CN203895284U - Latch type shockproof limit switch - Google Patents
Latch type shockproof limit switch Download PDFInfo
- Publication number
- CN203895284U CN203895284U CN201420328839.3U CN201420328839U CN203895284U CN 203895284 U CN203895284 U CN 203895284U CN 201420328839 U CN201420328839 U CN 201420328839U CN 203895284 U CN203895284 U CN 203895284U
- Authority
- CN
- China
- Prior art keywords
- limit switch
- pin
- latch
- motion bar
- shockproof
- 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
A latch type shockproof limit switch comprises a latch, a latch hole, a limit switch body and an installation plate. The limit switch body and the latch hole are fixed on/in the installation plate, and the limit switch body is placed at the right side of the latch hole; a connecting rod of the limit switch body comprises a fixed rod and a movable rod hinged to the upper end of the fixed rod, a torsion spring is arranged at the hinged position of the fixed rod and the movable rod, and the included angle between the fixed rod and the movable rod is an obtuse angle; and a damping spring is arranged at the lower surface of the front end of the movable rod, and a pressure plate which corresponds to a switch contact of the limit switch body is arranged at the lower end of the damping spring. The latch type shockproof limit switch is simple in structure, low in manufacture cost, convenient to install and reliable in use; the switch has functions of a latch and is capable of limiting a door, namely misoperation due to shock after a door bar is closed can be avoided; and the torsion spring and damping spring are both capable of damping, thereby providing dual protection for the limit switch.
Description
Technical field
the utility model relates to a kind of limit switch, specifically a kind of shockproof limit switch of pin-type on door with shock-absorbing function that is arranged on.
Background technology
At present, the door storehouse limit switch in Wide and Thick Slab factory steel rolling district has all used rocker-type limit switch, but the vibrations in door storehouse are very serious, this kind of switch easily produces misoperation in the situation that vibrations are serious, and the vibrations of hatch door make rocking bar in ceaselessly moving, abrasion condition is serious, and through use after a while, the mechanism in rocking bar will damage.Cause spacing malfunctioningly, the rocking bar limit switch on door storehouse, annual steel rolling district need to be changed tens, causes resource serious waste.Misoperation also can cause all kinds of electric faults, even affects carrying out in order smoothly of production when serious.
Therefore, how increasing limit switch in vibrations useful life serious in the situation that, is a problem demanding prompt solution, and it can not only be saved because changing the expense of limit switch, and has guaranteed the reliability service of producing.
Utility model content
The shortcoming existing in order to overcome above-mentioned prior art, the purpose of this utility model is to provide a kind of long service life, easy for installation, can effectively avoid a shockproof limit switch of pin-type of the damage that storehouse vibrations bring.
In order to address the above problem, the utility model is by the following technical solutions: the shockproof limit switch of a kind of pin-type, it is characterized in that, comprise latch, pin hole, limit switch and mounting panel, described limit switch and pin hole are fixed on described mounting panel, limit switch is positioned at the right side of pin hole, the connecting rod of limit switch comprises fixed lever and is hinged on the motion bar of described fixed lever upper end, a torsion spring is set in the hinged place of described fixed lever and motion bar, and the angle that fixed lever and motion bar form is obtuse angle; The front end lower surface of described motion bar arranges a damping spring, is provided with the pressing plate corresponding with the make and break contact of limit switch in the lower end of described damping spring.
Further, the front end upper surface of described motion bar arranges a roller.
Further, in the bottom surface of described pressing plate, be provided with the groove adapting with make and break contact.
Further, on the pin of described latch, be equipped with spring, the right-hand member in the pin grooves of described latch is provided with check ring.
The beneficial effects of the utility model are: it is simple in structure, and cost of manufacture is low, easy for installation, use reliable; It not only has latch function, has again door limiting function, guarantees can not produce misoperation because of vibrations after a hurdle is closed; Its torsion spring and damping spring all have cushioning effect, and limit switch is played to double protection.
Accompanying drawing explanation
below in conjunction with drawings and Examples, the utility model is described further:
Fig. 1 is overall structure schematic diagram of the present utility model.
In figure, 1 latch, 11 pins, 12 springs, 13 check rings, 2 pin holes, 3 limit switches, 31 fixed levers, 32 motion bars, 33 torsion springs, 34 damping springs, 35 make and break contacts, 36 pressing plates, 37 rollers, 4 mounting panels.
Embodiment
As shown in Figure 1, specific embodiment of the utility model comprises latch 1, pin hole 2, limit switch 3 and mounting panel 4.
Described limit switch 3 and pin hole 2 are fixed on described mounting panel 4, in order to prevent that limit switch 3 foreign object false touches from moving and dust infringement, on mounting panel 4, shell can be set, and do not draw in the drawings shell, and its adopts common plastics shell.Limit switch 3 is positioned at the right side of pin hole 2, the connecting rod of limit switch 3 comprises fixed lever 31 and is hinged on the motion bar 32 of described fixed lever 31 upper ends, in the hinged place of described fixed lever 31 and motion bar 32, a torsion spring 33 is set, the angle that fixed lever 31 and motion bar 32 form is obtuse angle.The front end lower surface of described motion bar 32 arranges a damping spring 34, is provided with the pressing plate corresponding with the make and break contact 35 of limit switch 3 36 in the lower end of described damping spring 34.The front end upper surface of motion bar 32 arranges a roller 37.
In order better to make pressing plate 36 coordinate with make and break contact 35, in the bottom surface of described pressing plate 36, be provided with the groove adapting with make and break contact 35.
In order to prevent the vibrations of pin 11, on the pin 11 of described latch 1, be equipped with spring 12, the right-hand member in the pin grooves of latch 1 is provided with check ring 13.When pin 11 inserts pin hole 2, the right-hand member that is nested with the spring 12 on pin 11 is blocked by check ring 13, and spring 12 is compressed.
When visit in pass; one end of pin 11 is through pin hole 2; press down the roller 37 on the motion bar 32 that is positioned at pin hole 2 right sides; damping spring 34 moves down; the pressing plate 36 of its lower end is pressed on make and break contact 35, and limit switch 3 is connected, when door body shakes; damping spring 35 and torsion spring 33 all can be to having shaken cushioning effect, and then it is damaged to have protected limit switch 3 to be not easy.And the spring 12 on pin 11 also can prevent pin vibrations, and then prevents vibrations to reach limit switch 3.
The above is preferred implementation of the present utility model; for those skilled in the art; not departing under the prerequisite of the utility model principle, can also make some improvements and modifications, these improvements and modifications are also regarded as protection range of the present utility model.
Claims (4)
1. the shockproof limit switch of pin-type, it is characterized in that, comprise latch, pin hole, limit switch and mounting panel, described limit switch and pin hole are fixed on described mounting panel, limit switch is positioned at the right side of pin hole, the connecting rod of limit switch comprises fixed lever and is hinged on the motion bar of described fixed lever upper end, and a torsion spring is set in the hinged place of described fixed lever and motion bar, and the angle of fixed lever and motion bar formation is obtuse angle; The front end lower surface of described motion bar arranges a damping spring, is provided with the pressing plate corresponding with the make and break contact of limit switch in the lower end of described damping spring.
2. the shockproof limit switch of pin-type according to claim 1, is characterized in that, the front end upper surface of described motion bar arranges a roller.
3. the shockproof limit switch of pin-type according to claim 1, is characterized in that, is provided with the groove adapting with make and break contact in the bottom surface of described pressing plate.
4. according to the shockproof limit switch of pin-type described in claims 1 to 3 any one, it is characterized in that, on the pin of described latch, be equipped with spring, the right-hand member in the pin grooves of described latch is provided with check ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420328839.3U CN203895284U (en) | 2014-06-20 | 2014-06-20 | Latch type shockproof limit switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420328839.3U CN203895284U (en) | 2014-06-20 | 2014-06-20 | Latch type shockproof limit switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203895284U true CN203895284U (en) | 2014-10-22 |
Family
ID=51721654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420328839.3U Expired - Fee Related CN203895284U (en) | 2014-06-20 | 2014-06-20 | Latch type shockproof limit switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203895284U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105329730A (en) * | 2015-10-30 | 2016-02-17 | 中山市鑫海精密制造科技有限公司 | Elevator telescopic fence |
| CN107471382A (en) * | 2017-09-08 | 2017-12-15 | 芜湖泰庆电子科技有限公司 | A kind of plant fiber extruder |
| CN108352265A (en) * | 2015-10-23 | 2018-07-31 | 康明斯发电Ip公司 | Equilibrant force air blowing type contacts automatic change-over |
| CN112253018A (en) * | 2020-10-28 | 2021-01-22 | 中煤科工集团重庆研究院有限公司 | Spacing bolt and applied drilling rod manipulator of this spacing bolt |
-
2014
- 2014-06-20 CN CN201420328839.3U patent/CN203895284U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108352265A (en) * | 2015-10-23 | 2018-07-31 | 康明斯发电Ip公司 | Equilibrant force air blowing type contacts automatic change-over |
| CN108352265B (en) * | 2015-10-23 | 2019-10-29 | 康明斯发电Ip公司 | Equilibrant force air blowing type contacts automatic change-over |
| CN105329730A (en) * | 2015-10-30 | 2016-02-17 | 中山市鑫海精密制造科技有限公司 | Elevator telescopic fence |
| CN105329730B (en) * | 2015-10-30 | 2018-05-25 | 中山市鑫海精密制造科技有限公司 | Elevator extension guardrail |
| CN107471382A (en) * | 2017-09-08 | 2017-12-15 | 芜湖泰庆电子科技有限公司 | A kind of plant fiber extruder |
| CN112253018A (en) * | 2020-10-28 | 2021-01-22 | 中煤科工集团重庆研究院有限公司 | Spacing bolt and applied drilling rod manipulator of this spacing bolt |
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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: 20141022 Termination date: 20170620 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |