CN218447691U - Box-shared quick grounding switch - Google Patents

Abstract

The utility model relates to a total case type quick ground switch, including casing and the three contact assemblies that set up side by side that are located the casing inside, the both ends rigid coupling of casing has the basin formula insulator, and the rigid coupling has three electrically conductive inserts that are triangle-shaped and arrange on the basin formula insulator, and three electrically conductive inserts are connected with three contact assembly through special-shaped conductor respectively, the rigid coupling has three movable contact bases that correspond with the contact assembly in the casing, and movable contact base is connected with the ground terminal of installing on the casing through the ground connection row, the sliding connection has the ground moving contact in the movable contact base, still includes the transmission system that drives three ground moving contact synchronous insertion contact assembly, the utility model discloses satisfy booth apart width and phase interval requirement; the opening and closing synchronism is superior to that of a box opening structure; the inter-phase transmission part and the transmission case of the box-separating quick grounding switch are not provided, the cost is low, the size is small, the number of sealing links is small, the structure is simple, the number of assembling links is reduced, the assembling process is good, and the reliability is high.

Description

Box-shared quick grounding switch

Technical Field

The utility model relates to an earthing switch field specifically indicates a quick earthing switch of total case type.

Background

The quick grounding switch has the capability of switching on and off short-circuit current, and has the following functions as a component part of the GIS: (1) The open-close parallel overhead lines generate inductive current due to capacitive current and electromagnetic induction generated by electrostatic induction. (2) When the insulator in the shell has creepage or the shell is in arcing, the main circuit is quickly grounded by the quick grounding switch, and the fault current is cut off by the breaker.

When carrying out the GIS design, need to synthesize interval width, looks interval, synchronism, arrangement mode and cost optimization of considering, most earthing switch is for dividing box at present, and the alternate transmission part that passes through realizes connecting with the transmission case, for example authorizes utility model that publication number is CN202167403U to disclose a three-phase divides case combined electrical apparatus to keep apart earthing switch's transmission.

Therefore, a common-box type quick grounding switch is absent at present, and a transmission part and a transmission box can be integrated in a box body, so that the advantages of small size, simple structure and good assembly process are achieved.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art's not enough, provide a total case type quick earthing switch.

The utility model discloses a following technical scheme realizes, provides a quick earthing switch of total case type, the three contact assembly that sets up side by side including the casing and be located the casing inside, the both ends rigid coupling of casing has the basin formula insulator, and the rigid coupling has the three electrically conductive inserts that are triangle-shaped and arrange on the basin formula insulator, and three electrically conductive inserts is respectively through special-shaped conductor and three contact assembly connection, the rigid coupling has the three movable contact seat that corresponds with the contact assembly in the casing, and the movable contact seat passes through the ground connection row and is connected with the ground terminal of installing on the casing, the sliding connection has the ground connection moving contact in the movable contact seat, still includes the transmission system that drives three ground connection moving contact synchronous insertion contact assembly.

The special-shaped conductor in the scheme converts the triangular arrangement of the conductive insert on the basin-shaped insulator into the linear arrangement on the same horizontal plane, and realizes the synchronous insertion of three grounding moving contacts into the contact seat assembly through the transmission system, thereby achieving the function of driving three same time divisions and closing by using the transmission system.

Preferably, the transmission system comprises a shaft assembly which is coupled in the shell and three inner crank arms which are fixedly connected to the shaft assembly, the shaft assembly is driven to rotate by a mechanism, one ends of the inner crank arms, far away from the shaft assembly, are provided with driving forks, and two sides of the grounding moving contact are provided with driving fork grooves into which the driving forks can be inserted. The mechanism drives the shaft to rotate in an assembling way, so that the three inner crank arms are driven to swing, the driving fork is inserted into the driving fork groove, and the grounding moving contact is driven to move.

Preferably, the transmission system further comprises an upper sealing plate fixedly connected to the housing and three guide rods fixedly connected to the upper sealing plate, and the grounding moving contact is sleeved on the guide rods. The guide rod plays a role in guiding.

Preferably, an insulating plate is fixedly connected in the shell, and the movable contact base is arranged on the insulating plate. The movable contact base is arranged on the insulating plate, and the insulating plate plays a role in fixing and insulating, so that the three-phase grounding movable contact bases are assembled on the same horizontal plane.

As optimization, the contact base assembly includes contact base and the little contact base of rigid coupling in contact base middle part, the both ends of contact base are connected with the dysmorphism conductor of two electrically conductive inserts respectively, be equipped with the plum blossom contact on the little contact base and be located the arc contact at plum blossom contact center, arc contact tip extends outside the plum blossom contact. In the scheme, the arc contact plays a role in arc striking, the problem that the test fails due to the fact that the closing Shi Dianhu is shifted to the contact seat is prevented, and the plum blossom contact plays a through-flow role after closing.

Preferably, the contact seat assembly is positioned between the two basin-type insulators, and the movable contact seat is positioned above the contact seat assembly. The movable contact base is arranged above the contact base assembly in the scheme, so that the structure is compact.

The utility model has the advantages that: the utility model discloses a total-box type quick grounding switch, which meets the requirements of small spacing width and interval; the opening and closing synchronism is superior to that of a box opening structure; the inter-phase transmission part and the transmission case of the box-separating quick grounding switch are not provided, so that the cost is low, the size is small, the number of sealing links is small, the structure is simple, the assembly links are reduced, the assembly process is good, and the reliability is high; all sealing surfaces adopt a double-sealing structure and have good sealing performance.

Drawings

FIG. 1 is a schematic view of the internal structure of the present invention;

fig. 2 is a schematic view of the contact assembly structure of the present invention;

FIG. 3 is a schematic view of the external structure of the present invention;

FIG. 4 is a schematic view of the transmission system of the present invention;

shown in the figure:

1. a housing; 2. a basin-type insulator; 3. a mechanism; 4. a conductive insert; 5. an upper sealing plate; 6. a guide bar; 7. a ground terminal; 8. a transmission system; 9. a specially-shaped conductor; 10. assembling a contact seat; 11. a contact seat; 12. an arcing contact; 13. a tulip contact; 14. a conductive spring; 15. a guide ring; 16. a small contact seat; 17. a ground bar; 18. an insulating plate; 19. a movable contact base; 20. a grounding moving contact; 21. assembling a shaft; 22. an inner crank arm.

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.

As shown in 1~4, the utility model discloses a total-box type quick grounding switch, including casing 1 and the three contact assembly 10 that sets up side by side that is located casing 1 inside, it has a plurality of openings to open on casing 1, and different functional components are installed respectively to every opening.

The both ends rigid coupling of casing 1 has basin formula insulator 2, it is located between two basin formula insulators 2 to touch seat assembly 10, and the rigid coupling has three electrically conductive inserts 4 that are triangle-shaped and arrange on basin formula insulator 2, and three electrically conductive inserts 4 are located same plane, and a style of calligraphy is arranged in the intermediate position of casing inner chamber, and three electrically conductive inserts 4 are connected with three seat assembly 10 that touches through special-shaped conductor 9 respectively, and special-shaped conductor 9 arranges the style of calligraphy that turns into on the same horizontal plane with electrically conductive inserts 4 on the basin formula insulator and arranges, and this horizontal plane is located the intermediate position of basin formula insulator direction of height.

The contact seat assembly 10 comprises a contact seat 11 and a small contact seat 16 fixedly connected to the middle of the contact seat 11, two ends of the contact seat 11 are respectively connected with the special-shaped conductors 9 of the two conductive inserts 4, and the end of the contact seat 11 is provided with a conductive spring 14 and a guide ring 15 to conduct with the special-shaped conductors 9.

The utility model discloses a contact device, including contact seat 11, little contact seat 16, arc contact 12, the contact seat 13 is equipped with plum blossom contact 13 on the little contact seat 16 and is located plum blossom contact 13 center, arc contact 12 tip extends to outside plum blossom contact 13, and plum blossom contact 13 opening is up in this embodiment, and arc contact 12 is higher than contact seat 11 and plays the effect of striking, prevents to close the electric arc drift to contact seat 11 when closing and leads to experimental failure on, and plum blossom contact 13 plays the through-flow effect after closing a floodgate.

Three movable contact seats 19 corresponding to the contact seat assemblies 10 are fixedly connected in the shell 1, the movable contact seats 19 are positioned above the contact seat assemblies 10, and the three movable contact seats 19 correspond to the three contact seat assemblies 10 one by one. An insulating plate 18 is fixedly connected in the shell 1, the movable contact base 19 is arranged on the insulating plate 18, and the insulating plate 18 plays a role in fixing and insulating. The insulating board is installed on the shell to make the three-phase moving contact base 19 assembled on the same horizontal plane, so as to achieve the function of using only one mechanism to drive the three-phase transmission system to switch on and off at the same time.

The movable contact base 19 is connected with the grounding terminal 7 installed on the shell 1 through the grounding bar 17, the grounding bar 17 is connected with the grounding terminal 7 for grounding, and the grounding system is independently grounded and is not grounded by the shell.

The moving contact base 19 is connected with a grounding moving contact 20 in a sliding manner, the grounding moving contact 20 slides vertically, and the grounding moving contact further comprises a transmission system 8 for driving the three grounding moving contacts 20 to be synchronously inserted into the contact base assembly 10.

The transmission system 8 comprises a shaft assembly 21 coupled in the housing 1 and three inner crank arms 22 fixedly connected to the shaft assembly 21, the shaft assembly 21 is driven to rotate by the mechanism 3, a driving fork is arranged at one end of each inner crank arm 22 far away from the shaft assembly 21, and driving fork grooves into which the driving forks can be inserted are formed in two sides of the grounding moving contact 20.

The transmission system 8 is integrated in the shell 1 together, shares a mechanism, is connected by the connecting rod assembly 4, has no transmission case, is small in size, less in sealing links, good in sealing property, simple in structure, good in assembly process and high in reliability, and adopts a double-sealing structure.

The transmission system 8 further includes an upper sealing plate 5 fixedly connected to the housing 1 and three guide rods 6 fixedly connected to the upper sealing plate 5, and the grounding moving contact 20 is sleeved on the guide rods 6. The guide rod 6 is arranged on the inner side of the upper sealing plate 5 and is arranged in a three-phase linear shape, and the lower end of the guide rod 6 is inserted into the grounding moving contact 20 to play a role in guiding.

Of course, the above description is not limited to the above examples, and the technical features of the present invention that are not described in the present application can be implemented by or using the prior art, which is 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 (6)

1. The utility model provides a quick earthing switch of case type altogether which characterized in that: including casing (1) and be located inside three contact assembly (10) that set up side by side of casing (1), the both ends rigid coupling of casing (1) has basin formula insulator (2), and the rigid coupling has three electrically conductive inserts (4) that are the triangle-shaped and arrange on basin formula insulator (2), and three electrically conductive inserts (4) are connected with three contact assembly (10) through special-shaped conductor (9) respectively, the rigid coupling has three movable contact seat (19) that correspond with contact assembly (10) in casing (1), and movable contact seat (19) are connected with ground terminal (7) of installing on casing (1) through ground connection row (17), sliding connection has ground connection moving contact (20) in movable contact seat (19), still including drive three ground connection moving contact (20) synchronous insertion contact assembly (10) transmission system (8).

2. A common-box type fast grounding switch according to claim 1, characterized in that: the transmission system (8) comprises a shaft assembly (21) which is coupled in the shell (1) in a shaft mode and three inner crank arms (22) which are fixedly connected to the shaft assembly (21), the shaft assembly (21) is driven to rotate through the mechanism (3), one ends, far away from the shaft assembly (21), of the inner crank arms (22) are provided with driving forks, and driving fork grooves into which the driving forks are inserted are formed in two sides of the grounding moving contact (20).

3. A common-box type fast grounding switch according to claim 2, wherein: the transmission system (8) further comprises an upper sealing plate (5) fixedly connected to the shell (1) and three guide rods (6) fixedly connected to the upper sealing plate (5), and the grounding moving contact (20) is sleeved on the guide rods (6).

4. A common-box type fast grounding switch according to claim 1, characterized in that: an insulating plate (18) is fixedly connected in the shell (1), and the moving contact seat (19) is arranged on the insulating plate (18).

5. A common-box type fast grounding switch according to claim 1, characterized in that: contact seat assembly (10) are including contact seat (11) and little contact seat (16) of rigid coupling in contact seat (11) middle part, the both ends of contact seat (11) are connected with special-shaped conductor (9) of two conductive inserts (4) respectively, be equipped with plum blossom contact (13) on little contact seat (16) and be located arc contact (12) at plum blossom contact (13) center, arc contact (12) tip extends outside plum blossom contact (13).

6. A common-box type fast grounding switch according to claim 1, characterized in that: the contact base assembly (10) is positioned between the two basin-type insulators (2), and the movable contact base (19) is positioned above the contact base assembly (10).

Images