CN201687905U - Rack lifting mechanism - Google Patents
Rack lifting mechanism Download PDFInfo
- Publication number
- CN201687905U CN201687905U CN2010201213676U CN201020121367U CN201687905U CN 201687905 U CN201687905 U CN 201687905U CN 2010201213676 U CN2010201213676 U CN 2010201213676U CN 201020121367 U CN201020121367 U CN 201020121367U CN 201687905 U CN201687905 U CN 201687905U
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- China
- Prior art keywords
- tooth bar
- guide pin
- pin bushing
- directional post
- gear
- 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
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Abstract
The utility module relates to a lifting mechanism which is provided with a rack and a gear that are meshed with each other, aiming at overcoming the defects that the rack in the prior art is in an open state so as to be easily separated from the gear, thus having potential safety hazard. The rack lifting mechanism comprises a guide post and a guide sleeve arranged on the guide post, wherein the guide sleeve is sheathed on the guide post; the side wall of the guide post is provided with the rack; the guide sleeve is provided with the gear which is meshed with the rack and drives the guide sleeve to move up and down along the guide post; and the guide sleeve is also provided with a locking mechanism. The guide sleeve is sheathed and connected with the guide post, used for limiting the guide post and surrounds the rack on the guide post, thus ensuring that the rack and the gear can not easily get off; furthermore, eccentric rotating structure is adopted by the locking mechanism, therefore, the rack lifting mechanism has simple structure, needs fewer parts, and is convenient for operation and lower in cost.
Description
Technical field
The utility model relates to a kind of elevator mechanism, the elevator mechanism that especially a kind of rack and pinion is meshed.
Background technique
All can use various liftings or extending means in the amusement in the life now, be used for regulating height or extrusion, so that adapt to various occasion needs.
A CN200958570Y patent such as Patent Office of the People's Republic of China's bulletin on October 10th, 2007, name is called lifting/lowering type tooth bar case, form by motor fixed hole, tooth bar cover plate fixed hole, gear, tooth bar and rach slot, motor, tooth bar case and gear are fixed together, tooth bar be fixed on the base and rach slot in, wheel and rack is connected with a joggle, and tooth bar is in fixedly shape.Though the energy oscilaltion, the wheel and rack engagement is if be fixed on a height with the tooth bar case, then stop motor, need motor to bear gravity, bring bigger burden to motor, effect is also undesirable, and tooth bar is in open architecture, easy and gear disengaging.
Announced a CN100526202C patent on August 12nd, 2009 such as Patent Office of the People's Republic of China again, name is called vertical lift and locking device, form by vertical lifting mechanism and locking mechanism, vertical lifting mechanism comprises stationary rack, left side lifter wheel, left side motor, left side bearing table frame, right lifter wheel, right motor, right bearing table frame, left side lifter wheel is meshed with the tooth of stationary rack left part, right lifter wheel is meshed with the tooth of stationary rack right part, the output shaft of left side lifter wheel and left motor links, the output shaft of right lifter wheel and right motor links, left side motor is fixed on the left bearing table frame, right motor is fixed on the right bearing table frame left bearing table frame, right bearing table frame links with bearing table respectively; Locking mechanism comprises first order locking mechanism, and first order locking mechanism is made up of first order left side locking mechanism and the right locking mechanism of the first order.Though increased locking mechanism, this locking mechanism structure more complicated, and be subjected to the influence of rack structure, and locking mechanism is wanted the Symmetrical rack setting, the lowering or hoisting gear complicated integral structure, and cost is higher, and locking operation is cumbersome.
Summary of the invention
The utility model has solved the prior art middle rack and has been in open state, and easy and gear is separated, and has the shortcoming of potential safety hazard, and a kind of tooth bar elevator mechanism simple in structure is provided, and tooth bar is in state of siege, can not deviate from, and improves elevating safety.
Though the utility model has also solved locking mechanism is arranged in the prior art, but complex structure, cost is higher, and operation is the shortcoming of trouble, provides a kind of simple in structure, and cost is lower, easy to operate tooth bar elevator mechanism.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of tooth bar elevator mechanism, comprise directional post and be arranged on guide pin bushing on the directional post, guide pin bushing is nested with on directional post, the sidewall of directional post is provided with tooth bar, guide pin bushing is provided with and is meshed with tooth bar and can drives the gear that guide pin bushing moves up and down along directional post, also is provided with locking mechanism on the guide pin bushing.Rack and pinion is meshed, gear is fixed on the guide pin bushing, swing pinion, just driving guide pin bushing moves up and down along directional post, thereby realize the function of lifting, the wheel and rack engagement can guarantee the precision of lifting, guide pin bushing is nested with outside directional post, can surround the tooth bar on the directional post, thereby prevents that rack and pinion is separated, guarantee the security and stability of lifting, the auxiliary guide pin bushing of locking mechanism is fixed to any position of directional post, and locking mechanism can adopt various ways, such as eccentric wheel structure, rotation ejecting structure, perhaps spring compression structure etc.
As preferably, offer vertical slot on the sidewall of directional post, the parallel axes of vertical slot and directional post, tooth bar is embedded in the vertical slot.Tooth bar is fixed in the vertical slot, and tooth bar and vertical slot do not relatively move, and tooth bar also can directly be fixed on the sidewall of directional post, and tooth bar is fixed to then can reduced volume in the vertical slot.
As preferably, directional post is a pipe, circular hole in the middle of the guide pin bushing, and circular hole and directional post match.Directional post also can be other shapes such as square tube, and the hole that matches with the directional post profile in the middle of the guide pin bushing makes directional post be inserted in the guide pin bushing.
As preferably, have slotted hole in the guide pin bushing, the flank of tooth of gear is exposed to outside the slotted hole and with tooth bar and meshes, and guide pin bushing is provided with the handwheel that is connected with gear.The flank of tooth of gear and tooth bar are in engagement all the time, rotate handwheel and just can regulate the position of guide pin bushing on directional post; Realize if desired handwheel to be connected automatic rotating device automatically.
As preferably, locking mechanism comprises plug that is fixed on the guide pin bushing and the handle that is connected with plug, the end of handle is fixed with rotating shaft, the front end of plug is provided with gear shaping, the rear end of plug is provided with jack, rotating shaft and jack match, and the end of rotating shaft is provided with the eccentric shaft that is connected with guide pin bushing, and the throw of eccentric of eccentric shaft is more than or equal to the distance of the flank engagement on gear shaping and the tooth bar.Eccentric rotation axis, eccentric shaft drives the rotating shaft rotation, makes rotating shaft do eccentric rotation, moves thereby promote plug, the gear shaping of plug is meshed with tooth bar or separates, gear shaping is with after tooth bar separates, and locking mechanism unclamps, and just can promote guide pin bushing and move up and down along directional post this moment, gear shaping and tooth bar engagement, locking mechanism locking, because eccentric effect, plug can not unclamp automatically.
As preferably, the position that guide pin bushing is placed plug is step-like, the plush copper shape of the gear shaping end of plug for matching with step.Step and plush copper match, and the corner of step can carry out spacing to plug, can move the straight line of plug simultaneously and lead, and make the gear shaping of plug ends successfully to be meshed with tooth bar.
As preferably, the handle side is S-shaped, and the front of handle tail end and back are provided with some anti-skidding raised lines.The anti-skidding raised line of handle can be anti-skidding, increases frictional force when breaking active handle off with the fingers and thumb.
The beneficial effects of the utility model are: the mutual socket of guide pin bushing and directional post, and guide pin bushing is spacing to directional post, surrounds the tooth bar on the directional post simultaneously, make rack and pinion be not easy, locking mechanism adopts eccentric rotational structure, and is simple in structure, the use parts are few, and are easy to operate, and cost is lower.
Description of drawings
Fig. 1 is a kind of perspective view of the utility model;
Fig. 2 is a kind of locking state sectional view of the utility model;
Fig. 3 is a kind of releasing orientation sectional view of the utility model;
Among the figure: 1, directional post, 2, through hole, 3, vertical slot, 4, tooth bar, 5, gear, 6, handle, 7, handwheel, 8, guide pin bushing, 9, the holding part, 10, anti-skidding raised line, 11, plug, 12, rotating shaft, 13, gear shaping.
Embodiment
Below by specific embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: a kind of tooth bar elevator mechanism (referring to accompanying drawing 1), comprise directional post 1 and be nested with guide pin bushing 8 on directional post, the pipe of band through hole in the middle of the directional post 1, offer square vertical slot 3 on the sidewall of directional post 1, the parallel axes of vertical slot 3 and directional post 1, the cell wall of vertical slot 3 is toward directional post 1 interior curve, vertical slot 3 is embedded with tooth bar 4, the flank of tooth of tooth bar 4 is towards the outside, the two ends of tooth bar 4 are the handheld terminal 9 that has concave surface, the centre of guide pin bushing 8 has circular hole, circular hole and directional post 1 match, the sidewall of guide pin bushing 8 offers and cracks 9, crack 9 both sides are screwed, have slotted hole in the guide pin bushing 8, be provided with gear 5 in the slotted hole, the flank of tooth of gear 5 is exposed to outside the slotted hole and with tooth bar 4 and meshes all the time, also be provided with the handwheel of fixing with gear 57 on the guide pin bushing 8, handwheel 7 is colored shape, be provided with step hole in the guide pin bushing 8, be placed with the plug that is the plush copper shape 11 that matches with step hole in the step hole, the front end of plug 11 is a gear shaping 13, and gear shaping 13 is meshed with the flank of tooth of tooth bar 4, the rear end of plug 11 is provided with axis hole, be installed with rotating shaft 12 in the axis hole, the two ends of rotating shaft 12 are provided with eccentric shaft, and eccentric shaft is connected on the guide pin bushing 8, the throw of eccentric of eccentric shaft is greater than the distance of the flank engagement on gear shaping 13 and the tooth bar 4, the end position of rotating shaft 12 is fixed with handle 6, and handle 6 is S-shaped wide, and the front of handle 6 tail ends and back are provided with 3 anti-skidding raised lines 10.
Locking mechanism is formed in handle, plug, rotating shaft, gear 5 meshes all the time with tooth bar 4, up breaks active handle off with the fingers and thumb, the eccentric rotation of rotating shaft, unclamp plug 11, the gear shaping 13 of plug 11 ends is separated with tooth bar 4, and rotating 7 on handwheel this moment can the position of up-down adjustment guide pin bushing 8 on directional post 1, then breaks off with the fingers and thumb under the handle, gear shaping 13 is inserted into the flank of tooth of tooth bar 4 and is meshed, under the active force of off-centre, plug is locked at guide pin bushing on the directional post, thereby fixes guide pin bushing.
Above-described embodiment is a kind of preferred version of the present utility model, is not the utility model is done any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technological scheme that claim puts down in writing.
Claims (7)
1. tooth bar elevator mechanism, comprise directional post and be arranged on guide pin bushing on the directional post, it is characterized in that guide pin bushing is nested with on directional post, the sidewall of directional post is provided with tooth bar, guide pin bushing is provided with and is meshed with tooth bar and can drives the gear that guide pin bushing moves up and down along directional post, also is provided with locking mechanism on the guide pin bushing.
2. tooth bar elevator mechanism according to claim 1 is characterized in that offering vertical slot on the sidewall of directional post, the parallel axes of vertical slot and directional post, and tooth bar is embedded in the vertical slot.
3. tooth bar elevator mechanism according to claim 1 and 2 is characterized in that directional post is a pipe, circular hole in the middle of the guide pin bushing, and circular hole and directional post match.
4. tooth bar elevator mechanism according to claim 1 and 2 is characterized in that having in the guide pin bushing slotted hole, and the flank of tooth of gear is exposed to outside the slotted hole and with tooth bar and meshes, and guide pin bushing is provided with the handwheel that is connected with gear.
5. tooth bar elevator mechanism according to claim 1, it is characterized in that locking mechanism comprises plug that is fixed on the guide pin bushing and the handle that is connected with plug, the end of handle is fixed with rotating shaft, the front end of plug is provided with gear shaping, the rear end of plug is provided with jack, rotating shaft and jack match, and the end of rotating shaft is provided with the eccentric shaft that is connected with guide pin bushing, and the throw of eccentric of eccentric shaft is more than or equal to the distance of the flank engagement on gear shaping and the tooth bar.
6. tooth bar elevator mechanism according to claim 5 is characterized in that it is step-like that guide pin bushing is placed the position of plug, and the gear shaping end of plug is the plush copper shape that matches with step.
7. according to claim 5 or 6 described tooth bar elevator mechanisms, it is characterized in that the handle side is S-shaped, the front of handle tail end and back are provided with some anti-skidding raised lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201213676U CN201687905U (en) | 2010-03-02 | 2010-03-02 | Rack lifting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201213676U CN201687905U (en) | 2010-03-02 | 2010-03-02 | Rack lifting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201687905U true CN201687905U (en) | 2010-12-29 |
Family
ID=43376185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201213676U Expired - Fee Related CN201687905U (en) | 2010-03-02 | 2010-03-02 | Rack lifting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201687905U (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245525A (en) * | 2013-04-10 | 2013-08-14 | 奇瑞汽车股份有限公司 | Power lithium-ion battery sampling device |
| CN103460871A (en) * | 2013-09-23 | 2013-12-25 | 湖州天和机械有限公司 | High-efficiency agricultural machinery sprocket wheel transmission assembly |
| CN104192763A (en) * | 2014-08-22 | 2014-12-10 | 太原理工大学 | Automatic lifting mechanism for honing wheel electroplating |
| CN105414869A (en) * | 2015-12-11 | 2016-03-23 | 荣成同方节能服务有限公司 | Auxiliary equipment for welding overhead pipeline |
| CN107100565A (en) * | 2017-05-17 | 2017-08-29 | 上海兰石重工机械有限公司 | The hydraulic back-up tongs that vertical float is positioned and locked |
| CN107143577A (en) * | 2017-04-25 | 2017-09-08 | 华北计算技术研究所（中国电子科技集团公司第十五研究所） | One kind is adjustable arbitrarily to stop elevating mechanism |
| CN108000857A (en) * | 2017-11-30 | 2018-05-08 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of high-pressure turbine guide vane (IGV) assembly high frequency heat school type device |
| CN108223733A (en) * | 2018-03-13 | 2018-06-29 | 重庆睿恩光电子有限责任公司 | A kind of elevating mechanism |
| CN108284215A (en) * | 2018-03-05 | 2018-07-17 | 重庆市梁平区宏富贵农机设备制造有限公司 | Cast insulated bag |
| CN108556024A (en) * | 2018-06-14 | 2018-09-21 | 重庆曹浩思瑗电子商务有限公司 | Clothing fixing device |
| CN110360283A (en) * | 2019-08-02 | 2019-10-22 | 深圳怡化电脑股份有限公司 | A kind of transmission mechanism and finance device with the defencive function that crosses the border |
| CN110920266A (en) * | 2019-12-09 | 2020-03-27 | 得力集团有限公司 | Stylus printer and multi-connection adjusting mechanism thereof |
| CN111993346A (en) * | 2020-08-21 | 2020-11-27 | 周磊 | Rack locking device for ocean engineering |
| CN112049845A (en) * | 2020-08-19 | 2020-12-08 | 嘉兴坤德精密机械有限公司 | Telescopic device for precision instrument |
| CN112676751A (en) * | 2020-12-28 | 2021-04-20 | 天津巴泰克汽车装备有限公司 | Car welding jig is with convenient lifting control's mesa base |
| CN114453807A (en) * | 2022-03-08 | 2022-05-10 | 公元股份有限公司 | Machine head height adjusting structure of rotary welding machine |
-
2010
- 2010-03-02 CN CN2010201213676U patent/CN201687905U/en not_active Expired - Fee Related
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245525A (en) * | 2013-04-10 | 2013-08-14 | 奇瑞汽车股份有限公司 | Power lithium-ion battery sampling device |
| CN103460871A (en) * | 2013-09-23 | 2013-12-25 | 湖州天和机械有限公司 | High-efficiency agricultural machinery sprocket wheel transmission assembly |
| CN104192763A (en) * | 2014-08-22 | 2014-12-10 | 太原理工大学 | Automatic lifting mechanism for honing wheel electroplating |
| CN104192763B (en) * | 2014-08-22 | 2016-05-25 | 太原理工大学 | A kind of top gem of a girdle-pendant wheel is electroplated automatic hoisting mechanism |
| CN105414869A (en) * | 2015-12-11 | 2016-03-23 | 荣成同方节能服务有限公司 | Auxiliary equipment for welding overhead pipeline |
| CN107143577A (en) * | 2017-04-25 | 2017-09-08 | 华北计算技术研究所（中国电子科技集团公司第十五研究所） | One kind is adjustable arbitrarily to stop elevating mechanism |
| CN107143577B (en) * | 2017-04-25 | 2019-06-04 | 华北计算技术研究所（中国电子科技集团公司第十五研究所） | One kind is adjustable arbitrarily to stop elevating mechanism |
| CN107100565A (en) * | 2017-05-17 | 2017-08-29 | 上海兰石重工机械有限公司 | The hydraulic back-up tongs that vertical float is positioned and locked |
| CN108000857A (en) * | 2017-11-30 | 2018-05-08 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of high-pressure turbine guide vane (IGV) assembly high frequency heat school type device |
| CN108284215A (en) * | 2018-03-05 | 2018-07-17 | 重庆市梁平区宏富贵农机设备制造有限公司 | Cast insulated bag |
| CN108223733B (en) * | 2018-03-13 | 2023-07-14 | 睿恩光电有限责任公司 | Lifting mechanism |
| CN108223733A (en) * | 2018-03-13 | 2018-06-29 | 重庆睿恩光电子有限责任公司 | A kind of elevating mechanism |
| CN108556024A (en) * | 2018-06-14 | 2018-09-21 | 重庆曹浩思瑗电子商务有限公司 | Clothing fixing device |
| CN110360283A (en) * | 2019-08-02 | 2019-10-22 | 深圳怡化电脑股份有限公司 | A kind of transmission mechanism and finance device with the defencive function that crosses the border |
| CN110920266A (en) * | 2019-12-09 | 2020-03-27 | 得力集团有限公司 | Stylus printer and multi-connection adjusting mechanism thereof |
| CN112049845A (en) * | 2020-08-19 | 2020-12-08 | 嘉兴坤德精密机械有限公司 | Telescopic device for precision instrument |
| CN112049845B (en) * | 2020-08-19 | 2021-11-26 | 嘉兴坤德精密机械有限公司 | Telescopic device for precision instrument |
| CN111993346A (en) * | 2020-08-21 | 2020-11-27 | 周磊 | Rack locking device for ocean engineering |
| CN111993346B (en) * | 2020-08-21 | 2022-04-08 | 峡江县慧泓信息技术有限公司 | Rack locking device for ocean engineering |
| CN112676751A (en) * | 2020-12-28 | 2021-04-20 | 天津巴泰克汽车装备有限公司 | Car welding jig is with convenient lifting control's mesa base |
| CN114453807A (en) * | 2022-03-08 | 2022-05-10 | 公元股份有限公司 | Machine head height adjusting structure of rotary welding machine |
| CN114453807B (en) * | 2022-03-08 | 2023-11-03 | 公元股份有限公司 | Head height adjusting structure of rotary welding machine |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20170302 |