CN203807045U - Linkage finely-adjustable screw jack - Google Patents
Linkage finely-adjustable screw jack Download PDFInfo
- Publication number
- CN203807045U CN203807045U CN201420070442.9U CN201420070442U CN203807045U CN 203807045 U CN203807045 U CN 203807045U CN 201420070442 U CN201420070442 U CN 201420070442U CN 203807045 U CN203807045 U CN 203807045U
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- CN
- China
- Prior art keywords
- screw
- lifting screw
- landed
- fine
- screw jack
- 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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- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
The utility model discloses a linkage finely-adjustable screw jack, which is simple in design and easy to operate. When two support leg components cannot be landed at the same time on an uneven ground surface, one landed support leg is stopped, a handle on an another non-landed screw jack fine adjustment screw rod component is operated to allow the other support leg to be landed, a nut component is locked rotationally, and a screw pair is locked. When the two support legs are landed, a crank is operated continually to allow inner pipes of driving and driven moveable screw jacks to contract inwards or extend outwards, thereby realizing stable support, eliminating potential safety hazard, effectively protecting the screw jack and prolonging the service life of the screw jack.
Description
Technical field
The utility model relates to a kind of coordinated type lifting screw, especially a kind of interlock fine adjustment type lifting screw.
Background technology
Conventional use is coordinated type lifting screw at present, major and minor lifting screw realizes synchronous ascending, descending by connecting rod, if run into the situations such as ground unfairness or geology are soft, there will be a lifting screw first to land, the problem that another does not also land, continue operation and can cause trailer unstable, cause potential safety hazard, therefore the life-span of jack also may shorten.
Summary of the invention
The purpose of this utility model is to be, a kind of interlock fine adjustment type lifting screw of simple in structure, easy to operate, dependable performance is provided.
In order to realize above-mentioned object, technical solutions of the utility model are as follows:
A kind of interlock fine adjustment type lifting screw, it is characterized in that: initiatively lifting screw is fixedly connected with respectively fine-tuning nut with driven lifting screw bottom, fine-tuning nut forms screw pair with fine setting screw part, and fine setting screw part is connected with concave spherical surface feet parts by protruding sphere.
Above-mentioned a kind of interlock fine adjustment type lifting screw, is characterized in that: initiatively between lifting screw and driven lifting screw, by connecting rod, be rotationally connected, realize synchronous ascending, descending.
Above-mentioned a kind of interlock fine adjustment type lifting screw, is characterized in that: fine setting screw part is combined on the inner screw pair that forms of fine-tuning nut.
Above-mentioned a kind of interlock fine adjustment type lifting screw, is characterized in that: fine setting screw part projection sphere is connected and supports the use with concave spherical surface feet parts.
The beneficial effects of the utility model are: the utility model simplicity of design, easily operation, running into ground unfairness, when two feet parts can not land simultaneously, only need to be to land feet shut-down operation, handle the handle that another does not land on lifting screw fine setting screw part, it is stretched out and with ground really, at this moment rotational lock nut part, set and locking screw is secondary, after two feets all land, at this moment continuing operating rocker handle makes main, the inner tube of driven lifting screw indentation simultaneously or stretch out, play stable support, eliminated the effect of potential safety hazard, simultaneously, effectively protect lifting screw, extend its service life.
Accompanying drawing explanation
Fig. 1 is main sectional view of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model specific embodiment is further detailed.
As shown in Figure 1, a kind of interlock fine adjustment type lifting screw relates separately to: active lifting screw 1, driven lifting screw 2, connecting rod 3, crank 4, fine-tuning nut 5, fine setting screw part 6, jam nut parts 7, feet parts 8.Initiatively between lifting screw 1 and driven lifting screw 2, by connecting rod 3, be rotationally connected, realize synchronous ascending, descending; Initiatively lifting screw 1 is fixedly connected with respectively fine-tuning nut 5 with driven lifting screw 2 bottoms, and it forms screw pair with fine setting screw part 6, and fine setting screw part 6 is connected with feet parts 8 with concave spherical surface by protruding sphere, and rotatable.
Interlock fine adjustment type lifting screw active lifting screw 1 of the present utility model and driven lifting screw 2 are connected to a fixed with vehicle body.By driving crank 4, make the inner tube indentation simultaneously of driving and driven lifting screw or stretch out.When operating personal operates, if ground unfairness, two feet parts 8 can not land simultaneously.At this time only need to work as the shut-down operation while landing of a feet, the handle that manipulation another does not land on lifting screw screw part, it is stretched out and with ground really.Rotational lock nut part 7, set and locking screw is secondary.At this time can continue operating rocker handle 4, make the inner tube indentation simultaneously of principal and subordinate, moving lifting screw or stretch out, play the effect of stable support.
The above is preferred embodiment of the present utility model; the technical personnel of the industry should be understood; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates design of the present utility model; under the prerequisite that does not depart from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall in scope of patent protection of the present utility model.
Claims (4)
1. an interlock fine adjustment type lifting screw, it is characterized in that: initiatively lifting screw is fixedly connected with respectively fine-tuning nut with driven lifting screw bottom, fine-tuning nut forms screw pair with fine setting screw part, and fine setting screw part is connected with concave spherical surface feet parts by protruding sphere.
2. according to a kind of interlock fine adjustment type lifting screw described in claim 1, it is characterized in that: initiatively between lifting screw and driven lifting screw, by connecting rod, be rotationally connected, realize synchronous ascending, descending.
3. a kind of interlock fine adjustment type lifting screw according to claim 1, is characterized in that: fine setting screw part is combined on the inner screw pair that forms of fine-tuning nut.
4. a kind of interlock fine adjustment type lifting screw according to claim 1, is characterized in that: fine setting screw part projection sphere is connected and supports the use with concave spherical surface feet parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420070442.9U CN203807045U (en) | 2014-02-19 | 2014-02-19 | Linkage finely-adjustable screw jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420070442.9U CN203807045U (en) | 2014-02-19 | 2014-02-19 | Linkage finely-adjustable screw jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203807045U true CN203807045U (en) | 2014-09-03 |
Family
ID=51445830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420070442.9U Expired - Fee Related CN203807045U (en) | 2014-02-19 | 2014-02-19 | Linkage finely-adjustable screw jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203807045U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111098106A (en) * | 2019-12-23 | 2020-05-05 | 上海宝山大陆汽车配件有限公司 | Automatic lifting device of scissor jack |
-
2014
- 2014-02-19 CN CN201420070442.9U patent/CN203807045U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111098106A (en) * | 2019-12-23 | 2020-05-05 | 上海宝山大陆汽车配件有限公司 | Automatic lifting device of scissor jack |
| CN111098106B (en) * | 2019-12-23 | 2021-10-01 | 上海宝山大陆汽车配件股份有限公司 | Automatic lifting device of scissor jack |
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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: 20140903 Termination date: 20190219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |