CN217185317U - Movable tea table assembly and sofa - Google Patents

Abstract

The application relates to a movable tea table assembly and sofa, it includes slide rail and tea table, the slide rail slides and is connected with the carrier, the carrier rotates and is connected with and revolves the board, the tea table is including putting thing board and support, the support links to each other with revolving the board, the support is along with revolving the board and swing around the rotation center who revolves the board. This application has both reduced the tea table space and has occupied, has satisfied the tea table operation requirement's in the optional position effect again.

Description

Movable tea table assembly and sofa

Technical Field

The application relates to the field of furniture, in particular to a movable tea table assembly and a sofa.

Background

Tea tables and sofas are common furniture in life, and the tea tables are often used as supporting products of the sofas and are generally placed at the positions where the sofas are placed.

In order to enable a user to use the tea table at different positions, the length of the tea table is designed to be matched with the length of the sofa, but the tea table occupies too large volume, so that on one hand, space waste is easily caused, on the other hand, blocking is formed in space, and the legs and feet are inconvenient to place. Or the tea table is designed to be small enough, but this also results in the user needing to constantly and laboriously move the tea table by sitting in different positions.

Disclosure of Invention

In order to more conveniently use the tea table, the application provides an activity tea table assembly and sofa.

First aspect, this application provides an activity tea table assembly, adopts following technical scheme:

the utility model provides an activity tea table assembly, includes slide rail and tea table, the slide rail slides and is connected with the carrier, the carrier rotates and is connected with and revolves the board, the tea table is including putting thing board and support, the support links to each other with revolving the board, the support is along with revolving the board and revolve the swing of the center of rotation of board.

By adopting the technical scheme, when the slide rail is installed on the sofa, the tea table is integrated with the sofa through the slide rail, the tea table can horizontally move to any required position relative to the sofa through the matching connection of the slide rail and the carrier, the tea table can swing around the carrier, the tea table can wind from the front part of the sofa to the side part of the sofa, so that the interference of normal sitting and standing of the person sitting close to the side end is avoided, and the person sitting close to the side end can also use the tea table very conveniently. Therefore, the tea table can be adjusted to any required position in a labor-saving manner relative to the sofa, the occupied tea table space is reduced, and the use requirement of the tea table at any position is met.

Optionally, the rotating plate includes a base plate portion and a supporting portion, an ear portion extending along a side wall surrounding the base plate portion is protruded from a side wall of the supporting portion, and a slideway with an opening is formed between the ear portion and the base plate portion; a guide post is fixed on the slide rail; when the rotating plate slides to the position of the guide post along with the carrier, the guide post can enter from the opening of the carrier and move along the slide way by rotating the rotating plate.

By adopting the technical scheme, when the tea table reaches the position of the guide post along with the rotary plate, the horizontal movement of the tea table can be limited to the swing formed after the shape of the slide way is matched with the shape of the fixed guide post, so that the tea table has a limited arc-shaped track in the process of moving to the tail end in front of the sofa and swinging to the side end, the problem of clamping hands caused by the fact that the support and the sofa are too close to each other can be avoided on the one hand, and the sofa is prevented from being worn due to the fact that the support and the sofa generate friction on the other hand.

Optionally, the slide way is an arc slide way, a stop block is arranged on the path of the slide way, and when the carrier abuts against the stop block, the guide column is located at the opening of the slide way. Through adopting above-mentioned technical scheme, constitute the fixed point and swing, make the relative sofa of tea table swing more stable, more smooth and easy, avoid rocking in the swing in-process production, also avoid revolving the board and directly striking the guide post and lead to the guide post to take place to squint moving the in-process, guarantee in the use, tea table can rotate around predetermined track all the time.

In addition, when being stopped, the tea table continues to be stressed and is inevitably rotated, and the guide post can only play a role in avoiding deviation under the condition, and does not need to bear the stress of swinging, namely the guide post can not be contacted with the rotating plate. Therefore, the resistance generated in the swinging process can be reduced, and the noise generated by friction can be reduced.

Optionally, the lateral wall of revolving the board is equipped with the recess, the carrier is equipped with and can carries out the wheel carrier that elasticity is flexible towards being close to or keeping away from revolving the board, the wheel carrier rotates and is connected with the gyro wheel, the gyro wheel is contradicted and can imbed the recess with the week lateral wall of revolving the board.

By adopting the technical scheme, the tea table is forced to swing at different torques according to the shape of the groove, the size ratio between the roller and the groove and the difference of the elastic coefficient. Therefore, the tea table can be set according to the actual situation, the tea table only horizontally slides when being in front of the sofa, and only swings when reaching the end of the front, so that the problem that the sofa is abraded or the hands are clamped due to the fact that the tea table touches the sofa in the moving process can be avoided; and the tea table can be set to be tightly attached to the surface of the sofa when a user forcibly breaks the tea table.

In addition, when the tea table swings, the rollers are abutted against the peripheral side wall of the rotary plate, and torque can be provided relative to the rotation center to offset the radial stress of the part along the rotation center, so that the tea table swings more stably.

Optionally, the carrier includes the mounting bracket, the mounting bracket includes the sliding sleeve and is fixed in two cantilevers of sliding sleeve, the wheel carrier is worn to locate the sliding sleeve and can slide relative to the sliding sleeve, the inner chamber of sliding sleeve is equipped with the pressure spring of butt in the one end of sliding sleeve grafting in the sliding sleeve, and two cantilevers set up relatively, revolve the board and rotate to connect between two cantilevers.

Through adopting above-mentioned technical scheme, the moving direction of wheel carrier is injectd to the sliding sleeve, makes the gyro wheel on the wheel carrier can only move towards the direction that is close to or keeps away from the swivel plate, and pressure spring provides the precompression and makes the gyro wheel conflict the swivel plate all the time.

Optionally, the wheel carrier is provided with a wheel groove, the roller is a bearing, and the roller is embedded in the wheel groove; the roller wheel is characterized in that a bush is arranged between the two axial ends of the roller wheel and the inner wall of the wheel groove, a pin shaft is arranged through the roller wheel, the bush, the wheel carrier and the cantilever in a penetrating mode, a strip-shaped groove for the pin shaft to penetrate is formed in the cantilever, and the pin shaft can move along the length direction of the strip-shaped groove.

Through adopting above-mentioned technical scheme, the round pin axle is on the one hand as the rotation axis of gyro wheel, and on the other hand also cooperates the cantilever to constitute spacingly at the front end of wheel carrier, makes the front end of wheel carrier also can only move along the direction of setting for, and the bush can play the support to the gyro wheel, restricts the axial position of gyro wheel, can not produce the skew relative to the wheel carrier when making the gyro wheel atress, and the gyro wheel is as the bearing, can also carry out stable rotation when the inner circle restriction.

Optionally, the pin shaft is sleeved with an inner drag reduction gasket and an outer drag reduction gasket, the inner drag reduction gasket is embedded between the wheel carrier and the cantilever, and an inner drag reduction sleeve is arranged on an axial end face of the inner drag reduction gasket; the end part of the pin shaft is fixed with an end cap, the outer anti-drag gasket is positioned between the end cap and the cantilever, the axial end face of the outer anti-drag gasket is provided with an outer anti-drag sleeve, the inner anti-drag sleeve and the outer anti-drag sleeve are mutually nested, and the nested whole body is arranged in the strip-shaped groove in a penetrating mode.

By adopting the technical scheme, on one hand, a certain gap is formed between the wheel frame and the cantilever, the contact between the wheel frame and the cantilever is avoided, and even if the wheel frame is in contact with the cantilever, the stress cannot be formed, so that the noise generated between the wheel frame and the cantilever due to friction can be avoided. On the other hand, the inner drag reduction sleeve and the outer drag reduction sleeve are mutually nested, so that the whole body of the inner drag reduction sleeve is completely attached to the surface of the cantilever and the inner wall of the strip-shaped groove, the front end of the wheel carrier can always keep a stable stressed state in the sliding process, the pressure of the roller contra-rotating plate is always along the radial direction of the rotating plate, and the stable contra-rotating plate forms support.

Optionally, the carrier further includes a sliding table, the sliding table is provided with a limiting groove, and the end portion of the pin shaft is embedded in the limiting groove and can slide along the length direction of the strip-shaped groove relative to the limiting groove; the axial both ends of board are revolved and are equipped with thrust bearing respectively, and thrust bearing's another axial terminal surface is contradicted with two cantilevers respectively, slip table, cantilever, revolve board, thrust bearing wear to be equipped with the screw rod jointly and lock through matching the nut.

Through adopting above-mentioned technical scheme, can make the spiral plate possess the rotation basis on the one hand, possess the rotation ability when relative cantilever tightens up, on the other hand also compresses tightly the cantilever in the slip table surface through the cooperation of screw rod and nut, and meanwhile, the round pin axle has restricted the cantilever at the cantilever other end and has swung the commentaries on classics, and both combine to have reached the installation of mounting bracket for the slip table.

Optionally, the support includes lifter and supporting piece, the lifter matches the control assembly who has the restriction lifter lift, being fixed in of lifter revolves the board, the supporting piece is fixed in the bottom of putting the thing board, the supporting piece rotates with the lifter and is connected.

Through adopting above-mentioned technical scheme, can realize the altitude mixture control and the rotation of tea table, make the use of tea table more nimble.

In a second aspect, the present application provides a sofa, which adopts the following technical solutions:

the utility model provides a sofa, includes movable tea table assembly, still includes sofa body and base, the base is including the underframe that is fixed in sofa body bottom and the bearer bar that is located the underframe front portion, the interval sets up between the diapire of bearer bar and sofa body, the bottom of sofa body is equipped with the installation cavity, the slide rail is installed in the installation cavity, revolve the board part and pass the interval between bearer bar and the sofa body and to the outside of sofa body, the support mounting is in the part that revolves the board and is located the sofa body outside.

By adopting the technical scheme, the base is used as the part of the supporting bottom surface of the sofa body, and the interval formed by the protection frame and the sofa body enables related parts such as a sliding rail and the like to be arranged on the inner side of the sofa, and the rotary plate can extend out from the side end of the sofa to be used for installing and supporting a tea table, so that the occupied space outside the sofa is reduced, and on the other hand, sundries on the outer side of the sofa can be reduced to enter the bottom of the sofa through a passage for the rotary plate to penetrate out from the sofa, so that the use is kept clean.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the slide rail is installed on the sofa, the tea table and the sofa form a whole through the slide rail, the tea table can horizontally move to any required position relative to the sofa through the matching connection of the slide rail and the carrier, the tea table can swing around the carrier through the matching connection of the rotary plate and the carrier, and the tea table can wind from the front part of the sofa to the side part of the sofa, so that the interference of normal sitting and standing of a person sitting close to the side end is avoided, and the person sitting close to the side end can also use the tea table very conveniently. Therefore, the tea table can be adjusted to any required position in a labor-saving manner relative to the sofa, so that the occupied space of the tea table is reduced, and the use requirement of the tea table at any position is met;

2. when the tea table reaches the position of the guide post along with the rotary plate, the horizontal movement of the tea table is limited to the swing formed by matching the shape of the slide way with the shape of the fixed guide post, so that the tea table has a limited arc-shaped track in the process of moving to the tail end of the front of the sofa and swinging to the side end, the problem of clamping hands caused by the fact that the support and the sofa are too close to each other can be avoided on one hand, and the problem that the sofa is abraded due to the fact that the support and the sofa are rubbed on the other hand is also avoided;

drawings

Fig. 1 is an overall configuration diagram of the sofa according to the embodiment.

Fig. 2 is an overall view of the bottom view of the sofa according to the present embodiment.

Fig. 3 is a structural diagram of the slide rail and the swing plate according to the embodiment.

Fig. 4 is a schematic structural diagram of the slide rail and the carrier in this embodiment.

FIG. 5 is a schematic structural diagram of the carrier and the spin plate of the present embodiment.

Fig. 6 is a schematic structural diagram of the mounting frame and the wheel frame of the embodiment.

Description of the reference numerals: 1. a sofa body; 11. a seat cushion; 12. a backrest; 13. a mounting cavity; 2. a base; 21. a bottom frame; 22. a protective frame; 3. a slide rail; 31. a track; 32. a fastening member; 33. a guide post; 34. a stopper; 4. a tea table; 41. a storage plate; 42. a support; 421. a lifting rod; 422. a support member; 423. a control component; 5. a carrier; 51. a slider; 52. a sliding table; 521. a limiting groove; 53. a mounting frame; 531. a sliding sleeve; 532. a cantilever; 533. a strip-shaped groove; 54. a wheel carrier; 541. a roller; 542. a pressure spring; 543. a convex column; 544. a wheel groove; 545. a bushing; 55. a pin shaft; 551. an inner drag reduction shim; 552. an outer drag reducing shim; 553. an inner drag reduction sleeve; 554. an outer drag reduction sleeve; 555. an end cap; 6. rotating the plate; 61. a thrust bearing; 62. a screw; 63. a nut; 64. a substrate section; 65. a supporting portion; 651. a groove; 66. an ear portion; 67. a slideway; 68. a protective sleeve; 69. and (4) lining.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses movable tea table assembly and sofa. The movable tea table assembly is not limited to be used in the sofa field, but may be other furniture such as a chair, a bed, etc. for convenience of illustration, the embodiment is exemplified by being mounted to a sofa.

Referring to fig. 1, the sofa comprises a sofa body 1, a base 2 and a movable tea table 4 assembly.

The sofa body 1 comprises a seat cushion 11 and a backrest 12, wherein the seat cushion 11 is overall square and is in fillet transition at the end corners, for convenience of description, one side of the sofa with the backrest 12 is regarded as a rear side, and the other side of the sofa opposite to the backrest 12 is regarded as a front side. The bottom part of the sofa body 1 is provided with a hollow installation cavity 13.

The base 2 comprises a bottom frame 21 and a protection frame 22, wherein the bottom frame 21 is fixed at the bottom of the sofa body 1 through screws and is used as a part of the sofa which is directly contacted with the ground. The protective frame 22 is located at the front part of the bottom frame 21, the bottom of the protective frame 22 is flush with the bottom frame 21, and the top of the protective frame 22 and the bottom wall of the sofa body 1 are arranged at intervals.

The movable tea table 4 assembly comprises a slide rail 3 and a tea table 4, wherein the slide rail 3 is positioned in the installation cavity 13 of the sofa, and the tea table 4 is positioned at the outer side of the sofa and can move along the slide rail 3.

The slide rail 3 includes two parallel rails 31 and a fastening member 32 connecting the two rails 31, the fastening member 32 is fixed to the end of the rail 31, and one or both of the rails 31 and the fastening member 32 are fixed to the sofa body 1. A cylindrical guide post 33 is vertically fixed to the middle of the fixing member 32. The slide rail 3 is fitted with a carrier 5 slidable along the slide rail 3, and stoppers 34 fixed to the rail 31 are provided at both ends of the moving path of the carrier 5, the stoppers 34 defining the moving end point of the carrier 5.

The carrier 5 comprises a sliding block 51, a sliding table 52 and a mounting rack 53, each rail 31 is respectively matched with at least one sliding block 51 in sliding connection, in this embodiment, for example, one sliding block is corresponding to each rail 31, and the sliding table 52 and all the sliding blocks 51 are fixed through bolts.

The mounting bracket 53 includes a sliding sleeve 531 and two cantilevers 532 fixed to the sliding sleeve 531, wherein a top surface of the sliding sleeve 531 and one of the cantilevers 532 are attached to a bottom wall of the sliding platform 52. The two cantilevers 532 are opposite and parallel to each other, and both the cantilevers 532 have a disk-shaped surface, wherein the outer diameter of the disk of the cantilever 532 near the slide table 52 is larger than the outer diameter of the disk of the other cantilever 532 to increase the contact surface. The rotating plate 6 is clamped between the two cantilevers 532, the two axial ends of the rotating plate 6 are respectively provided with the thrust bearing 61, the other axial end face of the thrust bearing 61 is respectively abutted against the two cantilevers 532, wherein the outer diameter of the thrust bearing 61 close to the sliding table 52 is larger than the thrust bearing 61 of the sliding table 52 far away, so that the supporting surface is increased, and the supporting capacity is improved. The sliding table 52, the cantilever 532, the rotating plate 6, and the thrust bearing 61 are commonly provided with a screw 62 through which the screw 62 is fastened by a mating nut 63, so that the cantilever 532 and the sliding table 52 are fixed, and the screw 62 also serves as a central axis of rotation of the rotating plate 6.

The rotating plate 6 comprises a base plate 64 and a support part 65, wherein the base plate 64 is disc-shaped, the center of the base plate 64 is penetrated by the screw 62, the support part 65 is strip-shaped, one end of the support part 65 is integrally formed on the peripheral side wall of the base plate 64, the other end of the support part 65 penetrates through the space between the protective frame 22 and the sofa body 1 and is exposed outside the sofa, and the tea table 4 and the support part 65 are fixed at the part exposed outside the sofa.

The side wall of the supporting portion 65 is provided with a protruding portion 66 extending along the side wall of the surrounding base plate portion 64 in a protruding manner, a slide way 67 with an opening is formed between the protruding portion 66 and the base plate portion 64, in this embodiment, the slide way 67 is a circular arc slide way 67, in this embodiment, the slide way 67 may also be an oval slide way 67, and the blocking of the stopper 34 is cancelled. When the carrier 5 abuts against the stopper 34, the guiding column 33 is located at the opening of the sliding channel 67, and the rotating of the rotating plate 6 can make the guiding column 33 enter from the opening of the carrier 5 and move along the sliding channel 67 relative to the rotating plate 6. Correspondingly, when the tea table 4 moves to the position that the front side of the sofa is close to the end part of the sofa, the tea table swings to the left side or the right side of the sofa along with the rotation of the rotary plate 6.

In order to prevent the tea table 4 from swinging when moving in front of the sofa, the side wall of the supporting portion 65 is provided with a groove 651, the groove 651 is arc-shaped in the embodiment, and other embodiments may have a guiding groove such as a v-shape. The sliding sleeve 531 is hollow, a wheel frame 54 penetrates through an inner cavity of the sliding sleeve 531, the wheel frame 54 can move relative to the sliding sleeve 531 towards a direction close to or far away from the supporting portion 65 of the rotating plate 6, the wheel frame 54 is rotatably connected with a roller 541, and the roller 541 abuts against the peripheral side wall of the rotating plate 6 and can be embedded into the groove 651. A pressure spring 542 is embedded in the sliding sleeve 531, one end of the pressure spring 542 abuts against or is welded and fixed to the inner wall of the sliding sleeve 531, the other end of the pressure spring abuts against the wheel frame 54, and a convex column 543 is correspondingly arranged on the surface of the wheel frame 54 for the sleeve connection of the pressure spring 542. The pressure spring 542 constantly brings the roller 541 into contact with the circumferential side wall of the support portion 65. When the tea table 4 moves at the front side of the sofa, the roller 541 is embedded in the groove 651, and when the tea table 4 swings at the side end of the sofa, the roller 541 is separated from the groove 651.

For the connection between the roller 541 and the wheel frame 54, the wheel frame 54 is provided with a wheel groove 544, the roller 541 is a bearing, and the roller 541 is embedded in the wheel groove 544; a bushing 545 is arranged between the two axial ends of the roller 541 and the inner wall of the wheel groove 544, a pin 55 is arranged through the roller 541, the bushing 545, the wheel frame 54 and the cantilever 532 together, the cantilever 532 is provided with a strip-shaped groove 533 through which the pin 55 passes, and the pin 55 can move along the length direction of the strip-shaped groove 533. The pin shaft 55 is sleeved with an inner drag reduction gasket 551 and an outer drag reduction gasket 552, the inner drag reduction gasket 551 is embedded between the wheel carrier 54 and the cantilever 532, and the axial end face of the inner drag reduction gasket 551 is provided with an inner drag reduction sleeve 553; an end cap 555 is fixed at the end of the pin shaft 55, an outer drag reduction gasket 552 is located between the end cap 555 and the cantilever 532, an outer drag reduction sleeve 554 is arranged on the axial end face of the outer drag reduction gasket 552, the inner drag reduction sleeve 553 and the outer drag reduction sleeve 554 are mutually nested, and the nested whole body penetrates through the strip-shaped groove 533.

The sliding table 52 is provided with a position limiting groove 521 corresponding to the strip-shaped groove 533, and the end portion of the pin shaft 55 is embedded in the limiting groove 521 and can slide along the length direction of the strip-shaped groove 533 relative to the limiting groove 521. The pin 55 acts as a shaft for the roller 541, and limits the deflection of the cantilever 532, and the fixing of the screw 62 is engaged, so that the mounting bracket 53 is stably mounted relative to the sliding table 52.

The tea table 4 comprises a placing plate 41 and a support 42, the support 42 comprises a lifting rod 421 and a support 422, the lifting rod 421 is matched with a control component 423 for limiting the lifting of the lifting rod 421, the lifting rod 421 is fixed on the rotating plate 6, the support 422 is fixed at the bottom of the placing plate 41, and the support 422 is rotatably connected with the lifting rod 421. In this embodiment, the lifting rod 421 is a gas spring, the control component 423 is a brake valve matched with the gas spring, when the brake valve is pressed and no downward pressure is applied, the lifting rod 421 extends, and the object placing plate 41 rises; when the brake valve is pressed, and a depression force is applied, the storage plate 41 descends. The gas spring and corresponding brake valve are of known construction and are not deployed here.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides a movable tea table assembly which characterized in that: including slide rail (3) and tea table (4), slide rail (3) slide and are connected with carrier (5), carrier (5) rotate and are connected with and revolve board (6), tea table (4) are including putting thing board (41) and support (42), support (42) link to each other with revolving board (6), support (42) are along with revolving board (6) around revolving the rotation center swing of board (6).

2. The movable tea table assembly of claim 1, wherein: the rotary plate (6) comprises a base plate part (64) and a supporting part (65), wherein an ear part (66) extending along the side wall surrounding the base plate part (64) is convexly arranged on the side wall of the supporting part (65), and a slideway (67) with an opening is formed between the ear part (66) and the base plate part (64); a guide column (33) is fixed on the slide rail (3); when the rotary plate (6) slides to the position of the guide column (33) along with the carrier (5), the guide column (33) can enter from the opening of the carrier (5) and move along the slide way (67) by rotating the rotary plate (6).

3. The movable tea table assembly of claim 2, wherein: the slide way (67) is an arc-shaped slide way (67), a stop block (34) is arranged on the path of the slide rail (3), and when the carrier (5) is abutted against the stop block (34), the guide column (33) is positioned at the opening of the slide way (67).

4. The movable tea table assembly of claim 1, wherein: the side wall of the rotating plate (6) is provided with a groove (651), the carrier (5) is provided with a wheel carrier (54) which can be elastically stretched towards or away from the rotating plate (6), the wheel carrier (54) is rotatably connected with a roller (541), and the roller (541) is abutted against the side wall of the rotating plate (6) and can be embedded into the groove (651).

5. The movable tea table assembly of claim 4, wherein: the carrier (5) comprises a mounting frame (53), the mounting frame (53) comprises a sliding sleeve (531) and two cantilevers (532) fixed on the sliding sleeve (531), the wheel carrier (54) penetrates through the sliding sleeve (531) and can slide relative to the sliding sleeve (531), the inner cavity of the sliding sleeve (531) is provided with a pressure spring (542) which abuts against one end of the sliding sleeve (531) inserted in the sliding sleeve (531), the two cantilevers (532) are arranged relatively, and the rotating plate (6) is rotatably connected between the two cantilevers (532).

6. The movable tea table assembly of claim 5, wherein: the wheel frame (54) is provided with a wheel groove (544), the roller (541) is a bearing, and the roller (541) is embedded in the wheel groove (544); the roller wheel structure is characterized in that a bushing (545) is arranged between the two axial ends of the roller wheel (541) and the inner wall of the wheel groove (544), a pin shaft (55) is arranged in the roller wheel (541), the bushing (545), the wheel frame (54) and the cantilever (532) in a penetrating mode, a strip-shaped groove (533) for the pin shaft (55) to penetrate is arranged in the cantilever (532), and the pin shaft (55) can move along the length direction of the strip-shaped groove (533).

7. The movable tea table assembly of claim 6, wherein: the pin shaft (55) is sleeved with an inner drag reduction gasket (551) and an outer drag reduction gasket (552), the inner drag reduction gasket (551) is embedded between the wheel carrier (54) and the cantilever (532), and the axial end face of the inner drag reduction gasket (551) is provided with an inner drag reduction sleeve (553); an end cap (555) is fixed at the end of the pin shaft (55), the outer drag reduction gasket (552) is located between the end cap (555) and the cantilever (532), an outer drag reduction sleeve (554) is arranged on the axial end face of the outer drag reduction gasket (552), the inner drag reduction sleeve (553) and the outer drag reduction sleeve (554) are mutually nested, and the nested whole body penetrates through the strip-shaped groove (533).

8. The movable tea table assembly of claim 6, wherein: the carrier (5) further comprises a sliding table (52), the sliding table (52) is provided with a limiting groove (521), and the end part of the pin shaft (55) is embedded in the limiting groove (521) and can slide along the length direction of the strip-shaped groove (533) relative to the limiting groove (521); revolve board (6) axial both ends and be equipped with thrust bearing (61) respectively, another axial terminal surface of thrust bearing (61) contradicts with two cantilever (532) respectively, slip table (52), cantilever (532), revolve board (6), thrust bearing (61) wear to be equipped with screw rod (62) jointly and lock through matching nut (63).

9. The movable tea table assembly of claim 1, wherein: the support (42) includes lifter (421) and support (422), lifter (421) match has control assembly (423) that restriction lifter (421) go up and down, being fixed in of lifter (421) revolves board (6), support (422) are fixed in the bottom of putting thing board (41), support (422) rotate with lifter (421) and are connected.

10. A sofa, which is characterized in that: the movable tea table (4) assembly comprises the movable tea table (4) as claimed in any one of claims 1 to 9, and further comprises a sofa body (1) and a base (2), wherein the base (2) comprises a bottom frame (21) fixed at the bottom of the sofa body (1) and a protection frame (22) positioned at the front part of the bottom frame (21), the protection frame (22) and the bottom wall of the sofa body (1) are arranged at intervals, an installation cavity (13) is arranged at the bottom of the sofa body (1), the slide rail (3) is installed in the installation cavity (13), the rotary plate (6) partially penetrates through the interval between the protection frame (22) and the sofa body (1) and reaches the outer side of the sofa body (1), and the support (42) is installed at the part of the rotary plate (6) positioned at the outer side of the sofa body (1).

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