.
Disclosure of Invention
The invention aims to provide a hidden lifting folding chair with a screw nut, which can be embedded into a bottom cabin of a bus when not in use and can also extend out of the bottom cabin of the bus when in need.
The technical scheme adopted by the invention for realizing the purpose is as follows: a hidden screw nut lifting folding chair is arranged in a bottom bin below the floor of a bus and comprises a backrest and a cushion hinged with the backrest, wherein the backrest is vertically arranged, the cushion is connected to one side of the backrest in a foldable manner through a self-locking folding piece, the self-locking folding piece can enable the cushion to be switched between a vertical state and a horizontal state, a lifting device arranged below the folding chair is arranged on a bottom plate at the bottom of the bottom bin and comprises a plurality of groups of screw nut mechanisms which are sequentially and vertically arranged, each group of screw nut mechanisms respectively comprises a screw, a nut sleeved on the screw and a motor for controlling the rotation of the screw, wherein the motor in the first screw nut mechanism is fixed on the bottom plate, the nut in the last screw nut mechanism is fixed on the folding chair, and the motor connecting pieces in the other screw nut mechanisms are fixed on the nuts which are adjacently arranged in sequence, after the motor drives the screw rod to rotate, the nuts ascend or descend together in the vertical direction, and finally the vertical ascending and descending of the folding chair are realized; the floor of the bus is provided with a notch for the folding chair to pass through along the lifting path of the folding chair, and a sealing device for sealing the notch after the folding chair completely extends out of the bottom bin is also arranged in the bottom bin.
Each group of screw and nut mechanisms also comprises a guide rod which is vertically arranged, nuts in the screw and nut mechanisms are sleeved on the guide rods in the same screw and nut mechanism in a sliding fit manner, wherein the guide rods in the screw and nut mechanism at the head of arrangement are vertically connected between a floor and a bottom plate, and the guide rods in the other screw and nut mechanisms are vertically fixed on a connecting piece; besides the screw nut mechanisms at the head of the arrangement, corrugated sleeves are arranged in the other screw nut mechanisms, the lower ends of the corrugated sleeves in the same screw nut mechanism are fixed on the connecting piece, and the upper ends of the corrugated sleeves are fixed on the lower surface of the nut, so that the screw and a motor driving the screw to rotate are both positioned in the corrugated sleeves.
Furthermore, nuts in the screw nut mechanisms arranged at the last positions are fixed at the lower end of the backrest, and a channel which does not interfere the movement of a screw and a guide rod in the screw nut mechanisms is arranged in the backrest; the guide rod in the screw nut mechanism below the horizontal cushion is of a hollow structure, the electric telescopic rod I is vertically arranged on the bottom plate, and after the electric telescopic rod I extends, the electric telescopic rod I can pass through the guide rod of the hollow structure and enables the upper end of the electric telescopic rod I to be supported on the lower surface of the cushion.
The lower end of a lead screw in the lead screw nut mechanism at the head of the arrangement is connected with a motor, the upper end of the lead screw is rotatably supported on the lower surface of the floor, the vertical heights of the lead screws in the lead screw nut mechanisms are the same, and the lead screw nut mechanisms in the lead screw nut mechanisms adjacent to the lead screw nut mechanisms at the head of the arrangement can be driven by nuts to completely extend out of the bottom bin.
According to the sealing device, the sealing device comprises a sealing plate, a gear rack mechanism and a chain wheel and chain mechanism, wherein the gear rack mechanism comprises a gear, a rack and a motor for driving the gear to rotate; sprocket chain mechanism includes drive sprocket, driven sprocket, chain and drive sprocket pivoted motor, driven sprocket and drive sprocket pivoted motor all set up on the connecting plate, the lower surface at the shrouding is fixed to the chain level, and the teeth of a cogwheel of drive sprocket and driven sprocket all sets up with the chain meshing, the setting of the vertical height of chain horizontal length and guide pillar, make the gear, synchronous pivoted drive sprocket and driven sprocket can be in corotation or reversal in-process, through the vertical lift of rack and the horizontal reciprocating motion of chain, drive the shrouding and remove to the bottom bin in or the involution is in the breach.
Preferably, electromagnets are arranged at two opposite ends of the sealing plate, a groove penetrating through one end of the sealing plate is formed in the sealing plate, and the groove can accommodate a screw-nut mechanism arranged adjacent to the screw-nut mechanism at the head of the arrangement; the edge of the gap is provided with an electromagnet which is arranged corresponding to the electromagnet on the sealing plate.
Further, be connected with the round pin axle on the shrouding between the cell wall that is located the recess tank bottom, it has the apron to sell epaxial articulated, be connected with on the shrouding and be used for driving apron pivoted actuating mechanism, actuating mechanism includes the motor, the crank, connecting rod and rocker, the motor is established at the lower surface of shrouding, and the motor is connected with articulate one end transmission, the crank, connecting rod and rocker are articulated in proper order, the tip and the apron fixed connection of rocker, and still be connected with positioning mechanism between apron and the shrouding, the motor can drive the connecting rod through the crank, rocker and apron linkage, make the apron rotate around its round pin axle of being connected with the shrouding, and inject the position of apron through positioning mechanism.
Furthermore, the positioning mechanism comprises a spring and a steel ball, blind holes extending along the axis direction of the pin shaft are formed in two oppositely arranged side surfaces, close to the groove wall, of the cover plate, the two blind holes are respectively located on two sides of the pin shaft, one end of the spring is fixed at the bottom of each blind hole, the other end of the spring is fixedly connected with the steel ball, and the natural length of the spring is set so that the steel ball can extend out of the blind holes; be equipped with two steel ball nest holes in the shrouding respectively on the relative cell wall that sets up in the recess tank bottom, wherein two steel ball nest hole levels set up, the vertical setting in two other steel ball nest holes, make four steel ball nest holes be "ten" style of calligraphy cross structure, each steel ball nest hole is located the movement track of the steel ball that actuating mechanism driven apron drove, when two steel balls are located the steel ball nest hole that wherein two levels set up, apron and shrouding are located the coplanar, when two steel balls are located the steel ball nest hole of wherein two vertical settings, the apron sets up with the shrouding is perpendicular.
In the invention, the upper surface of the sealing plate is provided with a warning lamp and a weight sensor, and a sound output module and a light-emitting element are arranged in the warning lamp; the folding chair also comprises a control device, the control device consists of an A/D converter, a memory, a processor connected with the drivers of the motors and a control switch for controlling the working state of the processor, the processor is respectively connected with the A/D converter, the control switch and the memory, the control device, the weight sensor and the warning lamp are electrically connected with a circuit board arranged in the sealing plate, and the circuit board is connected with a battery; the warning light is connected with the processor, and the weight sensor is connected with the A/D converter.
According to the invention, an electric telescopic rod II which is vertically arranged and driven by a motor is further arranged on the bottom plate, an electromagnetic block is arranged at the upper end of the electric telescopic rod II, a through hole for the electric telescopic rod II to pass through is formed in a path, corresponding to the expansion and contraction of the electric telescopic rod II, on the floor, an electric telescopic rod III which is vertically arranged is arranged on a top plate at the top of the bus box body, an electromagnetic block is arranged at the lower end of the electric telescopic rod III, the expansion and contraction paths of the electric telescopic rod II and the electric telescopic rod III coincide, and the two electromagnetic blocks can be attached and adsorbed to the maximum.
Has the advantages that: the automatic lifting device realizes the automatic lifting of the folding chair through the plurality of groups of screw and nut mechanisms, and when passengers need to lift the folding chair to a certain height without influencing the safety in the vehicle, the folding chair can be opened to reduce the standing of the passengers; when passengers stand more and the space is insufficient in the carriage, the folding chair can be folded in the bottom bin, so that the space in the carriage is saved; the parallel work is realized by adopting a plurality of groups of screw rod nut mechanisms, and the bearing capacity is high; the structure is simple; the manpower is saved, and the whole working efficiency is improved.
The sealing device is adopted to seal the gap on the floor, so that the situation that a passenger steps on the floor is avoided, the sealing plate is driven to move in a reciprocating mode along the vertical direction by the gear and rack mechanism, the bearing capacity of the gear and rack mechanism is large, the transmission precision is high, the infinite butt joint continuation can be realized, and the transmission speed is high; the chain wheel and chain mechanism is adopted to drive the sealing plate to reciprocate along the horizontal direction, the chain wheel and chain mechanism can work in the heavy load, high temperature adjustment and dust flying environment, and the transmission efficiency is high; utilize guide pillar and guide pin bushing to inject the removal of shrouding, the transmission is steady.
Drawings
FIG. 1 is a view showing a state of use of the folding chair of the present invention;
FIG. 2 is a schematic view of the lifting device of FIG. 1;
fig. 3 is a schematic view of the sealing apparatus of fig. 1;
FIG. 4 is a schematic view of the connection between the cover plate and the closing plate of FIG. 3;
FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;
FIG. 6 is a schematic view of the closure plate of FIG. 5;
FIG. 7 is a schematic view taken along direction B in FIG. 6;
FIG. 8 is a schematic view taken along direction C of FIG. 6;
FIGS. 9 and 10 are schematic views illustrating the movement of the cover plate of FIG. 4;
FIG. 11 is a top view of the closure plate of FIG. 1;
figure 12 is a schematic view of the opening device of figure 1 after opening;
figure 13 is a schematic view of the folding chair of the present invention fully stowed in the bottom compartment;
fig. 14 is a schematic diagram of the control device.
Reference numerals: 1. top plate, 2, bottom bin, 3, bottom plate, 4, floor, 40, notch, 5, backrest, 6, cushion, 7, screw nut mechanism, 70, screw, 71, nut, 72, guide rod, 8, connecting piece, 9, corrugated sleeve, 10, electric telescopic rod I, 11, closing plate, 110, groove, 111, steel ball socket hole, 12, gear, 13, rack, 14, connecting plate, 15, guide column, 16, guide sleeve, 17, driving sprocket, 18, driven sprocket, 19, chain, 20, electromagnet, 21, pin shaft, 22, cover plate, 220, blind hole, 23, crank, 24, connecting rod, 25, rocker, 26, positioning mechanism, 260, spring, 261, steel ball, 27, warning light, 28, weight sensor, 29, electric telescopic rod II, 30, electric telescopic rod III, 31, electromagnetic block, 32, base, 33, motor, 34, pin shaft hole.
Detailed Description
In order to facilitate the understanding of the technical means, the creative features and the achieved objects of the invention, the invention is further explained in the following with the specific installation schematic diagram, but the scope of the invention which is claimed is not limited to the scope described in the specific embodiment.
A hidden screw nut lifting folding chair can be arranged in a bottom bin 2 below a floor 4 of a bus when not in use. As shown in fig. 1 and 12, the folding chair comprises a backrest 5 and a seat cushion 6 hinged with the backrest 5, wherein the backrest 5 is vertically arranged, the seat cushion 6 is foldably connected to one side of the backrest 2 through a self-locking folding piece, and the self-locking folding piece can enable the seat cushion 6 to be switched between a vertical state and a horizontal state. The invention relates to a self-locking folding piece, which belongs to the prior known technology and is widely applied to the fields of folding seats, folding tables and the like, wherein the self-locking folding piece comprises two folding rods which are hinged with each other; when the convex column slides to the first end of the C-shaped sliding groove, the folding chair is in an unfolded state as shown in figure 1; when the foldable chair slides to the second end, the foldable chair is in a storage state as shown in fig. 12, and the self-locking foldable piece has the characteristics of simple structure, convenient operation and safe use.
In the invention, a lifting device arranged below a folding chair is arranged on a bottom plate 3 at the bottom of a bottom bin 2, the lifting device comprises a plurality of groups of lead screw and nut mechanisms 7 which are sequentially and vertically arranged, and the groups of the lead screw and nut mechanisms can be comprehensively considered according to the height of the bottom bin and the space in a carriage.
According to the invention, an electric telescopic rod II 29 which is vertically arranged and driven by a motor is also arranged on a bottom plate 3, an electromagnetic block is arranged at the upper end of the electric telescopic rod II 29, a through hole for the electric telescopic rod II 29 to pass through is arranged on a floor 4 corresponding to the telescopic path of the electric telescopic rod II 29, an electric telescopic rod III 30 which is vertically arranged is arranged on a top plate 1 at the top of a bus box body, an electromagnetic block is arranged at the lower end of the electric telescopic rod III 30, the telescopic paths of the electric telescopic rod II 29 and the electric telescopic rod III 30 are coincident, the two electromagnetic blocks can be attached and adsorbed to the maximum extent that the electric telescopic rod II 29 and the electric telescopic rod III 30 extend out, and the electric telescopic rod II 29; preferably, the upper surface of the floor 4 is further provided with a counter bore capable of placing an electromagnetic block, so that the upper surface of the electromagnetic block at the upper end of the contracted electric telescopic rod II 29 is flush with the upper surface of the floor 4.
As shown in fig. 1 and 2, each set of screw-nut mechanism 7 includes a screw 70, a nut 71 sleeved on the screw 70, and a motor for controlling the rotation of the screw 70; the motor in the lead screw and nut mechanism at the head of arrangement, namely the rightmost lead screw and nut mechanism in fig. 2, is fixed on the bottom plate 3, the nut 71 in the lead screw and nut mechanism at the last position of arrangement, namely the leftmost lead screw and nut mechanism in fig. 2, is fixed on the nut 71 in the lead screw and nut mechanism which is adjacently arranged sequentially through the connecting piece 8, namely the motor in the lead screw and nut mechanism at the second position of arrangement is fixed on the nut in the lead screw and nut mechanism at the head of arrangement through the connecting piece, the motor in the lead screw and nut mechanism at the third position of arrangement is fixed on the nut in the lead screw and nut mechanism at the second position of arrangement through the connecting piece, and the motor in the lead screw and nut mechanism at the last position of arrangement is fixed on the nut in the lead screw and nut mechanism. According to the folding chair, after the corresponding screw rods are driven to rotate by the motors in each group of screw rod nut mechanisms, the corresponding nuts can ascend or descend together in the vertical direction, and finally the vertical ascending and descending of the folding chair are realized; the floor 4 of the bus is provided with a gap 40 for the folding chair to pass through along the lifting path of the folding chair, and a sealing device for sealing the gap 40 after the folding chair completely extends out of the bottom bin is also arranged in the bottom bin 2. Preferably, an electromagnetic brake is arranged on a motor shaft of a motor in each group of the lead screw nut mechanisms 7, so that the motor can be rapidly braked after being stopped, and the self-locking of the motor is completed; after being electrified, the motor shaft is loosened, and the rotation of the motor shaft is not influenced.
Preferably, as shown in fig. 2 and 13, each set of screw-nut mechanisms 7 further includes a vertically arranged guide rod 72, a nut 71 in the screw-nut mechanism is slidably fitted and sleeved on the guide rod 72 in the same screw-nut mechanism, wherein the guide rod in the screw-nut mechanism at the head of the arrangement is vertically connected between the floor 4 and the bottom plate 3, and the guide rods in the other screw-nut mechanisms are vertically fixed on the connecting pieces of the respective screw-nut mechanisms; besides the screw nut mechanisms at the head of the arrangement, corrugated sleeves 9 are arranged in the other screw nut mechanisms, in the same screw nut mechanism, the lower ends of the corrugated sleeves 9 are fixed on the connecting piece 8, the upper ends of the corrugated sleeves 9 are fixed on the lower surface of the nut 71, and the screw 70 and a motor driving the screw 70 to rotate are both positioned in the corrugated sleeves 9. The arrangement of the vertical height of the corrugated sleeve enables the nut to move to the maximum stroke and the minimum stroke of the screw rod.
As shown in fig. 2 and 13, a nut 71 of the screw-nut mechanism at the end of the arrangement is fixed at the lower end of the backrest 5, and a channel which does not interfere with the movement of the screw and the guide rod of the screw-nut mechanism is arranged in the backrest 5; as shown in fig. 2, the interior of the guide rod of the screw-nut mechanism located below the horizontal seat cushion 6 is hollow, the vertically disposed electric telescopic rod i 10 is provided on the bottom plate 3, and after the electric telescopic rod i 10 is extended, the upper end of the electric telescopic rod i 10 can pass through the hollow guide rod and be supported on the lower surface of the seat cushion 6.
The lower end of a lead screw in the lead screw nut mechanism 7 at the head of arrangement is connected with a motor fixed on the bottom plate 3, the upper end of the lead screw is rotatably supported on the lower surface of the floor 4, the vertical heights of lead screws 70 in the lead screw nut mechanisms 7 are the same, and the lead screw nut mechanisms adjacent to the lead screw nut mechanisms at the head of arrangement (namely, the lead screw nut mechanisms at the second position of arrangement) can be driven by nuts in the lead screw nut mechanisms (namely, the lead screw nut mechanisms at the third position of arrangement) to completely extend out of the bottom bin.
As shown in fig. 3, the sealing device includes a sealing plate 11, a rack-and-pinion mechanism and a sprocket chain mechanism, the rack-and-pinion mechanism includes a gear 12, a rack 13 and a motor for driving the gear 12 to rotate, the motor is fixed on a base 32 disposed on the bottom plate 3, the gear 12 is meshed with the vertically disposed rack 13, the upper end of the rack 13 is vertically connected with a connecting plate 14, a vertically disposed guide pillar 15 is disposed on the base 32, and one end of the connecting plate 14 is provided with a guide sleeve 16 which is sleeved on the guide pillar 15 in a sliding fit manner; sprocket chain mechanism includes drive sprocket 17, driven sprocket 18, chain 19 and drive sprocket 17 pivoted motor, driven sprocket 18 and drive sprocket 17 pivoted motor all set up on connecting plate 14, the lower surface at shrouding 11 is fixed to chain 19 level, and the teeth of a cogwheel of drive sprocket 17 and driven sprocket 18 all meshes the setting with chain 19, 19 horizontal length of chain and the setting of the 15 vertical heights of guide pillar, make gear 12, synchronous pivoted drive sprocket 17 and driven sprocket 18 can be in corotation or reversal in-process, through the vertical lift of rack 13 and the horizontal reciprocating motion of chain 19, drive shrouding 11 and move to in the bottom bin 2 or the involution is in breach 40.
As shown in fig. 4, 9 and 10, a pin shaft 21 is connected between groove walls of the sealing plate 11 at the bottom of the groove, a cover plate 22 is hinged on the pin shaft 21, a driving mechanism for driving the cover plate 22 to rotate is connected on the sealing plate 11, the driving mechanism includes a motor, a crank 23, a connecting rod 24 and a rocker 25, the motor is arranged on the sealing plate 11, preferably, the motor is arranged on the side surface or the lower surface of the sealing plate 11, the motor is in transmission connection with one end of the crank 23, the connecting rod 24 and the rocker 25 are sequentially hinged, and the end of the rocker 25 is fixedly connected with the cover plate 22; as shown in fig. 3, a positioning mechanism 26 is further connected between the cover plate 22 and the closing plate 11, the motor can drive the connecting rod 24, the rocker 25 and the cover plate 22 to be linked through the crank 23, so that the cover plate 22 rotates around the pin 21 connected with the closing plate 11, the position of the cover plate 22 is limited through the positioning mechanism 26, the cover plate 22 seals the groove 110 or is away from the groove 110, and the cover plate 22 can seal the groove 110 after the screw-nut mechanism completely descends to the bottom bin 2.
As shown in fig. 4 and 5, the positioning mechanism 26 includes two springs 260 and two steel balls 261, blind holes 220 extending along the axial direction of the pin 21 are respectively disposed on two opposite side surfaces of the cover plate 22 close to the groove wall of the groove 110, the two blind holes 220 are respectively located on two sides of the pin 21, one end of the spring 260 is fixed at the bottom of the blind hole 220, the other end of the spring 260 is fixedly connected with the steel ball 261, and the steel ball 261 can extend out of the blind hole 220 due to the arrangement of the natural length of the spring 260; as shown in fig. 6, 7 and 8, two steel ball socket holes 111 are respectively formed in the groove walls of the sealing plate 22, which are located at the bottom of the groove 110 and are oppositely arranged, wherein the two steel ball socket holes are horizontally arranged, the other two steel ball socket holes are vertically arranged, so that the four steel ball socket holes 111 are in a cross structure, each steel ball socket hole 111 is located on a movement track of a steel ball 261 driven by the cover plate 22 driven by the driving mechanism, when the two steel balls 261 are located in the two horizontally arranged steel ball socket holes, the cover plate 22 and the sealing plate 11 are located on the same plane (as shown in fig. 10), and when the two steel balls 261 are located in the two vertically arranged steel ball socket holes, the cover plate 22 and the sealing plate 11 are vertically arranged (as shown in fig. 3).
As shown in fig. 1 and 3, a warning light 27 and a weight sensor 28 are disposed on the upper surface of the sealing plate 11, and a sound output module and a light emitting element are disposed in the warning light; the folding chair also comprises a control device, the control device consists of an A/D converter, a memory, a processor connected with the drivers of the motors and a control switch for controlling the working state of the processor, the processor is respectively connected with the A/D converter, the control switch and the memory, as shown in figure 14, the control device, the weight sensor and the warning lamp are electrically connected with a circuit board arranged in the sealing plate, and the circuit board is connected with a battery; the warning light is connected with the processor, and the weight sensor is connected with the A/D converter. The external button of treater, when needing to pop out the folding chair, press the button, when weight sensor detects there is weight, send sound and light through sound output module and light emitting component, when weight sensor detects not have weight, each orderly work of motor of treater control, simultaneously, send sound and light through sound output module and light emitting component. The control system of this part belongs to the existing known alarm system, and is not described in detail herein. Electromagnets are arranged at two opposite ends of the sealing plate 11, a groove 110 penetrating through one end of the sealing plate 11 is arranged on the sealing plate 11, and the groove 110 can accommodate a screw-nut mechanism arranged adjacent to the screw-nut mechanism at the head of the arrangement; as shown in fig. 12, the edge of the notch 40 is provided with an electromagnet corresponding to the electromagnet on the sealing plate 11.
(1) Assuming the state of fig. 13 as the original state of the invention, now the folding chair in the bottom compartment 2 is required to be extended: first, the closing plate 11 needs to be moved until the notch 40 in the floor 4 is completely opened, and the following operations are performed: when the weight sensor 28 on the sealing plate 11 in fig. 13 does not sense the existence of weight, the motor for controlling the rotation of the gear 12 is started, simultaneously, the coils of the electromagnets at the edges of the notches 40 and the two ends of the sealing plate 11 are powered off, and when the rack 13 moves downwards until the upper surface of the sealing plate 11 is lower than the lower surface of the floor 4, the motor for controlling the gear 12 stops working; starting a motor for controlling the rotation of the driving sprocket 17, enabling the driving sprocket 17 and the driven sprocket 18 to drive the chain 19 to horizontally move towards the direction far away from the gap 40, and when the sealing plate 11 moves along with the chain 19 to the extent that the action of extending the folding chair out of the bottom bin 2 is not influenced, enabling the motor of the driving sprocket 17 to stop working; a motor in a driving mechanism for controlling the rotation of the cover plate 22 is opened, so that the motor drives the cover plate 22 to rotate downwards through a crank 23 to open the groove 110, and the positioning mechanism limits the cover plate 22 and the closing plate 11 to be in a vertical state at the moment; a view of the location of the sealing device is shown in fig. 12;
secondly, sequentially or simultaneously turning on the motors in the screw and nut mechanisms 7 to enable the rotating screw to drive the nuts which are respectively matched and connected to move upwards, and stopping the motors in the screw and nut mechanisms 7 when the nuts move upwards to a proper position above the floor 4 of the folding chair;
then, the cushion 6 is opened through the self-locking folding piece, so that the cushion 6 is perpendicular to the backrest 5 which is vertically arranged; when the upper end of the electric telescopic rod I is extended to be supported on the lower surface of the seat cushion 6, the electric telescopic rod I stops working, and the state of the folding chair and the screw and nut mechanism is shown in figure 2;
then, the closing plate 11 needs to be moved until it completely seals the notch 40 on the floor 4, and the following actions are performed: when a motor for controlling the rotation of the driving sprocket 17 is started, the edges of the notches 40 and coils of electromagnets at two ends of the sealing plate 11 are simultaneously electrified, the driving sprocket 17 and the driven sprocket 18 drive the chain 19 to horizontally move towards the direction close to the notches 40, and when the outer edge of the sealing plate 11 corresponds to the edges of the notches 40, the motor for controlling the rotation of the driving sprocket 17 stops working; starting a motor for controlling the rotation of the gear 12, wherein the gear 12 continues to drive the rack 13 to vertically rise, and when the upper surface of the sealing plate 11 is flush with the upper surface of the floor 4, the motor for controlling the gear 11 stops working; the state of the sealing device is shown in fig. 3;
and finally, extending the electric telescopic rod II 29 and the electric telescopic rod III 30 driven by the motor to the two electromagnetic blocks for attaching and adsorbing, wherein the using state of the folding chair is shown in figure 1.
(2) When it is necessary to change from the state of fig. 1 to the original state of fig. 13, first, the closing plate 11 needs to be moved until the notch 40 on the floor 4 is completely opened, and the following operations are performed: when the weight sensor 28 on the sealing plate 11 in fig. 1 does not sense the existence of weight, the motor for controlling the rotation of the gear 12 is started, simultaneously, the coils of the electromagnets at the edges of the notches 40 and the two ends of the sealing plate 11 are powered off, and when the rack 13 moves downwards until the upper surface of the sealing plate 11 is lower than the lower surface of the floor 4, the motor for controlling the gear 12 stops working; starting a motor for controlling the rotation of the driving sprocket 17, enabling the driving sprocket 17 and the driven sprocket 18 to drive the chain 19 to horizontally move in the direction away from the gap 40, and when the sealing plate 11 moves along with the chain 19 to a position where the action of containing the folding chair into the bottom bin 2 is not influenced, enabling the motor of the driving sprocket 17 to stop working; and the cushion 6 is folded by the self-locking folding piece, so that the cushion 6 is attached to the backrest 5 which is vertically arranged, and the state is shown in figure 12;
secondly, sequentially or simultaneously opening the motors in the screw and nut mechanisms 7 to enable the rotating screw to drive the nuts which are respectively matched and connected to move downwards, and stopping the motors in the screw and nut mechanisms 7 when the nuts move downwards to the position where the folding chair is completely accommodated into the bottom bin without influencing the action of the sealing plate 11;
then, the sealing plate 11 needs to be moved to completely seal the notch 40 on the floor 4, and the following operations are performed: when a motor for controlling the rotation of the driving sprocket 17 is started, the edges of the notches 40 and coils of electromagnets at two ends of the sealing plate 11 are simultaneously electrified, the driving sprocket 17 and the driven sprocket 18 drive the chain 19 to horizontally move towards the direction close to the notches 40, and when the outer edge of the sealing plate 11 corresponds to the edges of the notches 40, the motor for controlling the rotation of the driving sprocket 17 stops working; starting a motor for controlling the rotation of the gear 12, wherein the gear 12 continues to drive the rack 13 to vertically rise, and when the upper surface of the sealing plate 11 is flush with the upper surface of the floor 4, the motor for controlling the gear 11 stops working; the state of the sealing device is shown in fig. 3;
then, the motor in the driving mechanism for controlling the rotation of the cover plate 22 is turned on, so that the motor drives the cover plate 22 to rotate to seal the groove 110 through the crank 23, and the positioning mechanism limits the cover plate 22 and the closing plate 11 to be in a horizontal state (as shown in fig. 10); a view of the location of the sealing device is shown in fig. 13;
and finally, the electric telescopic rod II 29 and the electric telescopic rod III 30 driven by the motor are contracted to the shortest length simultaneously.
Other details not described in the present invention are prior art.
The above examples are intended to illustrate the technical aspects of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, but not to limit the scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a hidden screw nut lift folding chair, this folding chair sets up in the bottom compartment of the floor below of bus, and this folding chair include the back and with back articulated cushion, the vertical setting of back, the cushion passes through auto-lock folded piece foldable connection in one side of back, the auto-lock folded piece can make the cushion switch its characterized in that between vertical and horizontality: a lifting device arranged below the folding chair is arranged on a bottom plate at the bottom of the bottom bin, the lifting device comprises a plurality of groups of screw nut mechanisms which are sequentially and vertically arranged, each group of screw nut mechanisms comprises a screw, a nut sleeved on the screw and a motor for controlling the rotation of the screw, wherein the motor in the screw nut mechanism at the head of the arrangement is fixed on the bottom plate, the nut in the screw nut mechanism at the tail of the arrangement is fixed on the folding chair, and the motors in the other screw nut mechanisms are fixed on the nuts which are adjacently arranged sequentially through a connecting piece, so that the nuts ascend or descend together in the vertical direction after the motor drives the screw to rotate, and the vertical lifting of the folding chair is finally realized; a gap for the folding chair to pass through is formed in the floor of the bus along the lifting path of the folding chair, and a sealing device for sealing the gap after the folding chair completely extends out of the bottom bin is further arranged in the bottom bin; the sealing device comprises a sealing plate, a gear rack mechanism and a chain wheel and chain mechanism, wherein the gear rack mechanism comprises a gear, a rack and a motor for driving the gear to rotate, the motor is fixed on a base arranged on a bottom plate, the gear is meshed with the vertically arranged rack, the upper end of the rack is vertically connected with a connecting plate, a vertically arranged guide pillar is arranged on the base, and one end of the connecting plate is provided with a guide sleeve which is sleeved on the guide pillar in a sliding fit manner; the chain wheel and chain mechanism comprises a driving chain wheel, a driven chain wheel, a chain and a motor for driving the driving chain wheel to rotate, the driven chain wheel and the motor for driving the driving chain wheel to rotate are arranged on the connecting plate, the chain is horizontally fixed on the lower surface of the sealing plate, the teeth of the driving chain wheel and the driven chain wheel are meshed with the chain, the horizontal length of the chain and the vertical height of the guide pillar are arranged, gears and the driving chain wheel and the driven chain wheel which rotate synchronously can move in the forward rotation or reverse rotation process through vertical lifting of the racks and horizontal reciprocating movement of the chain, the sealing plate is driven to move into the bottom bin or sealed in the notch, electromagnets are arranged at two opposite ends of the sealing plate, a groove penetrating through one end of the sealing plate is arranged on the sealing plate, and the groove can accommodate a lead screw nut mechanism; the edge of the notch is provided with an electromagnet which is arranged corresponding to the electromagnet on the sealing plate, a pin shaft is connected between groove walls positioned at the bottom of the groove on the sealing plate, a cover plate is hinged on the pin shaft, a driving mechanism used for driving the cover plate to rotate is connected on the sealing plate, the driving mechanism comprises a motor, a crank, a connecting rod and a rocker, the motor is arranged on the lower surface of the sealing plate, the motor is in transmission connection with one end of the crank, the connecting rod and the rocker are sequentially hinged, the end part of the rocker is fixedly connected with the cover plate, a positioning mechanism is also connected between the cover plate and the sealing plate, the motor can drive the connecting rod, the rocker and the cover plate to be linked through the crank, so that the cover plate rotates around; the positioning mechanism comprises a spring and a steel ball, blind holes extending along the axis direction of the pin shaft are formed in two oppositely arranged side surfaces, close to the groove wall, of the cover plate, the two blind holes are respectively positioned on two sides of the pin shaft, one end of the spring is fixed at the bottom of each blind hole, the other end of the spring is fixedly connected with the steel ball, and the natural length of the spring is set so that the steel ball can extend out of the blind holes; be equipped with two steel ball nest holes in the shrouding respectively on the relative cell wall that sets up in the recess tank bottom, wherein two steel ball nest hole levels set up, the vertical setting in two other steel ball nest holes, make four steel ball nest holes be "ten" style of calligraphy cross structure, each steel ball nest hole is located the movement track of the steel ball that actuating mechanism driven apron drove, when two steel balls are located the steel ball nest hole that wherein two levels set up, apron and shrouding are located the coplanar, when two steel balls are located the steel ball nest hole of wherein two vertical settings, the apron sets up with the shrouding is perpendicular.
2. The hidden lifting folding chair with screw nuts as claimed in claim 1, wherein: each group of lead screw nut mechanisms also comprises a guide rod which is vertically arranged, and nuts in the lead screw nut mechanisms are sleeved on the guide rods in the same lead screw nut mechanism in a sliding fit manner, wherein the guide rods in the lead screw nut mechanisms at the first arrangement position are vertically connected between a floor and a bottom plate, and the guide rods in the other lead screw nut mechanisms are vertically fixed on a connecting piece; besides the screw nut mechanisms at the head of the arrangement, corrugated sleeves are arranged in the other screw nut mechanisms, the lower ends of the corrugated sleeves in the same screw nut mechanism are fixed on the connecting piece, and the upper ends of the corrugated sleeves are fixed on the lower surface of the nut, so that the screw and a motor driving the screw to rotate are both positioned in the corrugated sleeves.
3. The hidden lifting folding chair with lead screw nut as claimed in claim 2, wherein: the nut in the screw and nut mechanism at the end of the arrangement is fixed at the lower end of the backrest, and a channel which does not interfere the movement of the screw and the guide rod in the screw and nut mechanism is arranged in the backrest; the guide rod in the screw nut mechanism below the horizontal cushion is of a hollow structure, the electric telescopic rod I is vertically arranged on the bottom plate, and after the electric telescopic rod I extends, the electric telescopic rod I can pass through the guide rod of the hollow structure and enables the upper end of the electric telescopic rod I to be supported on the lower surface of the cushion.
4. The hidden lifting folding chair with screw nuts as claimed in claim 1, wherein: the lower end of a lead screw in the lead screw nut mechanism at the head of the arrangement is connected with a motor, the upper end of the lead screw is rotatably supported on the lower surface of the floor, the vertical heights of the lead screws in the lead screw nut mechanisms are the same, and the lead screw nut mechanisms in the lead screw nut mechanisms adjacent to the lead screw nut mechanism at the head of the arrangement can be driven by nuts to completely extend out of the bottom bin.
5. The hidden lifting folding chair with screw nuts as claimed in claim 1, wherein: the upper surface of the sealing plate is provided with a warning lamp and a weight sensor, and a sound output module and a light-emitting element are arranged in the warning lamp; the folding chair also comprises a control device, the control device consists of an A/D converter, a memory, a processor connected with the drivers of the motors and a control switch for controlling the working state of the processor, the processor is respectively connected with the A/D converter, the control switch and the memory, the control device, the weight sensor and the warning lamp are electrically connected with a circuit board arranged in the sealing plate, and the circuit board is connected with a battery; the warning light is connected with the processor, and the weight sensor is connected with the A/D converter.
6. The hidden lifting folding chair with screw nuts as claimed in claim 1, wherein: still be equipped with vertical setting on the bottom plate and by electric telescopic handle II that the motor drove, the upper end of electric telescopic handle II is equipped with the electromagnetic block, be equipped with the through-hole that supplies it to pass through on the route that corresponds this electric telescopic handle II on the floor to stretch out and draw back, be equipped with the electric telescopic handle III of vertical setting on the roof at bus box top, the lower extreme of electric telescopic handle III is equipped with the electromagnetic block, electric telescopic handle II coincides mutually with electric telescopic handle III's flexible route, the furthest that electric telescopic handle II and electric telescopic handle III the two stretch out can make two electromagnetic block laminating adsorb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711207728.1A CN107650747B (en) | 2017-11-27 | 2017-11-27 | Hidden screw nut lift folding chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711207728.1A CN107650747B (en) | 2017-11-27 | 2017-11-27 | Hidden screw nut lift folding chair |
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| Publication Number | Publication Date |
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| CN107650747A CN107650747A (en) | 2018-02-02 |
| CN107650747B true CN107650747B (en) | 2019-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711207728.1A Expired - Fee Related CN107650747B (en) | 2017-11-27 | 2017-11-27 | Hidden screw nut lift folding chair |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109572736A (en) * | 2018-11-22 | 2019-04-05 | 成都市天龙交通设备有限公司 | Concealed seat |
| CN111197418B (en) * | 2019-12-03 | 2021-05-07 | 镇江畅行交通科技有限公司 | Customized bus application system based on bus application scene |
| CN111915775A (en) * | 2020-08-12 | 2020-11-10 | 刘世佳 | Hospital file utilization registration system and method based on data platform management |
| CN112498194B (en) * | 2020-12-30 | 2022-04-12 | 石家庄酷腾贸易有限公司 | Device for folding and unfolding bus chair |
| CN113135130A (en) * | 2021-04-30 | 2021-07-20 | 安徽汉唐休闲用品有限公司 | Hidden screw nut lifting high-bearing folding chair |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2875865Y (en) * | 2005-10-11 | 2007-03-07 | 程勇 | Automatic expansion hard roof of automobile |
| WO2013085474A2 (en) * | 2011-11-03 | 2013-06-13 | Erk Sitki Alp | Modular airplane seat unit |
| CN203211127U (en) * | 2013-02-22 | 2013-09-25 | 浙江吉利汽车研究院有限公司杭州分公司 | Vehicle seat structure |
| CN104309502A (en) * | 2014-10-24 | 2015-01-28 | 常州侨光电工器材有限公司 | Embedded folding seat in bus |
| CN104442468B (en) * | 2014-11-14 | 2017-02-15 | 青岛文创科技有限公司 | Bus enabling less people to stand |
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2017
- 2017-11-27 CN CN201711207728.1A patent/CN107650747B/en not_active Expired - Fee Related
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| CN107650747A (en) | 2018-02-02 |
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