Decorative lamp

Abstract

The utility model relates to a decorative lamp which comprises a light-emitting lamp wick, an isolation column and a sealing rubber pipe. A pin is arranged at the lower end of the light-emitting lamp wick; grooves are respectively formed in the left and right ends of the isolation column; the joints of the pins and the wires are located in the grooves; fins are arranged on the two side edges of the isolation column; the sealing rubber pipe sleeves the outer side of the isolation column; and after the sealing rubber tube and the isolation column are heated to respective deformation critical points, the fins are softened, and the sealing rubber tube automatically shrinks to enable the two opposite fins to be close to each other, so that the connected pins and wires are locked and sealed in the grooves. The decorative lamp is ingenious in design, after the sealing rubber pipe and the isolation column are both heated, the fins of the isolation column are softened, the sealing rubber pipe is heated and then automatically contracts and extrudes the softened fins, the fins are extruded towards the interior of the groove, the connecting positions of the wires and the pins are firmly locked and wrapped in the groove, the purposes of double sealing and double locking are achieved, and the service life of the decorative lamp is prolonged. And the sealing performance is excellent, and the connection between the pins and the wires is firmer.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of lighting equipment more particularly, relate to a decorative lamp. BACKGROUND

[0002] The existing decorative lamp (such as LED lamp string) is usually composed of lampwick, wire and encapsulation structure. In the traditional technology, the connection of lampwick pin and wire adopts the mode of direct injection sealing after welding, and this injection fixed mode is easy to produce bubble or gap, and the sealing property is not good, leading to water vapor penetration, and causing short circuit or oxidation.

[0003] Therefore, an urgent need exists for a decorative lamp capable of realizing reliable sealing. UTILITY MODEL CONTENT

[0004] The utility model provides a decorative lamp, realizes the self-locking sealing of pin and wire through the cooperation of isolation column and heat shrinkable sealing rubber pipe, and simultaneously optimizes the shell structure to improve assembly efficiency and direction identification.

[0005] The utility model discloses a decorative lamp, including luminous lampwick, isolation column and sealing rubber pipe, the lower end of luminous lampwick is equipped with two pins and is respectively with two wires one-to-one cooperation electric connection, the left and right ends of isolation column are along its length direction respectively equipped with the recess that corresponds with two pins one-to-one, the junction of pin and wire is located in recess, the both sides of isolation column are equipped with the fin in two recesses, sealing rubber pipe is covered in the outside of isolation column, after the heat of sealing rubber pipe and isolation column reaches respective shape change critical point, the fin softens, and sealing rubber pipe automatically shrinks and makes the two fins close to each other and lock the pin and wire connected in recess tightly.

[0006] The utility model discloses a decorative lamp, wherein, at least one recess in the two recesses is provided with a resistor; the resistor is electrically connected with the pin or the wire.

[0007] The utility model discloses a decorative lamp, wherein, the upper surface of the isolation column abuts against the lower surface of the luminous lampwick.

[0008] The utility model discloses a decorative lamp, wherein, the length of the sealing rubber pipe is greater than the length of the isolation column; the lower end portion of the luminous lampwick, the pin and the upper end portion of the wire are all located in the coverage range of the sealing rubber pipe.

[0009] The utility model discloses a decorative lamp, wherein, the decorative lamp still includes the sealing rubber pipe, the isolation column and the light emitting lampwick sealed fixed shell, and the upper end of light emitting lampwick at least a part protrudes in the shell outside,

[0010] The utility model discloses a decorative lamp, wherein, the shell is equipped with the first passageway for the light emitting lampwick insertion, and the second passageway for the isolation column and the sealing rubber pipe insertion after locking and sealing, and the first passageway communicates with the second passageway,

[0011] The utility model discloses a decorative lamp, wherein, the bottom surface of second passageway is equipped with the positioning surface of light emitting lampwick positioning and supporting light emitting lampwick, and the first passageway and the outer contour of light emitting lampwick are adapted, and the second passageway and the outer contour of the softened isolation column are adapted,

[0012] The utility model discloses a decorative lamp, wherein, the first passageway and the second passageway are sequentially arranged along the length direction of shell, and the first passageway and the second passageway are coaxially arranged,

[0013] The utility model discloses a decorative lamp, wherein, the front and rear two outer side surfaces of isolation column are first plane, and the front and rear two side inner walls of second passageway are second plane adapted with two first plane,

[0014] The utility model discloses a decorative lamp, wherein, the shell is the cylindrical body structure, and the lower end or upper end of the front and rear two outer side surfaces of shell is equipped with directional identification part, and the directional identification part includes tactile perception surface.

[0015] The utility model discloses a decorative lamp, wherein, the decorative lamp still includes the lampshade of detachable connection with shell and is used for protecting light emitting lampwick.

[0016] The utility model has the advantages that the decorative lamp is ingenious, the connecting place of wire and pin is placed in the recess of isolation column, and the sealing rubber pipe is arranged on the outside of isolation column, the wing of isolation column softens after heating, the sealing rubber pipe automatically shrinks and extrudes the softened wing after heating, the wing is extruded into the recess, and the connecting place of wire and pin is locked and wrapped in the recess, the gap exists between the wing, wire and pin, and no gap exists between the wing and sealing rubber pipe, so that the double sealing and double locking purposes are achieved, the sealing property is excellent, and the connection between pin and wire is more firm. DRAWINGS

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a decorative lamp according to a preferred embodiment of the present utility model.

[0019] Figure 2 This is a three-dimensional breakdown of a decorative lamp in a preferred embodiment of the present invention. Figure One (Without lampshade).

[0020] Figure 3 yes Figure 1 A cross-sectional view of the inner shell 16;

[0021] Figure 4 This is a three-dimensional breakdown of a decorative lamp in a preferred embodiment of the present invention. Figure Two (with lampshade). Detailed Implementation

[0022] The terms "first," "second," "third," and "fourth," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0023] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] "Multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0025] Moreover, the terms "upper, lower, front, rear, left, right, upper end, lower end, longitudinal direction" and the like indicating the orientation are all referenced to the attitude position of the device or equipment described in the present scheme when in normal use.

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the following will combine the technical scheme in the embodiments of the present application to make a clear and complete description. Obviously, the described embodiments are part of the embodiments of the present application, not all. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the protection scope of the present application.

[0027] The decorative lamp of the preferred embodiment of the present application, as shown in Figures 1-2 The lower end of the light-emitting lamp wick 11 is provided with two pins 111 which are respectively electrically connected with two wires 14 in one-to-one correspondence. The left and right ends of the isolation column 12 are respectively provided with grooves 121 corresponding to the two pins 111 along the length direction. The connection between the pin 111 and the wire 14 is located in the groove 121. The isolation column 12 is provided with a wing 122 on both sides of the two grooves 121. The sealing rubber tube 13 is sleeved outside the isolation column 12. After the sealing rubber tube 13 and the isolation column 12 are heated to their respective deformation critical points, the wing 122 softens, and the sealing rubber tube 13 automatically shrinks to make the two wings 122 close to each other, thereby locking and sealing the connected pin 111 and wire 14 in the groove 121.

[0028] In the present embodiment, when the sealing rubber tube 13 shrinks under heat, the wings 122 on both sides of the isolation column 12 soften synchronously, and the elastic contraction force of the rubber tube drives the wings to deform into the groove 121. After cooling, a physical buckle structure is formed, forming a "plastic locking (wing) + elastic wrapping (sealing rubber tube)" double-sealing barrier. Not only can the wire and pin connection point be mechanically locked in the groove 121 with a tensile strength of more than 10N (traditional process ≤5N) to resist strong wind vibration or external pulling, but also can completely isolate water vapor from penetrating into the connection between the wire 14 and the pin 111.

[0029] In the present embodiment, the deformation critical temperature of the rubber tube 13 and the isolation column 12 is matched (for example, the rubber tube contraction temperature is 110°C and the isolation column softening temperature is 105°C). Through a single heat sealing operation, sealing and locking can be completed synchronously, and the injection mold, multiple dispensing or curing waiting links are omitted, and the working efficiency is further improved.

[0030] This decorative light is ingeniously designed. By placing the connection between the wire and the pin within the groove of the insulating post, and placing the sealing tube on the outside of the insulating post, both the sealing tube and the insulating post are heated. The fins of the insulating post soften, and the sealing tube automatically contracts and squeezes the softened fins, causing the fins to press into the groove and thus firmly lock and enclose the connection between the wire and the pin within the groove. There are gaps between the fins and the wire and the pin, and there are also no gaps between the fins and the sealing tube, achieving a double seal and double locking. This not only provides excellent sealing performance but also makes the connection between the pin and the wire more secure.

[0031] Furthermore, in at least one of the two grooves 121, a resistor 15 is provided; the resistor 15 is electrically connected to the pin 111 or the wire 14. The connection points of the resistor 15 are also double-sealed by the sealing tube 13 and the wing 122, preventing water vapor and salt spray from directly contacting the resistor pin solder joints, thus significantly improving circuit stability.

[0032] In this embodiment, the isolation column 12 is a long strip structure; the upper surface of the isolation column 12 abuts against the lower surface of the light-emitting wick 11, which can evenly distribute the axial stress generated by wick vibration or external impact to the entire contact surface, further improving its bending and seismic resistance compared to a point-supported structure. In this embodiment, the cross-section of the isolation column 12 is an "I"-shaped section, which is structurally stable and can also reduce weight while ensuring structural strength.

[0033] Furthermore, the length of the sealing tube 13 is greater than the length of the isolation post 12; the lower part of the light-emitting wick 11, the pin 111 and the upper part of the wire 14 are all within the coverage area of ​​the sealing tube 13, forming a full-path sealing protection, completely blocking the path of water vapor to enter the interior of the decorative lamp along the outer surface.

[0034] To enhance the stability of the decorative lamp's internal structure, it also includes a housing 16 that seals and fixes the sealing tube 13, the isolation column 12, and the light-emitting wick 11. At least a portion of the upper end of the light-emitting wick 11 protrudes beyond the housing 16. The housing 16 completely encloses and fixes the sealing tube 13, the isolation column 12, and the lower part of the wick 11, forming a rigid support frame that improves impact resistance. Furthermore, the inner wall of the housing 16 and the outer surface of the sealing tube 13 form a secondary sealing interface through an interference fit, which, combined with the sealing properties of the tube itself, achieves IP67 dustproof and waterproof rating.

[0035] like Figure 3As shown, the housing 16 has a first channel 161 for inserting the light-emitting wick 11, and a second channel 162 for inserting the locking and sealing isolation post 12 and sealing tube 13; the first channel 161 and the second channel 162 are connected, facilitating assembly. Optionally, the cross-section of the second channel gradually narrows from top to bottom, and the compressive force on the wire gradually increases from top to bottom, forming a screwless self-locking mechanism that firmly clamps the wire in the housing.

[0036] Furthermore, the bottom surface of the second channel 162 is provided with a positioning surface 163 for positioning and supporting the light-emitting lamp core 11, thereby positioning the light-emitting lamp core and preventing it from being inserted improperly; the first channel 161 is adapted to the outer contour of the light-emitting lamp core 11, and the second channel 162 is adapted to the softened outer contour of the isolation column, and the connection is tight; in this embodiment, the channel size of the first channel 161 is larger than the channel size of the second channel 162.

[0037] Furthermore, the first channel 161 and the second channel 162 are arranged sequentially along the length of the outer casing 16, and the first channel 161 and the second channel 162 are coaxially arranged; the size is small and the installation is convenient.

[0038] Furthermore, the front and rear outer surfaces of the isolation post 12 are both first planes 123; the front and rear inner walls of the second channel 162 are respectively second planes 164 that are adapted to the two first planes 123; the first planes 123 of the isolation post 12 and the second planes 164 of the second channel 162 form surface contact, thereby realizing the positioning of the isolation post, eliminating the circumferential gap of the traditional circular fit, and the isolation post 12 will not easily rotate in the outer casing.

[0039] Furthermore, the outer shell 16 has a cylindrical structure; the lower or upper ends of the front and rear outer surfaces of the outer shell 16 are provided with orientation identification parts; the orientation identification parts include tactile sensing surfaces 165; the tactile sensing surfaces can be flat surfaces, curved surfaces, or textured contact surfaces that are recessed towards the center of the outer shell 16; the tactile sensing surfaces 165 provide tactile feedback through the recessed flat surfaces or textured contact surfaces, allowing the operator to quickly identify the front and back directions of the outer shell 16 without visual assistance, thereby adjusting the direction of the sealed isolation pillar and avoiding sealing failure caused by incorrect installation direction of the isolation pillar.

[0040] Optionally, such as Figure 4 As shown, the decorative lamp also includes a lampshade 17 that is detachably connected to the housing 16 to protect the light-emitting wick 11; wherein, the lampshade 17 is made of a light-transmitting material; the lampshade 17 can be connected to the housing 16 through a detachable structure commonly found in the prior art, such as a snap-fit ​​structure, a threaded connection structure or a magnetic structure; it is easy to assemble and disassemble.

[0041] It should be understood that modifications or variations can be made according to the above description by those of ordinary skill in the art, and all such modifications and variations are intended to be within the scope of the present application as defined by the claims appended hereto.

Claims

1. A decorative lamp, characterized in that, The device includes a light-emitting diode, an isolation column, and a sealing tube. The lower end of the light-emitting diode has two pins that are electrically connected to two wires respectively. The left and right ends of the isolation column have grooves corresponding to the two pins along its length. The connection points between the pins and the wires are located within the grooves. The isolation column has fins on both sides of the two grooves. The sealing tube is sleeved on the outside of the isolation column. When the sealing tube and the isolation column are heated to their respective deformation critical points, the fins soften, and the sealing tube automatically contracts, causing the two fins to move closer together, thereby locking and sealing the connected pins and wires within the grooves.

2. The decorative lamp according to claim 1, characterized in that, In both grooves, at least one groove contains a resistor; the resistor is electrically connected to the pin or the wire.

3. The decorative lamp according to claim 1 or 2, characterized in that, The length of the sealing tube is greater than the length of the isolation column; the lower part of the light-emitting lamp core, the pin, and the upper part of the wire are all located within the coverage area of ​​the sealing tube.

4. The decorative lamp according to claim 3, characterized in that, The decorative lamp also includes a housing that seals and fixes the sealing tube, the isolation column, and the light-emitting wick; at least a portion of the upper end of the light-emitting wick protrudes outside the housing.

5. The decorative lamp according to claim 4, characterized in that, The housing has a first channel for inserting the light-emitting lamp core, and a second channel for inserting the locking and sealing post and the sealing tube after locking and sealing; the first channel and the second channel are connected.

6. The decorative lamp according to claim 5, characterized in that, The bottom surface of the second channel is provided with a positioning surface for positioning and supporting the light-emitting lamp core; the first channel is adapted to the outer contour of the light-emitting lamp core, and the second channel is adapted to the softened outer contour of the isolation column.

7. The decorative lamp according to claim 5 or 6, characterized in that, The first channel and the second channel are arranged sequentially along the length of the outer shell, and the first channel and the second channel are coaxially arranged.

8. The decorative lamp according to claim 7, characterized in that, The front and rear outer surfaces of the isolation column are both first planes; the front and rear inner walls of the second channel are respectively second planes adapted to the two first planes.

9. The decorative lamp according to claim 8, characterized in that, The outer shell has a cylindrical structure; the lower or upper ends of the front and rear outer surfaces of the outer shell are provided with orientation identification parts; the orientation identification parts include tactile sensing surfaces.

10. The decorative lamp according to any one of claims 4-6, 8 and 9, characterized in that, The decorative lamp also includes a lampshade that is detachably connected to the housing to protect the light-emitting wick.

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