CN107890203A - A kind of same table of changeable size top - Google Patents

Abstract

The invention discloses a lifting table with a variable desktop size, which is characterized in that it includes a desktop assembly, a table frame, a power assembly and a lifting member; the desktop assembly includes a movable part and a fixed part, and the movable part is hinged to the fixed part; The lifting supports the desktop assembly, the power assembly provides and transmits power and then drives the lifting member to carry out the lifting action, and the table frame supports the power assembly and the lifting member. In the present invention, the size of the desktop can be adjusted by setting the movable part, and the power assembly is used to provide power for the lifting parts. At the same time, the self-locking of the self-locking motor can ensure that the desktop reaches a preset height, and the error is very small. Or when the right movable plate is used, the desktop area becomes larger, and the contact point of the lifting member and the fixed part leans towards the periphery, so as to ensure that the raised lifting table has better stability.

Description

Lifting table with variable desktop size

technical field

The invention relates to the technical field of lift tables, in particular to a lift table with variable desktop size.

Background technique

The factors that affect the use characteristics of the table mainly include the height of the table, the weight of the table, portability, and the size of the table. Some existing tables have a small structure and take up a small area after being folded, but the desktop area is also small after being opened, and the desktop area is limited, and the folded table usually cannot be lifted, and the height of the desktop is fixed. It is very inconvenient to use. Although some tables have achieved portability and foldable functions, their overall structure is complex, and the requirements for matching precision between pipe fittings are high, that is, the manufacturability is poor, which in turn increases the processing cost.

The existing Chinese patent notification number is CN204635409U, a kind of lifting table that can increase the desktop, including a base, a desktop and a lifting mechanism; The sleeve and the crank, the lifting mechanism are fixed on the base through the hinge at the bottom, the second cross bar is hinged on the hinge, and the fixed sleeve and the sleeve are respectively hinged on the upper end of the second cross bar through the hinge. Turn and set the screw rod, thread the sleeve on the screw rod, the first cross rod is hinged above the screw rod, and the upper end of the first cross rod is hinged with a horizontal fixing seat through a hinge, and the two ends of the desktop Both are equipped with a rotating shaft, and an expansion board is fixedly arranged on the other side of the rotating shaft. However, because the expansion board is arranged on the periphery of the desktop, it is easily affected by external forces, which leads to poor stability of the expansion board and is easy to be damaged. For example, if a person leans against the expansion board, the positioning pin in the lift table may be damaged. , so that the lifting table loses the function of expanding the desktop area, and at the same time, the lifting mechanism of the lifting table is also very unstable when supporting the desktop. When the lifting table is rising, the contact point between the lifting mechanism and the desktop is close to the middle Therefore, when the desktop is raised, the lift table is prone to shaking. This lift table has poor load-carrying capacity and insufficient stability. When the table needs to be raised, the handle must be turned manually, which is very troublesome.

Contents of the invention

The technical problem to be solved by the present invention is to propose a lifting table with variable desktop size in view of the above-mentioned deficiencies of the prior art.

The technical solution adopted by the present invention to solve the technical problem is a variable-sized lifting table, which includes:

The desktop assembly includes a movable part and a fixed part, and the movable part is hinged to the fixed part;

The table frame comprises a left support leg, a support beam, four guide sleeves fixed on the support beam and a right support leg, the support beam connects the left support leg and the right support leg, and the four guide sleeves are evenly distributed on the support beam both ends of

The power assembly includes a self-locking motor arranged on the support beam, a first transmission gear driven by the self-locking motor, a second transmission gear meshed with the first transmission gear, a transmission shaft passing through the second transmission gear, and a drive shaft respectively connected to the transmission Two cranks fixedly connected to the two ends of the shaft, each crank is connected with a sliding cylinder;

The lifting member includes four lifting rods corresponding to the guide sleeves and two guide rods, the lower end of each lifting rod extends into the corresponding guide sleeve, and the upper end of each lifting rod is provided with a connecting sleeve, and the connecting sleeve is connected to In the fixed part of the desktop assembly, each guide rod is connected to two lifting rods, and each of the guide rods passes through the sliding cylinder.

Further, the fixing part includes a left fixing plate and a right fixing plate which are symmetrical to each other, and the fixing part also includes swingable connecting rods respectively arranged on the left fixing plate and the right fixing plate;

The movable part includes a left movable plate and a right movable plate which are symmetrical to each other, the connecting rod arranged on the left fixed plate is hinged with the left movable plate, the connecting rod arranged on the right fixed plate is hinged with the right movable plate, and the left movable plate and the right movable plate are hinged. The right movable plate is between the left fixed plate and the right fixed plate.

Further, the left fixed plate and the right fixed plate are respectively provided with positioning rods capable of supporting the left movable plate and the right movable plate, and the left movable plate and the right movable plate are respectively provided with positioning ears which can be connected with the positioning rods;

The left fixed plate and the right fixed plate are respectively provided with positioning rings, and the left movable plate and the right movable plate are respectively provided with positioning holes connected with the positioning rings.

Further, the left fixed plate and the left movable plate are provided with magnetic strips that can attract each other, the left movable plate and the right movable plate are provided with magnetic strips that can attract each other, and the right movable plate and the right fixed plate are provided with There are magnetic strips that attract each other.

Further, the connecting sleeve includes a threaded rod, a rotating column, a limit plate, a handle and a helical sleeve with a helical gap; the helical sleeve is set on the rotating column, and the handle is fixed on the outer wall of the rotating column and along the Radially outward, the handle passes through the gap of the spiral sleeve, the threaded rod passes through the rotating column and the limit plate, the limit plate is above the rotating block, and the threaded rod passes through the rotating column The part is connected with the upper end of the lifting rod.

Further, the fixed part is provided with four sliders correspondingly connected with the connecting sleeve, and slide rails respectively corresponding to the sliders; the two ends of each slide rail are respectively provided with limit blocks to prevent the sliders from slipping out of the track .

Further, each of the sliders is also provided with a positioning screw passing through the positioning through hole and the positioning through hole, and the positioning screw can touch the lower surface of the fixing part.

Further, the slider is detachably connected to the connecting sleeve, the lower surface of the slider is provided with a fixing lug and a locknut, and the upper end of the threaded rod passes through the fixing lug and is connected with the locknut .

Further, two fixing rods respectively extend from both ends of the supporting beam, and each fixing rod is connected with a guide sleeve.

Further, the left outrigger is symmetrical to the right outrigger, the left outrigger includes a table foot and a T-shaped support column erected on the table foot, at least one anti-skid pad is provided on the lower surface of the table foot, and the The lower surface of the anti-skid pad is provided with multiple grooves.

In the present invention, the size of the desktop can be adjusted by setting the movable part, and the power assembly is used to provide power for the lifting parts. At the same time, the self-locking of the self-locking motor can ensure that the desktop reaches a preset height, and the error is very small. Or when the right movable plate is used, the desktop area becomes larger, and the contact point of the lifting member and the fixed part leans towards the periphery, so as to ensure that the raised lifting table has better stability.

Description of drawings

Fig. 1 is a schematic diagram of the three-dimensional structure of the present invention;

Fig. 2 is the structural representation of table frame of the present invention;

Fig. 3 is a schematic structural diagram of the power assembly of the present invention;

Fig. 4 is a structural schematic diagram of the lifter of the present invention;

Fig. 5 is a schematic structural diagram of the desktop assembly of the present invention.

Detailed ways

The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

Please refer to FIG. 1-FIG. 5 , an elevating table with a variable desktop size according to the present invention, which includes a desktop assembly 100 , a table frame 200 , a power assembly 300 and an elevating member 400 .

The desktop assembly 100 includes a movable part and a fixed part, the movable part is hinged to the fixed part; the movable part can be turned up or down, and the connection between the movable part and the fixed part is used as a fulcrum for rotation.

The table frame 200 comprises a left leg 210, a support beam 220, four guide sleeves 230 fixed on the support beam 220 and a right leg 240, the support beam 220 connects the left leg 210 and the right leg 240, the Four guide sleeves 230 are evenly distributed on both ends of the support beam 220;

The power assembly 300 includes a self-locking motor 310 arranged on the support beam 220, a first transmission gear 320 driven by the self-locking motor 310, and a second transmission gear 330 meshed with the first transmission gear 320, passing through the second transmission gear The power transmission shaft 340 of 330 and the two cranks 350 fixedly connected with the two ends of the power transmission shaft 340 respectively, each crank 350 is connected with a slider 360; the self-locking motor 310 can be self-locking, and when the self-locking motor 310 is closed, the self-locking The motor 310 can be self-locking, and the motor will not rotate even when it is under load. The self-locking motor 310 can rotate forward and reverse. When rotating, the self-locking motor 310 automatically stops and self-locks by rotating the preset number of turns. The self-locking motor 310 can rotate with the first transmission gear 320, and the first transmission gear 320 drives the second transmission gear 330 to rotate, and the second transmission gear 330 drives the transmission shaft 340 to rotate, and the transmission shaft 340 drives the transmission shaft 340 to rotate. Cranks 350 at both ends rotate.

The lifting member 400 includes four lifting rods 410 corresponding to the guide sleeves 230 and two guide rods 420. The lower end of each lifting rod 410 extends into the corresponding guide sleeve 230, and the upper end of each lifting rod 410 is provided with a connecting rod. sleeve 430, the connection sleeve 430 is connected to the fixed part in the desktop assembly 100, each guide rod 420 is connected to two lifting rods 410, and each of the guide rods 420 passes through the sliding cylinder 360, and the lifting rod 410 is H-shaped, the lifting rod 410 can slide up and down in the guide sleeve 230, and the sleeve can slide along the axial direction of the guide rod 420. When the self-locking motor 310 starts to rotate, the first transmission gear 320, the second transmission gear 330 1. The transmission of the transmission shaft 340 in turn drives the crank 350 to rotate. The rotation of the crank 350 makes the sliding cylinder 360 slide along the axial direction of the guide rod 420. During the rotation of the crank 350, the lifting member 400 is driven up or down.

Further preferably, the fixing part includes a left fixing plate 110 and a right fixing plate 120 which are symmetrical to each other, and the fixing part also includes swingable connecting rods respectively arranged on the left fixing plate 110 and the right fixing plate 120;

The movable part comprises a left movable plate 130 and a right movable plate 140 which are symmetrical to each other, the connecting rod arranged on the left fixed plate 110 is hinged with the left movable plate 130, the connecting rod arranged on the right fixed plate 120 is hinged with the right movable plate 140, The left movable plate 130 and the right movable plate 140 can be turned up and down, and the left movable plate 130 and the right movable plate 140 are located between the left fixed plate 110 and the right fixed plate 120 .

Further preferably, the left fixed plate 110 and the right fixed plate 120 are respectively provided with positioning rods 150 capable of supporting the left movable plate 130 and the right movable plate 140, and the left movable plate 130 and the right movable plate 140 are respectively provided with The locating lug that locating bar 150 links to each other; The upper surface of left movable plate 130, right movable plate 140, left fixed plate 110 and right fixed plate 120 can be on the same plane, and the area that the desktop assembly 100 of this moment expands is the largest, can be lowered. Turn over the left movable plate 130, the upper surface of the right movable plate 140, the left fixed plate 110 and the right fixed plate 120 can be on the same plane, at this moment, the area that the desktop assembly 100 expands is medium, turn down the right movable plate 140, the left movable plate 130. The upper surfaces of the left fixed plate 110 and the right fixed plate 120 are on the same plane. At this time, the area of the desktop assembly 100 is expanded. Turn down the left movable plate 130 and the right movable plate 140, and the left fixed plate 110 and The upper surface of the right fixing plate 120 is in the same plane, and at this moment, the area of the desktop is the smallest.

Described left fixed plate 110, right fixed plate 120 are provided with locating ring respectively, and described left movable plate 130, right movable plate 140 are respectively provided with the positioning hole that links to each other with locating ring, described left movable plate 130, right movable plate 140 When not being unfolded, in order to allow the left movable plate 130 and the right movable plate 140 not to swing at will, the left movable plate 130 and the right movable plate 140 are fixed by a fixing ring. At this time, the upper surfaces of the left movable plate 130 or the right movable plate 140 respectively Close to the lower surfaces of the left fixing plate 110 and the right fixing plate 120 .

Further preferably, in order to allow the left movable plate 130 and the right movable plate 140 to be in close contact with the left fixed plate 110 and the right fixed plate 120 when unfolded, the left fixed plate 110 and the left movable plate 130 are provided with mutually attracting Magnetic strips, the left movable plate 130 and the right movable plate 140 are provided with magnetic strips that can attract each other, and the right movable plate 140 and the right fixed plate 120 are provided with magnetic strips that can attract each other.

Further preferably, the connection sleeve 430 includes a threaded rod 431, a rotating column 432, a limit plate 433, a handle 434 and a helical sleeve 435 with a helical gap; the helical sleeve 435 is sleeved on the rotating column 432, and the handle 434 It is fixed on the outer wall of the rotating column 432 and protrudes outward along the radial direction of the rotating column 432. The handle 434 passes through the gap of the spiral sleeve 435, and the threaded rod 431 passes through the rotating column 432 and the limit plate 433. The limiting disc 433 is above the rotating block, and the part of the threaded rod 431 passing through the rotating column 432 is connected with the upper end of the lifting rod 410 .

Further preferably, the fixed part is provided with four sliders 160 correspondingly connected to the connecting sleeve 430, and slide rails 170 respectively corresponding to the sliders 160; Slide out the limit block 180 of the track; when the expansion area of the desktop assembly 100 changes, the connecting position of the lifting member 400 and the fixed part should change so that the lifting rod 410 can extend into the guide sleeve 230, and at this time, the sliding The block 160 is connected with the connecting sleeve 430, and the slider 160 can slide. By adjusting the position of the slider 160, the elevating rod 410 can always be placed in the guide sleeve 230 and support the fixed part. For example, the original desktop assembly 100 unfolds the left movable plate 130 And right movable plate 140, now elevating rod 410 supports fixed part and stretches in the guide sleeve 230, if turn down left movable plate 130, only unfold right movable plate 140, at this moment, in order to allow left fixed plate 110 and right movable plate 140 close contact, need to adjust the position of left fixed plate 110, right movable plate 140 and right fixed plate 120, can also be in guide sleeve 230 for allowing elevating rod 410, this moment, can realize by sliding slide block 160.

Further preferably, each of the sliders 160 is also provided with a positioning screw 161 passing through the positioning through hole and the positioning through hole, and the positioning screw 161 can touch the lower surface of the fixing part, and the positioning screw 161 can prevent sliding. Block 160 slides.

Further preferably, the slider 160 is detachably connected to the connecting sleeve 430, the lower surface of the slider 160 is provided with a fixed ear seat 162 and a locknut, and the upper end of the threaded rod 431 passes through the fixed ear seat 162 and connected with the locknut.

Further preferably, two fixing rods respectively extend from both ends of the support beam 220 , and each fixing rod is connected with a guide sleeve 230 .

Further preferably, the left leg 210 is symmetrical to the right leg 240, the left leg 210 includes a table foot 211 and a T-shaped support column 212 erected on the table foot 211, and the lower surface of the table foot 211 is set There is at least one anti-slip pad, the lower surface of the anti-slip pad is provided with multiple grooves, the anti-slip pad supports the T-shaped support column 212, and the multiple grooves of the anti-slip pad play the role of anti-slip.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which the present invention belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the present invention or go beyond the definition of the appended claims range.

Claims (10)

1. A kind of 1. same table of changeable size top, it is characterised in that including：

   Desktop component, including movable part and fixed part, the movable part are hinged with fixed part；

   Table frame, including left side supporting leg, support beam, four guide sleeves and the right supporting leg being fixed in support beam, the support beam Connection left side supporting leg and the right supporting leg, four guide sleeves are distributed evenly over the both ends of support beam；

   Power Component, including be arranged in support beam self-locking motor, by the first travelling gear of self-locking motor driving, with first Second travelling gear of travelling gear engagement, it is through the power transmission shaft of the second travelling gear and affixed with both ends of the drive shaft respectively Two cranks, each crank are connected with slide cartridge；

   Lifters, including four stretched into pair with the one-to-one elevating lever of guide sleeve and two guide rods, the lower end of each elevating lever In the guide sleeve answered, the upper end of each elevating lever is provided with adapter sleeve, and the adapter sleeve connects the fixed part in desktop component, often Individual guide rod connects two elevating levers, and each guide rod both passes through slide cartridge.
2. A kind of 2. same table of changeable size top according to claim 1, it is characterised in that：The fixed part includes phase Mutually symmetrical left fixed plate, right fixed plate, the fixed part also include being separately positioned in left fixed plate and right fixed plate and can putting Dynamic connecting rod；

   Movable part includes symmetrical left portable plate, right portable plate, and the connecting rod being arranged in left fixed plate is cut with scissors with left portable plate Connect, the connecting rod being arranged in right fixed plate is hinged with right portable plate, the left portable plate and right portable plate be in left fixed plate with Between right fixed plate.
3. A kind of 3. same table of changeable size top according to claim 2, it is characterised in that：The left fixed plate, the right side Fixed plate is respectively arranged with sustainable left portable plate, the locating rod of right portable plate, and the left portable plate, right portable plate are set respectively There is the chucking lug that can be connected with locating rod；

   The left fixed plate, right fixed plate are respectively arranged with locating ring, and the left portable plate, right portable plate are respectively arranged with determining The connected positioning hole of position ring.
4. A kind of 4. same table of changeable size top according to Claims 2 or 3, it is characterised in that：The left fixed plate, The magnetic stripe that can attract each other is provided with left portable plate, the magnetic stripe that can be attracted each other is provided with the left portable plate, right portable plate, it is described Right portable plate and right fixed plate are provided with the magnetic stripe that can be attracted each other.
5. A kind of 5. same table of changeable size top according to claim 1, it is characterised in that：The adapter sleeve includes spiral shell Rasp bar, column spinner, position-arresting disk, handle and the screw-casing with gap between screw；The screw-casing is enclosed on column spinner, the handle The outer wall of column spinner and extending radially out along column spinner are fixed on, the handle passes through the gap of the screw-casing, described Threaded rod runs through column spinner and position-arresting disk, and the position-arresting disk is in above spill spin block, and the threaded rod passes the part of column spinner It is connected with the upper end of the elevating lever.
6. A kind of 6. same table of changeable size top according to claim 5, it is characterised in that：The fixed part is provided with Four corresponding with adapter sleeve connected sliding block, respectively slide rails corresponding with sliding block；Be respectively arranged with by the both ends of each slide rail with Non-slipping block skids off the limited block of track.
7. A kind of 7. same table of changeable size top according to claim 6, it is characterised in that：Each sliding block is also set There is the positioning screw through positioning through hole and through positioning through hole, the positioning screw can arrive to the lower surface of fixed part.
8. A kind of 8. same table of changeable size top according to claim 6, it is characterised in that：The sliding block and the company Female connector is detachably connected, and the lower surface of the sliding block is provided with fixed ear base and stop nut, and the upper end of the threaded rod passes through Fixed ear base is simultaneously connected with stop nut.
9. A kind of 9. same table of changeable size top according to claim 1, it is characterised in that：The both ends of the support beam Each extend two fix bars, each fix bar is connected with a guide sleeve.
10. A kind of 10. same table of changeable size top according to claim 1, it is characterised in that：The left side supporting leg with The right supporting leg is symmetrical, and the left side supporting leg includes feet and the T-shaped support column being erected in feet, and the lower surface of the feet is set At least one slipmat is equipped with, the lower surface of the slipmat is provided with multiple grooves.