CN117397929B

CN117397929B - Multi-angle adjusting structure of pneumatic lifting table

Info

Publication number: CN117397929B
Application number: CN202311719582.4A
Authority: CN
Inventors: 魏东阳; 许进平
Original assignee: Xiamen Shengchengxin Technology Co ltd
Current assignee: Xiamen Shengchengxin Technology Co ltd
Priority date: 2023-12-14
Filing date: 2023-12-14
Publication date: 2024-03-22
Anticipated expiration: 2043-12-14
Also published as: CN117397929A

Abstract

The invention relates to the technical field of lifting tables, in particular to a multi-angle adjusting structure of a pneumatic lifting table, which comprises a bottom bracket, a rotating mechanism, pneumatic telescopic table legs, a mounting rack, a first transverse shaft, a second transverse shaft, a rotating frame, a table top, a jump-stage mechanism, an adjusting spanner and an inclined assembly, wherein the inclined assembly comprises a swinging seat, an elastic telescopic rod, an adapter seat, a connecting square tube, an adjusting mechanism, arc plate frames and a blocking mechanism, a plurality of limiting bayonets are arranged on each arc plate frame at intervals along the length direction of each arc plate frame, a sliding waist hole is formed in each limiting frame, the adjusting mechanism comprises a connecting pipe frame, limiting slide rods, swinging cylinders, a pull rope, a rotating disc and limiting clamping blocks, the connecting pipe frame is provided with a wavy slide way, each limiting slide rod is in sliding fit with one sliding waist hole, and a universal wheel for moving is arranged on the bottom bracket.

Description

Multi-angle adjusting structure of pneumatic lifting table

Technical Field

The invention relates to the technical field of lifting tables, in particular to a multi-angle adjusting structure of a pneumatic lifting table.

Background

Along with the improvement of the living standard of people, the requirements on comfort, convenience and the like of a table required to be used in living and working are also higher and higher. Therefore, various tables appear in the market, including lifting tables, which are suitable for people with different environments or heights, can be used for daily life or office work, not only has adjustable height, but also can flexibly adjust the inclination angle of the table top according to the use requirement, thereby being convenient to use and saving space, and being widely favored by users. In order to more conveniently adjust the height, a pneumatic lifting table is arranged.

The prior lifting table is usually used for adjusting the inclination angle of the table top through adjusting the structures of the handle, the sliding groove, the spring and the clamping rod, but in the practical use process, the mode cannot meet the requirements of people, and in some specific cases, the adjustment through the handle is inconvenient, for example, when people sit on a sofa, the adjustment of the table top is needed, and people also need to stand up for adjustment, so that the novel lifting table capable of being adjusted at multiple angles is needed.

Disclosure of Invention

Based on this, it is necessary to provide a multi-angle adjusting structure of a pneumatic lifting table for solving the problems of the prior art.

In order to solve the problems in the prior art, the invention adopts the following technical scheme: the multi-angle adjusting structure of the pneumatic lifting table comprises a bottom bracket, a rotating mechanism arranged on the bottom bracket, a pneumatic telescopic table leg fixedly arranged on a rotating output end of the rotating mechanism, a mounting frame fixedly arranged on the top end of the pneumatic telescopic table leg, a first transverse shaft fixedly arranged on the mounting frame, a second transverse shaft fixedly arranged on the mounting frame and positioned below the first transverse shaft, a rotating frame rotationally arranged on the first transverse shaft, a table top fixedly arranged on the rotating frame, a jump stage mechanism arranged below the table top and used for adjusting the inclination angle of the table top at a large angle, an adjusting spanner arranged below the table top and an inclination assembly, wherein the inclination assembly comprises a swinging seat rotationally arranged on the second transverse shaft, two ends of the swinging seat are hinged with the end parts of the second transverse shaft, the other end of the elastic telescopic rod is hinged with the tabletop, the adapter seat is hinged with the bottom of the tabletop, the connecting square tube is connected with the adapter seat in an elastic sliding manner, the regulating mechanism is arranged on the connecting square tube, the two arc plate frames are symmetrically arranged on the swinging seat, the limiting frames and the blocking mechanism are arranged on the two arc plate frames, a plurality of limiting bayonets are arranged on each arc plate frame at intervals along the length direction of each arc plate frame, the sliding waist hole is formed on each limiting frame, the regulating mechanism comprises a connecting pipe frame fixedly arranged at the end part of the connecting square tube, two limiting sliding rods which are symmetrically fixedly arranged on the connecting pipe frame, a swinging cylinder movably arranged in the connecting pipe frame, one end of the swinging cylinder is connected with the swinging cylinder, a pull rope, the other end of the pull rope is connected with the adapter seat in an elastic coaxial sliding manner, the rotating disc is arranged below the swinging cylinder, and a plurality of limiting clamping blocks are elastically arranged on the rotating disc along the circumferential direction, the connecting pipe frame is provided with a wavy slide way, the swinging cylinder is in sliding fit with the wavy slide way, each limiting slide rod is in sliding fit with one sliding waist hole, and a universal wheel for moving is arranged on the bottom support.

Further, be the symmetry state on the adapter and be provided with two conflict boards, be provided with compression spring on every conflict board, two rectangle slide holes have been seted up to the symmetry state on the lateral wall of connecting square pipe, every conflict board and every rectangle slide hole one-to-one and sliding fit, the one end and the conflict board of every compression spring link to each other, and the other end links to each other with the rectangle slide hole.

Further, the connecting pipe frame is including first pipe frame, second pipe frame and a plurality of fixed inserted bar, and first pipe frame and second pipe frame all link firmly with fixed inserted bar, all are provided with the wave breach on first pipe frame and the second pipe frame, swing cylinder lateral wall is fixed to be provided with a plurality of slip minor axis, and the crest in wave breach of first pipe frame and second pipe frame is crisscross to be corresponded, forms and is used for supplying the gliding wave slide of slip minor axis.

Further, the tilting assembly further comprises a connecting plate coaxially and fixedly arranged on the first pipe frame and a reset spring arranged on the swing cylinder, a connecting end is formed on the swing cylinder, one end of the reset spring is sleeved on the connecting end, the other end of the reset spring abuts against the connecting plate, and one end of the pull rope is fixedly connected with the connecting end.

Further, the shaping of swing cylinder bottom has the installation pipe, the tilting assembly is still including fixed closing cap that sets up on the installation pipe, coaxial slip setting up the adapter rod and the coaxial cover locating the spacing spring on the adapter rod in the installation pipe, annular shaping has a plurality of spacing lug on the inner wall of closing cap, has seted up a plurality of spacing recess on the lateral wall of adapter rod, every spacing recess and every spacing lug one-to-one, and the one end and the closing cap of spacing spring link to each other, and the other end links to each other with the adapter rod, the rotary disk links firmly with the adapter rod.

Further, each arc plate frame is fixedly provided with two installation laths in a symmetrical state along the vertical central surface of the arc plate frame, each installation lath is provided with a plurality of elastic protruding blocks at intervals along the length direction of the installation lath, and each limiting bayonet is provided with an arc edge.

Further, the jump level mechanism comprises a limiting pipe fixedly arranged below the tabletop, a pull rod arranged in the limiting pipe in a sliding manner, a collision spring coaxially sleeved on the pull rod, and an auxiliary rope with one end connected with the pull rope and the other end connected with the pull rope, wherein one end of the collision spring is connected with the pull rod, and the other end of the collision spring is connected with the limiting pipe.

Further, rotary mechanism is including fixing the supporting seat that sets up on the bottom support, the fixed top cap that sets up on the supporting seat, set up annular gasbag in the supporting seat, rotate the support column that sets up on the supporting seat and set up the inflator on the bottom support, the shaping has inner tube and outer tube respectively on the supporting seat, and a plurality of sliding groove has been seted up to the annular between inner tube and the outer tube, and every sliding inslot elastic sliding is provided with the slip inserted bar, and a plurality of spacing draw-in groove has been seted up to the annular in bottom of support column, and every spacing draw-in groove and every slip inserted bar one-to-one, and annular gasbag offsets with every slip inserted bar, and the supporting seat links firmly with pneumatic flexible table leg bottom and is connected, the supporting seat is rotary output of rotary mechanism promptly, and annular gasbag passes through the hose and links to each other with the inflator.

Compared with the prior art, the invention has the following beneficial effects:

the method comprises the following steps: when the device is used for adjusting the inclination angle of the tabletop, the tabletop is only required to be slightly lifted upwards to trigger the adjusting mechanism, then the tabletop is pressed down, so that the tabletop inclination adjustment can be completed, the conventional manual wrench pulling is not required to be used for adjusting, the adjusting step is simpler, and the ergonomic design is more met;

and two,: the device can directly jump the stage to adjust from the horizontal angle to the maximum inclination angle or to any angle of the inclination range when a user adjusts the desktop through the arrangement of the stage jump mechanism.

Drawings

FIG. 1 is a schematic perspective view of an embodiment;

FIG. 2 is a schematic perspective view of a second embodiment;

FIG. 3 is a side view of an embodiment;

FIG. 4 is a top view of an embodiment;

FIG. 5 is a cross-sectional view taken along line F-F in FIG. 4;

FIG. 6 is an enlarged schematic view of the structure shown at A in FIG. 5;

FIG. 7 is an enlarged schematic view of the structure at B in FIG. 5;

FIG. 8 is an exploded perspective view of the embodiment rotation mechanism;

FIG. 9 is a schematic perspective view of an embodiment of a pipe rack connection;

fig. 10 is an exploded view of a three-dimensional structure of a connecting square tube and an adapter according to an embodiment;

FIG. 11 is a perspective cross-sectional view of an embodiment where a pipe rack and a movable cylinder are connected;

FIG. 12 is an enlarged schematic view of the structure at C in FIG. 11;

FIG. 13 is an exploded view of the movable cylinder and the transfer rod of the embodiment;

FIG. 14 is a schematic exploded view of a movable column and a transfer rod in a three-dimensional structure according to the second embodiment;

FIG. 15 is a schematic view showing a perspective structure of an arc plate frame of the embodiment;

fig. 16 is a schematic perspective view of an embodiment tilt assembly.

The reference numerals in the figures are: 1. a bottom bracket; 2. a tabletop; 3. adjusting a wrench; 4. a rotating frame; 5. a jump level mechanism; 6. a limiting tube; 7. a pull rod; 8. a contact spring; 9. an auxiliary rope; 10. pneumatic telescopic table legs; 11. a mounting frame; 12. a first transverse axis; 13. a second transverse axis; 14. a tilting assembly; 15. a swinging seat; 16. arc plate frame; 17. limiting bayonet; 18. an arc edge; 19. a blocking mechanism; 20. mounting a slat; 21. an elastic bump; 22. a limiting frame; 23. sliding waist holes; 24. an elastic telescopic rod; 25. an adapter; 26. a contact plate; 27. a pressure spring; 28. connecting square tubes; 29. rectangular slide holes; 30. an adjusting mechanism; 31. a connecting plate; 32. connecting a pipe support; 33. a first pipe rack; 34. a wavy notch; 35. swinging the cylinder; 36. a connection end; 37. a pull rope; 38. a return spring; 39. sliding the stub shaft; 40. installing a pipe; 41. a cover; 42. a limit bump; 43. a transfer rod; 44. a limit groove; 45. a limit spring; 46. a rotating disc; 47. a limit clamping block; 48. a second pipe rack; 49. a limit slide bar; 50. fixing the inserted link; 51. a wave-shaped slideway; 52. a rotation mechanism; 53. a support base; 54. an inner tube; 55. a sliding groove; 56. sliding the inserted link; 57. an annular air bag; 58. a hose; 59. an inflator; 60. a support column; 61. a limit clamping groove; 62. an outer tube; 63. and a top cover.

Detailed Description

The invention will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the invention and the specific objects and functions achieved.

Referring to fig. 1 to 16:

the multi-angle adjusting structure of the pneumatic lifting table comprises a bottom bracket 1, a rotating mechanism 52 arranged on the bottom bracket 1, a pneumatic telescopic table leg 10 fixedly arranged on the rotating output end of the rotating mechanism 52, a mounting frame 11 fixedly arranged on the top end of the pneumatic telescopic table leg 10, a first transverse shaft 12 fixedly arranged on the mounting frame 11, a second transverse shaft 13 fixedly arranged on the mounting frame 11 and positioned below the first transverse shaft 12, a rotating frame 4 rotatably arranged on the first transverse shaft 12, a table top 2 fixedly arranged on the rotating frame 4, a jump stage mechanism 5 arranged below the table top 2 and used for adjusting the inclination angle of the table top 2 at a large angle, an adjusting spanner 3 arranged below the table top 2 and an inclination assembly 14, wherein the inclination assembly 14 comprises a swinging seat 15 rotatably arranged on the second transverse shaft 13, two ends of the swinging seat are hinged with the end parts of the second transverse shaft 13, the other end is hinged with the tabletop 2, the elastic telescopic rod 24 is hinged with the bottom of the tabletop 2, the adapter seat 25 is hinged with the bottom of the tabletop 2, the connecting square tube 28 is elastically and slidably connected with the adapter seat 25, the adjusting mechanism 30 is arranged on the connecting square tube 28, the two arc plate frames 16 which are symmetrically arranged on the swinging seat 15, the limiting frame 22 and the blocking mechanism 19 which are arranged on the two arc plate frames 16 are arranged on each arc plate frame 16 at intervals along the length direction, a plurality of limiting bayonets 17 are arranged on each arc plate frame 16 at intervals, the sliding waist hole 23 is arranged on each limiting frame 22, the adjusting mechanism 30 comprises a connecting tube frame 32 fixedly arranged at the end part of the connecting square tube 28, two limiting slide bars 49 which are symmetrically fixedly arranged on the connecting tube frame 32, a swinging cylinder 35 which is movably arranged in the connecting tube frame 32, one end of the swinging cylinder 35 is connected with one end of the swinging cylinder, and a pull rope 37 which is connected with the adapter seat 25, the elastic coaxial sliding is arranged on the rotating disk 46 below the swinging cylinder 35 and a plurality of limit clamping blocks 47 which are elastically arranged on the rotating disk 46 along the circumferential direction, a wavy slideway 51 is arranged on the connecting pipe rack 32, the swinging cylinder 35 is in sliding fit with the wavy slideway 51, each limit sliding rod 49 is in sliding fit with one sliding waist hole 23, and universal wheels for moving are arranged on the bottom bracket 1.

During the use of the lifting table (it should be noted that, the limit clamping block 47 is clamped in the limit bayonet 17 in the initial state, at this time, the table top 2 is locked), when the inclination angle of the table top 2 is desired to be adjusted, the table top 2 is pulled to lift a bit, at this time, as the table top 2 is lifted, the pull rope 37 is pulled to enable the swing cylinder 35 to be driven to move, after the swing cylinder 35 is pulled to move by the pull rope 37, the swing cylinder 35 can swing reciprocally along the wavy slide way 51, namely, from one crest of the wavy slide way 51 to the other crest, the rotation of the swing cylinder 35 drives the rotary disk 46 to rotate, the rotary disk 46 rotates to drive the limit clamping block 47 to be separated from the limit bayonet 17, then the table top 2 is pressed downwards, the two elastic telescopic rods 24 shrink adaptively, the limit sliding rod 49 also slides in the sliding waist hole 23, during the process of pressing down the table top 2, the rotary disk 46 is pushed by the blocking mechanism 19, at this time, the rotary disk 46 drives the swing cylinder 35 to move upwards and rotate again under the action of the wavy slide way 51, so that the limit clamping block is clamped into the limit clamping block 17 again, and the rotation of the limit clamping block is clamped into the limit bayonet 17, and the table top 2 is locked again, and the step can be repeated until the inclination angle is adjusted to the table top 2 is adjusted. When the lifting table is in a small space, the pneumatic telescopic table leg 10 can be driven to rotate by a certain angle through the rotating mechanism 52, the pneumatic telescopic table leg 10 is rotated and then drives the table top 2 to rotate, so that comfortable use experience is provided for a user, and the applicable scene of the lifting table is also increased. When the height of the table top 2 needs to be raised, the table top 2 can be adjusted to a proper height by moving the adjusting wrench 3 to start the cylinder in the pneumatic telescopic table leg 10 (this is a mature existing mechanism, so that redundant description is omitted).

In order to show the elastic connection of the adapter 25 and the connecting square tube 28, the following features are specifically provided:

two interference plates 26 are symmetrically arranged on the adapter 25, pressure springs 27 are arranged on each interference plate 26, two rectangular sliding holes 29 are symmetrically arranged on the side wall of the connecting square tube 28, each interference plate 26 corresponds to each rectangular sliding hole 29 one by one and is in sliding fit, one end of each pressure spring 27 is connected with each interference plate 26, and the other end of each pressure spring 27 is connected with each rectangular sliding hole 29.

In the process of lifting the tabletop 2 to drive the pull rope 37 to be tensioned, the abutting plate 26 slides in the rectangular sliding hole 29, the movement of the abutting plate 26 further causes the compression of the compression spring 27, when the tabletop 2 is pressed down, the elastic force of the compression spring 27 is released, the abutting plate 26 is reset, the adapter 25 is contacted with the top of the connecting square tube 28 after the abutting plate 26 is reset, and the tabletop 2 is pressed down later to adjust the inclination angle of the tabletop 2.

In order to specifically reveal the connection relationship of the connecting pipe frame 32 and the swing cylinder 35, the following features are specifically provided:

the connecting pipe rack 32 comprises a first pipe rack 33, a second pipe rack 48 and a plurality of fixed inserting rods 50, the first pipe rack 33 and the second pipe rack 48 are fixedly connected with the fixed inserting rods 50, wavy notches 34 are formed in the first pipe rack 33 and the second pipe rack 48, a plurality of sliding short shafts 39 are fixedly arranged on the side walls of the swinging cylinders 35, wave peaks of the wavy notches 34 of the first pipe rack 33 and the second pipe rack 48 are staggered and correspond to form wavy sliding ways 51 for the sliding short shafts 39 to slide.

When the swing cylinder 35 moves, the sliding short shaft 39 abuts against the wavy notch 34 of the first pipe frame 33 and the wavy notch 34 of the second pipe frame 48 successively along with the movement of the swing cylinder 35, so that the swing cylinder 35 swings and rotates along with the wavy slideway 51 in a reciprocating manner.

In order to ensure that when the pull cord 37 pulls the swing cylinder 35, the swing cylinder 35 can elastically reset so as to cause the sliding stub 39 to slide along one trough of the wavy slide way 51 to the other trough, the following features are specifically provided:

the tilting assembly 14 further comprises a connecting plate 31 coaxially and fixedly arranged on the first pipe frame 33, and a return spring 38 arranged on the swinging cylinder 35, wherein a connecting end 36 is formed on the swinging cylinder 35, one end of the return spring 38 is sleeved on the connecting end 36, the other end of the return spring is propped against the connecting plate 31, and one end of the pull rope 37 is fixedly connected with the connecting end 36.

During operation of the device, when the pull rope 37 pulls the swing cylinder 35 to move, the swing cylinder 35 firstly collides with the wavy notch 34 of the first pipe frame 33, the swing cylinder 35 rotates by a small angle, so that the limiting clamping block 47 slides out of the limiting bayonet 17, at the moment, the limiting clamping block 47 collides with the plane of the arc plate frame 16, the restoring spring 38 is stressed to compress, then the tabletop 2 is pressed down, the restoring spring 38 releases pressure, so that the swing cylinder 35 slides into the wavy notch 34 of the second pipe frame 48, the restoring spring 38 is stressed again to compress along with the pressing of the tabletop 2, the swing cylinder 35 slides into the wavy notch 34 of the first pipe frame 33 again under the action of the blocking mechanism 19, then the restoring spring 38 releases the pressure to reset, the sliding short shaft 39 slides into the wavy notch 34 of the second pipe frame 48 again, at the moment, the limiting clamping block 47 is clamped into the lower limiting bayonet 17 again, and the tabletop 2 is locked again.

In order to allow the oscillating cylinder 35 to oscillate up and down along the undulating ramp 51 under the action of the sliding stub 39, the rotary disk 46 is able to move together, provided in particular with the following features:

the swinging cylinder 35 bottom shaping has the installation pipe 40, the tilting assembly 14 still includes the closing cap 41 that fixedly sets up on the installation pipe 40, the coaxial slip sets up the adapter rod 43 and the coaxial cover locating the spacing spring 45 on the adapter rod 43 of locating in the installation pipe 40, the annular shaping has a plurality of spacing lug 42 on the inner wall of closing cap 41, has seted up a plurality of spacing recess 44 on the lateral wall of adapter rod 43, every spacing recess 44 and every spacing lug 42 one-to-one, and the one end of spacing spring 45 links to each other with closing cap 41, and the other end links to each other with adapter rod 43, rotary disk 46 links firmly with adapter rod 43.

When the swing cylinder 35 is driven to move by the pull rope 37, due to the arrangement of the limiting groove 44 and the limiting projection 42, the swing cylinder 35 can be pulled to move upwards, the sliding short shaft 39 slides into the wavy notch 34 of the first pipe frame 33, the swing cylinder 35 rotates at a small angle, then the switching rod 43 is driven to rotate by the swing cylinder 35, the switching rod 43 rotates to drive the rotating disc 46 to rotate, the rotating disc 46 rotates to enable the limiting clamping block 47 to slide out of the limiting bayonet 17, when the blocking mechanism 19 operates, the blocking mechanism 19 contacts the rotating disc 46, the rotating disc 46 is in hard contact with the bottom of the swing cylinder 35, further the swing cylinder 35 is caused to move upwards again, and then the sliding short shaft 39 slides into the wavy notch 34 of the first pipe frame 33 under the action of the reset spring 38, and then the sliding short shaft 39 slides into the wavy notch 34 of the second pipe frame 48.

In order to reveal the detailed structure of the blocking mechanism 19, the following features are provided in particular:

two mounting battens 20 are fixedly arranged on each arc plate frame 16 in a symmetrical state along the vertical central surface of each arc plate frame 16, a plurality of elastic protruding blocks 21 are elastically arranged on each mounting batten 20 at intervals along the length direction of each mounting batten 20, and each limiting bayonet 17 is provided with an arc edge 18.

When the device operates, the elastic protruding block 21 abuts against the rotating disc 46, when the rotating disc 46 abuts against one elastic protruding block 21, the elastic protruding block 21 is abutted against the rotating disc 46, so that after the swing cylinder 35 moves upwards due to the abutting of the elastic protruding block 21 and the rotating disc 46, the rotating disc 46 slides over the elastic protruding block 21, then under the action of the sliding short shaft 39, the swing cylinder 35 rotates again, the limiting clamping block 47 is clamped into the limiting bayonet 17 again, and the resistance when the limiting clamping block 47 rotates to be clamped into the limiting bayonet 17 is reduced due to the arrangement of the arc-shaped edge 18.

In order to reveal the detailed structure of the jump stage mechanism 5, the following features are provided in particular:

the jump level mechanism 5 comprises a limiting pipe 6 fixedly arranged below the tabletop 2, a pull rod 7 slidably arranged in the limiting pipe 6, a collision spring 8 coaxially sleeved on the pull rod 7, one end of the collision spring 8 is connected with the pull rod 7, the other end of the collision spring is connected with a subsidiary rope 9 connected with a pull rope 37, one end of the collision spring 8 is connected with the pull rod 7, and the other end of the collision spring is connected with the limiting pipe 6.

When the device is operated, if the tabletop 2 can skip a plurality of limit bayonets 17 and directly adjust at a large angle, the pull rod 7 can be pulled when the tabletop 2 is pressed down, the pull rod 7 moves to tighten the auxiliary rope 9, the auxiliary rope 9 pulls the pull rope 37, the pull rope 37 drives the swing cylinder 35 to move upwards at the moment, the tabletop 2 is directly pressed down, the reset spring 38 on the swing cylinder 35 is always in a contracted state and directly presses down, the rotating disc 46 contacts the elastic lugs 21 to enable the elastic lugs 21 to contract, when the rotating disc 46 passes through a plurality of elastic lugs 21, if a proper angle is reached, the pull rod 7 is loosened, the abutting spring 8 drives the pull rod 7 to reset, the auxiliary rope 9 is loosened again, the reset spring 38 releases pressure to drive the swing cylinder 35 to move, the sliding short shaft 39 slides into the wavy notch 34 of the second pipe frame 48, and then the process that the rotating disc 46 contacts the elastic lugs 21 is repeated until the limit clamping blocks 47 are clamped into the limit bayonets 17 again to lock the tabletop 2.

In order to reveal the detailed structure of the rotation mechanism 52, the following features are specifically provided:

the rotary mechanism 52 comprises a supporting seat 53 fixedly arranged on the bottom bracket 1, a top cover 63 fixedly arranged on the supporting seat 53, an annular air bag 57 arranged in the supporting seat 53, a supporting column 60 rotatably arranged on the supporting seat 53 and an inflator pump 59 arranged on the bottom bracket 1, an inner pipe 54 and an outer pipe 62 are respectively formed on the supporting seat 53, a plurality of sliding grooves 55 are annularly formed between the inner pipe 54 and the outer pipe 62, sliding inserted rods 56 are elastically arranged in each sliding groove 55 in a sliding manner, a plurality of limiting clamping grooves 61 are annularly formed in the bottom of the supporting column 60, each limiting clamping groove 61 corresponds to each sliding inserted rod 56 one by one, the annular air bag 57 abuts against each sliding inserted rod 56, the supporting seat 53 is fixedly connected with the bottom of the pneumatic telescopic table leg 10, the supporting seat 53 is the rotary output end of the rotary mechanism 52, and the annular air bag 57 is connected with the inflator pump 59 through a hose 58.

When the tabletop 2 is required to be adjusted to rotate, a user steps on the inflator pump 59 by feet, the inflator pump 59 carries out gas transmission on the annular air bag 57 through the flexible pipe 58, so that the annular air bag 57 is inflated, a plurality of sliding inserted rods 56 synchronously move and diverges, the sliding inserted rods 56 are separated from the limiting clamping grooves 61, the tabletop 2 is rotated, the tabletop 2 drives the pneumatic telescopic table legs 10 to rotate, the pneumatic telescopic table legs 10 drive the supporting columns 60 to rotate, after the tabletop 2 is rotated to a proper angle, the inflator pump 59 is loosened, the annular air bag 57 leaks gas, the sliding inserted rods 56 reset to lock the supporting columns 60 again, the tabletop 2 is locked, and the lifting table is convenient for the user to use subsequently.

Working principle: during the use of the lifting table (it should be noted that, the limiting clamping block 47 is clamped in the limiting bayonet 17 in the initial state, at this time, the tabletop 2 is locked), when the inclination angle of the tabletop 2 is desired to be adjusted, the tabletop 2 is pulled to lift a bit, at this time, as the tabletop 2 is lifted, the pull rope 37 is pulled to enable the swinging cylinder 35 to be driven to move, after the swinging cylinder 35 is pulled by the pull rope 37 to move, the sliding short shaft 39 firstly collides with the wavy notch 34 of the first pipe frame 33, the swinging cylinder 35 rotates by a small angle along with the sliding short shaft 39, so that the limiting clamping block 47 slides out of the limiting bayonet 17, at this time, the limiting clamping block 47 collides with the plane of the arc plate frame 16, the reset spring 38 is compressed under force, then the tabletop 2 is pressed down, the reset spring 38 releases pressure, so that the sliding short shaft 39 slides into the wavy notch 34 of the second pipe frame 48, the tabletop 2 is continuously pressed down, the two elastic telescopic rods 24 are self-adaptively contracted, the limiting sliding rod 49 also slides in the sliding waist hole 23, and in the process of pressing down the tabletop 2, the rotating disk 46 collides with the wavy notch 34 of the first pipe frame 33, the elastic clamping block 21 slides into the elastic lug 21 again, and then the elastic lug 46 slides into the cylindrical lug 35 after the elastic lug 46 slides down the elastic lug 21, and makes the elastic lug 35 slide into the circular lug 35, and then the limiting lug 35 slides up again, and rotates the elastic lug 46. At this point, the table top 2 is locked again and the above steps may be repeated until the table top 2 is adjusted to the proper tilt angle.

If the tabletop 2 can skip a plurality of limit bayonets 17 and directly adjust the tabletop 2 at a large angle, the pull rod 7 can be pulled when the tabletop 2 is pressed down, the pull rod 7 moves to tighten the auxiliary rope 9, the auxiliary rope 9 pulls the pull rope 37, the pull rope 37 drives the swing cylinder 35 to move upwards at the moment, the tabletop 2 is directly pressed down, the reset spring 38 on the swing cylinder 35 is always in a contracted state, the rotating disk 46 directly presses down, the elastic lugs 21 are touched by the rotating disk 46, the elastic lugs 21 are contracted, when the rotating disk 46 passes through the plurality of elastic lugs 21, if a proper angle is reached, the pull rod 7 is loosened, the push spring 8 drives the pull rod 7 to reset, the auxiliary rope 9 is loosened again, the reset spring 38 releases pressure to drive the swing cylinder 35 to move, the sliding short shaft 39 slides into the wavy notch 34 of the second pipe frame 48, and then the process that the rotating disk 46 and the elastic lugs 21 are touched is repeated again until the limit clamping blocks 47 are clamped into the limit bayonets 17 again to lock the tabletop 2. When the lifting table is in a small space, the pneumatic telescopic table leg 10 can be driven to rotate by a certain angle through the rotating mechanism 52, the pneumatic telescopic table leg 10 is rotated and then drives the table top 2 to rotate, so that comfortable use experience is provided for a user, and the applicable scene of the lifting table is also increased. When the height of the table top 2 needs to be raised, the table top 2 can be adjusted to a proper height by moving the adjusting spanner 3 to start the operation of the air cylinder in the pneumatic telescopic table leg 10.

The foregoing examples merely illustrate one or more embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims

1. The utility model provides a multi-angle regulation structure of pneumatic type elevating table, a serial communication port, including bottom support (1), rotary mechanism (52) of setting on bottom support (1), the fixed pneumatic flexible table leg (10) of setting on rotary output of rotary mechanism (52), fixed mounting bracket (11) of setting on pneumatic flexible table leg (10) top, the fixed first cross axle (12) of setting on mounting bracket (11), the fixed second cross axle (13) of setting on mounting bracket (11) and being located first cross axle (12) below, rotate rotating frame (4) of setting on first cross axle (12), the fixed desktop (2) of setting on rotary frame (4), jump level mechanism (5) of setting on desktop (2) below and being used for wide-angle regulation desktop (2) inclination, set up adjusting wrench (3) and tilting assembly (14) below desktop (2), tilting assembly (14) are including rotating swing seat (15) of setting up on second cross axle (13), two one end and second cross axle (13) tip hinge, the other end and articulated desktop (2), elastic switchover seat (25) that link to each other with articulated desktop (25) of elastic switchover seat (25), link to each other with flexible square tube (25) of articulated desktop (25) The adjusting mechanism (30) arranged on the connecting square tube (28), two arc plate frames (16) and limiting frames (22) which are symmetrically arranged on the swinging seat (15) and a blocking mechanism (19) arranged on the two arc plate frames (16), a plurality of limiting bayonets (17) are arranged on each arc plate frame (16) at intervals along the length direction of the arc plate frames, sliding waist holes (23) are formed in each limiting frame (22), the adjusting mechanism (30) comprises a connecting pipe frame (32) fixedly arranged at the end part of the connecting square tube (28), two limiting slide bars (49) which are symmetrically arranged on the connecting pipe frame (32), a swinging cylinder (35) movably arranged in the connecting pipe frame (32), one end of the swinging cylinder (35) is connected with the swinging cylinder (35), a pull rope (37) connected with the switching seat (25) at the other end of the swinging cylinder (35), a rotating disk (46) arranged below the swinging cylinder (35) in an elastic coaxial sliding mode, and a plurality of limiting clamping blocks (47) elastically arranged on the rotating disk (46) along the circumferential direction of the arc plate frames, the connecting pipe frames (32) are provided with wavy slide blocks (51), the swinging cylinder (35) and each sliding slide block (51) in a sliding fit with the wavy slide way (51), the bottom bracket (1) is provided with a universal wheel for moving.

2. The multi-angle adjusting structure of a pneumatic lifting table according to claim 1, wherein two abutting plates (26) are symmetrically arranged on the adapter seat (25), pressure springs (27) are arranged on each abutting plate (26), two rectangular sliding holes (29) are symmetrically arranged on the side wall of the connecting square tube (28), each abutting plate (26) is in one-to-one corresponding and sliding fit with each rectangular sliding hole (29), one end of each pressure spring (27) is connected with each abutting plate (26), and the other end of each pressure spring is connected with each rectangular sliding hole (29).

3. The multi-angle adjusting structure of a pneumatic lifting table according to claim 2, wherein the connecting pipe rack (32) comprises a first pipe rack (33), a second pipe rack (48) and a plurality of fixed inserting rods (50), the first pipe rack (33) and the second pipe rack (48) are fixedly connected with the fixed inserting rods (50), wavy gaps (34) are formed in the first pipe rack (33) and the second pipe rack (48), a plurality of sliding short shafts (39) are fixedly arranged on the side wall of the swinging cylinder (35), and peaks of the wavy gaps (34) of the first pipe rack (33) and the wavy gaps (34) of the second pipe rack (48) are staggered and correspond to form wavy sliding ways (51) for the sliding short shafts (39) to slide.

4. A multi-angle adjusting structure of a pneumatic lifting table according to claim 3, wherein the tilting assembly (14) further comprises a connecting plate (31) coaxially and fixedly arranged on the first pipe frame (33) and a return spring (38) arranged on the swinging cylinder (35), the swinging cylinder (35) is provided with a connecting end (36), one end of the return spring (38) is sleeved on the connecting end (36), the other end of the return spring is propped against the connecting plate (31), and one end of the pull rope (37) is fixedly connected with the connecting end (36).

5. The multi-angle adjusting structure of a pneumatic lifting table according to claim 4, wherein the bottom of the swinging cylinder (35) is provided with a mounting tube (40), the tilting assembly (14) further comprises a sealing cover (41) fixedly arranged on the mounting tube (40), a switching rod (43) coaxially arranged in the mounting tube (40) in a sliding manner and a limiting spring (45) coaxially sleeved on the switching rod (43), a plurality of limiting protruding blocks (42) are annularly formed on the inner wall of the sealing cover (41), a plurality of limiting grooves (44) are formed on the side wall of the switching rod (43), each limiting groove (44) corresponds to each limiting protruding block (42) one by one, one end of each limiting spring (45) is connected with the sealing cover (41), the other end of each limiting spring is connected with the switching rod (43), and the rotating disc (46) is fixedly connected with the switching rod (43).

6. The multi-angle adjusting structure of a pneumatic lifting table according to claim 5, wherein two mounting slats (20) are fixedly arranged on each of the arc plate frames (16) along the vertical central surface thereof in a symmetrical state, a plurality of elastic protruding blocks (21) are elastically arranged on each of the mounting slats (20) along the length direction thereof at intervals, and arc edges (18) are arranged on each of the limiting bayonets (17).

7. The multi-angle adjusting structure of a pneumatic lifting table according to claim 6, wherein the jump-stage mechanism (5) comprises a limiting pipe (6) fixedly arranged below the table top (2), a pull rod (7) slidably arranged in the limiting pipe (6), an abutting spring (8) coaxially sleeved on the pull rod (7) and an auxiliary rope (9) with one end connected with a pull rope (37), wherein one end of the abutting spring (8) is connected with the pull rod (7), and the other end of the abutting spring is connected with the limiting pipe (6).

8. The multi-angle adjusting structure of a pneumatic lifting table according to claim 7, wherein the rotating mechanism (52) comprises a supporting seat (53) fixedly arranged on the bottom bracket (1), a top cover (63) fixedly arranged on the supporting seat (53), an annular air bag (57) arranged in the supporting seat (53), a supporting column (60) rotatably arranged on the supporting seat (53) and an inflator (59) arranged on the bottom bracket (1), an inner tube (54) and an outer tube (62) are respectively formed on the supporting seat (53), a plurality of sliding grooves (55) are formed between the inner tube (54) and the outer tube (62) in an annular mode, a plurality of limiting clamping grooves (61) are formed in the sliding grooves (55) in an elastic sliding mode, the bottoms of the supporting column (60) are in one-to-one correspondence with the sliding clamping grooves (56), the annular air bag (57) abuts against the sliding inserting rods (56), the supporting seat (53) is fixedly connected with the bottom of the pneumatic lifting table (10), and the supporting seat (53) is fixedly connected with the inflator (52) through the rotating mechanism, namely, the rotating mechanism (58) is connected with the inflator (59) through the annular air bag (52).