CN202434369U - Waterproof limiting switch - Google Patents
Waterproof limiting switch Download PDFInfo
- Publication number
- CN202434369U CN202434369U CN2012200027477U CN201220002747U CN202434369U CN 202434369 U CN202434369 U CN 202434369U CN 2012200027477 U CN2012200027477 U CN 2012200027477U CN 201220002747 U CN201220002747 U CN 201220002747U CN 202434369 U CN202434369 U CN 202434369U
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- China
- Prior art keywords
- switch
- rotating shaft
- lid
- bottom case
- contact
- 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 - Lifetime
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- Switch Cases, Indication, And Locking (AREA)
Abstract
The utility model discloses a waterproof limiting switch. According to the limiting switch for a fire lift, a switch body is protected in a box body through a switch bottom box and a box cover which covers the opening side of the switch bottom box; furthermore, the switch bottom box is sealed by a box cover sealing ring arranged between the box cover and the edge of the outer side of the switch bottom box and a rotating shaft end socket sealing device arranged between a switch rotating shaft and the box cover, so that the switch body in the box body can be effectively isolated from the environment, and the effect of protecting the switch body in the box body and effectively repelling water is realized. The waterproof limiting switch is used in the field of traditional advanced technology modification industries.
Description
Technical field
The utility model relates to the switch that a kind of electric power system is used, and particularly relates to a kind of limit switch of Fire lift.
Background technology
On April 11st, 2007; " Code for fire protection design of buildings " and " Code for fire protection design of high rise buildings " makes explicit provisions to the scope that is provided with of Fire lift; Use device need have water-proof function to Fire lift and also proposed requirement; But the limit switch that in Fire lift, uses does not at present all have water-proof function, can not effectively ensure its use in Fire lift.
The utility model content
For addressing the above problem, the utility model provides a kind of limit switch with water-proof function.
The utility model solves the technical scheme that its technical problem adopted:
A kind of waterproof limit switch; Comprise Switch main body and be used for fixing the switch bottom case that Switch main body is installed; But Switch main body comprises the switch fixed contact that is fixedly installed in the switch bottom case and can the switch rotating shaft in being installed on switch bottom case rotate the also switch moving contact of contact-making switch fixed contact; Other is provided with the lid that is covered on the switch bottom case open side; Be provided with the lid sealing ring between the outer ledge of the inboard and switch bottom case of lid, the switch rotating shaft has an end to stretch out lid, stretches out between switch rotating shaft and the lid of lid to be provided with rotating shaft termination sealing device.
Further as the improvement of the utility model technical scheme, an end that stretches out lid in the switch rotating shaft is equipped with rocking arm, and rocking arm is provided with can be around the roller of its mounting points rotation.
Further as the improvement of the utility model technical scheme; Rotating shaft termination sealing device comprises the sealing axle sleeve that is arranged at switch rotating shaft periphery; Be provided with sealed bearing between sealing axle sleeve and switch rotating shaft; Be provided with the sleeve sealing circle between the periphery of sealing axle sleeve and lid, the lateral surface that sleeve sealing circle and lid are close in the periphery of switch rotating shaft is provided with the termination gasket seal.
Further as the improvement of the utility model technical scheme; Be provided with the contact pad that is fixedly installed in the switch rotating shaft in the switch bottom case; Contact pad is provided with and can drives the contact bar that the switch moving contact pivots, and is provided with back-moving spring between contact pad and switch bottom case inwall.
The beneficial effect of the utility model: this limit switch that is used for Fire lift is protected Switch main body in box body through switch bottom case and the lid that is covered on the switch bottom case open side; Simultaneously through being arranged on the lid sealing ring between lid and switch bottom case outer ledge; And the rotating shaft termination sealing device between switch rotating shaft and lid seals switch bottom case; Thereby can effectively protect the Switch main body in the box body effectively to be hedged off from the outer world; Reach protection box body switch inside body, make its effective waterproof effect.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further:
Fig. 1 is the utility model embodiment internal structure side sectional view;
Fig. 2 is the utility model embodiment internal structure overall schematic;
Fig. 3 is the utility model embodiment rearview.
Embodiment
With reference to Fig. 1～Fig. 3; The utility model is a kind of waterproof limit switch; Comprise Switch main body and be used for fixing the switch bottom case 1 that Switch main body is installed; But Switch main body comprises the switch fixed contact 2 that is fixedly installed in the switch bottom case 1 and can rotate the also switch moving contact 4 of contact-making switch fixed contact 2 around the switch rotating shaft in being installed on switch bottom case 13 that other is provided with the lid 11 that is covered on switch bottom case 1 open side, is provided with lid sealing ring 12 between the outer ledge of lid 11 inboards and switch bottom case 1; Switch rotating shaft 3 has an end to stretch out lid 11, and the switch rotating shaft 3 and 11 of the lids that stretch out lid 11 are provided with rotating shaft termination sealing device.
This limit switch that is used for Fire lift is protected Switch main body in box body through switch bottom case 1 and the lid 11 that is covered on switch bottom case 1 open side; Simultaneously through being arranged on the lid sealing ring 12 between lid 11 and switch bottom case outer ledge; And the rotating shaft termination sealing device of 11 of switch rotating shaft 3 and lids seals switch bottom case 1; Thereby can effectively protect the Switch main body in the box body effectively to be hedged off from the outer world, reach protection box body switch inside body, make its effective waterproof effect.
As the utility model preferred embodiment, an end that stretches out lid 11 in the switch rotating shaft 3 is equipped with Rocker arm 5, and Rocker arm 5 is provided with can be around the roller 51 of its mounting points rotation.
As the utility model preferred embodiment; Rotating shaft termination sealing device comprises the sealing axle sleeve 31 that is arranged at switch rotating shaft 3 peripheries; 3 of sealing axle sleeve 31 and switch rotating shafts are provided with sealed bearing 32; 11 of the periphery of sealing axle sleeve 31 and lids are provided with sleeve sealing circle 33, and the lateral surface that sleeve sealing circle 33 and lid 11 are close in the periphery of switch rotating shaft 3 is provided with termination gasket seal 34.
This limit switch is except being provided with sealing device in switch bottom case 1 and 11 of lids; Also be provided with the rotating shaft termination sealing device that comprises sealing axle sleeve 31, sealed bearing 32 and sleeve sealing circle 33 and termination gasket seal 34 in switch rotating shaft 3 of stretching out lid 11 and 11 of lids; Can switch rotating shaft 3 and 11 of the lids that stretch out lid 11 effectively be sealed; Thereby the Switch main body integral body in the switch bottom case 1 is protected, and carries out more efficiently waterproof.
As the utility model preferred embodiment; Be provided with the contact pad 41 that is fixedly installed in the switch rotating shaft 3 in the switch bottom case 1; Contact pad 41 is provided with and can drives the contact bar 42 that switch moving contact 4 pivots, and is provided with back-moving spring 43 between contact pad 41 and switch bottom case 1 inwall.
In the design of this limit switch; Because limit switch is the safety component of elevator; The initial pressure of pair roller 51, end pressure all have specific (special) requirements; Swing to Rocker arm 5 also has higher requirement, and this limit switch is provided with sealed bearing 32 in switch rotating shaft 3 and 11 of lids, and the installation of this sealed bearing 32 can make that actions such as the swing of Rocker arm 5, the rotation of contact pad 41 and the switching of switch moving contact 4 are more stable.
This water proof limit switch can also be effectively dustproof when can carrying out effective waterproof, and its stable performance more can effectively be protected the use of this limit switch on Fire lift.
Certainly; The invention is not limited to above-mentioned execution mode; Those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite of the utility model spirit, modification that these are equal to or replacement all are included in the application's claim institute restricted portion.
Claims (4)
1. waterproof limit switch; It is characterized in that: comprise Switch main body and be used for fixing the switch bottom case (1) that Switch main body is installed; Said Switch main body comprise the switch fixed contact (2) that is fixedly installed in the switch bottom case (1) with can be around the switch rotating shaft (3) be installed on switch bottom case (1) in but rotate the also switch moving contact (4) of contact-making switch fixed contact (2); Other is provided with the lid (11) that is covered on switch bottom case (1) open side; Be provided with lid sealing ring (12) between the outer ledge of said lid (11) inboard and switch bottom case (1); Said switch rotating shaft (3) has an end to stretch out lid (11), stretches out between switch rotating shaft (3) and the lid (11) of said lid (11) to be provided with rotating shaft termination sealing device.
2. waterproof limit switch according to claim 1 is characterized in that: an end that stretches out lid (11) in the said switch rotating shaft (3) is equipped with rocking arm (5), and said rocking arm (5) is provided with can be around the roller (51) of its mounting points rotation.
3. waterproof limit switch according to claim 1 and 2; It is characterized in that: said rotating shaft termination sealing device comprises the sealing axle sleeve (31) that is arranged at switch rotating shaft (3) periphery; Be provided with sealed bearing (32) between said sealing axle sleeve (31) and switch rotating shaft (3); Be provided with sleeve sealing circle (33) between the periphery of said sealing axle sleeve (31) and lid (11), the lateral surface that sleeve sealing circle (33) and lid (11) are close in the periphery of said switch rotating shaft (3) is provided with termination gasket seal (34).
4. waterproof limit switch according to claim 1; It is characterized in that: be provided with the contact pad (41) that is fixedly installed in the switch rotating shaft (3) in the said switch bottom case (1); Said contact pad (41) is provided with and can drives the contact bar (42) that switch moving contact (4) pivots, and is provided with back-moving spring (43) between said contact pad (41) and switch bottom case (1) inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200027477U CN202434369U (en) | 2012-01-06 | 2012-01-06 | Waterproof limiting switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200027477U CN202434369U (en) | 2012-01-06 | 2012-01-06 | Waterproof limiting switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202434369U true CN202434369U (en) | 2012-09-12 |
Family
ID=46783796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200027477U Expired - Lifetime CN202434369U (en) | 2012-01-06 | 2012-01-06 | Waterproof limiting switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202434369U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109243876A (en) * | 2018-11-01 | 2019-01-18 | 常熟市创新自动化控制仪表有限公司 | A kind of limit switch with protective device |
-
2012
- 2012-01-06 CN CN2012200027477U patent/CN202434369U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109243876A (en) * | 2018-11-01 | 2019-01-18 | 常熟市创新自动化控制仪表有限公司 | A kind of limit switch with protective device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120912 |
|
| CX01 | Expiry of patent term |