CN113974307A - Folding table convenient to fix - Google Patents
Folding table convenient to fix Download PDFInfo
- Publication number
- CN113974307A CN113974307A CN202111262638.9A CN202111262638A CN113974307A CN 113974307 A CN113974307 A CN 113974307A CN 202111262638 A CN202111262638 A CN 202111262638A CN 113974307 A CN113974307 A CN 113974307A
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- Prior art keywords
- connecting rod
- lever
- sealing member
- folding
- folding table
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- 230000007246 mechanism Effects 0.000 claims abstract description 47
- 230000008859 change Effects 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 77
- 238000010521 absorption reaction Methods 0.000 claims description 17
- 230000033001 locomotion Effects 0.000 claims description 8
- 241000252254 Catostomidae Species 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 32
- 239000010959 steel Substances 0.000 description 32
- 238000001179 sorption measurement Methods 0.000 description 27
- 238000000034 method Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 10
- 230000003139 buffering effect Effects 0.000 description 9
- 230000009471 action Effects 0.000 description 6
- 230000007306 turnover Effects 0.000 description 5
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B3/00—Folding or stowable tables
- A47B3/08—Folding or stowable tables with legs pivoted to top or underframe
- A47B3/0809—Folding or stowable tables with legs pivoted to top or underframe with elastic locking means
- A47B3/0815—Folding or stowable tables with legs pivoted to top or underframe with elastic locking means the resilient force of the elastic locking means acting in a direction perpendicular to the axis of rotation of the leg
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B13/00—Details of tables or desks
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B21/00—Tables or desks for office equipment, e.g. typewriters, keyboards
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B31/00—Service or tea tables, trolleys, or wagons
- A47B31/04—Service or tea tables, trolleys, or wagons foldable
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B91/00—Feet for furniture in general
- A47B91/02—Adjustable feet
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B91/00—Feet for furniture in general
- A47B91/08—Feet for furniture in general connected to the floor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B47/00—Suction cups for attaching purposes; Equivalent means using adhesives
- F16B47/006—Suction cups for attaching purposes; Equivalent means using adhesives the suction cups being activated by the rotation of a cranked lever arm
Abstract
The invention relates to a folding table convenient to fix, which relates to the field of office equipment and comprises table legs and a table top plate, wherein the table top plate is rotatably arranged on the table legs, a limiting mechanism for limiting the table top plate to rotate is arranged between the table legs and the table top plate, a sucker is arranged at the lower end of each table leg, a linkage mechanism is arranged on each table leg, one end of each linkage mechanism is connected with the sucker, the other end of each linkage mechanism is connected with the table top plate, the table top plate rotates to drive the linkage mechanism to move, and the linkage mechanism drives the suckers to ascend and descend and can change the vacuum degrees of the suckers. This application has the convenience and fixes the effect of folding table.
Description
Technical Field
The invention relates to the field of office equipment, in particular to a folding table convenient to fix.
Background
The table has the function of placing articles and can be used for the user to have a meal, entertain and the like on the table top plate. At present, some folding tables are disclosed in the related art, after people use the tables, the table top plates of the tables are turned over, then the wheels at the bottoms of the tables are unlocked one by one, and the tables are pushed to places where the tables are specially placed, so that the occupied space is saved; when the foldable table needs to be used, the table is pushed out, then the table is opened, and finally the wheels of the table are locked one by one to be used.
However, the wheels of the folding table are locked and fixed by installing locking structures, the locking structures of the wheels are separately arranged, and when the folding table needs to be pushed or fixed, the locking or unlocking operation needs to be carried out on each wheel respectively, so that the operation is inconvenient.
In view of the above-mentioned related art, the inventor believes that there is a drawback in that the folding table is inconvenient to operate when it needs to be pushed or fixed.
Disclosure of Invention
In order to improve the inconvenient problem of operation when folding table need promote or fix, this application provides a folding table convenient to it is fixed.
The application provides a folding table convenient to it is fixed adopts following technical scheme:
the utility model provides a folding table convenient to it is fixed, includes table foot and desktop board, the desktop board rotate install in on the table foot, install the restriction between table foot and the desktop board pivoted stop gear, the sucking disc is installed to the lower extreme of table foot, install link gear on the table foot, link gear's one end is connected the sucking disc, link gear's the other end is connected the desktop board, the desktop board rotates and drives link gear moves, link gear drives the sucking disc goes up and down and can change the vacuum of sucking disc.
By adopting the technical scheme, the linkage mechanism is driven to move in the process that the table top plate is turned over from the folding state to the using state, the sucker is driven to descend by the linkage mechanism, the sucker is tightly pressed on the floor, the vacuum degree of the sucker is increased by the continuous movement of the linkage mechanism along with the continuous turning of the table top plate, the sucker is firmly fixed on the floor by the external atmospheric pressure, and the folding table is fixed; on the contrary, when the tabletop plate is turned over from the using state to the folding state, the linkage mechanism moves to reduce the vacuum degree of the sucker, when the vacuum degree of the sucker is reduced to 0, the linkage mechanism continues to move to drive the sucker to ascend and separate from the floor, so that the folding table is unlocked, and the folding table can be pushed at the moment; the unlocking and locking of the folding table are driven by the turnover table panel, no additional operation is needed, and the folding table is convenient and quick to operate.
Preferably, the sucking disc includes disk body and sealing member, the opening of disk body is down, the edge connection of sealing member the inner wall of disk body forms sealedly, the sealing member can up-movement or expansion, the sealing member will the inner chamber of disk body is separated into and is adsorbed chamber and extension chamber, it locates to adsorb the chamber the below of sealing member, the extension chamber is located the top of sealing member, the top of disk body is equipped with the intercommunication the connecting hole in extension chamber, link gear connects respectively disk body and sealing member, link gear can drive the sealing member and change the size in absorption chamber.
Through adopting above-mentioned technical scheme, link gear gets into from the connecting hole and connects the sealing member, and the connecting hole can keep the atmospheric pressure in extension chamber the same with atmospheric pressure, and link gear drives the up motion or the expansion of sealing member, can make the grow in absorption chamber, if sealed to the opening of disk body this moment, then adsorb the chamber because the grow of volume can lead to atmospheric pressure to descend, produce vacuum to make the sucking disc compressed tightly on the floor by atmospheric pressure.
Preferably, the linkage mechanism comprises a lever and a connecting piece, the middle part of the lever is hinged to the table legs through a hinge shaft, one end of the lever is arranged above the table body and hinged to the table body, one end of the connecting piece is connected with the sealing piece and one end, far away from the table body, of the lever respectively, the other end of the connecting piece is connected with a rotary table, and the rotary table rotates along with the rotation of the table top plate.
By adopting the technical scheme, in the process of turning the table top board from a folded state to a use state, the table top board rotates to drive the rotary disc to rotate, the rotary disc rotates to pull the connecting piece, the connecting piece drives one end of the lever to move upwards, the other end of the lever drives the disc body to move downwards, the open end of the disc body is pressed on the floor and sealed with the floor, at the moment, the adsorption cavity becomes a sealed space, meanwhile, the connecting piece pulls the sealing piece to expand or move upwards to enlarge the adsorption cavity, after the sealing is formed between the adsorption cavity and the floor, the connecting piece continues to apply downward pressure to the suction disc through the lever along with the continuous rotation of the table top board, at the moment, the table legs can be jacked up, the connecting piece also continues to pull the sealing piece to enlarge the adsorption cavity, the air pressure in the adsorption cavity is reduced to form a certain vacuum degree, and the sucking disc is pressed on the floor by the external atmospheric pressure, thereby fixing the folding table; on the contrary, in the process of turning the table top plate from the use state to the folding state, the rotation direction of the table top plate is opposite, the rotating disc is driven to rotate reversely, the connecting piece, the lever, the disc body and the sealing piece are loosened, the size of the adsorption cavity is recovered, the vacuum degree of the adsorption cavity is reduced to 0, the disc body is separated from the floor, and the folding table can be pushed.
Preferably, the connecting piece includes the cable, the sheath of cable is fixed in the table foot, the one end of cable is equipped with two branches, one of them branch is located the top of lever and fixed connection the lever, another branch passes connecting hole and fixed connection the sealing member, the cable is kept away from the one end of branch encircles and fixed connection the carousel.
Through adopting above-mentioned technical scheme, the cable can be crooked, conveniently arranges to the steel wire of cable and the sheath of cable can the relative slip, fix the sheath of cable on the table foot during the installation, then be connected to the steel wire of cable on sealing member, lever and the carousel, simple to operate.
Preferably, the connecting piece includes first connecting rod, second connecting rod, third connecting rod and fourth connecting rod, the upper end of first connecting rod articulate in the edge of carousel, the lower extreme of first connecting rod articulates the one end of second connecting rod, the other end of second connecting rod articulates the one end of third connecting rod, the other end of third connecting rod is connected the upper end of fourth connecting rod, the lower extreme of fourth connecting rod passes the connecting hole and is connected with the sealing member, the middle part of second connecting rod and the middle part of third connecting rod articulate respectively through the pivot in the table foot, the lever is kept away from the one end of disk body articulate in the lower extreme of first connecting rod.
By adopting the technical scheme, power is transmitted to the sealing element through the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod, the direction of acting force applied to the sealing element is the same as that of the acting force applied to the first connecting rod, and the direction of acting force applied to the disc body is opposite to that of the acting force applied to the first connecting rod, so that the functions of driving the sucker to lift and changing the size of the adsorption cavity are realized; the acting force which can be borne by the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod is large, and when the linkage mechanism is used as a main supporting stress structure, the service life of the linkage mechanism can be prolonged.
Preferably, the lower end face of the tray body is provided with a telescopic buffer sealing ring.
By adopting the technical scheme, the adsorption cavity can be sealed when the buffer sealing ring is in contact with the floor, and the buffer sealing ring keeps sealing the adsorption cavity in the process that the adsorption cavity is continuously enlarged, so that the vacuum degree of the adsorption cavity is increased, and the sucker is more firmly adsorbed on the floor; simultaneously, continue the grow in-process at the absorption chamber, the buffering sealing washer can continue to be compressed for the disk body can continue toward descending, thereby can avoid the table foot to be taken over the ground board by the sucking disc and lead to sucking disc and linkage structure to take place as the main condition of supporting the stress structure of folding table, continuously keep the table foot as the main stress structure that supports of folding table, extension sucking disc and linkage mechanism's life.
Preferably, a tension spring is arranged between the lever and the connecting piece, and the connecting piece is connected with the lever through the tension spring.
By adopting the technical scheme, after the sucker is in contact with the floor to seal the floor, the floor can prevent the disc body from continuously descending, the tension spring is stretched along with the continuous pulling of the connecting piece, the connecting piece can continuously stretch the sealing piece, so that the adsorption cavity is enlarged, the vacuum degree of the adsorption cavity is increased, and the sucker is more firmly adsorbed on the floor; simultaneously, continue the grow in-process at the absorption chamber, tension spring continues to be stretched to can avoid the table foot to be taken place as the main condition of supporting the bearing structure of folding table by sucking disc top terrain and lead to sucking disc and linkage structure, continuously keep the table foot as the main bearing structure of folding table, prolong sucking disc and linkage mechanism's life.
Preferably, a return spring is arranged between the lever and the table legs, and two ends of the return spring are respectively and fixedly connected with the lever and the table legs.
Through adopting above-mentioned technical scheme, reset spring can make lever automatic re-setting to mention the sucking disc, leave the floor, avoid folding table in the removal in-process sucking disc on dropping the floor and with the floor contact production friction and cause the sucking disc wearing and tearing.
Preferably, the rotating disc is connected with an article frame, the article frame is rotatably connected with the table legs, the rotating disc is fixed at one end of the article frame, the article frame is connected with the table top plate through a pulling and connecting piece, and two ends of the pulling and connecting piece are respectively connected with the article frame and the table top plate.
Through adopting above-mentioned technical scheme, the thing frame is used for placing article, and the desktop board rotates and drives the thing frame through drawing the connecting piece and rotate, draws the connecting piece when the desktop board is folding and folds, draws the connecting piece when the desktop board expandes and expandes, reduces the occupation space when the thing frame is folding, and the thing frame also rotates the user state when the desktop board turns to the user state simultaneously, and the state of thing frame is synchronous with the state of desktop board, convenient operation.
Preferably, stop gear includes bayonet lock, connecting axle, elastic component, gag lever post and handle, the bayonet lock is fixed in on the desktop board, the connecting axle rotates to be connected the table foot, the gag lever post is fixed in on the connecting axle, be equipped with the draw-in groove on the gag lever post, the bayonet lock can be gone into in the draw-in groove, the both ends of elastic component fixed connection respectively gag lever post and table foot, handle fixed connection the connecting axle.
By adopting the technical scheme, when the desktop plate rotates from a folded state to a use state, the bayonet lock is close to the limiting rod along with the rotation of the desktop plate, when the bayonet lock is contacted with the limiting rod, the limiting rod is pushed to enable the limiting rod and the connecting shaft to rotate, and finally the bayonet lock reaches the opening of the bayonet lock along with the turnover of the desktop plate, the limiting rod resets under the elastic action of the elastic piece, the bayonet lock is clamped into the bayonet lock to fix the bayonet lock, so that the desktop plate stops rotating; when the table top board is required to be folded, the handle is pulled, so that the connecting shaft drives the limiting rod to rotate, the clamping pin is separated from the clamping groove, the locking of the table top board is released, and the table top board can be folded by turning over the table top board.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the table board drives the linkage mechanism to move in the process of turning from a folding state to a using state, the linkage mechanism drives the sucker to descend, the sucker is tightly pressed on the floor, the linkage mechanism continues to move along with the continuous turning of the table board, so that the vacuum degree of the sucker is increased, the sucker is firmly fixed on the floor by the external atmospheric pressure, and the folding table is fixed; on the contrary, when the table top plate is turned from the using state to the folding state, the linkage mechanism drives the sucker to ascend to be separated from the floor, so that the folding table is unlocked and can be pushed; the folding table is unlocked and locked by being driven by the turnover table panel, so that additional operation is not needed, and the folding table is convenient and quick to operate;
2. the linkage mechanism comprises a lever and a connecting piece, the connecting piece is connected with the sealing piece and one end of the lever, the other end of the lever is connected with the disc body, the power generated by the turnover of the table top plate is transmitted to the lever and the sealing piece through the connecting piece, the lever transmits the power to the disc body, and the movement directions of the disc body and the sealing piece are opposite under the action of the lever, so that the vacuum degree of the adsorption cavity is increased or reduced, and the functions of driving the sucker to lift and changing the vacuum degree of the sucker are realized;
3. the buffering sealing washer that can stretch out and draw back is installed to the lower terminal surface of disk body, the buffering sealing washer seals the absorption chamber when the contact floor, continue the grow in-process in the absorption chamber, the buffering sealing washer can continue to be compressed, make the disk body can continue toward descending, thereby can avoid the table foot to be taken place as the main condition of supporting the bearing structure of folding table by sucking disc top terrain board and lead to sucking disc and linkage structure, continuously keep the main bearing structure of table foot as folding table, the life of extension sucking disc and linkage mechanism.
Drawings
Fig. 1 is a front view of a folding table for easy fixing according to embodiments 1-6 of the present application.
Fig. 2 is a sectional view a-a in fig. 1.
Fig. 3 is a schematic view of a folding table convenient to fix according to embodiments 1-6 of the present application in a use state.
Fig. 4 is a schematic view of a folding table for fixing according to embodiments 1-6 of the present application.
Fig. 5 is a schematic structural view of a stopper mechanism in embodiments 1 to 6 of the present application.
Fig. 6 is an enlarged view of example 1 of the present application at B.
Fig. 7 is an enlarged view in partial section at the suction cup of embodiment 2 of the present application.
Fig. 8 is a schematic structural view of the linkage mechanism and the suction cup according to embodiment 3 of the present application.
Fig. 9 is an enlarged view in partial section at the suction cup of the example 4 of the present application.
Fig. 10 is an enlarged view in partial section at the suction cup of the example 5 of the present application.
Fig. 11 is an enlarged view in partial section at the suction cup of the example 6 of the present application.
Description of reference numerals: 1. a table top plate; 2. a table leg; 3. a limiting mechanism; 31. a bayonet lock; 32. a limiting rod; 33. a connecting shaft; 34. an elastic member; 35. a handle; 4. a rack; 5. a linkage mechanism; 51. a turntable; 52. a cable; 53. a lever; 54. a first link; 55. a second link; 56. a third link; 57. a fourth link; 58. a tension spring; 6. a suction cup; 61. a tray body; 62. a rubber sheet; 63. a piston; 64. a piston rod; 65. a guide sleeve; 66. buffering sealing washer.
Detailed Description
The present application is described in further detail below with reference to figures 1-11.
The embodiment of the application discloses a folding table convenient to fix.
Example 1
Referring to fig. 1 and 2, a folding table convenient to fix comprises table legs 2 and a table top plate 1, wherein the table top plate 1 is rotatably installed on the table legs 2, a limiting mechanism 3 for limiting the table top plate 1 to rotate is installed between the table legs 2 and the table top plate 1, the table top plate 1 is folded when being rotated to be vertical, the table top plate 1 is in a use state when being rotated to be horizontal, the table top plate 1 is connected with the limiting mechanism 3 when being rotated to be horizontal, and the limiting mechanism 3 fixes the table top plate 1 in the horizontal state. The lower extreme of table foot 2 is installed the sucking disc 6, and the opening of sucking disc 6 is down, installs link gear 5 on the table foot 2, and link gear 5's one end is connected sucking disc 6, and link gear 5's the other end is connected desktop board 1. In the process that the desktop plate 1 is turned over from a folded state to a use state, the desktop plate 1 rotates to drive the linkage mechanism 5 to move, the linkage mechanism 5 moves to drive the sucker 6 to descend, the sucker 6 is tightly pressed on the floor, the linkage mechanism 5 continues to move along with the continuous turning of the desktop plate 1, so that the vacuum degree of the sucker 6 is increased, the sucker 6 is firmly fixed on the floor by the external atmospheric pressure, and the folding table is fixed; on the contrary, in the process that the desktop plate 1 is turned over from the using state to the folding state, the linkage mechanism 5 moves to reduce the vacuum degree of the sucker 6, and when the vacuum degree of the sucker 6 is reduced to 0, the linkage mechanism 5 continues to move to drive the sucker 6 to ascend and separate from the floor, so that the unlocking of the folding table is realized.
Referring to fig. 2, 3 and 4, the table leg 2 comprises two support legs, the linkage mechanisms 5 are provided with two sets, the two sets of linkage mechanisms 5 are respectively installed on the two support legs, the two support legs are fixedly connected through a baffle plate, the baffle plate is vertically arranged, two ends of the baffle plate are respectively and fixedly connected with the middle parts of the two support legs, and the two support legs are mutually symmetrical. The support leg comprises a vertical support rod and a horizontal support rod, the lower end of the vertical support rod is fixed in the middle of the horizontal support rod, the vertical support rod and the horizontal support rod are perpendicular to each other, the vertical support rod is hollow, two ends of the vertical support rod are open, a long groove is formed in the horizontal support rod along the length direction of the horizontal support rod, the opening of the long groove faces the ground, two ends of the long groove are closed, a plurality of horizontal cross beams are arranged in the long groove and are arranged at intervals along the length direction of the long groove, two ends of each cross beam are respectively fixed on two sides of the long groove, and the long groove is communicated with a cavity in the vertical support rod. The two ends of the elongated slot are respectively provided with universal wheels which protrude out of the opening of the elongated slot, and the two universal wheels are symmetrically arranged relative to the vertical supporting rod. Two suckers 6 are respectively installed at two ends of each long groove, the two suckers 6 are symmetrically arranged relative to the vertical supporting rod, the two suckers 6 are arranged between the two universal wheels, when the desktop plate 1 is in a vertical state, the suckers 6 are all retracted in the long grooves, and when the desktop plate 1 is in a horizontal state, the lower portions of the suckers 6 extend out of the openings of the long grooves and are pressed on a floor.
Referring to fig. 5, the limiting mechanism 3 includes a clamping pin 31, a connecting shaft 33, an elastic member 34, a limiting rod 32 and a handle 35, the connecting shaft 33 is horizontally disposed, two ends of the connecting shaft 33 are respectively rotatably connected to the upper ends of two vertical support rods, the limiting rod 32 is vertically fixed on the connecting shaft 33, the limiting rod 32 is provided with a clamping groove, the clamping groove faces one side of the tabletop plate 1 in a vertical state, the clamping pin 31 is horizontally fixed at the lower portion of the tabletop plate 1, and the clamping pin 31 is clamped into the clamping groove when the tabletop plate 1 is rotated to a horizontal state. The elastic piece 34 is a torsion spring, the elastic piece 34 is sleeved on the connecting shaft 33, two ends of the elastic piece 34 are respectively and fixedly connected with the limiting rod 32 and the table leg 2, the handle 35 is fixedly connected with the connecting shaft 33, and the connecting shaft 33 is driven to rotate by the handle 35. The upper end surface of the limiting rod 32 is an inclined surface, and the end of the inclined surface, which is located on one side of the clamping groove, is a low end. In the process that the desktop plate 1 rotates from the vertical state to the horizontal state, the bayonet lock 31 contacts with the upper end surface of the limiting rod 32 firstly, then the limiting rod 32 is pushed to rotate, the elastic piece 34 generates elasticity, the bayonet lock 31 moves along one side of the limiting rod 32 along with the continuous rotation of the desktop plate 1, when the bayonet lock 31 moves to the clamping groove, the pushing force of the bayonet lock 31 on the limiting rod 32 disappears, the limiting rod 32 returns to the original position under the elastic action of the elastic piece 34, the bayonet lock 31 enters the clamping groove, the desktop plate 1 is locked, and the desktop plate 1 is fixed and kept in the horizontal state of the desktop plate 1. When the table top board 1 needs to be folded, one hand is pulled to keep the table top board 1 not to fall off, the other hand rotates the connecting shaft 33 through the handle 35, so that the clamping groove is separated from the clamping pin 31, the table top board 1 is unlocked, and then the table top board 1 is rotated to enable the table top board 1 to be rotated to be in a vertical state from a horizontal state, and the folding of the table top board 1 is completed.
Referring to fig. 6, the suction cup 6 includes a cup body 61 and a sealing member, the sealing member is installed in the cup body 61, the cup body 61 is cylindrical, the lower end of the cup body 61 is open, that is, the opening of the suction cup 6, and a connecting hole is formed in the top of the cup body 61 and used for the linkage mechanism 5 to pass through. The sealing member is for having elastic sheet rubber 62, the sealing member is circularly, the diameter of sealing member equals with disk body 61's internal diameter, the sealing member level sets up, the edge of sealing member and disk body 61's inner wall fixed connection and formation are sealed, the sealing member separates into absorption chamber and extension chamber with disk body 61's inner chamber, the below of sealing member and the opening intercommunication with sucking disc 6 are located in the absorption chamber, the top of sealing member is located in the extension chamber, extension chamber and connecting hole intercommunication, the connecting hole keeps the atmospheric pressure in extension chamber the same with external atmospheric pressure, it is used for making sucking disc 6 produce vacuum and adsorbs the floor to adsorb the chamber, the extension chamber provides the space of sealing member expansion. The linkage mechanism 5 is respectively connected with the disc body 61 and the sealing piece, the disc body 61 can move downwards under the driving of the linkage mechanism 5, and the sealing piece can expand upwards under the pulling of the linkage mechanism 5, so that the size of the adsorption cavity is changed, and the sealing piece can automatically recover under the action of self elasticity. Sealing the opening of the suction cup 6, and then pulling the sealing element upwards to enlarge the volume of the adsorption cavity, so as to increase the vacuum degree of the adsorption cavity and ensure that the suction cup 6 is firmly fixed on the floor; the tension disappears, the vacuum degree of the absorption cavity is reduced to 0 after the sealing element is recovered, and the suction disc 6 is separated from the floor.
Referring to fig. 2 and 6, the linkage mechanism 5 includes a lever 53 and a connecting member, the lever 53 is installed in the long slot, the middle of the lever 53 is hinged to the table leg 2 through a hinge shaft, two ends of the hinge shaft are respectively connected to the side walls of the two sides of the long slot, a return spring is sleeved outside the hinge shaft, the return spring is a torsion spring, two ends of the return spring are respectively and fixedly connected to the lever 53 and the side wall of the long slot, one end of the lever 53 is arranged above the disc body 61 and is hinged to the disc body 61, the other end of the lever 53 is connected to the connecting member, and after the acting force applied to the lever 53 by the connecting member disappears, the lever 53 drives the disc body 61 to automatically return under the acting force of the return spring. The connecting piece includes cable 52, and cable 52 can be crooked, conveniently arranges, and cable 52 includes sheath and steel wire, and the sheath cover is established outside the steel wire, and the steel wire can slide along the sheath, and the steel wire can rotate in the sheath. The guy 52 is arranged along the inner cavity of the vertical support rod and the elongated slot of the horizontal support rod, the sheath of the guy 52 is fixed on the inner wall of the vertical support rod and the beam of the horizontal support rod, and the guy 52 arranged in the elongated slot is arranged above the beam. The long groove is internally provided with a plurality of pulleys for turning the steel wire, the pulleys are distributed at the positions where the steel wire needs to be turned, the pulleys are rotatably connected with the side wall of the long groove, one end of the steel wire is provided with two branches, one branch crosses over the pulley above the lever 53 and then is fixedly connected with one end of the lever 53 far away from the sucker 6, the other branch crosses over the pulley above the sucker 6 and then passes through the connecting hole and is fixedly connected with the middle part of the sealing element, one end of the steel wire far away from the branch is surrounded and fixedly connected with a turntable 51, the turntable 51 is a winding disc, the turntable 51 rotates along with the rotation of the table panel 1, and the steel wire is wound or lengthened along with the rotation of the turntable 51, so that the sucker 6 is driven. The connecting piece transmits the rotation power of the desktop plate 1 to the lever 53 and the sealing piece, the lever 53 changes the direction of the power transmitted by the connecting piece to the disk body 61, so that the stress direction of the disk body 61 is opposite to the stress direction of the sealing piece, the motion direction of the disk body 61 is opposite to the motion direction of the sealing piece, and the functions of driving the sucker 6 to lift and changing the vacuum degree of the adsorption cavity are realized.
Referring to fig. 2 and 3, a turntable 51 is provided in the inner cavity of the vertical support rod, and a rack 4 is connected to the turntable 51. The rack 4 comprises a flat plate, a steel pipe and two groups of pulling and connecting pieces, wherein the flat plate is fixed on the steel pipe, two ends of the steel pipe are respectively and rotatably connected with two vertical supporting rods, the end heads of the steel pipe extend into the vertical supporting rods, and the turntable 51 is fixed at one end of the steel pipe. Two sets of draw-on pieces are respectively arranged at two ends of the flat plate and comprise steel bars and springs, one ends of the steel bars are hinged with one side of the flat plate far away from the steel pipe, the other ends of the steel bars are rotatably connected with one ends of the springs, and the other ends of the springs are rotatably connected with the lower surface of the table top plate 1. The desktop plate 1 drives the flat plate to rotate through the springs and the steel bars, so that the using state of the flat plate and the using state of the desktop plate 1 are kept synchronous, the operation is convenient, the springs can enable the transmission of power to be smoother, and the rotation of the desktop plate 1 is prevented from being clamped by the pulling connecting piece.
The implementation principle of the embodiment 1 is as follows: in the process of turning the desktop plate 1 from the folded state to the use state, the desktop plate 1 rotates to drive the object frame 4 to rotate, the object frame 4 rotates to drive the rotating disc 51 to rotate, and the rotating disc 51 rotates to roll up the steel wires of the stay cables 52, so that the steel wires of the stay cables 52 generate tension. One branch of the steel wire of the inhaul cable 52 drives one end of the lever 53 to move upwards, the other end of the lever 53 drives the disc body 61 to move downwards, the open end of the disc body 61 is pressed on the floor and sealed with the floor, the adsorption cavity becomes a closed space, and meanwhile, the other branch of the steel wire of the inhaul cable 52 pulls the rubber sheet 62 to expand upwards, so that the adsorption cavity becomes large. Form the sealed back between absorption chamber and the floor, along with the continuation rotation of desktop board 1, a branch of the steel wire of cable 52 continues to apply decurrent pressure to disk body 61 through lever 53, table foot 2 can be by jack-up so that the steel wire of cable 52 can continue to be pulled this moment, the universal wheel leaves the floor, and the steel wire of cable 52 also continues to pull the sealing member and makes absorption chamber continue the grow, the atmospheric pressure in the absorption chamber diminishes, the vacuum grow in the absorption chamber, external atmospheric pressure compresses tightly sucking disc 6 on the floor, thereby fixed folding table, folding table locking. On the contrary, in the process of turning the table top board 1 from the use state to the folding state, the rotation direction of the table top board 1 is opposite, the rotating disc 51 is driven to rotate reversely, the steel wire of the connecting cable 52 is loosened, the rubber sheet 62 returns to the original position under the self elastic action, the size of the adsorption cavity is recovered, the vacuum degree of the adsorption cavity is reduced to 0, the tray body 61 is separated from the floor, the folding table is unlocked, and the folding table can be pushed. The folding table is unlocked and locked by being driven by the turnover table panel 1, no additional operation is needed, and the operation is convenient and quick.
Example 2
Referring to fig. 7, the difference between this embodiment and embodiment 1 is that the sealing element is changed from a rubber sheet 62 to a piston 63, the piston 63 is slidably connected to the inner wall of the disc body 61 and forms a seal with the inner wall of the disc body 61, a rod of the piston 63 is disposed at the upper end of the piston 63, a guide cylinder is slidably sleeved outside the rod of the piston 63 and is fixedly connected to the disc body 61 through a fixing rod, and the guide cylinder can enable the movement of the piston 63 to keep a vertical state and prevent the piston 63 from being blocked. The inhaul cable 52 is fixedly connected with the upper end of the piston 63 rod, one end of the inhaul cable 52, which is connected with the piston 63 rod, is vertically arranged and coaxial with the piston 63 rod, and the piston 63 can be vertically moved upwards by pulling the inhaul cable 52 through pulling the piston 63, so that the volume of the adsorption cavity is enlarged; after the pulling force of the pulling cable 52 disappears, the piston 63 automatically returns to the original position under the action of the air pressure.
The implementation principle of the embodiment 2 is as follows: the piston 63 is pulled by the inhaul cable 52 to move upwards, the volume of the adsorption cavity is enlarged, and after the adsorption cavity is sealed, the vacuum degree of the adsorption cavity can be improved by the upward movement of the piston 63, so that the sucking disc 6 is pressed on the floor. In addition, the piston 63 has a longer service life than the rubber sheet 62, and the piston 63 is more easily replaced than the rubber sheet 62.
Example 3
Referring to fig. 8, the difference between this embodiment and embodiment 1 is that the pull cable 52 is replaced by a multi-link composed of a first link 54, a second link 55, a third link 56 and a fourth link 57, the first link 54 is movably installed in the vertical support rod, the second link 55, the third link 56 and the fourth link 57 are installed in the elongated slot, the upper end of the first link 54 is hinged to the edge of the turntable 51, the lower end of the first link 54 is hinged to one end of the second link 55, the other end of the second link 55 is hinged to one end of the third link 56, the upper end of the fourth link 57 is fixed with a sliding sleeve, the sliding sleeve is slidably sleeved on one end of the third link 56 far away from the second link 55, and the lower end of the fourth link 57 passes through the connection hole and is connected with the sealing member. The middle part of the second connecting rod 55 and the middle part of the third connecting rod 56 are respectively hinged on the table legs 2 through rotating shafts, and one end of the lever 53 far away from the disc body 61 is hinged on the lower end of the first connecting rod 54.
The implementation principle of the embodiment 3 is as follows: the power is transmitted to the sealing element through the first connecting rod 54, the second connecting rod 55, the third connecting rod 56 and the fourth connecting rod 57, the direction of the acting force applied to the sealing element is the same as that of the acting force applied to the first connecting rod 54, and the direction of the acting force applied to the disc body 61 is opposite to that of the acting force applied to the first connecting rod 54, so that the function of driving the sucking disc 6 to lift and change the size of the sucking cavity is realized; the acting force that can be borne by the first link 54, the second link 55, the third link 56 and the fourth link 57 is large, and when the linkage mechanism 5 is used as a main supporting stress structure, the service life of the linkage mechanism 5 can be prolonged.
Example 4
Referring to fig. 9, the present embodiment is different from embodiment 1 in that a stretchable cushion seal 66 is installed on a lower end surface of the disc body 61, the cushion seal 66 is made of rubber, the cushion seal 66 has elasticity and can be compressed and automatically restored after pressure disappears, and the cushion seal 66 facilitates sealing between the opening of the suction cup 6 and the floor.
The implementation principle of the embodiment 4 is as follows: after buffering sealing washer 66 contacts the floor, along with the continuation rotation of desktop board 1, buffering sealing washer 66 can continue to be compressed for disk body 61 can continue toward descending, thereby avoids table foot 2 to be pushed up from the floor by sucking disc 6, continuously keeps table foot 2 as the main stress structure that supports of folding table, and sucking disc 6 and link gear 5 only bear the power of partly holding, prolongs sucking disc 6 and link gear 5's life.
Example 5
Referring to fig. 10, the present embodiment is different from embodiment 1 in that a tension spring 58 is disposed between the lever 53 and the connecting member, the wire of the cable 52 is connected to the lever 53 through the tension spring 58, and both ends of the tension spring 58 are fixedly connected to one end of the wire of the cable 52 and one end of the lever 53, respectively.
The implementation principle of the embodiment 5 is as follows: after the sucking disc 6 forms the seal with the floor contact to the floor, the floor can prevent that disk body 61 from continuing to descend, and along with the continuation pulling of cable 52 this moment, tension spring 58 continues to be stretched for the sheet rubber 62 can continue to be stretched, enlarges the absorption chamber, increases the vacuum degree in absorption chamber, makes sucking disc 6 absorption floor more firm. Meanwhile, the table legs 2 can be prevented from being lifted off the floor by the suckers 6, the table legs 2 are continuously kept as a main supporting stress structure of the folding table, the suckers 6 and the linkage mechanisms 5 only bear a small part of supporting force, and the service lives of the suckers 6 and the linkage mechanisms 5 are prolonged.
Example 6
Referring to fig. 11, the present embodiment is different from embodiment 1 in that a stretchable cushion seal 66 is installed on a lower end surface of the disc body 61, the cushion seal 66 is made of rubber, the cushion seal 66 has elasticity and can be compressed and automatically restored after pressure disappears, and the cushion seal 66 facilitates sealing between the opening of the suction cup 6 and the floor. A tension spring 58 is arranged between the lever 53 and the connecting piece, the steel wire of the inhaul cable 52 is connected with the lever 53 through the tension spring 58, and two ends of the tension spring 58 are respectively and fixedly connected with one end of the steel wire of the inhaul cable 52 and one end of the lever 53.
The implementation principle of the embodiment 6 is as follows: after buffering sealing washer 66 contacts the floor, along with the continuation rotation of desktop board 1, buffering sealing washer 66 can continue to be compressed, make disk body 61 can continue toward descending, tension spring 58 is stretched simultaneously, make the steel wire of cable 52 can continue pulling sheet rubber 62, thereby avoid table foot 2 to be pushed up from the floor by sucking disc 6, continuously keep table foot 2 as the main stress structure that supports of folding table, sucking disc 6 and link gear 5 only bear the fractional holding power, the life of extension sucking disc 6 and link gear 5.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The utility model provides a folding table convenient to it is fixed which characterized in that: including table foot (2) and desktop board (1), desktop board (1) rotate install in on table foot (2), install the restriction between table foot (2) and desktop board (1) pivoted stop gear (3), sucking disc (6) are installed to the lower extreme of table foot (2), install link gear (5) on table foot (2), the one end of link gear (5) is connected sucking disc (6), the other end of link gear (5) is connected desktop board (1), desktop board (1) rotates and drives link gear (5) motion, link gear (5) drive sucking disc (6) go up and down and can change the vacuum of sucking disc (6).
2. A folding table for facilitating mounting as claimed in claim 1 wherein: sucking disc (6) include disk body (61) and sealing member, the opening of disk body (61) is down, the edge connection of sealing member the inner wall of disk body (61) forms sealedly, the sealing member can up-motion or expansion, the sealing member will the inner chamber of disk body (61) is separated into and is adsorbed chamber and expansion chamber, it locates to adsorb the chamber the below of sealing member, the expansion chamber is located the top of sealing member, the top of disk body (61) is equipped with the intercommunication the connecting hole in expansion chamber, link gear (5) are connected respectively disk body (61) and sealing member, link gear (5) can drive the sealing member and change the size in absorption chamber.
3. A folding table for facilitating mounting as claimed in claim 2 wherein: the linkage mechanism (5) comprises a lever (53) and a connecting piece, the middle of the lever (53) is hinged to the table leg (2) through a hinge shaft, one end of the lever (53) is arranged above the disc body (61) and hinged to the disc body (61), one end of the connecting piece is connected with the sealing piece and one end, far away from the disc body (61), of the lever (53) respectively, the other end of the connecting piece is connected with a turntable (51), and the turntable (51) rotates along with the rotation of the table top plate (1).
4. A folding table for facilitating mounting as claimed in claim 3 wherein: the connecting piece includes cable (52), the sheath of cable (52) is fixed in table foot (2), the one end of cable (52) is equipped with two branches, one of them branch is located the top of lever (53) and fixed connection lever (53), another branch passes connecting hole and fixed connection the sealing member, cable (52) are kept away from the one end of branch encircles and fixed connection carousel (51).
5. A folding table for facilitating mounting as claimed in claim 3 wherein: the connecting piece comprises a first connecting rod (54), a second connecting rod (55), a third connecting rod (56) and a fourth connecting rod (57), the upper end of the first connecting rod (54) is hinged to the edge of the rotating disc (51), the lower end of the first connecting rod (54) is hinged to one end of the second connecting rod (55), the other end of the second connecting rod (55) is hinged to one end of the third connecting rod (56), the other end of the third connecting rod (56) is connected with the upper end of the fourth connecting rod (57), the lower end of the fourth connecting rod (57) penetrates through the connecting hole and is connected with a sealing piece, the middle part of the second connecting rod (55) and the middle part of the third connecting rod (56) are hinged to the table foot (2) through rotating shafts respectively, and one end, far away from the disc body (61), of the lever (53) is hinged to the lower end of the first connecting rod (54).
6. A folding table for facilitating mounting as claimed in claim 3 wherein: the lower end face of the tray body (61) is provided with a telescopic buffer sealing ring (66).
7. A folding table for facilitating mounting as claimed in claim 3 wherein: and a tension spring (58) is arranged between the lever (53) and the connecting piece, and the connecting piece is connected with the lever (53) through the tension spring (58).
8. A folding table for facilitating mounting as claimed in claim 3 wherein: be equipped with reset spring between lever (53) and table foot (2), reset spring's both ends are fixed connection respectively lever (53) and table foot (2).
9. A folding table for facilitating mounting as claimed in claim 3 wherein: the rotary table is characterized in that the rotary table (51) is connected with an object frame (4), the object frame (4) is rotatably connected with the table legs (2), the rotary table (51) is fixed at one end of the object frame (4), the object frame (4) is connected with the table top plate (1) through a pull-connecting piece, and two ends of the pull-connecting piece are respectively connected with the object frame (4) and the table top plate (1).
10. A folding table for facilitating mounting as claimed in claim 1 wherein: stop gear (3) include bayonet lock (31), connecting axle (33), elastic component (34), gag lever post (32) and handle (35), bayonet lock (31) are fixed in on desktop board (1), connecting axle (33) rotate to be connected table foot (2), gag lever post (32) are fixed in on connecting axle (33), be equipped with the draw-in groove on gag lever post (32), bayonet lock (31) can block in the draw-in groove, the both ends difference fixed connection of elastic component (34) gag lever post (32) and table foot (2), handle (35) fixed connection connecting axle (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111262638.9A CN113974307B (en) | 2021-10-28 | 2021-10-28 | Folding table convenient to it is fixed |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111262638.9A CN113974307B (en) | 2021-10-28 | 2021-10-28 | Folding table convenient to it is fixed |
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| CN113974307A true CN113974307A (en) | 2022-01-28 |
| CN113974307B CN113974307B (en) | 2023-05-05 |
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| CN202111262638.9A Active CN113974307B (en) | 2021-10-28 | 2021-10-28 | Folding table convenient to it is fixed |
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| Publication number | Publication date |
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| CN113974307B (en) | 2023-05-05 |
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Address after: Room 1301-15, No. 3, Lingshan East Road, Tianhe District, Guangzhou, Guangdong 510000 Patentee after: Guangzhou Shenghe Furniture Co.,Ltd. Address before: 510665 No.3, No.82, Dalingshan Industrial Zone, Lingshan Road, Zhuji street, Tianhe District, Guangzhou City, Guangdong Province Patentee before: Guangzhou Shenghe Furniture Co.,Ltd. |
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