CN102283526B - Quakeproof bed and power mechanism driving bed board of quakeproof bed to roll over and translate - Google Patents
Quakeproof bed and power mechanism driving bed board of quakeproof bed to roll over and translate Download PDFInfo
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- CN102283526B CN102283526B CN 201110234578 CN201110234578A CN102283526B CN 102283526 B CN102283526 B CN 102283526B CN 201110234578 CN201110234578 CN 201110234578 CN 201110234578 A CN201110234578 A CN 201110234578A CN 102283526 B CN102283526 B CN 102283526B
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Abstract
The invention provides a power mechanism which can lead two bed boards to roll over and translate towards to two sides of a bed base while driving the two bed plates to rotate. The power mechanism comprises a left bed board shaft and a right bed board shaft which are respectively fixedly connected with a left bed board and a right bed board, the left bed board shaft and the right bed board shaft are respectively arranged in a left sliding slot and a right sliding slot which are arranged on the bed base, the end parts of the left bed board shaft and the right bed board shaft are provided with a left driving gear and a right driving gear, a lower right worm and a lower left worm parallel to a left sliding chute are respectively meshed with the upper part and the lower part of a left driving worm wheel; an upper right worm and an upper left worm parallel to a right slicing chute are respectively meshed with the upper part and the lower part of a right driving worm gear; the upper left worm and the upper right worm are fixed on the bed base; the lower left worm is connected with a left sliding sleeve; the left sliding sleeve and an output shaft of a left driving device are connected by virtue of a left sliding pair which axially slides; the lower right worm is connected with a right sliding sleeve; and the right sliding sleeve and the output shaft of a right sliding device are connected by virtue of a right sliding pair which axially slides.
Description
Technical field
The present invention relates to the actuating unit of a kind of Antiseismic bed and the upset of drive bed board wherein and translation.
Background technology
Chinese patent application CN101874689A discloses a kind of Antiseismic bed, comprise bedstead, be provided with two along bedstead long axis and the bed board axle that can rotate at bedstead, on every bed board axle, be fixed with respectively a bed board, be provided with between described bedstead and the bed board and can make two bed boards towards the rightabout rotation and make the human body that is positioned on the bed board fall into the actuating unit of bedstead, and described bed board can block above human body under actuating unit drives after in human body falls into bedstead, described actuating unit is connected with control circuit, is connected with pressure sensor and the seismic sensor that is arranged on the bedstead at control circuit.When earthquake occurs when, pressure sensor is with after seismic sensor detects relevant signal, by control circuit so that actuating unit action, drive two bed boards and rotate and make the human body that is positioned on the bed board fall into bedstead towards rightabout, and so that two bed boards form firm triangle under actuating unit drives block above human body.
But the problem of this Antiseismic bed is, actuating unit can only drive two bed boards and rotate with the bed board axle, the bed board axle can only rotate with respect to bedstead, this can produce two problems: one, because the wheelbase of two bed board axles is little, human body falls the meeting pinch from being fixed between two bed boards on two bed board axles; Two, two bed boards block the top in human body after the bed board axle rotates, the space that holds human body in the bedstead is less.
Also there is the problem how two bed boards rotate synchronously in it under the drive of actuating unit in addition.Because; if both are asynchronous; two bed boards are when blocking above human body; the lateral edge portion of two bed boards just may not contact; thereby can not form firm triangle; when having weight to fall to two bed boards, two bed boards might be shifted, and can not protect the human body that is positioned at its underpart.
Summary of the invention
The purpose of this invention is to provide a kind of when can drive two bed boards and rotate so that bed board is to the actuating unit of two bed boards upsets and the translation of the both sides translation of bedstead.
Drive bed board upset in this Antiseismic bed and the actuating unit of translation, comprise the left and right sides bed board axle that is fixedly linked respectively with left and right sides bed board, left and right sides bed board axle is slidingly arranged in respectively in the left and right sides chute on the bedstead, the end of left and right sides bed board axle arranges left and right sides driven wheel, and up and down two piece left worm screws parallel with left chute mesh with the top and the bottom of left driving worm gear respectively; Up and down two piece right worm screws parallel with right rail mesh with the top and the bottom of right driving worm gear respectively; Upper left worm screw and upper right worm screw are fixed on the bedstead; The bottom left worm screw links to each other with left sliding sleeve; Left sliding sleeve links to each other by the left sliding pair that axially slides mutually with the output shaft of left drive unit; The bottom right worm screw links to each other with right sliding sleeve; Right sliding sleeve links to each other by the right sliding pair that axially slides mutually with the output shaft of right drive unit.
Beneficial effect of the present invention: when left drive unit action, left drive unit output shaft rotation drives left sliding sleeve and rotates, and bottom left is namely rotated by worm screw.And upper left worm screw to be fixed on the bedstead be motionless, roll when the left driven wheel that therefore all meshes with bottom left worm screw and upper left worm screw can only rotate and along upper left worm screw.Left driven wheel rotates, and then the left bed board axle rotates, and drives left bed board and rotates; Left driven wheel rolls along upper left worm screw, has just realized the translation to the bedstead left side of left bed board axle.That is to say, rotate on the left bed board limit, and the limit is mobile to the left.Until the left bed board axle contacts with the left end of left chute, the left bed board axle namely stops to the translation in bedstead left side.In like manner, when right drive unit action, right drive unit output shaft rotation drives right sliding sleeve and rotates, and bottom right is namely rotated by worm screw.And upper right worm screw to be fixed on the bedstead be motionless, roll when the right driven wheel that therefore all meshes with bottom right worm screw and upper right worm screw can only rotate and along upper right worm screw.Right driven wheel rotates, and then the right bedboard axle rotates, and drives right bedboard and rotates; Right driven wheel rolls along upper right worm screw, has just realized the translation to the bedstead right side of right bedboard axle.That is to say, rotate on the right bedboard limit, and the limit is mobile to the right.Until the right bedboard axle contacts with the right-hand end of right rail, the right bedboard axle namely stops to the translation on bedstead right side.At this moment left bed board and right bedboard form triangle, to the human body formation protection of bedstead.Because to the left translation of left bed board, right bedboard is translation to the right, and the distance between two bed boards is larger, and human body falls Shi Buhui from two bed boards and pushed by two bed boards; Space in the bedstead of the bottom between left bed board and the right bedboard also increases.
For can be so that two bed boards overturn synchronously, above-mentioned actuating unit also comprises about two two synchronous fuel tanks or cylinder; The piston rod of left synchronous fuel tank or cylinder links to each other with left sliding sleeve or bottom left worm screw, and the piston rod of right synchronous fuel tank or cylinder links to each other with right sliding sleeve or bottom right worm screw; The structure of left and right sides synchronous fuel tank or cylinder is identical; The rod chamber of left and right sides synchronous fuel tank or cylinder communicates by pipeline, and the rodless cavity of left and right sides synchronous fuel tank or cylinder communicates by pipeline.So that left and right sides bed board rotates synchronously, also reduced that bed board is clamped human body simultaneously and the possibility that injures human body by synchronous fuel tank or cylinder.
Above-mentioned actuating unit, the bottom left worm screw links to each other with left sliding sleeve; The output shaft of left sliding sleeve and left drive unit links to each other by the left sliding pair of axially slide mutually (but circumferentially can not relatively rotate); The bottom right worm screw links to each other with right sliding sleeve; The output shaft of right sliding sleeve and right drive unit links to each other by the right sliding pair of axially slide mutually (but circumferentially can not relatively rotate); It also comprises be used to the control circuit of controlling left drive unit and right drive unit, when left and right sides bed board turn to when crossing vertical position, stops action under the control of the control circuit of left drive unit and right drive unit.When left and right sides bed board turn to when crossing vertical position, left and right sides bed board also rotates under the drive of left drive unit and right drive unit, if human body is clamped between the bed board of the left and right sides or is clamped between a left side (right side) bed board and the bedstead, this people's danger may occur crushing.Generation for fear of this situation, so should cut off the power of left drive unit and right drive unit, so that it stops action, and allow left and right sides bed board under Action of Gravity Field, naturally rotate (and translation), like this, both made someone be sandwiched between the bed board of the left and right sides or be sandwiched between a left side (right side) bed board and the bedstead, because (power is cut off) pressure is less, thereby it is injured to reduce human body; The people also can firmly push bed board open, to reach the effect of protection human body, reduces the injured possibility of human body.Because left and right sides bed board is when rotating, left and right sides driven wheel must rotate average moving, therefore, need to link to each other by sliding pair (left sliding pair, right sliding pair) with the output shaft of drive unit (left drive unit, right drive unit) by sliding sleeve (left sliding sleeve, right sliding sleeve).Like this, when the output shaft rotation of drive unit, can drive sliding sleeve by sliding pair and rotate, rotate thereby drive lower worm screw (lower-left worm screw, bottom right worm screw), realize rotation and the translation of left and right sides driven wheel.When turning to, left and right sides bed board crosses vertical position, the power of drive unit is cut off, when its output shaft does not rotate, left and right sides bed board rotates under Action of Gravity Field naturally, drive left and right sides driven wheel and rotate and translation, lower worm screw (lower-left worm screw, bottom right worm screw) and sliding sleeve (left sliding sleeve, right sliding sleeve) slide vertically with respect to the output shaft of drive unit (left drive unit, right drive unit).When left and right sides bed board rotated (and translation) naturally under Action of Gravity Field, owing to having the effect of two synchronous fuel tanks or cylinder, the velocity of rotation of left and right sides bed board can be not too fast, further increased the safety coefficient that prevents from crushing the people.Above-mentioned actuating unit, it also comprises for limiting bottom left worm screw or the left sliding sleeve left support abutment that moves axially distance with respect to left drive unit output shaft, also comprises for limiting bottom right worm screw or the right sliding sleeve right support abutment that moves axially distance with respect to right drive unit output shaft.
Above-mentioned actuating unit, it comprises left lateral journey switch and the right lateral journey switch that is arranged on the bedstead, the output connection control circuit of left lateral journey switch and right lateral journey switch; When left and right sides bed board turn to when crossing vertical position, left sliding sleeve, bottom left worm screw or left piston bar contact with left lateral journey switch, thereby so that left lateral journey switch output signal so that left drive unit stops action; Simultaneously, right sliding sleeve, bottom right worm screw or right piston rod contact with right lateral journey switch, thereby so that right lateral journey switch output signal so that right drive unit stop the action.Can determine accurately that by travel switch (left lateral journey switch, right lateral journey switch) left and right sides bed board turn to the state of crossing vertical position.
Above-mentioned actuating unit, left drive unit and right drive unit are for being same drive unit (such as motor).
Above-mentioned actuating unit, left sliding pair and right sliding pair are spline pair.
The present invention provides a kind of two bed boards simultaneously when rotating, so that bed board to the both sides translation of bedstead, to increase human body from the space that falls between two bed boards, prevents when falling by two bed board extruding; Increase simultaneously the Antiseismic bed in the space that holds human body in the bedstead.
This Antiseismic bed comprises bedstead, two split type left and right sides bed boards; Be provided with between described bedstead and the left and right sides bed board and can make two left and right sides bed boards towards the rightabout rotation and make the human body that is positioned on the bed board of the left and right sides fall into the actuating unit of bedstead, and described left and right sides bed board can block above human body under actuating unit drives after in human body falls into bedstead, and described actuating unit is above-mentioned actuating unit.
Above-mentioned Antiseismic bed when left and right sides bed board blocks above human body, forms a triangle under actuating unit drives.
Description of drawings
Fig. 1 is the front view (guard mode) of this Antiseismic bed.
Fig. 2 is the rearview of this Antiseismic bed.
Fig. 3 is the front view (horizontal (normally) state) of this Antiseismic bed.
Fig. 4 is the left view (save left bed board, and right bedboard being in vertical state) of this Antiseismic bed.
Fig. 5 is the connection diagram of synchronous fuel tank.
Fig. 6 is the cutaway view (guard mode) (the A-A cross-sectional schematic of Fig. 4) of this Antiseismic bed.
The specific embodiment
The invention will be further described by reference to the accompanying drawings below by embodiment.
Shown in Fig. 1-4, this Antiseismic bed comprises bedstead 1, and bedstead 1 comprises rectangular base plate 11, is fixed with respectively headpiece 12, tailstock plate 13, left plate 14 and right plate in four sides of base plate 11.Be provided with two along bedstead 1 long axis and the left and right sides bed board axle that can rotate at the headpiece 12 of bedstead 1 and tailstock plate 13, on left and right sides bed board axle 21,22, be fixed with respectively left and right sides bed board 31,32.Left and right sides bed board forms a complete bed board when level.Left plate 14 matches by concaveconvex structure 100 with left bed board 31 sidepieces, and right plate and right bedboard 32 sidepieces match by another concaveconvex structure 100, and the concaveconvex structure of the concaveconvex structure of left bed board 31 sidepieces and right bedboard 32 sidepieces also matches.This part structure has a detailed description in patent application CN101874689A, repeats no more.
The actuating unit 4 that drives bed board upset and translation comprises upper left worm screw 44, bottom left worm screw 45, left chute 41, upper right worm screw 54, bottom right worm screw 55, right rail 51, left sliding sleeve 46, right sliding sleeve 56, the left axis of guide 47, the right axis of guide 57, reductor 400, motor 300, left synchronous fuel tank (cylinder) 82, right synchronous fuel tank (cylinder) 92, left lateral journey switch, right lateral journey switch etc.
The front and back end of left bed board axle 21 is slidingly arranged in respectively in the left chute 41 of opening on headpiece 12, the tailstock plate 13, and the front and back end of right bedboard axle 22 is slidingly arranged in respectively in the right rail 51 of opening on headpiece 12, the tailstock plate 13.
The front end of left bed board axle 21 arranges left driven wheel 42, and the rear end arranges left driven gear 43.The front end of right bedboard axle 22 arranges right driven wheel 52, and the rear end arranges right driven gear 53.Upper left worm screw 44 and upper right worm screw 54 are fixed on the headpiece 12.
The left end of bottom left worm screw 45 links to each other with the left axis of guide 47, and right-hand member links to each other with left sliding sleeve 46.The left axis of guide 47 is slidingly arranged in the left support abutment 48 that is fixed on the bedstead, left support abutment plays guiding, supporting role to the left axis of guide, also bottom left worm screw 45 moved axially position-limiting action (after bottom left worm screw 45 was moved to the left certain distance, its left part 451 contacted with left support abutment right part 481 and can not be moved to the left).The output shaft 200 of left sliding sleeve 46 and reductor 400 links to each other by the spline pair of axially slide mutually (but circumferentially can not relatively rotate).
The right-hand member of bottom right worm screw 55 links to each other with the right axis of guide 57, and left end links to each other with right sliding sleeve 56.The right axis of guide 57 is slidingly arranged in the right support abutment 58 that is fixed on the bedstead, right support abutment plays guiding, supports the right axis of guide, also bottom right worm screw 55 moved axially position-limiting action (after bottom right worm screw 55 moved right certain distance, its right part 551 contacted with right support abutment left part 581 and can not move right).The output shaft 200 of right sliding sleeve 56 and reductor links to each other by the spline pair of axially slide mutually (but circumferentially can not relatively rotate).
The output shaft 200 of upper left worm screw 44, bottom left worm screw 45, left chute 41, upper right worm screw 54, bottom right worm screw 55, right rail 51, left sliding sleeve 46, right sliding sleeve 56, the left axis of guide 47, the right axis of guide 57, reductor all parallels or is coaxial.
Upper left worm screw 44, bottom left worm screw 45 mesh with the top and the bottom of left driving worm gear 42 respectively; Upper right worm screw 54, bottom right worm screw 55 mesh with the top and the bottom of right driving worm gear 52.
The piston rod 49 of left synchronous fuel tank 82 links to each other with the left axis of guide 47 by a rebound 71, and the piston rod 59 of right synchronous fuel tank 92 links to each other with the right axis of guide 57.Referring to Fig. 5, the structure of left and right sides synchronous fuel tank is identical; The rod chamber of left and right sides synchronous fuel tank communicates by pipeline 93, and the rodless cavity of left and right sides synchronous fuel tank communicates by pipeline 83.
Axial direction at the left axis of guide 47 is provided with the left lateral journey switch that is fixed on the bedstead, is provided with the right lateral journey switch that is fixed on the bedstead at the axial direction of the right axis of guide 57.
Rear left worm screw 81 and rear right worm screw 91 are fixed on the tailstock plate 13.Left driven gear 43 and 81 engagements of rear left worm screw, right driven gear 53 and 91 engagements of rear right worm screw.
When normal condition, form one flat plates and be positioned on the bedstead referring to Fig. 3,4, two left and right sides bed board docking.When the relevant sensor in the control circuit detects the earthquake generation, motor action, the output shaft rotation of reductor drives sliding sleeve (left sliding sleeve, right sliding sleeve) and rotates, and lower worm screw (lower-left worm screw, bottom right worm screw) is namely rotated.And upper worm screw (upper left worm screw, upper right worm screw) to be fixed on the bedstead be motionless, therefore the driven wheel (left driven wheel, right driven wheel) that all meshes with lower worm screw and upper worm screw is when can only rotate and along upper worm screw roll (left driven wheel rolls to the left, right driven wheel rolls to the right), namely, lower-left worm screw (and left sliding sleeve and left axis of guide) is moved to the left when rotating vertically, and bottom right worm screw (and right sliding sleeve and right axis of guide) moves right when rotating vertically.Like this, the left bed board axle rotates and along left chute to left, drives that left bed board rotates and to left; The right bedboard axle rotates and along right rail to right translation, drives that right bedboard rotates and to right translation.
Before left and right sides bed board is from horizontal (normally) state turnover that is positioned at horizontal level to vertical position, because the Action of Gravity Field of left bed board, left driven wheel is to the generation thrust to the right of lower-left worm screw, so that lower-left worm screw and left sliding sleeve are pressed on to the right on the speed reducer output shaft all the time, lower-left worm screw (and left sliding sleeve and left axis of guide) can not move axially; In like manner, because the Action of Gravity Field of right bedboard, right driven wheel is to the generation thrust left of bottom right worm screw, so that bottom right worm screw and right sliding sleeve are pressed on left on the speed reducer output shaft all the time, bottom right worm screw (and right sliding sleeve and right axis of guide) can not moved vertically yet.
Certainly, when left and right sides bed board from horizontal (normally) state turnover that is positioned at horizontal level after cross vertical position, because the Action of Gravity Field of left and right sides bed board, left driven wheel is to the generation thrust left of lower-left worm screw, right driven wheel is to the generation thrust to the right of bottom right worm screw, because sliding sleeve (left sliding sleeve, right sliding sleeve) can be with respect to speed reducer output shaft at axial relative sliding, thereby so that the left axis of guide (bottom left worm screw, left sliding sleeve) is moved to the left, the right axis of guide (bottom right worm screw, right sliding sleeve) moves right.
When left and right sides bed board from horizontal (normally) state turnover that is positioned at horizontal level after cross vertical position, the left axis of guide that is moved to the left is vertically run into left lateral journey switch, perhaps, run into right lateral journey switch by the right axis of guide that moves left vertically, control circuit control motor stops action.When the power of motor is cut off, its speed reducer output shaft does not rotate, but because left and right sides bed board has turn to and has crossed vertical position, at this moment left bed board can clockwise rotate because of Action of Gravity Field still continuation, right bedboard can rotate counterclockwise because of Action of Gravity Field still continuation, so left and right sides bed board axle still can rotate.Left and right sides bed board axle rotates, left and right sides driven wheel must rotate, and inevitable translation when rotating of left and right sides driven wheel (the left bed board axle rotates and to left, the right bedboard axle rotate and to right translation), like this, lower-left worm screw (and left sliding sleeve and left axis of guide) is being rotated and is sliding (speed reducer output shaft does not rotate) left vertically with respect to speed reducer output shaft under the drive of the left driven wheel of left, bottom right worm screw (and right sliding sleeve and right axis of guide) rotate and under the drive of the right driven wheel of right translation with respect to speed reducer output shaft slide to the right vertically (speed reducer output shaft does not rotate).Until the left bed board axle contacts with the left end of left chute, the right bedboard axle contacts with the right-hand member of right rail, and left bed board axle and right bedboard axle stop translation, and the upper end in contact of left and right sides bed board forms firm triangle (referring to Fig. 1,2).Left and right sides bed board from horizontal (normally) state turnover that is positioned at horizontal level after cross vertical position; when human body is jammed; because reductor does not rotate; pressure is little; thereby it is injured to reduce human body; and the people can firmly push bed board open, and human body can enter in the body, to reach the effect of protection human-body safety.
Four pressure sensors 500 are arranged on the below, four bights of bedstead, and support on the ground.Four pressure sensors are for detection of the weight of whole bed.When sleeping on the bed people being arranged, pressure sensor detects pressure and becomes large, and its output signal is to control circuit, and motor just may move.When on the bed during nobody, the pressure that pressure sensor detects does not increase, and has both made seismic sensor detect vibration signal, and control circuit can not send signal so that motor action yet.More smooth in the process of upset and translation for left and right sides bed board, left driven gear 43 meshes with rear left worm screw 81, right driven gear 53 and 91 engagements of rear right worm screw.In driven wheel rotation and translation process, driven gear (left driven gear, right driven gear) rotates and translation with respect to rear worm screw (rear left worm screw, rear right worm screw).
Horizontal (normally) state variation that Antiseismic bed recited above is arranged in horizontal level from its left and right sides bed board forms the process of leg-of-mutton guard mode to left and right sides bed board; the left part 451 of bottom left worm screw 45 does not contact with the right part 481 of left support abutment 48 all the time, and the right part 551 of bottom right worm screw 55 does not contact with the left part 581 of right support abutment 58 all the time.Return to horizontal (normally) state from the guard mode variation then different, brief description changes to the process of horizontal (normally) state from guard mode.
Motor gets electric rotation, and the output shaft rotation of reductor drives sliding sleeve (left sliding sleeve, right sliding sleeve) and rotates, and lower worm screw (lower-left worm screw, bottom right worm screw) is namely rotated.Because left sliding sleeve (and lower-left worm screw and left axis of guide) can be moved to the left vertically, right sliding sleeve (and bottom right worm screw and right axis of guide) can move right vertically, so driven wheel this moment (left driven wheel, right driven wheel) is motionless, left sliding sleeve (and lower-left worm screw and left axis of guide) is moved to the left and rotates, right sliding sleeve (and bottom right worm screw and right axis of guide) moves right and rotates, until the left part 451 of bottom left worm screw 45 contacts with the right part 481 of left support abutment 48, and the right part 551 of bottom right worm screw 55 is with till the left part 581 of right support abutment 58 contacts.The left part of bottom left worm screw 45 is with after the right part of left support abutment 48 contacts, and the right part of bottom right worm screw 55 is with after the left part of right support abutment 58 contacts, because can not moving axially, lower worm screw can only rotate, so left driven wheel just begins to rotate counterclockwise and to right translation, right driven wheel just begins to clockwise rotate and to left, thereby drive that left bed board rotates counterclockwise and to right translation, right bedboard clockwise rotates and to left.When left and right sides bed board turn to from leg-of-mutton guard mode cross vertical position after, motor outage speed reducer output shaft was not turned, left and right sides bed board still can lean on the gravity of self to be rotated further (until left and right sides bed board rotates level).When left and right sides bed board turn to from leg-of-mutton guard mode cross vertical position after; because driven wheel (left driven wheel, right driven wheel) in axial direction changes to lower worm screw (lower-left worm screw, bottom right worm screw) thrust; cause left sliding sleeve (and lower-left worm screw and left axis of guide) to move right; right sliding sleeve (and bottom right worm screw and right axis of guide) is moved to the left; like this; just separate the right part of the left part of bottom left worm screw 45 and left support abutment 48, and also separate the left part of the right part of bottom right worm screw 55 and right support abutment 58.
No matter be left and right sides bed board forms leg-of-mutton guard mode to left and right sides bed board from horizontal (normally) state variation that is positioned at horizontal level process, or change to the process of horizontal (normally) state from guard mode, when left and right sides bed board rotates (and translation) naturally under Action of Gravity Field, owing to having the effect of two synchronous fuel tanks, so that synchronous all the time during the to the left and right both sides translation of left and right sides bed board, with about left driven wheel, the right driven wheel of lower worm engaging just rotate synchronously, so the upset of left and right sides bed board, translation all are synchronous; And owing to having the restriction of synchronous fuel tank, the speed of to the left and right both sides translation of left and right sides bed board (lower worm screw moves axially to the left and right namely) is basicly stable and speed is slower; Since about lower worm shaft be subject to the restriction of synchronous fuel tank and slower to translational speed, with about the rotating speed of left driven wheel, right driven wheel of lower worm engaging just slower, so the velocity of rotation of left and right sides bed board can be not too fast, prevent that people or other thing are sandwiched between the bed board of the left and right sides and are crushed; In addition, people or other thing were sandwiched between the bed board of the left and right sides, because left and right sides bed board is to rotate (not being the driving that relies on motor) because of gravity, add that synchronous fuel tank can share enough large gravity of left and right sides bed board, so the power that is subject to about the people between the bed board of the left and right sides or other thing is less, the guarantor can not crushed, and has improved safety coefficient.
Claims (9)
1. the actuating unit of the upset of the drive bed board in the Antiseismic bed and translation, it is characterized in that: it comprises the left and right sides bed board axle that is fixedly linked respectively with left and right sides bed board, left and right sides bed board axle is slidingly arranged in respectively in the left and right sides chute on the bedstead, drive worm gear about the end of left and right sides bed board axle arranges, up and down two piece left worm screws parallel with left chute mesh with the top and the bottom of left driving worm gear respectively; Up and down two piece right worm screws parallel with right rail mesh with the top and the bottom of right driving worm gear respectively; Upper left worm screw and upper right worm screw are fixed on the bedstead; The bottom left worm screw links to each other with the output shaft of the left drive unit that drives the rotation of bottom left worm screw; The bottom right worm screw links to each other with the output shaft of the right drive unit that drives the rotation of bottom right worm screw; Also comprise be used to the control circuit of controlling left drive unit and right drive unit, when left and right sides bed board turn to when crossing vertical position, under the control of the control circuit of left drive unit and right drive unit, stop action.
2. actuating unit as claimed in claim 1, two synchronous fuel tanks or cylinder about it is characterized in that: further comprising; The piston rod of left synchronous fuel tank or cylinder links to each other with left sliding sleeve or bottom left worm screw, and the piston rod of right synchronous fuel tank or cylinder links to each other with right sliding sleeve or bottom right worm screw; The structure of left and right sides synchronous fuel tank or cylinder is identical; The rod chamber of left and right sides synchronous fuel tank or cylinder communicates by pipeline, and the rodless cavity of left and right sides synchronous fuel tank or cylinder communicates by pipeline.
3. actuating unit as claimed in claim 2, it is characterized in that: the bottom left worm screw links to each other with left sliding sleeve; Left sliding sleeve links to each other by the left sliding pair that axially slides mutually with the output shaft of left drive unit; The bottom right worm screw links to each other with right sliding sleeve; Right sliding sleeve links to each other by the right sliding pair that axially slides mutually with the output shaft of right drive unit.
4. actuating unit as claimed in claim 3, it is characterized in that: it comprises left lateral journey switch and the right lateral journey switch that is arranged on the bedstead, the output connection control circuit of left lateral journey switch and right lateral journey switch; When left and right sides bed board turn to when crossing vertical position, left sliding sleeve, bottom left worm screw or left piston bar contact with left lateral journey switch, thereby so that left lateral journey switch output signal so that left drive unit stops action; Simultaneously, right sliding sleeve, bottom right worm screw or right piston rod contact with right lateral journey switch, thereby so that right lateral journey switch output signal so that right drive unit stop the action.
5. actuating unit as claimed in claim 3, it is characterized in that: further comprising for limiting bottom left worm screw or the left sliding sleeve left support abutment that moves axially distance with respect to left drive unit output shaft, also comprise for limiting bottom right worm screw or the right sliding sleeve right support abutment that moves axially distance with respect to right drive unit output shaft.
6. actuating unit as claimed in claim 1, it is characterized in that: left drive unit and right drive unit are same drive units.
7. actuating unit as claimed in claim 3, it is characterized in that: left sliding pair and right sliding pair are spline pair.
8. an Antiseismic bed comprises bedstead, two split type left and right sides bed boards; Be provided with between described bedstead and the left and right sides bed board and can make two left and right sides bed boards towards the rightabout rotation and make the human body that is positioned on the bed board of the left and right sides fall into the actuating unit of bedstead, and described left and right sides bed board can block above human body under actuating unit drives after in human body falls into bedstead, and it is characterized in that: described actuating unit is actuating unit claimed in claim 1.
9. Antiseismic bed as claimed in claim 8 is characterized in that: when left and right sides bed board blocks above human body, form a triangle under actuating unit drives.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110234578 CN102283526B (en) | 2011-08-16 | 2011-08-16 | Quakeproof bed and power mechanism driving bed board of quakeproof bed to roll over and translate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110234578 CN102283526B (en) | 2011-08-16 | 2011-08-16 | Quakeproof bed and power mechanism driving bed board of quakeproof bed to roll over and translate |
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| Publication Number | Publication Date |
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| CN102283526A CN102283526A (en) | 2011-12-21 |
| CN102283526B true CN102283526B (en) | 2013-04-24 |
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| CN 201110234578 Expired - Fee Related CN102283526B (en) | 2011-08-16 | 2011-08-16 | Quakeproof bed and power mechanism driving bed board of quakeproof bed to roll over and translate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5080993B2 (en) * | 2008-01-18 | 2012-11-21 | 株式会社ミツバ | Electric actuator and electric bed |
| CN101543411B (en) * | 2008-03-24 | 2014-05-28 | 深圳迈瑞生物医疗电子股份有限公司 | Panel telescoping mechanism |
| CN101874689B (en) * | 2010-06-30 | 2014-09-10 | 溧阳市正翔精密机械有限公司 | Intelligent earthquake bed |
-
2011
- 2011-08-16 CN CN 201110234578 patent/CN102283526B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN102283526A (en) | 2011-12-21 |
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