CN218651051U - Handrail rotation locking adjusting device - Google Patents

Abstract

The utility model discloses a rotatory locking adjusting device of handrail, including handrail supporting part and handrail panel components: the handrail panel component comprises a bottom shell and a mounting seat arranged in the bottom shell; a rotating disc is rotatably arranged in the mounting seat; the handrail supporting part is provided with a connector which is connected to the bottom end of the rotating disc and fixed in the circumferential direction; a locking mechanism is further arranged between the mounting seat and the rotating disc and comprises a locking piece, and the locking piece is configured to slide relative to the mounting seat along the width direction of the bottom shell; two locking blocks which are spaced are arranged on the locking piece; the outer periphery of the rotating disc is provided with two clamping parts which are oppositely arranged, and the clamping parts are provided with clamping notches; the locking piece slides to enable the locking block to be clamped into or withdrawn from the clamping notch; the locking piece is connected with a button; in the locking state, the locking block is clamped in the clamping groove, and the bottom shell and the rotating disc are rotationally locked; under the unblock state, act on the button so that the locking piece withdraws from the joint notch, the drain pan can rotate the disc relatively.

Description

Handrail rotation locking adjusting device

Technical Field

The utility model relates to a thing to sit on field, in particular to rotatory locking adjusting device of handrail.

Background

The multifunctional armrest is a very important auxiliary functional accessory on current chairs, and when a user sits on the chair, the user may rest his arm or hand on the armrest in order to reduce arm and shoulder fatigue. As the structural function design of the chair becomes more and more diversified, the requirements of people on the comfort and the functionality of the chair armrest become higher and higher, so that the armrest is gradually developed into an adjustable armrest from the original mechanical fixed type; but currently, most handrails are only provided with a lifting adjusting function, so that the height of the handrail can be adjusted; handrails with a rotation adjusting function are rare; but the handrail supporting angles required by the user when actually working with a computer, playing a mobile phone or reading are different; it is then necessary to design a rotationally adjustable armrest.

However, the armrest which can be rotationally adjusted on the current seat can only realize the rotation within an angle range, the adjusting range is small, and the armrest can not be rotationally adjusted at any angle of 360 degrees, so that the armrest can not be operated along with the function of the human body; or the armrest is not provided with a locking switch, so that the rotation of the armrest cannot be locked or unlocked; even after the armrest is adjusted in a rotating mode, the armrest is easy to adjust mistakenly and deflect when in use.

Disclosure of Invention

The utility model overcomes the defects in the prior art, and provides a handrail rotation locking adjusting device, wherein a locking piece is arranged on a mounting seat in a sliding way and can be clamped with a rotating disc, so that the locking piece can be driven to move by acting a button, and the locking piece can be controlled to be clamped with the rotating disc for locking or rotating for unlocking; therefore, the armrest panel component can be conveniently locked or unlocked in a rotating way relative to the armrest supporting part, and the operation is very convenient.

The technical scheme of the utility model is realized like this:

an armrest rotary lock adjustment device comprising an armrest support and an armrest panel assembly that is rotatably fitted to an upper end of the armrest support at a horizontal level: the armrest panel component comprises a bottom shell and a mounting seat arranged in the bottom shell; a circular rotating disc is arranged in the mounting seat and can rotate in the mounting seat; the upper end of the handrail supporting part is provided with a connector which extends upwards, the connector is connected to the bottom end of the rotating disc, and the connector and the rotating disc are fixed in the circumferential direction; a locking mechanism is further arranged between the mounting seat and the rotating disc, the locking mechanism comprises a locking piece which is arranged on the mounting seat in a sliding mode, and the locking piece is configured to slide relative to the mounting seat along the width direction of the bottom shell; the locking piece is of a rectangular frame structure, and two locking blocks which are spaced and extend downwards are arranged on the locking piece along the width direction of the bottom shell; the outer periphery of the rotating disc is provided with two clamping parts which are oppositely arranged, and each clamping part is provided with at least one clamping notch; the locking piece can slide relative to the mounting seat so that the locking block is clamped in or withdrawn from the clamping groove opening; the locking piece is also connected with a button which is exposed out of the bottom shell; in the locking state, the locking block of the locking piece is clamped in the clamping groove of the rotating disc, and the bottom shell and the rotating disc are rotationally locked; in an unlocking state, the locking piece is pushed to move by acting on the button to enable the locking block to exit from the clamping notch, and the bottom shell can rotate relative to the rotating disc; and a gear adjusting mechanism which enables the handrail panel component to have a plurality of rotating gears is arranged between the rotating disc and the mounting seat.

Preferably, the gear adjusting mechanism comprises positioning slotted holes which are arranged on one of the rotating disc or the mounting seat at intervals in a circular shape, and elastic positioning bead heads which are arranged on the other of the rotating disc or the mounting seat and can elastically stretch out and draw back in a longitudinal direction. So that the bottom shell does not rotate around the rotating disk randomly in the unlocking state; under the matching action of the elastic positioning bead heads and the positioning groove holes, the handrail panel component has a plurality of rotation adjusting positions; has obvious gear feeling.

Preferably, the positioning slot hole is formed in the bottom of the caulking groove; the elastic positioning bead heads are arranged at the bottom end of the rotating disc, and the number of the elastic positioning bead heads is two. The elastic positioning bead heads are arranged in two, so that a user can drive the bottom shell to rotate only by applying a certain acting force; the handrail panel component can rotate under any gear position, has certain fastening force and is not easy to deflect.

Preferably, the locking member comprises two side rods which are spaced and parallel along the length direction of the bottom shell, a first cross rod which is connected to the two side rods and is close to the button end, and a second cross rod which is connected to the other ends of the two side rods; the button is connected to the first cross rod; the side rod is in sliding fit with the mounting seat; the locking block is respectively arranged at the bottom ends of the first cross rod and the second cross rod. The locking piece is rectangular frame structure, directly set up on the mount pad can, do not occupy too much space.

Preferably, a sunken annular sunken groove is formed in the middle of the upper end of the rotating disc, and the clamping groove opening is communicated with the sunken groove; in a locking state, the locking blocks on the first cross rod and the second cross rod are respectively clamped in clamping grooves at two ends of the rotating disc; in an unlocking state, the locking piece slides along the mounting seat, the locking block on the first cross rod exits from the clamping notch and enters the sinking groove, and the locking block can rotate in the sinking groove in the circumferential direction; the mounting seat is correspondingly provided with a notch close to the end of the second cross rod, and the locking block on the second cross rod exits from the clamping notch and enters the notch. Make under the unblock state, the locking piece on first horizontal pole and the second horizontal pole all withdraws from the joint notch, the locking piece not with rotate the disc joint, then the mount pad can be together relative rotation disc circumferential direction with the locking piece.

Preferably, the distance between the first cross bar and the second cross bar is matched with that between the rotating disks. Make two locking blocks can the joint in the joint notch at carousel both ends simultaneously, the locking effect is better.

Preferably, the bottom of each side rod is provided with a guide convex strip protruding downwards, and the guide convex strip extends along the width direction of the bottom shell; two ends of the mounting seat are respectively and correspondingly provided with a guide sliding chute; the locking piece sets up in the upper end of mount pad, and the direction sand grip is embedded into in the direction spout downwards. The locking piece can only slide relative to the mounting seat along the width direction of the bottom shell, and the locking piece and the mounting seat are fixed in the circumferential direction; then when the locking piece and the rotating disc are clamped, the installation seat and the rotating disc can be locked.

Preferably, the single clamping portion is provided with 3 clamping notches which are arranged at intervals in an arc shape. Such that the arm panel assembly can be locked in a plurality of positions.

Preferably, a return spring is further arranged between the locking piece and the mounting seat; the return spring acts on the locking member to cause the locking member to have a tendency to remain locked at all times. Then the button is released, and the return spring can act on the locking piece to return again.

Preferably, spring installation grooves are respectively concavely formed in two ends, close to the end face of the bottom shell, of the button, and the return spring is arranged between each spring installation groove and the side wall of the bottom shell along the width direction of the bottom shell. The reset spring is arranged between the button and the bottom shell, and does not occupy the inner space of the bottom shell.

Preferably, the mounting seat is of a rectangular structure, and the width of the mounting seat is matched with the inner width of the bottom shell so that the mounting seat and the bottom shell are circumferentially fixed; a round caulking groove is arranged in the mounting seat, and the rotating disk is rotatably matched in the caulking groove.

Adopted above-mentioned technical scheme the utility model discloses a design departure point, theory and beneficial effect are:

firstly, the locking piece is arranged on the mounting seat in a sliding manner and can be clamped with the rotating disc, so that the locking piece is driven to move by acting the button, and the locking piece and the rotating disc can be controlled to be clamped and locked or rotationally unlocked; when the handrail needs to be adjusted, the bottom shell can be rotated and adjusted by only pressing the button to push the locking piece to unlock the rotating disc; under the action of the gear adjusting mechanism, a plurality of adjusting gears are arranged in the rotating process; after the bottom shell is controlled to rotate for a circle, the locking piece and the rotating disc can be automatically locked again under the action of the return spring so as to lock the bottom shell; the rotation adjustment operation of the armrest panel component is very convenient and fast.

Secondly, when in an unlocking state, the bottom shell does not rotate around the rotating disk randomly; a gear adjusting mechanism is arranged between the rotating disc and the mounting seat, and is positioned and clamped with the elastic positioning bead head by utilizing the positioning groove hole; when the mounting seat rotates relative to the rotary disc, the elastic positioning bead heads are sequentially clamped in the positioning groove holes at different positions, so that the rotation process has a plurality of gears, and the handrail panel assembly has a plurality of rotation adjusting positions; the two elastic positioning bead heads are arranged, so that a user can drive the bottom shell to rotate only by applying a certain acting force; the handrail panel component can rotate under any gear position and has certain fastening force, and deflection is not easy to occur; so that the utility model has a certain adjusting hand feeling during adjusting.

Furthermore, the locking piece is of a rectangular frame structure; the first cross rod and the second cross rod of the locking piece are both provided with a locking block; correspondingly, two opposite clamping parts are arranged on the rotating disc; when the clamping is locked, the structure is more stable. And the locking piece slides all the time at the upper end of the mounting seat, and does not occupy the inner space of the bottom shell basically.

Drawings

Fig. 1 is a schematic perspective view illustrating a connection between the handrail panel assembly and the handrail supporting portion according to an embodiment of the present invention;

fig. 2 is an exploded view of the connection of the arm panel assembly to an arm support portion in an embodiment of the present invention;

fig. 3 is a schematic perspective view of the rotating disc and the mounting seat of the present invention;

fig. 4 is a schematic perspective view of the bottom case according to the embodiment of the present invention;

fig. 5 is a schematic perspective view of the locking member and the bottom shell according to an embodiment of the present invention;

fig. 6 is a schematic perspective view of the inside of the bottom case in the locked state according to the embodiment of the present invention;

fig. 7 is a schematic perspective view of the inside of the bottom case in an unlocked state according to the embodiment of the present invention;

fig. 8 is a schematic perspective view of the locking member and the rotating disc cooperating with each other in the locked state according to the embodiment of the present invention;

fig. 9 is a schematic perspective view of the locking member and the rotating disk in an unlocked state according to the embodiment of the present invention.

The figures are numbered: an armrest support part 1; an arm panel assembly 2; a bottom case 2a; a mounting base 3; rotating the disc 4; a sink tank 4a; a clip portion 4b; a connector 5; a caulking groove 6; a card slot 7; a lock member 8; side bars 8a; a first cross bar 801; a second cross bar 802; a button 9; a guide rib 10; a guide chute 11; a locking block 12; a clamping notch 13; an escape notch 14; a notch 15; a spring mounting groove 16; a return spring 17; a positioning slot hole 18; and the bead head 19 is elastically positioned.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In the description of the present invention, the term "at least one" means one or more unless explicitly defined otherwise. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, the longitudinal direction is the length direction along the armrest, and the transverse direction is the width direction along the armrest.

The specific implementation manner of the utility model is as follows:

as shown in fig. 1 to 9, the present invention provides a handrail rotation locking adjusting device, which comprises a longitudinal handrail supporting portion 1 and a horizontal handrail panel assembly 2 rotatably connected to the upper end of the handrail supporting portion 1; the arm panel assembly 2 is configured to support an arm of a user. The armrest panel assembly 2 includes a bottom case 2a located at the bottom and an installation seat 3 disposed in the bottom case 2a, and the installation seat 3 is circumferentially fixed to the bottom case 2a; a circular rotating disk 4 is arranged in the mounting base 3, the rotating disk 4 being rotatable in the mounting base 4. The upper end of the handrail supporting part 1 is provided with a connector 5 which extends upwards, the connector 5 is connected with the bottom end of the rotating disc 4, and the connector 5 and the rotating disc are fixed in the circumferential direction; then, the bottom shell 2a rotates relative to the rotating disk 4, that is, the handrail panel assembly 2 rotates relative to the handrail supporting part 1, so that the handrail panel assembly 2 can rotate 360 degrees relative to the handrail supporting part 1, and the adjustment range is wide. And a locking mechanism is further provided between the mounting base 3 and the rotating disk 4, and the locking mechanism can lock or unlock the rotation between the bottom case 2a and the rotating disk 4.

As shown in fig. 1-3, the mounting seat 3 has a rectangular structure, the width of the mounting seat 3 matches the inner width of the bottom casing 2a, and then the mounting seat 3 is embedded in the bottom casing 2a and then the two are circumferentially fixed. A circular recess 6 is provided in the mounting base 3, the rotary disk 4 being inserted into the recess 6 and the rotary disk 4 being able to rotate in the recess 6. A clamping groove 7 is formed in the bottom of the rotating disc 4, and the connecting head 5 is upwards clamped in the clamping groove 7; so that the connector 7 and the rotating disk 4 are circumferentially fixed, and then the handrail supporting part 1 and the rotating disk 4 are circumferentially fixed; so that the bottom case 2a rotates with respect to the rotary disk 4, i.e., with respect to the armrest support 1.

As shown in fig. 2-7, the locking mechanism includes a locking member 8 slidably disposed on the mounting base 3 and a button 9 connected to the locking member 8 and protruding outward from the bottom case 2a; wherein, the locking member 8 is a rectangular frame structure, and the locking member 8 comprises two side bars 8a spaced and parallel along the length direction of the bottom case 2a, a first cross bar 801 connected to the ends of the two side bars 8a close to the button 9, and a second cross bar 802 connected to the other ends of the two side bars 8 a. A guide convex strip 10 protruding downwards is arranged at the bottom of each side rod 8a, and the guide convex strip 10 extends along the width direction of the bottom shell 2a; two ends of the upper end surface of the mounting seat 3 are respectively and correspondingly provided with a guide chute 11; the locking member 8 is disposed at the upper end of the mounting base 3, and the guide protrusion 10 is embedded into the guide sliding groove 11. This in turn allows the blocking element 8 to slide only in the width direction of the bottom shell 2a relative to the mounting 3, both remaining fixed in the circumferential direction. And an avoiding notch 14 of an avoiding button 9 is arranged on one side end of the bottom shell 2a, and the button 9 is arranged in the avoiding notch 14 and exposed out of the bottom shell 2a, so that a user can conveniently press the button 9 to drive the locking piece 8 to move.

Further, the bottom ends of the first cross bar 801 and the second cross bar 802 are respectively provided with a locking block 12 protruding downwards; a sinking groove 4a which sinks and is annular is formed in the middle of the upper end of the rotating disc 4; two clamping parts 2b which are oppositely arranged and used for being clamped and matched with the locking block 12 are arranged on the outer periphery of the rotating disc 4, and 3 clamping notches 13 which are arranged at intervals in an arc shape are formed in each clamping part 2 b; each clamping notch 13 is penetrated through the sinking groove 4a, and the locking block 12 can be clamped in the clamping notch 13; and the space between the first cross rod 801 and the second cross rod 802 is directly matched with that of the rotating disc 4, so that the two locking blocks 12 can be simultaneously clamped in the clamping notches 13 at the two ends of the rotating disc 4. As shown in fig. 6 to 9, the locking member 8 and the rotating disc 4 have a locked state and an unlocked state, as shown in fig. 6 and 8, in the locked state, the locking blocks 12 on the first cross bar 801 and the second cross bar 802 are respectively clamped in the clamping notches 13 at the two ends of the rotating disc 4; then, the locking member 8 and the rotating disk 4 are circumferentially fixed, and the portion 8 is circumferentially fixed in the same way as the mounting seat 3, so that the bottom shell 2a and the rotating disk 4 are rotationally locked, and the bottom shell 2a cannot rotate relative to the armrest supporting part 1. As shown in fig. 7 and 9, in the unlocked state, the button 9 is pressed to slide the locking member 8 along the mounting seat 3, the locking block 12 on the first cross bar 801 exits from the clamping notch 13 and enters into the sinking groove 4a, and the locking block 12 can rotate in the inner circumference direction of the sinking groove 4a; a notch 15 is correspondingly arranged at the end of the mounting base 3 close to the second cross bar 802, and the locking block 12 on the second cross bar 802 exits from the clamping notch 13 and enters into the notch 15; at this moment, the locking piece 8 is no longer clamped with the rotating disk 4, and then the mounting seat 3 can rotate circumferentially relative to the rotating disk 4 together with the locking piece 8, so that the bottom shell 2a can rotate circumferentially relative to the armrest supporting part 1, and the angle of the armrest panel assembly 2 can be adjusted. As shown in fig. 2 and 4, spring mounting grooves 16 are respectively concavely provided at two ends of the button 9 close to the end surface of the bottom case 2a, a return spring 17 is provided between each spring mounting groove 16 and the side wall of the bottom case 2a, and the return spring 17 is provided along the width direction of the bottom case 2 a. Then when the button 9 is pressed to enable the locking piece 8 to be in the unlocking state, the return spring 17 is compressed, so that the elastic force for enabling the locking piece 8 to be locked and reset again can be provided; so that if the handrail panel assembly 2 is to be locked rotationally again, only the push button 9 needs to be released and then the bottom shell 2a is rotated, and the locking member 8 will be locked with the rotary disk 4 again after rotating to a proper position.

As shown in fig. 3, when in the unlocked state, the bottom shell 2a is not also rotated around the rotating disc 4 at will; a gear adjusting mechanism is also arranged between the rotating disc 4 and the mounting seat 3, and comprises positioning slotted holes 18 which are arranged in the caulking groove 6 at intervals in a circular shape and elastic positioning bead heads 19 which are correspondingly arranged at the bottom end of the rotating disc 4 and can elastically stretch out and draw back; then, when the mounting base 3 rotates relative to the rotating disc 4, the elastic positioning bead heads 19 are sequentially clamped in the positioning groove holes 18 at different positions, so that the rotation process has a plurality of gears, and the armrest panel component 2 has a plurality of rotation adjusting positions; secondly, the two elastic positioning bead heads 19 are configured, so that a user needs to apply a certain acting force to drive the bottom case 2a to rotate; the handrail panel component 2 can rotate under any gear position and has certain fastening force, and deflection is not easy to occur; so that the utility model has a certain adjusting hand feeling during adjusting.

Then, when the handrail needs to be adjusted, the handrail rotation adjusting device of the utility model only needs to press the button 9 to push the locking piece 8 to unlock the rotating disc 4, and then the bottom shell 2a can be adjusted in a rotation way; under the action of the gear adjusting mechanism, a plurality of adjusting gears are arranged in the rotating process; after the bottom shell 2a is controlled to rotate for one circle, the locking piece 8 and the rotating disc 4 can be automatically locked again under the action of the return spring 28 so as to lock the bottom shell 2a; so that the rotation adjustment operation of the arm panel assembly 2 is very convenient and fast.

Claims (11)

1. The utility model provides a handrail rotation locking adjusting device which characterized in that: including handrail supporting part and normal running fit at this handrail supporting part upper end horizontally handrail panel subassembly: the armrest panel component comprises a bottom shell and a mounting seat arranged in the bottom shell; a circular rotating disc is arranged in the mounting seat and can rotate in the mounting seat; the upper end of the handrail supporting part is provided with a connector which extends upwards, the connector is connected to the bottom end of the rotating disc, and the connector and the rotating disc are fixed in the circumferential direction; a locking mechanism is further arranged between the mounting seat and the rotating disc, the locking mechanism comprises a locking piece which is arranged on the mounting seat in a sliding mode, and the locking piece is configured to slide relative to the mounting seat along the width direction of the bottom shell; the locking piece is of a rectangular frame structure, and two locking blocks which are spaced and extend downwards are arranged on the locking piece along the width direction of the bottom shell; the outer periphery of the rotating disc is provided with two clamping parts which are oppositely arranged, and each clamping part is provided with at least one clamping notch; the locking piece can slide relative to the mounting seat so that the locking block is clamped in or withdrawn from the clamping groove opening; the locking piece is also connected with a button which is exposed out of the bottom shell; in the locking state, the locking block of the locking piece is clamped in the clamping groove of the rotating disc, and the bottom shell and the rotating disc are rotationally locked; in an unlocking state, the locking piece is pushed to move by acting on the button to enable the locking block to exit from the clamping notch, and the bottom shell can rotate relative to the rotating disc; and a gear adjusting mechanism which enables the handrail panel component to have a plurality of rotating gears is arranged between the rotating disc and the mounting seat.

2. The armrest rotational lock adjustment device of claim 1, wherein: the gear adjusting mechanism comprises positioning slotted holes which are arranged on one of the rotating disc or the mounting seat at intervals in a circular shape, and elastic positioning bead heads which are arranged on the other of the rotating disc or the mounting seat and can elastically stretch out and draw back in a longitudinal direction.

3. The armrest rotational lock adjustment device of claim 2, wherein: the positioning slot hole is formed in the bottom of the caulking groove; the elastic positioning bead heads are arranged at the bottom end of the rotating disc, and the number of the elastic positioning bead heads is two.

4. The armrest rotational lock adjustment device of claim 1, wherein: the locking piece comprises two side rods which are spaced and parallel along the length direction of the bottom shell, a first cross rod connected to the two side rods and close to the button end, and a second cross rod connected to the other ends of the two side rods; the button is connected to the first cross rod; the side rod is in sliding fit with the mounting seat; the locking block is respectively arranged at the bottom ends of the first cross rod and the second cross rod.

5. The armrest rotational lock adjustment device of claim 4, wherein: the middle part of the upper end of the rotating disc is provided with a sinking groove which is sunk and is annular, and the clamping notch is communicated with the sinking groove; in a locking state, the locking blocks on the first cross rod and the second cross rod are respectively clamped in clamping grooves at two ends of the rotating disc; in an unlocking state, the locking piece slides along the mounting seat, the locking block on the first cross rod exits from the clamping notch and enters the sinking groove, and the locking block can rotate in the sinking groove in the circumferential direction; the mounting seat is correspondingly provided with a notch close to the end of the second cross rod, and the locking block on the second cross rod exits from the clamping notch and enters the notch.

6. The armrest rotational lock adjustment device of claim 5, wherein: the distance between the first cross rod and the second cross rod is matched with that between the rotating disks.

7. The armrest rotational lock adjustment device of claim 4, wherein: the bottom of each side rod is provided with a guide convex strip protruding downwards, and the guide convex strip extends along the width direction of the bottom shell; two ends of the mounting seat are respectively and correspondingly provided with a guide sliding chute; the locking piece sets up in the upper end of mount pad, and the direction sand grip is embedded into in the direction spout downwards.

8. The armrest rotational lock adjustment device of claim 1, wherein: the single clamping portion is provided with 3 clamping notches which are arranged at intervals in an arc shape.

9. The armrest rotational lock adjustment device of claim 1, wherein: a return spring is also arranged between the locking piece and the mounting seat; the return spring acts on the locking member to cause the locking member to have a tendency to remain locked at all times.

10. The armrest rotational lock adjustment device of claim 9, wherein: the two ends of the button, which are close to the end face of the bottom shell, are respectively concavely provided with a spring mounting groove, and the reset spring is arranged between each spring mounting groove and the side wall of the bottom shell along the width direction of the bottom shell.

11. The armrest rotational lock adjustment device of claim 1, wherein: the mounting seat is of a rectangular structure, and the width of the mounting seat is matched with the inner width of the bottom shell so as to circumferentially fix the mounting seat and the bottom shell; a round caulking groove is arranged in the mounting seat, and the rotating disk is rotatably matched in the caulking groove.

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