CN210055079U - Lifting mechanism and table - Google Patents

Abstract

The utility model discloses a lifting mechanism and a desk, which comprises an outer sleeve, an inner sleeve, a plug and a locking mechanism; the outer sleeve is sleeved outside the inner sleeve, and the outer sleeve and the inner sleeve can slide relatively; the plug is sleeved outside the inner sleeve, and is in sliding connection with the inner sleeve; the plug is arranged at the upper end of the outer sleeve, and the outer wall of the plug is provided with a pressing part; the locking mechanism is characterized in that: the pressing part is used for pressing the outer wall of the inner sleeve. Locking mechanism will press the splenium to interior sheathed tube outer wall, increases the frictional force between end cap and the interior sleeve pipe, makes relatively fixed between end cap and the interior sleeve pipe, and the end cap setting can lock whole elevating system in outer sleeve pipe upper end when end cap and outer tube top offset, guarantees that relative slip can not continue to take place between outer tube and the interior sleeve pipe, guarantees not rocking, stable and the normal use of desk.

Description

Lifting mechanism and table

technical field

The utility model relates to the field of tables, in particular to a lifting mechanism and a table.

Background technique

The existing lifting table generally drives the inner sleeve to slide up and down in the outer sleeve through the gas spring, and after driving the gas spring, the original air pressure is generally used for fixing, but if the gas is discharged, the It is easy to cause instability and affect the use.

Utility model content

The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide a lifting mechanism and a table, which can lock the working state of the lifting mechanism and ensure normal use.

According to the first aspect of the present invention, a lifting mechanism is provided, including an outer sleeve, an inner sleeve, a plug and a locking mechanism; the outer sleeve is sleeved outside the inner sleeve, and the outer sleeve is connected to the outer sleeve. The inner casing can slide relatively; the plug is sleeved on the outside of the inner casing, and the plug is slidably connected with the inner casing; the plug is arranged on the upper end of the outer casing, and the plug is The outer wall of the head is provided with a pressing portion; the locking mechanism is used for pressing the pressing portion against the outer wall of the inner sleeve.

Beneficial effects: The locking mechanism presses the pressing part against the outer wall of the inner casing, increases the friction between the plug and the inner casing, and makes the plug and the inner casing relatively fixed, and the plug is arranged on the upper end of the outer casing , When the plug is in contact with the top of the outer casing, the entire lifting mechanism can be locked to ensure that the outer casing and the inner casing will not continue to slide relative to each other, and to ensure that the table does not shake, is stable and can be used normally.

According to the lifting mechanism according to the first aspect of the present invention, the plug can be embedded in the outer sleeve, the outer sleeve is provided with a concave hole, and the locking mechanism includes a pressing rod, and the pressing rod can extend into the concave hole and press against the pressing part so that the pressing part abuts against the inner sleeve. Insert the plug into the outer casing to fix the position between the plug and the outer casing, then align the pressing part with the concave hole, and use the pressing rod to extend into the concave hole to press the pressing part.

According to the lifting mechanism of the first aspect of the present invention, the outer sleeve is provided with a rotating seat, and the pressing rod is rotatably connected with the rotating seat. Rotating the pressing rod can switch the state of the lifting mechanism between locking and movement.

According to the lifting mechanism of the first aspect of the present invention, the outer sleeve and the plug are fixedly connected by pins. The plug is fixed on the outer casing to prevent the plug from moving with the expansion and contraction of the inner casing, which can ensure the relative position between the plug and the outer casing is fixed, and is convenient to use.

According to the lifting mechanism of the first aspect of the present invention, the inner side of the plug is provided with a plurality of protrusions, and the surface of the inner sleeve is provided with a plurality of grooves that can accommodate the protrusions. The protrusion is embedded in the groove and slides in the groove to guide the inner sleeve, prevent the relative rotation between the inner sleeve and the plug and reduce the degree of shaking.

According to the lifting mechanism of the first aspect of the present invention, the inner sleeve is further sleeved with at least one guide sleeve, and the guide sleeve is arranged between the inner sleeve and the outer sleeve, and is arranged at the lowermost end The guide sleeve is fixedly connected with the end of the inner sleeve. The guide sleeve is arranged between the inner sleeve and the outer sleeve to prevent friction between the inner sleeve and the outer sleeve, protect the surface of the inner sleeve and help the inner sleeve to slide smoothly in the outer sleeve.

According to the lifting mechanism of the first aspect of the present invention, the guide sleeve is provided with a plurality of through holes, and a plurality of balls are embedded in the plurality of through holes, and the balls are connected to the inner sleeve and the outer sleeve. Tubes are balanced. Convert sliding friction into rolling friction and reduce friction. In addition, in addition to rolling in the hole, the ball can also move inward or outward in the hole under the condition of elastic extrusion, so as to avoid when the inner sleeve moves in the outer sleeve, due to the insufficient roundness of the outer sleeve. Or the thickness is not uniform and the sliding is hindered and not smooth. Among them, the true roundness (abbreviated as roundness) here is represented by the radial offset of its actual contour relative to the ideal circle, that is, the difference between the maximum radius and the minimum radius relative to the same circle center.

The lifting mechanism according to the first aspect of the present invention further comprises a base and an installation frame, the base is fixed on the bottom end of the outer sleeve, the installation frame is fixed at the top end of the inner sleeve, the A gas spring is arranged inside the inner sleeve, and both ends of the gas spring are respectively fixed on the mounting frame and the base. The gas spring provides the power for the inner casing to rise and fall.

According to the lifting mechanism according to the first aspect of the present invention, the mounting frame includes a fixed seat, a rotating frame and a rotating handle, the fixed base is fixed on the top end of the inner sleeve, and one end of the rotating frame is rotatably connected to the On the fixed seat, one end of the rotating handle is rotatably connected to the free end of the turret, the fixed seat is provided with a concave portion, and the free end of the rotating handle can be inserted into the concave portion and fix the rotating handle When the rotating handle is inserted into the recess, the rotating frame is arranged vertically.

According to the second aspect of the present invention, there is provided a table including any one of the above-mentioned lifting mechanisms.

Beneficial effects: The locking mechanism presses the pressing part against the outer wall of the inner casing, increases the friction between the plug and the inner casing, and makes the plug and the inner casing relatively fixed, and the plug is arranged on the upper end of the outer casing , When the plug is in contact with the top of the outer casing, the entire lifting mechanism can be locked to ensure that the outer casing and the inner casing will not continue to slide relative to each other, and to ensure that the table does not shake, is stable and can be used normally.

Description of drawings

Below in conjunction with accompanying drawing and embodiment, the utility model is further described;

Fig. 1 is the structural representation of the table of the utility model embodiment;

2 is a schematic structural diagram of a lifting mechanism according to an embodiment of the present invention;

3 is a schematic structural diagram of a plug according to an embodiment of the present invention;

Fig. 4 is the structural schematic diagram among the guide sleeve, the outer sleeve and the inner sleeve in the embodiment of the utility model;

Fig. 5 is the partial schematic diagram of A part of Fig. 4;

FIG. 6 is a schematic diagram of the structure between the inner sleeve, the guide sleeve and the plug in the embodiment of the present invention.

7 is a schematic structural diagram of the mounting frame when the turret is in a vertical state in an embodiment of the present invention;

8 is a schematic structural diagram of the mounting frame when the turret is in a horizontal state in an embodiment of the present invention;

FIG. 9 is a schematic structural diagram when a plurality of tables are arranged close together in an embodiment of the present utility model;

FIG. 10 is a schematic structural diagram of the table in a folded state according to the embodiment of the present invention.

reference number

Table top 10; Elevating mechanism 20; Outer sleeve 21; Recessed hole 211; Inner sleeve 22; Groove 221; Plug 23; Pressing part 231; Protrusion 232; Pressing rod 24; ; gas spring 27; guide sleeve 28; through hole 281; ball 282; fixed seat 262; turret 261;

Detailed ways

This part will describe the specific embodiments of the present invention in detail, and the preferred embodiments of the present invention are shown in the accompanying drawings. Understand each technical feature and overall technical solution of the present invention, but it should not be construed as a limitation on the protection scope of the present invention.

In the description of the present utility model, it should be understood that the orientation descriptions related to orientations, such as up, down, front, rear, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings, only It is for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In the description of the present utility model, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including this number, above, below, within, etc. are understood as including this number. If it is described that the first and the second are only for the purpose of distinguishing technical features, it cannot be understood as indicating or implying relative importance, or indicating the number of the indicated technical features or the order of the indicated technical features. relation.

In the description of the present invention, unless otherwise clearly defined, words such as setting, installation, connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution .

1, the table of the embodiment of the present invention includes a table top 10 and a lifting mechanism 20. The table in the present invention may refer to various types of tables such as dining tables, desks, conference tables, coffee tables, bar tables or training tables. table.

2 and 3 , the lifting mechanism 20 of the embodiment of the present invention includes an outer sleeve 21 , an inner sleeve 22 , a plug 23 and a locking mechanism; the outer sleeve 21 is sleeved outside the inner sleeve 22 , the outer sleeve 21 and the inner sleeve 22 can slide relative to each other; the plug 23 is sleeved on the outside of the inner sleeve 22, and the plug 23 is slidably connected with the inner sleeve 22; the The plug 23 is arranged on the upper end of the outer sleeve 21 , and the outer wall of the plug 23 is provided with a pressing part 231 ; the locking mechanism: used to press the pressing part 231 to the outer wall of the inner sleeve 22 tight.

3 , preferably, the plug 23 is made of plastic, and the outer wall of the plug 23 is provided with two vertical grooves, so that the left and right sides of the pressing portion 231 are separated from the outer wall, and the upper side of the pressing portion 231 is connected to the outer wall and is connected The part of the pressing part 231 forms the pivot point of the pressing part 231, so that the pressing part 231 can swing around the part where the pressing part 231 is connected with the outer wall.

In use, the locking mechanism presses the pressing portion 231 against the outer wall of the inner sleeve 22, increasing the friction between the plug 23 and the inner sleeve 22, so that the plug 23 and the inner sleeve 22 are relatively fixed. The plug 23 is arranged on the upper end of the outer sleeve 21, the plug 23 is in contact with the top of the outer sleeve 21, and the relative position between the plug 23 and the outer sleeve 21 is fixed, so that the entire lifting mechanism 20 can be locked, and the outer sleeve 21 and the inner sleeve 21 can be locked. The relative sliding between the sleeves 22 will not continue to occur, so as to ensure that the table is not shaken, stable and can be used normally.

In some embodiments, the plug 23 can be embedded in the outer sleeve 21, the outer sleeve 21 is provided with a concave hole 211, and the locking mechanism includes a pressing rod 24, and the pressing rod 24 is extendable into the recessed hole 211 and press the pressing portion 231 to make the pressing portion 231 abut against the inner sleeve 22 .

1 and 2, in a specific embodiment, the outer sleeve 21 is provided with a rotating seat 241, the rotating seat 241 includes blocks arranged on both sides of the recessed hole 211, and the pressing rod 24 is rotatably connected with the blocks, When it is necessary to lock the entire lifting mechanism 20, the pressing rod 24 is pressed against the pressing part 231, so that the pressing part 231 and the inner sleeve 22 are pressed tightly, and the friction force is improved; when the inner sleeve 22 needs to be raised or lowered, the pressing rod 24 is rotated , the friction force between the pressing portion 231 and the inner sleeve 22 is reduced, so that the inner sleeve 22 and the plug 23 can slide relative to each other.

It should be mentioned that in another embodiment, the pressing rod 24 is engaged with the concave hole 211 through threads. When the entire lifting mechanism 20 needs to be locked, the pressing rod 24 is screwed into the inner sleeve 22 and the pressing portion 231 Press the inner sleeve 22 tightly; when the inner sleeve 22 needs to be raised or lowered, the pressing rod 24 can be unscrewed to release the pressing portion 231 and the inner sleeve 22 .

Referring to FIG. 2 , in a specific implementation manner, the outer sleeve 21 and the plug 23 are fixedly connected by pins. Fixing the plug 23 on the outer sleeve 21 prevents the plug 23 from moving with the expansion and contraction of the inner sleeve 22 , and can ensure the relative position between the plug 23 and the outer sleeve 21 is fixed, which is convenient for use.

Referring to FIG. 6 , the inner side of the plug 23 is provided with a plurality of protrusions 232 , and the surface of the inner sleeve 22 is provided with a plurality of grooves 221 for accommodating the protrusions 232 . The protrusion 232 is embedded in the groove 221 and slides in the groove 221 to guide the inner sleeve 22 and prevent relative rotation between the inner sleeve 22 and the plug 23 .

It should be mentioned that, referring to FIG. 3 , the three protrusions 232 are evenly arranged on the inner side of the plug 23 around the center. When combined with the inner sleeve 22, the force can be more balanced and the stability of the lifting mechanism 20 can be improved. .

4 and 5 , in a specific embodiment, the inner sleeve 22 is further sleeved with at least one guide sleeve 28 , and the guide sleeve 28 is disposed between the inner sleeve 22 and the outer sleeve 21 In between, the guide sleeve 28 disposed at the lowermost end is fixedly connected with the end of the inner sleeve 22 .

5 and 6, the guide sleeve 28 includes a first guide sleeve 28-1 and a second guide sleeve 28-2. The second guide sleeve 28-2 is disposed at the end of the inner sleeve 22 and fixed by a pin. The first guide sleeve 28-2 is The guide sleeve 28-1 can slide on the inner sleeve 22, and the second guide sleeve 28-2 can effectively prevent the first guide sleeve 28-1 from falling off the inner sleeve 22 during the sliding process.

The guide sleeve 28 is disposed between the inner sleeve 22 and the outer sleeve 21 , which can prevent friction between the inner sleeve 22 and the outer sleeve 21 and protect the surface of the inner sleeve 22 .

5 , in a specific embodiment, the guide sleeve 28 is provided with a plurality of through holes 281 , and a plurality of balls 282 are embedded in the plurality of through holes 281 , and the balls 282 are connected to the inner sleeve. 22 and the outer sleeve 21 are in contact with each other. Convert sliding friction into rolling friction and reduce friction.

In a specific embodiment, the lifting mechanism 20 of the present invention further includes a base 25 and an installation frame 26, the base 25 is fixed on the bottom end of the outer sleeve 21, and the installation frame 26 is fixed on the inner sleeve. At the top of the tube 22 , a gas spring 27 is arranged inside the inner sleeve 22 , and both ends of the gas spring 27 are respectively fixed on the mounting frame 26 and the base 25 . The gas spring 27 provides the rising power for the inner sleeve 22 .

In some embodiments, referring to FIGS. 7 and 8 , the mounting bracket 26 includes a fixing base 262 , a rotating frame 261 and a rotating handle 263 , the fixing base 262 is fixed on the top of the inner sleeve 22 , and the One end of the turret 261 is rotatably connected to the fixed seat 262, and one end of the rotating handle 263 is rotatably connected to the free end of the turret 261. The fixed seat 262 is provided with a recess 2621, and the rotating handle 263 The free end can be inserted into the recess 2621 and fix the position of the rotating handle 263. When the rotating handle 263 is inserted into the recess 2621, the rotating frame 261 is arranged vertically. The table top 10 is fixed on the turret 261 .

It should be mentioned that a torsion spring 2632 is provided between the rotating handle 263 and the rotating frame 261, the rotating handle 263 is provided with an abutting block 2631, and the fixing frame is provided with an embedding hole 2622 into which the abutting block 2631 can be inserted. The hole 2622 is arranged on the bottom side of the fixing frame. When the handle 263 is turned to drive the table 10 to swing down, the abutment block 2631 is inserted into the insertion hole 2622. The table 10 is fixed in contact with the abutment block 2631 .

By rotating the rotating handle 263, the rotating handle 263 can control the rotating frame 261 to switch between horizontal and vertical, which is convenient for the user to turn over the desktop 10 and facilitate storage. Referring to FIG. 10, it is a schematic diagram of the structure of the table in the folded state. The table after being flipped and folded can save space and improve the space utilization rate. Referring to FIG. 9, in daily use, multiple tables can be arranged side by side. space.

A table includes a table top 10 and a lifting mechanism 20. The lifting mechanism 20 includes an outer sleeve 21, an inner sleeve 22, a plug 23, a locking mechanism, a base 25 and a mounting frame 26; the outer sleeve 21 is sleeved on the Outside the inner sleeve 22, the outer sleeve 21 and the inner sleeve 22 can slide relative to each other; the plug 23 is sleeved outside the inner sleeve 22, and the plug 23 and the inner sleeve 22 Sliding connection; the plug 23 is arranged on the upper end of the outer sleeve 21, and the outer wall of the plug 23 is provided with a pressing part 231; the plug 23 is embedded in the outer sleeve 21 and fixed to the outer sleeve by a pin 21, the outer sleeve 21 is provided with a concave hole 211, the locking mechanism includes a pressure rod 24, the outer sleeve 21 is provided with a rotating seat 241, and the rotating seat 241 includes blocks arranged on both sides of the concave hole 211, so The pressing rod 24 is rotatably connected with the stopper, the pressing rod 24 rotates on the rotating seat 241 and extends into the concave hole 211 , the pressing rod 24 drives the pressing part 231 to press the inner sleeve 22 and makes the pressing The frictional force between the part 231 and the inner sleeve is increased, so that the position between the plug 23 and the inner sleeve is fixed. The inner side surface of the plug 23 is provided with a plurality of protrusions 232 , and the surface of the inner sleeve 22 is provided with a plurality of grooves 221 for accommodating the protrusions 232 . The inner sleeve 22 is also sleeved with at least one guide sleeve 28, the guide sleeve 28 is arranged between the inner sleeve 22 and the outer sleeve 21, and the guide sleeve arranged at the lowermost end is connected to the outer sleeve 21. The end of the inner sleeve is fixedly connected. The guide sleeve 28 is provided with a plurality of through holes 281 , and a plurality of balls 282 are embedded in the plurality of the through holes 281 , and the balls 282 abut against the inner sleeve 22 and the outer sleeve 21 . The base 25 is fixed on the bottom end of the outer sleeve 21 , the mounting bracket 26 is fixed on the top end of the inner sleeve 22 , and the inner sleeve 22 is provided with a gas spring 27 , and the gas spring 27 The two ends of the bracket are respectively fixed on the mounting frame 26 and the base 25 .

The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings, but the present utility model is not limited to the above-mentioned embodiments, and within the scope of knowledge possessed by those of ordinary skill in the technical field, the present utility model can also be used without departing from the purpose of the present utility model. make various changes.

Claims (10)

1. Elevating system, its characterized in that includes: the outer sleeve, the inner sleeve, the plug and the locking mechanism;

the outer sleeve is sleeved outside the inner sleeve, and the outer sleeve and the inner sleeve can slide relatively;

the plug is sleeved outside the inner sleeve, and is in sliding connection with the inner sleeve;

the plug is arranged at the upper end of the outer sleeve, and the outer wall of the plug is provided with a pressing part;

the locking mechanism is characterized in that: the pressing part is used for pressing the outer wall of the inner sleeve.

2. The lifting mechanism as claimed in claim 1, wherein the plug is embedded in the outer sleeve, the outer sleeve is provided with a recess, and the locking mechanism comprises a pressing rod which can extend into the recess and press against the pressing portion to press the pressing portion against the inner sleeve.

3. The lift mechanism as recited in claim 2 wherein the outer sleeve is provided with a rotatable seat, the plunger being rotatably coupled to the rotatable seat.

4. The lifting mechanism as claimed in claim 1, 2 or 3, wherein the outer sleeve is fixedly connected to the plug by a pin.

5. The lifting mechanism as claimed in claim 4, wherein the inner surface of the plug is provided with a plurality of protrusions, and the surface of the inner sleeve is provided with a plurality of grooves for accommodating the protrusions.

6. The lifting mechanism according to claim 1, wherein the inner sleeve is further sleeved with at least one guide sleeve, the guide sleeve is disposed between the inner sleeve and the outer sleeve, and the guide sleeve disposed at the lowermost end is fixedly connected to the end of the inner sleeve.

7. The lifting mechanism as claimed in claim 6, wherein the guide sleeve has a plurality of through holes, and a plurality of balls are inserted into the through holes and abut against the inner sleeve and the outer sleeve.

8. The lifting mechanism according to claim 1, 2, 3, 6 or 7, further comprising a base and a mounting frame, wherein the base is fixed at the bottom end of the outer sleeve, the mounting frame is fixed at the top end of the inner sleeve, a gas spring is arranged inside the inner sleeve, and two ends of the gas spring are respectively fixed on the mounting frame and the base.

9. The lifting mechanism according to claim 8, wherein the mounting bracket comprises a fixed seat, a rotating frame and a rotating handle, the fixed seat is fixed at the top end of the inner sleeve, one end of the rotating frame is rotatably connected to the fixed seat, one end of the rotating handle is rotatably connected with the free end of the rotating frame, a concave portion is formed in the fixed seat, the free end of the rotating handle can be inserted into the concave portion and fix the position of the rotating handle, and when the rotating handle is inserted into the concave portion, the rotating frame is vertically arranged.

10. A table comprising a lifting mechanism as claimed in any one of claims 1 to 9.

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