CN210041086U

CN210041086U - Drawer type circuit breaker

Info

Publication number: CN210041086U
Application number: CN201920967554.7U
Authority: CN
Inventors: 赵坤; 边玉兴
Original assignee: Cheng Shuo Electric Co Ltd
Current assignee: Cheng Shuo Electric Co Ltd
Priority date: 2019-06-26
Filing date: 2019-06-26
Publication date: 2020-02-07
Anticipated expiration: 2029-06-26

Abstract

The utility model discloses a drawer type circuit breaker, which comprises a drawer seat and a circuit breaker body, wherein the bottom of the inner wall of the drawer seat is fixedly provided with a lifting device, the top of the lifting device is fixedly connected with a lifting base, two sides of the top of the lifting base are respectively connected with two sides of the bottom of the circuit breaker body in a sliding way through slide rails, one end of the drawer seat is provided with an opening arranged corresponding to the circuit breaker body, the drawer type circuit breaker of the utility model pulls a central shaft through a knob, a rectangular column is separated from a lock sleeve and then rotates the central shaft, two gear wheels drive two gear racks to move, along with the movement of the two gear racks, four lifting support columns are driven to move up and down, the lifting base is driven to lift, the knob is loosened, the central shaft is reset under the action of a tension spring, the rectangular column is clamped with the lock sleeve, the central shaft is fixed, the function of adjusting the height of the lifting base is realized, and the circuit breaker body is more matched with the drawer seat.

Description

Drawer type circuit breaker

Technical Field

The utility model relates to a circuit breaker, in particular to withdrawable circuit-breaker belongs to electric field.

Background

A withdrawable circuit-breaker is an electrical device widely used in the electrical field, which generally consists of two main parts: the circuit breaker comprises a circuit breaker main body and a drawer seat, wherein the circuit breaker main body plays a role in connecting and breaking normal current and fault current in a loop, and the drawer seat has a function of connecting an external line busbar and the circuit breaker main body. Further, the circuit breaker body may be swung in or out on the frame by a swing-in and swing-out mechanism, such as a rocker mechanism, to make or break an electrical connection between the external line busbar and the circuit breaker body. When for example, need maintenance or change the circuit breaker body, can shake out the circuit breaker body to make things convenient for the customer to operate the circuit breaker body safely, fast under the condition of circuit isolation. In original DW45 circuit breaker drawer seat structure, the user has been using when installation or maintenance and repair, because the major loop current-carrying parts are different, the drawer seat takes place the cross use with different rated current circuit breaker bodies easily, cause the transmission and distribution equipment abnormal heating or burn out the phenomenon, and there is not high degree of agreeing with between circuit breaker main part and the drawer seat, the operation that leads to circuit breaker main part business turn over drawer seat is not smooth and easy, the error appears easily, lead to circuit breaker main part to damage, bring the hidden danger for withdrawable circuit breaker's safe handling.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a withdrawable circuit breaker, because the major loop current-carrying parts is different to solve and propose among the above-mentioned background art, the cross use takes place easily with different rated current circuit breaker bodies in the drawer seat, cause the abnormal heating of power transmission and distribution equipment or burn out the phenomenon, and it is not high to have the degree of agreeing with between circuit breaker main part and the drawer seat, the operation that leads to circuit breaker main part business turn over drawer seat is not smooth and easy, the error appears easily, lead to the circuit breaker main part to damage, the problem of hidden danger is brought for withdrawable circuit breaker's safe handling.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a drawer type circuit breaker, includes drawer seat and circuit breaker body, the bottom fixed mounting of drawer seat inner wall has elevating gear, elevating gear's top fixedly connected with lifting pedestal, the both sides at lifting pedestal top are respectively through the both sides sliding connection of slide rail with circuit breaker body bottom, the opening that corresponds the setting with the circuit breaker body is seted up to the one end of drawer seat, the other end fixed mounting of drawer seat has the terminal that two symmetries set up.

As an optimal technical scheme of the utility model, two four wiring holes have all been seted up to the one end of terminal.

As an optimized technical scheme of the utility model, four corners of lifting pedestal bottom are respectively through the bottom fixed connection of buffer spring with the drawer seat inner wall.

As an optimized technical scheme of the utility model, the fixed limit baffle that is provided with of one end of lifting pedestal bottom.

As a preferred technical scheme of the utility model, elevating gear includes shell, axis, two racks, four hinge poles and four lift pillars, the middle part of shell alternates and is connected with the axis, the both ends on axis surface are the fixed gear that is provided with all, two the bottom of gear all is connected with the top meshing of rack, two the both ends of rack one side respectively with four the one end of hinge pole is rotated and is connected, four the other end of hinge pole rotates with the bottom of four lift pillars respectively and is connected, four the top that the shell was passed on the top of lift pillar and the bottom fixed connection of lift base.

As a preferred technical scheme of the utility model, the fixed rectangle post that is provided with in centraxonial middle part, the surface cover of rectangle post is equipped with the lock sleeve, the bottom of lock sleeve and the bottom fixed connection of shell inner wall, the one end fixed connection of pulling spring and shell inner wall is passed through to centraxonial one end, the centraxonial other end passes the one end fixed connection of one side and the knob of the other end of shell inner wall and drawer seat in proper order.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a drawer type circuit breaker, through knob pull axis, make the rectangle post break away from rotatory axis behind the lock sleeve, drive two rack removals through two gears, along with the removal of two racks, drive four lift pillar up-and-down motion, it goes up and down to drive the lifting pedestal, loosen the knob, under tension spring's effect, the axis resets, rectangle post and lock sleeve card with, fixed axis, thereby fix four lift pillar's position, make the rigidity of lifting pedestal, realize the function of the height of adjustment lifting pedestal, make circuit breaker body agree with more with the drawer seat.

Drawings

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

fig. 2 is a schematic side view of the present invention;

fig. 3 is a schematic view of the internal structure of the drawer base of the present invention;

fig. 4 is a schematic structural view of the lifting device of the present invention;

fig. 5 is a schematic structural view of an interface surface of the binding post of the present invention;

fig. 6 is a schematic view of the internal structure of the lifting device of the present invention.

In the figure: 1. a drawer base; 2. a circuit breaker body; 3. a knob; 4. a binding post; 5. a slide rail; 6. a lifting base; 7. a lifting device; 8. a buffer spring; 9. a lifting column; 10. a rectangular column; 11. a gear; 12. a twisting rod; 13. a tension spring; 14. a rack; 15. a middle shaft; 16. a lock sleeve; 17. and a wiring hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

Please refer to fig. 1-6, the utility model provides a withdrawable circuit breaker, including drawer seat 1 and circuit breaker body 2, the bottom fixed mounting of drawer seat 1 inner wall has elevating gear 7, elevating gear 7's top fixedly connected with lifting base 6, the both sides at lifting base 6 top are respectively through the both sides sliding connection of slide rail 5 with circuit breaker body 2 bottom, the opening that corresponds the setting with circuit breaker body 2 is seted up to the one end of drawer seat 1, the other end fixed mounting of drawer seat 1 has terminal 4 that two symmetries set up.

Preferably, four wiring holes 17 have all been seted up to the one end of two terminals 4, and circuit breaker body 2 is connected with consumer through four wiring holes 17 of two terminals 4.

Preferably, four corners of the bottom of the lifting base 6 are fixedly connected with the bottom of the inner wall of the drawer seat 1 through the buffer springs 8 respectively, and a buffering effect is achieved.

Preferably, the fixed limit baffle that is provided with of one end in 6 bottoms of lift base prevents that lift base 6 from colliding with the bottom of 1 inner wall of drawer seat, causing the collision damage.

Preferably, the lifting device 7 comprises a housing, a central shaft 15, two racks 14, four hinge rods 12 and four lifting support posts 9, the middle part of shell alternates and is connected with axis 15, the both ends on axis 15 surface are all fixed and are provided with gear 11, the bottom of two gear 11 all is connected with the top meshing of rack 14, the both ends of two rack 14 one sides are rotated with the one end of four hinge rods 12 respectively and are connected, the other end of four hinge rods 12 rotates with the bottom of four lifting support posts 9 respectively and is connected, the top of shell and the bottom fixed connection of lifting base 6 are passed on the top of four lifting support posts 9, axis 15 is rotatory to drive two gear 11 rotatory, two gear 11 drive two racks 14 and remove, two racks 14 support four lifting support posts 9 through four hinge rods 12, along with the removal of two racks 14, drive four lifting support posts 9 up-and-down motion, drive lifting base 6 and go up and down.

Preferably, the middle of the center shaft 15 is fixedly provided with a rectangular column 10, the surface of the rectangular column 10 is sleeved with a lock sleeve 16, the bottom end of the lock sleeve 16 is fixedly connected with the bottom of the inner wall of the shell, one end of the center shaft 15 is fixedly connected with one end of the inner wall of the shell through a tension spring 13, the other end of the center shaft 15 sequentially penetrates through the other end of the inner wall of the shell and one side of the drawer seat 1 to be fixedly connected with one end of the knob 3, the center shaft 15 is pulled by the knob 3, the center shaft 15 is rotated after the rectangular column 10 is separated from the lock sleeve 16, the knob 3 is loosened, the center shaft 15 resets under the action of the tension spring 13, and the rectangular column 10 is clamped.

When in use, the utility model relates to a drawer type circuit breaker, a circuit breaker body 2 enters and exits a drawer seat 1 along a slide rail 5, a lifting base 6 supports the circuit breaker body 2, the middle shaft 15 is pulled by the knob 3, the rectangular column 10 is separated from the lock sleeve 16, then the middle shaft 15 is rotated, the middle shaft 15 is rotated to drive the two gears 11 to rotate, the two gears 11 drive the two racks 14 to move, the two racks 14 support the four lifting support columns 9 through the four hinge rods 12, the four lifting support columns 9 are driven to move up and down along with the movement of the two racks 14, the lifting base 6 is driven to lift, the knob 3 is loosened, under the action of the tension spring 13, the middle shaft 15 is reset, the rectangular column 10 is clamped with the lock sleeve 16 to fix the middle shaft 15, thereby the position of four fixed lifting support 9 makes the rigidity of lifting base 6, realizes the function of adjustment lifting base 6's height, makes circuit breaker body 2 agree with more with drawer seat 1.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a drawer type circuit breaker, includes drawer seat (1) and circuit breaker body (2), its characterized in that, the bottom fixed mounting of drawer seat (1) inner wall has elevating gear (7), the top fixedly connected with lifting base (6) of elevating gear (7), the both sides at lifting base (6) top are respectively through the both sides sliding connection of slide rail (5) with circuit breaker body (2) bottom, the opening that corresponds the setting with circuit breaker body (2) is seted up to the one end of drawer seat (1), the other end fixed mounting of drawer seat (1) has terminal (4) that two symmetries set up.

2. The withdrawable circuit-breaker according to claim 1, characterized in that: four wiring holes (17) are formed in one ends of the two wiring posts (4).

3. The withdrawable circuit-breaker according to claim 1, characterized in that: four corners of the bottom of the lifting base (6) are fixedly connected with the bottom of the inner wall of the drawer seat (1) through buffer springs (8).

4. The withdrawable circuit-breaker according to claim 1, characterized in that: and a limiting baffle is fixedly arranged at one end of the bottom of the lifting base (6).

5. The withdrawable circuit-breaker according to claim 1, characterized in that: the lifting device (7) comprises a shell, a middle shaft (15), two racks (14), four hinge rods (12) and four lifting pillars (9), the middle of the shell is connected with the middle shaft (15) in an inserting mode, gears (11) are fixedly arranged at two ends of the surface of the middle shaft (15), the bottoms of the two gears (11) are meshed with the tops of the racks (14), two ends of one side of each rack (14) are rotatably connected with one ends of the four hinge rods (12), the other ends of the four hinge rods (12) are rotatably connected with the bottom ends of the four lifting pillars (9), and the top ends of the four lifting pillars (9) penetrate through the top of the shell and are fixedly connected with the bottom of the lifting base (6).

6. The withdrawable circuit-breaker according to claim 5, characterized in that: the middle of the middle shaft (15) is fixedly provided with a rectangular column (10), the surface of the rectangular column (10) is sleeved with a lock sleeve (16), the bottom end of the lock sleeve (16) is fixedly connected with the bottom of the inner wall of the shell, one end of the middle shaft (15) is fixedly connected with one end of the inner wall of the shell through a tension spring (13), and the other end of the middle shaft (15) sequentially penetrates through the other end of the inner wall of the shell and one side of the drawer seat (1) to be fixedly connected with one end of the knob (3).