CN214734073U - Mechanical manual jack - Google Patents
Mechanical manual jack Download PDFInfo
- Publication number
- CN214734073U CN214734073U CN202120797240.4U CN202120797240U CN214734073U CN 214734073 U CN214734073 U CN 214734073U CN 202120797240 U CN202120797240 U CN 202120797240U CN 214734073 U CN214734073 U CN 214734073U
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- China
- Prior art keywords
- jack
- hand wheel
- screw
- nut
- mechanical hand
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- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 235000008331 Pinus X rigitaeda Nutrition 0.000 abstract description 2
- 235000011613 Pinus brutia Nutrition 0.000 abstract description 2
- 241000018646 Pinus brutia Species 0.000 abstract description 2
- 230000005484 gravity Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model discloses a mechanical hand jack, which comprises a base component, wherein the upper end of the base component is provided with a hand wheel component which rotates by taking the base component as the center; the screw penetrates through the hand wheel assembly and is inserted into the base assembly, the screw is in threaded connection with the hand wheel assembly, and an anti-rotation structure is arranged between the screw and the base assembly. The utility model discloses simple structure is reliable, has jack-up height, and the focus is steady, does not move back the pine, characteristics such as easy operation accord with train ferry transportation ligature requirement.
Description
Technical Field
The utility model relates to a freight fixing tool field specifically is a manual jack of mechanical type.
Background
The jack is widely applied to equipment maintenance and installation and other places needing lifting and supporting, and is divided into a mechanical type and a hydraulic type, and the lifting height of the jack is generally less than 1 meter.
During transportation of train ferries, the train carriages need to be fastened and fixed to ensure the transportation safety, jacks are usually arranged on two sides of the train carriages to serve as supports to prevent the train carriages from turning on one side, and then the carriages are fixed and fixed firmly through other binding equipment. Because the carriage is high apart from the supporting surface, the jack is high in lifting height, the center of gravity is stable, and the jack cannot be loosened during use, so that the conventional universal jack cannot meet the requirement, and a new jack is required to meet the requirement of cargo transportation.
SUMMERY OF THE UTILITY MODEL
The utility model provides a manual jack of mechanical type, simple structure is reliable, has jack-up height, and the focus is steady, does not move back the pine, characteristics such as easy operation accord with train ferry transportation ligature requirement.
In order to achieve the above object, the utility model provides a following technical scheme: a mechanical hand jack comprising:
the upper end of the base component is provided with a hand wheel component which rotates by taking the base component as a center;
the screw penetrates through the hand wheel assembly and is inserted into the base assembly, the screw is in threaded connection with the hand wheel assembly, and an anti-rotation structure is arranged between the screw and the base assembly.
Preferably, the base component comprises a vertically arranged circular tube and a bottom plate arranged at the lower end of the circular tube, and the hand wheel component is arranged at the upper end of the circular tube.
Preferably, the handwheel component comprises a handwheel part and a nut arranged at the center of the handwheel part, the nut is at least partially positioned in the circular tube, and the screw is meshed with the internal thread hole of the nut.
Furthermore, the anti-rotation structure comprises an anti-rotation groove arranged on the outer side of the screw rod along the axial direction and an anti-rotation screw which penetrates through the circular tube and is embedded with the anti-rotation groove.
Furthermore, an oil filling hole communicated with the internal thread hole is formed in the side wall of the nut.
Preferably, at least one set screw which passes through the nut and extends to the screw rod is arranged on the side wall of the upper end of the circular tube.
Additionally, at least one handle is arranged on the outer side wall of the circular tube.
Preferably, a plurality of reinforcing lining plates connected with the bottom plate are arranged on the outer side wall of the lower end of the circular tube around the circumference.
Preferably, a gasket is arranged between the hand wheel assembly and the base assembly.
Compared with the prior art, the beneficial effects of the utility model are that:
the lifting jack has the advantages that the structure is simple and reliable, the manufacturing is convenient, the screw rod is driven to lift through the hand wheel assembly, the operation is simple and labor-saving, and the screw rod is connected with the hand wheel assembly at the upper end of the base assembly, so that the lifting jack has the characteristics of high lifting height, stable integral gravity center, no loosening, easiness in operation and the like, and meets the binding requirement of train ferry transportation; still be provided with oiling structure, make the lift of jack more nimble smooth and easy.
Drawings
FIG. 1 is a front view structural diagram of the present invention;
FIG. 2 is a front view of the structure of the half-section of the present invention;
FIG. 3 is a front view of the exploded structure of the present invention;
fig. 4 is a schematic view of the structure of the utility model in use.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
As shown in fig. 1-4, the utility model provides a mechanical type manual jack, include:
the device comprises a base component 1, wherein a hand wheel component 7 which rotates by taking the base component 1 as a center is arranged at the upper end of the base component 1;
the screw 8 penetrates through the hand wheel assembly 7 and is inserted into the base assembly 1, the screw 8 is in threaded connection with the hand wheel assembly 7, an anti-rotation structure is arranged between the screw 8 and the base assembly 1, the screw 8 cannot rotate due to the existence of the anti-rotation structure, and can only lift up and down under the rotation of the hand wheel assembly 7, and the hand wheel assembly 7 is located at the upper end of the base assembly 1, so that the combination position of the screw 8 and the hand wheel assembly 7 is higher, and the jack has a higher lifting starting point.
When the lifting jack is used, the starting height of the lifting jack is adjusted according to the height of a train carriage, the lifting jack can be smoothly placed below the carriage, the lifting jack is placed below the strong cross beams on two sides of the train carriage according to requirements, the lifting jack is kept flat, the hand wheel assembly 7 is rotated, the lifting jack can be tightly pressed on the strong cross beams of the train, and installation is completed.
Example 1:
as shown in fig. 1-3, the base assembly 1 includes a vertically arranged circular tube 12 and a bottom plate 14 arranged at the lower end of the circular tube 12, the hand wheel assembly 7 is installed at the upper end of the circular tube 12, the area of the bottom plate 14 is relatively large, and the circular tube 12 is relatively light, so that the center of gravity of the whole base assembly 1 is relatively low and the base assembly is not easy to topple.
Meanwhile, in order to make the moving, taking and placing of the whole jack more convenient, at least one handle 11 is arranged on the outer side wall of the circular tube 12, and two handles 11 can be symmetrically arranged on the outer side wall of the circular tube 12.
In order to improve the overall strength of the base assembly 1, a plurality of reinforcing lining plates 13 connected with the bottom plate 14 are arranged on the outer side wall of the lower end of the circular tube 12 around the circumference, and 4 reinforcing lining plates 13 can be uniformly arranged along the circular tube 12.
Example 2:
as shown in fig. 3, the handwheel assembly 7 includes a handwheel portion 71 and a nut 72 disposed at the center of the handwheel portion 71, the nut 72 is at least partially disposed in the circular tube 12, the screw 8 is engaged with an internal thread hole of the nut 72, the circular tube 12 can guide the rotation of the nut 72, so that the nut 72 can rotate freely, the handwheel portion 71 can drive the nut 72 to rotate more easily, and an oil filling hole 5 communicated with the internal thread hole is disposed on a side wall of the nut 72, so that lubricating oil can be filled into the thread engagement portion.
Meanwhile, the side wall of the upper end of the circular tube 12 is provided with at least one set screw 2 which penetrates through the nut 72 and extends to the screw 8, so that the screw 8 can be locked when the jack is in a jacking state, and the screw 8 is prevented from loosening.
The anti-rotation structure comprises an anti-rotation groove 81 arranged on the outer side of the screw rod 8 along the axial direction and an anti-rotation screw 4 which penetrates through the circular tube 12 and is embedded with the anti-rotation groove 81, the anti-rotation screw 4 is provided with a spring gasket 3, and the anti-rotation screw 4 is prevented from loosening.
In addition, a gasket 6 is arranged between the hand wheel component 7 and the base component 1, so that the dustproof and wear-resistant effects are achieved.
Although the invention has been described above with reference to embodiments, the combination is not exhaustively described in this specification. The protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of or change the protection scope of the present invention within the technical scope of the present invention. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (9)
1. A mechanical hand jack, comprising:
the device comprises a base component (1), wherein a hand wheel component (7) which rotates by taking the base component (1) as a center is arranged at the upper end of the base component (1);
the screw rod (8) penetrates through the hand wheel assembly (7) and is inserted into the base assembly (1), the screw rod (8) is in threaded connection with the hand wheel assembly (7), and an anti-rotation structure is arranged between the screw rod (8) and the base assembly (1).
2. The mechanical hand jack of claim 1, wherein: the base component (1) comprises a vertically arranged round pipe (12) and a bottom plate (14) arranged at the lower end of the round pipe (12), and the hand wheel component (7) is arranged at the upper end of the round pipe (12).
3. The mechanical hand jack of claim 2, wherein: hand wheel subassembly (7) include hand wheel portion (71) and set up nut (72) at hand wheel portion (71) center, nut (72) at least part be located pipe (12), screw rod (8) mesh with the internal screw hole of nut (72).
4. The mechanical hand jack of claim 2, wherein: the anti-rotation structure comprises an anti-rotation groove (81) which is axially arranged on the outer side of the screw rod (8) and an anti-rotation screw (4) which penetrates through the circular tube (12) and is embedded with the anti-rotation groove (81).
5. The mechanical hand jack of claim 3, wherein: an oil filling hole (5) communicated with the internal thread hole is formed in the side wall of the nut (72).
6. The mechanical hand jack of claim 3, wherein: the side wall of the upper end of the circular tube (12) is provided with at least one set screw (2) which penetrates through the nut (72) and extends to the screw rod (8).
7. The mechanical hand jack of claim 2, wherein: the outer side wall of the round pipe (12) is provided with at least one handle (11).
8. The mechanical hand jack of claim 2, wherein: the outer side wall of the lower end of the circular tube (12) is provided with a plurality of reinforcing lining plates (13) connected with the bottom plate (14) around the circumference.
9. The mechanical hand jack of claim 1, wherein: and a gasket (6) is arranged between the hand wheel component (7) and the base component (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120797240.4U CN214734073U (en) | 2021-04-19 | 2021-04-19 | Mechanical manual jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120797240.4U CN214734073U (en) | 2021-04-19 | 2021-04-19 | Mechanical manual jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214734073U true CN214734073U (en) | 2021-11-16 |
Family
ID=78604044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120797240.4U Active CN214734073U (en) | 2021-04-19 | 2021-04-19 | Mechanical manual jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214734073U (en) |
-
2021
- 2021-04-19 CN CN202120797240.4U patent/CN214734073U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 92 Xingpu Road, Lujia Town, Kunshan City, Suzhou City, Jiangsu Province, 215331 Patentee after: China Shipbuilding Jihai (Kunshan) High tech Co.,Ltd. Country or region after: China Address before: 215331 Lujia Village, Lujia Town, Suzhou City, Jiangsu Province Patentee before: Kunshan Ji Hai Industrial Co.,Ltd. Country or region before: China |