A kind of sensitive switch
Technical field
The utility model is a kind of sensitive switch, in particular for the Double Tops bar location structure of the control sensitive switch of the anti-dual fail-safe of toppling in the electrical equipment, belongs to the renovation technique of sensitive switch.
Background technology
Be equipped with anti-structure of toppling in existing most of electrical equipment, wherein mostly adopt the push rod location structure, when machine is toppled over, the push rod location structure of sensitive switch will be controlled sensitive switch, produce outage.When electrical equipment was normally holded up, the push rod location structure of sensitive switch can be controlled sensitive switch again and start, thereby makes the electrical equipment operate as normal.But the shortcoming that existing these structures exist is to heat or dangerous situation generation and when occurring toppling over when electrical equipment, push rod starts electrical equipment because of accident is stressed situation can appear, so that cause easily electrical equipment is produced damage, even may produce certain danger.
The utility model content
The purpose of this utility model is to consider the problems referred to above and provides a kind of when the electrical equipment run-off the straight, guarantees that sensitive switch quits work, thereby plays anti-sensitive switch of toppling over effect.The utility model is simple in structure, cost is low, and the safe in utilization of electrical equipment guaranteed in stable performance.
The technical solution of the utility model is: sensitive switch of the present utility model, include support, sensitive switch, push switch, wherein sensitive switch is fixed in a side of support, push switch is fixed in the opposite side of support, and the below of push switch is provided with positioning mandril mechanism, wherein push switch comprises by pressing spring and is provided with the push rod of pushing of detent, wherein pushing top stem casing is contained on the slideway that support is provided with, and when pushing push rod and on slideway, moving, an end of pushing push rod can contact with the contact that sensitive switch is provided with, push spring housing and be contained in the outside of pushing push rod, positioning mandril mechanism comprises positioning mandril, top stem casing, the location inner spring, the location outer spring, stopper, wherein top stem casing is installed in support, positioning mandril is set in the set hollow cavity of top stem casing by the open end of top stem casing, and when an end of pushing push rod when contact that sensitive switch is provided with contacts, positioning mandril can protrude upward the set hollow cavity of top stem casing and push the set detent of push rod roof pressure mutually by the through hole that the top stem casing upper end is provided with, the open end of top stem casing is provided with stopper, the location inner spring is installed between the lower end and stopper of positioning mandril, the outside of top stem casing also is set with the location outer spring, one end of location outer spring and an end of support touch, and the other end of location outer spring touches with the location edge that is arranged on the top stem casing outside.
Above-mentioned top stem casing is sleeved in the set sleeve of support.
The end of the sleeve that above-mentioned support is set is equiped with lid.
Above-mentioned location edge and the top stem casing one that is arranged on the top stem casing outside made.
Above-mentioned downward displacement stroke of pushing the degree of depth of the detent that push rod is provided with less than top stem casing.
Above-mentioned end of pushing push rod also is provided with top cover, touches by an end and the top cover of pressing spring, and the end of the slideway that is provided with by the other end and the support of pressing spring touches.
The utility model is owing to adopt the structure of controlling the Push And Release of sensitive switch by the cooperation of pushing push rod and positioning mandril, have only when sensitive switch is in erected state, and when push switch is in pressed state, can touch the contact of sensitive switch, make sensitive switch work, and when the electrical equipment run-off the straight, positioning mandril ejects and moves downward, the pushing push rod and will eject of push switch, make sensitive switch quit work, thereby play anti-effect of toppling over, and after electrical equipment is toppled over, be in again when holding up situation, sensitive switch is idle, can only work as push switch and when pressed state, could allow sensitive switch task again, play the effect of dual fail-safe, the utility model sensitive switch is applied to will make in the electrical equipment use of electrical equipment safer, reliably, the utility model is a kind of reasonable in design, sensitive switch simple in structure, convenient and practical.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the three-dimensional structure diagram of utility model.
Embodiment
Embodiment:
Structural representation of the present utility model such as Fig. 1, shown in 2, sensitive switch of the present utility model, include support 1, sensitive switch 2, push switch, wherein sensitive switch 2 is fixed in a side of support 1, push switch is fixed in the opposite side of support 1, and the below of push switch is provided with positioning mandril mechanism, wherein push switch comprise by pressing spring 4 and be provided with detent 31 push push rod 3, wherein pushing push rod 3 is sleeved on the slideway 11 that support 1 is provided with, and when pushing push rod 3 and on slideway 11, moving, an end of pushing push rod 3 can contact with the contact 21 that sensitive switch 2 is provided with, be sleeved on the outside of pushing push rod 3 by pressing spring 4, positioning mandril mechanism comprises positioning mandril 6, top stem casing 5, location inner spring 8, location outer spring 9, stopper 7, wherein top stem casing 5 is installed in support 1, the open end 51 of positioning mandril 6 by top stem casing 5 is set in the set hollow cavity 52 of top stem casing 5, and when the contact 21 that an end of pushing push rod 3 and sensitive switch 2 are provided with contacts, positioning mandril 6 can protrude upward the set hollow cavity 52 of top stem casing 5 by the through hole 53 that top stem casing 5 upper ends are provided with and push push rod 3 set detents 31 roof pressure mutually, the open end 51 of top stem casing 5 is provided with stopper 7, location inner spring 8 is installed between the lower end and stopper 7 of positioning mandril 6, the outside of top stem casing 5 also is set with location outer spring 9, one end of location outer spring 9 and an end of support 1 touch, and the other end of location outer spring 9 touches with the location edge 54 that is arranged on top stem casing 5 outsides.
For ease of installing, above-mentioned top stem casing 5 is sleeved in the set sleeve 12 of support 1.In addition, the end of the set sleeve 12 of above-mentioned support 1 is equiped with lid 10.
In the present embodiment, the above-mentioned location edge 54 that is arranged on top stem casing 5 outsides is made with top stem casing 5 one.
In the present embodiment, above-mentioned downward displacement stroke of pushing the degree of depth of the detent 31 that push rod 3 is provided with less than top stem casing 5.
For ease of installing, above-mentioned end of pushing push rod 3 also is provided with top cover 32, touches by an end and the top cover 32 of pressing spring 4, and the end of the slideway 11 that is provided with by the other end and the support 1 of pressing spring 4 touches.In the present embodiment,
Operation principle of the present utility model is as follows: when being in vertical state, top stem casing 5 bottommosts are subjected to the strength on a top, make top stem casing 5 move up, location outer spring 9 is in compressive state, and top stem casing 5 tops also can be subjected to the obstruction of support 1 and can not extend upward always; Positioning mandril 6 can move upward by the passage 51 that bar overlaps on 5, when push switch is in not pressed state, described groove 31 be not in passage 51 directly over, thereby the upper end of positioning mandril 6 top passes passage 51 and upwards withstood and push push rod 3 and can not move upward, and location inner spring 8 then is in compressive state.When push switch is in pressed state, pushing push rod 3 moves right, be in compressive state by pressing spring 4, when pushing push rod 3 and contact with contact 21, groove 31 just be in passage 51 directly over, the resilience force that positioning mandril 6 is located inner spring 8 continues to move upward, with groove 31 buckle mutually, thereby make positioning mandril 6 and push push rod 3 mutual buckles and reach fixing, sensitive switch 2 is in "on" position.
When sensitive switch of the present utility model is toppled over, top stem casing 5 bottoms will lose support, top stem casing 5 moves away from the push switch direction under the effect of compressed location outer spring 9 resilience forces, when pushing up to lid 10, location edge 54 stops, and positioning mandril 6 is also followed top stem casing 5 and disengaging groove 31, push push rod 3 and move right away from contact 21, thereby make sensitive switch 2 be in off-position in the resilience force effect of the spring 4 that is pressed.And sensitive switch is when being in vertical state once more, top stem casing 5 bottoms are subjected to a top power again, make top stem casing 5 and positioning mandril 6 all move up, but when not pushing push switch, push rod 3 contacts that are not pressed as yet of the contact 21 of sensitive switch 2, thereby sensitive switch 2 still is in off-position, and when push switch is in pressed state, pushes push rod 3 and move right to the contact 21, positioning mandril 6 and groove 31 be buckle mutually, make sensitive switch 2 be in "on" position, so circulation.