Quick connector of LED lamp string

Abstract

The utility model discloses a quick connector of an LED (light-emitting diode) lamp string, which relates to the field of electrical connection devices and comprises a silica gel waterproof ring, a first connector, a cylindrical plug, a lock catch lug, a second connector, a cylindrical slot and a locking bump component. The other end of the first connecting piece is used for connecting a first wire, a metal slot is formed in one end, far away from the first connecting piece, of the cylindrical plug, and the lock catch lugs are symmetrically distributed in the circumferential direction of the cylindrical plug; one end of the second connecting piece is connected with the cylindrical slot in a sleeved mode, the other end of the second connecting piece is used for being connected with a second electric wire, a metal connector is connected into the cylindrical slot in an embedded mode, the multiple locking protruding block assemblies are symmetrically distributed in the circumferential direction of the cylindrical slot, and the silica gel waterproof ring is arranged on the outer surface of the cylindrical plug in a sleeving mode. According to the utility model, the rapid plugging operation among a plurality of LED lamp strings is realized, and meanwhile, the sealing and waterproof effects of the connector are improved.

Description

Technical Field

[0001] This utility model relates to the field of electrical connection devices, and in particular to a quick connector for LED lighting strings. Background Technology

[0002] LED string lights are widely used in architectural outline lighting, holiday decorations, and landscaping due to their energy-saving, long lifespan, and flexible deployment characteristics. In complex outdoor environments, string lights need to be frequently modularized or disassembled to adapt to different installation requirements. As the core component for string light connection, the connector's waterproof performance, connection stability, and ease of operation directly affect the reliability and maintenance efficiency of the lighting system.

[0003] Existing connectors have poor sealing performance during the insertion process, especially in humid environments, which can easily lead to moisture intrusion and cause short circuits or poor contact. In addition, the locking structure of existing connectors is complicated to operate during installation or disassembly, requiring additional tools and reducing ease of use.

[0004] Therefore, how to develop a quick connector for LED light strings to enable rapid plug-in and unplugging operations between multiple LED light strings, while improving the sealing and waterproofing effect of the connector, has become a technical problem that urgently needs to be solved by those in this field. Utility Model Content

[0005] The purpose of this invention is to provide a quick connector for LED light strings, enabling rapid plugging and unplugging operations between multiple LED light strings, while improving the sealing and waterproofing effect of the connector.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] This utility model discloses a quick connector for LED light strings, comprising a silicone waterproof ring and a first connecting component and a second connecting component that interlock with each other.

[0008] The first connecting assembly includes a first connector, a cylindrical plug, and locking lugs. One end of the first connector is sleeved and connected to the cylindrical plug, and the other end of the first connector is used to connect a first wire. A metal slot is provided at the end of the cylindrical plug away from the first connector. The first wire passes through the first connector and the cylindrical plug in sequence and is electrically connected to the metal slot. A plurality of locking lugs are symmetrically distributed around the circumference of the cylindrical plug.

[0009] The second connecting assembly includes a second connector, a cylindrical slot, and a locking protrusion assembly. One end of the second connector is sleeved and connected to the cylindrical slot, and the other end of the second connector is used to connect a second wire. A metal connector is embedded in the cylindrical slot. The second wire passes through the second connector and is electrically connected to the metal connector. A plurality of locking protrusion assemblies are symmetrically distributed along the circumference of the cylindrical slot, and their number and arrangement correspond to the locking lugs.

[0010] The silicone waterproof ring is fitted onto the outer surface of the cylindrical plug. When the cylindrical plug is inserted into the cylindrical slot, the metal slot and the metal connector are inserted into each other to form a conductive contact. The locking lug is engaged with the locking protrusion assembly. The inner and outer walls of the silicone waterproof ring are sealed and fitted to the outer circumferential surface of the cylindrical plug and the inner circumferential surface of the cylindrical slot, respectively.

[0011] Preferably, the outer peripheral surface of the silicone waterproof ring is provided with multiple annular protrusions at equal intervals along the axial direction.

[0012] Preferably, the locking protrusion assembly includes a tapered protrusion and a limiting plate. Two tapered protrusions are symmetrically arranged on the outer periphery of the cylindrical slot. The limiting plates are arranged in pairs on the left and right sides of the tapered protrusions, and the distance between two adjacent limiting plates matches the width of the locking lug.

[0013] Preferably, the inclined surface of the tapered protrusion is positioned facing the opening end of the cylindrical slot.

[0014] Preferably, the cylindrical plug is provided with a limiting boss, which is used to abut against the open end of the cylindrical slot.

[0015] Preferably, one end of the locking lug is fixedly connected to the limiting boss, and the other end of the locking lug is set with a rounded corner.

[0016] Preferably, the locking lug has a limiting groove that matches the conical protrusion, and the conical protrusion engages with the limiting groove.

[0017] Preferably, the inner cavity of the cylindrical slot is configured with a variable diameter structure.

[0018] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0019] 1) Through the multi-seal design of the silicone waterproof ring, the annular boss and the inner wall of the cylindrical slot form a tight fit, which significantly improves the waterproof performance of the plug-in part and ensures that the plug-in part can still maintain stable operation in a humid environment.

[0020] 2) The locking lug and tapered protrusion engagement design ensures reliable mechanical locking of the connector after insertion, preventing accidental disengagement due to external force or vibration and ensuring connection stability; at the same time, it facilitates user insertion and removal operations and improves the ease of use of the connector.

[0021] 3) The use of highly elastic and flexible hard and soft plastic injection molding process, combined with the protection of silicone waterproof ring, not only improves the durability of the connector, but also effectively protects the connection parts of the wires and extends the service life of the device. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] Figure 1 This is an exploded view of the quick connector structure for LED lighting fixtures and strings according to this utility model. Figure 1 ;

[0024] Figure 2 This is an exploded view of the quick connector structure for LED lighting fixtures and strings according to this utility model. Figure 2 ;

[0025] Figure 3 This is a schematic diagram of the structure of a quick connector for LED lighting strings according to this utility model.

[0026] Figure 4 This utility model Figure 3 A cross-sectional view along the AA direction.

[0027] Explanation of reference numerals in the attached drawings: 1. Silicone waterproof ring; 2. First connector; 3. Cylindrical plug; 4. Locking lug; 401. Limiting groove; 5. Metal slot; 6. Second connector; 7. Cylindrical slot; 8. Locking protrusion assembly; 801. Conical protrusion; 802. Limiting plate; 9. First wire; 10. Metal connector; 11. Second wire; 12. Limiting boss. Detailed Implementation

[0028] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0029] like Figure 1-4 As shown, a quick connector for LED light strings includes a silicone waterproof ring 1 and a first connecting component and a second connecting component that interlock with each other.

[0030] The first connecting component includes a first connector 2, a cylindrical plug 3, and locking lugs 4. One end of the first connector 2 is sleeved and connected to the cylindrical plug 3, and the other end of the first connector 2 is used to connect a first wire 9. A metal slot 5 is provided at the end of the cylindrical plug 3 away from the first connector 2. The first wire 9 passes through the first connector 2 and the cylindrical plug 3 in sequence and is electrically connected to the metal slot 5. A plurality of locking lugs 4 are symmetrically distributed around the cylindrical plug 3.

[0031] The second connecting assembly includes a second connector 6, a cylindrical slot 7, and a locking protrusion assembly 8. One end of the second connector 6 is sleeved and connected to the cylindrical slot 7, and the other end of the second connector 6 is used to connect a second wire 11. A metal connector 10 is embedded in the cylindrical slot 7. The second wire 11 passes through the second connector 6 and is electrically connected to the metal connector 10. A plurality of locking protrusion assemblies 8 are symmetrically distributed around the cylindrical slot 7, and their number and arrangement correspond to the locking lug 4.

[0032] The silicone waterproof ring 1 is fitted onto the outer surface of the cylindrical plug 3. When the cylindrical plug 3 is inserted into the cylindrical slot 7, the metal slot 5 and the metal connector 10 are inserted into each other to form a conductive contact. The locking lug 4 is engaged with the locking protrusion assembly 8. The inner and outer walls of the silicone waterproof ring 1 are sealed and fitted to the outer circumferential surface of the cylindrical plug 3 and the inner circumferential surface of the cylindrical slot 7, respectively.

[0033] Specifically, the cylindrical plug 3, locking lug 4, and limiting boss 12 are manufactured using a one-time injection molding process, and the injection molding material is a high-elasticity, bend-resistant hard plastic; the first connector 2 is combined with the cylindrical plug 3 through a secondary injection molding process to form an integrated structure, and the first connector 2 is made of a high-elasticity, bend-resistant soft plastic; the first connector 2 is made of soft plastic injection molding, which can effectively wrap and fix the connection part between the first wire 9 and the cylindrical plug 3, while achieving waterproof function and protection for the first wire 9.

[0034] Specifically, the conical protrusion 801, the limiting plate 802, and the cylindrical slot 7 are manufactured using a one-time injection molding process, and the injection molding material is a high-elasticity, bend-resistant hard plastic; the second connector 6 is combined with the cylindrical slot 7 through a secondary injection molding process to form an integrated structure, and the second connector 6 is made of a high-elasticity, bend-resistant soft plastic; the second connector 6 is made of soft plastic injection molding, which can effectively wrap and fix the connection part between the second wire 11 and the cylindrical slot 7, while achieving waterproof function and protection for the second wire 11.

[0035] Specifically, the outer circumferential surface of the silicone waterproof ring 1 is provided with multiple annular protrusions at equal intervals along the axial direction.

[0036] Specifically, when the cylindrical plug 3 is inserted into the cylindrical slot 7, the annular boss forms multiple sealing contacts with the inner wall of the cylindrical slot 7, thereby significantly improving the waterproof performance of the insertion part.

[0037] Specifically, the locking protrusion assembly 8 includes a conical protrusion 801 and a limiting plate 802. The two conical protrusions 801 are symmetrically arranged on the outer periphery of the cylindrical slot 7. The limiting plates 802 are arranged in pairs on the left and right sides of the conical protrusions 801, and the spacing between two adjacent limiting plates 802 matches the width of the locking lug 4.

[0038] Specifically, a guide channel is formed between two adjacent limiting plates 802, and the locking lug 4 is embedded in the guide channel and slides along the channel to achieve limiting guidance during the insertion process.

[0039] Specifically, the inclined surface of the tapered protrusion 801 is positioned facing the opening end of the cylindrical slot 7.

[0040] Specifically, the cylindrical plug 3 is provided with a limiting boss 12, which is used to abut against the open end of the cylindrical slot 7.

[0041] Specifically, one end of the locking lug 4 is fixedly connected to the limiting boss 12, and the other end of the locking lug 4 is set with a rounded corner.

[0042] Specifically, the locking lug 4 has a limiting groove 401 that matches the conical protrusion 801, and the conical protrusion 801 engages with the limiting groove 401.

[0043] Specifically, one side of the locking lug 4 is designed with a rounded corner to match the inclined surface of the conical protrusion 801. During the insertion process, the end of the locking lug 4 slides along the inclined surface of the conical protrusion 801, and the locking lug 4 undergoes elastic deformation under the squeezing action of the conical protrusion 801. When the end of the limiting groove 401 is aligned with the conical protrusion 801, the locking lug 4 is reset, the limiting groove 401 is sleeved on the conical protrusion 801, and the end of the limiting groove 401 and the end of the conical protrusion 801 form a snap-fit ​​engagement, thereby realizing the limiting and locking of the locking lug 4 and the conical protrusion 801.

[0044] Specifically, when it is necessary to disconnect the cylindrical plug 3 from the cylindrical slot 7, the user should simultaneously pry outwards the arc ends of the two locking lugs 4 to make the locking lugs 4 elastically deform and disengage from the limiting position of the conical protrusion 801; then the cylindrical plug 3 can be separated from the cylindrical slot 7.

[0045] Specifically, the inner cavity of the cylindrical slot 7 is configured with a variable diameter structure.

[0046] The usage process of this utility model is as follows:

[0047] First, the first connecting component and the second connecting component are plugged in and aligned. The operator must ensure that the cylindrical plug 3 of the first connecting component is aligned with the open end of the cylindrical slot 7 of the second connecting component, and at the same time, the position of the locking lug 4 corresponds one-to-one with the guide channel of the locking protrusion assembly 8 (formed by the limiting plate 802).

[0048] Secondly, a thrust is applied along the axial direction to insert the cylindrical plug 3 into the cylindrical slot 7. During this process, the arc end of the locking lug 4 first contacts the inclined surface of the conical protrusion 801 and slides along the inclined surface under the action of the thrust, forcing the locking lug 4 to undergo elastic deformation outward. At the same time, the silicone waterproof ring 1 on the cylindrical plug 3 gradually enters the cylindrical slot 7, and the multiple annular protrusions on its outer surface are tightly fitted with the inner wall of the cylindrical slot 7 to form multiple sealing contacts, thereby achieving the waterproof function of the insertion part.

[0049] Furthermore, as the insertion action continues, when the limiting groove 401 on the locking lug 4 moves to be fully aligned with the conical protrusion 801, the locking lug 4 returns to its original state due to elastic reset. At this time, the limiting groove 401 is fitted onto the conical protrusion 801, and its end forms a snap-fit ​​with the end of the conical protrusion 801, completing the limiting and locking of the locking lug 4 and the locking protrusion assembly 8. At the same time, the limiting protrusion 12 of the cylindrical plug 3 abuts against the open end of the cylindrical slot 7 to prevent over-insertion.

[0050] Then, after the insertion is completed, the metal slot 5 inside the cylindrical plug 3 and the metal connector 10 inside the cylindrical slot 7 are in complete contact and conduction, realizing a stable electrical connection between the first wire 9 and the second wire 11. At this time, the inner and outer walls of the silicone waterproof ring 1 are tightly fitted to the outer circumferential surface of the cylindrical plug 3 and the inner circumferential surface of the cylindrical slot 7, respectively, further enhancing the waterproof sealing performance.

[0051] Finally, when disconnection is required, the operator must simultaneously pry outwards the arc ends of the two locking lugs 4 to cause them to elastically deform and break free from the limiting constraint of the conical protrusion 801. Then, pull the first connecting component and the second connecting component in the opposite direction to allow the cylindrical plug 3 to smoothly exit from the cylindrical slot 7, thus completing the separation operation.

[0052] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0053] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A quick connector for LED lighting strings, characterized in that: It includes a silicone waterproof ring (1) and a first connecting component and a second connecting component that interlock with each other. The first connecting component includes a first connector (2), a cylindrical plug (3), and locking lugs (4). One end of the first connector (2) is sleeved and connected to the cylindrical plug (3), and the other end of the first connector (2) is used to connect a first wire (9). A metal slot (5) is provided at the end of the cylindrical plug (3) away from the first connector (2). The first wire (9) passes through the first connector (2) and the cylindrical plug (3) in sequence and is electrically connected to the metal slot (5). A plurality of locking lugs (4) are symmetrically distributed around the cylindrical plug (3). The second connecting component includes a second connector (6), a cylindrical slot (7), and a locking protrusion assembly (8). One end of the second connector (6) is sleeved and connected to the cylindrical slot (7), and the other end of the second connector (6) is used to connect a second wire (11). A metal connector (10) is embedded in the cylindrical slot (7). The second wire (11) passes through the second connector (6) and is electrically connected to the metal connector (10). A plurality of locking protrusion assemblies (8) are symmetrically distributed around the cylindrical slot (7), and their number and arrangement position correspond to the locking lug (4). The silicone waterproof ring (1) is fitted onto the outer surface of the cylindrical plug (3). When the cylindrical plug (3) is inserted into the cylindrical slot (7), the metal slot (5) and the metal connector (10) are inserted into each other to form a conductive contact. The locking lug (4) is engaged with the locking protrusion assembly (8). The inner and outer walls of the silicone waterproof ring (1) are sealed and fitted to the outer circumferential surface of the cylindrical plug (3) and the inner circumferential surface of the cylindrical slot (7), respectively.

2. The quick connector for LED lighting strings according to claim 1, characterized in that: The outer circumferential surface of the silicone waterproof ring (1) is provided with multiple annular protrusions at equal intervals along the axial direction.

3. The quick connector for LED lighting strings according to claim 2, characterized in that: The locking protrusion assembly (8) includes a conical protrusion (801) and a limiting plate (802). The two conical protrusions (801) are symmetrically arranged on the outer periphery of the cylindrical slot (7). The limiting plates (802) are arranged in pairs on the left and right sides of the conical protrusions (801), and the distance between two adjacent limiting plates (802) matches the width of the locking lug (4).

4. The quick connector for LED lighting strings according to claim 3, characterized in that: The tapered protrusion (801) is inclined on one side facing the opening end of the cylindrical slot (7).

5. A quick connector for LED lighting strings according to claim 4, characterized in that: The cylindrical plug (3) is provided with a limiting boss (12), which is used to abut against the open end of the cylindrical slot (7).

6. The quick connector for LED lighting strings according to claim 5, characterized in that: One end of the locking ear piece (4) is fixedly connected to the limiting boss (12), and the other end of the locking ear piece (4) is set with a rounded corner.

7. A quick connector for LED lighting strings according to claim 6, characterized in that: The locking lug (4) has a limiting groove (401) that matches the conical protrusion (801), and the conical protrusion (801) engages with the limiting groove (401).

8. A quick connector for LED lighting strings according to claim 5, characterized in that: The inner cavity of the cylindrical slot (7) is configured with a variable diameter structure.

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