Multi-directional limiting plastic supporting spring structure convenient to assemble and disassemble

Abstract

The utility model discloses a multidirectional spacing plastic supporting spring structure convenient to assemble and disassemble, which comprises a base, a supporting spring ring and a contact piece, the supporting spring ring adopts a split structure design, is combined and sleeved in a middle groove of the contact piece, and is fixed with a flat plane of the contact piece through a flat inner hole in the supporting spring ring to realize circumferential spacing; the spring supporting ring and the contact piece are inserted into the contact piece hole of the base, and the elastic clamping hook of the spring supporting ring is in contact with the boss face in the middle of the clamping groove of the base, so that axial limiting is achieved. According to the utility model, the split type plastic supporting spring ring is designed between the base and the contact element, so that the elastic connection between the contact element and the base and the axial and circumferential multi-direction limitation of the contact element in the contact element hole of the base are realized, and the connector has the advantages that the connection is reliable, the assembly and disassembly are convenient, and the contact element and the supporting spring ring can be independently maintained and are convenient to replace.

Description

Technical Field

[0001] The utility model relates to the technical field of electric connectors, in particular to a multi-directional limiting plastic support spring structure that is convenient for assembly and disassembly. Background Art

[0002] In traditional connectors, the connection between the contact and the base is divided into two types: detachable and non-detachable. For non-detachable connectors, in actual application, if individual contacts are damaged, the only option is to replace the connector as a whole. This is not only costly but also cumbersome, so connectors with detachable contacts are popularized. In order to facilitate disassembly, an elastic support ring must be set between the contact and the base. Whether the structure of the elastic support ring is reasonable directly affects the electrical performance and application effect between the contact and the base. The existing technology is to add an elastic support ring to the non-detachable fixed structure of the upper and lower bases, and the elastic support ring supports the contact to limit the backward movement of the contact, while the forward displacement is limited by the upper base. Or the base is a single base, the elastic support ring is assembled to the contact, and then the contact is pushed into the base from the tail, the base squeezes the contracted elastic support teeth, and after the contact is installed in place, the elastic support teeth reset and expand to limit the contact. Regardless of the method, although the contact parts can be removed after assembly, the elastic support ring cannot be removed. If maintenance is required later, the former base needs to be scrapped and the latter single elastic support ring needs to be scrapped, which increases the rework cost. At the same time, the traditional elastic support ring can only achieve axial limitation of the contact parts. For connectors with solder cup or copper busbar structure at the tail end and circumferential limitation requirements, it cannot meet the use requirements. Utility Model Content

[0003] In view of this, the utility model hopes to provide a multi-directional limiting plastic support spring structure that is easy to assemble and disassemble, and adopts a split plastic support spring ring to achieve an elastic connection between the contact piece and the base, and axial and circumferential multi-directional limiting of the contact piece in the contact piece hole of the base, which has the advantages of reliable connection, independent maintenance of the contact piece and the support spring ring, and easy replacement.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] The utility model provides a multi-directional limiting plastic support spring structure that is easy to assemble and disassemble, comprising a base, a support spring ring and a contact piece; the base is provided with a plurality of contact piece holes, a middle convex table is provided in the contact piece hole, and the two sides of the middle convex table are the front edge of the card slot and the rear edge of the card slot in sequence; the support spring ring is a split type, composed of two semicircular plastic blocks, each of which comprises a positioning column and a positioning hole, and the two plastic blocks are combined into a cylindrical shape through the positioning column and the positioning hole, and the outer arc surface of each plastic block is provided with an elastic hook; one end of the contact piece is a jack, and the other end is a copper bar, and a groove is provided in the middle; the support spring ring is sleeved in the middle groove of the contact piece, and the support spring ring together with the contact piece is plugged into the contact piece hole of the base, and the elastic hook of the support spring ring enters the card slot of the contact piece hole in the base and touches the middle convex table of the card slot.

[0006] Furthermore, each of the plastic blocks has an inner cavity with a limiting plane, the middle of the support spring ring formed after assembly is a flat-shaped inner hole, the groove of the contact piece is provided with a flat plane, and the inner hole fits with the flat plane.

[0007] The beneficial effects of the utility model are as follows:

[0008] The utility model adopts a split plastic spring ring between the base and the contact piece, so as to realize elastic connection between the contact piece and the base, and both the contact piece and the spring ring can be disassembled, can be maintained independently, are easy to replace, and reduce costs.

[0009] The support spring ring of the utility model is designed with a flat inner hole, and the groove in the contact piece is also designed with a flat plane. The inner hole and the flat plane fit together to achieve axial and circumferential multi-directional limiting of the contact piece in the contact hole of the base, which has the advantage of reliable connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the assembly structure of an embodiment of the utility model;

[0011] Figure 2 This is a schematic diagram of the contact structure of an embodiment of the utility model;

[0012] Figure 3 This is a schematic diagram of the assembly structure of the contact piece and the support spring ring according to the embodiment of the utility model;

[0013] Figure 4 This is a schematic diagram of the structure of the plastic block of the utility model embodiment;

[0014] Figure 5 This is a schematic diagram of the structure of the support spring ring in the embodiment of the utility model;

[0015] Figure 6 This is a schematic diagram of the structure of the base of the utility model from the first viewing angle;

[0016] Figure 7 This is a schematic diagram of the structure of the base of the utility model from a second viewing angle;

[0017] Figure 8 This is a schematic diagram of the initial disassembly state of the embodiment of the utility model;

[0018] Fig. 9 This is a schematic diagram of an intermediate disassembly state of an embodiment of the utility model;

[0019] Among them: 1 is the base, 2 is the support spring ring, 3 is the contact piece, 4 is the disassembly tool, 11 is the contact piece hole, 12 is the front edge of the slot, 13 is the middle boss surface, 14 is the rear edge of the slot, 21 is the plastic block, 22 is the positioning column, 23 is the positioning hole, 24 is the elastic hook, 25 is the limiting plane, 26 is the inner hole, 31 is the jack, 32 is the copper busbar, 33 is the groove, and 34 is the flat plane. DETAILED DESCRIPTION

[0020] In order to more thoroughly understand the features and technical contents of the present invention, the implementation of the present invention is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not intended to limit the present invention.

[0021] like Figure 1-7 As shown, the embodiment of the utility model includes a base 1, a support spring ring 2 and a contact member 3; the base 1 is provided with two contact member holes 11, and a middle boss surface 13 is provided in the contact member holes 11, and the two sides of the middle boss surface 13 are a front edge 12 of the card slot and a rear edge 14 of the card slot.

[0022] The support spring ring 2 is a split type, consisting of two semicircular plastic blocks 21, each of which includes a positioning column 22 and a positioning hole 23. The two plastic blocks 21 are combined into a cylindrical shape through the positioning column 22 and the positioning hole 23. The outer arc surface of each plastic block 21 is provided with an elastic hook 24, and the inner cavity of each plastic block 21 is provided with a limiting plane 25. The support spring ring 2 formed after the combination has a flat inner hole 26 in the middle.

[0023] The contact piece 3 has a socket 31 at one end and a copper bar 32 for connecting wires at the other end. A groove 33 is provided in the middle of the contact piece 3. A flat plane 34 is provided in the groove 33 of the contact piece 3. The inner hole 26 fits the flat plane 34.

[0024] The support spring ring 2 is sleeved in the middle groove 33 of the contact piece 3, and the support spring ring 2 together with the contact piece 3 is inserted into the contact piece hole 11 of the base 1. The elastic hook 24 of the support spring ring 2 enters the groove of the contact piece hole 11 in the base 1 and touches the middle boss surface 13 of the groove to achieve axial limitation.

[0025] The specific assembly process of the utility model embodiment:

[0026] First, assemble the two plastic blocks 21 into the groove 33 in the middle of the contact piece 3 respectively, so that the limiting plane 25 of the plastic block 21 fits with the flat plane 34 in the middle of the contact piece 3, align the positioning columns 22 of the two plastic blocks 21 with the positioning holes 23, and press the two plastic blocks 21 together so that the copper busbar 32 at the tail of the contact piece 3 is fixed circumferentially.

[0027] Then, the support spring ring 2 together with the contact piece 3 is inserted into the contact piece hole 11 of the base 1 so that the socket 31 end of the contact piece 3 is inserted into the contact piece hole 11 of the base 1. At this time, the elastic hooks 24 on both sides of the support spring ring 2 touch the front edge 12 of the slot of the contact piece hole 11. Under the action of the plug-in force, the elastic hooks 24 enter the base 1 along the front edge 12 of the slot. At the same time, the front edge 12 of the slot squeezes the elastic hooks 24 on both sides of the support spring ring 2, forcing the elastic hooks 24 on the cylinder wall of the support spring ring 2 to shrink, thereby compressing the support spring ring 2 radially and passing through the contact piece hole 11 of the base 1 until the elastic hooks 24 on the support spring ring 2 completely pass over the middle boss surface 13 between the front edge 12 of the slot of the contact piece hole 11 of the base 1 and the rear edge 14 of the slot, the radial compression force of the elastic hooks 24 of the support spring ring 2 is released and the deformation is restored. At this time, the elastic hooks 24 on the support spring ring 2 touch the middle boss surface 13 of the base 1 to achieve axial limitation, and the elastic assembly of the contact piece 3 and the base 1 is completed.

[0028] The specific disassembly process of the embodiment of the utility model is as follows:

[0029] See also Figure 8 , Fig. 9 The utility model needs to be disassembled with the help of a disassembly tool 4, and the disassembly tool 4 is composed of a sleeve and a push rod. During disassembly, the sleeve of the disassembly tool 4 is inserted into the rear edge 14 of the card slot of the base 1, so that the end of the sleeve touches the front chamfer of the elastic hook 24 of the support spring ring 2. As the sleeve of the disassembly tool 4 is inserted, under the action of the penetration force, the end of the sleeve squeezes the elastic hook 24 of the support spring ring 2, forcing the elastic hook 24 of the support spring ring 2 to contract, so that the support spring ring 2 is radially compressed and penetrates into the contact hole 11 of the base 1. At this time, the push rod of the disassembly tool 4 is used to apply force to the insertion hole 31 of the contact member 3, so that the support spring ring 2 and the contact member 3 are pushed out from the contact hole 11 of the base 1. The disassembly of the support spring ring 2, the contact member 3 and the base 1 is completed, and the support spring ring 2 can be disassembled and replaced.

[0030] Since the axial and circumferential displacements of the contact piece 3 when inserted into the support spring ring 2 are restricted, the axial and circumferential displacements of the support spring ring 2 in the contact piece hole 11 of the base 1 are restricted, and the elastic connection between the contact piece 3 and the base 1 can be achieved by inserting the insertion hole 31 of the contact piece 3 of the present invention into the corresponding base 1.

[0031] In order to achieve circumferential limitation of the contact member 3 in the base 1, a limiting plane 25 is provided in the inner cavity of the plastic block 21. After being assembled into the support spring ring 2, a flat inner hole 26 is formed. A flat plane 34 is provided in the middle part of the contact member 3. The two cooperate to control the circumferential limitation.

[0032] In order to facilitate the assembly and disassembly of the support spring ring 2 and the contact member 3 and the assembly and disassembly of the support spring ring 2, the contact member 3 and the base 1, the support spring ring 2 of the present invention adopts a split structure design, and the contact member 3 and the support spring ring 1 can be maintained independently and are easy to replace.

[0033] Here, the specific models of the above-mentioned devices are not limited or described in detail, and the in-depth connection methods of the above-mentioned devices are not described in detail. As common knowledge, technicians in this field can understand it.

[0034] The embodiments of the utility model are only to introduce its specific implementation methods and are not intended to limit its protection scope. The technicians in this industry can make some modifications inspired by the embodiments, so any equivalent changes or modifications made in accordance with the scope of the utility model patent are within the scope of the claims of the utility model patent.

Claims

1. A multi-directional limit plastic spring structure that is easy to assemble and disassemble, characterized in that: The invention comprises a base (1), a spring support ring (2) and a contact piece (3); the base (1) is provided with a plurality of contact piece holes (11), the contact piece holes (11) are provided with a middle boss surface (13), and the two sides of the middle boss surface (13) are respectively provided with a front edge (12) of a card slot and a rear edge (14) of a card slot; the spring support ring (2) is a split type, and is composed of two semicircular plastic blocks (21), each of the plastic blocks (21) comprises a positioning column (22) and a positioning hole (23), and the two plastic blocks (21) are combined into a cylindrical shape through the positioning column (22) and the positioning hole (23), and the outer arc surface of each plastic block (21) is provided with an elastic hook (24); one end of the contact piece (3) is a socket (31), the other end is a copper bar (32), and a groove (33) is provided in the middle; The support spring ring (2) is sleeved in the middle groove (33) of the contact piece (3), and the support spring ring (2) and the contact piece (3) are inserted into the contact piece hole (11) of the base (1). The elastic hook (24) of the support spring ring (2) enters the slot of the contact piece hole (11) in the base (1) and touches the middle boss surface (13) of the slot.

2. The multi-directional limit plastic support spring structure that is easy to assemble and disassemble according to claim 1 is characterized in that: A limiting plane (25) is provided in the inner cavity of each plastic block (21), and a flat inner hole (26) is formed in the middle of the support spring ring (2) after the combination, and a flat plane (34) is provided in the groove (33) of the contact piece (3), and the inner hole (26) is in contact with the flat plane (34).

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