CN209202278U - It is a kind of can automatic open-close desk - Google Patents

Abstract

The utility model discloses it is a kind of can automatic open-close desk, including framework and table leg, wherein the top sliding of framework is provided with the first plywood and the second plywood；Being internally provided with for opening and closing driving mechanism for framework, is respectively positioned on the lower section of the first plywood, and symmetrical about the center line on the length direction of the first plywood by opening and closing driving mechanism totally 2；Opening and closing driving mechanism includes folding driving motor and guide rail；It is provided with straight-line groove on guide rail, the drive coil for joining end to end and being tensioned is provided in straight-line groove, wherein folding driving motor is for driving drive coil to rotate；Drive coil protection is located at the online portion and offline portion being distributed in same vertical guide and up and down, and online portion is fixedly connected with the first plywood, and offline portion is fixedly connected with the second plywood.The table structure is flexible, can reduce occupied space, facilitates storage and transport.

Description

It is a kind of can automatic open-close desk

Technical field

The utility model relates to technical field of furniture, more particularly to it is a kind of can automatic open-close desk.

Background technique

Desk is a kind of common furniture, essential in daily life and work, it can be used to putting on article, can For having a meal, writing, handle official business.

The desktop area of existing desk is fixed, very occupied space, it has not been convenient to be stored and be transported.

Utility model content

The purpose of the utility model is to overcome the defect of the prior art, provide it is a kind of can automatic open-close desk, to Solve the problems of the prior art.

To solve the above problems, the utility model provides: it is a kind of can automatic open-close desk, which is characterized in that including Framework and the table leg being fixedly connected with the framework, wherein the top sliding of the framework is provided with the first plywood and second and closes Plate, first plywood and second plywood are horizontally disposed；

The framework is internally provided with for driving first plywood and second plywood along length direction The opening and closing driving mechanism translated；

The opening and closing driving mechanism totally 2, it is respectively positioned on the lower section of first plywood, and the length about first plywood The center line spent on direction is symmetrical；

The opening and closing driving mechanism includes folding driving motor and guide rail, wherein the folding driving motor is located at described The lower section of first plywood；

The straight-line groove in the length direction for being parallel to first plywood is provided on the guide rail, in the straight-line groove It is provided with the drive coil for joining end to end and being tensioned, wherein the folding driving motor is for driving the drive coil to rotate；

The drive coil protection is located at the online portion and offline portion being distributed in same vertical guide and up and down, the online portion It is fixedly connected with first plywood, the offline portion is fixedly connected with second plywood；

The first turnover panel and the second turnover panel being hinged are provided between first plywood and second plywood, In, first turnover panel and the framework are rotatablely connected；

First plywood and the opposite side of second plywood are provided with positioning pin, first turnover panel and described The second turnover panel side opposite with first plywood and second plywood is provided with fixed correspondingly with the positioning pin Position hole, the positioning pin and the location hole clearance fit.

As a further improvement of the above technical scheme, the both ends of the straight-line groove, which respectively rotate, is provided with first pulley and Two pulleys, the drive coil are sheathed in the first pulley and the second pulley, wherein the first pulley is located at institute The lower section of the first plywood is stated, the second pulley is located at the lower section of second plywood.

As a further improvement of the above technical scheme, it is set respectively between the first pulley and the second pulley It is equipped with the first connector and the second connector, for first connector close to the first pulley, second connector is close The second pulley；

First connector is fixedly connected with the online portion and first plywood, second connector with it is described Offline portion is fixedly connected with second plywood.

As a further improvement of the above technical scheme, sliding tooth is provided on the output shaft of the folding driving motor Wheel, the interior sliding of the framework are provided with the spur rack in horizontality, and the driving gear is meshed with the spur rack；

The spur rack is fixedly connected with first connector.

As a further improvement of the above technical scheme, the drive coil is wire loop.

As a further improvement of the above technical scheme, it is provided in the straight-line groove for being tensioned the drive coil Tensioning wheel.

As a further improvement of the above technical scheme, the distance between described first connector and the first pulley etc. In the distance between second connector and the second pulley.

As a further improvement of the above technical scheme, both first plywood and second plywood structure and size It is all the same；

First plywood and second plywood are rectangular slab.

As a further improvement of the above technical scheme, the framework is rectangle frame.

As a further improvement of the above technical scheme, the table leg totally 4, four corners of the framework that is placed in On.

The beneficial effects of the utility model are: the utility model proposes it is a kind of can automatic open-close desk, flexible structure, It can reduce occupied space, facilitate storage and transport.Again since the desk is provided with 2 opening and closing driving mechanisms, so executing When the movement of the open or close of the first plywood and the second plywood, the two sides stress of the first plywood and the second plywood in the width direction The case where meeting is more balanced, is not in unilateral sideslip.

Detailed description of the invention

It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment Attached drawing be briefly described.It should be appreciated that the following drawings illustrates only some embodiments of the utility model, therefore should not be by Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also To obtain other relevant attached drawings according to these attached drawings.

Fig. 1 be in the utility model embodiment it is a kind of can automatic open-close desk schematic diagram；

Fig. 2 is the top view of Fig. 1；

Fig. 3 is the schematic diagram inside framework a kind of in the utility model embodiment；

Fig. 3 a be Fig. 3 in A to partial enlarged view；

Fig. 4 is the top view of Fig. 3；

Fig. 5 is a kind of schematic diagram of guide rail in the utility model embodiment；

Fig. 6 is the front view of Fig. 5；

Fig. 7 is the schematic diagram inside framework a kind of in the utility model embodiment；

Fig. 8 be in the utility model embodiment it is a kind of can automatic open-close desk the first plywood and the second plywood be in and close The schematic diagram of conjunction state；

Fig. 9 be in the utility model embodiment it is a kind of can automatic open-close desk the first turnover panel and the second turnover panel be in folding The schematic diagram of overlapping state；

Figure 10 be in the utility model embodiment it is a kind of can automatic open-close desk the first turnover panel and the second turnover panel be in Schematic diagram in switching process.

Main element symbol description:

1100- framework；1200- table leg；The first plywood of 2100-；The second plywood of 2200-；2300- opens and closes driving motor； 2400- guide rail；2410- straight-line groove；The online portion 2411-；The offline portion 2412-；2510- first pulley；2520- second pulley； The first connector of 2610-；The second connector of 2620-；2700- spur rack；The first turnover panel of 3100-；The second turnover panel of 3200-；3310- First support chip；The second support chip of 3320-；3400- shaft；3500- support wheel；3600- turn drive motor.

Specific embodiment

Hereinafter, the various embodiments of the utility model will be described more fully.The utility model can have various realities Example is applied, and can adjust and change wherein.It should be understood, however, that: there is no limit the various embodiments of the utility model In the intention of specific embodiment disclosed herein, but the utility model should be interpreted as covering falling into the various of the utility model All adjustment, equivalent and/or optinal plan in the spirit and scope of embodiment.

It hereinafter, can the term " includes " used in the various embodiments of the utility model or " may include " instruction institute Disclosed function, operation or the presence of element, and the increase of one or more functions, operation or element is not limited.In addition, As used in the various embodiments of the utility model, term " includes ", " having " and its cognate are meant only to indicate specific Feature, number, step, operation, the combination of element, component or aforementioned item, and be understood not to exclude one or first A number of other features, number, step, operation, element, component or aforementioned item combined presence or increase one or more spies Sign, number, step, operation, element, component or aforementioned item combination a possibility that.

In the various embodiments of the utility model, statement " A or/and B " includes any combination of the text listed file names with Or all combinations, such as, it may include A, it may include B or may include A and B both.

The statement (" first ", " second " etc.) used in the various embodiments of the utility model can be modified various Various constituent element in embodiment, but respective sets can not be limited into element.For example, the above statement is not intended to limit the element Sequence and/or importance.The above statement is only used for the purpose for differentiating an element and other elements.For example, first uses Family device and second user device indicate different user device, although the two is all user apparatus.For example, practical not departing from In the case where the range of novel various embodiments, first element is referred to alternatively as second element, and similarly, second element can also quilt Referred to as first element.

It should also be noted that in the present invention, unless otherwise specific regulation and definition, " installation ", " connection ", " fixation " Equal terms shall be understood in a broad sense, and can be and is directly connected to, and can be indirectly connected through an intermediary；It can be two elements Internal connection.For the ordinary skill in the art, it can understand that above-mentioned term is practical at this as the case may be Concrete meaning in novel.

In the present invention, those skilled in the art are it is to be appreciated that indicating position or position in text The term of relationship is orientation based on the figure or positional relationship, is merely for convenience of description the utility model and simplification is retouched It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, constructed and grasped with specific orientation Make, therefore should not be understood as limiting the present invention.

The term used in the various embodiments of the utility model is used only for the purpose of describing specific embodiments and simultaneously It is not intended to the various embodiments of limitation the utility model.Unless otherwise defined, otherwise all terms used herein (including skill Art term and scientific term) have and the various embodiment one skilled in the art of the utility model are normally understood contains The identical meaning of justice.The term (term such as limited in the dictionary generally used) be to be interpreted as have to related The identical meaning of situational meaning in technical field and Utopian meaning will be interpreted as having or too formal contained Justice, unless being clearly defined in the various embodiments of the utility model.

Embodiment 1

Refering to fig. 1 and Fig. 2, in the present embodiment, propose it is a kind of can automatic open-close desk, including framework 1100 and and frame The table leg 1200 that body 1100 is fixedly connected.Wherein, can be set in framework 1100 the first plywood 2100 in horizontality, Second plywood 2200, the first turnover panel 3100 and the second turnover panel 3200, the first turnover panel 3100 and the second turnover panel 3200 are located at first and close Between plate 2100 and the second plywood 2200.

In the present embodiment, in the present embodiment, the first plywood 2100, the second plywood 2200, the first turnover panel 3100 and Two turnover panels 3200, four length direction is consistent, and width direction is also consistent.

First plywood 2100 and the second plywood 2200 are slidably set in framework 1100, and the first turnover panel 3100 and second turns over Both plates 3200 are foldable, meanwhile, the first turnover panel 3100 is rotatablely connected with framework 1100, and the first turnover panel 3100 and the second turnover panel 3200, which can be used hinged mode, is attached.Wherein, in the present embodiment, the first plywood 2100 and the second plywood 2200 can be certainly Dynamic folding, the first turnover panel 3100 and the second turnover panel 3200 can auto-folders.

In the present embodiment, both the first plywood 2100 and the second plywood 2200 may be configured as identical structure and size, Wherein, the first plywood 2100 and the second plywood 2200 may be configured as rectangular slab.

Both first turnover panel 3100 and the second turnover panel 3200 may be set to be identical structure and size, wherein first Equal rectangular slab also can be set in turnover panel 3100 and the second turnover panel 3200.

The desk has the function of automatic open-close, for realize the first plywood 2100 and the second plywood 2200 automatically open or Closure, can be designed as follows in the present embodiment:

As shown in Fig. 3, Fig. 3 a and Fig. 4, the inside of framework 1100 be may be provided with for driving the first plywood 2100 and second The opening and closing driving mechanism that plywood 2200 is translated along length direction.In the present embodiment, opening and closing driving mechanism is settable There are 2, is respectively positioned on the lower section of the first plywood 2100, and symmetrical about the center line on the length direction of the first plywood 2100.It opens Closing driving mechanism may include folding driving motor 2300 and guide rail 2400.Folding driving motor in this 2 opening and closing driving mechanisms 2300 are electrically connected same electric machine controller, and 2 steerings for opening and closing driving motor and revolving speed are synchronous.

Wherein, to allow what structure observed to be more clear, guide rail 2400 is not shown below Fig. 3.

As shown in figure 5, being provided with the straight-line groove 2410 in horizontality on guide rail 2400, wherein straight-line groove 2410 is flat Row is in the length direction of the first plywood 2100, the i.e. direction and the shifting of the first plywood 2100 and the second plywood 2200 of straight-line groove 2410 Dynamic direction is consistent.

As shown in fig. 6, may be provided with the drive coil for joining end to end and being tensioned in straight-line groove 2410, wherein folding driving Motor 2300 is for driving drive coil to rotate.Drive coil includes the online portion being distributed in same vertical guide and up and down 2411 and offline portion 2412, online portion 2411 be fixedly connected with the first plywood 2100, offline portion 2412 and the second plywood 2200 are solid Fixed connection.

After starting folding driving motor 2300, folding driving motor 2300 drives drive coil to rotate, at this point, online portion 2411 and the direction of motion in offline portion 2412 can be towards or away from will so make the first plywood 2100 and the second plywood 2200 Synchronous translational, to complete the movement of the first plywood 2100 and the second plywood 2200 closure or opening.

In the present embodiment, to install to drive coil, the both ends of straight-line groove 2410, which can respectively rotate, is provided with first Pulley 2510 and second pulley 2520, drive coil are sheathed in first pulley 2510 and second pulley 2520, wherein first is sliding Wheel 2510 is located at the lower section of the first plywood 2100, and second pulley 2520 is located at the lower section of the second plywood 2200.

The first connector 2610 and second can be respectively arranged between first pulley 2510 and second pulley 2520 to connect Fitting 2620, the first connector 2610 is close to first pulley 2510, and the second connector 2620 is close to second pulley 2520.First connects Fitting 2610 is fixedly connected with online portion 2411 and the first plywood 2100 respectively, the second connector 2620 respectively with offline portion 2412 It is fixedly connected with the second plywood 2200, makes online portion 2411 and the first plywood 2100 solid by the first connector 2610 as a result, Fixed connection, is fixedly connected with offline portion 2412 with the second plywood 2200 by the second connector 2620.

It in the present embodiment, can be by adjusting the fixed position of installation, so that the first connector 2610 and first pulley The distance between 2510 are equal to the distance between the second connector 2620 and second pulley 2520.

To drive drive coil to rotate, opening and closing may be provided with driving gear, framework on the output shaft of driving motor 2300 The spur rack 2700 in horizontality is slidably provided in 1100, driving gear is meshed with spur rack 2700.Spur rack 2700 move in the horizontal direction, and moving direction is parallel with the folding direction of the first plywood 2100 and the second plywood 2200.

Wherein, spur rack 2700 is fixedly connected with the first connector 2610.After opening and closing the starting of driving motor 2300, sliding tooth Wheel drives spur rack 2700 mobile, then drives first connector 2610 mobile by spur rack 2700, finally, connecting first Under the action of fitting 2610, drive coil is started turning.

In the present embodiment, drive coil can choose using wire loop.

To make drive coil be in tensioning state, for being tensioned drive coil can be set in straight-line groove 2410 Bearing up pulley.

The desk also has the function of auto-folder, for the auto-folder for realizing the first turnover panel 3100 and the second turnover panel 3200 Or expansion, it can be designed as follows in the present embodiment:

As shown in fig. 7, the first support chip 3310 and the second support chip 3320 can be arranged in parallel in framework 1100, first Blade 3310 and the second support chip 3320 are located at the two sides of the width direction of the first turnover panel 3100 and the second turnover panel 3200.Its In, the width of the first turnover panel 3100 and the second turnover panel 3200 is respectively less than between the first support chip 3310 and the second support chip 3320 Spacing.In the present embodiment, spur rack 2700 can be placed on the first support chip 3310, and be slidably connected therewith.

Between first support chip 3310 and the second support chip 3320 can vertical and rotation be provided with shaft 3400, shaft 3400 It can be fixedly connected with the lower surface of the first turnover panel 3100, wherein the connecting components such as anchor ear can be fixedly installed in shaft 3400, led to Crossing the fasteners such as screw is fixedly connected with anchor ear with the first turnover panel 3100.The pivot center of shaft 3400 is horizontal line.

The lower section of second turnover panel 3200 is provided with support wheel 3500, and support wheel 3500 is used for the second turnover panel to folded state 3200 are supported.Wherein, the overturning driving electricity for driving shaft 3400 to rotate is fixedly installed on the first support chip 3310 Machine 3600.

In the present embodiment, the pivot center of the moving direction of the first plywood 2100 and the second plywood 2200 and shaft 3400 In parallel.

When folding to the first turnover panel 3100 and the second turnover panel 3200, first start turn drive motor 3600, at this point, the One turnover panel 3100 under the action of shaft 3400 towards the inner rotation of framework 1100, due to the second turnover panel 3200 and the first turnover panel 3100 is hinged, so the second turnover panel 3200 can be under the traction of the first turnover panel 3100 towards the internal motion of framework 1100.When After one turnover panel 3100 rotates 180 °, the second turnover panel 3200 can be posted by support wheel 3500 and be fully located at the first turnover panel 3100 Lower section, be achieved in the folding of the first turnover panel 3100 and the second turnover panel 3200.To the first turnover panel 3100 and the second turnover panel 3200 When being unfolded, rotate backward turn drive motor 3600.

In the present embodiment, the first turnover panel 3100 and the second turnover panel 3200 can be carried out hinged by hinge.

To keep stablizing and balance, support wheel 3500 can be equipped with 2, and be located at the first support chip 3310 and second In blade 3320.Wherein, width of the spacing between this 2 support wheels 3500 less than the second turnover panel 3200.Support wheel 3500 can Rotation, when this is in contact with it the second turnover panel 3200 and is in moving condition, between the second turnover panel 3200 and support wheel 3500 Rolling friction can more easily complete the movement for folding or being unfolded so as to reduce frictional force.

In the present embodiment, the line between this 2 support wheels 3500 is parallel with shaft 3400.Wherein, support wheel 3500 Lower than height locating for shaft 3400, this to fold completely in the first turnover panel 3100 and the second turnover panel 3200 locating height Afterwards, the first turnover panel 3100 and the second turnover panel 3200 will not protrude from the upper surface of framework.

To drive shaft 3400 to rotate, worm screw, shaft 3400 are fixedly installed on the output shaft of turn drive motor 3600 Upper synchronous rotation is provided with worm gear, worm and wheel engagement.

Wherein, in the present embodiment, be it is more intuitive and clearly structure is illustrated, shaft is not shown in Fig. 3 Opening and closing driving mechanism is not shown in 3400 and turn drive motor 3600, Fig. 7.

Referring to Fig. 8, Fig. 9 and Figure 10, the table structure is flexible, can reduce occupied space, facilitates storage and transport.

Since desk includes openable and closable first plywood 2100 and the second plywood 2200 and folding first turnover panel 3100 and second turnover panel 3200, it is possible to make the minimum of desk by operating as follows: make to be unfolded by opening and closing driving mechanism The first turnover panel 3100 and the second turnover panel 3200 fold；Later, starting, which can congratulate driving mechanism, makes open 2100 He of the first plywood Second plywood 2200 closure.To prevent the first plywood 2100 and the second plywood 2200 to the first turnover panel 3100 and the second turnover panel 3200 Folding interfere, the first plywood 2100 and the second plywood 2200 phase again can be made by opening and closing driving mechanism before being folded Carry on the back mobile a distance.At this point, the usable floor area of desk is small, demand when can satisfy fewer in number.

When need to meet number it is more in the case where using the needs of desk when, then can proceed as follows: by opening Closing driving mechanism opens the first plywood 2100 of closure and the second plywood 2200, and turns over spacing between the two greater than first The width of plate 3100 and the second turnover panel 3200；Later, start turn drive motor 3600, so that 3100 He of the first turnover panel folded The expansion of second turnover panel 3200, at this point, the upper surface of the first turnover panel 3100 and the second turnover panel 3200 is upward, and the two is supported on In framework 1100.

In the present embodiment, positioning pin can be set in the opposite side of the first plywood 2100 and the second plywood 2200, Correspondingly, the first turnover panel 3100 and the second turnover panel 3200 are set relative to two sides of the first plywood 2100 and the second plywood 2200 It is equipped with and the one-to-one location hole of positioning pin, wherein positioning pin and location hole clearance fit.In the first turnover panel 3100 and second After turnover panel 3200 is fully deployed, positioning pin on the first plywood 2100 and the second plywood 2200 is respectively aligned to the first turnover panel 3100 With the location hole of second 3,200 two sides of turnover panel, it finally can also restart an opening and closing driving mechanism, so that the first plywood 2100 and second plywood 2200 move towards, until be bonded completely with the first turnover panel 3100 and the second turnover panel 3200, meanwhile, make phase In the positioning pin insertion location hole answered, so that the first plywood 2100, the second plywood 2200, the first turnover panel 3100 and second turn over Plate 3200, four when in a horizontal state, can keep it is more stable also, avoid during using desk, first The case where turnover panel 3100 and the second turnover panel 3200 are overturned.

Due to being provided with positioning pin and location hole, then also being needed before folding the first turnover panel 3100 and the second turnover panel 3200 Starting an opening and closing driving mechanism is moved away from the first plywood 2100 and the second plywood 2200, so that positioning pin is from location hole It completely disengages, later, can just facilitate the folding work for executing the first turnover panel 3100 and the second turnover panel 3200.

In the present embodiment, framework 1100 can choose using rectangle frame.Wherein, table leg 1200 may be provided with 4, and divide It is placed on four corners of framework 1100.

It will be appreciated by those skilled in the art that the accompanying drawings are only schematic diagrams of a preferred implementation scenario, module in attached drawing or Process is not necessarily implemented necessary to the utility model.

It will be appreciated by those skilled in the art that the module in device in implement scene can be described according to implement scene into Row is distributed in the device of implement scene, can also be carried out corresponding change and is located at the one or more dresses for being different from this implement scene In setting.The module of above-mentioned implement scene can be merged into a module, can also be further split into multiple submodule.

Above-described embodiment serial number is for illustration only, does not represent the superiority and inferiority of implement scene.

Disclosed above is only several specific implementation scenes of the utility model, and still, the utility model is not limited to This, the changes that any person skilled in the art can think of should all fall into the protection scope of the utility model.

Claims (10)

1. one kind can automatic open-close desk, which is characterized in that including framework and the table leg being fixedly connected with the framework, In, the top sliding of the framework is provided with the first plywood and the second plywood, and first plywood and second plywood are horizontal Setting；

The framework is internally provided with for driving first plywood and second plywood to carry out along length direction The opening and closing driving mechanism of translation；

The opening and closing driving mechanism totally 2, it is respectively positioned on the lower section of first plywood, and the length side about first plywood Upward center line is symmetrical；

The opening and closing driving mechanism includes folding driving motor and guide rail, wherein the folding driving motor is located at described first The lower section of plywood；

The straight-line groove in the length direction for being parallel to first plywood, setting in the straight-line groove are provided on the guide rail There is the drive coil for joining end to end and being tensioned, wherein the folding driving motor is for driving the drive coil to rotate；

The drive coil protection is located at the online portion and offline portion being distributed in same vertical guide and up and down, the online portion and institute It states the first plywood to be fixedly connected, the offline portion is fixedly connected with second plywood；

The first turnover panel and the second turnover panel being hinged are provided between first plywood and second plywood, wherein institute It states the first turnover panel and the framework is rotatablely connected；

First plywood and the opposite side of second plywood are provided with positioning pin, first turnover panel and described second The turnover panel side opposite with first plywood and second plywood be provided with the one-to-one location hole of the positioning pin, The positioning pin and the location hole clearance fit.

2. it is according to claim 1 can automatic open-close desk, which is characterized in that the both ends of the straight-line groove respectively rotate and set It is equipped with first pulley and second pulley, the drive coil is sheathed in the first pulley and the second pulley, wherein institute The lower section that first pulley is located at first plywood is stated, the second pulley is located at the lower section of second plywood.

3. it is according to claim 2 can automatic open-close desk, which is characterized in that be located at the first pulley and described the The first connector and the second connector are respectively arranged between two pulleys, first connector is close to the first pulley, institute The second connector is stated close to the second pulley；

First connector is fixedly connected with the online portion and first plywood, second connector with it is described offline Portion is fixedly connected with second plywood.

4. it is according to claim 3 can automatic open-close desk, which is characterized in that it is described folding driving motor output shaft On be provided with driving gear, sliding is provided with the spur rack in horizontality in the framework, the driving gear with it is described Spur rack is meshed；

The spur rack is fixedly connected with first connector.

5. it is according to claim 1 can automatic open-close desk, which is characterized in that the drive coil be wire loop.

6. it is according to claim 1 can automatic open-close desk, which is characterized in that be provided in the straight-line groove for making The tensioning wheel of the drive coil tensioning.

7. it is according to claim 3 can automatic open-close desk, which is characterized in that first connector and described first The distance between pulley is equal to the distance between second connector and the second pulley.

8. it is according to claim 1 can automatic open-close desk, which is characterized in that first plywood and it is described second close Both plates structure and size are all the same；

First plywood and second plywood are rectangular slab.

9. it is according to claim 1 can automatic open-close desk, which is characterized in that the framework be rectangle frame.

10. it is according to claim 9 can automatic open-close desk, which is characterized in that the table leg totally 4, be placed in institute It states on four corners of framework.