Wave-shaped butterfly prongs

Abstract

The utility model proposes a kind of wave-shaped butterfly plug, it is related to butterfly plug technical field, including plug main part, the middle part of plug main body is fixedly connected with wave-shaped spring, one side of wave-shaped spring is provided with butterfly fastening piece, the one end of butterfly fastening piece is fixedly connected with the plug piece of being fixed in position. The utility model has the advantages of: in the middle part of butterfly plug, wave-shaped spring made of elastic metal material is additionally provided, the elastic recovery amount of a certain amount is stored for butterfly plug using the wave-shaped structure of wave-shaped spring and the elasticity of its own material, so that butterfly plug can keep the stability of its recovery performance in the process of long-term use, and the plug piece of vertical structure is set in the both ends of butterfly fastening piece of butterfly plug, the stability after assembly is increased by plug piece to fix rubber piece, avoid swing after assembly, further enhance the clamping fastening capacity of butterfly plug connecting place, improve the stability of butterfly plug installation connection.

Description

Technical Field

[0001] This utility model relates to the field of butterfly plug technology, and in particular to a wave-shaped butterfly plug. Background Technology

[0002] In the field of electronic devices and related connections, the connector, as a key component for achieving electrical connections, plays a crucial role in the stability, reliability, and ease of installation of equipment. With the continuous miniaturization and multi-functionality of electronic products, the requirements for connectors are also increasing. Butterfly connectors, with their ease of insertion and removal and contact stability, are widely used in consumer electronics (such as smart home controllers), industrial control modules, automotive electronics, and other scenarios.

[0003] However, most existing butterfly connectors are one-piece structures made of a single material with poor elastic recovery performance. After long-term use, the contact pressure decreases, which is not conducive to maintaining the stability of the connection. Utility Model Content

[0004] Therefore, the purpose of this utility model is to propose a wave-shaped butterfly pin to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0005] To achieve the above objectives, one embodiment of this utility model provides a wave-shaped butterfly plug, comprising a plug body made of conductive metal, a wave-shaped spring piece made of elastic metal fixedly connected to the middle of the plug body, a butterfly fastening piece for fastening is provided on one side of the wave-shaped spring piece, a plug component for fastening and positioning is fixedly connected to one end of the butterfly fastening piece, and fastening protective plates made of insulating material are fixedly installed at both ends of the plug body, a sealing sheet covering the wave-shaped spring piece is fixedly installed at one end of the fastening protective plate, a wave-shaped sealing sheet made of insulating material is fixedly installed at the other end of the fastening protective plate, and compression blocks for fastening are fixedly installed at both ends of the wave-shaped sealing sheet.

[0006] Preferably, either of the above-mentioned solutions has a vertical baffle with rounded corners at both ends of the main body of the plug, and a connecting groove for fixing a wave-shaped spring is provided in the middle of the main body of the plug.

[0007] The above technical solution is adopted as follows: The vertical baffles at both ends of the main body of the pin (made of brass, with tin-plated surface for anti-oxidation) are integrally formed with the main body. The vertical structure is formed by stamping process. The core function is to limit the insertion and removal depth of the pin and the external interface. The purpose is to avoid excessive insertion and removal, which may cause deformation or contact failure of the internal wave-shaped spring. The rounded corner design prevents scratching of the interface during insertion and removal. The connecting groove (rectangular groove) in the middle of the main body is processed by laser cutting. It is used to fit and fix the wave-shaped spring (interference fit). The core function is to provide a precise installation reference for the wave-shaped spring. The purpose is to ensure that the spring is coaxial with the main body and avoid the spring from shifting and causing misalignment of the contact point. At the same time, the groove depth design makes the spring flush with the surface of the main body after fitting, which does not affect the smoothness of insertion and removal.

[0008] Preferably, in any of the above embodiments, the wavy spring at one end of the plug body is recessed inward, and the wavy spring at the other end of the plug body is protruding outward, and the size of the wavy spring is smaller than the size of the plug body.

[0009] The above technical solution is adopted: a wave-shaped spring piece (the wave-shaped structure has 2 peaks and 2 troughs), one end is concave inward and the other end is convex outward. The overall size is smaller than the main body of the pin, and it is fixed to the connecting groove by welding (laser spot welding).

[0010] Preferably, in any of the above embodiments, the width of the butterfly fastening piece is smaller than the width of the plug body, the butterfly fastening piece and the plug body are perpendicularly distributed, the plug is located at both ends of the butterfly fastening piece away from the plug body, and the plug and the butterfly fastening piece are perpendicularly distributed and located on the side closer to the plug body.

[0011] The above technical solution adopts a butterfly fastening plate (made of brass with nickel plating to enhance wear resistance), which is formed by stamping and then welded vertically to the main body of the plug. Its core function is to enhance the locking and fastening force between the plug and the interface. Its function is to prevent the plug from loosening due to vibration by engaging with the interface slot through the vertically distributed plate structure. The width design provides space for the installation of the plug components without the risk of interference. The plug components at both ends of the butterfly fastening plate away from the main body (integrated with the fastening plate, made of the same material as the fastening plate, vertically distributed with the fastening plate, and located closer to the main body) are also present.

[0012] Preferably, in any of the above embodiments, the fastening protective plate is bonded to the four sides of the plug body, and the fastening protective plate has a locking groove inside to fix the sealing sheet and the corrugated sealing sheet.

[0013] The above technical solution is adopted: the fastening protective plate (epoxy resin board) is bonded to the four sides of the plug body with environmentally friendly adhesive to form a ring-shaped insulating barrier. Its core function is to achieve insulation protection of the plug and fix the component. Its role is to isolate the plug body (conductive part) from the external non-conductive structure to avoid short circuit. At the same time, its internal locking groove provides installation slots for the closed sheet and the corrugated sealing sheet. The locking groove is opened along the four sides of the protective plate.

[0014] Preferably, in any of the above embodiments, the sealing sheet includes an elastic sheet covering the recessed wavy spring and a fastening strip for locking and fixing. The two ends of the elastic sheet are fixedly connected to the fastening strip, which is engaged in the locking groove of the fastening protective sheet. The elastic sheet is attached to one end face of the plug body and located on one side of the recessed wavy spring.

[0015] The above technical solution is adopted: the elastic sheet of the sealing sheet covers the surface of the recessed wavy spring at one end of the plug body. Its core function is to seal the gap between the recessed spring and the body. Its function is to prevent dust and moisture from entering through the gap, and to prevent the spring from getting damp and oxidized or stuck by debris. The elastic material ensures that the sheet expands and contracts synchronously with the deformation of the spring without affecting the elasticity of the spring. The fastening strips at both ends of the elastic sheet (integrated with the sheet) are engaged in the engagement groove of the fastening protective sheet.

[0016] Preferably, in any of the above embodiments, the corrugated sealing sheet includes a protective rubber pad covering the protruding corrugated spring piece and an elastic fastening strip for locking and fastening. The protective rubber pad is fixedly connected to both ends of the elastic fastening strip. The protective rubber pad is attached to the surface of the protruding corrugated spring piece and the pin body. The elastic fastening strip is engaged inside the engagement groove. The compression block is fixedly connected to one end of the elastic fastening strip and located inside the fastening protective sheet.

[0017] The above technical solution is adopted: the protective gasket of the corrugated sealing sheet (made of nitrile rubber, oil-resistant and water-resistant) is attached to the protruding corrugated spring and the surface of the main body at the other end of the pin body, and has a corrugated structure (consistent with the corrugated spring). Its core function is to seal the gap between the protruding spring and the main body. Through the corrugated fitting design, even if the spring is deformed, the gasket can still cover tightly to prevent the intrusion of foreign matter. At the same time, the elastic buffer spring of rubber material is used to avoid collision with the interface and prevent damage to the spring.

[0018] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows: A wavy spring made of elastic metal material is added to the middle of the butterfly plug. The wavy structure of the spring and the elasticity of the material itself store a certain amount of elastic recovery for the butterfly plug, so that the butterfly plug can maintain its stable recovery performance during long-term use. In addition, vertical plugs are set at both ends of the butterfly fastening piece of the butterfly plug. The plugs fix the plastic parts, increase the stability after assembly, prevent swaying after assembly, further enhance the locking and fastening ability of the butterfly plug connection, and further improve the stability of the butterfly plug installation connection. This is conducive to ensuring the stability and safety of the butterfly plug in long-term use.

[0019] An insulating material is used to fasten and protect the surface of the butterfly plug. The fastening and protective plate is used to fasten the sealing sheet and the corrugated sealing plate. The sealing sheet and the corrugated sealing plate seal and protect the corrugated spring, preventing foreign objects from entering through the gap between the corrugated spring and the plug body, thus ensuring the safety of the butterfly plug.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure according to an embodiment of the present utility model; Figure 2 This is a partial structural schematic diagram according to an embodiment of the present utility model; Figure 3 This is a cross-sectional structural diagram of the main body of the pin according to an embodiment of the present utility model; Figure 4 This is a cross-sectional structural diagram of the corrugated sealing sheet according to an embodiment of the present invention; Among them: 1-Pin body, 2-Wave-shaped spring, 3-Butterfly fastening piece, 4-Plug piece, 5-Fastening protective piece, 6-Sealing thin piece, 61-Elastic thin piece, 62-Fastening strip, 7-Wave-shaped sealing piece, 71-Protective rubber pad, 72-Elastic fastening strip, 8-Extrusion block, 9-Vertical baffle, 10-Connecting groove, 11-Interlocking groove. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0023] like Figure 1-4As shown, an embodiment of the present invention includes a wave-shaped butterfly plug, comprising a plug body 1 made of conductive metal, a wave-shaped spring piece 2 made of elastic metal fixedly connected to the middle of the plug body 1, a butterfly fastening piece 3 for fastening is provided on one side of the wave-shaped spring piece 2, a plug piece 4 for fastening and positioning is fixedly connected to one end of the butterfly fastening piece 3, and a fastening protective piece 5 made of insulating material is fixedly installed at both ends of the plug body 1, a sealing sheet 6 covering the wave-shaped spring piece 2 is fixedly installed at one end of the fastening protective piece 5, and a wave-shaped sealing piece 7 made of insulating material is fixedly installed at the other end of the fastening protective piece 5, and compression blocks 8 for fastening are fixedly installed at both ends of the wave-shaped sealing piece 7.

[0024] Preferably, either of the above-mentioned solutions has a vertical baffle 9 with rounded corners at both ends of the plug body 1, and a connecting groove 10 for fixing the wave-shaped spring piece 2 is provided in the middle of the plug body 1.

[0025] The above technical solution is adopted: The vertical baffles 9 at both ends of the main body 1 (made of brass, with tin-plated surface for anti-oxidation) are integrally formed with the main body. The vertical structure is formed by stamping process. The core function is to limit the insertion and removal depth of the pin and the external interface. The purpose is to avoid excessive insertion and removal, which may cause deformation or contact failure of the internal wave-shaped spring 2. The rounded corner design prevents scratching of the interface during insertion and removal. The connecting groove 10 (rectangular groove) in the middle of the main body is laser-cut and is used to fit and fix the wave-shaped spring 2 (interference fit). The core function is to provide a precise installation reference for the wave-shaped spring. The purpose is to ensure that the spring is coaxial with the main body and avoid the spring from shifting and causing misalignment of the contact point. At the same time, the groove depth design makes the spring flush with the surface of the main body after fitting, which does not affect the smoothness of insertion and removal.

[0026] Operating Principle: The main body 1 of the plug serves as the core carrier for electrical connection, transmitting current through the high conductivity of brass. The vertical baffle 9 engages with the interface limiting surface during insertion and removal, controlling the insertion depth. The connecting groove 10 secures the corrugated spring piece with an interference fit, ensuring the spring piece moves synchronously with the main body. Operation: When installing the corrugated spring piece 2, align the spring piece with the connecting groove 10 and apply pressure to complete the engagement. During insertion and removal, the vertical baffle 9 contacts the interface first, limiting further insertion. In use, the main body withstands the insertion and removal forces, while the connecting groove maintains the spring piece's position. The control principle achieves precise positioning and limiting without power through the dimensional tolerances of the mechanical structure, ensuring basic conductivity and structural stability without additional adjustments.

[0027] Preferably, in any of the above schemes, the wavy spring piece 2 at one end of the plug body 1 is recessed inward, and the wavy spring piece 2 at the other end of the plug body 1 is protruding outward, and the size of the wavy spring piece 2 is smaller than the size of the plug body 1.

[0028] The above technical solution is adopted: the wave-shaped spring piece 2 (the wave-shaped structure has 2 peaks and 2 troughs), one end is concave inward and the other end is convex outward. The overall size is smaller than the main body of the pin 1, and it is fixed to the connecting groove 10 by welding (laser spot welding).

[0029] Its core function is to provide continuous contact pressure and elastic recovery capability. Its role is to store elastic potential energy through the elastic deformation of its wave-shaped structure, ensuring stable contact pressure between the pin and the interface and preventing pressure drop after long-term use. The principle is that during insertion and removal, the spring is compressed, generating a wave-shaped deformation. When the deformation recovers, it generates a reaction force to maintain contact pressure. Operating principle: The inwardly concave end of the spring contacts the concave surface of the external interface, and the outwardly convex end contacts the convex surface of the interface. The bidirectional wave structure forms two-point contact; even if one contact point fails, the other contact point can still maintain connection. The spring size is smaller than the main body to avoid interference with the vertical baffle 9. Operation process: When the pin is inserted into the interface, the concave and convex ends of the spring contact the corresponding surfaces of the interface, generating deformation under compression, forming contact pressure. When removed, the spring elastically returns to its initial shape. The control principle achieves stable contact pressure and recovery capability through the elasticity of the spring material and the wave-shaped structure design, adapting to long-term insertion and removal needs without additional power.

[0030] Preferably, in any of the above schemes, the width of the butterfly fastening piece 3 is smaller than the width of the plug body 1, the butterfly fastening piece 3 and the plug body 1 are vertically distributed, the plug piece 4 is located at both ends of the butterfly fastening piece 3 away from the plug body 1, and the plug piece 4 and the butterfly fastening piece 3 are vertically distributed and located on the side closer to the plug body 1.

[0031] The above technical solution is adopted: the butterfly fastening plate 3 (made of brass with nickel plating to enhance wear resistance) is formed by stamping and then welded vertically to the main body 1 of the plug. Its core function is to enhance the locking and fastening force between the plug and the interface. Its function is to prevent the plug from loosening due to vibration by engaging with the interface slot through the vertically distributed plate structure. The width design provides installation space for the plug component 4 without interference risk. The plug components 4 (integrated with the fastening plate, made of the same material as the fastening plate, vertically distributed with the fastening plate and located close to the main body) on both ends of the butterfly fastening plate 3 away from the main body are used to fix the plastic parts, increase the stability after assembly, and prevent swaying after assembly.

[0032] The core function is to enhance the stability of the locking mechanism. The plug 4 inserts into the positioning hole of the interface, fixing the adhesive component and forming a double-fastening system of "sheet-like bonding + columnar positioning" to prevent lateral displacement of the pins. The principle is that the interference fit between the plug and the positioning hole restricts lateral movement, and works in conjunction with the longitudinal engagement of the butterfly fastener to achieve three-dimensional fixation. Operating principle: After the pins are inserted into the interface, the butterfly fastener 3 undergoes elastic deformation due to the pressure of the interface slot. After engagement, it recovers its deformation, forming a locking force. Simultaneously, the plug 4 inserts into the interface positioning hole, restricting lateral movement. Together, they ensure stable connection of the pins even under vibration. Operating process: When inserted into the interface, the butterfly fastener 3 is first compressed and deformed. After full insertion, it springs open, and the plug 4 aligns with the positioning hole, completing the engagement with the insertion action. When pulled out, a pulling force is applied to deform the fastener and disengage it from the slot, while the plug exits the positioning hole. The control principle achieves a powerless double-fastening system through the dimensional fit and elastic deformation of the mechanical structure, adapting to vibration scenarios without the need for an additional locking mechanism.

[0033] Preferably, in any of the above solutions, the fastening protective plate 5 is bonded to the four sides of the plug body 1, and the fastening protective plate 5 has a locking groove 11 inside to fix the sealing sheet 6 and the corrugated sealing sheet 7.

[0034] The above technical solution is adopted: the fastening protective plate 5 (epoxy resin board) is bonded to the four sides of the plug body 1 with environmentally friendly glue to form a ring-shaped insulating barrier. Its core function is to achieve insulation protection of the plug and fix the component. Its function is to isolate the plug body (conductive part) from the external non-conductive structure to avoid short circuit. At the same time, its internal locking groove 11 provides installation slots for the closed thin plate 6 and the corrugated sealing plate 7. The locking groove 11 is opened along the four sides of the protective plate.

[0035] The core function is to fix the sealing sheet and the corrugated sealing sheet. Its purpose is to ensure a tight connection between the sheet and the protective sheet through the snap-fit, preventing the sheet from falling off. At the same time, the depth of the groove ensures that the sheet does not protrude from the surface of the protective sheet after snapping, so as not to affect insertion and removal. Operating principle: The fastening protective sheet 5 blocks current leakage through the insulating material to protect the operator's safety. The snap-fit ​​groove 11 fixes the subsequent sealing components through mechanical snap-fit, forming a double protection of "insulation + sealing". Operating process: When bonding the protective sheet, first apply glue to the four sides of the plug body 1, align the position and press. When snapping the sealing sheet 6 and the corrugated sealing sheet 7, align the fastening strip / elastic fastening strip with the snap-fit ​​groove 11 and apply force to complete the snap-fit.

[0036] Preferably, the sealing sheet 6 includes an elastic sheet 61 covering the recessed wavy spring sheet 2 and a fastening strip 62 for locking and fixing. The two ends of the elastic sheet 61 are fixedly connected to the fastening strip 62, which is engaged in the locking groove 11 of the fastening protective sheet 5. The elastic sheet 61 is attached to one end face of the pin body 1 and located on one side of the recessed wavy spring sheet 2.

[0037] The above technical solution is adopted: the elastic sheet 61 of the sealing sheet 6 covers the surface of the recessed wavy spring sheet 2 at one end of the plug body 1. Its core function is to seal the gap between the recessed spring sheet and the body. Its function is to prevent dust and moisture from entering through the gap, and to prevent the spring sheet from getting damp and oxidized or stuck by debris. The elastic material ensures that the sheet expands and contracts synchronously with the deformation of the spring sheet, without affecting the elasticity of the spring sheet. The fastening strips 62 at both ends of the elastic sheet 61 (integrated with the sheet) are engaged in the engagement groove 11 of the fastening protective sheet 5.

[0038] The core function is to fix the elastic sheet, ensuring precise alignment between the sheet and the recessed spring, preventing sheet misalignment and sealing failure. Simultaneously, the rigidity of the retaining strip maintains the sheet's shape, preventing excessive stretching with spring deformation. Operating principle: The elastic sheet 61 tightly covers the recessed spring, forming a physical barrier. The retaining strip 62 fixes the sheet's position through the engagement groove 11. When the spring deforms, the sheet deforms elastically in sync, maintaining a seal. Operation process: During installation, align the retaining strip 62 with the engagement groove 11 and apply force to complete engagement, ensuring the elastic sheet 61 completely covers the recessed spring. When the spring deforms, the sheet is compressed, causing localized deformation. After deformation recovery, the sheet returns to its original position. During use, the sheet prevents foreign objects from entering, and the retaining strip maintains the sheet's position.

[0039] Preferably, in any of the above embodiments, the corrugated sealing sheet 7 includes a protective rubber pad 71 covering the protruding corrugated spring sheet 2 and an elastic fastening strip 72 for locking and fastening. The two ends of the protective rubber pad 71 are fixedly connected to the elastic fastening strip 72. The protective rubber pad 71 is attached to the surface of the protruding corrugated spring sheet 2 and the pin body 1. The elastic fastening strip 72 is locked inside the locking groove 11. The compression block 8 is fixedly connected to one end of the elastic fastening strip 72 and is located inside the fastening protective sheet 5.

[0040] The above technical solution is adopted: the protective gasket 71 of the corrugated sealing sheet 7 (made of nitrile rubber, oil-resistant and water-resistant) is attached to the protruding corrugated spring 2 and the surface of the main body at the other end of the plug body 1, and has a corrugated structure (consistent with the corrugated spring). Its core function is to seal the gap between the protruding spring and the main body. The function is that through the corrugated fitting design, even if the spring is deformed, the gasket can still cover tightly to prevent foreign matter from entering. At the same time, the elastic buffer spring of rubber material is used to avoid collision with the interface and prevent damage to the spring.

[0041] The elastic fastening strips 72 (integrated with the rubber pad) at both ends of the protective rubber pad 71 engage with the engaging grooves 11 of the fastening protective plate 5. Their core function is to fix the protective rubber pad, ensuring precise alignment between the rubber pad and the protruding spring piece, and preventing the rubber pad from shifting and causing weak sealing areas. The compression block 8 at one end of the elastic fastening strip 72 is fixed inside the fastening protective plate 5. Its core function is to enhance the tensile strength of the fastening strip, preventing stretching and deformation of the fastening strip due to long-term insertion and removal, and maintaining engagement stability. Operating principle: The protective rubber pad 71 adapts to the shape of the protruding spring piece through a wave-shaped structure to achieve dynamic sealing. The elastic fastening strip 72 fixes the rubber pad through the engaging groove. The compression block 8 enhances the tensile strength of the fastening strip and prevents deformation. Operation process: During installation, align the elastic fastening strip 72 with the engaging groove 11 and apply force to complete the engagement. The compression block 8 is embedded inside the protective plate along with the fastening strip. When the spring piece deforms, the protective rubber pad expands and contracts synchronously to maintain the seal. During insertion and removal, the compression block prevents the fastening strip from stretching, ensuring that the position of the rubber pad remains unchanged.

[0042] The working principle of this wavy butterfly-shaped connector is as follows: First, the wavy spring piece 2, made of elastic metal, is fitted into the connecting groove 10 in the middle of the plug body 1 through an interference fit. After welding and fixing, the spring piece at one end of the plug body is recessed inward and the other end protrudes outward, forming a two-way contact structure. Then, the butterfly fastening piece 3 is vertically welded to one side of the plug body, with the plug parts 4 integrally formed at both ends facing the plug body. Subsequently, insulating material fastening protective pieces 5 are glued to the four sides of the plug body. Through the locking groove 11 inside the protective piece, the sealing sheet 6 and the wavy sealing piece 7 are respectively locked and fixed. The elastic sheet 61 of the sealing sheet covers the recessed spring piece, the fastening strip 62 is fitted into the locking groove, and the protective rubber gasket 71 of the wavy sealing piece is attached to the protruding spring piece. The elastic fastening strip 72 is inserted into the engagement groove, and the compression block 8 is simultaneously fixed to one end of the elastic fastening strip to enhance tensile strength. In use, the pin is inserted into the external interface. The vertical baffles 9 at both ends of the pin body 1 first contact the interface limiting surface to control the insertion depth. The butterfly fastening piece 3 is squeezed and deformed by the interface groove and then springs open and engages. The plug piece 4 is simultaneously inserted into the interface positioning hole to form a double fastening. The concave and convex wavy spring pieces 2 contact the corresponding surfaces of the interface respectively. They are squeezed and deformed in a wavy shape, storing elastic potential energy and forming a stable contact pressure. The sealing sheet and the wavy sealing piece expand and contract synchronously with the deformation of the spring pieces to prevent foreign objects from entering. All structures work together to achieve stable conductivity, elastic contact and insulation protection of the pin.

[0043] Compared with the prior art, the present invention has the following advantages: 1. A wavy spring piece 2 made of elastic metal material is added to the middle of the butterfly plug. The wavy structure of the spring piece 2 and the elasticity of its own material store a certain amount of elastic recovery for the butterfly plug, so that the butterfly plug can maintain its stable recovery performance during long-term use. In addition, vertical plug parts 4 are set at both ends of the butterfly fastening piece 3 of the butterfly plug. The plug parts 4 are used to fix the plastic parts, increase the stability after assembly, avoid swinging after assembly, further enhance the locking and fastening ability of the butterfly plug connection, and further improve the stability of the butterfly plug installation connection, which is conducive to ensuring the stability and safety of the butterfly plug in long-term use.

[0044] 2. An insulating protective plate 5 is installed on the surface of the butterfly plug, and the protective plate 5 is used to fasten the sealing sheet 6 and the corrugated sealing sheet 7. The sealing sheet 6 and the corrugated sealing sheet 7 seal and protect the corrugated spring 2, preventing foreign objects from entering through the gap between the corrugated spring 2 and the plug body 1, thus ensuring the safety of the butterfly plug.

Claims

1. A wave-shaped butterfly-shaped insert, characterized in that: The device includes a plug body (1) made of conductive metal, a corrugated spring piece (2) made of elastic metal fixedly connected to the middle of the plug body (1), a butterfly fastening piece (3) for fastening is provided on one side of the corrugated spring piece (2), a plug piece (4) for fastening is fixedly connected to one end of the butterfly fastening piece (3), a fastening protective piece (5) made of insulating material is fixedly installed at both ends of the plug body (1), a sealing sheet (6) covering the corrugated spring piece (2) is fixedly installed at one end of the fastening protective piece (5), a corrugated sealing piece (7) made of insulating material is fixedly installed at the other end of the fastening protective piece (5), and a compression block (8) for fastening is fixedly installed at both ends of the corrugated sealing piece (7).

2. The wave-shaped butterfly pin as described in claim 1, characterized in that: The two ends of the plug body (1) are provided with vertical baffles (9) with rounded corners, and the middle part of the plug body (1) is provided with a connecting groove (10) for fixing the wave-shaped spring piece (2).

3. The wave-shaped butterfly pin as described in claim 2, characterized in that: The wavy spring piece (2) at one end of the plug body (1) is recessed inward, and the wavy spring piece (2) at the other end of the plug body (1) is protruding outward. The size of the wavy spring piece (2) is smaller than the size of the plug body (1).

4. The wave-shaped butterfly pin as described in claim 3, characterized in that: The width of the butterfly fastener (3) is smaller than the width of the pin body (1). The butterfly fastener (3) and the pin body (1) are vertically distributed. The plug (4) is located at both ends of the butterfly fastener (3) away from the pin body (1). The plug (4) and the butterfly fastener (3) are vertically distributed and located on the side close to the pin body (1).

5. A wave-shaped butterfly pin as described in claim 4, characterized in that: The fastening protective plate (5) is bonded to the four sides of the plug body (1), and the fastening protective plate (5) has a locking groove (11) inside to fix the sealing sheet (6) and the corrugated sealing sheet (7).

6. The wave-shaped butterfly pin as described in claim 5, characterized in that: The closed sheet (6) includes an elastic sheet (61) covering the recessed wavy spring sheet (2) and a fastening strip (62) for locking and fixing. The two ends of the elastic sheet (61) are fixedly connected to the fastening strip (62). The fastening strip (62) is locked inside the locking groove (11) of the fastening protective sheet (5). The elastic sheet (61) is attached to one end face of the pin body (1) and located on one side of the recessed wavy spring sheet (2).

7. A wave-shaped butterfly pin as described in claim 6, characterized in that: The corrugated sealing sheet (7) includes a protective rubber pad (71) covering the protruding corrugated spring sheet (2) and an elastic fastening strip (72) for locking and fastening. The protective rubber pad (71) is fixedly connected to the two ends of the elastic fastening strip (72). The protective rubber pad (71) is attached to the surface of the protruding corrugated spring sheet (2) and the pin body (1). The elastic fastening strip (72) is locked inside the locking groove (11). The squeezing block (8) is fixedly connected to one end of the elastic fastening strip (72) and located inside the fastening protective sheet (5).

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