CN203667898U - Lifting device convenient to adjust by hand - Google Patents
Lifting device convenient to adjust by hand Download PDFInfo
- Publication number
- CN203667898U CN203667898U CN201320753835.5U CN201320753835U CN203667898U CN 203667898 U CN203667898 U CN 203667898U CN 201320753835 U CN201320753835 U CN 201320753835U CN 203667898 U CN203667898 U CN 203667898U
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- CN
- China
- Prior art keywords
- screw rod
- bearing
- upper bush
- convenient
- thread section
- 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 model relates to a lifting device convenient to adjust by hand. The lifting device convenient to adjust by hand comprises an upper square sleeve, a lower square vertical column and a thread rod, wherein the inner cavity of the upper sleeve is connected with the outer surface of the lower vertical column in a sleeved mode, a guide sleeve is welded to the interior of the cavity of the lower vertical column, and an inner ring of the guide sleeve is provided with an internal thread section; the thread rod is provided with an external thread section which is in thread connection with the internal thread section, the upper end of the external thread section is provided with a check ring connected with the thread rod in a sleeved mode, a bearing is arranged on the unthreaded portion of the thread rod, one end of the bearing is fixedly located through the check ring, and the other end of the bearing is fixed through the upper surface of the cavity of the upper sleeve; a compression spring is arranged on the lower bottom surface of the guide sleeve, and the top end of the compression spring makes contact with a pin hole in the lower surface of the thread rod. The lifting device convenient to adjust by hand is reasonable in design, achieves continuous adjustment of the height, and is capable of reducing steering force needed by manual adjustment, and convenient to operate; meanwhile, in an ascending process, locking force of threads is reduced, and the threads are prevented from being damaged.
Description
Technical field
The utility model relates to a kind of jacking system, relates in particular to a kind of jacking system of being convenient to manual regulation.
Background technology
Mostly the Simple lifter being arranged in prior art in ground or support platform is to be made up of upper bush, lower pillar stand, the inner chamber of described upper bush is socketed on the outside face of lower pillar stand, have a row through hole in the side of upper bush, also have a row through hole in the corresponding position of lower pillar stand, plug bearing pin in through hole, in the time that needs regulate height, first bearing pin is taken out, then upper bush is moved to corresponding At The Height, then plug bearing pin.Although this control method is simple in structure, can not realize continuous adjusting, cannot meet operating needs.
Utility model content
The utility model, in order to overcome deficiency of the prior art, provides a kind of jacking system of being convenient to manual regulation.
The utility model is to be achieved through the following technical solutions:
Be convenient to a jacking system for manual regulation, comprise square upper bush, square lower pillar stand, screw rod, the inner chamber of described upper bush is socketed in the outside face of lower pillar stand, is welded with guide pin bushing cylinder in the cavity of described lower pillar stand, and the inner ring of described guide pin bushing cylinder is provided with internal thread segment; One section of described screw rod is provided with external thread section, described external thread section and described internal thread segment screw togather, the upper end of described external thread section be provided with one with the back-up ring of screw rod socket, at the polished rod place of screw rod, interference fit is provided with bearing, one end of described bearing is by back-up ring maintenance, and the other end is fixed by the inner chamber upper surface of upper bush; Upper end at screw rod has pin-and-hole, inserts a slewing circle pin in described pin-and-hole; In the time that upper bush rises, at the bottom surface of described guide pin bushing cylinder, Compress Spring is installed, the top of described Compress Spring contacts with the lower surface pin-and-hole of screw rod.
As optimal technical scheme of the present utility model, described bearing is single direction thrust ball bearing.
As optimal technical scheme of the present utility model, described Compress Spring is round section cylindroid helical-coil compression spring.
As optimal technical scheme of the present utility model, a side of described upper bush is welded with two mounting ear seats, on each mounting ear seat, all has bolt hole.
The utility model is in the time of work, first lower pillar stand is arranged in ground or support platform, the inner chamber of upper bush is socketed on lower pillar stand, in upper bush uphill process time, first the slewing circle pin interting on screw rod by manual rotation, the rotation of drive screw rod, owing to being provided with the external thread section matching with the internal thread segment of guide pin bushing cylinder on screw rod, thereby make screw rod increase, now on screw rod, produce an axial force upwards, this masterpiece (can bear unidirectional axial load for single direction thrust ball bearing, and can make unidirectional axial location), and impel upper bush to rise along rectilinear direction.The object that single direction thrust ball bearing is set is herein that it only bears axial force upwards, this masterpiece is for the blowout patche (blowout patche matches with the polished rod of screw rod) of thrust baring, the seat ring of thrust ball bearing is connected with the upper surface of upper bush inner chamber, in bolt rotary process, for thrust ball bearing is not set, can greatly reduce the friction force between screw rod and the upper surface of upper bush inner chamber, reduce the needed turning effort of manual regulation.Simultaneously in the time that upper bush rises to certain position and does not need to rise again, the slewing circle pin that stops the rotation, now upper bush will be parked in corresponding position.Owing to being connected with Compress Spring between the lower surface at screw rod and the bottom surface of guide pin bushing cylinder, on the one hand in upper bush uphill process time, give one of screw rod application force upwards, be convenient to manual regulation; Compress Spring is now owing to there being an application force upwards to act on screw rod on the other hand; offset the gravity of a part of upper bush, screw rod, bearing and rotational pin self; reduce to a great extent the power that thread bears, protected thread, prevented the damage of thread.Otherwise, in the time that upper bush need to down regulate, first the Compress Spring in guide pin bushing cylinder is taken out, and then derotation rotation straight pin, now, upper bush can decline along rectilinear direction.
Compared with prior art, the beneficial effects of the utility model are:
1, the utility model is simple in structure, reasonable in design, can realize the continuous lifting of upper bush by slewing circle pin, easy to operate;
2, by single direction thrust ball bearing is set on screw rod, can effectively reduce the friction force between screw rod and the upper surface of upper bush inner chamber, reduce the needed steering effort of manual regulation;
3, by guide pin bushing cylinder, Compress Spring being installed, after upper bush uphill process completes, can effectively reduce the coupling mechanism force of threaded section place thread, prevent that thread from damaging.
Brief description of the drawings
Fig. 1 is front view of the present utility model;
Fig. 2 is the A-A cutaway view in Fig. 1;
Fig. 3 is exploded view of the present utility model;
Fig. 4 is structural representation under a kind of use state of the utility model;
Fig. 5 is the birds-eye view of Fig. 4.
In figure: 1, upper bush; 2, lower pillar stand; 3, screw rod; 4, bearing; 5, Compress Spring; 6, slewing circle pin; 7, mounting ear seat; 8, spacing connecting panel; 9, bolt; 20, guide pin bushing cylinder; 30, back-up ring; 31, pin-and-hole; 70, bolt hole.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Refer to Fig. 1, Fig. 2 and Fig. 3, wherein, Fig. 1 is front view of the present utility model, and Fig. 2 is the A-A cutaway view in Fig. 1, and Fig. 3 is exploded view of the present utility model.
Described a kind of jacking system of being convenient to manual regulation, comprise square upper bush 1, square lower pillar stand 2, screw rod 3, the inner chamber of described upper bush 1 is socketed in the outside face of lower pillar stand 2, in whole lifting process, the internal chamber wall of upper bush 1 is close on the outside face of lower pillar stand 2 all the time, in the cavity of described lower pillar stand 2, be welded with guide pin bushing cylinder 20, the inner ring of described guide pin bushing cylinder 20 is provided with internal thread segment; 3 one sections of described screw rods are provided with external thread section, described external thread section and described internal thread segment screw togather, be provided with a back-up ring 30 being socketed with screw rod 3 at the upper end of described external thread section, at the polished rod place of screw rod 3, interference fit is provided with bearing 4, one end of described bearing 4 is by back-up ring 30 maintenances, and the other end is fixed by the inner chamber upper surface of upper bush 1; Have pin-and-hole 31 in the upper end of screw rod 3, the interior insertion one slewing circle pin 6 of described pin-and-hole 31; In the time that upper bush rises, at the bottom surface of described guide pin bushing cylinder 20, Compress Spring 5 is installed, the top of described Compress Spring 5 contacts with the lower surface pin-and-hole of screw rod 3.
Described bearing 4 is single direction thrust ball bearing, and described Compress Spring 5 is round section cylindroid helical-coil compression spring.
See also Fig. 4 and Fig. 5, wherein, Fig. 4 is structural representation under a kind of use state of the utility model, the birds-eye view that Fig. 5 is Fig. 4.
One side of described upper bush 1 is welded with two mounting ear seats 7, on each mounting ear seat 7, all has bolt hole 70.In the time that jacking system is used for regulating the height of spacing connecting panel 8, first two jacking systems are installed in ground or support platform, between the mounting ear seat 7 of jacking system, by bolt 9, spacing connecting panel 8 is installed, on described spacing connecting panel 8, has spacing hole.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. be convenient to the jacking system of manual regulation for one kind, comprise square upper bush (1), square lower pillar stand (2), screw rod (3), the inner chamber of described upper bush (1) is socketed in the outside face of lower pillar stand (2), it is characterized in that, in the cavity of described lower pillar stand (2), be welded with guide pin bushing cylinder (20), the inner ring of described guide pin bushing cylinder (20) is provided with internal thread segment; (3) one sections of described screw rods are provided with external thread section, described external thread section and described internal thread segment screw togather, the upper end of described external thread section be provided with one with the back-up ring (30) of screw rod (3) socket, at the polished rod place of screw rod (3), interference fit is provided with bearing (4), one end of described bearing (4) is by back-up ring (30) maintenance, and the other end is fixed by the inner chamber upper surface of upper bush (1); Have pin-and-hole (31) in the upper end of screw rod (3), in described pin-and-hole (31), insert a slewing circle pin (6); In the time that upper bush rises, at the bottom surface of described guide pin bushing cylinder (20), Compress Spring (5) is installed, the top of described Compress Spring (5) contacts with the lower surface of screw rod (3).
2. a kind of jacking system of being convenient to manual regulation according to claim 1, is characterized in that, described bearing (4) is single direction thrust ball bearing.
3. a kind of jacking system of being convenient to manual regulation according to claim 1, is characterized in that, described Compress Spring (5) is round section cylindroid helical-coil compression spring.
4. according to a kind of jacking system of being convenient to manual regulation described in claim 2 or 3, it is characterized in that, a side of described upper bush (1) is welded with two mounting ear seats (7), all has bolt hole (70) on each mounting ear seat (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320753835.5U CN203667898U (en) | 2013-11-26 | 2013-11-26 | Lifting device convenient to adjust by hand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320753835.5U CN203667898U (en) | 2013-11-26 | 2013-11-26 | Lifting device convenient to adjust by hand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203667898U true CN203667898U (en) | 2014-06-25 |
Family
ID=50964217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320753835.5U Expired - Fee Related CN203667898U (en) | 2013-11-26 | 2013-11-26 | Lifting device convenient to adjust by hand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203667898U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106363640A (en) * | 2016-10-27 | 2017-02-01 | 山东立辉重工有限公司 | Mobile laser cladding and precision machining integrated robot for ship |
| CN109097963A (en) * | 2018-10-24 | 2018-12-28 | 嘉兴市名汇服饰有限公司 | Support device is used in a kind of processing of clothes |
-
2013
- 2013-11-26 CN CN201320753835.5U patent/CN203667898U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106363640A (en) * | 2016-10-27 | 2017-02-01 | 山东立辉重工有限公司 | Mobile laser cladding and precision machining integrated robot for ship |
| CN106363640B (en) * | 2016-10-27 | 2019-04-30 | 山东立辉重工有限公司 | Naval vessel mobile laser cladding and Precision Machining integrated robot |
| CN109097963A (en) * | 2018-10-24 | 2018-12-28 | 嘉兴市名汇服饰有限公司 | Support device is used in a kind of processing of clothes |
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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 |
Granted publication date: 20140625 Termination date: 20141126 |
|
| EXPY | Termination of patent right or utility model |