CN102737869A

CN102737869A - Stroke switch with remote control reset function

Info

Publication number: CN102737869A
Application number: CN2012102240918A
Authority: CN
Inventors: 张水坤; 王喜珍; 游海云
Original assignee: Suns Electric (Zhangzhou) Co Ltd
Current assignee: Suns Electric (Zhangzhou) Co Ltd
Priority date: 2012-07-02
Filing date: 2012-07-02
Publication date: 2012-10-17

Abstract

The invention discloses a stroke switch with a remote control reset function, which comprises a shell body, a core part module, an electromagnetic valve, a plunger and a seal sleeve. The core part module and the electromagnetic valve are sequentially arranged in the inner cavity of the shell body; a push rod on the electromagnetic valve is jacked on the slow transmission rod of the core part module; the seal sleeve is sleeved on one end of the shell body; the plunger movably penetrates through the through hole of the seal sleeve; the outer end of the plunger goes out of the seal sleeve; and the inner end of the plunger is connected with one end of the slow transmission rod on the core part module which is fixedly connected with an armature. The stroke switch with the remote control reset function is provided with the core part module and the electromagnetic valve; the push rod on the electromagnetic valve is inserted and buckled on one end of the slow transmission rod on the core part module; the other end of the slow transmission rod is over against the plunger; and the push rod on the electromagnetic valve can drive the slow transmission rod to move back and forth in a core part shell, so that the spring force of a movable rod spring is overcome, a permanent magnet and the armature are close and are actuated and the plunger is reset. Because the electromagnetic valve can be controlled remotely, so that the stroke switch has the remote control reset function.

Description

Travel switch with Long-distance Control reset function

Technical field

The present invention relates to a kind of electrical control part, particularly relate to a kind of travel switch with Long-distance Control reset function.

Background technology

Travel switch is a kind of little electric current master control electrical apparatus commonly used; Be a kind of travel position and electrical equipment of commutation circuit according to moving component; It utilizes the collision of manufacturing machine moving component that its contact is moved and realizes connecting or the disjunction control circuit, reach certain control purpose.Commonly use the mode that resetting of travel switch mostly adopt manual reset and carry out, be installed in a high position or other is difficult to touch local travel switch for some, the quite difficulty that just becomes resets.So the dealer is badly in need of realizing the travel switch that Long-distance Control resets.

Summary of the invention

The object of the present invention is to provide a kind of reliable and stable travel switch that moves with Long-distance Control reset function.

For realizing above-mentioned purpose, technical solution of the present invention is:

The present invention is a kind of travel switch with Long-distance Control reset function, and it comprises housing, core module, electromagnetically operated valve, plunger, sealing shroud; Described core module comprises core housing, slow drive link, permanent magnet, partition, armature, motion bar spring; Described permanent magnet is fixed on an end of core housing inner chamber, and slow drive link slips at core housing inner chamber, and on slow drive link, end fixed armature and a partition relative with permanent magnet, partition is between armature and permanent magnet; Described motion bar spring is installed in core housing inner chamber; The one of which end leans on the top board that core housing intracavity bottom raises up; Its other end leans at the slow drive link other end on the flange inboard that extends below, and forms a spring force that slow drive link is pushed away permanent magnet; Described core module, electromagnetically operated valve are installed in the housing inner chamber in regular turn, and the push rod on the electromagnetically operated valve leans on the slow drive link of core module; Described sealing shroud is socketed in an end of housing, and the plunger activity is located in the through hole of sealing shroud, and the outer end of plunger passes sealing shroud, and an end that is connected with the slow drive link of armature on the inner of plunger and the core module is connected.

Described electromagnetically operated valve comprises iron core, push rod, black iron yoke, U sections yoke, coil; Described black iron yoke snaps onto two free arm ends of U sections yoke, constitutes a rectangular frame; Described coil stationary is in this rectangular frame, and the outer end of iron core is arranged on the base plate of U sections yoke, and the inner of iron core places in coil, and push rod is arranged in the coil and an end is set in the iron core mesopore, and the both ends of the surface of coil are stretched out at the push rod two ends.

Described electromagnetically operated valve is fixed on the housing inner chamber through cover.

After adopting such scheme; The present invention is provided with core module and electromagnetically operated valve, and the push rod on the electromagnetically operated valve leans slow drive link one end on the core module, the other end and plunger eye-splice mutually of slow drive link; Push rod on the electromagnetically operated valve can drive slow drive link and in the core housing, move around; Overcome the spring force of motion bar spring, make permanent magnet and armature, realize resetting of plunger near also adhesive.Because electromagnetically operated valve is remote controlled, so the present invention has the function that Long-distance Control resets.Because the present invention mainly mechanically realizes homing action, have the reliable and stable characteristics of action again.

Below in conjunction with accompanying drawing and specific embodiment the present invention is further described.

Description of drawings

Fig. 1 is a front view of the present invention;

Fig. 2 is the partial sectional view of overlooking of the present invention;

Fig. 3 is a three-dimensional exploded view of the present invention;

Fig. 4 is the three-dimensional exploded view of core module of the present invention;

Fig. 5 is the three-dimensional exploded view of electromagnetically operated valve of the present invention;

Fig. 6 is the working state figure after plunger of the present invention is depressed;

Fig. 7 is the working state figure behind the plunger return of the present invention.

Embodiment

As shown in Figure 1, the present invention is a kind of travel switch with Long-distance Control reset function, and it comprises housing 1, core module 2, electromagnetically operated valve 3, plunger 4, sealing shroud 5.

As shown in Figure 3, described housing 1 is made up of lower house 11 and cover plate 12, and cover plate 12 snaps onto on the open end of lower house 11, between lower house 11 and cover plate 12, is provided with seal 13.

With reference to shown in Figure 2, described core module 2 comprises core housing 21, slow drive link 22, permanent magnet 23, partition 24, armature 25, motion bar spring 26 like Fig. 4.Described permanent magnet 23 is fixed on an end of core housing 21 inner chambers, and slow drive link 22 slips at core housing 21 inner chambers, and on slow drive link 22, an end fixed armature 25 and the partition 24 relative with permanent magnet 23, partition 24 is between armature 25 and permanent magnet 23.Described motion bar spring 26 is the compression spring; It is installed in core housing 21 inner chambers; In conjunction with shown in Figure 1; The one of which end leans on core housing 21 intracavity bottoms raise up 211 top board, and its other end leans at slow drive link 22 other ends on the flange that extends below 221 inboards, forms a spring force that slow drive link 22 is pushed away permanent magnet.

With reference to shown in Figure 1, described electromagnetically operated valve 3 comprises iron core 31, push rod 32, black iron yoke 33, U sections yoke 34, coil 35 like Fig. 5.Described black iron yoke 33 snaps onto two free arms, 341 ends of U sections yoke 34, constitutes a rectangular frame; Described coil 35 is fixed in this rectangular frame; The outer end of iron core 31 is arranged on the base plate 342 of U sections yoke 34; The inner of iron core 31 is set in the coil 35, and push rod 32 is arranged in the coil 35 and an end is set in iron core 31 mesopores both ends of the surface that coil 35 is stretched out at push rod 32 two ends.

Like Fig. 1-shown in Figure 3, described core module 2, electromagnetically operated valve 3 is installed in housing 1 inner chamber in regular turn and electromagnetically operated valve 3 is fixed on housing 1 inner chamber through cover 6; Push rod 32 on the electromagnetically operated valve 3 leans on the slow drive link 22 of core module 2.Sealing shroud 5 is socketed in an end of housing 1.

Described plunger 4 activities are located in the through hole of sealing shroud 5, and the outer end of plunger 4 passes sealing shroud 5, and an end that is connected with the slow drive link 22 of armature 25 on the inner of plunger 4 and the core module 2 is connected; This structural design makes the slow drive link 22 of plunger 4, core module 2 and the push rod on the electromagnetically operated valve 3 32 form mutual interaction relation.

Operation principle of the present invention:

One, as shown in Figure 1, normal operating conditions permanent magnet 23 holds armature 25, on off state closed (or opening).Electromagnetically operated valve 3 no powers.

Two, as shown in Figure 6; When accident, using the operating head of device fires switch head, the plunger 4 of switch presses down, and armature 25 was opened with permanent magnet in 23 minutes; When the about 0.5mm of the stroke left and right sides; The elastic force of motion bar spring 26 is greater than the suction between permanent magnet 23 and armature 25 (as shown in Figure 2), and switch state plays the effect of equipment protection or warning for opening (or closed) under the effect of motion bar spring 26 elastic force.

Three, as shown in Figure 7, after equipment fault is got rid of, electromagnetically operated valve 3 energisings when switch need work on, the push rod 32 of electromagnetically operated valve 3 is by iron core 31 adhesives.The suction of electromagnetically operated valve 3 is greater than the elastic force of motion bar spring 26, and push rod 32 promotes slow drive link 22 makes permanent magnet 23 hold armature 25 (as shown in Figure 2), and switch state is accomplished the switch homing action for closed (or opening) electromagnetically operated valve 3 outages.

Emphasis of the present invention just is: adopt electromagnetically operated valve.

The above is merely preferred embodiment of the present invention, so can not limit the scope that the present invention implements with this, the equivalence of promptly doing according to claim of the present invention and description changes and modifies, and all should still belong in the scope that patent of the present invention contains.

Claims

1. travel switch with Long-distance Control reset function, it is characterized in that: it comprises housing, core module, electromagnetically operated valve, plunger, sealing shroud; Described core module comprises core housing, slow drive link, permanent magnet, partition, armature, motion bar spring; Described permanent magnet is fixed on an end of core housing inner chamber, and slow drive link slips at core housing inner chamber, and on slow drive link, end fixed armature and a partition relative with permanent magnet, partition is between armature and permanent magnet; Described motion bar spring is installed in core housing inner chamber; The one of which end leans on the top board that core housing intracavity bottom raises up; Its other end leans at the slow drive link other end on the flange inboard that extends below, and forms a spring force that slow drive link is pushed away permanent magnet; Described core module, electromagnetically operated valve are installed in the housing inner chamber in regular turn, and the push rod on the electromagnetically operated valve leans on the slow drive link of core module; Described sealing shroud is socketed in an end of housing, and the plunger activity is located in the through hole of sealing shroud, and the outer end of plunger passes sealing shroud, and an end that is connected with the slow drive link of armature on the inner of plunger and the core module is connected.

2. the travel switch with Long-distance Control reset function according to claim 1 is characterized in that: described electromagnetically operated valve comprises iron core, push rod, black iron yoke, U sections yoke, coil; Described black iron yoke snaps onto two free arm ends of U sections yoke, constitutes a rectangular frame; Described coil stationary is in this rectangular frame, and the outer end of iron core is arranged on the base plate of U sections yoke, and the inner of iron core places in coil, and push rod is arranged in the coil and an end is set in the iron core mesopore, and the both ends of the surface of coil are stretched out at the push rod two ends.

3. the travel switch with Long-distance Control reset function according to claim 1 and 2 is characterized in that: described electromagnetically operated valve is fixed on the housing inner chamber through cover.