CN211828665U

CN211828665U - Tripping and opening device of mechanism

Info

Publication number: CN211828665U
Application number: CN202020986246.1U
Authority: CN
Inventors: 侯范武; 陈卢明; 林允缪; 汤方乐
Original assignee: Jubang Group Co ltd
Current assignee: Jubang Group Co ltd
Priority date: 2020-06-02
Filing date: 2020-06-02
Publication date: 2020-10-30
Anticipated expiration: 2030-06-02

Abstract

The utility model provides a tripping and opening device of a mechanism, which comprises a tripping and opening component and a limiting structure, wherein the tripping and opening component is provided with an initial position and an action position which is driven by a firing pin of a fuse to drive the mechanism to be switched from a closing state to an opening state; the limiting structure is suitable for being correspondingly abutted against the tripping opening component when the tripping opening component moves to a set action position, so that the tripping opening component can be prevented from moving beyond the set action position, the mechanism opening shaft is prevented from being damaged, and the service life is prolonged.

Description

Tripping and opening device of mechanism

Technical Field

The utility model relates to a cubical switchboard technical field, concretely relates to dropout separating brake device of mechanism.

Background

The existing switch cabinet is generally provided with a fuse and a tripping and separating brake device for protecting a circuit, and the working principle is as follows: when a fuse in the circuit is fused due to fault current, a firing pin in the fuse can be ejected out, so that the tripping and opening device is pushed to act, the tripping and opening device drives a mechanism to open a brake shaft, the circuit is cut off, and the circuit is protected.

Chinese patent document CN205881792U discloses a tripping device of a load switch-fuse combined electrical appliance of a ring main unit, which comprises a fuse transmission bracket and a tripping assembly for tripping by the fuse transmission bracket, wherein the tripping assembly comprises a tripping linkage crank arm with one end connected with the fuse in a transmission manner, the other end of the tripping linkage crank arm is connected with the bottom end of a pull rod, the top end of the pull rod is connected with one end of a lever, the other end of the lever is connected with the upper end of a connecting rod, the lower end of the connecting rod is connected with a projecting end arranged at the rear side of a tripping rotating shaft on the tripping bracket, the front side of the tripping rotating shaft is provided with another projecting end, the projecting end is connected with a reset spring, a tripping driving lever is arranged on the tripping rotating shaft, the tripping assembly has a complex structure, when a circuit fails, the tripping assembly is driven by the fuse transmission bracket, the tripping rotating shaft, if the pull-down force of fuse transmission support transmission is too big, and be used in mechanism's separating brake epaxial, can make mechanism's separating brake epaxial cause the damage, subtract short life.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the transmission pull-down dynamics among the prior art too big, makes the separating brake switch cause the defect of damage to a tripping opening device of the mechanism that prevents the dynamics of acting on too big to cause the damage to the brake shaft is provided.

Therefore, the utility model provides a tripping and opening device of a mechanism, which comprises a tripping and opening component and a limiting structure, wherein the tripping and opening component is provided with an initial position and an action position which is driven by a firing pin of a fuse to drive the mechanism to be switched from a closing state to an opening state; the limiting structure is suitable for correspondingly abutting against the tripping and opening component when the tripping and opening component moves to the set action position.

The tripping and brake-separating assembly comprises a first driving plate, a first pull rod, a crank arm and a second pull rod, and the first driving plate is driven by the firing pin to act; one end of the first pull rod is connected with the first driving plate, and the other end of the first pull rod is connected with the crank arm; the crank arm is rotatably arranged on the panel through a rotating shaft, the crank arm is provided with a first rotating arm and a second rotating arm which are respectively arranged at two ends of a rotating center of the crank arm and arranged at a certain included angle, and the first rotating arm is connected with the first pull rod; one end of the second pull rod is connected with the second rotating arm, and the other end of the second pull rod is provided with a tripping opening sheet for driving the mechanism to open the brake.

The limiting structure comprises a limiting hole formed in the connecting lever and a limiting block arranged on the panel and suitable for being inserted into the limiting hole to limit the moving track of the connecting lever.

The limiting hole is an arc-shaped hole.

The limiting block is a bolt fixedly arranged on the panel.

And a nut is arranged at one end of the bolt extending out of the limiting hole, and the size of the nut is larger than the width of the limiting hole.

The tripping and opening assembly is characterized by also comprising a return spring for driving the tripping and opening assembly to reset.

One end of the reset spring is connected with the panel, the other end of the reset spring is connected with the connecting lever, and the reset spring applies elastic acting force acting towards the direction of the initial position to the tripping and opening assembly.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a tripping and separating brake device of mechanism, limit structure are suitable for when tripping and separating brake subassembly moves to the action position of settlement, and it offsets rather than corresponding, can prevent tripping and separating brake subassembly motion like this and surpass the action position of settlement, avoid it to cause the damage to mechanism's separating brake axle, have prolonged life.

2. The utility model provides a tripping and brake-separating device of a mechanism, a tripping and brake-separating component comprises a first drive plate, a first pull rod, a crank arm and a second pull rod, wherein the first drive plate is driven by a firing pin to move; one end of the first pull rod is connected with the first driving plate, and the other end of the first pull rod is connected with the crank arm; the crank arm is rotatably arranged on the panel through a rotating shaft, the crank arm is provided with a first rotating arm and a second rotating arm which are respectively arranged at two ends of a rotating center of the crank arm and arranged at a certain included angle, and the first rotating arm is connected with the first pull rod; one end of the second pull rod is connected with the second rotating arm, the other end of the second pull rod is provided with a tripping opening sheet for opening the driving mechanism, and compared with the prior art that the tripping opening sheet comprises a fuse transmission support, a tripping linkage crank arm, a pull rod, a lever, a connecting rod, a tripping support, a tripping rotating shaft, a reset spring and an opening deflector rod, the tripping opening assembly has the advantage of simple structure.

3. The utility model provides a tripping and separating brake device of mechanism, limit structure is including locating the spacing hole on the connecting lever to and locate being suitable for on the panel insert spacing downthehole, with the stopper of restriction connecting lever removal orbit, spacing hole is the arc hole, sets up like this and can guarantee that the connecting lever moves according to setting for the removal orbit on the panel, and the reliability is high, and the stopper of mutually supporting has simple structure's advantage with spacing hole.

4. The utility model provides a mechanism's dropout separating brake device, the one end that the bolt stretches out spacing hole are equipped with the nut, and the size of nut is greater than the width size in spacing hole, and the nut can prevent that the connecting lever from breaking away from with the bolt in the motion, and the reliability is higher.

5. The utility model provides a tripping and separating brake device of mechanism, reset spring's one end links to each other with the panel, and the other end links to each other with the turning arm, and reset spring applys the elastic force towards initial position direction action to tripping and separating brake subassembly, enables tripping and separating brake subassembly automatic re-setting to the state before the motion like this, need not staff's manual operation, convenient and fast more.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a tripping and opening device of the mechanism of the utility model;

fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Description of reference numerals: 1. tripping and opening the brake component; 2. a first drive plate; 3. a first pull rod; 4. a crank arm; 41. a rotating shaft; 42. a first rotation arm; 43. a second rotating arm; 44. a limiting hole; 5. a panel; 51. a bolt; 52. a nut; 6. a second pull rod; 61. tripping the brake separating sheet; 7. a return spring.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Examples

The present embodiment provides a tripping and opening device of a mechanism, as shown in fig. 1, including a first driving plate 2, a first pull rod 3, a crank arm 4, a panel 5, a second pull rod 6, and a return spring 7.

The first driving plate 2 is driven by the striker of the fuse.

And one end of the first pull rod 3 is connected with the first driving plate 2, and the other end of the first pull rod is connected with the crank arm 4.

As shown in fig. 1 and 2, the crank arm 4 is rotatably mounted on the panel 5 through a rotating shaft 41, the crank arm 4 has a first rotating arm 42 and a second rotating arm 43 respectively disposed at two ends of a rotation center of the crank arm 4 and disposed at a certain included angle, the first rotating arm 42 is connected to the first pull rod 3, and the crank arm 4 is provided with a limiting hole 44, in this embodiment, the limiting hole 44 is an arc-shaped hole.

The panel 5, be equipped with on the panel 5 and be suitable for inserting in spacing hole 44 to the restriction the stopper of connecting lever 4 removal orbit, the stopper is for fixed locating the bolt 51 of panel 5, bolt 51 stretches out the one end in spacing hole 44 is equipped with nut 52, nut 52's size is greater than the width dimension in spacing hole 44.

One end of the second pull rod 6 is connected with the second rotating arm 43, and the other end of the second pull rod is provided with a tripping opening sheet 61 for driving the mechanism to open the brake.

The reset spring 7 drives the tripping and opening assembly 1 to reset, one end of the reset spring 7 is connected with the panel 5, the other end of the reset spring is connected with the crank arm 4, and the reset spring 7 applies elastic acting force acting towards the direction of the initial position to the tripping and opening assembly 1.

In an alternative embodiment, the stopper hole 44 is provided in the panel 5, and the stopper is provided in the crank arm 4.

As an alternative embodiment, a return spring 7 can be connected to the first tie rod 3 or the second tie rod 6, respectively, to drive the first tie rod 3 or the second tie rod 6 to return.

As an alternative embodiment, the mechanism is provided with a stop block which can cooperate with a stop block arranged on the first pull rod 3 or the second pull rod 6 to stop and limit the action position.

The utility model provides a tripping and separating brake device of mechanism, limit structure are suitable for when tripping and separating brake subassembly moves to the action position of settlement, and it offsets rather than corresponding, can prevent tripping and separating brake subassembly motion like this and surpass the action position of settlement, avoid it to cause the damage to mechanism's separating brake axle, have prolonged life.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A trip opening device of a mechanism, comprising:

the tripping and opening assembly (1) is provided with an initial position and an action position which is driven by a firing pin of the fuse to drive the mechanism to be switched from a closing state to an opening state;

and the limiting structure is suitable for correspondingly abutting against the tripping and opening component when the tripping and opening component moves to the set action position.

2. Trip opening device of a mechanism according to claim 1, characterised in that said trip opening assembly (1) comprises:

a first driving plate (2) driven by the striker;

one end of the first pull rod (3) is connected with the first driving plate (2), and the other end of the first pull rod is connected with the crank arm (4);

the crank arm (4) is rotatably arranged on the panel (5) through a rotating shaft (41), the crank arm (4) is provided with a first rotating arm (42) and a second rotating arm (43) which are respectively arranged at two ends of a rotating center and arranged at a certain included angle, and the first rotating arm (42) is connected with the first pull rod (3);

and one end of the second pull rod (6) is connected with the second rotating arm (43), and the other end of the second pull rod is provided with a tripping opening sheet (61) for driving the mechanism to open the valve.

3. The trip and trip device of mechanism according to claim 2, wherein said limiting structure comprises a limiting hole (44) formed on said crank arm (4), and a limiting block formed on said panel (5) and adapted to be inserted into said limiting hole (44) to limit the moving track of said crank arm (4).

4. The trip tripping device of a mechanism according to claim 3, wherein the limiting hole (44) is an arc-shaped hole.

5. The trip tripping device of a mechanism according to claim 3 or 4, wherein the limiting block is a bolt (51) fixedly arranged on the panel (5).

6. The trip opening device of the mechanism according to claim 5, characterized in that a nut (52) is arranged at one end of the bolt (51) extending out of the limiting hole (44), and the size of the nut (52) is larger than the width size of the limiting hole (44).

7. The trip opening device of a mechanism according to claim 6, further comprising a return spring (7) for driving the trip opening assembly (1) to return.

8. The trip and trip device of mechanism according to claim 7, wherein one end of the return spring (7) is connected to the panel (5) and the other end is connected to the crank arm (4), and the return spring (7) applies an elastic force acting toward the initial position to the trip and trip assembly (1).