CN206574617U - A kind of used for electric hoist pair of limitation travel switch - Google Patents
A kind of used for electric hoist pair of limitation travel switch Download PDFInfo
- Publication number
- CN206574617U CN206574617U CN201720362294.1U CN201720362294U CN206574617U CN 206574617 U CN206574617 U CN 206574617U CN 201720362294 U CN201720362294 U CN 201720362294U CN 206574617 U CN206574617 U CN 206574617U
- Authority
- CN
- China
- Prior art keywords
- housing
- contact
- depression bar
- electric hoist
- travel switch
- 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
Links
Abstract
The utility model is related to a kind of used for electric hoist pair of limitation travel switch, including housing and switch module；The housing is hollow structure, and housing is provided with mounting hole, and housing top and the bottom are equipped with square pilot hole；The switch module is provided with depression bar, conductive contact blade, pin, back-moving spring and movable driving lever；The conductive contact blade is fixed in the middle part of depression bar, and its two ends upper surface is provided with lower contact；The pin is provided with a pair, and its one end is located at enclosure interior, and end lower surface is provided with upper contact, and the upper contact is located at directly over lower contact, and the pin other end is located at hull outside；The back-moving spring is enclosed on outside depression bar below conductive contact blade, and its lower end pushes lower housing portion, and ejection conductive contact blade in upper end makes lower contact and upper contact normally closed；The switch module is separated by provided with two groups side by side.The utility model has travel switch function and can prevent electric hoist suspension hook from rushing to summit, compact conformation, cost are relatively low.
Description
Technical field
The utility model is related to technical field of crane equipment, more particularly to a kind of used for electric hoist pair of limitation travel switch.
Background technology
Electric block is widely used in lifting weight, and its suspension hook, which rises to electric block after upper height limit, can stop automatically
Only, once otherwise operating personnel's carelessness can damage electric block, and the function is completed by electric hoist stopper, a kind of existing electricity
Dynamic cucurbit limiter makes the sliding block on screw mandrel do axial direction by driving screw mandrel rotation with the gear that electric gourd drum axle is connected
Move to touch travel switch, travel switch sends electric signal, so as to stop electric block operation.Through use after a while
Afterwards, travel switch internal electrical contact often ablation and cause travel switch failure, cause electric hoist suspension hook is up can not stop
Only rush to summit, therefore, many electric hoist stoppers are all again more there is provided a stroke in the outside of original travel switch now
Switch, causes the accident to prevent original travel switch failure, so not only to change the mounting structure inside limiter, also increase
Expense.
Utility model content
The utility model, which overcomes the deficiencies in the prior art, to be had travel switch function there is provided one kind and can prevent electronic
Hoist lifting hook is rushed to summit, compact conformation, lower-cost electric block travel switch.
The utility model is achieved through the following technical solutions：
A kind of used for electric hoist pair of limitation travel switch, including housing and switch module；The housing is hollow structure, shell
Body is provided with mounting hole, and housing top and the bottom are equipped with square pilot hole；The switch module is provided with depression bar, conductive contact blade, pin, multiple
Position spring and movable driving lever；The depression bar two ends are through in pilot hole and can freely up and down slided, its two ends shape, size and guiding
Hole matches, and the depression bar top is located at hull outside；The conductive contact blade is fixed in the middle part of depression bar, and its two ends upper surface is provided with down
Contact；The pin is provided with a pair, and its one end is located at enclosure interior, and end lower surface is provided with upper contact, under the upper contact is located at
Directly over contact, the pin other end is located at hull outside；The back-moving spring is enclosed on outside depression bar below conductive contact blade, its
Lower end pushes lower housing portion, and upper end ejection conductive contact blade makes lower contact and upper contact normally closed；The movable driving lever is outside housing
On the upside of portion, its one end and housing connection, the other end are located at depression bar top end；The switch module is separated by provided with two groups side by side.
In use, the utility model is arranged in electric hoist stopper by mounting hole, pin connection electric block controller；Work
When making, when the sliding block axial movement on the screw mandrel of electric hoist stopper touches the movable driving lever of left-side switch component, activity
Moulded rod is moved downward under driving lever, makes normally closed upper contact, the lower contact of switch module separated, so as to cut off being electrically connected for two pins
Connect, electric block controller controls electric block out of service according to the power-off signal of two pins；When sliding block leaves mobile striking
After bar, back-moving spring promotes conductive contact blade to move upwards, lower contact and upper contact is recovered normally closed；When this switch module occurs
During failure, electric block does not shut down, and the sliding block of limiter may proceed to move right, and touches right-side switch component, right side
Switch module can equally cut off the electrical connection of two pins, so that electric block is out of service, prevent electric hoist suspension hook from rushing
Top.
Further, the housing is square.Square casing is easy to be set up in parallel two switch modules.
Further, the mounting hole is provided with two.For travel switch to be firmly installed on to limiter base.
Further, the upper contact, the material of lower contact are argent.Metal silver contact is difficult ablation.
Further, the movable driving lever is spring leaf, the upward bending archwise in the spring leaf end.Spring leaf is easy to activity
And reset；The upward bending archwise in spring leaf end is used to flex outward spring leaf, is easy to stir.
The beneficial effects of the utility model are：It is separated by two switch modules of setting side by side in enclosure interior, when a switch
After component failure, shielded by another switch module, prevent electric hoist suspension hook from rushing to summit；Two switch modules are located at
In same housing, the inner mounting structure of electric hoist stopper is not interfered with, compact overall structure, cost is relatively low.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in figure 1, embodiment of the present utility model, including housing 1 and switch module；The housing 1 is hollow structure,
Housing 1 is provided with mounting hole 2, and the top and the bottom of housing 1 are equipped with square pilot hole 3；The switch module is provided with depression bar 4, conductive contact blade
5th, pin 6, back-moving spring 7 and movable driving lever 8；The two ends of depression bar 4 are through in pilot hole 3 and can freely up and down slided, its two ends
Shape, size and pilot hole 3 match, and the top of depression bar 4 is outside housing 1；The conductive contact blade 5 is fixed in depression bar 4
Portion, its two ends upper surface is provided with lower contact 9；The pin 6 is provided with a pair, and its one end is inside housing 1, and end lower surface is set
There is upper contact 10, the upper contact 10 is located at directly over lower contact 9, the other end of pin 6 is outside housing 1；The back-moving spring 7
The outside of depression bar 4 is enclosed on located at the lower section of conductive contact blade 5, its lower end pushes the bottom of housing 1, and upper end ejection conductive contact blade 5 makes lower contact
9 and upper contact 10 it is normally closed；The movable driving lever 8 is located at the external upper of housing 1, and its one end and housing 1 are connected, and the other end is located at pressure
The top end of bar 4；The switch module is separated by provided with two groups side by side.
In use, the utility model is arranged in electric hoist stopper by mounting hole 2, pin 6 connects electronic calabash
Reed controller；During work, when the sliding block axial movement on the screw mandrel of electric hoist stopper touches the activity of left-side switch component
During driving lever 8, movable 8 times moulded rods of driving lever 4 are moved downward, and separate the normally closed upper contact 10 of switch module, lower contact 9, so that
The electrical connection of two pins 6 is cut off, electric block controller is according to the power-off signal of two pins 6, control electric block stopping
Operation, after sliding block leaves movable driving lever 8, back-moving spring 7 promotes conductive contact blade 5 to move upwards, makes lower contact 9 and upper contact 10
Recover normally closed；When this switch module breaks down, electric block does not shut down, and the sliding block of limiter may proceed to the right
It is mobile, right-side switch component is touched, right-side switch component can equally cut off the electrical connection of two pins 6, so that electric block
It is out of service, prevent electric hoist suspension hook from rushing to summit.
For ease of being set up in parallel two switch modules, the housing 1 is square.
For ease of travel switch is firmly installed on limiter base, the mounting hole 2 is provided with two.
To make contact be difficult ablation, the upper contact 10, the material of lower contact 9 are argent.
To be easy to activity and resetting, the movable driving lever 8 is spring leaf；For ease of stirring, the spring leaf end is upward
Bending archwise.
It is described above, embodiment only of the present utility model, but protection domain of the present utility model do not limit to
In this, any change or replacement expected without creative work should all be covered within protection domain of the present utility model.
Therefore, protection domain of the present utility model should be determined by the scope of protection defined in the claims.
Claims (5)
1. a kind of used for electric hoist pair of limitation travel switch, it is characterised in that:Including housing and switch module；During the housing is
Hollow structure, housing is provided with mounting hole, and housing top and the bottom are equipped with square pilot hole；The switch module is touched provided with depression bar, conduction
Piece, pin, back-moving spring and movable driving lever；The depression bar two ends are through in pilot hole and can freely up and down slided, its two ends shape,
Size and pilot hole match, and the depression bar top is located at hull outside；The conductive contact blade is fixed in the middle part of depression bar, on its two ends
Surface is provided with lower contact；The pin is provided with a pair, and its one end is located at enclosure interior, and end lower surface is provided with upper contact, on this
Contact is located at directly over lower contact, and the pin other end is located at hull outside；The back-moving spring is enclosed on outside depression bar located at conduction
Below contact, its lower end pushes lower housing portion, and upper end ejection conductive contact blade makes lower contact and upper contact normally closed；The movable driving lever
On the upside of hull outside, its one end and housing connection, the other end are located at depression bar top end；The switch module is separated by side by side
Provided with two groups.
2. used for electric hoist pair of limitation travel switch of one kind according to claim 1, it is characterised in that：The housing is side
Shape.
3. used for electric hoist pair of limitation travel switch of one kind according to claim 1, it is characterised in that：The mounting hole is set
There are two.
4. used for electric hoist pair of limitation travel switch of one kind according to claim 1, it is characterised in that：The upper contact,
The material of lower contact is argent.
5. used for electric hoist pair of limitation travel switch of one kind according to claim 1, it is characterised in that：The movable driving lever
For spring leaf, the upward bending archwise in the spring leaf end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720362294.1U CN206574617U (en) | 2017-04-09 | 2017-04-09 | A kind of used for electric hoist pair of limitation travel switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720362294.1U CN206574617U (en) | 2017-04-09 | 2017-04-09 | A kind of used for electric hoist pair of limitation travel switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206574617U true CN206574617U (en) | 2017-10-20 |
Family
ID=60053825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720362294.1U Expired - Fee Related CN206574617U (en) | 2017-04-09 | 2017-04-09 | A kind of used for electric hoist pair of limitation travel switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206574617U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109594114A (en) * | 2018-11-23 | 2019-04-09 | 襄阳市志达海成科技实业有限公司 | A kind of electrophoresis line conveying hanger power connection equipment |
| CN110316671A (en) * | 2019-07-31 | 2019-10-11 | 诺威起重设备（苏州）有限公司 | Explosion-proof electric hoist limiting device and explosion-proof electric hoist |
| CN110316671B (en) * | 2019-07-31 | 2024-05-17 | 诺威起重设备（苏州）有限公司 | Explosion-proof electric hoist stop device and explosion-proof electric hoist |
-
2017
- 2017-04-09 CN CN201720362294.1U patent/CN206574617U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109594114A (en) * | 2018-11-23 | 2019-04-09 | 襄阳市志达海成科技实业有限公司 | A kind of electrophoresis line conveying hanger power connection equipment |
| CN109594114B (en) * | 2018-11-23 | 2024-01-23 | 襄阳市志达海成科技实业有限公司 | Hanger power connection device for conveying electrophoresis lines |
| CN110316671A (en) * | 2019-07-31 | 2019-10-11 | 诺威起重设备（苏州）有限公司 | Explosion-proof electric hoist limiting device and explosion-proof electric hoist |
| CN110316671B (en) * | 2019-07-31 | 2024-05-17 | 诺威起重设备（苏州）有限公司 | Explosion-proof electric hoist stop device and explosion-proof electric hoist |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171020 Termination date: 20180409 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |