Contact support of tulip contact

Abstract

The utility model discloses a contact support of a tulip contact, which comprises a fixed column, an upper annular grid sheet, a lower annular grid sheet and a contact sheet, the upper annular grid sheet and the lower annular grid sheet are respectively riveted at two ends of the fixed column, and the upper annular grid sheet and the lower annular grid sheet are uniformly provided with a plurality of clamping grooves at equal intervals by taking a circle point as an axis. The two sides of the clamping groove are provided with elastic pieces, and when the contact pieces are inserted into the clamping groove, the elastic pieces abut against the two sides of the contact pieces and act on the contact pieces so that the contact pieces can be fixed to the upper annular grid piece and the lower annular grid piece in advance. According to the utility model, acting force is released on the contact piece through the elastic piece, a pre-fixing force is provided for the contact piece, the condition that one end of the contact piece tilts or part of the contact piece is separated from the clamping groove due to the contraction force of the annular spring in the process of adjusting the annular spring is prevented, the time required for assembly is further reduced, and the assembly efficiency is improved. And the product has the advantages of improving the assembly efficiency and reducing the production cost.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a contact bracket of a plum blossom contact. Background Art

[0002] The plum blossom contact is a kind of power equipment accessory. Because it is used in the primary circuit, it is also called the primary moving contact. The plum blossom contact body is made of non-magnetic stainless steel and is used in center-mounted circuit breakers and other high-voltage and medium-voltage electrical appliances.

[0003] The existing plum blossom contact includes an annular upper grid sheet, an annular lower grid sheet, and a plurality of contact sheets clamped on the annular upper grid sheet and the annular lower grid sheet. An annular spring is provided on the contact sheet to fix the contact sheet on the annular upper grid sheet and the annular lower grid sheet. However, when installing the annular spring, when the annular spring first enters one end of the contact sheet, it is necessary to put the annular spring into the groove of the contact sheet. During the adjustment process, the contraction force of the annular spring acts on one end of the contact sheet, causing the other end of the contact sheet to be lifted up or part of the contact sheet to be out of the clamping groove, which brings inconvenience to assembly and increases production costs. Therefore, the applicant has made a beneficial design and found a solution to the above-mentioned problem. The technical solution to be introduced below is produced in this context. Summary of the invention

[0004] The purpose of the utility model is to overcome the shortcomings of the above-mentioned background technology design and provide a product that improves assembly efficiency and reduces production costs.

[0005] To solve the above problems, the utility model adopts the following technical solutions.

[0006] A contact bracket of a plum blossom contact comprises a fixing column, and an upper annular grid sheet and a lower annular grid sheet riveted to both ends of the fixing column respectively, and a contact sheet, wherein the upper annular grid sheet and the lower annular grid sheet are evenly distributed with a circle as the axis and are provided with a plurality of equally spaced slots, and spring sheets are provided on both sides of the slots. When the contact sheet is inserted into the slots, the spring sheets abut against both sides of the contact sheet and act on the contact sheet, so as to pre-fix the contact sheet on the upper annular grid sheet and the lower annular grid sheet.

[0007] Preferably, the elastic sheet includes a bent portion and abuts against a side wall of the contact sheet, and one end of the bent portion is provided with a bent portion and faces the side wall of the slot.

[0008] Preferably, a plurality of grooves are provided above and below the contact piece, and the grooves are provided with annular springs for pressing the contact piece tightly into the slot.

[0009] Beneficial effects:

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model releases the force on the contact piece through the spring piece, giving the contact piece a pre-fixing force, thereby preventing the contact piece from being subjected to the contraction force of the annular spring during the adjustment of the annular spring, causing one end of the contact piece to tilt up or part of the contact piece to be out of the slot, thereby reducing the time required for assembly, so that the product has the advantages of improving assembly efficiency and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a contact support of a plum blossom contact of the utility model;

[0013] Figure 2 This is an exploded view of a contact bracket of a plum blossom contact of the utility model;

[0014] Figure 3 For this utility model Figure 2 A partial structure enlarged view of detail A of a contact support of a plum blossom contact;

[0015] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0016] Figure numerals: 1, fixing column; 2, upper annular grid; 3, lower annular grid; 4, contact piece; 5, slot; 6, annular spring; 41, groove; 51, spring piece; 52, bending part; 53, bending part. DETAILED DESCRIPTION

[0017] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0018] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left" and "right" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0019] Reference example Figures 1 to 3, a contact support of a plum blossom contact, comprising a fixing column 1, and an upper annular grid sheet 2 and a lower annular grid sheet 3, and a contact sheet 4 riveted to both ends of the fixing column 1, respectively; the upper annular grid sheet 2 and the lower annular grid sheet 3 are evenly distributed with a plurality of equally spaced slots 5 with a dot as the axis, and springs 51 are arranged on both sides of the slots 5, when the contact sheet 4 is inserted into the slots 5, the springs 51 abut against both sides of the contact sheet 4 and act on the contact sheet 4, so as to pre-fix the contact sheet 4 on the upper annular grid sheet 2 and the lower annular grid sheet 3, release the force on the contact sheet 4 through the springs 51, and give the contact sheet 4 a pre-fixing force, so as to prevent the contact sheet 4 from being subjected to the contraction force of the annular spring 6 during the adjustment of the annular spring 6, resulting in one end of the contact sheet 4 being lifted up or part of the contact sheet 4 being separated from the slots 5, thereby reducing the time required for assembly;

[0020] It is worth mentioning that the spring sheet 51 includes a bent portion 52 and abuts against the side wall of the contact sheet 4. A bent portion 53 is provided at one end of the bent portion 52 and faces the side wall of the slot 5. The bent portion 52 plays an energy storage role. When the contact sheet 4 enters the slot 5, the contact sheet 4 opens the bent portions 52 on both sides of the contact sheet 4, so that the bent portions 53 abut against the side wall of the slot 5, and store energy and then release elastic force to the contact sheet 4, further strengthening the pre-connection fixation of the spring sheet 51 with the upper annular grid sheet 2 and the lower annular grid sheet 3.

[0021] It is worth mentioning that a plurality of grooves 41 are provided at the upper and lower parts of the contact piece 4, and an annular spring 6 is provided in the groove 41, which is used to press the contact piece 4 into the slot 5. When the contact piece 4 is squeezed by the contact, the contact piece 4 and the annular spring 6 are stretched outward, and the groove 41 prevents the annular spring 6 from being displaced or separated from the contact piece 4 due to the stretching force, resulting in the contact piece 4 being unable to be tightly attached to the moving contact.

[0022] The above design scheme can enable the product to achieve the advantages of improving assembly efficiency and reducing production costs.

[0023] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A contact support for a plum blossom contact, comprising a fixing column (1), an upper annular grid sheet (2) and a lower annular grid sheet (3) riveted to both ends of the fixing column (1), and a contact sheet (4), characterized in that: The upper annular grid sheet (2) and the lower annular grid sheet (3) are evenly distributed with a plurality of equally spaced slots (5) with a dot as the axis, and spring sheets (51) are provided on both sides of the slots (5). When the contact sheet (4) is inserted into the slots (5), the spring sheets (51) abut against both sides of the contact sheet (4) and act on the contact sheet (4), so as to pre-fix the contact sheet (4) on the upper annular grid sheet (2) and the lower annular grid sheet (3).

2. The contact support of the plum blossom contact according to claim 1, characterized in that: The elastic sheet (51) comprises a bent portion (52) and abuts against the side wall of the contact sheet (4); one end of the bent portion (52) is provided with a bent portion (53) and faces the side wall of the card slot (5).

3. The contact support of the plum blossom contact according to claim 1, characterized in that: A plurality of grooves (41) are provided at the upper and lower parts of the contact piece (4), and the groove (41) is provided with an annular spring (6) for pressing the contact piece (4) tightly into the clamping groove (5).

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