CN203576039U - Chair tray with torsion adjusting mechanism of reset torsional spring - Google Patents
Chair tray with torsion adjusting mechanism of reset torsional spring Download PDFInfo
- Publication number
- CN203576039U CN203576039U CN201320681583.XU CN201320681583U CN203576039U CN 203576039 U CN203576039 U CN 203576039U CN 201320681583 U CN201320681583 U CN 201320681583U CN 203576039 U CN203576039 U CN 203576039U
- Authority
- CN
- China
- Prior art keywords
- adjusting mechanism
- torsion spring
- torque force
- force adjusting
- tray
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Chairs Characterized By Structure (AREA)
Abstract
The utility model discloses a chair tray with a torsion adjusting mechanism of a reset torsional spring. The chair tray comprises a tray body which comprises a torsion adjusting mechanism of the reset torsional spring, a big disc group for being connected with a chair seat, an overturning cover for being connected with the chair back and a middle disc group for being connected with a pressure rod, wherein the torsion adjusting mechanism of the reset torsional spring comprises a torsion adjusting mechanism body which comprises a shell and a reset torsional spring arranged on a first pivot in a sleeving manner; a pull rod is arranged next to the reset torsional spring, one end of the pull rod is connected with one end of the reset spring, and the other end, corresponding to the reset torsional spring, of the pull rod is an outer threaded end; the torsion adjusting mechanism body further comprises an extension handle, a worm gear which can be in thread engagement and transmission with the outer threaded end of the pull rod and a worm which is engaged and matched with the worm gear. The extension handle comprises a connecting section and an operating section. One end of the connecting section is connected with the worm while the other end of the connecting section is hinged with one end of the operating section. The chair tray disclosed by the utility model is more compact in integral design structure.
Description
Technical field
The utility model relates to a kind of chair tray technical field, is specifically related to a kind of chair tray with reset torsion spring torque force adjusting mechanism.
Background technology
The chair tray with seat support elevating function, seat support reclining and chair back-rest inclination function generally includes mid-game group for being connected with air pressure rod, for renovating of being connected with the chair back and the deep bid group for being connected with seat support, connecting the pivot of deep bid group and mid-game group, be connected on the pivot of renovating with deep bid group and be conventionally provided with the reduction torsion spring for resetting.Will there is variation to a certain extent in reduction torsion spring its torsion after the access times through certain, in prior art, most chair trays do not have the mechanism for reset torsion spring torque force is regulated, thereby the torsion that causes torque spring is excessive or too small, cause the inconvenience on using.
The patent No. is to disclose a kind of chair tray reset torsion spring torque force governor motion in 200920112491.3 Chinese patent, it comprises the reduction torsion spring being sheathed on chair tray pivot, the other pull bar that is provided with of described reduction torsion spring, one end of described pull bar is connected with one end of reduction torsion spring, the other end of described pull bar forms male end, the male end of described pull bar coordinates with the screwed hole of centre with worm gear, described worm gear and one has the worm engaging of extending handle, by extending handle rotation, can cause pull bar to drive worm gear to rotate, worm gear coordinates and can cause pull bar to move axially with the external screw thread of pull bar, thereby moving axially of pull bar can drive one end of reduction torsion spring reduction torsion spring is tightened or loosen, with this, overcome above-mentioned defect, but the design of extending handle due to this chair tray reset torsion spring torque force governor motion is in use non-retractable, and such design can cause the not compact defect of whole chair tray global design structure.
Utility model content
The deficiency existing for prior art, the utility model provides the chair tray with reset torsion spring torque force adjusting mechanism, and the structural design that this chair tray with reset torsion spring torque force adjusting mechanism has improved extension handle makes the global design structure of chair tray compacter.
For achieving the above object, the utility model provides following technical scheme: a kind of chair tray with reset torsion spring torque force adjusting mechanism, comprise tray body, described tray body comprises reset torsion spring torque force adjusting mechanism, for the deep bid group being connected with seat support, for renovating of being connected with the chair back and mid-game group for being connected with air pressure rod, the first pivot for pivotally connected mid-game group and deep bid group, for pivotally connected the second pivot of renovating with deep bid group, described reset torsion spring torque force adjusting mechanism comprises torque force adjusting mechanism body, described torque force adjusting mechanism body comprises housing and is sheathed on the reduction torsion spring on the first pivot, the other pull bar that is provided with of described reduction torsion spring, one end of described pull bar is connected with one end of reduction torsion spring, the other end of the corresponding reduction torsion spring of described pull bar is male end, described torque force adjusting mechanism body also comprises extension handle, can with pull bar male end form screw-threaded engagement transmission worm gear and can with worm gear engagement fit worm screw, described extension handle comprises linkage section and lever piece, one end of described linkage section is connected with worm screw, one end of the other end and lever piece is hinged.
The utility model is further set to, the hinged side of described linkage section and lever piece be provided with along himself, axially arrange, for placing the groove of lever piece.
By adopting technique scheme, extend handle and comprise linkage section and lever piece, lever piece and linkage section are hinged, can improve the integrally-built compactedness of whole chair tray; In linkage section, setting can supply placement lever piece groove, while not needing to regulate reset torsion spring torque force at ordinary times, just lever piece can not rotated around pin joint, lever piece is received in groove, and such design just can further improve the integrally-built compactedness of whole chair tray.
The utility model is further set to, the position at the described corresponding worm screw of housing two ends is respectively equipped with the through hole passing through for extending handle, described worm screw is provided with the inner hexagonal hole with the coaxial setting of through hole, and one end that described linkage section is connected with worm screw forms the outer-hexagonal structure with interior hexagonal phase adaptation.
By adopting technique scheme, worm screw arranges inner hexagonal hole, linkage section arranges the outer-hexagonal structure suitable with inner hexagonal hole, when needs regulate torsion, only the outer-hexagonal structure of extending handle need be inserted in the inner hexagonal hole of worm screw, while not needing to regulate, can extract extending handle, such design can make whole chair tray global design structure more compact.
The utility model is further set to, and the other end of the described relative linkage section of lever piece is arranged with rubber sleeve, and described rubber sleeve surface is provided with some concave points.
By adopting technique scheme, the design of rubber sleeve, and be provided with some concave points on rubber sleeve surface, such design just can improve the frictional force of hand and lever piece, to regulating reset torsion spring torque force convenient.
Accompanying drawing explanation
Fig. 1 is the structural representation of the chair tray of the utility model band reset torsion spring torque force adjusting mechanism;
Fig. 2 is the structural representation of the chair tray embodiment reset torsion spring torque force adjusting mechanism of the utility model band reset torsion spring torque force adjusting mechanism;
Fig. 3 is the structural representation that the chair tray embodiment worm and gear of the utility model band reset torsion spring torque force adjusting mechanism coordinates.
Reference numeral: 1, reset torsion spring torque force adjusting mechanism; 11, torque force adjusting mechanism body; 111, housing; 112, extend handle; 1121, linkage section; 11211, groove; 11212, outer-hexagonal structure; 1122, lever piece; 113, worm gear; 114, worm screw; 1141, inner hexagonal hole; 2, deep bid group; 3, renovate; 4, mid-game group; 5, the second pivot; 6, rubber sleeve; 61, concave point; 7, pin.
The specific embodiment
Referring to figs. 1 through Fig. 3, the chair tray embodiment of the utility model band reset torsion spring torque force adjusting mechanism is described further.
A kind of chair tray with reset torsion spring torque force adjusting mechanism, comprise tray body, described tray body comprises reset torsion spring torque force adjusting mechanism 1, for the deep bid group 2 being connected with seat support, for be connected with the chair back renovate 3 with mid-game group 4 for being connected with air pressure rod, the first pivot for pivotally connected mid-game group 4 with deep bid group 2, for pivotally connected, renovate 3 and the second pivot 5 of deep bid group 2, described reset torsion spring torque force adjusting mechanism 1 comprises torque force adjusting mechanism body 11, described torque force adjusting mechanism body 11 comprises housing 111 and is sheathed on the reduction torsion spring (unmarked in figure) on the first pivot, the other pull bar that is provided with of described reduction torsion spring, one end of described pull bar is connected with one end of reduction torsion spring, the other end of the corresponding reduction torsion spring of described pull bar is male end, described torque force adjusting mechanism body 11 also comprises extension handle 112, can with the worm gear 113 of pull bar male end screw-threaded engagement transmission and can with worm gear 113 engagement fit worm screws 114, described extension handle 112 comprises linkage section 1121 and lever piece 1122, one end of described linkage section 1121 is connected with worm screw 114, the other end and lever piece 1122 are hinged by pin 7.
The hinged side of described linkage section 1121 and lever piece 1122 be provided with along himself, axially arrange, for placing the groove 11211 of lever piece 1122.
By adopting technique scheme, extend handle 112 and comprise linkage section 1121 and lever piece 1122, lever piece 1122 is hinged with linkage section 1121, can improve the integrally-built compactedness of whole chair tray; In linkage section 1121, setting can supply placement lever piece 1122 grooves 11211, while not needing to regulate reset torsion spring torque force at ordinary times, just lever piece 1122 can not rotated around pin joint, lever piece 1122 is received in groove 11211, and such design just can further improve the integrally-built compactedness of whole chair tray.
The position at the described corresponding worm screw of housing 114 two ends is respectively equipped with the through hole passing through for extending handle 112, described worm screw 114 is provided with the inner hexagonal hole 1141 with the coaxial setting of through hole, and one end that described linkage section 1121 is connected with worm screw 114 forms the outer-hexagonal structure 11212 with interior hexagonal phase adaptation.
By adopting technique scheme, worm screw 114 arranges inner hexagonal hole 1141, linkage section 1121 arranges the outer-hexagonal structure 11212 suitable with inner hexagonal hole 1141, when needs regulate torsion, only the outer-hexagonal structure 11212 of extending handle 112 need be inserted in the inner hexagonal hole 1141 of worm screw 114, while not needing to regulate, can extract extending handle 112, such design can make whole chair tray global design structure more compact.
The other end of described lever piece 1122 relative linkage sections 1121 is arranged with rubber sleeve 6, and described rubber sleeve 6 surfaces are provided with some concave points 61.
By adopting technique scheme, the design of rubber sleeve 6, and be provided with some concave points 61 on rubber sleeve 6 surfaces, such design just can improve the frictional force of hand and lever piece 1122, to regulating reset torsion spring torque force convenient.
Claims (4)
1. the chair tray with reset torsion spring torque force adjusting mechanism, comprise tray body, described tray body comprises reset torsion spring torque force adjusting mechanism, for the deep bid group being connected with seat support, for renovating of being connected with the chair back and mid-game group for being connected with air pressure rod, the first pivot for pivotally connected mid-game group and deep bid group, for pivotally connected the second pivot of renovating with deep bid group, described reset torsion spring torque force adjusting mechanism comprises torque force adjusting mechanism body, described torque force adjusting mechanism body comprises housing and is sheathed on the reduction torsion spring on the first pivot, the other pull bar that is provided with of described reduction torsion spring, one end of described pull bar is connected with one end of reduction torsion spring, the other end of the corresponding reduction torsion spring of described pull bar is male end, it is characterized in that: described torque force adjusting mechanism body also comprises extension handle, can with pull bar male end form screw-threaded engagement transmission worm gear and can with worm gear engagement fit worm screw, described extension handle comprises linkage section and lever piece, one end of described linkage section is connected with worm screw, one end of the other end and lever piece is hinged.
2. the chair tray with reset torsion spring torque force adjusting mechanism according to claim 1, is characterized in that: the hinged side of described linkage section and lever piece is provided with along himself axially setting, for placing the groove of lever piece.
3. the chair tray with reset torsion spring torque force adjusting mechanism according to claim 2, it is characterized in that: the position at the described corresponding worm screw of housing two ends is respectively equipped with the through hole passing through for extending handle, described worm screw is provided with the inner hexagonal hole with the coaxial setting of through hole, and one end that described linkage section is connected with worm screw forms the outer-hexagonal structure with interior hexagonal phase adaptation.
4. the chair tray with reset torsion spring torque force adjusting mechanism according to claim 1 and 2, is characterized in that: the other end of the described relative linkage section of lever piece is arranged with rubber sleeve, and described rubber sleeve surface is provided with some concave points.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320681583.XU CN203576039U (en) | 2013-10-31 | 2013-10-31 | Chair tray with torsion adjusting mechanism of reset torsional spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320681583.XU CN203576039U (en) | 2013-10-31 | 2013-10-31 | Chair tray with torsion adjusting mechanism of reset torsional spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203576039U true CN203576039U (en) | 2014-05-07 |
Family
ID=50574030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320681583.XU Expired - Fee Related CN203576039U (en) | 2013-10-31 | 2013-10-31 | Chair tray with torsion adjusting mechanism of reset torsional spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203576039U (en) |
-
2013
- 2013-10-31 CN CN201320681583.XU patent/CN203576039U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2009028938A3 (en) | Adjustable valve | |
| TWI574795B (en) | Easy to adjust the torque of the wrench | |
| US10836288B2 (en) | Seat armrest | |
| GB2563957A (en) | Folding torque wrench with fast adjustable torque value | |
| CN203692988U (en) | Elastic chassis structure of arm-chair | |
| CN203576039U (en) | Chair tray with torsion adjusting mechanism of reset torsional spring | |
| CN203576042U (en) | Torsion adjusting mechanism of reset torsional spring of chair tray | |
| CN106870751A (en) | A kind of gate brakes spherical valve regulation current mechanism | |
| TWI638708B (en) | Torque adjustable one-way screwdriver | |
| CN201341637Y (en) | Chair tray | |
| CN202435987U (en) | Fishing reel | |
| WO2005120149A3 (en) | Adjustable bent housing | |
| CN105276206B (en) | A kind of torque limiting apparatus and the valve with the torque limiting apparatus | |
| CN208545799U (en) | Movable stand and elevating lever | |
| CN201995958U (en) | Drive-by-wire switch for controlling inclination angle of chair back | |
| CN205554483U (en) | Pump is gone up in motorcycle brake | |
| CN204306436U (en) | Chair tray torsion spring torque force adjusting mechanism | |
| CN203576040U (en) | Torsion adjusting mechanism of reset spring of chair tray | |
| CN104223816A (en) | Folding pad | |
| CN2920569Y (en) | Insert changing tool structure | |
| CN204723001U (en) | A kind of hand rotary mop rod for drag slab | |
| CN203790514U (en) | Torsion regulating mechanism | |
| CN213117696U (en) | Manual test valve of steam extraction check valve | |
| CN209126525U (en) | A kind of regulating device for handling position of shifting gears | |
| CN201415383Y (en) | Electric screwdriver |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20171031 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |