CN212213147U - Swivel chair tray with torsion spring force adjusted by control rod - Google Patents
Swivel chair tray with torsion spring force adjusted by control rod Download PDFInfo
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- CN212213147U CN212213147U CN202020590816.5U CN202020590816U CN212213147U CN 212213147 U CN212213147 U CN 212213147U CN 202020590816 U CN202020590816 U CN 202020590816U CN 212213147 U CN212213147 U CN 212213147U
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- torsion spring
- sleeved
- swivel chair
- locking
- plate
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Abstract
The utility model discloses a swivel chair tray of torsion spring power is adjusted to control lever, its is rational in infrastructure, and spare part is arranged compactly, shared small, and adjustable torsion spring power has solved technical problem such as inconvenient, the structure is complicated of operation. The middle of the fixing plate 1 is embedded with a taper pipe 4, the fixing plate 1 is penetrated with a first rivet 5 and a second rivet 6, the first rivet 5 is sleeved with a torsion spring 7, the second rivet 6 is sleeved with a bottom plate 2, a gear plate 3 is fixed in front of the bottom plate 2, a double-rotation-direction control rod 8 is penetrated on one side of the fixing plate 1, a left inclined block 9 and a right inclined block 10 are sleeved on the double-rotation-direction control rod 8, a left nut 11 and a right nut 12 are respectively sleeved on the outer side of the left inclined block 9 and the right inclined block 10, symmetrical inclined blocks 13 are attached to the inclined surfaces of the left inclined block 9 and the right inclined block 10, and one.
Description
Technical Field
The utility model relates to a swivel chair tray, in particular to a swivel chair tray with a control rod for adjusting torsional spring force.
Background
With the development of science and technology and the progress of society, the living level and the office condition of people are continuously improved, and the demand of the swivel chair is increased. The tray of the swivel chair is an important part arranged below the cushion of the swivel chair, and the lifting of the cushion and the inclination angle adjustment of the backrest are all completed by the chassis. At present, the back-up angle of a common swivel chair can be adjusted to meet the requirements of people on different sitting postures. The utility model discloses a swivel chair chassis is disclosed in chinese utility model patent specification CN104223821B, which comprises a base, bracket and wane, the bracket sets up in the base, the wane sets up in the bracket, the wane uses first round pin axle as the rotation fulcrum, first round pin axle passes the bracket and links to each other with the base, the wane front portion is through first connecting rod, the bracket is prized to the second connecting rod, first connecting rod passes through the third round pin axle with the second connecting rod and articulates and the third round pin axle links to each other with the bracket, the second connecting rod is worn to have second round pin axle and second round pin axle to pass or to link to each other with the base after avoiding the bracket, the track groove has been seted up at the bilateral symmetry of bracket, first round pin axle is worn to establish at the track inslot, this chassis still includes the elasticity resetting means that makes the bracket can resume the normal position after. However, the structure of the swivel chair tray is complex, the arrangement of parts is not compact, the occupied volume is large, and the operation is not convenient.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a swivel chair tray with a control rod for adjusting the force of a torsion spring, which solves the technical problems of inconvenient operation, complex structure and the like.
The utility model adopts the technical proposal that: a swivel chair tray for adjusting torsional spring force by a control rod comprises a fixing plate, wherein a taper pipe is embedded in the middle of the fixing plate, a first rivet and a second rivet are penetrated through the fixing plate, a torsional spring is sleeved on the first rivet, the second rivet is sleeved with a bottom plate, a gear plate is fixed in front of the bottom plate, a double-rotation control rod is penetrated through one side of the fixing plate, a left inclined block and a right inclined block are sleeved on the double-rotation control rod, a left-handed nut and a right-handed nut are respectively sleeved on the outer side of the double-rotation control rod, symmetrical inclined blocks are attached to the inclined surfaces of the left inclined block and the right inclined block, and one end. The rotating double-rotation-direction control rod can drive the oblique blocks to move together to push the symmetrical oblique blocks and the torsion springs, so that the force of the torsion springs can be adjusted, and the back-up force can be adjusted.
Preferably, one side of the fixing plate is penetrated with a locking stay wire which is connected with one end of a locking torsion spring, the same end of the locking torsion spring is sleeved on a locking screw, the locking screw is further sleeved with a reset torsion spring, and the other end of the locking torsion spring is connected with a locking pin. The locking of the seat is controlled, and the seat can be locked when the comfortable position is adjusted and the pull wire is pulled.
Preferably, one side of the fixing plate is penetrated with a lifting pull wire, one end of the lifting pull wire is connected with one end of the lifting pressure plate, the fixing plate is fixed with a supporting seat, the other end of the lifting pressure plate is fixed on the supporting seat, and the lifting pull wire is sleeved with a lifting pressure spring. The lifting pressure plate controls the opening and closing of the air valve, and the lifting function of the seat is realized.
Preferably, one end of the double-rotation-direction control rod is sleeved with an elastic force adjusting handle, so that the double-rotation-direction control rod is humanized in design and convenient to operate.
Preferably, the symmetrical inclined blocks are provided with grooves, so that the torsion spring is prevented from sliding out of the upper part of the symmetrical inclined blocks, and the swivel chair tray is prevented from losing the function of controlling the force of the torsion spring.
Preferably, the locking pin sleeve is provided with a locking guide pipe, and the locking pin is controlled to move in one direction and not slide out.
Preferably, the spring sheath is sleeved on the rivet I, the torsion spring is sleeved on the spring sheath, and the bushing is sleeved on the outer side of the torsion spring to protect the torsion spring and reduce the loss of the torsion spring.
Preferably, the lifting stay wire sleeve is provided with a stay wire fixing seat, and the stay wire fixing seat is fixed on the fixing plate by a self-tapping screw.
Preferably, one end of the pressure rising and reducing plate is fixed on the supporting seat through a small screw.
Compared with the prior art, the beneficial effects of the utility model are that simple structure, spare part are arranged compactly, shared small, and adjustable torsion spring power has solved technical problem such as inconvenient, the structure is complicated of operation.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the back structure of the utility model during adjusting the torsional spring force;
FIG. 3 is a schematic view of the side structure of the present invention when adjusting the torsional spring force;
FIG. 4 is a schematic view of the back structure of the utility model when the torsional spring force is increased;
fig. 5 is a schematic side view of the torsion spring according to the present invention.
Parts, positions and numbers in the drawings: the device comprises a fixing plate 1, a bottom plate 2, a gear plate 3, a taper pipe 4, a first rivet 5, a second rivet 6, a torsion spring 7, a double-rotation-direction control rod 8, a left inclined block 9, a right inclined block 10, a left-handed nut 11, a right-handed nut 12, a symmetrical inclined block 13, a locking stay wire 14, a locking torsion spring 15, a locking screw 16, a reset torsion spring 17, a locking pin 18, a lifting stay wire 19, a lifting pressing plate 20, a supporting seat 21, a locking guide pipe 22, a lining 23, a spring sheath 24, a lifting compression spring 25, a stay wire fixing seat 26, a self-tapping screw 27, a small screw 28 and an elasticity adjusting handle 29.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
A swivel chair tray for adjusting torsional spring force by a control rod comprises a fixing plate, wherein a taper pipe is embedded in the middle of the fixing plate, a first rivet 5 and a second rivet 6 penetrate through the fixing plate 1, a spring sheath 24 is sleeved on the first rivet 5, a torsion spring 7 is sleeved on the spring sheath 24, a bushing 23 is sleeved on the outer side of the torsion spring 7, a bottom plate 2 is sleeved on the second rivet 6, a gear plate 3 is fixed in front of the bottom plate 2, a double-turning control rod 8 penetrates through one side of the fixing plate 1, an elastic force adjusting handle 29 is sleeved at one end of the double-turning control rod 8, a left inclined block 9 and a right inclined block 10 are sleeved on the double-turning control rod 8, a left nut 11 and a right nut 12 are respectively sleeved on the outer sides of the left inclined block 9 and the right inclined block 10, symmetrical inclined blocks 13 are attached to the left inclined block 9 and the right inclined block 10, one end of the torsion spring 7 is positioned on a groove of the symmetrical inclined block 13, a locking, the locking screw 16 is also sleeved with a reset torsion spring 17, the other end of the locking torsion spring 15 is connected with a locking pin 18, the locking pin 18 is sleeved with a locking guide 22, one side of the fixing plate is penetrated with a lifting stay wire 19, one end of the lifting stay wire 19 is connected with one end of a lifting pressure plate 20, the lifting stay wire 19 is sleeved with a stay wire fixing seat 26, the stay wire fixing seat 26 is fixed on the fixing plate 1 by a self-tapping screw 27, the fixing plate 1 is fixed with a supporting seat 21, the other end of the lifting pressure plate 20 is fixed on the supporting seat 18 by a small. When the double-rotation-direction control rod 8 is rotated in use, the left-rotation nut 11 and the right-rotation nut 12 sleeved on the double-rotation-direction control rod can simultaneously move inwards or outwards to push the left inclined block 9 and the right inclined block 10 to move. When the left inclined block 9 and the right inclined block 10 move inwards, the symmetrical inclined block 13 attached to the inclined surfaces of the left inclined block and the right inclined block is pushed upwards by an upward force, and meanwhile, one end of the torsion spring 7 in the groove of the symmetrical inclined block 13 is pushed upwards, so that the torsion spring force is increased, as shown in the third drawing and the fourth drawing; when the left oblique block 9 and the right oblique block 10 move outwards, the symmetrical oblique blocks 13 attached to the inclined surfaces of the left oblique block and the right oblique block can move downwards due to the reduction of the upward force, and meanwhile, one ends of the torsion springs 7 in the grooves of the symmetrical oblique blocks 13 move downwards to reduce the force of the torsion springs, as shown in a first drawing and a second drawing, so that the adjustment of the back-leaning force is realized. Pulling the lifting pull wire 19 will drive one end of the lifting pressure plate 20 to move up and down, and open or close the air valve, so as to realize the lifting of the seat. Pulling the locking pull wire 14 will drive the locking torsion spring 15 and move the locking pin 18 back and forth in the locking guide tube 22 to achieve the locking function of the seat.
While the preferred embodiments of the present invention have been illustrated in detail in the accompanying drawings, the invention is not limited to the embodiments, and various changes can be made without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides a swivel chair tray of torsion spring power is adjusted to control lever, includes fixed plate (1), its characterized in that: the middle of the fixing plate (1) is embedded with a taper pipe (4), the fixing plate (1) is penetrated with a first rivet (5) and a second rivet (6), the first rivet (5) is sleeved with a torsion spring (7), the second rivet (6) is sleeved with a bottom plate (2), a gear plate (3) is fixed in front of the bottom plate (2), a double-rotation-direction control rod (8) is penetrated on one side of the fixing plate (1), a left inclined block (9) and a right inclined block (10) are sleeved on the double-rotation-direction control rod (8), a left-handed nut (11) and a right-handed nut (12) are respectively sleeved on the outer side of the double-rotation-direction control rod, symmetrical inclined blocks (13) are attached to the inclined surfaces of the left inclined block (9) and the right inclined block (10), and one end of.
2. A swivel chair tray with a lever to adjust torsion spring force according to claim 1, wherein: one side of the fixing plate (1) is penetrated with a locking pull wire (14) which is connected with one end of a locking torsion spring (15), the same end of the locking torsion spring (15) is sleeved on a locking screw (16), the locking screw (16) is further sleeved with a reset torsion spring (17), the locking screw (16) is fixed on the fixing plate (1), and the other end of the locking torsion spring (15) is connected with a locking pin (18).
3. A swivel chair tray with a control lever for adjusting the torsion spring force according to claim 1 or 2, wherein: one side of the fixed plate (1) is penetrated with a lifting pull wire (19), one end of the lifting pull wire is connected with one end of the pressure rising and reducing plate (20), the fixed plate (1) is fixed with a supporting seat (21), the other end of the pressure rising and reducing plate (20) is fixed on the supporting seat (21), and the lifting pull wire (19) is sleeved with a lifting pressure spring (25).
4. A swivel chair tray with a lever to adjust the torsion spring force according to claim 3, wherein: the lifting stay wire (19) is sleeved with a stay wire fixing seat (26), and the stay wire fixing seat (26) is fixed on the fixing plate (1) by a self-tapping screw (27).
5. A swivel chair tray with a control lever to adjust the torsion spring force according to claim 4, wherein: the spring sheath (24) is sleeved on the rivet I (5), the torsion spring (7) is sleeved on the spring sheath (24), and the bushing (23) is sleeved on the outer side of the torsion spring (7).
6. A swivel chair tray with a control lever to adjust the torsion spring force according to claim 5, wherein: one end of the double-rotation-direction control rod (8) is sleeved with an elastic force adjusting handle (29).
7. A swivel chair tray with a control lever to adjust the torsion spring force according to claim 6, wherein: the symmetrical inclined blocks (13) are provided with grooves matched with the shape of one end of the torsion spring (7).
8. A swivel chair tray with a lever to adjust the torsion spring force according to claim 7, wherein: the locking pin (18) is sleeved with a locking guide pipe (22).
9. A swivel chair tray for a lever to adjust torsion spring force according to claim 8, wherein: one end of the pressure rising and reducing plate (20) is fixed on the supporting seat by a small screw (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020590816.5U CN212213147U (en) | 2020-04-20 | 2020-04-20 | Swivel chair tray with torsion spring force adjusted by control rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020590816.5U CN212213147U (en) | 2020-04-20 | 2020-04-20 | Swivel chair tray with torsion spring force adjusted by control rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212213147U true CN212213147U (en) | 2020-12-25 |
Family
ID=73908189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020590816.5U Active CN212213147U (en) | 2020-04-20 | 2020-04-20 | Swivel chair tray with torsion spring force adjusted by control rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212213147U (en) |
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2020
- 2020-04-20 CN CN202020590816.5U patent/CN212213147U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210113 Address after: 311256 Yiqiao Village, Yiqiao Town, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee after: Hangzhou Yiwei Industrial Co.,Ltd. Address before: No.88 Xinxia Road, Yiqiao Town, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee before: YOUNG HANGZHOU INDUSTRIAL Co.,Ltd. |