CN201313802Y - Limiting device of electric block - Google Patents
Limiting device of electric block Download PDFInfo
- Publication number
- CN201313802Y CN201313802Y CNU200820149293XU CN200820149293U CN201313802Y CN 201313802 Y CN201313802 Y CN 201313802Y CN U200820149293X U CNU200820149293X U CN U200820149293XU CN 200820149293 U CN200820149293 U CN 200820149293U CN 201313802 Y CN201313802 Y CN 201313802Y
- Authority
- CN
- China
- Prior art keywords
- limit switch
- clamping plate
- electric block
- utility
- model
- 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 the field of the hoisting machinery, in particular to a limiting device of an electric block, which comprises a clamping plate 1, a contract terminal 2 and limit switches 5 and 6, and is characterized in that the limit switches 5 and 6 together are fixed by the clamping plate 1, a clamping plate 4 and a bolt 7; and a top plate 3 is movably connected with the lower end of the clamping plates. The utility model has the advantages of high sensitivity, safety, reliability, low production cost and no easy damage.
Description
Technical field
The utility model relates to the lifting equipment field, especially relates to a kind of electric block inhibiting device.
Background technology
In order to prevent the rush to summit generation of accident of electric block; inhibiting device is the requisite safety guard of electric block; at present; the inhibiting device major part of existing electric block is a rod-pulling type on the market; its keystone configuration comprises the pull bar that the reel limit is provided with; the two ends of pull bar respectively are provided with a positive stop; positive stop and limit switch are used; during work; thereby the up-and-down movement of steel rope causes the rope guide sway on the reel; when rope guide is run into positive stop, touch inhibiting device, thereby reach spacing purpose.The inhibiting device of this structure, its pull bar and cable drum must be isometric, cucurbit is risen high highly more, and pull bar is just long more, and the volume of its cucurbit is just big more, so just increased manufacturing cost greatly, and pull bar is long more, and easy more quilt hits curved, unstability, cause the malfunctioning of inhibiting device, staff's life security just can not get ensureing.Another safety guard is that limit switch is arranged on the housing of hoist ceiling crane; from the limit switch weight that hangs down; retracing spring in this in device is in stressed mode of operation always; working long hours makes spring follow the string easily, can not upspring by actv., and the shortcoming of existence is that sensitivity is low; poor reliability; when ac contactor contact sticks together, cause the accident of not stopping easily, damage parts.
The utility model content
In order to overcome the deficiency that prior art exists, the purpose of this utility model provides a kind of highly sensitive, safety, reliable operation, productive costs is low and do not allow damageable a kind of electric block inhibiting device.
In order to achieve the above object, the technical solution of the utility model is achieved like this, a kind of electric block inhibiting device, comprise clamping plate 1, contact 2, limit switch (5,6) is characterized in that: with clamping plate (1,4) and bolt 7 inverted limit switch (5,6) is fixed together, described top board 3 is movably connected in the clamping plate lower end.
Described limit switch is provided with rubber pad 9 between (5,6).
The beneficial effects of the utility model are: highly sensitive, safe, reliable, productive costs is low and be not easy to damage.
Description of drawings
Fig. 1 is the utility model fabricate block cross sectional representation, also can be used as Figure of abstract.
Fig. 2 is the A-A cutaway view of Fig. 1
In above figure:
1 is clamping plate
2 is contact
3 is top board
4 is clamping plate
5 is limit switch
6 is limit switch
7 is bolt
8 is contact
9 is rubber pad
Below in conjunction with accompanying drawing the utility model is described further, as shown in Figure 1, the utility model bag Draw together clamping plate 1, contact 2, limit switch (5,6) uses clamping plate (1,4) and bolt 7 with inverted spacing Switch (5,6) is fixed together, and described top board 3 is movably connected in the clamping plate lower end. Its objective is: fall Putting mounting limit switch (5,6) is for the back-moving spring in the limit switch (5,6) is in for a long time Off position, spring is not easy fatigue, and prolong service life.
Described limit switch is provided with rubber blanket 9 between (5,6). Its objective is: use rubber blanket 9 The utility model can be fixed on the steel wire rope more securely, be not easy to produce sliding phenomenon.
Its connected mode is: two rubber blankets 9 is arranged between the inverted limit switch (5,6), With bolt 7 inverted limit switch (5,6) is fixed between the clamping plate (1,4), steel wire rope is from two Pass in the middle of the rubber blanket 9 and in the hole of top board 3, this moment, clamping screw 7 made rubber blanket 9 compressions, this limit The position device namely is securely fixed on the steel wire rope.
The specific embodiment:
Embodiment: steel rope is passed between two rubber pads 9 of this inhibiting device and the hole of top board 3, lock bolt 7 makes rubber pad 9 compressions, this inhibiting device promptly is securely fixed in the correct position on the steel rope, limit switch 5 is connected in series in the rising circuit of hoist ceiling crane, and limit switch 6 is connected in series in the way circuit of hoist ceiling crane.During with the electric block hoisting heavy, if lift by crane too highly, suspension hook will withstand top board 3 upward movements, and this moment, top board 3 withstood contact 2, and limit switch 5 work at this moment disconnect circuit, and hoist ceiling crane quits work.If limit switch 5 lost efficacy, top board 3 continues to move up and withstands contact 8, and limit switch 6 work disconnect general supply.
Claims (2)
1, a kind of electric block inhibiting device, comprise clamping plate (1), contact (2), limit switch (5,6), it is characterized in that: with clamping plate (1,4) and bolt (7) inverted limit switch (5,6) is fixed together, described top board (3) is movably connected in the clamping plate lower end.
2, a kind of electric block safety inhibiting device according to claim 1, it is characterized in that: described limit switch is provided with rubber pad (9) between (5,6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820149293XU CN201313802Y (en) | 2008-09-19 | 2008-09-19 | Limiting device of electric block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820149293XU CN201313802Y (en) | 2008-09-19 | 2008-09-19 | Limiting device of electric block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201313802Y true CN201313802Y (en) | 2009-09-23 |
Family
ID=41125593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820149293XU Expired - Fee Related CN201313802Y (en) | 2008-09-19 | 2008-09-19 | Limiting device of electric block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201313802Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102795550A (en) * | 2011-05-27 | 2012-11-28 | 上海东冠纸业有限公司 | Double insurance crane for producing tissue paper |
| CN109052204A (en) * | 2018-10-26 | 2018-12-21 | 海鹰企业集团有限责任公司 | A kind of raising position limit device for winch |
| CN113853350A (en) * | 2019-05-13 | 2021-12-28 | 科尼起重机全球公司 | Wire rope hoist stopper |
-
2008
- 2008-09-19 CN CNU200820149293XU patent/CN201313802Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102795550A (en) * | 2011-05-27 | 2012-11-28 | 上海东冠纸业有限公司 | Double insurance crane for producing tissue paper |
| CN109052204A (en) * | 2018-10-26 | 2018-12-21 | 海鹰企业集团有限责任公司 | A kind of raising position limit device for winch |
| CN109052204B (en) * | 2018-10-26 | 2023-07-28 | 海鹰企业集团有限责任公司 | Lifting upper limiting device for winch |
| CN113853350A (en) * | 2019-05-13 | 2021-12-28 | 科尼起重机全球公司 | Wire rope hoist stopper |
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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: 20090923 Termination date: 20110919 |