CN217390196U - Conference table lifting mechanism - Google Patents

Abstract

The utility model discloses a conference table elevating system, including actuating mechanism, locking mechanism and with locking mechanism normal running fit's lead screw, the lead screw is kept away from locking mechanism's one end and is established the connecting spline, the connecting spline cover is located in the cover, with sleeve pipe sliding fit, lead screw and sleeve pipe pass through the spline and move relatively or opposite simultaneously in the axial, change lead screw in the past under actuating mechanism one-way motion's mode, adopt the mode that motion pieces such as lead screw rise simultaneously or descend to move, its velocity of motion is faster, and stroke range is wider, has the practicality more.

Description

Conference table lifting mechanism

Technical Field

The utility model relates to an electric lift table technical field, concretely relates to conference table elevating system.

Background

Lifting table leg is because of its convenient to use, expansibility is strong, by wide application in fields such as electric lift table, intelligent office equipment such as electric lift platform and be applied to medical equipment, prior art's lifting table leg, its structure generally includes actuating mechanism and two at least nested and the flexible sleeve pipe of relative movement each other, and be located the intraductal and be provided with actuating mechanism in the most inboard sleeve, linear transmission assembly in this drive structure generally includes a lesson or two lessons lead screw, this linear transmission assembly is used for driving the pipe fitting flexible, in order to realize lifting table leg's lift action. The lifting table legs of the three-section vertical pipe in the prior art generally adopt transmission assemblies with two sections of screw rods, the self-locking capacity is strong, but the material cost of the three-section sleeve pipe is high, the assembly cost of workers is also high, the lifting table legs of the two-section vertical pipe generally adopt the transmission assembly with one section of screw rod, although the material cost is low, the assembly cost of workers is low, the shaking amount between the vertical pipes is small, but the lifting speed is slow, no matter two sections or three sections of screw rods, the mode that a driving mechanism is adopted to drive the screw rods to move in a single direction in the prior art is adopted for stretching, the energy consumption is large, and the lifting speed cannot meet specific requirements.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a conference table elevating system changes the mode of lead screw unidirectional motion under actuating mechanism in the past, adopts the mode that motion pieces such as lead screw rise simultaneously or descend to move, and its velocity of motion is faster, and the stroke scope is wider, has the practicality more.

The utility model provides a conference table elevating system, includes actuating mechanism, locking mechanism and with locking mechanism normal running fit's lead screw, the connecting spline is established to the one end that locking mechanism was kept away from to the lead screw, the connecting spline cover locate in the sleeve, with sleeve pipe sliding fit, lead screw and sleeve pipe pass through the spline and relative or opposite movement simultaneously in the axial.

Preferably, the locking mechanism comprises a first locking block and a second locking block, wherein the second locking block is arranged at the rear end of the first locking block in the axial direction.

Preferably, the second sleeve is sleeved outside the sleeve, and the top of the second sleeve is rotatably connected with the second locking block.

Preferably, the second sleeve is sleeved with a third sleeve, and the top of the third sleeve is movably connected with the first locking block.

Preferably, a cavity is arranged at the bottom of the first locking block, and the cross section of the cavity is circular.

Preferably, a gap is formed in the axial direction between the first locking block and the second locking block, a bearing and a bearing ring are arranged between the gaps, and the bearing ring is attached to the bearing.

Preferably, a bearing gasket for limiting bearing displacement is arranged on the end face of the cavity, and the bearing gasket is in threaded connection with the first locking block.

Preferably, the first locking block is sleeved on the top end of the second sleeve.

Preferably, one end of the sleeve is provided with a sleeve gasket.

Preferably, one end of the outer sleeve is provided with a sleeve ring for limiting the displacement of the sleeve.

Compared with the prior art, after adopting the structure, the utility model has the advantages of it is following:

the movement mode is that the lead screws move close to or far away from each other at the same time, which is equivalent to that the two lead screws move towards each other at the same time when the table leg is lifted, so that the running stroke of the mode is larger in the same time, and the two lead screws move towards each other at the same time when the table leg is lowered, so that the running time of the mode is shorter in the same running stroke.

2, compare in traditional unidirectional movement lead screw, its operation is more stable, has further reduced the noise of production.

Drawings

Fig. 1 is an explosion diagram of the present invention.

Fig. 2 is an enlarged view of the position A of the present invention.

Fig. 3 is a schematic view of the locking block of the present invention.

Fig. 4 is a perspective view of the present invention.

Fig. 5 is a second perspective view of the present invention.

Fig. 6 is a third perspective view of the present invention.

Fig. 7 is a fourth perspective view of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Nowadays, the lifting table is widely applied in life and work, such as lifting computer desk, lifting platform, lifting workbench, etc. due to the characteristic that the height of the lifting table can be adjusted according to actual needs. The lifting table mainly comprises an electric lifting mode and a manual lifting mode, the manual lifting mode is generally low in adjusting speed and has requirements on physical strength of users, and due to the existence of a mechanical transmission mechanism, the mechanism needs to be maintained frequently, otherwise the mechanism is easy to rust or block. If the structural design is unreasonable, there may be a potential safety hazard.

In comparison, the electric lifting table is easy and convenient to control and operate, lifting and braking can be well started and stopped through motor control, and the precision is higher than that of a manual lifting table. Current electric lift table can set up elevator motor alone at each table leg, and the cooperation lead screw structure realizes going up and down, and current elevating system is for adopting motor drive lead screw, is one-way stroke by the lead screw again, and discovery in this process, this kind of motion is not fast enough, and the use scene is more restricted.

Therefore, the utility model provides a conference table elevating system, including actuating mechanism, locking mechanism and with locking mechanism normal running fit's lead screw, locking mechanism's one end is kept away from to the lead screw is established connecting spline 41, connecting spline 41 cover is located in the cover pipe, with sleeve pipe sliding fit, the lead screw pass through spline 41 at the axial relative or opposite movement simultaneously with the sleeve pipe.

Further, in the utility model discloses in, refer to fig. 1, locking mechanism includes first latch segment 1 and second latch segment 2, and wherein second latch segment 2 sets up in first latch segment 1 rear end on the axial direction, and wherein the bottom of first latch segment 1 is equipped with a cavity 111, the cavity cross-section is circular, and wherein first latch segment 1 and second latch segment 2 are regular cube, and the setting of cavity 111 lies in placing the bearing that rotates with the lead screw cooperation, and wherein the cavity cross-section is circular specially, and its aim at adapts to the external dimension of bearing.

Further, the utility model discloses in, refer to fig. 2, be equipped with the clearance on the axial direction between first latch segment 1 and the second latch segment 2, be equipped with bearing 11 and bearing ring 13 between the clearance, bearing ring 13 and bearing laminating refer to fig. 2, with bearing 11 and cavity clearance fit during the assembly, for the stability of structure, need set up bearing ring again between bearing 11 and the cavity 111 simultaneously to ensure that the bearing can not take place the displacement and produce in disorder in the axial when the motion, and then influence the lift process of whole table leg.

Further, referring to fig. 2, a bearing gasket 12 for limiting the displacement of the bearing is arranged on the end surface of the cavity, the bearing gasket 12 is in threaded connection with the first locking block 1, the bearing is locked in the cavity of the first locking block 1 by the bearing gasket 12, a threaded hole is formed in the edge of the cavity of the first locking block 1, and the bearing gasket 12 is combined with the first locking block 1 through the threaded hole.

Further, referring to fig. 3, a second sleeve 5 is sleeved outside the sleeve, a third sleeve 6 is sleeved outside the second sleeve 5, the first locking block 1 is sleeved on the top end of the second sleeve 5, and the top of the third sleeve 6 is movably connected with the first locking block 1. The top and the second latch segment 2 of second sleeve pipe 5 rotate to be connected, because the cover pipe box is established in second sleeve pipe 5, for reinforcing configuration structural strength, sheathed tube one end sets up sleeve pipe gasket 77 and is used for cooperating the sheathed tube installation, at last, the one end of third sleeve pipe 6 set up the sleeve pipe circle 88 of restriction sleeve pipe displacement, the utility model discloses a be outermost sheathed tube mode for third sleeve pipe 6, by outer third sleeve pipe 6 to interior in proper order, second sleeve pipe 5, the elevation structure of table leg is constituteed to the sheathed tube mode.

With reference to fig. 1 to 7, the operation principle of the present invention is as follows: the third sleeve 6 is the outermost sleeve, the third sleeve 6, the second sleeve 5 and the sleeves are arranged from outside to inside in sequence, wherein the top of the third sleeve 6 is fixedly connected with the first locking block 1, meanwhile, a bearing is arranged in the first locking block 1, a screw rod is inserted into the first locking block 1, meanwhile, the second locking block 2 is connected at the rear end of the first locking block 1, the second locking block 2 is fixedly connected with the second sleeve 5, the sleeve arranged in the second sleeve 5 is in sliding connection with the screw rod through a spline 41, the spline 41 is locked at the top of the sleeve through the second locking block 2, when the screw rod is rotated through a driving motor, the screw rod rotates upwards and is fixed at the same time, the screw rod at the lower end of the spline 41 moves downwards, so that the movement of the screw rod deviating from the sleeves is generated, the stretching distance of the table legs is increased in the same time, and the same principle, when the screw rod is rotated through the driving motor, the screw is turned downwards, the splines 41 are fixed and the screw below the splines 41 is moved upwards, thus producing a face-to-face movement of the screw and the sleeve, the same resulting running time being shorter within the same distance.

Claims (10)

1. The utility model provides a conference table elevating system, includes the lead screw, its characterized in that, the lead screw is kept away from locking mechanism's one end and is established connecting splines (41), connecting splines cover is located in sleeve pipe (3), the lead screw with sleeve pipe (3) are relative or opposite movement simultaneously through the spline in the axial.

2. The conference table lifting mechanism as claimed in claim 1, wherein the screw rod is provided with a locking mechanism, the locking mechanism comprises a first locking block (1) and a second locking block (2), and the second locking block (2) is arranged at the rear end of the first locking block (1) in the axial direction.

3. A conference table lifting mechanism as claimed in claim 1, wherein said sleeve (3) is sleeved with a second sleeve (5), and the top of said second sleeve (5) is rotatably connected with the second locking block (2).

4. A conference table lifting mechanism as claimed in claim 3, wherein a third sleeve is sleeved on the second sleeve (5), and the top of the third sleeve (6) is movably connected with the first locking block (1).

5. A conference table lifting mechanism as claimed in claim 2, wherein the first locking piece is provided with a cavity (111) at its bottom, said cavity being circular in cross-section.

6. A conference table lifting mechanism as claimed in claim 2, wherein a gap is provided in the axial direction between the first locking block and the second locking block, a bearing and bearing ring (13) is provided between the gaps, and the bearing ring (13) is attached to the bearing (11).

7. A conference table lifting mechanism according to claim 5, characterized in that a bearing washer (12) limiting the bearing displacement is arranged on the end surface of the cavity, and the bearing washer (12) is in threaded connection with the first locking block (1).

8. A conference table lifting mechanism as claimed in claim 2, wherein the first locking block (1) is sleeved on top of the second sleeve (5).

9. A conference table lifting mechanism as claimed in claim 1, wherein one end of the sleeve is provided with a sleeve gasket (7).

10. A conference table lifting mechanism as claimed in claim 4, wherein one end of the third sleeve is provided with a sleeve collar (8) which limits the displacement of the second sleeve.

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