CN212209265U

CN212209265U - Switch emergency tripping device

Info

Publication number: CN212209265U
Application number: CN202021147385.1U
Authority: CN
Inventors: 张树民; 王大伟; 孙莉莉; 刘相青; 王成海; 李洪兵
Original assignee: Tai'an Taihe Power Equipment Co ltd
Current assignee: Tai'an Taihe Power Equipment Co ltd
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2020-12-22
Anticipated expiration: 2030-06-19

Abstract

The utility model relates to a switch promptly trip gear is equipped with the branch brake lever in the mechanism box, and switch promptly trip gear is including being located the mechanism box and pushing up push rod, the lead screw of setting on the branch brake lever in the mechanism box to and drive the lead screw and push up the drive arrangement to the periphery on the push rod periphery, set up the recess that is located the lead screw rear on the periphery of push rod. The utility model realizes the rapid switching-off operation of the mechanism through the arrangement of the push rod, the lead screw and the groove, and simultaneously ensures that the mechanism can not switch on the switch, so as to realize the cutting-off of the current of the loop; the push rod is automatically reset through the arrangement of the first torsion spring and the push-pull rod; the distance between the first bolt and the brake separating rod is convenient to adjust through the arrangement of the first bolt; the power for pushing the screw rod to the push rod is provided by the elasticity of the spring, and the spring pushes the hinge connecting shaft to automatically reset; through the arrangement of threaded connection, the length of the screw rod between the screw rod cap and the push rod can be conveniently adjusted.

Description

Switch emergency tripping device

Technical Field

The utility model relates to the field of machinary, especially, relate to mechanical parts technical field, specifically indicate a switch promptly trip gear and application method thereof.

Background

The normal opening and closing operation of the circuit breaker mechanism is generally realized in a mechanism box body, the indoor and outdoor operation is realized in the mechanism box body, and due to the high voltage level, the electric opening and closing operation of the circuit breaker mechanism is very frequent, so that the circuit breaker mechanism is difficult to avoid under the normal power-on condition, and during the electric opening operation, an opening rod cannot act on an opening pawl, so that the opening pawl is disengaged, and the opening operation is generated. Meanwhile, due to the particularity of the mechanism box body, a box body door or an upper cover is generally provided with a door lock and an electromagnetic lock, the manual closing and opening operation is performed by opening the box body door or the upper cover, a key needs to be found or a handle needs to be rotated after the power is turned on, so that the situation that the power cannot be cut off when the power is turned on can be still achieved for a period of time, and the situation that the power cannot be cut off when the power is turned on can be caused.

Therefore, there is a need for a device that can realize fast opening operation of the breaker mechanism when the breaker mechanism fails to perform normal electric opening in time, and at the same time, ensure that the breaker mechanism cannot be closed to cut off the current in the loop.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art's not enough, provide a switch promptly trip gear and application method thereof, can realize the quick separating brake operation of mechanism, guarantee simultaneously that the mechanism can't close a floodgate to realize cutting off of the electric current in return circuit.

The utility model relates to a switch promptly trip gear that following technical scheme realized is equipped with branch brake lever in the mechanism box, including being located the mechanism box and pushing up push rod, the lead screw of setting on the mechanism box on the branch brake lever to and drive the drive arrangement on lead screw top to the push rod periphery, set up the recess that is located the lead screw rear on the periphery of push rod.

When the utility model is used, the push rod is pushed forwards to drive the brake separating rod to act on the brake separating pawl, so that the brake separating pawl is separated to generate brake separating operation, meanwhile, the groove on the push rod moves to the lower part of the screw rod, under the push of the driving device, the screw rod is pushed to the bottom of the groove, and when the push rod moves backwards, the screw rod is pushed to the groove wall of the groove to prevent the push rod from moving backwards; through the arrangement of the push rod, the lead screw and the groove, the rapid brake opening operation of the mechanism is realized, and meanwhile, the mechanism cannot be closed, so that the current of a loop is cut off.

As optimization, the push rod is detachably connected with a push-pull rod through a first pin shaft, one end of the push-pull rod, which is far away from the push rod, is connected with a first torsion spring through a spacer bush, one end of the first torsion spring is connected with the rear end of the push-pull rod, and the other end of the first torsion spring is connected with the mechanism box body.

When the optimized scheme is used, the push rod drives the push-pull rod to rotate forwards and drives the first torsion spring to generate torsion, when the screw rod is separated from the groove, the torsion of the first torsion spring drives the push-pull rod to reset, the push-pull rod drives the push rod to reset, and the push rod moves backwards; through the arrangement of the first torsion spring and the push-pull rod, the push rod is automatically reset.

Preferably, the box body is further provided with a travel switch, and a long tongue piece of the travel switch is located in front of the first pin shaft.

This optimization scheme passes through travel switch's setting, moves forward at the push rod and drives first round pin axle and move forward, and first round pin axial cavity motion can push down long tongue piece, makes travel switch closed, and travel switch produces return circuit signal, feeds back to control panel, and the staff of being convenient for knows the removal condition of push rod to carry out holistic assurance to whole process.

Preferably, the front end of the push rod is in threaded connection with a first bolt of which the axis is parallel to the axis of the push rod, and the first bolt is propped against the brake separating rod. This preferred scheme is through the setting of first bolt, can adjust first bolt and push rod threaded connection's length to be convenient for adjust the length sum of push rod and first bolt, be convenient for adjust the distance between first bolt and the separating brake pole.

Preferably, the driving device comprises a hinge connecting shaft arranged in the mechanism box in a penetrating manner, a transmission mechanism for connecting the hinge connecting shaft and the screw rod, and a guide plate fixedly connected to the mechanism box, wherein a guide hole for the screw rod to penetrate through is formed in the guide plate.

When the optimized scheme is used, the hinge connecting shaft is pushed, and the hinge connecting shaft drives the screw rod to be ejected into the groove through the transmission mechanism, so that the push rod is prevented from moving backwards; through the arrangement of the guide plate and the guide hole, the screw rod is pushed to the push rod under the guide and limiting effects.

Preferably, the transmission mechanism comprises a lever, one end of the lever is hinged to the hinge connecting shaft, the other end of the lever is hinged to a screw rod cap, the screw rod cap is connected with the screw rod, the lever is hinged to the mechanism box body through a first hinged shaft, and the first hinged shaft is located between the hinge connecting shaft and the screw rod cap.

When the optimized scheme is used, the hinge connecting shaft pushes the lever to rotate, the lever rotates to drive the screw rod cap to rotate, and the screw rod cap drives the screw rod to push the push rod.

Preferably, the hinge connecting shaft is further sleeved with a spring, one end of the spring is connected with the mechanism box body, and the other end of the spring is connected to the hinge connecting shaft.

When the optimized scheme is used, the spring is compressed to push the hinge connecting shaft to move backwards, the hinge connecting shaft drives the screw rod to be pushed to the circumferential surface of the push rod through the transmission mechanism under the action of the elastic force of the spring, when the screw rod needs to be separated from the groove, the hinge connecting shaft is pushed to move forwards to compress the spring, and when the push rod is reset, the spring pushes the hinge connecting shaft to reset; the power for pushing the screw rod to the push rod is provided by the elastic force of the spring, so that the screw rod is always pushed to the push rod, and meanwhile, the spring pushes the hinge connecting shaft to automatically reset.

Preferably, the screw is screwed in the screw cap. This preferred scheme is through threaded connection's setting, is convenient for adjust the lead screw at the lead screw cap and the length between the push rod.

As optimization, mechanism box external screw thread connection has two hinges, and the hinge has the safety cover through activity round pin hub connection, the epaxial second torsional spring that has cup jointed of activity round pin, the one end of second torsional spring is fixed on the safety cover, and the other end rigid coupling is in on the mechanism box, the push rod is connected with the push rod button that is located a safety cover, the hinge connecting axle extends to in another safety cover.

This optimization scheme passes through the setting of safety cover, plays the effect of protection push rod and hinge connection axle, and through the setting of second torsional spring, it is automatic closed to be convenient for drive the safety cover.

The utility model has the advantages that: through the arrangement of the push rod, the lead screw and the groove, the rapid switching-off operation of the mechanism is realized, and meanwhile, the mechanism cannot be switched on, so that the current of a loop is cut off; the push rod is automatically reset through the arrangement of the first torsion spring and the push-pull rod; through the arrangement of the first bolt, the length of the threaded connection between the first bolt and the push rod can be adjusted, so that the sum of the lengths of the push rod and the first bolt can be conveniently adjusted, and the distance between the first bolt and the brake separating rod can be conveniently adjusted; the power for pushing the screw rod to the push rod is provided by the elastic force of the spring, so that the screw rod is always pushed to the push rod, and meanwhile, the spring pushes the hinge connecting shaft to automatically reset; through the arrangement of threaded connection, the length of the screw rod between the screw rod cap and the push rod can be conveniently adjusted.

Drawings

FIG. 1 is a schematic view of a structural part of the present invention;

FIG. 2 is a perspective view of a portion of FIG. 1 taken along direction A;

shown in the figure:

1. the safety protection device comprises a protection cover, 2, a movable pin shaft, 3, a mechanism box body, 4, a hinge, 5, a gasket, 6, a spring, 7, a second hinged shaft, 8, a lever, 9, a first hinged shaft, 10, a mounting plate, 11, a hinge connecting shaft, 12, a gasket, 13, a travel switch, 14, a first bolt, 15, a push rod, 16, a push-pull rod, 17, a second torsional spring, 18, a flat plate, 19, a first torsional spring, 20, a spacer bush, 21, an arched bent plate, 22, a screw rod cap, 23, a first pin shaft, 25, a screw rod, 26 and a push rod button.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.

Referring to the accompanying drawings 1-2, the utility model relates to a switch promptly trip gear and method of use thereof, the circuit breaker includes mechanism box 3, the sincere son of separating brake that is located mechanism box 3 to and the branch brake lever that acts on the sincere son of separating brake, still be equipped with the mounting panel 10 with mechanism box 3 rigid coupling in the mechanism box 3 to it is preceding to the inboard direction of mechanism box 3, is the back to the mechanism box 3 outside.

The utility model provides a switch promptly trip gear, includes push rod 15, set up the first perforation that supplies push rod 15 to penetrate on the mounting panel 10, the rigid coupling has liner 12 in the mechanism box 3, push rod 15 passes mechanism box 3, liner 12, first perforation in proper order to by mechanism box 3, liner 12 to and mounting panel 10 supports, process the screw hole that extends to push rod 15 rear end on the front end terminal surface of push rod 15, screw hole female connection has first bolt 14, and first bolt 14's front end pushes up to on dividing the brake lever.

The circumferential surface of the push rod 15 between the mechanism box body 3 and the mounting plate 10 is provided with a groove, the groove extends along the axial direction of the push rod 15, the push rod 15 is provided with a first pin shaft 23 in a penetrating way, the penetrating direction of the first pin shaft 23 is vertical to the axial line of the push rod 15, the first pin shaft 23 is positioned below the groove, the mounting plate 10 is fixedly provided with a travel switch 13 positioned in front of the first pin shaft 23, a long tongue piece on the travel switch 13 extends to the front end of the part of the first pin shaft 23 penetrating out of the push rod 15,

the utility model discloses still include push-and-pull rod 16, u type groove has been seted up to push-and-pull rod 16's one end, push rod 15 passes the u type groove, and first round pin axle 23 runs through two cell walls that the u type groove is relative, is connected push rod 15 with push-and-pull rod 16, push-and-pull rod 16's the one end of keeping away from push rod 15 is connected with first torsion spring 19 through spacer 20, the rear end of push-and-pull rod 16 is connected to first torsion spring 19's one end, other end coupling mechanism box 3, and spacer 20 is connected with mechanism box 3 through dull and stereotyped 18.

The utility model discloses still include axis and the parallel hinge connection axle 11 of push rod 15 axis, set up the second that supplies hinge connection axle 11 to run through on the mounting panel 10 and perforate, hinge connection axle 11 runs through mechanism box 3 and the second is perforated, the spring 6 that is located between framework box and the mounting panel 10 has been cup jointed on the hinge 4 chain connection axle, and the equal rigid coupling in spring 6 both ends has gasket 5, and 5 tops of a gasket are to the mounting panel 10 on, and 5 rigid couplings of another gasket are on hinge connection axle 11.

The last articulated lever 8 that has through first articulated shaft 9 of mounting panel 10, lever 8 is located between hinge 4 hinge connecting axle and push rod 15, and is the L-shaped board, and the one end of lever 8 is articulated through the part that second articulated shaft 7 stretches out mounting panel 10 with hinge 4 articulated shaft, and the other end of lever 8 articulates through the third articulated shaft has lead screw cap 22, between 9 positions of first articulated shaft and second articulated shaft 7 and the third articulated shaft, and the axis of first articulated shaft 9, the axis of second articulated shaft 7 to and the axis of third articulated shaft is parallel to each other, the axis of first articulated shaft 9 perpendicular and the axis of push rod 15, lead screw cap 22 internal thread connection has lead screw 25 of pushing up to the push rod 15 periphery, lead screw 25 pushes up the place ahead to the recess, the axis of lead screw 25 is perpendicular to the axis of push rod 15, and perpendicular and the axis of first articulated shaft 9, the rigid coupling has the deflector on the mounting panel 10, the guide plate is provided with a guide hole for the screw rod 25 to pass through.

The rear end of push rod 15 is connected with push rod button 26, and the rear end of hinge connecting axle 11 is connected with the connecting axle button, and the rigid coupling has two arch bent plates 21 on the mechanism box 3, and push rod button 26 and connecting axle button are located two arch bent plates 21 respectively, and threaded connection has the hinge 4 that is located arch bent plate 21 top on the mechanism box 3, and it has activity round pin axle 2 to articulate on the hinge 4, and the rigid coupling has the safety cover 1 that covers arch bent plate 21 and hinge 4 on the activity round pin axle 2, has cup jointed second torsional spring 17 on the activity round pin axle 2, the one end of second torsional spring 17 is connected on safety cover 1, and the other end is connected on arch bent plate 21.

A method for using a switch emergency trip device, comprising the steps of:

a. pushing the push rod button 26 to drive the push rod 15 and the first bolt 14 to move forwards, pushing the brake separating rod by the first bolt 14 to enable the brake separating rod to act on the brake separating pawl, releasing the brake separating pawl and realizing brake separation, enabling the screw rod 25 to be pushed into the groove by the movement of the push rod 15, driving the push-pull rod to rotate forwards by the push rod 15 through the first pin shaft 23, driving the first torsion spring 19 to generate torsion by the forward rotation of the push-pull rod, and enabling the first pin shaft 23 to move forwards and press the long tongue piece of the travel switch 13;

b. the hinged connecting shaft is pushed to move forwards, the second torsion spring 17 is extruded onto the mechanism box body 3 by the hinged connecting shaft, meanwhile, the hinged connecting shaft drives the lever 8 to rotate, the screw rod 25 is driven to be separated from the groove by the rotation of the lever 8, the push-pull rod is driven to move backwards under the action of the first torsion spring 19, and the push-pull rod moves backwards to drive the push rod to move backwards, so that the brake separating pawl is separated from the constraint of the brake separating rod.

Of course, the above description is not limited to the above examples, and technical features of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should also belong to the protection scope of the claims of the present invention.

Claims

1. The utility model provides a switch promptly trip gear is equipped with branch brake lever in mechanism box (3), its characterized in that: the mechanism comprises a push rod (15) which is positioned in a mechanism box body (3) and pushes against a brake separating rod, a screw rod (25) which is arranged in the mechanism box body, and a driving device which drives the screw rod (25) to push against the circumferential surface of the push rod (15), wherein a groove which is positioned behind the screw rod (25) is formed in the circumferential surface of the push rod (15).

2. The switch emergency trip device of claim 1, wherein: the push rod (15) is detachably connected with a push-pull rod (16) through a first pin shaft (23), one end, far away from the push rod (15), of the push-pull rod (16) is connected with a first torsion spring (19) through a spacer bush (20), one end of the first torsion spring (19) is connected with the rear end of the push-pull rod (16), and the other end of the first torsion spring is connected with the mechanism box body (3).

3. The switch emergency trip device of claim 1, wherein: the box body is also provided with a travel switch (13), and a long tongue piece of the travel switch (13) is positioned in front of the first pin shaft (23).

4. The switch emergency trip device of claim 1, wherein: the front end of the push rod (15) is in threaded connection with a first bolt (14) with an axis parallel to the axis of the push rod, and the first bolt (14) is ejected onto the brake separating rod.

5. The switch emergency trip device of claim 1, wherein: the driving device comprises a hinge connecting shaft (11) arranged in the mechanism box body (3) in a penetrating mode, a transmission mechanism for connecting the hinge connecting shaft with the screw rod (25) and a guide plate fixedly connected to the mechanism box body (3), and a guide hole for the screw rod (25) to penetrate through is formed in the guide plate.

6. The switch emergency trip device of claim 5, wherein: drive mechanism includes one end and hinge connection axle (11) articulated lever (8), the other end of lever (8) articulates there is lead screw cap (22), lead screw cap (22) are connected lead screw (25), lever (8) articulate on mechanism box (3) through first articulated shaft (9), and first articulated shaft (9) are located between hinge connection axle (11) and lead screw cap (22).

7. The switch emergency trip device of claim 5, wherein: the hinge connecting shaft (11) is further sleeved with a spring (6), one end of the spring (6) is connected with the mechanism box body (3), and the other end of the spring is connected to the hinge connecting shaft (11).

8. The switch emergency trip device of claim 6, wherein: the screw rod (25) is in threaded connection with the screw rod cap (22).

9. The switch emergency trip device of claim 5, wherein: mechanism box (3) external screw thread connection has two hinges (4), and hinge (4) are connected with the safety cover through activity round pin axle (2), second torsional spring (17) have been cup jointed on activity round pin axle (2), the one end of second torsional spring (17) is fixed on the safety cover, and the other end rigid coupling is in on the mechanism box (3), push rod (15) are connected with push rod button (26) that are located a safety cover (1), hinge connecting axle (11) are connected with the connecting axle button that is located another safety cover (1).