CN202650869U

CN202650869U - Foot switch

Info

Publication number: CN202650869U
Application number: CN 201220277972
Authority: CN
Inventors: 尹志浩; 任晓英; 郑奕峰
Original assignee: Shengzhou electric power Co
Current assignee: Shengzhou electric power Co; State Grid Corp of China SGCC; Zhejiang Electric Power Co; Shaoxing Electric Power Bureau
Priority date: 2012-06-01
Filing date: 2012-06-01
Publication date: 2013-01-02
Anticipated expiration: 2022-06-01

Abstract

The utility model discloses a foot switch, belonging to the technical field of control switches. The foot switch includes an upper cover, a base, a pressure spring, and a microswitch equipped with a contact. The upper cover covers the base and is in a buckled connection with the base, a guide groove is formed in the center of the base, the base is provided with a receiving groove arranged at one side of the guide groove and communicated with the guide groove, the microswitch is fixed in the receiving groove, the pressure spring is arranged in the guide groove, and the bottom end of the pressure spring is contacted with the bottom of the guide groove and a pressure buckle is covered at the top end of the pressure spring, the pressure buckle abuts against the inner wall of the upper cover, the pressure buckle is provided with an outer circular wall and an outer chamfering arranged at the bottom edge of the pressure buckle, the outer chamfering of the pressure buckle is contacted with the contact of the microswitch, the pressure buckle moves downwards along the guide groove, and the outer circular wall is in the state of contacting with the contact. The foot switch provided is simple in structure, the pressure buckle has two working positions for switching the circuit while performing up and down movement, the foot switch provided can be used for two purposes, and the production and assembling efficiency can be improved.

Description

Foot switch

[technical field]

The utility model relates to a kind of foot switch, belongs to the control switch technical field.

[background technology]

Foot switch is a kind of switch of trampling to carry out the function circuit break-make by foot, is widely used.When the cable of foot switch with after control circuit links to each other, but by the connection of trampling control circuit and the disjunction of foot, reach the purpose of liberation staff.

Common foot switch comprises loam cake, cover plate, lower cover, axis, travel switch and push rod, cover plate is between loam cake and lower cover, in be buckled in the lower cover, loam cake covers cover plate and is connected with lower cover latch, bottom central authorities are provided with axis spring-loaded post, axis spring-loaded column sleeve has the axis back-moving spring, axis passes cover plate from the bottom to top, its hypomere partly is covered with the axis back-moving spring, its epimere that passes cover plate partly is set with the loam cake back-moving spring between cover plate and loam cake, push rod and travel switch are installed in the lower cover of axis one side, and cover has the push rod back-moving spring on the push rod.It is outwards mobile that foot switch promotes push rod by moving downward of axis, push rod is conflicted and is controlled travel switch, make the travel switch conducting, and connect control circuit, but make tooth-cleaning machine be in the state of execution work, when foot cancels the active force that puts on loam cake, the loam cake back-moving spring is loam cake jack-up, and the axis back-moving spring is the axis jack-up that makes progress then, and the push rod back-moving spring backs down push rod simultaneously, travel switch disconnects, and all parts restore to the original state.In a word, foot switch can reach the purpose of control switching circuit on-off circuit, and so this existing foot switch is owing to the structure reason, and Assembling Production efficient is not high.

[utility model content]

The deficiency that the utility model exists for above-mentioned prior art and a kind of efficiently foot switch simple in structure, easy to assembly is provided.

For solving the problems of the technologies described above, the utility model provides following technical scheme:

Foot switch, comprise loam cake, base, stage clip and with the sensitive switch of contact, upper housing is established base and is spun with base, it is characterized in that: the central gathering sill that forms of described base, base also is formed with the storage tank that is positioned at gathering sill one side and communicates with gathering sill, described sensitive switch is fixed in the storage tank, stage clip places gathering sill, and touch mutually with the bottom of gathering sill its bottom, its top then is covered with clinching, the end face of clinching and the inwall of loam cake are conflicted, the outer chamfering on edge at the bottom of clinching has external annulus and is positioned at clinching, the outer chamfering of clinching is touched mutually with the contact of sensitive switch, and clinching moves down along gathering sill when stage clip compresses, and the external annulus of clinching is in the state that presses contact.

Inwall axially is formed with guide pin bushing on the top of above-mentioned clinching, is provided with center pillar in the above-mentioned gathering sill, and above-mentioned stage clip empty set is in the center pillar periphery, and the top of center pillar extends in the guide pin bushing; Be provided with two alignment pins in the above-mentioned storage tank, described alignment pin is inserted in the location hole that sensitive switch offers.

Because the surface area of clinching is larger, the power that loam cake is trampled by foot is sometimes steady not, cause the clinching campaign unstable, after guide pin bushing is set in clinching, in gathering sill, center pillar is set, improved the precision and stability of clinching guiding movement, the foot switch switching controls is sensitive, prevents the generation of misoperation, and after sensitive switch accurately is positioned storage tank, can further promote the foot switch control precision.

Compare with the foot switch of existing structure, the utlity model has following beneficial effect:

Inter panel and push rod have been cancelled, correspondingly reduced number of springs, gathering sill directly is set in base, stage clip places gathering sill, and the top of stage clip is covered with clinching, has two active positions of conflicting with sensitive switch when clinching moves up and down, one thing dual-purpose, the utility model number of spare parts is simplified, and is simple in structure, produces efficiency of assembling and obtained improving energetically.

[description of drawings]

Fig. 1 is the structure cutaway view of the utility model foot switch;

Fig. 2 is explosive decomposition figure of the present utility model.

[embodiment]

Be described in further detail with regard to the utility model below in conjunction with accompanying drawing and concrete preferred embodiment.

See also Fig. 1, shown in 2, foot switch, comprise loam cake 1, base 5, stage clip 3 and with the sensitive switch 4 of contact 41, loam cake 1 covers base 5 and spins (certainly in the specific implementation with base 5, both can also buckle connect), 5 central authorities form gathering sill 51 at base, base 5 also is formed with the storage tank 53 that is positioned at gathering sill 51 1 sides and communicates with gathering sill 51, be provided with two alignment pins 54 in this storage tank 53, sensitive switch 4 is corresponding to offer two location holes 42, sensitive switch 4 is loaded in the storage tank 53 and is fixed, stage clip 3 places gathering sill 51, the free height of stage clip 3 is higher than the degree of depth of gathering sill 51, touch mutually with the bottom of gathering sill 51 bottom of stage clip 3, its top then is covered with clinching 2, clinching 2 is facing to the contact 41 of sensitive switch, and the internal diameter of the external diameter of clinching 2 and gathering sill 51 is suitable, the inwall of clinching 2 end faces and loam cake 1 is conflicted, clinching 2 has external annulus 21 and is positioned at the outer chamfering 22 on edge, 2 end of clinching, the outer chamfering 22 of clinching 2 is touched mutually with the contact 41 of sensitive switch 4, clinching 2 moves down along gathering sill 51 when stage clip 3 compression, and 21 of the external annulus of clinching 2 press contact 41.

Wherein, axially be formed with a guide pin bushing 23 at the top of clinching 2 inwall, the gathering sill 51 interior corresponding center pillars 52 that are provided with, center pillar 52 axial lengths are greater than the axial length of guide pin bushing 23, stage clip 3 be empty set in center pillar 52 peripheries, the top of center pillar 52 extends in the guide pin bushing 23.

During use, cable with foot switch links to each other with control circuit (not shown) first, the human foot base plate is pushed down the loam cake 1 of foot switch, apply a downward active force for loam cake 1, this moment, stage clip 3 was compressed, loam cake 1 promotes clinching 2 and moves down, the contact 41 of sensitive switch 4 is transitted to the external annulus 22 corresponding point of contacts of clinching 2 by outer chamfering 22 conflicts original and clinching 2 and touches mutually, because the external diameter of the external annulus 22 of clinching 2 is greater than the external diameter of the outer chamfered part of clinching 2, therefore the contact 41 of sensitive switch 4 is formed conducting by pushing tow, and connects control circuit; When foot cancels the active force that puts on loam cake 1, stage clip 3 pushing tow loam cakes, 1 inwall and with loam cake 1 jack-up, clinching 2 is risen thereupon, until stage clip 3 resets, at this moment, clinching 2 is conflicted by the contact 41 of external annulus 21 corresponding point of contacts and sensitive switch 4 and is changed clinching 2 outer chamferings 22 into and contact with the contact 41 of sensitive switch 4, shows that clinching 2, loam cake 1 also reset simultaneously, 4 disconnections of sensitive switch, all parts restore to the original state.

The above; it only is preferred embodiment of the present utility model; be not to be the restriction of the utility model being made other form; any those skilled in the art should learn the structural change of making under enlightenment of the present utility model; every with the utlity model has identical or close technical scheme, all still belong within the protection range of the present utility model.

Claims

1. foot switch, comprise loam cake, base, stage clip and with the sensitive switch of contact, upper housing is established base and is spun with base, it is characterized in that: the central gathering sill that forms of described base, base also is formed with the storage tank that is positioned at gathering sill one side and communicates with gathering sill, described sensitive switch is fixed in the storage tank, stage clip places gathering sill, and touch mutually with the bottom of gathering sill its bottom, its top then is covered with clinching, the end face of clinching and the inwall of loam cake are conflicted, the outer chamfering on edge at the bottom of clinching has external annulus and is positioned at clinching, the outer chamfering of clinching is touched mutually with the contact of sensitive switch, and clinching moves down along gathering sill when stage clip compresses, and the external annulus of clinching is in the state that presses contact.

2. foot switch according to claim 1, it is characterized in that: inwall axially is formed with guide pin bushing on the top of described clinching, is provided with center pillar in the described gathering sill, and described stage clip empty set is in the center pillar periphery, and the top of center pillar extends in the guide pin bushing; Be provided with two alignment pins in the described storage tank, described alignment pin is inserted in the location hole that sensitive switch offers.