CN203277113U - Automatic position-specified switch - Google Patents
Automatic position-specified switch Download PDFInfo
- Publication number
- CN203277113U CN203277113U CN 201320253581 CN201320253581U CN203277113U CN 203277113 U CN203277113 U CN 203277113U CN 201320253581 CN201320253581 CN 201320253581 CN 201320253581 U CN201320253581 U CN 201320253581U CN 203277113 U CN203277113 U CN 203277113U
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- Prior art keywords
- pole
- spring
- automatic spacing
- switch according
- buffer unit
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Abstract
The utility model relates to an automatic position-specified switch comprising a machine body. The machine body is provided with a metal machine head. The upper part of the machine body is provided with a first supporting rod. One end of the first supporting rod is connected with the metal machine head, and the other end of the first supporting rod is connected with one end of a second supporting rod. The other end of the second supporting rod is connected with the center of a baffle. Two ends of the baffle are provided with moving contacts. The internal part of the machine body is provided with stationary contacts corresponding to the moving contacts. The stationary contacts are fixed via screws. The automatic position-specified switch is simple in structure, convenient in operation and high in safety. Besides, the automatic position-specified switch can reset automatically in application so that the automatic position-specified switch is versatile in functions.
Description
Technical field
The utility model relates to the appliance switch setting, is specifically related to a kind of automatic spacing switch.
Background technology
Limit switch claims again travel switch, can be arranged on relatively static object or the object of motion on.During near still life, the contact of the connecting rod driving switch of switch causes closed contact disjunction or the junction closure of disconnection, removes control circuit by the change of make and break contact opening and closing state when animal.Limit switch is widely used in elevator industry, and it controls the terminal point up and down of elevator stroke in elevator hoistways, but existing limit switch is all generally manual, and is cumbersome on resetting, and is not very high on security performance.
Be 201020672167.X as application number, the applying date be 2010.12.21's " safety contact-type limit switch " a kind of limit switch is disclosed, this limit switch has solved the short circuit risk that causes due to unit failure, guarantee in case of emergency safe and reliable outage of elevator, avoid man-machine accident, and this operating head can revolve 4 * 90 °, satisfy the requirement of the multiple orientation installation of novel intelligent elevator combination form, be convenient to the dismounting adjustment, this limit switch volume is little, lightweight.But this limit switch is still hand-reset, gives in practical operation and has brought inconvenience, is not suitable for actual production application.
Be 200520069144.9 as application number, the applying date is that " elevator shaft switch " of 2005.2.4 discloses a kind of limit switch, and this limit switch structure is reasonable, dependable performance, and long service life can effectively improve elevator reliability of operation and fail safe.But this limit switch is still hand-reset, unusual trouble in operating process.
Be 200920112882.5 as application number, the applying date be 2009.1.13's " elevator limiting device " a kind of stopping means is disclosed, this limit device structure is simple, implementation cost is low, and can improve operating personnel's operating efficiency, but this stopping means is all not enough to some extent in sealing and fail safe.
The utility model content
For above-mentioned present situation to above-mentioned prior art, technical problem to be solved in the utility model is to provide a kind of energy automatically reset limit switch.
The utility model solves the problems of the technologies described above the technical scheme that adopts: a kind of automatic spacing switch, comprise body, be provided with the metal head above described body, described body upper is provided with the first pole, and this first pole one end connects described metal head, and the other end connects the second pole one end, this the second pole other end is connected with baffle plate is middle, this baffle plate two is provided with fixed contact, and this internal body is provided with the moving contact corresponding with this fixed contact, and this moving contact is fixed by the screw group.
Further, described the first pole one end is provided with external screw thread, described the second pole is provided with the internal thread corresponding with this external screw thread with the first pole junction, the first pole and the second pole are threaded connection, be threaded connection and greatly strengthened reliability and the compactness that connects, prevent from the gap occurring or relative slippage occuring between connected piece after stand under load.
Further, described the first pole is metallic struts, and metallic struts can be born the holding capacity that the metal head brings.
Further, described the second pole is plastics pole, and plastics pole has alleviated the weight of limit switch greatly, has saved cost.
Further, the outer surface cover of described the first pole has bearing, the damage that bearing can protect metallic struts not brought by the outside.
Further, described first rod bearing and the second bearing contact-making surface are provided with pad, are used for enhanced leaktightness.
Further, buffer unit is installed below described baffle plate, is provided with buffer spring in this buffer unit, this buffer spring one end connects baffle plate, the other end connects bottom buffer unit, and this buffer unit can slow down the impact that pole is brought, and improves the security performance of automatic spacing switch.
Further, described buffer spring and junction, buffer unit bottom are provided with spring fitting device, this spring fitting device upper end connection buffer spring, the other end is welded in bottom buffer unit, this spring fitting device can block buffer spring, prevents that buffer spring from coming off thereupon the utilization of buffer unit.
Further, described buffer unit is connected with organism bottom by spring, and this spring plays an automatically reset effect.
Further, be provided with rubber case outside described metal head, this rubber case can guarantee that the metal head is not damaged, and can prevent that also seepage from advancing in body, thereby guarantees that body keeps dry in the process of operation, is not easy corrosion and damage.
Compared with prior art, the utility model has the advantage of: two poles of the present utility model are threaded connection, and have greatly strengthened the reliability and the compactness that connect, prevent from the gap occurring or relative slippage occuring between connected piece after stand under load; Be provided with bearing, the damage that can protect pole not brought by the outside outside the first pole; And first rod bearing and the second bearing contact-making surface be provided with pad, is used for enhanced leaktightness; Moreover the buffer unit below baffle plate can slow down the impact that pole is brought, the security performance of raising automatic spacing switch greatly; Secondly the spring fitting device of junction, buffer spring and buffer unit bottom can prevent further that spring from coming off; Also be provided with spring below the final buffer device, this spring plays an automatically reset effect, facilitates the operation of user's reality; The utility model is simple in structure, and is easy to operate, and security performance is high, can also automatically reset in actual applications, powerful.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the enlarged drawing of buffer unit.
Fig. 3 is the enlarged drawing of fixed contact and moving contact.
On figure, numeral is as follows:
1-metal head, 2-body, 11-rubber case, 21-the first pole, 22-external screw thread, 23-pad, 24-the second pole, 25-fixed contact, 26-moving contact, 27-baffle plate, 28-spring fitting device, 29-buffer spring, 30-spring, 31-screw, 32-bearing.
Embodiment
Below in conjunction with accompanying drawing, embodiment, the utility model is described in further detail.
Embodiment 1
as shown in Figure 1, a kind of automatic spacing switch, comprise body 2, be provided with metal head 1 above described body 2, described body 2 tops are provided with the first pole 21, these the first pole 21 1 ends connect described metal head 1, the other end connects the second pole 24 1 ends, these the second pole 24 other ends are connected with baffle plate 27 is middle, this baffle plate 27 two are provided with moving contact 26, this body 2 inside are provided with the fixed contact corresponding with this moving contact 26 25, this fixed contact 25 is fixing by screw 31, the first pole 21 outsides are provided with bearing 32, this bearing 32 can be protected the first pole 21, improve security performance, described the first pole 21 1 ends are provided with external screw thread 22,
The second corresponding pole 24 is provided with the internal thread corresponding with the first pole 21 external screw threads 22, is threaded connection greatly to have strengthened reliability and the compactness that connects, and prevents from the gap occurring or relative slippage occuring between connected piece after stand under load; Described the first pole 21 is metallic struts, and metallic struts can be born the impulsive force that the metal head brings; Described the second pole 24 is plastics pole, plastics pole can alleviate the weight of limit switch greatly, can save cost, also be provided with pad 23 between the first pole 21 and the second pole 24, pad 23 is used for the sealing of stiffening device, also is provided with rubber case 11 on metal head 1, this rubber case 11 can guarantee that the metal head is not damaged, can prevent that also seepage from advancing in body, thereby guarantee that body keeps dry, and is not easy corrosion and damage in the process of operation.
Be provided with spring bumper below this baffle plate, as shown in Figure 2, be provided with buffer spring 29 in this spring bumper, these buffer spring 29 1 ends connect baffle plate 27, other end linking springs fixture 28, this spring fitting device 28 can block buffer spring 29, and the other end is welded in bottom buffer unit, this spring bumper plays a cushioning effect, the fail safe when guaranteeing operation; Also be provided with spring 30 below spring bumper, this spring 30 plays an automatically reset effect.
When pinning metal head 1, metal head 1 can drive the first pole 21 depress, the first pole 21 also can drive the second pole 22 and move, final the second pole 22 promotes baffle plate 27 and moves, the moving contact 26 that causes being arranged on baffle plate 27 places separates with fixed contact 25, thereby plays position-limiting action, when unclamping metal head 1, the elasticity force of spring 30 can allow moving contact 27 again contact with fixed contact 26, the state before returning to.
Owing to having adopted above technical scheme, this embodiment has following beneficial effect: two poles of utility model are threaded connection, greatly strengthened the reliability and the compactness that connect, prevented from the gap occurring or relative slippage occuring between connected piece after stand under load; Be provided with bearing, the damage that can protect pole not brought by the outside outside the first pole; And first rod bearing and the second bearing contact-making surface be provided with pad, is used for enhanced leaktightness; Moreover the buffer unit below baffle plate can slow down the impact that pole is brought, the security performance of raising automatic spacing switch greatly; Secondly the spring fitting device of junction, buffer spring and buffer unit bottom can prevent further that spring from coming off; Also be provided with spring below the final buffer device, this spring plays an automatically reset effect, facilitates the operation of user's reality; The utility model is simple in structure, and is easy to operate, and security performance is high, can also automatically reset in actual applications, powerful.
It should be noted that at last: above embodiment only in order to the technical solution of the utility model to be described, is not intended to limit; Although with reference to previous embodiment, the utility model is had been described in detail, it will be understood by those of skill in the art that it still can modify to the technical scheme that aforementioned each embodiment puts down in writing, perhaps part technical characterictic is wherein replaced on an equal basis; And these modifications or replacement do not make the essence of appropriate technical solution break away from spirit and the scope of each embodiment technical scheme of the utility model.
Claims (10)
1. automatic spacing switch, comprise body (2), it is characterized in that, be provided with metal head (1) above described body (2), described body (2) top is provided with the first pole (21), these the first pole (21) one ends connect described metal head (1), the other end connects the second pole (24) one ends, this the second pole (24) other end is connected with baffle plate (27) is middle, this baffle plate (27) two is provided with moving contact (26), this body (2) inside is provided with the fixed contact (25) corresponding with this moving contact (26), this fixed contact (25) is fixing by screw (31).
2. a kind of automatic spacing switch according to claim 1, it is characterized in that, described the first pole (21) one ends are provided with external screw thread (22), described the second pole (24) is provided with the internal thread corresponding with this external screw thread (22) with the first pole (21) junction, and the first pole (21) is threaded connection with the second pole (24).
3. a kind of automatic spacing switch according to claim 1, is characterized in that, described the first pole (21) is metallic struts.
4. a kind of automatic spacing switch according to claim 1, is characterized in that, described the second pole (24) is plastics pole.
5. according to claim 1 or 3 described a kind of automatic spacing switches, is characterized in that, the outer surface cover of described the first pole (21) has bearing (31).
6. a kind of automatic spacing switch according to claim 5, is characterized in that, described bearing (31) is provided with pad (23) with the second pole (24) contact-making surface.
7. a kind of automatic spacing switch according to claim 1, it is characterized in that, described baffle plate is equipped with buffer unit below (27), be provided with buffer spring (29) in this buffer unit, these buffer spring (29) one ends connect baffle plate (27), and the other end connects bottom buffer unit.
8. a kind of automatic spacing switch according to claim 7, it is characterized in that, described buffer spring (29) is provided with spring fitting device (28) with junction, buffer unit bottom, this spring fitting device (28) one connects buffer spring (29), and the other end is welded in bottom buffer unit.
9. a kind of automatic spacing switch according to claim 7, is characterized in that, described buffer unit is connected with organism bottom by spring (30).
10. a kind of automatic spacing switch according to claim 1, is characterized in that, is provided with rubber case (11) outside described metal head (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320253581 CN203277113U (en) | 2013-05-09 | 2013-05-09 | Automatic position-specified switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320253581 CN203277113U (en) | 2013-05-09 | 2013-05-09 | Automatic position-specified switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203277113U true CN203277113U (en) | 2013-11-06 |
Family
ID=49507470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320253581 Expired - Fee Related CN203277113U (en) | 2013-05-09 | 2013-05-09 | Automatic position-specified switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203277113U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104409233A (en) * | 2014-11-27 | 2015-03-11 | 上海华晟电器有限公司 | Travel switch related to elevator application |
| CN105489409A (en) * | 2016-01-14 | 2016-04-13 | 上海华晟电器有限公司 | Novel elevator limit switch device |
| WO2018035969A1 (en) * | 2016-08-23 | 2018-03-01 | 蔡旭强 | Electromagnetic automatic-reset limit switch |
-
2013
- 2013-05-09 CN CN 201320253581 patent/CN203277113U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104409233A (en) * | 2014-11-27 | 2015-03-11 | 上海华晟电器有限公司 | Travel switch related to elevator application |
| CN105489409A (en) * | 2016-01-14 | 2016-04-13 | 上海华晟电器有限公司 | Novel elevator limit switch device |
| CN105489409B (en) * | 2016-01-14 | 2018-10-12 | 上海华晟电器有限公司 | A kind of novel elevator-distance switch device |
| WO2018035969A1 (en) * | 2016-08-23 | 2018-03-01 | 蔡旭强 | Electromagnetic automatic-reset 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: 20131106 Termination date: 20170509 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |