CN216649443U

CN216649443U - Electric push rod capable of lifting and lowering desk top with low noise

Info

Publication number: CN216649443U
Application number: CN202123142837.4U
Authority: CN
Inventors: 朱孝飞
Original assignee: Wuxi Jiedino Automation Equipment Co ltd
Current assignee: Wuxi Jiedino Automation Equipment Co ltd
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2022-05-31
Anticipated expiration: 2031-12-14

Abstract

The utility model relates to the technical field of electric push rods and discloses a low-noise lifting electric push rod for a table top, which comprises an outer sleeve and an inner sleeve, wherein the inner sleeve is sleeved in the outer sleeve in a sliding manner, a screw rod is rotatably arranged at the bottom of the inner surface of the outer sleeve through a first bearing, a motor is fixedly arranged on the inner side wall of the outer sleeve, a worm is fixedly arranged at the output end of the motor, a worm wheel is fixedly sleeved at the lower end of the screw rod and meshed with the screw rod, a sliding block is fixedly sleeved at the bottom of the inner sleeve, the sliding block is sleeved on the outer side of the screw rod in a threaded manner, an oil tank is fixedly arranged at the lower end of the outer sleeve, the bottom of the oil tank is communicated with an oil pipe, an annular plate is fixedly arranged at the lower end of the inner surface of the oil pipe, and an oil outlet mechanism is arranged between the oil pipe and the screw rod. The utility model changes the surface contact between the sleeves into point contact, and reduces the noise generated when the electric push rod works in a lifting way by matching with the sound insulation part.

Description

Electric push rod capable of lifting and lowering desk top with low noise

Technical Field

The utility model relates to the technical field of electric push rods, in particular to a table-top electric push rod capable of lifting with low noise.

Background

An electric push rod is also called a linear driver, and mainly relates to a novel linear actuating mechanism composed of a motor push rod, a control device and other mechanisms.

In the process of implementing the present application, the inventor finds that at least the following problem exists in the technology, when the current electric push rod is lifted, due to the friction between the inner sleeves and the operation of the motor, the lifting generates large noise.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that friction between sleeves inside an electric push rod and the work of a motor cause large noise during lifting, and provides a table electric push rod capable of lifting with low noise.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a low-noise lifting electric push rod for a table comprises an outer sleeve and an inner sleeve sleeved in the outer sleeve in a sliding manner, wherein a screw rod is rotatably arranged at the bottom of the inner surface of the outer sleeve through a first bearing,

the inner side wall of the outer sleeve is fixedly provided with a motor, the output end of the motor is fixedly provided with a worm,

the lower end of the screw rod is fixedly sleeved with a worm wheel which is meshed with the screw rod,

the bottom of the inner sleeve is fixedly sleeved with a slide block, the slide block is sleeved outside the screw rod in a threaded manner,

the lower end of the outer sleeve is fixedly provided with an oil tank, the bottom of the oil tank is communicated with an oil pipe,

the lower end of the inner surface of the oil pipe is fixedly provided with an annular plate, and an oil outlet mechanism is arranged between the oil pipe and the screw rod.

Preferably, the outer sleeve and the inner sleeve are sleeved in the outer sleeve in a sliding manner, and the inner sleeve is characterized in that a screw rod is rotatably arranged at the bottom of the inner surface of the outer sleeve through a first bearing,

Preferably, the fixed cover in inner wall upper end of outer tube is equipped with the lantern ring, the internal surface of lantern ring rolls inlays and is equipped with the ball that a plurality of intervals set up, and is a plurality of the ball all is connected with interior sheathed tube lateral wall contact.

Preferably, a sliding rod is fixedly arranged between the lantern ring and the bottom of the inner surface of the outer sleeve, a transverse plate is slidably sleeved on the rod wall of the sliding rod, and the transverse plate is fixedly sleeved at the lower end of the inner sleeve.

Preferably, soundproof cotton is fixedly arranged at two ends of the inner surface of the lantern ring in a penetrating mode, and the soundproof cotton is wrapped and arranged on the outer side of the inner sleeve.

Preferably, the mechanism of producing oil includes first push pedal, the fixed cover of first push pedal is located the outside of worm, the top contact of annular slab is connected with the inside baffle of seting up the oil outlet, the fixed push rod that is equipped with in right side of baffle, the right-hand member of push rod passes oil pipe and fixed cover and is equipped with the wedge, the pole wall cover of push rod is equipped with the spring, the both ends of spring respectively with baffle and oil pipe fixed connection.

Preferably, the mechanism that produces oil includes the second push pedal, the fixed cover of second push pedal is located the outside of worm, the inside of crown plate rotates the cover through the second bearing and is equipped with the bull stick, the fixed cover in upper end of bull stick is equipped with the apron, apron and crown plate contact connection, the fixed cover in lower extreme of bull stick is equipped with the bull stick, the lower pot head of bull stick is equipped with the torsional spring, the both ends of torsional spring respectively with crown plate and bull plate fixed connection.

Compared with the prior art, the utility model provides a low-noise lifting electric push rod for a table, which has the following beneficial effects:

1. this table electric putter that table that low noise goes up and down through the lantern ring, ball and the soundproof cotton that are equipped with, changes the face contact between interior sleeve pipe and the outer tube into the point contact, reduces the noise that two sleeve pipe relative slip sent when electric putter uses.

2. This table electric putter that low noise goes up and down through worm, worm wheel, motor, oil tank, oil pipe, annular plate and the mechanism that produces oil that is equipped with, can be at electric putter lift in-process, interrupted to worm and worm wheel meshing department dropwise add lubricating oil, improve the smooth and easy nature of transmission in-process to reduce the noise that sends between the push rod during operation internal transmission component.

The device has the advantages that the operation is convenient, the surface contact between the sleeves is changed into point contact, and the noise generated when the electric push rod works in a lifting mode is reduced by matching with the sound insulation component.

Drawings

FIG. 1 is a schematic structural view of a low-noise lifting electric push rod for a desk according to the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is an enlarged view of a portion B of FIG. 2;

FIG. 4 is an enlarged view of a portion C of FIG. 3;

FIG. 5 is a schematic structural view of another embodiment of a low-noise lifting electric putter for a table top according to the present invention;

fig. 6 is an enlarged view of a portion D of fig. 5.

In the figure: the device comprises an outer sleeve 1, an inner sleeve 2, a screw rod 3, a motor 4, a worm 5, a worm wheel 6, a sliding block 7, an oil tank 8, an oil pipe 9, an annular plate 10, a sound insulation plate 11, a lantern ring 12, a ball 13, a sliding rod 14, a transverse plate 15, sound insulation cotton 16, a first push plate 17, a baffle 18, a push rod 19, a wedge-shaped block 20, a second push plate 21, a rotating rod 22, a cover plate 23, a rotating plate 24, a torsion spring 25 and a spring 26.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1

Referring to fig. 1 and 3, a table electric putter that low noise goes up and down, locate the inside interior sleeve pipe 2 of outer tube 1 including outer tube 1 and slip cap, the internal surface bottom of outer tube 1 rotates through first bearing and is equipped with screw rod 3, the fixed motor 4 that is equipped with of inside wall of outer tube 1, the output end of motor 4 is fixed and is equipped with worm 5, the fixed cover of lower extreme of screw rod 3 is equipped with worm wheel 6, worm wheel 6 and the meshing of screw rod 3, drive the meshing of worm wheel 6 and worm 5 through motor 4, and drive screw rod 3 and rotate, accomplish electric putter's lifting work.

Referring to fig. 1-3, a sound insulation plate 11 is fixedly sleeved at the lower end inside the outer sleeve 1, the screw 3, the motor 4 and the oil pipe 9 are slidably arranged inside the sound insulation plate 11, and noise generated when parts inside the outer sleeve 1 work is absorbed through the sound insulation plate 11, so that the noise emission is reduced;

the fixed cover in inner wall upper end of outer tube 1 is equipped with lantern ring 12, and the internal surface of lantern ring 12 rolls to inlay the ball 13 that is equipped with a plurality of intervals and sets up, and a plurality of balls 13 all are connected with interior sleeve pipe 2's lateral wall contact, through ball 13's setting, change the face contact between interior sleeve pipe 2 and the outer tube 1 into the point contact, reduce the noise that takes place when two sleeve pipe relative sliding.

Referring to fig. 1, a slide block 7 is fixedly sleeved at the bottom of an inner sleeve 2, the slide block 7 is sleeved outside a screw rod 3 in a threaded manner, a slide rod 14 is fixedly arranged between a lantern ring 12 and the bottom of the inner surface of the outer sleeve 1, a transverse plate 15 is slidably sleeved on the rod wall of the slide rod 14, the transverse plate 15 is fixedly sleeved at the lower end of the inner sleeve 2, and the inner sleeve 2 and the slide block 7 are limited in sliding through relative sliding between the transverse plate 15 and the slide rod 14.

Referring to fig. 1 and 4, an oil tank 8 is fixedly arranged at the lower end of the outer sleeve 1, an oil pipe 9 is communicated with the bottom of the oil tank 8, and lubricating oil is stored through the oil tank 8;

the lower end of the inner surface of the oil pipe 9 is fixedly provided with an annular plate 10, an oil outlet mechanism is arranged between the oil pipe 9 and the screw rod 3, the oil outlet mechanism comprises a first push plate 17, the first push plate 17 is fixedly sleeved on the outer side of the worm 5, the top of the annular plate 10 is in contact connection with a baffle plate 18 with an oil outlet hole formed therein, the right side of the baffle plate 18 is fixedly provided with a push rod 19, the right end of the push rod 19 penetrates through the oil pipe 9 and is fixedly sleeved with a wedge block 20, and the wedge block is adopted to enable the first push plate 17 to transversely push the push rod 19 and the baffle plate 18;

the rod wall cover of push rod 19 is equipped with spring 26, and spring 26's both ends respectively with baffle 19 and oil pipe 9 fixed connection, adopt spring 26's setting, can make lubricating oil carry out intermittent type nature dropwise add.

In the utility model, when the electric push rod goes up and down, the motor 4 is started to drive the worm 5 to rotate, the worm 5 is meshed with the worm wheel 6, so that the screw rod 3 rotates, the slide block 7 on the rod wall drives the inner sleeve 2 to slide under the limit sliding of the slide rod 14, the inner sleeve 2 is in contact with the plurality of balls 13 in the sliding process, the original surface contact between the inner sleeve 2 and the outer sleeve 1 is changed into point contact, the noise generated in sliding friction is reduced, the noise is absorbed by matching with the soundproof cotton 16, in the continuous rotating process of the worm 5, the lubricating oil in the oil tank 8 flows into the oil pipe 8 and is blocked by matching between the baffle 18 and the annular plate 10, when the worm 5 drives the first push plate 17 to rotate, and the first push plate 17 is in contact with the wedge block 20, the wedge block 20 is pushed to drive the push rod 19 and the baffle 18 to push transversely, make the inside oil outlet of baffle 18 and the same vertical line of the inside hole of annular plate 10 for lubricating oil can drop to worm 5 and worm wheel 6 meshing play, improve the meshing smoothness nature, thereby promote through the contact of discontinuity between first push pedal 17 and the wedge 20, make the dropwise add of lubricating oil interval nature, reduce the noise that sends among the transmission process.

Example 2

Example 2 is the same as example 1 except that the oil discharging mechanism is provided, as compared with example 1.

Referring to fig. 5-6, an electric push rod for a table top with low noise and lifting, wherein an oil tank 8 is fixedly arranged at the lower end of an outer sleeve 1, and lubricating oil is stored through the oil tank 8;

an oil pipe 9 is communicated with the bottom of the oil tank 8, an annular plate 10 is fixedly arranged at the lower end of the inner surface of the oil pipe 9, an oil outlet mechanism is arranged between the oil pipe 9 and the screw rod 3 and comprises a second push plate 21, the second push plate 21 is fixedly sleeved on the outer side of the worm 5, a rotating rod 22 is rotatably sleeved in the annular plate 10 through a second bearing, a cover plate 23 is fixedly sleeved at the upper end of the rotating rod 22, the cover plate 23 is in contact connection with the annular plate 10, and a rotating plate 24 is fixedly sleeved at the lower end of the rotating rod 22, so that the second push plate 21 can indirectly push the rotating plate 24, and indirect dripping of lubricating oil is performed;

the lower pot head of bull stick 22 is equipped with torsional spring 25, and the both ends of torsional spring 25 respectively with annular plate 10 and commentaries on classics board 24 fixed connection, through torsional spring 25's setting, can make commentaries on classics board 24 reply to initial position fast after the thrust.

In the utility model, when the electric push rod is lifted, the motor 4 is started to drive the worm 5 to rotate, the worm 5 is meshed with the worm wheel 6, so that the screw rod 3 rotates, the slide block 7 on the rod wall drives the inner sleeve 2 to slide under the limit sliding of the slide rod 14, the inner sleeve 2 is contacted with the plurality of balls 13 in the sliding process, the original surface contact between the inner sleeve 2 and the outer sleeve 1 is changed into point contact, the noise generated in sliding friction is reduced, the noise is absorbed by matching with the soundproof cotton 16, in the continuous rotating process of the worm 5, the lubricating oil in the oil tank 8 flows into the oil pipe 8 and is blocked by matching between the cover plate 23 and the annular plate 10, when the worm 5 drives the second push plate 21 to rotate, the second push plate 21 is contacted with the rotating plate 24, so that the rotating plate 24 is pushed to drive the rotating rods 22 and 23 to rotate, make torsional spring 25 twist reverse the time apron 23 expose annular plate 10 for lubricating oil accessible annular plate 10 dropwise add to worm 5 and worm wheel 6 meshing department, through torsional spring 25's setting, second push pedal 21 carries out indirect contact with commentaries on classics board 24, makes bull stick 22 drive the rotation of apron 23 indirection, accomplishes the interval nature dropwise add of lubricating oil, reduces the noise that the transmission in-process sent.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A low-noise lifting electric push rod for a table comprises an outer sleeve (1) and an inner sleeve (2) sleeved in the outer sleeve (1) in a sliding manner, and is characterized in that a screw (3) is rotatably arranged at the bottom of the inner surface of the outer sleeve (1) through a first bearing,

a motor (4) is fixedly arranged on the inner side wall of the outer sleeve (1), a worm (5) is fixedly arranged at the output end of the motor (4),

the lower end of the screw rod (3) is fixedly sleeved with a worm wheel (6), the worm wheel (6) is meshed with the screw rod (3),

the bottom of the inner sleeve (2) is fixedly sleeved with a sliding block (7), the sliding block (7) is sleeved on the outer side of the screw rod (3) in a threaded manner,

an oil tank (8) is fixedly arranged at the lower end of the outer sleeve (1), the bottom of the oil tank (8) is communicated with an oil pipe (9),

the oil pipe is characterized in that an annular plate (10) is fixedly arranged at the lower end of the inner surface of the oil pipe (9), and an oil outlet mechanism is arranged between the oil pipe (9) and the screw rod (3).

2. A low noise lifting electric push rod for table top as claimed in claim 1, wherein the inner lower end of the outer sleeve (1) is fixed with a sound insulation board (11), and the screw (3), the motor (4) and the oil pipe (9) are slidably disposed through the sound insulation board (11).

3. A low noise lifting electric push rod for table top as claimed in claim 1, wherein the inner wall of the outer sleeve (1) is fixed with a sleeve ring (12) at the upper end, the inner surface of the sleeve ring (12) is embedded with a plurality of balls (13) at intervals, and the plurality of balls (13) are connected with the outer side wall of the inner sleeve (2) in a contacting manner.

4. A low-noise lifting electric push rod for a table top as claimed in claim 3, wherein a slide rod (14) is fixedly arranged between the sleeve ring (12) and the bottom of the inner surface of the outer sleeve (1), a horizontal plate (15) is slidably sleeved on the rod wall of the slide rod (14), and the horizontal plate (15) is fixedly sleeved on the lower end of the inner sleeve (2).

5. A low-noise lifting electric push rod for table top as claimed in claim 3, wherein sound-proof cotton (16) is fixedly arranged at both ends of the inner surface of the sleeve ring (12), and the sound-proof cotton (16) is wrapped and arranged outside the inner sleeve (2).

6. The electric push rod for the table top with the low noise rise and fall as recited in claim 1, wherein the oil outlet mechanism comprises a first push plate (17), the first push plate (17) is fixedly sleeved on the outer side of the worm (5), the top of the annular plate (10) is in contact connection with a baffle (18) internally provided with an oil outlet, a push rod (19) is fixedly arranged on the right side of the baffle (18), the right end of the push rod (19) penetrates through the oil pipe (9) and is fixedly sleeved with a wedge block (20), a spring (26) is sleeved on the rod wall of the push rod (19), and two ends of the spring (26) are respectively fixedly connected with the baffle (18) and the oil pipe (9).

7. The electric push rod for the table top with low noise lifting as claimed in claim 1, wherein the oil outlet mechanism comprises a second push plate (21), the second push plate (21) is fixedly sleeved on the outer side of the worm (5), the inner part of the annular plate (10) is rotatably sleeved with a rotating rod (22) through a second bearing, the upper end of the rotating rod (22) is fixedly sleeved with a cover plate (23), the cover plate (23) is in contact connection with the annular plate (10), the lower end of the rotating rod (22) is fixedly sleeved with a rotating plate (24), the lower end of the rotating rod (22) is sleeved with a torsion spring (25), and two ends of the torsion spring (25) are respectively fixedly connected with the annular plate (10) and the rotating plate (24).