CN201198445Y - Jack screw casing - Google Patents
Jack screw casing Download PDFInfo
- Publication number
- CN201198445Y CN201198445Y CNU2008200856924U CN200820085692U CN201198445Y CN 201198445 Y CN201198445 Y CN 201198445Y CN U2008200856924 U CNU2008200856924 U CN U2008200856924U CN 200820085692 U CN200820085692 U CN 200820085692U CN 201198445 Y CN201198445 Y CN 201198445Y
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- CN
- China
- Prior art keywords
- cylinder
- cylindrical shell
- neck
- lifting screw
- thread
- 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 screw jack shell. The screw jack shell is composed of a stretched cylinder, an upper opening arranged on the neck of the cylinder, a cross bore arranged on the side of the cylinder, a handle arranged on the right side of the cross bore and a bottom opening arranged on the bottom of the cylinder, which are suitably assembled together. The neck and the lower bottom opening of the cylinder are provided with internal threads; the upper opening is provided with an external thread matching the internal thread of the neck of the cylinder; and the bottom opening is provided with an external thread matching the internal thread of the lower bottom opening of the cylinder. In the assembled state, the upper opening and the bottom opening are firmly connected with the cylinder by adopting thread connection and welding, the handle and the cross bore are firmly connected with the cylinder only by adopting welding, and the wall thickness of the cylinder is between 1.5mm and 3mm. Since the cylinder is formed by stretching, environment is not polluted, and moreover, the screw jack shell has the advantages of high production efficiency, low production cost, little material consumption, high tensile strength, long service life, and the like.
Description
Technical field
The utility model relates to a kind of lifting gear, relates in particular to a kind of improvement of lifting screw block construction.
Background technology
The lifting screw housing of prior art is by the moulding of ductile castiron casting unit-cast unit, and production technology is very complicated.Seriously polluted in the production process, quantities is big, and the turn round time is long, and wall unevenness is even, the reject rate height, and productivity effect is low, moreover defectives such as foundry goods shrinkage porosite degree height, rough surface, pore are many, crackle and distortion, so yield rate is low, high material consumption.In use also there is the shell fracture to take place often, hides a large amount of potential safety hazards, also greatly reduce the service life of jack and the safety factor of lifting simultaneously.
Summary of the invention
The utility model mainly is to solve the existing in prior technology deficiency, thereby develops a kind of production efficiency height, and productive costs is low, the lifting screw housing that material consumption economizes.
Above-mentioned technical matters of the present utility model is mainly solved by following technical proposals: a kind of lifting screw housing, it is characterized in that: the cylindrical shell that forms by stretching, be installed in the suitable for reading of cylindrical shell neck, be installed in the cross-drilled hole of cylindrical shell side, be installed in the handle of cross-drilled hole right flank, the end mouth that is installed in the cylindrical shell bottom matches and assembles.
The technical solution of the utility model can also further limit perfect,
As preferably, the neck of described cylindrical shell and the mouth of going to the bottom are provided with negative thread; The described outside thread that matches with cylindrical shell neck negative thread that is provided with suitable for reading, mouth of the described end are provided with and the cylindrical shell outside thread that mouthful negative thread matches of going to the bottom.
As preferably, described externally threaded top suitable for reading is provided with seam, and the bottom of interface external thread, the described end is provided with seam.With improve suitable for reading and end mouth and cylindrical shell between the bonded assembly sealing property.
As preferably, under installing condition, adopt to be threaded between suitable for reading and end mouth and the cylindrical shell to add captiveing joint of welding, adopt captiveing joint of simple welding between handle and cross-drilled hole and the cylindrical shell.
As preferably, the wall thickness of described cylindrical shell is 1.5mm-3mm.
Therefore, the beneficial effects of the utility model are because cylindrical shell is a drawing and forming, environment is not polluted, and have the production efficiency height, and productive costs is low, and material consumption economizes, tensile strength height, characteristics such as long service life.
Description of drawings
Accompanying drawing 1 is a kind of structural front view of the present utility model;
Accompanying drawing 2 is lateral plans of Fig. 1;
Accompanying drawing 3 is birds-eye vieies of Fig. 1;
Accompanying drawing 4 is split figure of Fig. 1.
The specific embodiment
Below by embodiment also in conjunction with the accompanying drawings, the technical solution of the utility model is further described in detail.
Embodiment: suitable for reading 1 as Fig. 1, Fig. 2, lifting screw housing shown in Figure 3 by cylindrical shell 2, cross-drilled hole 3, handle 5, end mouth 4 assembles.Cylindrical shell 2 adopts the moulding of Q235A drawing pipe, wall thickness different and difference to some extent according to the specification of jack, and general thickness is 1.5mm-3mm.Cylindrical shell 2 has neck 22, horizontal mouthful 23 3 openings of go to the bottom mouth 24 and close bottom, and the neck 22 and the end mouth 24 of cylindrical shell 2 are processed with negative thread; Suitable for reading 1 is processed with the outside thread 12 with the screw-internal thread fit of neck, and threaded top is provided with seam 11; End mouth 4 is provided with and the cylindrical shell outside thread 41 that mouthful negative thread matches of going to the bottom, and the bottom of thread is provided with seam 42.During installation, screw in the neck 22 of cylindrical shell 2 and the mouth 24 of going to the bottom with suitable for reading 1 respectively with end mouth 4, welding is fixed then, cross-drilled hole 3 is aimed at horizontal mouth 23 welding again and is fixed, and handle 5 is aimed at the right flank welding of cross-drilled hole and fixed.The lifting screw housing is installation.
The stack-mounted lifting screw housing of employing drawing and forming increases tensile strength more than 20% than the housing of ductile castiron unit-cast unit moulding, under equal load-up condition, improves more than 30% than the traditional product safety factor.
Claims (6)
1. lifting screw housing, it is characterized in that: by the cylindrical shell (2) that stretching forms, be installed in (1) suitable for reading of cylindrical shell neck, be installed in the cross-drilled hole (3) of cylindrical shell side, be installed in the handle (5) of cross-drilled hole right flank, the end mouth (4) that is installed in the cylindrical shell bottom matches and assembles.
2. lifting screw housing according to claim 1 is characterized in that: the neck (22) of described cylindrical shell (2) and go to the bottom mouthful (24) are provided with negative thread; Described (1) suitable for reading is provided with the outside thread (12) that matches with cylindrical shell neck (22) negative thread, and mouth of the described end (4) is provided with and the cylindrical shell outside thread (41) that mouthful (24) negative thread matches of going to the bottom.
3. lifting screw housing according to claim 2 is characterized in that: described top of going up interface external thread (12) is provided with seam (11), and the bottom of interface external thread of the described end (41) is provided with seam (42).
4. according to claim 1 or 2 or 3 described lifting screw housings, it is characterized in that: under installing condition, adopt to be threaded between (1) suitable for reading He Dikou (4) and the cylindrical shell (2) to add captiveing joint of welding, adopt captiveing joint of welding merely between handle (5) and cross-drilled hole (3) and the cylindrical shell (2).
5. according to claim 1 or 2 or 3 described lifting screw housings, it is characterized in that: the wall thickness of described cylindrical shell (2) is 1.5mm-3mm.
6. lifting screw housing according to claim 4 is characterized in that: the wall thickness of described cylindrical shell is 1.5mm-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200856924U CN201198445Y (en) | 2008-04-09 | 2008-04-09 | Jack screw casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200856924U CN201198445Y (en) | 2008-04-09 | 2008-04-09 | Jack screw casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201198445Y true CN201198445Y (en) | 2009-02-25 |
Family
ID=40449603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200856924U Expired - Fee Related CN201198445Y (en) | 2008-04-09 | 2008-04-09 | Jack screw casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201198445Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110436371A (en) * | 2019-07-04 | 2019-11-12 | 杭州三图科技有限公司 | One kind being used for vehicle maintenance mechanical jack |
-
2008
- 2008-04-09 CN CNU2008200856924U patent/CN201198445Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110436371A (en) * | 2019-07-04 | 2019-11-12 | 杭州三图科技有限公司 | One kind being used for vehicle maintenance mechanical jack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090225 Termination date: 20140409 |