CN203367045U - Limit switch and linear actuator having the limit switch - Google Patents
Limit switch and linear actuator having the limit switch Download PDFInfo
- Publication number
- CN203367045U CN203367045U CN 201320405425 CN201320405425U CN203367045U CN 203367045 U CN203367045 U CN 203367045U CN 201320405425 CN201320405425 CN 201320405425 CN 201320405425 U CN201320405425 U CN 201320405425U CN 203367045 U CN203367045 U CN 203367045U
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- limit switch
- insulation shell
- shell block
- linear actuators
- pin
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Abstract
The utility model relates to a limit switch and a linear actuator having the limit switch. The limit switch comprises an insulation shell seat, a pressure block, pins, an elastic guide connection set and a diode. The insulation shell seat is provided with an opening and a plurality of slots; the pressure block is arranged at the top surface of the insulation shell seat and protrudes out of the opening; a pair of pins are separately arranged inside the insulation shell seat and respectively passes out of the slots; the elastic guide connection set comprises an elastic element pressed by the pressure block, and a guide connection sheet connected with the elastic element; the guide connection sheet is in guide connection with the pair of pins; the diode is arranged inside the insulation shell seat and is provided with two guide pins; and the two guide pins are respectively connected with the pair of pins in the insulation shell seat. According to the linear actuator, a power supply is controlled through the diode and the limit switch, and since the limit switch is internally provided with the diode, the diode is free from being additionally welded on the outer pins of the limit switch, therefore, the electrical conductive connection of the limit switch is simplified and the automation of a manufacture process can be facilitated.
Description
Technical field
The relevant a kind of limit switch of the utility model, espespecially a kind of limit switch and there is the linear actuators of this limit switch.
Background technology
Linear actuators (Linear Actuator) now has been widely used on the medical equipment such as sick bed, electrically propelled chair or equipment, or in field of other running of need to doing to stretch, contract.
Current a kind of linear actuators mainly comprises driving element, transmission device, telescoping tube and two limit switches.When telescoping tube advances and touch wherein a limit switch, even the outage of advancing of driving element only can move telescoping tube backward; Moreover, when telescoping tube retreats and touch another limit switch, driving element retreat outage, telescoping tube only can be moved forward.Accordingly, the start of this telescoping tube (advance or step back) can come the supply to power supply to control by two limit switches, and then controls advancing or stepping back moving of telescoping tube.
Please refer to Fig. 1, its show linear actuators now limit switch schematic diagram is set.It is upper that limit switch 1a in linear actuators is arranged on a supporting bracket 2a, and again, this supporting bracket 2a separately is provided with a diode 3a element and a wire 4a.This limit switch 1a utilizes the rectification function of diode 3a and only allows electric current to be passed through by single direction, blocking-up when reverse.When group is established, the external pins 5a of this limit switch 1a is through this supporting bracket 2a, finally again by artificial welding manner, this diode 3a element and this wire 4a are electrically connected to the pin 5a of this limit switch 1a, accordingly, this limit switch 1a, and the signal of this diode 3a by this wire 4a, conduct to control unit.
Yet, in said structure, this limit switch 1a and this diode 2a are quite consuming time by the combination of artificial welding, requiring great effort and locating is difficult for, and causes the difficulty on assembling operation.
The utility model content
In view of this, a purpose of the present utility model is to provide a kind of limit switch, and it can save the operation of welding diode, with what simplify limit switch, is electrically conducted and is beneficial to the manufacture craft automation.
In order to reach above-mentioned purpose, the utility model provides a kind of limit switch, comprising:
One insulation shell block, it has an opening and a plurality of fluting;
One briquetting, it is arranged on end face protruding being exposed at outside this opening of this insulation shell block;
A pair of pin, its separation is arranged in this insulation shell block, and passes respectively those flutings;
One group that is flexibly connected, the guide-joining plate that it comprises a flexible member that pressed by this briquetting and connects this flexible member, two ends of this guide-joining plate correspondence respectively connect this to pin; And
One diode, it is arranged in this insulation shell block, and this diode has two lead foots, and this two lead foot is connected respectively this to pin in this insulation shell block.
As the preferred version of above-mentioned a kind of limit switch, wherein this insulation shell block has one first accommodation space, and this opening and those flutings are communicated with this first accommodation space.
As the preferred version of above-mentioned a kind of limit switch, wherein this insulation shell block forms one second accommodation space in this first accommodation space, and this diode is positioned in this second accommodation space.
As the preferred version of above-mentioned a kind of limit switch, wherein this insulation shell block forms two interpolation slits that are communicated with this first accommodation space and this second accommodation space, and this two lead foot correspondence respectively is set in this two interpolation slit and is electrically conducted this to pin.
As the preferred version of above-mentioned a kind of limit switch, wherein this flexible member is a spring, and an end of this spring is fixed on this wherein pin to pin, and the other end is fixed on this guide-joining plate.
Another purpose of the present utility model is to provide a kind of linear actuators with limit switch, and it saves being welded to each other between diode and limit switch, therefore can simplify the operation that is electrically conducted of limit switch, is conducive to the manufacture craft automation.
In order to reach above-mentioned purpose, the utility model provides a kind of linear actuators with limit switch, comprising:
One casing;
One transmission device, it is arranged in this casing; And
At least one limit switch, it is arranged in this casing and is subject to the shake-up of this transmission device and start, and this limit switch comprises:
One insulation shell block, it has opening and a plurality of fluting;
One briquetting, it is arranged on end face protruding being exposed at outside this opening of this insulation shell block;
A pair of pin, its separation is arranged in this insulation shell block, and passes respectively those flutings;
One group that is flexibly connected, the guide-joining plate that it comprises a flexible member that pressed by this briquetting and connects this flexible member, two ends of this guide-joining plate correspondence respectively connect this to pin; And
One diode, it is arranged in this insulation shell block, and this diode has two lead foots, and this two lead foot is connected respectively this to pin in this insulation shell block.
As above-mentioned a kind of preferred version with linear actuators of limit switch, wherein this transmission device comprises an actuating mechanism, and this actuating mechanism comprises a motor and is subject to this electric motor driven transmission group.
As above-mentioned a kind of preferred version with linear actuators of limit switch, wherein this transmission device more comprises a telescoping tube, and this telescoping tube is driven by this transmission group and stretches out or this casing of retracting.
As above-mentioned a kind of preferred version with linear actuators of limit switch, wherein this limit switch is to should the telescoping tube setting.
As above-mentioned a kind of preferred version with linear actuators of limit switch, the wherein said linear actuators with limit switch more comprises a supporting bracket and a wire, this limit switch is arranged on a side of this supporting bracket, and this wire is arranged on the another side of this supporting bracket and is electrically connected this to pin.
As above-mentioned a kind of preferred version with linear actuators of limit switch, wherein this insulation shell block has one first accommodation space, and this opening and those flutings are communicated with this first accommodation space.
As above-mentioned a kind of preferred version with linear actuators of limit switch, wherein this insulation shell block forms one second accommodation space in this first accommodation space, in this second accommodation space, is positioned with this diode.
As above-mentioned a kind of preferred version with linear actuators of limit switch, wherein this insulation shell block forms two interpolation slits that are communicated with this first accommodation space and this second accommodation space, and this two lead foot correspondence respectively is set in this two interpolation slit and is electrically conducted this to pin.
As above-mentioned a kind of preferred version with linear actuators of limit switch, wherein this flexible member is a spring, and an end of this spring is fixed on this wherein pin to pin, and the other end is fixed on this guide-joining plate.
As above-mentioned a kind of preferred version with linear actuators of limit switch, wherein this casing comprises shell block and is combined in the outer tube in this shell block the place ahead.
As above-mentioned a kind of preferred version with linear actuators of limit switch, wherein this shell block and this outer tube are the integral type moulding.
As above-mentioned a kind of preferred version with linear actuators of limit switch, wherein this casing comprises one first housing and one second housing that relative cover closes.
As above-mentioned a kind of preferred version with linear actuators of limit switch, wherein this casing more comprises a waterproof adhesive tape, and this waterproof adhesive tape is arranged on the junction of this first housing and this second housing.
As above-mentioned a kind of preferred version with linear actuators of limit switch, wherein this casing consists of plastic material.
Compared to known technology, linear actuators of the present utility model is made power supply by diode and limit switch and is controlled; The inside of limit switch of the present utility model is provided with diode, therefore do not need extra again by welding diode on the external pins of limit switch, save the welding sequence of known limits switch and diode, with the simplification group, establish man-hour and manpower, thereby be conducive to the enforcement of automated production technique.
The accompanying drawing explanation
The limit switch that Fig. 1 is the known linear actuator schematic diagram is set;
The combination schematic diagram that Fig. 2 is limit switch of the present utility model;
The three-dimensional exploded view that Fig. 3 is limit switch of the present utility model;
The assembled sectional view that Fig. 4 is limit switch of the present utility model;
The schematic diagram that arranges that Fig. 5 is limit switch of the present utility model;
Fig. 6 is the linear actuators with limit switch of the present utility model;
Fig. 7 is the application schematic diagram with linear actuators of limit switch of the present utility model;
Fig. 8 is the Another Application schematic diagram with linear actuators of limit switch of the present utility model;
The second embodiment of the casing that Fig. 9 is the linear actuators with limit switch of the present utility model.
[main element symbol description]
1,1 '-limit switch; The 1a-linear actuators; The 10-shell block that insulate; 100-the first accommodation space; 101-the second accommodation space; The 102-interpolation slit; The 11-opening; The 12-fluting;
2,2 '-linear actuators; The 2a-supporting bracket; The 20-briquetting;
The 3a-diode; The 30-pin;
The 4a-wire; The 40-group that is flexibly connected; The 41-flexible member; The 42-guide-joining plate;
The 5a-pin; The 50-diode; The 51-lead foot;
60,60 '-casing; The 61-shell block; The 61 '-the first housing; The 62-outer tube; The 62 '-the second housing; 63 '-waterproof adhesive tape;
70,70 '-actuating mechanism; 700,700 '-transmission device; The 71-motor; The 72-transmission group; 721-the first touch part;
80,80 '-telescoping tube; 81-the second touch part;
The 90-supporting bracket; The 91-wire.
Embodiment
Relevant detailed description of the present utility model and technology contents, will coordinate accompanying drawing to be described as follows, yet accompanying drawing as illustrative purposes only, not for limiting the utility model.
Please refer to Fig. 2 to Fig. 4, be respectively combination schematic diagram, three-dimensional exploded view and the assembled sectional view of limit switch of the present utility model.Limit switch 1 of the present utility model comprise an insulation shell block 10, a briquetting 20, a pair of pin 30, be flexibly connected the group 40 and one diode 50.This briquetting 20 is arranged on this insulation shell block 10, this be flexibly connected the group 40 and this diode 50 be arranged in this insulation shell block 10, this is from this, pin 30 to be passed respectively to 30 of pins, in order to electric connection to be provided.
This insulation shell block 10 is consisted of insulation materials such as plastics.This insulation shell block 10 has one first accommodation space 100, an opening 11 and a plurality of fluting 12, and this opening 11 and those flutings 12 are communicated with this first accommodation space 100.In the present embodiment, this insulation shell block 10 forms one second accommodation space 101 in this first accommodation space 100, and forms two interpolation slits 102 that are communicated with this first accommodation space 100 and this second accommodation space 101.
This briquetting 20 is arranged on the end face of this insulation shell block 10, and this briquetting 20 is connected on this opening 11, and passes and part is protruding is exposed at outside this opening 11 from this opening 11.Again, this is separated and is arranged in this accommodation space 100 pin 30, and passes respectively those flutings 12, so that the electric connection other electron component to be provided.
These group 40 guide-joining plates 42 that comprise a flexible member 41 that pressed by this briquetting 20 and connect this flexible member 41 that are flexibly connected.This flexible member 41 can be a spring, and this this briquetting 20 of flexible member 41 elasticity butts.One end of this flexible member 41 is fixed on this wherein pin to pin 30, the other end is fixed on this guide-joining plate 42.Two ends of this guide-joining plate 42 correspondence respectively connect this to pin 30.In the present embodiment, an end of this flexible member 41 is fixed on this wherein pin to pin 30, and the other end is to be fixed on this guide-joining plate 42.
Moreover this diode 50 is arranged in this insulation shell block 10.This diode 50 has two lead foots 51, and this two lead foot 51 is connected respectively this to pin 30 in this insulation shell block 10.This two lead foot 51 correspondence respectively is set in this two interpolation slit 102 and is electrically conducted this to pin 30, to make this diode 50, is positioned in this second accommodation space 101.
While using this limit switch 1, an end of this guide-joining plate 42 connects this wherein pin to pin 30, and the other end is to connect another pin, and now, this limit switch 1 remains on the state of conducting.Outside this briquetting 20 is subject to, try hard to recommend while pulling, this briquetting 20 moves down and presses this flexible member 41, and this flexible member 41 drives immediately this guide-joining plate 42 and leaves this another pin, and now, 1 of this limit switch is the state that remains on not conducting.
Please separately with reference to Fig. 5 and Fig. 6, for showing schematic diagram being set and thering is the linear actuators of limit switch of limit switch of the present utility model.Limit switch 1 of the present utility model can be applicable on a linear actuators 2, in order to control advancing and retreating of this linear actuators 2.This linear actuators 2 comprises a casing 60, a transmission device 700 and at least one limit switch 1, comprises limit switch 1, limit switch 1 ' in the present embodiment.The structure of this limit switch 1, limit switch 1 ' as aforementioned, repeats no more in this in detail.This limit switch 1, limit switch 1 ' separated and is arranged in this casing 60, and is subject to the shake-up of this transmission device 700 and start.
This casing 60 can be plastic material and forms, and this casing 60 comprises a shell block 61 and be combined in an outer tube 62 in these shell block 61 the place aheads, and this shell block 61 and this outer tube 62 can be integral molding.In the present embodiment, this transmission device 700 comprises an actuating mechanism 70 and a telescoping tube 80.This actuating mechanism 70 is arranged in the shell block 61 of this casing 60, the transmission group 72 that this actuating mechanism 70 comprises a motor 71 and driven by this motor 71.This telescoping tube 80 is subject to this transmission group 72 drive and stretch out or this casing 60 of retracting.
In the present embodiment, this linear actuators 2 more comprises a supporting bracket 90 and a wire 91 (please separately with reference to Fig. 4).This limit switch 1, limit switch 1 ' are arranged on a side of this supporting bracket 90, and this wire 91 is arranged on the another side of this supporting bracket and is electrically connected this to pin 30.This limit switch 1, limit switch 1 ' separation are arranged on this supporting bracket 90 in addition.
Please refer to Fig. 7, is the application schematic diagram of the casing that shows linear actuators of the present utility model; In the present embodiment, this limit switch 1, limit switch 1 ' are subject to the shake-up of this transmission group 72 and start, and this transmission group 72 has one first touch part 721.Therefore, when transmission group 72 advances, the first touch part 721 can touch and arrive a wherein limit switch 1, even the now outage of advancing of actuating mechanism 70; On the other hand, when transmission group 72 retreats, when the first touch part 721 touches to another limit switch 1 ', actuating mechanism 70 retreat outage.Accordingly, the start of this transmission group 72 can come the supply to power supply to control by this limit switch 1, limit switch 1 '.
Referring again to Fig. 8, for showing the Another Application schematic diagram of linear actuators of the present utility model; The execution mode of this execution mode and Fig. 7 is roughly the same, its difference is that this limit switch 1, limit switch 1 ' are subject to the shake-up of this telescoping tube 80 and start, this telescoping tube 80 has one second touch part 81, and limit switch 1 ' is to arranging by telescoping tube 80.In like manner, when telescoping tube 80 advances, the second touch part 81 can touch and arrive a wherein limit switch 1, even the now outage of advancing of actuating mechanism 70; On the other hand, when telescoping tube is after 80s, move back, when the second touch part 81 touches to another limit switch 1 ', actuating mechanism 70 retreat outage.
Please, separately with reference to Fig. 9, show another embodiment of the casing of linear actuators of the present utility model; The present embodiment and last embodiment are roughly the same, and linear actuators 2 ' comprises a casing 60 ', a transmission device 700 ' (comprising an actuating mechanism 70 ' and a telescoping tube 80 ') and limit switch 1, limit switch 1 '.The present embodiment place different from last embodiment is the enforcement state of casing 60 '.In the present embodiment, this casing 60 ' comprises one first housing 61 ' and one second housing 62 ' that relative cover closes.Preferably, this casing 60 ' more comprises a waterproof adhesive tape 63 ', and this waterproof adhesive tape 63 ' is arranged on the junction of this first housing 61 ' and this second housing 62 ', so that the sealing of this casing 60 ' to be provided.
The above; it is only preferred embodiment of the present utility model; not in order to limit scope of patent protection of the present utility model, therefore such as use the variations such as equivalence techniques that the utility model patent spirit does, means, all should in like manner all be contained in scope of patent protection of the present utility model.
Claims (19)
1. a limit switch, is characterized in that, comprising:
One insulation shell block, it has an opening and a plurality of fluting;
One briquetting, it is arranged on end face protruding being exposed at outside this opening of this insulation shell block;
A pair of pin, its separation is arranged in this insulation shell block, and passes respectively those flutings;
One group that is flexibly connected, the guide-joining plate that it comprises a flexible member that pressed by this briquetting and connects this flexible member, two ends of this guide-joining plate correspondence respectively connect this to pin; And
One diode, it is arranged in this insulation shell block, and this diode has two lead foots, and this two lead foot is connected respectively this to pin in this insulation shell block.
2. limit switch as claimed in claim 1, is characterized in that, this insulation shell block has one first accommodation space, and this opening and those flutings are communicated with this first accommodation space.
3. limit switch as claimed in claim 2, is characterized in that, this insulation shell block forms one second accommodation space in this first accommodation space, and this diode is positioned in this second accommodation space.
4. limit switch as claimed in claim 3, is characterized in that, this insulation shell block forms two interpolation slits that are communicated with this first accommodation space and this second accommodation space, and this two lead foot correspondence respectively is set in this two interpolation slit and is electrically conducted this to pin.
5. limit switch as claimed in claim 1, is characterized in that, this flexible member is a spring, and an end of this spring is fixed on this wherein pin to pin, and the other end is fixed on this guide-joining plate.
6. the linear actuators with limit switch, is characterized in that, comprising:
One casing;
One transmission device, it is arranged in this casing; And
At least one limit switch, it is arranged in this casing and is subject to the shake-up of this transmission device and start, and this limit switch comprises:
One insulation shell block, it has an opening and a plurality of fluting;
One briquetting, it is arranged on end face protruding being exposed at outside this opening of this insulation shell block;
A pair of pin, its separation is arranged in this insulation shell block, and passes respectively those flutings;
One group that is flexibly connected, the guide-joining plate that it comprises a flexible member that pressed by this briquetting and connects this flexible member, two ends of this guide-joining plate correspondence respectively connect this to pin; And
One diode, it is arranged in this insulation shell block, and this diode has two lead foots, and this two lead foot is connected respectively this to pin in this insulation shell block.
7. the linear actuators with limit switch as claimed in claim 6, is characterized in that, this transmission device comprises an actuating mechanism, and this actuating mechanism comprises a motor and is subject to this electric motor driven transmission group.
8. the linear actuators with limit switch as claimed in claim 7, is characterized in that, this transmission device more comprises a telescoping tube, and this telescoping tube is driven by this transmission group and stretches out or this casing of retracting.
9. the linear actuators with limit switch as claimed in claim 8, is characterized in that, this limit switch is to should the telescoping tube setting.
10. the linear actuators with limit switch as claimed in claim 6, it is characterized in that, more comprise a supporting bracket and a wire, this limit switch is arranged on a side of this supporting bracket, and this wire is arranged on the another side of this supporting bracket and is electrically connected this to pin.
11. have the linear actuators of limit switch as claimed in claim 6, it is characterized in that, this insulation shell block has one first accommodation space, and this opening and those flutings are communicated with this first accommodation space.
12. have the linear actuators of limit switch as claimed in claim 11, it is characterized in that, this insulation shell block forms one second accommodation space in this first accommodation space, in this second accommodation space, is positioned with this diode.
The linear actuators that there is limit switch 13. as claimed in claim 12, it is characterized in that, this insulation shell block forms two interpolation slits that are communicated with this first accommodation space and this second accommodation space, and this two lead foot correspondence respectively is set in this two interpolation slit and is electrically conducted this to pin.
14. have the linear actuators of limit switch as claimed in claim 6, it is characterized in that, this flexible member is a spring, and an end of this spring is fixed on this wherein pin to pin, and the other end is fixed on this guide-joining plate.
15. have the linear actuators of limit switch as claimed in claim 6, it is characterized in that, this casing comprises shell block and is combined in an outer tube in this shell block the place ahead.
16. have the linear actuators of limit switch as claimed in claim 15, it is characterized in that, this shell block and this outer tube are the integral type moulding.
17. have the linear actuators of limit switch as claimed in claim 6, it is characterized in that, this casing comprises one first housing and one second housing that relative cover closes.
18. have the linear actuators of limit switch as claimed in claim 17, it is characterized in that, this casing more comprises a waterproof adhesive tape, and this waterproof adhesive tape is arranged on the junction of this first housing and this second housing.
19. have the linear actuators of limit switch as claimed in claim 6, it is characterized in that, this casing consists of plastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320405425 CN203367045U (en) | 2013-07-09 | 2013-07-09 | Limit switch and linear actuator having the limit switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320405425 CN203367045U (en) | 2013-07-09 | 2013-07-09 | Limit switch and linear actuator having the limit switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203367045U true CN203367045U (en) | 2013-12-25 |
Family
ID=49814771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320405425 Expired - Fee Related CN203367045U (en) | 2013-07-09 | 2013-07-09 | Limit switch and linear actuator having the limit switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203367045U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104282453A (en) * | 2013-07-09 | 2015-01-14 | 第一传动科技股份有限公司 | Limit switch and linear actuator with limit switch |
-
2013
- 2013-07-09 CN CN 201320405425 patent/CN203367045U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104282453A (en) * | 2013-07-09 | 2015-01-14 | 第一传动科技股份有限公司 | Limit switch and linear actuator with limit switch |
| CN104282453B (en) * | 2013-07-09 | 2016-12-28 | 第一传动科技股份有限公司 | Limit switch and there is the linear actuators of this limit switch |
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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: 20131225 Termination date: 20170709 |