CN104973531A - Gear drive type ratchet wheel lifting mechanism - Google Patents
Gear drive type ratchet wheel lifting mechanism Download PDFInfo
- Publication number
- CN104973531A CN104973531A CN201510412736.4A CN201510412736A CN104973531A CN 104973531 A CN104973531 A CN 104973531A CN 201510412736 A CN201510412736 A CN 201510412736A CN 104973531 A CN104973531 A CN 104973531A
- Authority
- CN
- China
- Prior art keywords
- screw shaft
- ratchet
- sleeve
- ratchet wheel
- bayonet lock
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
- B66F3/14—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated actuated through pawl-and-ratchet mechanisms
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The invention discloses a gear drive type ratchet wheel lifting mechanism which comprises a ratchet wheel wrench component, a screw shaft, a sleeve and a brake. The ratchet wheel wrench component and the brake are arranged on the sleeve. The screw shaft is driven to do lifting motion and is arranged in the sleeve and matched with the sleeve. The brake brakes the ratchet wheel wrench component. Lifting adjustment is carried out on the screw shaft through the ratchet wheel wrench component. The top end of the screw shaft is used for bearing weights. The gear drive type ratchet wheel lifting mechanism is composed of the ratchet wheel wrench component, the screw shaft, the sleeve and the brake; the brake is used for braking a ratchet; it is guaranteed that the ratchet is kept static when a check block moves along the ratchet; the ratchet wheel wrench component is in a gear drive type, transmission tends to be non-polar and is smooth and high in reliability; when a ratchet wheel wrench is operated to swing, the ratchet wheel wrench is more stable and saves more labor. The lifting mechanism is high in reliability, and no slipping phenomenon happens. When the lifting mechanism is operated manually, more time and labor are saved.
Description
Technical field
The present invention relates to a kind of lifting mechanism, particularly relate to a kind of gear type ratchet elevator structure.
Background technology
Jack in the past or the lifting mechanism of other like product all adopt ratchet transmission.Ratchet is comparatively large due to adjacent two space of tooths, comparatively requires great effort during practical operation, and reliable transmission is simultaneously poor, fragile.
Therefore, need to provide a kind of new technical scheme to solve the problems referred to above.
Summary of the invention
The technical issues that need to address of the present invention are to provide a kind of gear type ratchet elevator structure.More time saving and energy saving when making manual operation lifting mechanism, improve lifting mechanism reliability.
For solving technical matters of the present invention, the technical solution used in the present invention is:
A kind of gear type ratchet elevator structure, it comprises free wrench assembly, screw shaft, sleeve and drg, described free wrench assembly and drg are installed on sleeve, drive screw shaft moves up and down, described screw shaft to be installed in sleeve and to coordinate with sleeve, described drg is braked free wrench assembly, carries out lift adjustment by free wrench assembly to screw shaft, and described screw shaft top is used for supporting heavy.
Further, described free wrench assembly comprises ratchet, block, shift fork and handle, and two blocks, under the elastic force effect of elastic force steel ring, compress the teeth groove of ratchet, reversing shift fork can dial from teeth groove by a certain block, and at this moment pivotal handle can realize the lifting action of screw shaft.
Further, described drg comprises bayonet lock, base, spring and swivel nut, described bayonet lock is fixed on base, described spring is placed on bayonet lock, described swivel nut is placed on bayonet lock end, brake in the teeth groove that bayonet lock embeds ratchet under spring force effect, inwardly or to the adjustable bayonet lock thrust of inner rotary swivel nut.
Beneficial effect of the present invention: the present invention is made up of free wrench assembly, screw shaft, sleeve and drg, drg is used for braking ratchet, when ensureing that block moves along tooth, ratchet keeps static, free wrench assembly is gear type, and transmission more trends towards non-polarized, and stable drive, reliability are high, it is more steadily laborsaving when operation free wrench swings, lifting mechanism reliability of the present invention is high, there will not be skidding, more time saving and energy saving during this lifting mechanism of manual operation.
Accompanying drawing explanation
Fig. 1 a is the section-drawing of ratchet elevator structure of the present invention.
Fig. 1 b is the appearance schematic diagram of ratchet elevator structure of the present invention.
Fig. 1 c is the birds-eye view of ratchet elevator structure of the present invention.
Fig. 2 a is the structural representation of free wrench assembly of the present invention.
Fig. 2 b is the birds-eye view of the free wrench assembly of Fig. 2 a.
Fig. 3 a is the structural representation of drg of the present invention.
Fig. 3 b is the appearance schematic diagram of Fig. 3 a drg.
Wherein, 1, screw shaft, 2, sleeve, 3, free wrench assembly, 31, ratchet, 32, block, 33, shift fork, 34, handle, 35, teeth groove, 36, elastic force steel ring, 4, drg, 41, bayonet lock, 42, base, 43, spring, 44, swivel nut.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described.Following examples, only for illustration of the present invention, are not used for limiting the scope of the invention.
Shown in Fig. 1 a, Fig. 1 b and Fig. 1 c, a kind of gear type ratchet elevator structure of the present invention, comprise free wrench assembly 3, screw shaft 1, sleeve 2 and drg 4, free wrench assembly 3 and drg 4 are installed on sleeve 2, drive screw shaft 1 to move up and down, screw shaft 1 to be installed in sleeve 2 and to coordinate with sleeve 2, and drg 4 pairs of free wrench assemblies 3 are braked, carry out lift adjustment by free wrench assembly 3 pairs of screw shafts 1, screw shaft 1 top is used for supporting heavy.
Shown in Fig. 2 a, Fig. 2 b, free wrench assembly 3 comprises ratchet 31, block 32, shift fork 33 and handle 34, two blocks 32 are under the elastic force effect of elastic force steel ring 36, compress the teeth groove 35 of ratchet 31, reversing shift fork 33 can by a certain block 32 groups from teeth groove 35, and at this moment pivotal handle 34 can realize the lifting action of screw shaft 1;
Shown in Fig. 3 a and Fig. 3 b, drg 4 comprises bayonet lock 41, base 42, spring 43 and swivel nut 44, bayonet lock 41 is fixed on base 42, spring 43 is placed on bayonet lock 41, swivel nut 44 is placed on bayonet lock 41 end, brake in the teeth groove 35 that bayonet lock 41 embeds ratchet 31 under the effect of spring 43 elastic force, inwardly or to inner rotary swivel nut 44 adjustable bayonet lock 41 thrust.
The present invention is made up of free wrench assembly 3, screw shaft 1, sleeve 2 and drg 4, drg 4 is for braking ratchet 31, when ensureing that block moves along tooth, ratchet 31 keeps static, free wrench assembly 3 is gear type, and transmission more trends towards non-polarized, and stable drive, reliability are high, it is more steadily laborsaving when operation free wrench swings, lifting mechanism reliability of the present invention is high, there will not be skidding, more time saving and energy saving during this lifting mechanism of manual operation.
Claims (3)
1. a gear type ratchet elevator structure, it is characterized in that: it comprises free wrench assembly, screw shaft, sleeve and drg, described free wrench assembly and drg are installed on sleeve, drive screw shaft moves up and down, described screw shaft to be installed in sleeve and to coordinate with sleeve, described drg is braked free wrench assembly, carries out lift adjustment by free wrench assembly to screw shaft, and described screw shaft top is used for supporting heavy.
2. a kind of gear type ratchet elevator structure according to claim 1, it is characterized in that: described free wrench assembly comprises ratchet, block, shift fork and handle, two blocks are under the elastic force effect of elastic force steel ring, compress the teeth groove of ratchet, reversing shift fork can dial from teeth groove by a certain block, and at this moment pivotal handle can realize the lifting action of screw shaft.
3. a kind of gear type ratchet elevator structure according to claim 1, it is characterized in that: described drg comprises bayonet lock, base, spring and swivel nut, described bayonet lock is fixed on base, described spring is placed on bayonet lock, described swivel nut is placed on bayonet lock end, brake in the teeth groove that bayonet lock embeds ratchet under spring force effect, inwardly or to the adjustable bayonet lock thrust of inner rotary swivel nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510412736.4A CN104973531A (en) | 2015-07-15 | 2015-07-15 | Gear drive type ratchet wheel lifting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510412736.4A CN104973531A (en) | 2015-07-15 | 2015-07-15 | Gear drive type ratchet wheel lifting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104973531A true CN104973531A (en) | 2015-10-14 |
Family
ID=54270578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510412736.4A Pending CN104973531A (en) | 2015-07-15 | 2015-07-15 | Gear drive type ratchet wheel lifting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104973531A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6347779B1 (en) * | 2000-04-25 | 2002-02-19 | Mark Korin | Rotatable ramp jack |
| CN2786083Y (en) * | 2005-01-07 | 2006-06-07 | 洋通工业股份有限公司 | Ratchet wheel set for switching from tyre-changing spanner to jack |
| CN201281116Y (en) * | 2008-06-13 | 2009-07-29 | 侯伟 | Manpower type rocker drive deivce for medium and small sized hoists |
| CN101941360A (en) * | 2009-07-03 | 2011-01-12 | 朴文焕 | Stopper device for caster |
| CN203845749U (en) * | 2014-05-21 | 2014-09-24 | 李红宾 | Screw jack |
| CN204778585U (en) * | 2015-07-15 | 2015-11-18 | 江西洪都航空工业集团有限责任公司 | Gear drive type ratchet elevating system |
-
2015
- 2015-07-15 CN CN201510412736.4A patent/CN104973531A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6347779B1 (en) * | 2000-04-25 | 2002-02-19 | Mark Korin | Rotatable ramp jack |
| CN2786083Y (en) * | 2005-01-07 | 2006-06-07 | 洋通工业股份有限公司 | Ratchet wheel set for switching from tyre-changing spanner to jack |
| CN201281116Y (en) * | 2008-06-13 | 2009-07-29 | 侯伟 | Manpower type rocker drive deivce for medium and small sized hoists |
| CN101941360A (en) * | 2009-07-03 | 2011-01-12 | 朴文焕 | Stopper device for caster |
| CN203845749U (en) * | 2014-05-21 | 2014-09-24 | 李红宾 | Screw jack |
| CN204778585U (en) * | 2015-07-15 | 2015-11-18 | 江西洪都航空工业集团有限责任公司 | Gear drive type ratchet elevating system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151014 |
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| RJ01 | Rejection of invention patent application after publication |