Plum blossom contact convenient to disassemble and assemble

Abstract

The utility model discloses a tulip contact convenient to disassemble and assemble, and belongs to the technical field of circuit breaker equipment. Comprising an upper grid piece, a lower grid piece is arranged on the side wall of the upper grid piece, moving assemblies are arranged on the side walls of the two ends of the lower grid piece, a plurality of clamping grooves are formed in the circumferential outer walls of the upper grid piece and the lower grid piece, contact piece assemblies are arranged in the clamping grooves, and springs are arranged on the outer walls of the contact piece assemblies. According to the utility model, the contact piece assemblies are clamped through the clamping grooves, the spring is sleeved on the outer walls of the plurality of contact piece assemblies, the knob is screwed to drive the worm to rotate so as to drive the worm gear to rotate, then the lead screw drives the slide block to move outwards, the spring is tightened so as to fix the tulip contact, and when disassembly and maintenance are needed, the knob is screwed in the reverse direction to enable the lower grid piece to contract inwards. The plum blossom contact is convenient to disassemble and assemble and is safer, and the stability of the plum blossom contact is improved through the contact piece assembly. The device is compact and reasonable in structural design, convenient to disassemble and assemble, not prone to damage and high in stability.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breaker equipment, and more specifically, to a plum blossom contact which is convenient for disassembly and assembly. Background Technique

[0002] A plum blossom contact is an electrical contact piece commonly used in high-voltage transmission lines, and its main function is to achieve reliable connection between power supply devices. The principle of the plum blossom contact is based on the physical properties of metal conductors. By increasing the contact area, the contact resistance is reduced to ensure the efficiency and stability of power transmission. It is commonly used for primary conduction in high-voltage vacuum circuit breakers, medium-mounted cabinets, hand trucks, etc.

[0003] The patent document with the publication number of CN220796577U in the prior art provides a plum blossom contact for a circuit breaker. In this device, a plurality of first contact piece grooves and fixing grooves with the same specifications and shapes are arranged on the upper annular grid piece, and a second contact piece groove is arranged on the lower annular grid piece. By arranging through threaded holes on the side end faces of the convex head and the contact piece and connecting them through arc-shaped screws and shock pads, the effect of firmly connecting the contact piece with the upper annular grid piece is achieved, avoiding the problem of contact detachment during the use of the plum blossom contact.

[0004] Although this device has many beneficial effects, there are still the following problems: during the use of this device, it is necessary to pry open the spring to carry out maintenance or replacement, which is likely to cause damage to the plum blossom contact and increase the risk at the same time; secondly, the stability of this device during use is not high enough and needs to be improved. In view of this, we propose a plum blossom contact which is convenient for disassembly and assembly. Content of the Utility Model

[0005] 1. Technical Problems to be Solved

[0006] The purpose of the utility model is to provide a plum blossom contact which is convenient for disassembly and assembly, so as to solve the problems of easy damage, high risk and insufficient stability during disassembly and assembly mentioned in the above background technique.

[0007] 2. Technical Solution

[0008] A plum blossom contact which is convenient for disassembly and assembly includes an upper grid piece. A lower grid piece is arranged on the side wall of the upper grid piece. Moving components are arranged on the side walls at both ends of the lower grid piece. The moving component includes a connecting plate. A chute is arranged at the top of the connecting plate. A lead screw is rotatably connected inside the chute. A worm gear is arranged on the circumferential outer wall of one end of the lead screw. A worm is meshed with one side of the worm gear. A knob is arranged at the top of the worm. A slider is threadedly connected to the circumferential outer wall of the lead screw. A plurality of clamping grooves are arranged on the circumferential outer walls of the upper grid piece and the lower grid piece. Contact piece components are arranged in a plurality of the clamping grooves. Springs are arranged on the outer walls of the plurality of contact piece components.

[0009] Preferably, the contact piece assembly includes a contact piece body, with contact fingers provided at both the top and bottom of the inner wall of the contact piece body. Receiving grooves are provided below the contact fingers, and a plurality of spring grooves are provided on the outer wall of the contact piece body.

[0010] Preferably, the size and position of the upper grid piece match those of the lower grid piece. The upper grid piece and the lower grid piece close to form a circular ring, and the length of the connecting plate is greater than the length of the card slot.

[0011] Preferably, the size and position of the card slot match those of the receiving groove, and the size and position of the spring groove match those of the spring groove.

[0012] Preferably, a first screw hole is provided at the top of the upper grid piece, and a second screw hole is provided at the top of the lower grid piece.

[0013] Preferably, limit holes are provided at the top of both ends of the upper grid piece, and pins are provided inside the limit holes.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the advantages of the present utility model are as follows:

[0016] In the present utility model, a plurality of contact piece assemblies are clamped by a card slot, and springs are sleeved on the outer walls of the plurality of contact piece assemblies. By the staff turning the knob to drive the worm to rotate, the worm gear is driven to rotate, and then the lead screw drives the slider to move outwards, so that the springs are tightened to fix the plum blossom contact. When disassembly and maintenance are required, turning the knob in the reverse direction makes the slider drive the lower grid piece to contract inwards, so that the contact piece assembly is disengaged, which is convenient for disassembly and assembly, not easy to cause damage to the plum blossom contact, and safer at the same time;

[0017] Secondly, the contact surface area between the plum blossom contact and the electrical equipment is increased through the contact fingers, thereby reducing the contact resistance. The receiving groove facilitates the positioning of the contact piece body and the card slot, and the spring groove positions the spring, improving the stability of the plum blossom contact; the structure of the present utility model is designed compactly and reasonably, is convenient for disassembly and assembly, is not easy to cause damage, and has high stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is a schematic diagram of a partial structure of the present utility model;

[0020] Figure 3 is a schematic cross-sectional view of a partial structure of the present utility model;

[0021] Figure 4 is a schematic diagram of the partial structure of the upper grid piece of the present utility model;

[0022] Figure 5 This is a partial structural schematic diagram of the contact piece assembly of the present utility model;

[0023] Description of reference numerals in the figure: 1. Upper grid piece; 2. Lower grid piece; 3. Moving component; 4. Card slot; 5. Contact piece assembly; 6. Spring; 7. First screw hole; 8. Limit hole; 9. Plug; 10. Second screw hole; 301. Connecting plate; 302. Chute; 303. Lead screw; 304. Worm gear; 305. Worm; 306. Knob; 307. Slide block; 501. Contact piece body; 502. Contact finger; 503. Connecting groove; 504. Spring groove. Specific embodiments

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0025] In the description of the present utility model, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.

[0026] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, terms such as "installation", "provided with", "sheathed / connected", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0027] Please refer to Figures 1-5 , the present utility model provides a technical solution:

[0028] A plum blossom contact that is convenient for disassembly and assembly includes an upper grid piece 1. A lower grid piece 2 is slidably connected to the side wall of the upper grid piece 1. Moving components 3 are fixedly arranged on the side walls at both ends of the lower grid piece 2. The moving component 3 includes a connecting plate 301. A chute 302 is opened at the top of the connecting plate 301. A lead screw 303 is rotatably connected inside the chute 302. A worm gear 304 is fixedly arranged on the outer circumferential wall at one end of the lead screw 303. A worm 305 is engaged with one side of the worm gear 304. A knob 306 is arranged at the top of the worm 305 passing through the top surface of the lower grid piece 2. A slider 307 is threadedly connected to the outer circumferential wall of the lead screw 303. A plurality of card slots 4 are opened on the outer circumferential walls of the upper grid piece 1 and the lower grid piece 2. A plurality of contact piece assemblies 5 are clamped in the plurality of card slots 4. A spring 6 is clamped on the outer walls of the plurality of contact piece assemblies 5. In the utility model, a plurality of contact piece assemblies 5 are clamped through the card slots 4, and the spring 6 is sleeved on the outer walls of the plurality of contact piece assemblies 5. By a worker turning the knob 306 to drive the worm 305 to rotate, thereby driving the worm gear 304 to rotate, and then enabling the lead screw 303 to drive the slider 307 to move outwards, so that the spring 6 is tightened to fix the plum blossom contact. When disassembly and repair are needed, turning the knob 306 in the reverse direction enables the slider 307 to drive the lower grid piece 2 to contract inwards, so that the contact piece assemblies 5 are disengaged. The disassembly and assembly are convenient, and it is not easy to cause damage to the plum blossom contact, and it is safer at the same time.

[0029] Specifically, the contact piece assembly 5 includes a contact piece body 501. Contact fingers 502 are fixedly arranged at the top and bottom of the inner wall of the contact piece body 501. Connecting grooves 503 are opened below the contact fingers 502. A plurality of spring grooves 504 are opened on the outer wall of the contact piece body 501. By the contact fingers 502, the contact surface area between the plum blossom contact and the electrical equipment is increased, thereby reducing the contact resistance. By the connecting grooves 503, it is convenient for positioning the connection of the contact piece body 501 and the card slot 4. By the spring grooves 504, the spring 6 is positioned, improving the stability of the plum blossom contact.

[0030] Further, the size and position of the upper grid piece 1 match the size and position of the lower grid piece 2. The upper grid piece 1 and the lower grid piece 2 are closed to form a circular ring. The length of the connecting plate 301 is greater than the length of the card slot 4. By the connecting plate 301 with a length greater than that of the card slot 4, when tightening the circular ring formed by closing the upper grid piece 1 and the lower grid piece 2, the contact piece body 501 can be disengaged from the card slot 4, thus facilitating the disassembly and repair of the plum blossom contact.

[0031] It is worth noting that the size and position of the card slot 4 match the size and position of the connecting groove 503, and the size and position of the spring groove 504 match the size and position of the spring groove 504. By the card slot 4 and the connecting groove 503 with matching sizes and positions, it is convenient for workers to install the contact piece assembly 5.

[0032] It is worth noting that a first screw hole 7 is opened at the top of the upper grid piece 1, and a second screw hole 10 is opened at the top of the lower grid piece 2. By screwing a bolt into the first screw hole 7 to connect two upper grid pieces 1, and another bolt into the second screw hole 10 to connect two lower grid pieces 2, it is convenient to stabilize the plum blossom contact.

[0033] In addition, limiting holes 8 are provided at both top ends of the upper grid piece 1, and a pin 9 is clamped inside the limiting holes 8. By inserting the pin 9 into the limiting holes 8, the stability between the upper grid piece 1 and the lower grid piece 2 is improved.

[0034] Working principle: When the device is required to disassemble and assemble the plum blossom contact, the staff clamps a plurality of contact piece assemblies 5 through the clamping groove 4. The spring 6 is sleeved on the outer walls of the plurality of contact piece assemblies 5. Two upper grid pieces 1 are connected by screwing a bolt into the first screw hole 7, and another bolt is screwed into the second screw hole 10 to connect two lower grid pieces 2 to improve stability. Turning the knob 306 drives the worm 305 to rotate, thereby driving the worm gear 304 to rotate, and then the lead screw 303 drives the slider 307 to move outwards. By inserting the pin 9 into the limiting holes 8, the stability between the upper grid piece 1 and the lower grid piece 2 is improved, so that the spring 6 is tightened to fix the plum blossom contact. When disassembly and repair are required, turning the knob 306 in the reverse direction makes the slider 307 drive the lower grid piece 2 to contract inwards, so that the contact piece assemblies 5 are disengaged. The disassembly and assembly are convenient, and it is not easy to cause damage to the plum blossom contact. At the same time, it is safer. The contact finger 502 increases the contact surface area between the plum blossom contact and the electrical equipment, thereby reducing the contact resistance. The connecting groove 503 facilitates the positioning of the contact piece body 501 and the clamping groove 4, and the spring groove 504 positions the spring 6 to improve the stability of the plum blossom contact.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A plum blossom contact that is easy to assemble and disassemble, comprising an upper grid plate (1), characterized in that: The side wall of the upper grid plate (1) is provided with a lower grid plate (2), and the side walls at both ends of the lower grid plate (2) are provided with a moving assembly (3), and the moving assembly (3) comprises a connecting plate (301), and a slide groove (302) is provided on the top of the connecting plate (301), and a lead screw (303) is rotatably connected inside the slide groove (302), and a worm wheel (304) is provided on the circumferential outer wall of one end of the lead screw (303), and a worm (305) is meshed on one side of the worm wheel (304), and a knob (306) is provided on the top of the worm (305), and a slider (307) is threadedly connected to the circumferential outer wall of the lead screw (303), and a plurality of slots (4) are provided on the circumferential outer walls of the upper grid plate (1) and the lower grid plate (2), and a plurality of the slots (4) are provided with a contact piece assembly (5), and a plurality of the contact piece assemblies (5) are provided with springs (6) on the outer walls.

2. The plum blossom contact that is easy to assemble and disassemble according to claim 1, characterized in that: The contact piece assembly (5) comprises a contact piece body (501), the top and bottom of the inner wall of the contact piece body (501) are both provided with contact fingers (502), the lower parts of the contact fingers (502) are both provided with connecting grooves (503), and the outer wall of the contact piece body (501) is provided with a plurality of spring grooves (504).

3. The plum blossom contact that is easy to disassemble and assemble according to claim 2, characterized in that: The size and position of the upper grid plate (1) match the size and position of the lower grid plate (2); the upper grid plate (1) and the lower grid plate (2) are folded together to form a circular ring; the length of the connecting plate (301) is greater than the length of the slot (4).

4. The plum blossom contact that is easy to assemble and disassemble according to claim 3, characterized in that: The size and position of the clamping slot (4) match the size and position of the connecting slot (503), and the size and position of the spring slot (504) match the size and position of the spring slot (504).

5. The plum blossom contact that is easy to assemble and disassemble according to claim 4, characterized in that: The top of the upper grid plate (1) is provided with a first screw hole (7), and the top of the lower grid plate (2) is provided with a second screw hole (10).

6. The plum blossom contact that is easy to assemble and disassemble according to claim 5, characterized in that: Limiting holes (8) are provided at the tops of both ends of the upper grid plate (1), and latches (9) are provided inside the limiting holes (8).

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