CN204375589U - A kind of locking chain monitoring switch - Google Patents
A kind of locking chain monitoring switch Download PDFInfo
- Publication number
- CN204375589U CN204375589U CN201520105542.5U CN201520105542U CN204375589U CN 204375589 U CN204375589 U CN 204375589U CN 201520105542 U CN201520105542 U CN 201520105542U CN 204375589 U CN204375589 U CN 204375589U
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- post
- central siphon
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- switch
- spring
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Abstract
The utility model provides a kind of locking chain monitoring switch, comprise sensitive switch and be connected to the press device of push button shaft core of sensitive switch, described press device comprises handle, central siphon and button connect block, described handle is connected with central siphon by jack-post, described button connects block and connects central siphon and sensitive switch by spring mechanism, described handle is provided with the wear-resisting insert with larger hardness, this locking chain monitoring switch, by inlaying wear-resisting insert in handle, improve the resistance to wear of handle, thus increase the service life, inside establish spring, structure is simple, precision is high, effective monitoring prevents chain-loose.
Description
Technical field
The utility model relates to a kind of monitoring switch, particularly a kind of locking chain monitoring switch.
Background technology
Chain is the main building block of chain-drive mechanism, chain-drive mechanism requires the elasticity running that chain keeps certain, and for some high-altitude transmission mechanisms, there is great potential safety hazard especially in the degree of tightness of chain particularly breakage problem, therefore locking chain monitoring switch need be set, the chain compressing shift knob tightened, switch is made to be in transition status, when chain-loose or fracture, shift knob discharges, switch transition is returned to initial condition, thus the signal of chain-loose or fracture is sent to apparatus control system, the safe condition of real-time monitoring chain, but current locking chain monitoring switch handle is all made of plastics, when rubbing for a long time with chain, handle is easily worn, therefore need often to change locking chain monitoring switch, cost higher and management trouble, easy careless omission, and also had influence on after locking chain monitoring switch is worn itself and chain in conjunction with pressure, thus cause the problems such as fault misdescription.
Utility model content
In view of this, the technical problems to be solved in the utility model is to provide a kind of wear-resistant, locking chain monitoring switch that precision is high.
For solving the problems of the technologies described above, the technical scheme that the utility model provides is: a kind of locking chain monitoring switch, comprise sensitive switch and be connected to the press device of push button shaft core of sensitive switch, described press device comprises handle, central siphon and button and connects block, described handle is connected with central siphon by jack-post, described button connects block and connects central siphon and sensitive switch by spring mechanism, described handle is provided with the wear-resisting insert with larger hardness.
Wear-resisting insert can be the wear-resisting inserts such as wear-resisting insert, ceramic insert or nylon insert.
Described spring mechanism comprises one end and is connected to that button connects block upper end, the other end connects the upper spring of jack-post and one end is connected to the lower spring of the push button shaft core that button connects block lower end, the other end is connected to sensitive switch.
Described button connects block and comprises body, and the upper joint pin that the diameter of body upper end and upper spring match, and the lower joint pin that the diameter of body lower end and lower spring match, is also provided with the groove mutually embedding with the push button shaft core of sensitive switch bottom described lower joint pin.
Described upper spring, button connect block and lower spring is all arranged on central siphon inside.
The upper end of described jack-post is connected with handle by pin, and described jack-post is connected in central siphon slidably, and described central siphon sidewall is provided with hitching post, described jack-post is provided with accommodating hitching post and limit jack-post rotate chute.
Described jack-post bottom is provided with limit convex edge, is provided with upper cavity and internal diameter and limit convex that internal diameter and jack-post upper end match along the lower chamber matched in described central siphon.
Buckle or riveted structure is provided with sensitive switch joint bottom described central siphon.
Compared with prior art, the utility model tool has the following advantages:
The utility model provides a kind of locking chain monitoring switch, and by inlaying wear-resisting insert in handle, improve the resistance to wear of handle, thus increase the service life, inside establish spring, structure is simple, precision is high, and effectively monitoring prevents chain-loose.
Accompanying drawing explanation
Fig. 1 is the utility model locking chain monitoring switch structural blast figure.
Fig. 2 is the utility model locking chain monitoring switch structural representation.
Fig. 3 is the utility model locking chain monitoring switch partial sectional view.
Fig. 4 is that the utility model button connects block structure schematic diagram.
Fig. 5 is that the utility model button connects block structure cutaway view.
Embodiment
The utility model to be explained in further detail below in conjunction with accompanying drawing and embodiment for the ease of it will be appreciated by those skilled in the art that.
As shown in Figure 1, 2, 3, a kind of locking chain monitoring switch, for the locking monitoring of driving chain, comprise the sensitive switch 1 and press device 2 that are connected, press press device 2 by driving chain, press device 2 presses sensitive switch, thus detects the elasticity of driving chain by the sensitive switch 1 that is turned on or off, report the loosening situation of driving chain with Timeliness coverage, avoid potential safety hazard.
The push button shaft core 11 that the present embodiment sensitive switch 1 used comprises shell 17 and is arranged on shell 17, described push button shaft core 11 presses one end of the switch shrapnel 19 of sensitive switch 1 inside, the top of the other end of switch shrapnel 19 is provided with upper contact a, below is provided with lower contact b, this sensitive switch 1 also comprises other electric connecting part, and this sensitive switch 1 also can adopt any one sensitive switch existing.
Wherein press device 2 comprises the handle 21, jack-post 24 and the central siphon 22 that arrange from top to bottom, also comprises being arranged at spring mechanism in central siphon 22 and button connects block 23.
Described handle 21 has been embedded in wear-resisting insert 25, the present embodiment adopts metal insert, in the process that long-term and driving chain rub, handle 21 is under the effect of wear-resisting insert 25, improve hardness, thus ensure that the accuracy of locking chain monitoring switch, and avoid and often to need to change the large problem of the cost that brings because of wearing and tearing.
Described handle 21 is connected by pin 12 with jack-post 24, described jack-post 24 side is provided with a chute 14, and be connected to chute 14 place by hitching post 13 and central siphon 22, jack-post 24 can be slided up and down in central siphon 22, limit jack-post to rotate simultaneously, described jack-post 24 lower end is also provided with limit convex along 15, accordingly, central siphon 22 inside is divided into two parts cavity, top is divided into the upper cavity 221 that internal diameter is identical with jack-post 24 upper end diameter, bottom is divided into the limit convex of internal diameter and jack-post 24 lower end along the identical lower chamber 222 of 15 diameters, therefore the scope of activities of jack-post 24 in central siphon 22 is subject to the restriction along 15 of upper cavity 221 and limit convex, thus enhance the stability of device, the lower end of described central siphon 22 is also provided with the buckle structure 16 with the push button shaft core 11 periphery snap-fit of sensitive switch 1,
Described spring mechanism comprises upper spring 26 and lower spring 27; described upper spring 26 is arranged at bottom jack-post 24 and button connects between block 23; described lower spring 27 is arranged at button and connects between block 23 and push button shaft core 11; it is inner that upper spring 26 and lower spring 27 are all arranged on central siphon 22; available protecting upper spring 26 and lower spring 27, make its life-span longer.
As shown in Figure 4,5, described button connects block 23 and comprises body 231, the body 231 upper end upper joint pin 232 that to be diameter want with upper spring 26 internal diameter mates, body 231 lower end is the lower joint pin 233 that diameter and lower spring 27 internal diameter match, and the bottom of lower joint pin 233 is also provided with the groove 224 that be connected mutually embedding with the push button shaft core 11 of sensitive switch 1.
Described lower spring 27 is shorter, and under device impaction state, button connects block 23 and can contact and compress push button shaft core 11, and under the effect of lower spring 27, compaction degree change is sensitiveer, makes the measure of precision of device higher and the useful life of deferred mount.
During use, by the handle 21 of locking chain monitoring switch near tested driving chain, tested driving chain presses handle 21, thus jack-post 24 presses down upper spring 26, upper spring 26 connects block 23 times dead springs 27 by button, push button axle core 11 while that lower spring 27 being stressed, one end of push button shaft core 11 pressure switches shell fragment 19, the other end of switch shrapnel 19 is descending touches lower contact b, and now conducting lower contact b circuit, enters monitoring pattern;
After sensitive switch 1 changes, tested driving chain continuation is descending presses handle 21, button connects while block 23 times dead springs 27 keep sensitive switch 1 to be in transition status, its button connects block 23 lower surface meeting contact-making switch housing 17, button 21 acts in switch case 17 by the downforce that spring 26 produces, thus avoid being pressed onto switch shrapnel 19 by axle core 11, thus the transition status of sensitive switch 1 is made not to be subject to the impact of chain vibration or fluctuation.
When driving chain occurs to loosen or rupture, driving chain reduces the pressure of handle 21, thus the pressure of whole locking chain monitoring switch reduces all successively, this pressure little to a certain extent time, then make spring-go position on push button shaft core 11, switch shrapnel 19 leaves lower contact b under the effect of its own resilient, contact upper contact a, now upper contact a circuit turn-on, the information that loosened by driving chain is uploaded mster-control centre and is sounded the alarm or bright warning lamp.
Be more than wherein specific implementation of the present utility model, it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these apparent replacement forms all belong to protection range of the present utility model.
Claims (7)
1. a locking chain monitoring switch, comprise sensitive switch (1) and be connected to the press device (2) of push button shaft core (11) of sensitive switch (1), it is characterized in that: described press device (2) comprises handle (21), central siphon (22) and button and connects block (23), described handle (21) is connected with central siphon (22) by jack-post (24), described button connects block (23) and connects central siphon (22) and sensitive switch (1) by spring mechanism, described handle (21) is provided with the wear-resisting insert (25) with larger hardness.
2. the locking chain monitoring switch of one according to claim 1, is characterized in that: described spring mechanism comprises one end and is connected to button connects block (23) upper end, the other end connects jack-post (24) upper spring (26) and one end is connected to the lower spring (27) of the push button shaft core (11) that button connects block (23) lower end, the other end is connected to sensitive switch (1).
3. the locking chain monitoring switch of one according to claim 2, it is characterized in that: described button connects block (23) and comprises body (231), and the upper joint pin (232) that the diameter of body (231) upper end and upper spring (26) match, the lower joint pin (233) that the diameter of body (231) lower end and lower spring (27) match, described lower joint pin (233) bottom is also provided with the groove (234) mutually embedding with the push button shaft core (11) of sensitive switch (1).
4. the locking chain monitoring switch of one according to claim 3, is characterized in that: described upper spring (26), button connect block (23) and lower spring (27) is all arranged on central siphon (22) inside.
5. the locking chain monitoring switch of one according to claim 1, it is characterized in that: the upper end of described jack-post (24) is connected with handle (21) by pin (12), described jack-post (24) is connected in central siphon (22) slidably, described central siphon (22) sidewall is provided with hitching post (13), described jack-post (24) is provided with accommodating hitching post (13) and limits the chute (14) that jack-post (24) rotates.
6. the locking chain monitoring switch of one according to claim 5, it is characterized in that: described jack-post (24) bottom is provided with limit convex along (15), in described central siphon (22), be provided with upper cavity (221) and internal diameter that internal diameter and jack-post (24) upper end match and the lower chamber (222) that limit convex edge (15) matches.
7. the locking chain monitoring switch of one according to claim 1, is characterized in that: described central siphon (22) bottom is provided with buckle or riveted structure (16) with sensitive switch (1) joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520105542.5U CN204375589U (en) | 2015-02-13 | 2015-02-13 | A kind of locking chain monitoring switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520105542.5U CN204375589U (en) | 2015-02-13 | 2015-02-13 | A kind of locking chain monitoring switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204375589U true CN204375589U (en) | 2015-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520105542.5U Active CN204375589U (en) | 2015-02-13 | 2015-02-13 | A kind of locking chain monitoring switch |
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| Country | Link |
|---|---|
| CN (1) | CN204375589U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229173A (en) * | 2016-08-30 | 2016-12-14 | 创景传感工业(惠州)有限公司 | A kind of door puts in place and detects switch |
-
2015
- 2015-02-13 CN CN201520105542.5U patent/CN204375589U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229173A (en) * | 2016-08-30 | 2016-12-14 | 创景传感工业(惠州)有限公司 | A kind of door puts in place and detects switch |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |