阅读说明：本技术 一种伸缩式桌子 (Telescopic table ) 是由 吴耀华 于 2020-04-17 设计创作，主要内容包括：本发明提供了一种伸缩式桌子,包括基座以及设置于基座上的第一桌板、第二桌板和第三桌板,第一桌板和第三桌板与基座滑动连接,基座上还设置有对开装置以及与对开装置相互配合的升降装置,第一桌板和第三桌板与所述对开装置相连接,第二桌板与升降装置相连接,对开装置用于带动第一桌板和第三桌板向所述基座的纵向对称线处靠近或远离；当第一桌板和第三桌板分别相对于所述基座的两端平移伸出时,第二桌板向上升起并位于所述第一桌板和第三桌板之间,且第一桌板、第二桌板和第三桌板位于同一水平面上；当所述第一桌板和所述第三桌板向所述基座的纵向对称线处移动时,所述第二桌板向下收缩；该伸缩式桌子具有结构合理,使用便捷的的优点。(The invention provides a telescopic table which comprises a base, a first table plate, a second table plate and a third table plate, wherein the first table plate, the second table plate and the third table plate are arranged on the base, the first table plate and the third table plate are connected with the base in a sliding manner, the base is also provided with a split device and a lifting device matched with the split device, the first table plate and the third table plate are connected with the split device, the second table plate is connected with the lifting device, and the split device is used for driving the first table plate and the third table plate to be close to or far away from a longitudinal symmetry line of the base; when the first table board and the third table board respectively extend out in a translation mode relative to two ends of the base, the second table board rises upwards and is located between the first table board and the third table board, and the first table board, the second table board and the third table board are located on the same horizontal plane; when the first table and the third table move to the longitudinal symmetry line of the base, the second table contracts downwards; the telescopic table has the advantages of reasonable structure and convenience in use.)

1. The utility model provides a telescopic desk, includes the base and sets up first table, second table and third table on the base, first table, second table and third table are used for forming the desktop, and first table and third table and base sliding connection, its characterized in that: the base is further provided with a split device and a lifting device matched with the split device, the first table plate and the third table plate are connected with the split device, the second table plate is connected with the lifting device, and the split device is used for driving the first table plate and the third table plate to be close to or far away from a longitudinal symmetrical line of the base; when the first table board and the third table board respectively extend out in a translation mode relative to two ends of the base, the second table board rises upwards and is located between the first table board and the third table board, and the first table board, the second table board and the third table board are located on the same horizontal plane; when the first table and the third table move to the longitudinal symmetry line of the base, the second table contracts downwards.

2. The retractable table as in claim 1, wherein: run from opposite directions the device and include gear, spacing sliding sleeve, first rack and second rack, the gear with spacing sliding sleeve rotates to be connected, first rack and second rack and spacing sliding sleeve sliding connection, the flank of tooth of first rack and second rack is relative, just first rack and second rack all with gear intermeshing, the tip and a table fixed connection of first rack, the tip of second rack with third table fixed connection.

3. The retractable table as in claim 2, wherein: the split device further comprises a driving motor, the driving motor is fixed on the limiting sliding sleeve, and the driving motor is in transmission connection with the gear.

4. The retractable table as in claim 3, wherein: the split device further comprises a controller, a first proximity switch, a second proximity switch, a first detection block and a second detection block, the controller is fixed on the base, the first proximity switch and the second proximity switch are respectively fixed on two sides of the limiting sliding sleeve, the first detection block is fixed at one end of the second rack, the second detection block is far away from the second detection block and is fixed with the second rack, and the first proximity switch, the second proximity switch and the driving motor are respectively electrically connected with the controller; when the split device extends out of the first table plate and the third table plate, the controller stops driving the motor after receiving feedback that the first detection block is close to the first proximity switch; or when the folio device retracts into the first table plate and the third table plate, the controller stops driving the motor after receiving feedback that the second detection block approaches the second proximity switch.

5. The retractable table as in claim 2, wherein: the lifting device comprises a first lifting joint and a second lifting joint, the first lifting joint comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is rotatably connected with one end of the second connecting rod, and the other end of the first connecting rod is rotatably connected with the second table plate and the base respectively; the second lifting joint comprises a third connecting rod and a fourth connecting rod, one end of the third connecting rod is rotatably connected with one end of the fourth connecting rod, and the other end of the third connecting rod is rotatably connected with the second table plate and the base respectively; the second lifting joint and the first lifting joint are respectively positioned at two ends of the second table plate, and the first lifting joint and the second lifting joint are in inverted V shapes and are symmetrical to each other.

6. The retractable table as in claim 5, wherein: the lifting device further comprises a fifth connecting rod, a sixth connecting rod, a first sliding block, a second sliding block, a first sliding groove and a second sliding groove, the first sliding groove and the second sliding groove are formed in the length direction of the first rack and the second rack, the first sliding block and the second sliding block are respectively in sliding connection with the first sliding groove and the second sliding groove, one end of the fifth connecting rod is rotatably connected with the first sliding block, the other end of the fifth connecting rod is rotatably connected with the second connecting rod, one end of the sixth connecting rod is rotatably connected with the second sliding block, and the other end of the sixth connecting rod is rotatably connected with the third connecting rod.

7. The retractable table as in claim 6, wherein: when the first table board, the second table board and the third table board are positioned on the same horizontal plane, one end of the first sliding groove and one end of the second sliding groove are respectively abutted against the first sliding block and the second sliding block; when the second table plate is located below the first table plate and the third table plate and the end portions of the first table plate and the third table plate are close to each other, the other ends of the first sliding groove and the second sliding groove are respectively abutted to the first sliding block and the second sliding block.

8. The telescopic table according to any one of claims 2 to 5, wherein: the lifting device further comprises a telescopic rod, one end of the telescopic rod is rotatably connected with the joint of the first connecting rod and the second connecting rod, the other end of the telescopic rod is rotatably connected with the joint of the third connecting rod and the fourth connecting rod, and the telescopic rod is electrically connected with the controller.

9. The retractable table as in claim 1, wherein: and supporting legs are further arranged at two sides of the base respectively and are fixed on the first table plate and the third table plate respectively and far away from the end parts of the longitudinal symmetry lines.

10. The retractable table as in claim 9, wherein: the lower end of the supporting leg is also provided with a roller wheel, and the roller wheel is connected with the supporting leg.

Technical Field

The invention belongs to the technical field of furniture, and particularly relates to a telescopic table.

Background

As daily furniture, the table is one of the indispensable furniture in modern daily household life, workplaces and entertainment and leisure places. The table is used as furniture with relatively fixed placement, the size of the table top is generally fixed, and when the table is used at home, the table with a proper size is generally selected according to the number of people or the size of a field. When the use area is small, people often only choose small-sized tables, but when the number of people is large, the tables are obviously not suitable. In order to make the desk more flexible when in use, stretchable desks appear in the market at present, and the stretchable desk is structurally characterized in that movable plates are additionally arranged at two ends or four sides of a desktop, and the size of the desktop is adjusted by unfolding or folding the movable plates. However, in practical use, the movable plates are arranged at the edge of the table, which easily affects the movement of the legs of the user, and the movable plates are positioned at the edge of the table when folded, which also affects the beauty of the table. Or the extensible auxiliary table plate is arranged in or below the main table top, when the use area of the table needs to be enlarged, the auxiliary table plate only needs to be extended out of or below the main table top, and the table adopting the technical scheme has the problems of inconsistent height or inconsistent width of the table top, so that the convenience and the attractiveness of the table are influenced; a space-saving conference table as disclosed in utility model patent application No. 201621464618.4; also disclosed in the invention patent application No. 201810525630.0 is a domestic retractable table.

Disclosure of Invention

In view of this, the invention aims to provide a telescopic table which is reasonable in structure and convenient and fast to use.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

a telescopic table comprises a base, a first table plate, a second table plate and a third table plate, wherein the first table plate, the second table plate and the third table plate are arranged on the base and used for forming a table top, the first table plate and the third table plate are connected with the base in a sliding mode, the base is further provided with a split device and a lifting device matched with the split device, the first table plate and the third table plate are connected with the split device, the second table plate is connected with the lifting device, and the split device is used for driving the first table plate and the third table plate to be close to or far away from a longitudinal symmetrical line of the base; when the first table board and the third table board respectively extend out in a translation mode relative to two ends of the base, the second table board rises upwards and is located between the first table board and the third table board, and the first table board, the second table board and the third table board are located on the same horizontal plane; when the first table and the third table move to the longitudinal symmetry line of the base, the second table contracts downwards.

As a further improvement to the telescopic table, the folio device comprises a gear, a limiting sliding sleeve, a first rack and a second rack, the gear is rotatably connected with the limiting sliding sleeve, the first rack and the second rack are slidably connected with the limiting sliding sleeve, tooth surfaces of the first rack and the second rack are opposite, the first rack and the second rack are meshed with the gear, the end of the first rack is fixedly connected with a table board, and the end of the second rack is fixedly connected with a third table board.

As a further improvement on the telescopic table, the split device further comprises a driving motor, the driving motor is fixed on the limiting sliding sleeve, and the driving motor is in transmission connection with the gear.

As a further improvement of the telescopic table, the folio device further comprises a controller, a first proximity switch, a second proximity switch, a first detection block and a second detection block, wherein the controller is fixed on the base, the first proximity switch and the second proximity switch are respectively fixed on two sides of the limiting sliding sleeve, the first detection block is fixed at one end of the second rack, the second detection block is far away from the second detection block and is fixed with the second rack, and the first proximity switch, the second proximity switch and the driving motor are respectively electrically connected with the controller; when the split device extends out of the first table plate and the third table plate, the controller stops driving the motor after receiving feedback that the first detection block is close to the first proximity switch; or when the folio device retracts into the first table plate and the third table plate, the controller stops driving the motor after receiving feedback that the second detection block approaches the second proximity switch.

As a further improvement of the telescopic table, the lifting device comprises a first lifting joint and a second lifting joint, the first lifting joint comprises a first connecting rod and a second connecting rod, one end of the first connecting rod and one end of the second connecting rod are rotatably connected, and the other end of the first connecting rod and the other end of the second connecting rod are respectively rotatably connected with the second table board and the base; the second lifting joint comprises a third connecting rod and a fourth connecting rod, one end of the third connecting rod is rotatably connected with one end of the fourth connecting rod, and the other end of the third connecting rod is rotatably connected with the second table plate and the base respectively; the second lifting joint and the first lifting joint are respectively positioned at two ends of the second table plate, and the first lifting joint and the second lifting joint are in inverted V shapes and are symmetrical to each other.

As a further improvement of the telescopic table, the lifting device further comprises a fifth connecting rod, a sixth connecting rod, a first sliding block, a second sliding block, a first sliding groove and a second sliding groove which are formed along the length direction of the first rack and the second rack, the first sliding block and the second sliding block are respectively in sliding connection with the first sliding groove and the second sliding groove, one end of the fifth connecting rod is rotatably connected with the first sliding block, the other end of the fifth connecting rod is rotatably connected with the second connecting rod, one end of the sixth connecting rod is rotatably connected with the second sliding block, and the other end of the sixth connecting rod is rotatably connected with the third connecting rod.

As a further improvement of the telescopic table, when the first table plate, the second table plate and the third table plate are positioned on the same horizontal plane, one end of the first sliding groove and one end of the second sliding groove are respectively abutted against the first sliding block and the second sliding block; when the second table plate is located below the first table plate and the third table plate and the end portions of the first table plate and the third table plate are close to each other, the other ends of the first sliding groove and the second sliding groove are respectively abutted to the first sliding block and the second sliding block.

As a further improvement of the telescopic table, the lifting device further comprises a telescopic rod, one end of the telescopic rod is rotatably connected with the joint of the first connecting rod and the second connecting rod, the other end of the telescopic rod is rotatably connected with the joint of the third connecting rod and the fourth connecting rod, and the telescopic rod is electrically connected with the controller.

As a further improvement of the telescopic table, supporting legs are further arranged on two sides of the base respectively and are fixed to the end portions, far away from the longitudinal symmetry line, of the first table board and the end portions, far away from the longitudinal symmetry line, of the third table board respectively.

As a further improvement of the telescopic table, the lower end part of the supporting leg is also provided with a roller which is connected with the supporting leg.

The invention has the following beneficial effects: the first table plate, the second table plate, the third table plate, the split device and the lifting device which are matched with the first table plate, the second table plate and the third table plate are respectively arranged; when the first table board and the third table board are driven to be opened by the oppositely opening device, the second table board is driven to be lifted by the lifting device and forms a table top together with the first table board and the third table board, namely the use area of the table is increased; after the first table and the third table are driven to move relatively by the oppositely opening device, the second table is driven to retract by the lifting device and is located below the first table and the third table, at the moment, the first table and the third table form a table top, the using area of the table is reduced, and therefore the table can flexibly adapt to different using occasions and the using convenience of the table is improved.

Drawings

The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments of the invention, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intended to be drawn to scale in actual dimensions, emphasis instead being placed upon illustrating the principles of the invention.

FIG. 1 is a schematic view of a first embodiment of a retractable table shown in an extended position;

FIG. 2 is a schematic view of a first embodiment of a retractable table shown in a retracted position;

FIG. 3 is a schematic view of a second embodiment of a retractable table shown in an extended position;

FIG. 4 is a schematic view of a second embodiment of a retractable table shown in a retracted position;

FIG. 5 is a schematic view of a third embodiment of a retractable table shown in an extended position;

fig. 6 is a schematic view showing a retracted state of the third embodiment of the telescopic table according to the present invention.

Detailed Description

The present invention will be described in further detail with reference to the drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the illustrated embodiments are not intended to limit the present invention, and in the present embodiments, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention; in the present embodiment, if the connection or fixing manner between the components is not specifically described, the connection or fixing manner may be a bolt fixing manner, a welding fixing manner, or a pin 5 fixing manner, which is commonly used in the prior art, and therefore, detailed description thereof is omitted in this embodiment.

As shown in fig. 1 to 6, the present embodiment provides a retractable table, which includes a base 1, and a first table 2, a second table 3, and a third table 4 disposed on the base 1; wherein, first table 2, second table 3 and third table 4 are used for forming the desktop, and first table 2 and third table 4 form sliding connection through slide rail 5 respectively with base 1, and first table 2 and third table 4 can be for base 1 horizontal migration promptly. The base 1 is further provided with a split device 6 and a lifting device 7 matched with the split device 6, the first table board 2 and the third table board 4 are connected with the split device 6, the second table board 3 is connected with the lifting device 7, and the split device 6 is used for driving the first table board 2 and the third table board 4 to be close to or far away from the longitudinal symmetry line of the base 1 at the same time; when the first table board 2 and the third table board 4 respectively extend (extend) in a translational manner relative to two ends of the base 1, the second table board 3 is driven by the lifting device 7 to rise upwards and be located between the first table board 2 and the third table board 4, and the first table board 2, the second table board 3 and the third table board 4 are located on the same horizontal plane, which is a matter of course that the widths of the second table board 3 and the first table board 2 and the third table board 4 are the same in the present embodiment; when the first table 2 and the third table 4 move (shorten) to the longitudinal symmetry line of the base 1, the second table 3 contracts downward to be located below the first table 2 and the third table 4.

As shown in fig. 1-6, in a preferred embodiment, the bisecting means 6 includes a gear 61, a limit slide 62, a first rack 63, and a second rack 64; the gear 61 and the limiting sliding sleeve 62 are rotatably connected through a rotating shaft, the limiting sliding sleeve is in a hollow rectangular shape, and the first rack 63 and the second rack 64 are respectively inserted from two ends of the limiting sliding sleeve 62 and enable the first rack 63 and the second rack 64 to be slidably connected with the limiting sliding sleeve 62. The tooth surfaces of the first rack 63 and the second rack 64 are opposite, the first rack 63 and the second rack 64 are meshed with the gear 61, the end of the first rack 63 is fixedly connected with a table, and the end of the second rack 64 is fixedly connected with the third table 4. Because the first rack 63 and the second rack 64 are respectively located at two sides, when the gear 62 rotates, the first rack 63 and the second rack 64 can be driven to synchronously move relative to each other or move in opposite directions, and then the first table board 2 and the third table board 4 are driven to synchronously extend out or retract relative to the base 1.

As shown in fig. 3-6, in a preferred embodiment, the bisecting device 6 further includes a driving motor 65, the driving motor 65 is fixed on the limiting sliding sleeve 62 through a bolt, and the driving motor 65 is in transmission connection with the gear 61, in this embodiment, the driving motor 65 is a speed reducing motor, and the speed reducing motor uses a motor with smaller power and can output a relatively larger torque by matching with gear sets with different diameters, so that automatic extension or retraction of the table can be realized, and convenience in use of the table is improved.

As shown in fig. 3 to 6, in a preferred embodiment, the folio opening device 6 further includes a controller 8, a first proximity switch 67, a second proximity switch 68, a first detection block 69 and a second detection block 66, the controller 8 is fixed on the base 1 through bolts, the first proximity switch 67 and the second proximity switch 68 are respectively fixed on two sides of the limit sliding sleeve 62 through bolts, the first detection block 69 is fixed on one end of the second rack 64 through bolts, the second detection block 66 is far away from the second detection block 66 and fixed with the second rack 64 through bolts, and the first proximity switch 67, the second proximity switch 68 and the driving motor 65 are respectively electrically connected with the controller 8; when the folio device 6 extends out of the first table 2 and the third table 4, the controller 8 stops the operation of the driving motor 65 after receiving the feedback that the first detection block 69 approaches the first proximity switch 67, and at this time, the first table 2 and the third table 4 extend out to the extreme positions relative to the base 1; or when the folio opening device 6 retracts the first table 2 and the third table 4, the controller 8 stops the operation of the driving motor 65 after receiving the feedback that the second detection block 66 approaches the second proximity switch 68, which indicates that the first table 2 and the third table 4 retract to the extreme positions at the moment. The proximity switch can be a Hall proximity switch, and the corresponding detection block is a magnetic block; of course, the proximity switch can also be a travel switch, and the travel switch can be triggered when the detection block is abutted against the travel switch.

As shown in fig. 1 to 6, in a preferred embodiment, the lifting device 7 comprises a first lifting joint and a second lifting joint, the first lifting joint comprises a first connecting rod 71 and a second connecting rod 72, one end of the first connecting rod 71 and one end of the second connecting rod 72 are rotatably connected through a pin, and the other end of the first connecting rod 71 and the other end of the second connecting rod 72 are rotatably connected with the second table 3 and the base 1 through pins respectively; the second lifting joint comprises a third connecting rod 73 and a fourth connecting rod 74, one end of the third connecting rod 73 and one end of the fourth connecting rod 74 are in rotating connection through a pin shaft, and the other end of the third connecting rod 73 and the other end of the fourth connecting rod 74 are in rotating connection with the second table board 3 and the base 1 through pin shafts respectively; the second lifting joint and the first lifting joint are respectively positioned at two ends of the second table plate 3, and the first lifting joint and the second lifting joint are in inverted V shapes and are symmetrical to each other. In this embodiment, the lifting device 7 further includes a fifth link 75, a sixth link 76, a first slider (not shown), a second slider (not shown), and a first sliding slot 77 and a second sliding slot 78 that are opened along the length direction of the first rack 63 and the second rack 64, the first slider and the second slider are respectively connected with the first sliding slot 77 and the second sliding slot 78 in a sliding manner, one end of the fifth link 75 is connected with the first slider in a rotating manner, the other end of the fifth link 75 is connected with the second link 72 in a rotating manner, one end of the sixth link 76 is connected with the second slider in a rotating manner, and the other end of the sixth link 76 is connected with the third link 73 in a rotating manner, in this embodiment, the fifth link 75 is connected to the middle portion of the second link 72 in a rotating manner, and the sixth link 76 is connected to the. When the first table 2, the second table 3 and the third table 4 are located on the same horizontal plane, one end of the first sliding groove 77 and one end of the second sliding groove 78 are respectively abutted to the first slider and the second slider, specifically, after the first table 2 and the third table 4 are driven to extend relative to the base 1 by the opening device 6, the fifth connecting rod 75 and the sixth connecting rod 76 are respectively driven to displace and lift due to the limitation of the lengths of the first sliding groove 77 and the second sliding groove 78, and the angles of the first lifting joint and the second lifting joint of the lifting device 7 are increased, that is, the second table 3 is increased. When the second table 3 is located below the first table 2 and the third table 4 and the ends of the first table 2 and the third table 4 are close to each other, the other ends of the first sliding groove 77 and the second sliding groove 78 are respectively abutted to the first slider and the second slider, specifically, after the opening device 6 drives the first table 2 and the third table 4 to retract relative to the base 1, the fifth connecting rod 75 and the sixth connecting rod 76 are respectively driven to displace and drive and reduce the angles of the first lifting joint and the second lifting joint of the lifting device 7 due to the limitation of the lengths of the first sliding groove 77 and the second sliding groove 79, that is, the second table 3 is lowered below the first table 2 and the third table 4.

As shown in fig. 5 to 6, in another embodiment, the lifting device 7 does not use the fifth link 75, the sixth link 76, the first slider (not shown), the second slider (not shown), the first chute 77 and the second chute 78, but uses the telescopic rod 9, the telescopic rod 9 in this embodiment is an electric telescopic rod, and the telescopic rod 9 is electrically connected to the controller 8; wherein, the connection of one end of the telescopic rod 9 and the first connecting rod 71 and the second connecting rod 72 is connected through a pin, the connection of the other end of the telescopic rod 9 and the third connecting rod 73 and the fourth connecting rod 74 is connected through a pin, and the telescopic rod 9 is electrically connected with the controller 8. When the first table board 2 and the third table board 4 are opened in use, namely the controller 8 detects that the first proximity switch 67 is triggered, the first table board 2 and the third table board 4 are extended to the extreme positions, and the controller 8 sends an extending action instruction to the telescopic rod 9 to lift the second table board 3 from the lower part, so that the first table board 2, the second table board 3 and the third table board 4 form a table top; on the contrary, when an instruction of retracting the first table 2 and the third table 4 is sent to the controller, if a button electrically connected with the controller 8 is pressed, the controller 8 drives the telescopic rod 9 to retract, so that the second table 3 descends and retracts, when the second table 3 descends and retracts, the controller 8 sends an operation instruction to the driving motor 65, that is, the first table 2 and the third table 4 are retracted, and when the controller 8 receives a feedback that the second detection block 66 is close to the second proximity switch 68, the controller 8 indicates that the first table 2 and the third table 4 are retracted to the right position, and at this time, the controller 8 stops the operation of the driving motor 65.

As shown in fig. 1 to 6, in another embodiment, support legs 11 are further respectively arranged at two sides of the base 1, and the support legs 11 are respectively fixed on the ends of the first table board 2 and the third table board 4 far away from the longitudinal symmetry line through bolts; the support legs 11 are used to support the first table 2 and the third table 4, respectively. The lower end of the supporting leg 11 is further provided with a roller 12, the roller 12 is connected with the supporting leg 11, and the roller 12 can reduce the extending or retracting resistance of the first table board 2 and the third table board 4, so that the convenience of the table in use is improved or the driving load of the driving motor 65 is reduced.

The invention has the following beneficial effects: the first table plate, the second table plate, the third table plate, the split device and the lifting device which are matched with the first table plate, the second table plate and the third table plate are respectively arranged; when the first table board and the third table board are driven to be opened by the oppositely opening device, the second table board is driven to be lifted by the lifting device and forms a table top together with the first table board and the third table board, namely the use area of the table is increased; after the first table and the third table are driven to move relatively by the oppositely opening device, the second table is driven to retract by the lifting device and is located below the first table and the third table, at the moment, the first table and the third table form a table top, the using area of the table is reduced, and therefore the table can flexibly adapt to different using occasions and the using convenience of the table is improved.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.