TWI643582B - Table lifting structure - Google Patents

Abstract

The invention relates to a table lifting structure, comprising a base, a lower rod body, an upper rod body, a table board unit, a positioning device, and the lower rod body has a first hollow portion, the first hollow portion has a relative The inner wall of the upper rod body has a second hollow portion, the upper rod body can be inserted into the first hollow portion and corresponding to the lower and lower parts of the lower rod body, and the through holes are disposed on opposite sides; The positioning device comprises a positioning seat, a scroll spring, a working cable and a control button. The positioning seat is arranged at the bottom of the upper rod body, and comprises two shells which can be oppositely combined. a two-cylinder body, an actuating rod and an elastic body; the scroll spring is disposed on the casing, one end is engaged with the top end of the lower rod body, and one end of the moving cable is engaged with the actuating rod of the positioning seat, and the other end portion is Engaged with the control button, and the control button can be used to move the moving cable, the actuating rod, and the latch body to cause the card body to be stuck or not to be pulled down; thereby, the present invention can have better positioning stability and convenient operation.

Description

Table lifting structure

The invention relates to a table lifting structure, which mainly relates to a lifting structure capable of adjusting the height of the table without steps and having better operation convenience and positioning stability.

The table mainly has a table board, and the table legs are arranged under the table board, and the table board can be supported by the table legs at a suitable height position corresponding to the ground. However, due to different user heights and requirements, the table height is currently designed, for example, The foot of the table is a telescopic rod body, and after adjusting the appropriate length of the telescopic rod body, the knob is rotated to tighten the positioning of the telescopic rod body. However, the foregoing adjustment method must be laboriously supported by the table board and then tightened by the knob to fix the operation. Inconvenience is missing.

For example, the tables of TWM490263, TWM428714, and TWM362625 are equipped with a gas pressure bar at the table legs, and the gas pressure bar can be controlled to adjust the height of the table. However, the high cost of the high-pressure air pressure bar greatly increases the cost of the table.

For example, in the case of TW Announcement No. 504,983, the inner and outer tubes of the table are combined with the scroll spring, and a socket is disposed in the inner tube. The bearing is provided with a spring piece and a sliding piece, and the one end of the sliding piece is The tip end of the outer tube can abut against the inner wall of the outer tube, and the sliding piece is abutted by a ram, so that when the ejector pin is pressed down, one side of the sliding piece can not abut against the inner wall of the outer tube, and The outer tube can adjust the combined length, and the scroll spring can make the table plate easy to rise by its elastic force, and then adjust the release rod to release the top rod so that the sliding piece can be held by the elastic piece to make one end and the inner wall of the outer tube Fit positioning.

However, the ejector of the foregoing structure is not easy to maintain the downward pressure against the anti-slip sheet, and only one side of the anti-slip sheet abuts against the inner wall of the outer tube, which will result in a lack of stability of the positioning and positioning.

SUMMARY OF THE INVENTION The object of the present invention is to provide a lifting structure that can adjust the angle of a table and has better operational convenience and positioning stability.

The present invention includes a base, a lower rod body, an upper rod body, a table unit, and a positioning device. The lower rod body has a first hollow portion in the center, and the first hollow portion has two opposite inner walls; The upper part of the upper rod body has a second hollow portion, the upper rod body can be inserted into the first hollow portion and corresponding to the upper and lower parts of the lower rod body, and the through holes are arranged on opposite sides; the table board unit and the upper rod body The positioning device includes a positioning seat, a scroll spring, a working cable, and a control button. The positioning seat is disposed at the bottom of the upper rod body, and includes two shells that can be oppositely combined, a two-carcass body, An actuating rod and an elastic body, the two shells can be inserted into the second hollow portion of the upper rod body, the lower portion has a joint portion protruding from the bottom of the upper rod body, and the two shells have a chamber, the capacity The two sides of the chamber are respectively provided with one side guide groove corresponding to the through hole position of the upper rod body; the card body is respectively disposed at the position of the two side guide grooves, the outer end has a latching portion, and the other end is provided with a pivoting portion; The actuating rod is disposed in the chamber and engages a pivot post, and the pivot post is pivotally connected to the pivoting portion of the two-carcass body; The elastic body provides the actuating rod to actuate the elastic force, and the actuating rod can be pulled down by the elastic force of the elastic body so that the latching portion is located at a position which is more convex and can be engaged with the inner wall of the lower rod; and the scroll spring is disposed on the shell The joint position of the body is one end engaged with the top end of the lower rod body; the one end of the moving cable is engaged with the actuating rod of the positioning seat, and the other end is engaged with the control button, and the control button can be used to move the moving cable, the actuating rod and the locking body. The displacement allows the cassette to be in a non-click position.

Further, the housing is provided with a straight guiding groove in the upper and lower directions; the actuating rod is disposed directly at the groove position of the chamber, and a shaft hole for engaging the pivot column is disposed at the center, and the two ends of the pivot column are located straight The position of the guide groove can be moved up and down along the straight guide groove, and the elastic body of the positioning device is a telescopic spring, which is disposed in the chamber of the second casing corresponding to the lower position of the actuating rod, and the two ends respectively are respectively connected with the shell and the actuating rod Engage.

Further, the table unit has an engaging frame and a table. The side of the engaging frame has a joint portion fixed to the upper rod body, and a slot is disposed on one side, and a through hole is arranged under the slot, and the insert hole is inserted The pivoting portion is disposed on the side of the slot, and the control button is disposed at the slot position of the socket, and one side has a pivoting portion that can be inserted into the slot and pivotally connected to the slot pivoting portion, and the other side has a convex portion The dialing portion on the outer side of the slot is further provided with one end of the engaging slot and the cooperative moving cable at the control button.

The invention can hold the control button to make the card body in the un-clamped state, so that the upper rod body can be moved down and folded, and when the downward movement, the scroll spring can be stretched to provide the upper and lower rod bodies to be elastic and released. When the control button is pressed, the actuating rod can be moved down by the elastic body of the positioning seat, and the latching portion of the two-carcass body protrudes from the latching position and the inner wall of the first hollow portion of the lower rod body simultaneously abuts The positioning can have better positioning stability, and the control button can make the upper body can be automatically moved upward by the elastic force of the spiral spring when the control button is not clicked, which can be adjusted better. Convenience effect.

Referring to Figures 1 to 5, the present invention includes a base 1, a lower rod body 2, an upper rod body 3, a table unit 4, a positioning device 5, and a set of covers 6, which can be placed on the ground and below. The wheel body 11 is provided with a joint portion 12 at the top thereof, and the joint portion 12 has an engagement groove 121.

The lower rod body 2 is a hollow square tube body having a first hollow portion 21 at the center, the first hollow portion 21 has two opposite inner walls 211, and the lower rod body 2 is inserted under the joint portion of the joint groove 121 and the base 1 12 is joined, and an engagement hole 22 and a locking hole 23 are further disposed on the upper side.

The upper rod body 3 is a hollow tube body, and has a second hollow portion 31 in the center. The upper rod body 3 can be inserted into the first hollow portion 21 and corresponding to the lower and lower parts of the lower rod body 2, and is disposed on the opposite sides. The through hole 32 is further provided with a locking hole 33 at the top end of the upper rod 3, a group connecting hole 34 at the lower side, and an engaging hole 30 above the second hollow portion 31.

The table unit 4 is engaged with the upper rod 3, and has an engaging frame 41, a table 42 and a set of seats 43. The engaging frame 41 has an engaging portion 411 on one side and is provided with an engaging hole 412 and is engaged by the engaging member 416 and The engaging hole 30 of the rod body 3 is fixedly fixed, and the slot 413 is disposed on one side of the slot 413. The through hole 414 is disposed under the slot 413. The pivoting portion 415 is further disposed on the side of the slot 413. The upper part of the sleeve 43 is disposed on the side of the sleeve 43 to fit over the sleeve portion 431 of the upper rod body 3, and the upper portion is disposed to cover the sleeve portion 432 above the joint frame 41.

The positioning device 5 includes a positioning seat 51, a scroll spring 56, a working cable 57, and a control button 58. The positioning seat 51 is disposed at the bottom of the upper rod body 3, and includes two housings 52 and two cards that can be combined with each other. The shank body 53 , an actuating rod 54 , an elastic body 55 , the two housings 52 can be inserted into the second hollow portion 31 of the upper rod body 3 , and the engaging holes 520 are further provided and the engaging holes 34 , 520 are inserted by the engaging elements 528 . The assembly is disposed below the upper rod 3, and the lower portion of the housing 52 has a joint portion 521 protruding from the bottom of the upper rod 3. The joint portion 521 is provided with a shaft 522, and the second housing 52 has a chamber 523. The two sides of the chamber 523 are respectively provided with one side guide groove 524 corresponding to the position of the through hole 32 of the upper rod body 3, and the vertical guide groove 525 is disposed at the center in the upper and lower directions, and is disposed in the upper and lower directions of the center of the chamber 523. The two latching bodies 53 are disposed at the two side guide slots 524, the outer end has a toothed latching portion 531, and the other end is provided with a pivoting portion. 532; The actuating rod 54 is disposed at a position of the recess 526 of the chamber 523, and a shaft hole 541 is disposed at the center. The shaft hole 541 is coupled to a pivot post 542, the pivot post 542 and the second The pivoting portion 532 of the body 53 is pivotally connected, and the two ends of the pivoting member 542 are located at the position of the straight guiding groove 525 and can be moved up and down along the straight guiding groove 525. The elastic body 55 is a telescopic spring and is disposed on the second housing 52. The chamber 523 corresponds to the lower position of the actuating rod 54, and the two end portions 551, 552 are respectively engaged with the housing 52 and the actuating rod 54, and the actuating rod 54 can be pulled down by the elastic force of the elastic body 55 to drive the pivot post 542 and the second The displacement of the latch body 53 causes the latch portion 531 to be located at a more convex click position.

The wrap spring 56 is disposed at the joint portion 521 of the housing 52 of the positioning base 51, and has an engaging hole 561 at one end and is engaged with the engaging hole 22 at the top end of the lower rod 2 by the engaging member 562.

The one end portion 571 of the operating cable 57 is engaged with the actuating lever 54 of the positioning base 51, and the other end portion 572 is inserted into the second hollow portion 31 of the rod body 3 and the through hole 414 of the engaging frame 41 to engage with the control knob 58.

The control button 58 is disposed at the position of the slot 413 of the binding frame 41, and has a pivoting portion 581 which can be inserted into the slot 413 and pivotally connected to the pivoting portion 415 of the slot 413 by the pivoting member 584, and the other side has The latching portion 582 protruding from the outside of the slot 413 is further provided with the engaging slot 583 and the one end portion 572 of the cooperative moving cable 57, and the dialing portion 582 of the control knob 58 can be driven by the action cable 57. The actuating lever 54 and the pivot post 542 are moved up, and the two latching bodies 53 are folded to position the latching portion 531 in the non-clicking position.

The sleeve 6 is sleeved on the top end of the lower rod body 2, and the joint hole 61 is disposed corresponding to the top joint hole 22 of the lower rod body 2. The through hole 62 is disposed corresponding to the locking hole 23 of the lower rod body 2, and the sleeve cover 6 can be fitted. The top end of the lower rod body 2 is assembled by the engaging elements 562, the engaging holes 62, the lower rod body 2, the engaging holes 22, 561, 61 of the spiral spring piece 56, and the cover 6 can lift the upper and lower rods 3, 2 joint overall texture.

When the assembly of the present invention is assembled, the housing 52 of the positioning base 51 is inserted into the lower portion of the second hollow portion 31 of the upper rod 3 to be assembled with the upper rod 3, and the latch portion 531 of the second latch body 53 protrudes from the upper rod. The outer side of the through hole 32 on the two sides of the body 3, and the end of the scroll spring 56 is located outside the upper rod body 3, and the top end of the first hollow portion 21 of the lower rod body 2 is fitted over the bottom end of the rod body 3 and the scroll The end of the reed 56 is engaged by the engaging elements 562, the insertion holes 6, the lower rods 2, and the engagement holes 22, 561, 61 of the spiral springs 56.

Referring to FIG. 6 and FIG. 7 , the present invention can hold the control button 58 upward to lock the latch body 53 in an unengaged state, and the latch portion 531 and the inner wall 211 of the lower rod 2 are not engaged, so that the upper rod 3 is The folding spring can be moved downward, and the scroll spring 56 can be stretched to provide the upper and lower shafts 3 and 2 to be elastically elastic. When the control button 58 is released, the positioning seat 51 can be made as shown in FIGS. The elastic body 55 moves the actuating rod 54 downward so that the latching portion 531 of the second latch body 53 protrudes from the latching position at the same time and abuts against the two inner side walls 211 of the first hollow portion 21 of the lower rod body 2 at the same time. The positioning of the control button 58 allows the upper body 3 to be automatically moved up by the elastic force of the spiral spring 56 when the latch body 53 is not clamped to the lower body 2. , can have better adjustment convenience.

In addition, referring to FIG. 8 , the present invention can make the upper and lower shafts 2 pass through the through holes 62 of the cover 6 when the upper and lower rods 2 are in the folded state, and the rods 3 on the locking holes 23 of the lower rods 2 The locking hole 33 is locked in the folded state to facilitate the box transportation, and the upper and lower rods 2 can be prevented from being unfolded, and the locking member 63 can be removed after the user purchases, so that the upper and lower rods 2 can be restored. Adjust the combined length function, which can have better transportation, storage and convenience.

Therefore, according to the above, the invention can be tightly pressed by the two side latch bodies and the inner wall of the lower rod body, which can have better positioning stability function, and the control knob of the present invention can make the two-carcass body At the same time, the displacement is out of the jam state, and the operation and convenience are better. The foregoing embodiments are illustrative of the invention and are not intended to be limiting, and equivalent changes in accordance with the spirit of the invention are also within the scope of the invention.

1‧‧‧Base

11‧‧‧ wheel body

12‧‧‧ joints

121‧‧‧ joint groove

2‧‧‧ Lower body

21‧‧‧The first hollow

211‧‧‧ inner wall

22‧‧‧Join hole

23‧‧‧Lock hole

3‧‧‧Upper body

30‧‧‧Join hole

31‧‧‧Second hollow

32‧‧‧through holes

33‧‧‧Lock hole

34‧‧‧Group holes

4‧‧‧Table unit

41‧‧‧Joint frame

411‧‧‧ joints

412‧‧‧Join hole

413‧‧‧ slots

414‧‧‧through hole

415‧‧‧ pivotal department

416‧‧‧ Engagement components

42‧‧‧Table board

43‧‧‧seat

431‧‧‧Bottom socket

432‧‧‧上上部

5‧‧‧ Positioning device

51‧‧‧ Positioning Block

52‧‧‧ housing

520‧‧‧Join hole

521‧‧‧ joints

522‧‧‧ shaft

523‧‧ ‧ room

524‧‧‧ side guide

525‧‧‧Direct channel

526‧‧‧ Groove

527‧‧‧ Groove

528‧‧‧ Engagement components

53‧‧‧Carcass

531‧‧Card Department

532‧‧‧ pivotal department

54‧‧‧Action rod

541‧‧‧Axis hole

542‧‧‧ pivot

55‧‧‧ Elastomers

551‧‧‧End

552‧‧‧End

56‧‧‧ Scroll reed

561‧‧‧Join hole

562‧‧‧ Engagement components

57‧‧‧ actuation

571‧‧‧End

572‧‧‧End

58‧‧‧Control button

581‧‧‧ pivotal department

582‧‧‧Driving Department

583‧‧‧ joint slot

584‧‧‧ pivotal components

6 ‧ ‧ cover

61‧‧‧Join hole

62‧‧‧Perforation

63‧‧‧Locking components

Figure 1 is an exploded view of a portion of the components of the present invention.

Figure 2 is an exploded view of a portion of the components of the present invention.

Figure 3 is a schematic view of the combination and lifting operation of the present invention.

Figure 4 is a cross-sectional view showing the state in which the lower rod body is positioned in the upper side of the present invention.

Figure 5 is a cross-sectional view of the lower side of the present invention in which the lower rod body is positioned in the state of the cassette.

Figure 6 is a schematic cross-sectional view of the toggle control button of the present invention.

Figure 7 is another schematic cross-sectional view of the toggle control button of the present invention.

Figure 8 is a schematic view showing the locked upper and lower rod bodies in a folded state according to the present invention.

Claims (9)

The table body lifting structure comprises: a lower rod body having a first hollow portion at the center, the first hollow portion having two opposite inner walls; and an upper rod body having a second hollow portion at the center, the upper rod body being Interspersed in the first hollow portion and corresponding to the upper and lower displacement of the lower rod body, and through holes are provided on opposite sides; a table unit is engaged with the upper rod body; a positioning device includes a positioning seat and a spiral spring The locating seat is disposed at the bottom of the upper rod body, and comprises two shells which can be oppositely combined, a two-carcass body, an actuating rod and an elastic body, and the two shells can be inserted and assembled. In the second hollow portion of the upper rod body, the lower portion has a joint portion protruding from the bottom of the upper rod body, and the two shells have a chamber, and the two sides of the chamber are respectively provided with a side guide corresponding to the through hole positions of the upper rod body. a slot; the latch body is respectively disposed at the position of the two side guide slots, the outer end has a latching portion, and the other end is provided with a pivoting portion; and the actuating rod is disposed in the housing and engages a pivot post, the pivot post and the pivot post The pivoting portion of the two-carcass is pivotally connected; the elastic body provides the actuating lever to actuate and actuate The elastic portion of the elastic body can be located at a position that is more convex and can be engaged with the inner wall of the lower rod; and the scroll spring is disposed at the joint portion of the housing, and one end is engaged with the top end of the lower rod body. And one end of the moving cable is engaged with the actuating rod of the positioning seat, and the other end is engaged with the control button, and the control button can be moved by the action cable, the actuating rod and the latch body so that the latch portion can be located at the non-clamping position; The housing is provided with a straight guide groove in the upper and lower directions; the actuating rod is disposed at a position of the groove of the chamber, and a shaft hole for engaging the pivot column is disposed at the center, and the two ends of the pivot column are located in the straight guide groove The position can be moved up and down along the straight guide groove. The table body lifting structure according to claim 1, wherein the elastic body of the positioning device is a telescopic spring disposed in a position of the second housing corresponding to the lower position of the actuating rod, and the two ends are respectively engaged with the housing and the actuating rod. The table lifting structure according to claim 1, further comprising a base, the base is slidable, and an engaging portion is disposed on the upper portion, the engaging portion has an engaging groove, and the lower engaging portion is inserted into the engaging groove and the base. Joint bonding. The table lifting structure according to claim 1, wherein the table unit has an engaging frame and a table, and the engaging portion has a joint portion fixed to the upper rod body and a slot is disposed on one side. A through hole is disposed under the slot, and a pivoting portion is disposed on the side of the slot, and the control button is disposed at a slot position of the joint frame, and one side is pivotally connected to the slot pivoting portion of the slot. The connecting portion has a latching portion protruding from the outside of the slot, and the control button is provided with one end of the engaging slot and the cooperative moving cable. The table lifting structure according to claim 4, wherein the table unit further comprises a set of seats, the side of the set can be sleeved under the upper part of the rod body, and the upper part is arranged to cover the upper part of the joint frame. Socket. The table body lifting structure according to claim 1, wherein the housing is provided with a groove for accommodating the working cable and the actuating rod in the upper and lower directions of the central portion of the chamber. The table body lifting structure according to claim 1, further comprising a cover sleeve disposed at a top end position of the lower rod body. The table body lifting structure according to claim 7, wherein the lower rod body is provided with an engaging hole, the scroll spring end is provided with an engaging hole, and the sleeve is provided with an engaging hole, and the cover is provided. The top end of the lower rod body can be sleeved and assembled by the engaging elements of the engaging member, the lower rod body and the scroll spring. The table body lifting structure according to claim 7, wherein a locking hole is disposed above the lower rod body, and a locking hole is disposed at a top end of the upper rod body, and the sleeve is provided with a perforation corresponding to the locking hole position of the lower rod body. The upper and lower rod bodies can be inserted into the perforation of the sleeve, the locking hole of the lower rod body, and the locking hole of the upper rod body when the upper and lower rod bodies are in the folded state.