CN211719453U

CN211719453U - Operating mechanism of switch fuse

Info

Publication number: CN211719453U
Application number: CN202020697805.7U
Authority: CN
Inventors: 张彦阳; 史克少; 温光宇; 王斌; 任昌宾
Original assignee: Zhejiang Tengen Electric Co Ltd
Current assignee: Zhejiang Tengen Electric Co Ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2020-10-20
Anticipated expiration: 2030-04-29

Abstract

The utility model provides an operating mechanism of a switch fuse, which comprises a button piece, a handle and a contact assembly which are arranged on a base in sequence from left to right; the button piece is slidably arranged on the base; the handle is rotatably arranged on the base, is respectively connected with the button and the contact assembly through a first connecting rod and a second connecting rod, and is driven by the button to rotate so as to drive the contact support of the contact assembly to rotate; the contact assembly comprises a contact support rotatably arranged on the base, a moving contact arranged in linkage with the contact support, and a static contact arranged opposite to the moving contact. When the button moves left and right, the handle is driven to rotate through the first connecting rod, the contact support of the contact assembly is driven to move through the second connecting rod, the moving contact and the static contact are connected or disconnected in a contact mode, and the opening and closing actions are achieved.

Description

Operating mechanism of switch fuse

Technical Field

The utility model relates to a fuse technical field, concretely relates to switching fuse's operating device.

Background

The fuse type isolating switch is a simple and effective protective electric appliance which can be manually operated, integrates a fuse and an isolating switch, and plays a role in isolating a circuit and protecting a short circuit in the circuit.

The existing switch fuse is generally a handle type switch fuse, and people rotate a handle to drive an operating mechanism to act so as to drive a movable contact and a fixed contact to be connected or disconnected in a contact manner.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the present invention lies in overcoming the defect that the operating mechanism of the switch fuse in the prior art occupies a large space, thereby providing an operating mechanism of the switch fuse that can be used in a narrow space.

Therefore, the utility model provides an operating mechanism of a switch fuse, which comprises a button, a handle and a contact assembly which are arranged on a base in sequence from left to right; a button member slidably mounted on the base; the handle is rotatably arranged on the base, is respectively connected with the button and the contact assembly through a first connecting rod and a second connecting rod, and is driven by the button to rotate so as to drive the contact support of the contact assembly to rotate; the contact assembly comprises a contact support rotatably arranged on the base, a moving contact arranged in linkage with the contact support, and a static contact arranged opposite to the moving contact.

The contact support through first pivot with the base rotates to be connected, and it includes the support mainboard, and divide and locate support mainboard both sides, rather than two support curb plates of perpendicular setting, the support curb plate has the confession under the shaping first perforation that first pivot was worn to establish to and the confession of shaping on the second perforation that second connecting rod one end was worn to establish.

The moving contact is connected with the contact support through a second rotating shaft arranged on the support side plate and is in linkage with the contact support through a combination structure.

The moving contact comprises a contact main board and two contact side boards which are respectively arranged on two sides of the contact main board and are perpendicular to the contact main board, and third through holes for the second rotating shaft to penetrate are formed in the contact side boards.

At least one contact side plate is positioned on the outer side of the bracket side plate.

The combination structure comprises a support plate and a first biasing member, wherein the support plate is arranged at the front end of the support side plate and extends to the position below the contact main plate; and one end of the first biasing member abuts against the contact support, the other end of the first biasing member abuts against the movable contact, and the first biasing member applies a biasing force to the contact main plate to enable the contact main plate to be in press fit with the support plate.

The first biasing member is a first torsion spring sleeved on the second rotating shaft, one end of the first torsion spring is abutted to the support side plate, and the other end of the first torsion spring is abutted to the contact main plate.

The width of the moving contact and the fixed contact is greater than 1/2 of the width of the base.

The handle is characterized by further comprising a second biasing member for driving the operating mechanism to reset, the second biasing member is a second torsion spring sleeved on the cylinder at the lower part of the handle, one end of the second torsion spring abuts against the driving block at the upper part of the handle, and the other end of the second torsion spring abuts against the second stop block on the base.

The handle pass through the third pivot with the base rotates to be connected, the shaping has the confession on the handle first connecting rod male first jack, confession second connecting rod male second jack, and confession third pivot male third jack, first jack the second jack with the third jack is triangular distribution.

The utility model discloses technical scheme has following advantage:

1. the utility model provides an operating device of switch fuse, include and set gradually the button on the base from a left side to the right side, handle and contact assembly, install on the base button slidable, the handle is rotationally installed on the base, and link to each other with button and contact assembly through first connecting rod and second connecting rod respectively, the button is when controlling, drive the handle through first connecting rod and rotate, and then drive the contact carrier action of contact assembly through the second connecting rod, make the movable contact, static contact intercommunication or disconnection, realize separating brake and combined floodgate action, above-mentioned operating device arranges along the length direction of base, vertical occupation space is little, be applicable to and use in narrow space.

2. The utility model provides an operating device of switch fuse, the integrated configuration includes: the supporting plate is arranged at the front end of the bracket side plate and extends to the lower part of the contact main plate; first biasing member, one end offsets with the contact support, and the other end offsets with the moving contact, and first biasing member applys the biasing force that makes it and backup pad crimping laminating to the contact mainboard to the contact support is when rotating, and the moving contact can follow the linkage rotation of contact support, and the structure of backup pad and first biasing member sets up simply, and convenient assembly.

3. The utility model provides an operating device of switch fuse, at least one the contact curb plate is located the outside of support curb plate, and the width that can make the contact mainboard like this sets up great, increases the current-carrying area of moving contact to the messenger also can guarantee lower temperature rise in less space.

4. The utility model provides an operating device of switch fuse, the width of moving contact and static contact all is greater than 1/2 of base width, can increase the current-carrying area of moving, static contact like this to the messenger also can guarantee lower temperature rise in less space, has improved the reliability.

5. The utility model provides an operating device of switch fuse, the second torsional spring on the cylinder of handle lower part is located for the cover to the second biasing spare, the one end of second torsional spring offsets with the drive block on handle upper portion, and the second stopper on the other end and the base offsets, and during the combined floodgate, the handle rotates clockwise, and drive block compression second torsional spring makes it accumulate the energy, and during the separating brake, second torsional spring release energy, the driving handle resets, and the second torsional spring has simple structure, simple to operate's advantage.

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 view of an assembly structure of an operating mechanism and a base of a switching fuse according to the present invention;

FIG. 2 is a schematic structural view of an operating mechanism of the switching fuse;

FIG. 3 is an assembled perspective view of the fixed contact, the fixed contact and the first torsion spring between the contacts;

FIG. 4 is another perspective view of FIG. 3 rotated through an angle;

fig. 5 is an exploded perspective view of the contact holder, the stationary contact, and the first torsion spring;

FIG. 6 is an exploded view of the handle and second torsion spring;

fig. 7 is an assembled perspective view of the operating mechanism of the switching fuse and the base.

Description of reference numerals: 1. a base; 11. a first rotating shaft; 12. a second stopper; 13. a third rotating shaft; 2. A button piece; 21. a long groove; 3. a handle; 31. a cylinder; 32. a second torsion spring; 33. a drive block; 4. a first link; 5. a second link; 6. a contact holder; 61. a support main board; 62. a bracket side plate; 63. a second rotating shaft; 64. a support plate; 65. a first torsion spring; 66. a first stopper; 7. a moving contact; 71. a contact main board; 72. a contact side plate; 8. and (7) carrying out static contact.

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 an operating mechanism of a switching fuse, as shown in fig. 1 and 2, comprising a button 2, a first link 4, a handle 3, a second link 5 and a contact assembly, which are sequentially arranged on a base 1 from left to right.

And the button 2 is slidably arranged on the base 1, and the button 2 is provided with a long groove 21 for sliding one end of the first connecting rod 4.

The first link 4 is a U-shaped rod, one end of which is inserted into the elongated slot 21 of the button 2 and the other end of which is inserted into the first insertion hole of the handle 3.

The handle 3 is rotatably installed on the base 1 through a third rotating shaft 13, as shown in fig. 2, a first inserting hole for inserting the first connecting rod 4, a second inserting hole for inserting the second connecting rod 5 and a third inserting hole for inserting the third rotating shaft 13 are formed in the handle 3, and the first inserting hole, the second inserting hole and the third inserting hole are distributed in a triangular shape. As shown in fig. 6, a cylinder 31 is disposed at the lower part of the handle 3, a driving block 33 is disposed at the upper part of the handle 3, a second torsion spring 32 is sleeved on the cylinder 31, one end of the second torsion spring is inserted into the groove between the driving block 33 and the main body of the handle 3, and the other end of the second torsion spring is abutted against the second stopper 12 on the base 1. The handle 3 is respectively connected with the button 2 and the contact component through a first connecting rod 4 and a second connecting rod 5, and the handle 3 is driven by the button 2 to rotate so as to drive a contact support 6 of the contact component to rotate.

The second link 5 is a U-shaped rod, one end of which is inserted into the second insertion hole of the handle 3 and the other end of which is inserted into the second through hole of the contact holder 6.

The contact assembly, as shown in fig. 3-5, includes a contact support 6, a movable contact 7, a first biasing member, and a stationary contact 8.

The contact support 6 is rotatably installed on the base 1, and comprises a support main plate 61 and two support side plates 62 which are respectively arranged on two sides of the support main plate 61 and are perpendicular to the support main plate, wherein the support side plates 62 are provided with first through holes for the first rotating shaft 11 to penetrate through and second through holes for the second connecting rod 5 to penetrate through, a support plate 64 is further arranged at the front end of each support side plate 62, and a first stop block 66 is arranged at the rear end of each support side plate.

The movable contact 7 is connected with the contact support 6 through a second rotating shaft 63 arranged on the support side plate 62, the movable contact 7 comprises a contact main plate 71 which is vertically abutted against the support plate 64, and two contact side plates 72 which are respectively arranged on two sides of the contact main plate 71 and are perpendicular to the contact main plate, one of the contact side plates 72 is positioned on the outer side of the support side plate, and a third through hole for the second rotating shaft 63 to penetrate is formed in the contact side plate 72.

And a first biasing member having one end abutting against the contact holder 6 and the other end abutting against the movable contact 7, the first biasing member applying a biasing force to the contact main plate 71 so as to be in press-contact engagement with the support plate 64. In this embodiment, the first biasing member is a first torsion spring 65 sleeved on the second rotating shaft 63, one end of the first torsion spring 65 abuts against the first stopper 66 at the rear end of the bracket side plate 62, and the other end abuts against the groove on the contact main plate 71.

And the fixed contact 8 is arranged opposite to the movable contact 7, as shown in fig. 7, the widths of the movable contact 7 and the fixed contact 8 are both greater than 1/2 of the width of the base 1.

The utility model discloses a switching fuse's operating device's theory of operation as follows:

during closing, the button 2 moves towards the right side, the inner wall of the left side of the long groove 21 abuts against the first connecting rod 4, the handle 3 is driven to rotate clockwise around the first rotating shaft 11 through the first connecting rod 4, and then the contact support 6 is driven to rotate clockwise around the third rotating shaft 13 through the second connecting rod 5, so that the moving contact 7 and the static contact 8 are driven to be communicated in a contact mode.

The utility model provides an operating device of switch fuse, include and set gradually button 2 on base 1 from a left side to the right side, handle 3 and contact assembly, install on base 1 button 2 slidable, handle 3 rotationally installs on base 1, and link to each other with button 2 and contact assembly through first connecting rod 4 and second connecting rod 5 respectively, button 2 when controlling, drive the handle through first connecting rod 4 and rotate, and then drive contact carrier action of contact assembly through second connecting rod 5, make the movable contact, static contact intercommunication or disconnection, realize separating brake and combined floodgate action, above-mentioned operating device arranges along the length direction of base, vertical occupation space is little, be applicable to and use in narrow space.

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. An operating mechanism of a switch fuse is characterized by comprising a button (2), a handle (3) and a contact assembly which are sequentially arranged on a base (1) from left to right;

a button (2) slidably mounted on the base (1);

the handle (3) is rotatably arranged on the base (1), the handle (3) is respectively connected with the button (2) and the contact component through a first connecting rod (4) and a second connecting rod (5), and the handle (3) is driven by the button (2) to rotate so as to drive the contact support (6) of the contact component to rotate;

the contact assembly comprises a contact support (6) rotatably arranged on the base (1), a moving contact (7) linked with the contact support (6), and a static contact (8) arranged opposite to the moving contact (7).

2. An operating mechanism of a switch fuse as claimed in claim 1, wherein the contact support (6) is rotatably connected to the base (1) via a first rotating shaft (11), and comprises a support main plate (61) and two support side plates (62) respectively disposed at two sides of the support main plate (61) and perpendicular to the support main plate, the support side plates (62) are provided with a first through hole formed at the lower part for the first rotating shaft (11) to penetrate through, and a second through hole formed at the upper part for one end of the second connecting rod (5) to penetrate through.

3. An operating mechanism of a switching fuse as claimed in claim 2, characterised in that said movable contact (7) is connected to said contact support (6) by means of a second pivot (63) provided on said support side plate (62) and is arranged in association with said contact support (6) by means of a coupling structure.

4. A switch fuse operating mechanism according to claim 3, wherein the movable contact (7) comprises a contact main plate (71) and two contact side plates (72) respectively disposed at two sides of the contact main plate (71) and perpendicular to the contact main plate, and a third through hole for the second rotating shaft (63) to pass through is formed in the contact side plates (72).

5. A switch fuse operating mechanism as claimed in claim 4, characterised in that at least one of said contact side plates (72) is located outside the carrier side plate (62).

6. An operating mechanism for a switching fuse according to claim 5, characterised in that the engaging structure comprises:

a support plate (64) which is provided at the front end of the bracket side plate (62) and extends to the lower side of the contact main plate (71);

and one end of the first biasing member abuts against the contact support (6), and the other end of the first biasing member abuts against the movable contact (7), and the first biasing member applies a biasing force to the contact main plate (71) so that the contact main plate is in press fit with the support plate (64).

7. An operating mechanism of a switch fuse according to claim 6, characterized in that the first biasing member is a first torsion spring (65) sleeved on the second rotating shaft (63), one end of the first torsion spring (65) is abutted against the side plate of the bracket, and the other end is abutted against the main contact plate (71).

8. An operating mechanism of a switching fuse according to any of the claims 1-7, characterized in that the width of the movable contact (7) and the stationary contact (8) is greater than 1/2 of the width of the base (1).

9. An operating mechanism of a switch fuse as claimed in claim 7, further comprising a second biasing member for driving the operating mechanism to return, wherein the second biasing member is a second torsion spring (32) sleeved on the lower cylinder (31) of the handle (3), one end of the second torsion spring (32) abuts against a driving block (33) on the upper portion of the handle (3), and the other end abuts against a second stopper (12) on the base (1).

10. An operating mechanism of a switch fuse according to any one of claims 1, 2, 3, 4, 5, 6, 7 and 9, characterized in that the handle (3) is rotatably connected with the base (1) through a third rotating shaft (13), a first insertion hole for inserting the first connecting rod (4), a second insertion hole for inserting the second connecting rod (5) and a third insertion hole for inserting the third rotating shaft (13) are formed on the handle (3), and the first insertion hole, the second insertion hole and the third insertion hole are distributed in a triangular shape.