Novel copper-tungsten tulip contact for high-voltage switch

Abstract

The utility model belongs to the technical field of tulip contact installation, and discloses a novel copper-tungsten tulip contact for a high-voltage switch, which comprises baffle plates and a boosting assembly, a connecting shaft is fixedly arranged in the baffle plates, the connecting shaft penetrates through the two baffle plates, the bottom surfaces of the baffle plates are provided with supporting arms, the supporting arms are attached to the bottom surfaces of the baffle plates, and the boosting assembly is arranged on the bottom surfaces of the baffle plates. Sliding grooves are formed in the baffles, sliding shafts are fixedly arranged on the outer sides of the two ends of the supporting arms and slide in the sliding grooves, spring grooves are formed in the outer sides of the supporting arms, opening positions are fixedly arranged at the two ends of the inner sides of the supporting arms, and second springs are detachably arranged on the outer sides of the supporting arms. Compared with a traditional device, the device has the advantages that the structure is simple, installation is convenient, excessive energy does not need to be consumed during installation, therefore, the installation time is shortened, the project progress is improved, and the device has the advantages of being reasonable and compact in structure and not prone to loosening.

Description

Technical Field

[0001] The utility model belongs to the technical field of plum blossom contact installation, in particular to a novel copper-tungsten plum blossom contact for high-voltage switches. Background Art

[0002] The plum blossom contact is used for primary conduction in high-voltage vacuum circuit breakers, center cabinets, trolleys, etc. Its structural features are: non-magnetic stainless steel bracket electrolytic polishing, non-magnetic stainless steel annular tension spring bundling, contact piece is T2 copper plate precision stamping, surface thick silver plating, anti-discoloration treatment after long-term discoloration, beautiful appearance, the plum blossom contact adopts spring outer wrapping to clamp the main current-carrying contact finger on the conductor, so it has the advantages of compact structure and good reliability.

[0003] At the same time, the patent specification with publication number CN 216212936 U discloses a plum blossom contact, including a positioning ring, a base and a plurality of contact pieces. The outer circumferential surface of the positioning ring is circumferentially evenly provided with a plurality of first card grooves that cooperate and plug with the front inner side of the contact pieces. The outer circumferential surface of the base is provided with an annular groove that cooperates and plugs with the rear end inner sides of the plurality of contact pieces at the same time. The positioning ring and the base are both arranged at the center position surrounded by the plurality of contact pieces, and the outer hoops of the plurality of contact pieces are provided with springs.

[0004] However, in the implementation of relevant technologies, it was found that the above-mentioned plum blossom contact device has the following problems: due to its structural characteristics, it is extremely laborious to install, and the workers need to expend a lot of energy when installing the plum blossom contacts, which delays the progress of the overall project. In addition, the traditional plum blossom contact structure is loose, and if you are not careful during disassembly, the contacts will fall apart.

[0005] Therefore, in order to solve the above problems, a new type of copper-tungsten plum blossom contact for high-voltage switch is proposed. Utility Model Content

[0006] In order to solve the problems raised in the above background technology, the utility model provides a new type of copper tungsten plum blossom contact for high-voltage switches, which has a simple structure and is easy to install. It does not require too much energy during installation, thereby shortening the installation time and improving the project progress. Compared with traditional plum blossom contacts, this device has the advantages of reasonable and compact structure and is not easy to loosen.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of copper tungsten plum blossom contact for high-voltage switches, including a baffle and a booster assembly, a connecting shaft is fixedly arranged inside the baffle, and the connecting shaft passes through two baffles, a support arm is arranged on the bottom surface of the baffle, and the support arm is fitted with the bottom surface of the baffle, a sliding groove is provided inside the baffle, sliding shafts are fixedly arranged on the outer sides of both ends of the support arm, and the sliding shaft slides inside the sliding groove, a spring groove is provided on the outer side of the support arm, and opening positions are fixedly arranged on both ends of the inner side of the support arm, a second spring is detachably arranged on the outer side of the support arm, and the second spring is fitted with the spring groove, spring buckles are fixedly arranged on both ends of the second spring, and the spring buckles at both ends are buckled.

[0008] Preferably, the opening is fitted with the outer side of the high voltage switch, and the support arm is made of copper tungsten.

[0009] Preferably, the boosting assembly includes a pushing foot arranged on the top surface of the baffle, and the pushing foot is in contact with the top surface of the baffle, and the internal thread of the pushing foot is connected to the pushing shaft.

[0010] Preferably, a first spring is sleeved on the outer side of the pushing shaft, and a button is fixedly arranged on the top of the pushing shaft.

[0011] Preferably, a sleeve is slidably provided on the outer side of the driving shaft, and a fixing sleeve is fixedly provided inside the sleeve.

[0012] Preferably, an obstruction plate is fixedly provided at the middle of the driving shaft, and the obstruction plate is fitted with the inside of the outer sleeve.

[0013] Preferably, the top of the first spring is in contact with the blocking plate, and the bottom of the first spring is in contact with the fixing sleeve.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model realizes quick disassembly by sliding the sliding shaft on the outer side of the support arm in the sliding groove in the baffle plate and adjusting the tightness of the device through the second spring, and finally moving the second spring to the position of different spring grooves, thereby achieving a simple structure, convenient installation, and overall reduction in installation time, thereby accelerating the progress of the project, and realizing the characteristics of reasonable and compact structure and not easy to loosen. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a new type of copper-tungsten plum blossom contact for high-voltage switches proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the booster assembly proposed in the utility model;

[0018] Figure 3 This is a schematic diagram of the overall structure of the plum blossom contact proposed in the utility model;

[0019] Figure 4 This is a schematic diagram of the support arm structure proposed by the utility model;

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of the baffle proposed by the utility model.

[0021] In the figure: 1, booster assembly; 11, button; 12, push shaft; 13, push foot; 14, outer cover; 15, blocking plate; 16, fixing sleeve; 17, first spring;

[0022] 2. baffle; 21. sliding groove;

[0023] 3. Support arm; 31. Spring slot; 32. Sliding shaft; 33. Opening position;

[0024] 4. Connecting shaft;

[0025] 5. Second spring; 51. Spring buckle. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figures 1 to 5 As shown, the utility model provides a novel copper tungsten plum blossom contact for a high-voltage switch, comprising a baffle 2 and a booster assembly 1, a connecting shaft 4 is fixedly arranged inside the baffle 2, and the connecting shaft 4 passes through the two baffles 2, a supporting arm 3 is arranged on the bottom surface of the baffle 2, and the supporting arm 3 is fitted with the bottom surface of the baffle 2, a sliding groove 21 is provided inside the baffle 2, sliding shafts 32 are fixedly arranged on the outer sides of both ends of the supporting arm 3, and the sliding shaft 32 slides inside the sliding groove 21, a spring groove 31 is provided on the outer side of the supporting arm 3, and opening positions 33 are fixedly arranged on the inner two ends of the supporting arm 3, a second spring 5 is detachably arranged on the outer side of the supporting arm 3, and the second spring 5 is fitted with the spring groove 31, spring buckles 51 are fixedly arranged at both ends of the second spring 5, and the spring buckles 51 at both ends are buckled, and the sliding shaft 32 slides inside the sliding groove 21, which can fix the supporting arm 3 to maintain the stability of the overall structure, increase flexibility, and facilitate subsequent installation and disassembly.

[0028] Specifically, the opening 33 is fitted with the outer side of the high voltage switch, and the support arm 3 is made of copper tungsten, which is an alloy of tungsten and copper, and has good electrical and thermal conductivity, good high temperature strength and certain plasticity.

[0029] Furthermore, the booster assembly 1 includes a push pin 13 arranged on the top surface of the baffle 2, and the push pin 13 is in contact with the top surface of the baffle 2. The internal thread of the push pin 13 is connected to the push shaft 12. When installing plum blossom contacts of different specifications, the push pins 13 of different lengths can be replaced to adapt to plum blossom contacts of different diameters.

[0030] Furthermore, a first spring 17 is sleeved on the outer side of the pushing shaft 12 , and a button 11 is fixedly provided on the top of the pushing shaft 12 , and pushing the button 11 drives the pushing shaft 12 .

[0031] It is worth noting that a sleeve 14 is slidably provided on the outer side of the driving shaft 12, and a fixing sleeve 16 is fixedly provided inside the sleeve 14. The sleeve 14 is sleeved on the outside of the plum blossom contact to facilitate the application of force during installation and maintain stability.

[0032] It is worth noting that a blocking plate 15 is fixedly provided in the middle of the driving shaft 12 , and the blocking plate 15 is in contact with the inside of the outer sleeve 14 , and the blocking plate 15 is used to compress the first spring 17 .

[0033] It is worth mentioning that the top of the first spring 17 is in contact with the blocking plate 15 , and the bottom of the first spring 17 is in contact with the fixing sleeve 16 . The fixing sleeve 16 provides rebound force energy storage when the first spring 17 is squeezed.

[0034] Among them, the annular spring 5 is a prior art and will not be described in detail. At the same time, the utility model also includes a power supply, a controller and a switch, which are not the main technical points of this patent and will not be described in detail. The "front, back, left and right" perspectives of the device are as follows: Figure 1 The direction shown in the figure is used as the reference.

[0035] Working principle and process:

[0036] A novel copper-tungsten plum blossom contact for high-voltage switches is a primary conductive device for high-voltage vacuum circuit breakers. When installing the plum blossom contact, first install the booster assembly 1 to the top surface of the baffle 2, then hold the outer side of the jacket 14 with your palm, and then press the button 11 with your other palm, and squeeze the push shaft 12 through the button 11 to drive the push foot 13 to move, and the push foot 13 pushes the plum blossom contact as a whole. After the plum blossom contact is stressed, the opening position 33 is stuck in the installation position at the high-voltage switch, thereby completing the installation. After the installation is completed, the push shaft 12 will be subjected to the rebound force of the first spring 17 squeezed on the fixed sleeve 16 to achieve a reset effect, and the obstruction plate 15 fixedly connected to the push shaft 12 at the top of the first spring 17 plays a limiting role to prevent the rebound force of the first spring 17 from being too large, so that the push shaft 12 is ejected from the jacket 14 and the fixed sleeve 16 is fixed. It is arranged inside the outer sleeve 14, and the push shaft 12 is threadedly connected with the push foot 13. When installing plum blossom contacts of different specifications, the push foot 13 can be replaced to adapt to plum blossom contacts of different specifications. The connecting shaft 4 passes through the upper and lower baffles 2, and at the same time plays a role in fixing the upper and lower baffles 2. A sliding groove 21 is opened inside the baffle 2. At the same time, a sliding shaft 32 fixedly arranged on the top of the support arm 3 slides inside the sliding groove 21, which can not only fix the support arm 3 to maintain the stability of the overall structure, but also increase the flexibility, which is convenient for subsequent installation and disassembly. During disassembly, the second spring 5 can be moved to the spring groove 31 at different positions to adjust the tightness of the support arm 3 to facilitate subsequent disassembly. At the same time, spring buckles 51 are arranged at both ends of the second spring 5, and the second springs 5 ​​with different elastic forces can also be replaced to adjust the overall tightness of the plum blossom contact.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel copper-tungsten plum blossom contact for a high-voltage switch, comprising a baffle (2) and a booster assembly (1), characterized in that: A connecting shaft (4) is fixedly arranged inside the baffle (2), and the connecting shaft (4) passes through the upper and lower baffles (2); a support arm (3) is arranged on the bottom surface of the baffle (2), and the support arm (3) is fitted with the bottom surface of the baffle (2); a sliding groove (21) is provided inside the baffle (2); sliding shafts (32) are fixedly arranged on the outer sides of both ends of the support arm (3), and the sliding shafts (32) slide inside the sliding groove (21); a spring groove (31) is provided on the outer side of the support arm (3), and opening positions (33) are fixedly arranged on both ends of the inner side of the support arm (3); a second spring (5) is detachably arranged on the outer side of the support arm (3), and the second spring (5) is fitted with the spring groove (31); spring buckles (51) are fixedly arranged on both ends of the second spring (5), and the spring buckles (51) at both ends are buckled.

2. According to claim 1, a new type of copper tungsten plum blossom contact for high voltage switch, characterized in that: The opening (33) fits against the outer side of the high-voltage switch, and the support arm (3) is made of copper tungsten.

3. The novel copper-tungsten plum blossom contact for high-voltage switch according to claim 1 is characterized in that: The boosting assembly (1) comprises a pushing foot (13) arranged on the top surface of the baffle (2), and the pushing foot (13) is in contact with the top surface of the baffle (2), and the internal thread of the pushing foot (13) is connected to the pushing shaft (12).

4. The novel copper-tungsten plum blossom contact for high-voltage switch according to claim 3 is characterized in that: A first spring (17) is sleeved on the outer side of the pushing shaft (12), and a button (11) is fixedly arranged on the top of the pushing shaft (12).

5. The novel copper-tungsten plum blossom contact for high-voltage switch according to claim 3 is characterized in that: An outer sleeve (14) is slidably provided on the outer side of the driving shaft (12), and a fixing sleeve (16) is fixedly provided inside the outer sleeve (14).

6. The novel copper-tungsten plum blossom contact for high-voltage switch according to claim 3 is characterized in that: An obstruction plate (15) is fixedly disposed in the middle of the driving shaft (12), and the obstruction plate (15) fits in the interior of the outer sleeve (14).

7. The novel copper-tungsten plum blossom contact for high-voltage switch according to claim 4 is characterized in that: The top of the first spring (17) is in contact with the obstruction plate (15), and the bottom of the first spring (17) is in contact with the fixing sleeve (16).

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