Waterproof electronic candle

Abstract

The application discloses a waterproof electronic candle, comprising: a housing assembly comprising a candle tube, the candle tube comprising a first end and a second end in an up-and-down positional relationship; the candle tube is sleeved with the cover body, at the position of the first end, one of the candle tube and the cover body is provided with an annular groove, and the other one of the candle tube and the cover body is provided with an annular protrusion; the shell assembly further comprises a sealing piece, the sealing piece is contained in the annular groove, the annular protrusion makes contact with the sealing piece and is used for being connected with the candle tube and the cover body in a sealed mode, the waterproof performance of the electronic candle is enhanced, and the electronic candle can be conveniently used outdoors by a user.

Description

Technical Field

[0001] This application relates to the field of candles, and in particular to a waterproof electronic candle. Background Technology

[0002] Existing electronic candles have a tubular cover with openings at both ends around the candle tube to enhance its aesthetics. However, when electronic candles are used outdoors, rainwater can easily enter between the cover and the candle tube. Due to the lack of a sealing structure, rainwater may further seep into the inside of the candle tube, causing short circuits or component corrosion.

[0003] Therefore, it is necessary to improve existing electronic candles to avoid the aforementioned defects. Summary of the Invention

[0004] Based on this, this application provides an electronic candle with enhanced waterproof performance, making it convenient for users to use outdoors.

[0005] This application provides a waterproof electronic candle, comprising:

[0006] The housing assembly includes a candle tube, the candle tube having a first end and a second end positioned vertically;

[0007] A cover is fitted over the candle tube. At the first end, one of the candle tube or the cover is provided with an annular groove, and the other is provided with an annular protrusion.

[0008] The housing assembly also includes a seal that is housed in the annular groove, and the annular protrusion contacts the seal for sealing the connection between the candle tube and the cover.

[0009] In one embodiment,

[0010] The first end includes an end face, and the annular groove is formed at the edge of the end face facing upwards, and an annular flange is formed at the edge of the end face;

[0011] The cover has an annular protrusion facing downwards, and an annular groove is provided near the annular protrusion.

[0012] When the annular flange is accommodated in the annular groove, the annular protrusion contacts the seal.

[0013] In one embodiment, the cover includes a third end and a fourth end, the third end being flush with or substantially flush with the second end of the candle tube, and the fourth end extending beyond the first end of the candle tube. From the annular protrusion to the fourth end, the wall thickness of the cover gradually decreases.

[0014] In one embodiment,

[0015] The first end includes an end face, on which an annular water guide groove is provided. The water guide groove is set as a slope from the middle of the end face to the middle of the end face, and a water guide hole is provided in the water guide groove.

[0016] The housing assembly also includes a water guide tube that connects the water guide hole and the outside of the candle tube.

[0017] In one embodiment,

[0018] The candle tube has a hollow cavity inside, and the second end is open and connected to the hollow cavity;

[0019] The waterproof electronic candle also includes a mechanism assembly, which includes a PCBA board and a lamp holder. The PCBA board is disposed in the hollow cavity and extends through the first end. The lamp holder is disposed on the PCBA board.

[0020] In one embodiment, the first end includes an end face, and a receiving groove is provided on the end face. The receiving groove includes a groove bottom and a through hole is provided on the groove bottom. The PCBA board is disposed through the through hole. The housing assembly also includes a waterproof pad, which is disposed in the receiving groove and is interference-fitted with the receiving groove and the PCBA board.

[0021] In one embodiment, the area of ​​the through hole is smaller than the area of ​​the bottom of the groove, so as to form a supporting surface on the bottom of the groove for supporting the waterproof pad.

[0022] In one embodiment, the mechanism assembly further includes a battery box, which is electrically connected to the PCBA board. The battery box includes a box body and a waterproof cover. The box body is sealed on the second end of the candle tube, and the box body has a first opening facing downward. The waterproof cover is sealed on the first opening by a waterproof ring.

[0023] In one embodiment, the battery box includes a first peripheral wall that surrounds and forms the first opening. The waterproof cover includes a bottom wall and a second peripheral wall disposed on the bottom wall. The second peripheral wall has a waterproof groove facing the first peripheral wall. The waterproof ring is disposed in the waterproof groove and is sealed to the first peripheral wall.

[0024] In one embodiment, the waterproof ring includes multiple sealing layers, all of which are sealed to the first peripheral wall.

[0025] In one embodiment, the housing is sealed to the second end of the candle tube by an adhesive.

[0026] In one embodiment, the first peripheral wall extends horizontally outward and then bends upward to form a third peripheral wall, which abuts against the second end of the candle tube and is sealed to the second end of the candle tube by an adhesive.

[0027] In one embodiment, the housing further includes a top wall, a fourth peripheral wall, a battery, and a battery cover. The top wall and the fourth peripheral wall together form a battery cavity. The battery is disposed in the battery cavity. The battery cavity has a second opening facing downward. The battery cover is detachably disposed on the second opening. The fourth peripheral wall extends outward and connects to the first peripheral wall.

[0028] In one embodiment, the first end includes an end face, on which an annular water guide groove is provided, and from the middle position of the end face to the water guide groove is a slope from high to low, and a water guide hole is provided in the water guide groove;

[0029] A water outlet is provided at the edge of the box body. The outer shell assembly also includes a water guide pipe, which includes an inlet end and an outlet end. The inlet end is connected to the water guide hole, and the outlet end is connected to the water outlet hole.

[0030] In one embodiment, the water guide hole is connected to a water guide column, the water outlet hole is connected to a water outlet column, the water inlet is connected to the water guide column, and the water outlet is connected to the water outlet column.

[0031] In one embodiment, the battery box has multiple support legs at its bottom.

[0032] In one embodiment, the waterproof cover is also provided with an operating groove to facilitate the user to open the waterproof cover.

[0033] In one embodiment, the cover is transparent, and a string of lights is provided between the candle tube and the cover.

[0034] In one embodiment, the seal is provided as a sealing ring or an adhesive.

[0035] Based on the above description, in this application, the cover is fitted over the candle tube, with the first end of the candle tube facing the direction of rainwater falling. At the first end of the cover and the candle tube, one of them is provided with an annular groove, and the other is provided with an annular protrusion. The sealing element is accommodated in the annular groove, and the annular protrusion is located on the sealing element, which cooperates to seal and connect the cover and the candle tube, preventing rainwater from entering between the cover and the candle tube, thereby improving the waterproof performance of the electronic candle outdoors. Attached Figure Description

[0036] Figure 1 A schematic diagram of the structure of an electronic candle provided in an embodiment of this application;

[0037] Figure 2 Another perspective of the structural schematic diagram of the electronic candle provided in the embodiments of this application;

[0038] Figure 3 This is a partial cross-sectional structural diagram of an electronic candle provided in an embodiment of this application;

[0039] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0040] Figure 5 This is a partial exploded structure diagram of an electronic candle provided in an embodiment of this application;

[0041] Figure 6 This is a schematic diagram of the candle tube provided in an embodiment of this application;

[0042] Figure 7 Another perspective of the structural schematic diagram of the candle tube provided in the embodiments of this application;

[0043] Figure 8 This is an exploded view of the battery box provided in an embodiment of this application;

[0044] Figure 9 Another perspective of the exploded structural diagram of the battery box provided in the embodiments of this application;

[0045] Figure 10 A partial cross-sectional structural diagram of the battery box is provided for an embodiment of this application;

[0046] Figure 11 This is a partial cross-sectional structural diagram of another electronic candle provided in an embodiment of this application.

[0047] Figure label:

[0048] 1-Outer shell assembly; 11-Candle tube; 111-First end; 1111-End face; 1112-Annular flange; 1113-Water guide groove; 1114-Beveled surface; 1115-Water guide hole; 1116-Receiving groove; 1117-Water guide column; 11161-Groove bottom; 11162-Through hole; 11163-Supporting surface; 112-Second end; 113-Annular groove; 114-Water guide pipe; 1141-Inlet end; 1142-Outlet end; 115-Hollow cavity; 116-Waterproof gasket; 12-Seal; 2-Cover body; 21-Annular protrusion; 22-Annular groove; 23-Third end; 24-Fourth end; 3 -Mechanical assembly; 31-PCBA board; 32-Lamp holder; 33-Battery box; 331-Box body; 3311-First peripheral wall; 3312-First opening; 3313-Third peripheral wall; 3314-Top wall; 3315-Fourth peripheral wall; 3316-Battery; 3317-Battery cover; 3318-Battery cavity; 3319-Second opening; 33110-Water outlet; 33111-Water column; 332-Waterproof cover; 3321-Bottom wall; 3322-Second peripheral wall; 33221-Waterproof groove; 3323-Waterproof ring; 33231-Sealing layer; 3324-Operating groove; 334-Feet; 4-Lamp string. Detailed Implementation

[0049] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, specific embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0050] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0051] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0052] In the description of this specification, references to terms such as "embodiment," "one embodiment," and "one implementation" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or illustrative implementation of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0053] The present application will now be described in detail with reference to the accompanying drawings.

[0054] To solve the above technical problems, combined with Figures 1-4 As shown, this application embodiment provides a waterproof electronic candle, including a shell assembly 1. The shell assembly 1 includes a candle tube 11, which has a first end 111 and a second end 112 positioned vertically, with the first end 111 facing the direction of rainwater falling. A cover 2 is fitted over the candle tube 11, and the cover 2 includes a third end 23 and a fourth end 24, both of which are open tubular structures. At the position of the first end 111, either the candle tube 11 or the cover 2 is provided with an annular groove 113, and the other is provided with an annular protrusion 21. That is, when the annular groove 113 is provided on the candle tube 11, the annular protrusion 21 is provided opposite to it on the cover 2, and when the annular groove 113 is provided on the cover 2, the annular protrusion 21 is provided opposite to it on the candle tube 11. The housing assembly 1 also includes a seal 12, which is housed in an annular groove 113. An annular protrusion 21 is located on the seal 12, which works together to seal the connection between the housing 2 and the candle tube 11, thereby preventing rainwater from entering between the housing 2 and the candle tube 11 and improving the waterproof performance of the electronic candle outdoors.

[0055] In one embodiment of this application, combined with Figure 3 and Figure 4As shown, the first end 111 of the candle tube 11 is closed, forming an end face 1111. An annular groove 113 is formed upwards near the edge of the end face 1111, and an annular flange 1112 is formed at the edge of the end face 1111. The cover 2 increases in thickness near the annular flange 1112, forming a stepped surface. An annular protrusion 21 is formed downwards on the stepped surface, and an annular groove 22 is formed on the outer side of the annular protrusion 21. When the annular flange 1112 is accommodated in the annular groove 22, the annular protrusion 21 is located on the seal 12, providing a sealing connection between the cover 2 and the candle tube 11. During assembly, the candle tube 11 can directly enter the cover 2 from the third end 23 and move upwards until the annular protrusion 21 contacts the seal 12 in the annular groove 113. The vertically positioned annular protrusion 21 and annular groove 113 facilitate the assembly of the candle tube 11 and the cover 2. In another embodiment, an annular groove 113 may be provided on one of the outer peripheral walls of the first end 111 of the candle tube 11 and the inner peripheral wall of the cover 2, and an annular protrusion 21 may be provided on the other. The annular protrusion 21 and the annular groove 113 may also be sealed by the sealing member 12. In order to facilitate the installation of the candle tube 11, the annular protrusion 21 may be configured to have a certain degree of elasticity.

[0056] In one embodiment of this application, combined with Figure 3 and Figure 4 As shown, the cover 2 includes a third end 23 and a fourth end 24. The cover 2 is a tubular structure where both the third end 23 and the fourth end 24 are open. The third end 23 is flush with or approximately flush with the second end 112 of the candle tube 11, and the fourth end 24 extends beyond the first end 111 of the candle tube 11. From the annular protrusion 21 to the fourth end 24, the wall thickness of the cover 2 gradually decreases. The cover needs to withstand a certain connection force and sealing pressure at the annular protrusion 21, therefore the wall thickness is thicker to ensure the stability and sealing of the connection. This also facilitates the formation of the aforementioned stepped surface, forming the annular groove 22 and the annular protrusion 21. As the cover 2 extends towards the fourth end 24, the connection force and sealing pressure gradually decrease, thus the gradually decreasing wall thickness reduces the overall weight of the cover 2. It is understood that the wall thickness of the cover 2 at the annular protrusion 21 is also greater than the wall thickness from the annular protrusion 21 to the third end 23.

[0057] In one embodiment of this application, combined with Figure 4 and Figure 5As shown, the first end 111 of the candle tube 11 is closed to form an end face 1111. An annular water guide groove 1113 is provided on the end face 1111. The water guide groove 1113 is located on the outer ring of the end face 1111. From the middle of the end face 1111 to the water guide groove 1113, it is a slope 1114 that slopes from high to low. When rainwater falls on the end face 1111, it will collect and flow into the water guide groove 1113. Preferably, the water guide groove 1113 is an arc-shaped U-shaped groove to facilitate the inflow of rainwater. A water guide hole 1115 is provided at the bottom of the water guide groove 1113. The outer shell assembly 1 also includes a water guide pipe 114, which connects the water guide hole 1115 and the outside of the candle tube 11, and drains the rainwater in the water guide groove 1113 out of the candle tube 11.

[0058] In one embodiment of this application, combined with Figure 5 and Figure 7 As shown, the candle tube 11 has a hollow cavity 115 inside, and the second end 112 of the candle tube 11 is open and connected to the hollow cavity 115. The waterproof electronic candle also includes a mechanism assembly 3, which includes a PCBA board 31 and a lamp head 32. The PCBA board 31 is elongated and is disposed in the hollow cavity 115 along the axial direction of the candle tube 11. One end of the PCBA board 31 forms a slender stem and a conical head. The stem passes through a through hole 11162. The lamp head 32 consists of multiple light-emitting beads disposed on the head and a lamp head cover fitted over the head.

[0059] In one embodiment of this application, combined with Figure 5 and Figure 6 As shown, the first end 111 of the candle tube 11 is closed to form an end face 1111. A receiving groove 1116 is provided on the end face 1111. Optionally, the receiving groove 1116 is located at the center of the end face 1111, and the opening of the receiving groove 1116 faces upward. The receiving groove 1116 includes a groove bottom 11161, and a through hole 11162 is provided on the groove bottom 11161. The handle of the PCBA board 31 is provided through the through hole 11162. The outer shell assembly 1 also includes a waterproof gasket 116, which is disposed in the receiving groove 1116 and is interference-fitted with the receiving groove 1116 and the PCBA board 31. The waterproof pad 116 can be made of materials with elastic deformation capabilities such as silicone or rubber. The handle of the PCBA board 31 is also set through the waterproof pad 116. Therefore, the waterproof pad 116 is pressed between the handle of the PCBA board 31 and the receiving groove 1116 to seal the through hole 11162 and prevent rainwater from entering the candle tube 11 through the through hole 11162.

[0060] In one embodiment of this application, combined with Figure 6As shown, the area of ​​the through hole 11162 is smaller than the area of ​​the bottom of the groove 11161, so as to form a support surface 11163 on the bottom of the groove 11161. The support surface 11163 can provide stable support for the waterproof pad 116, ensuring that the waterproof pad 116 can be placed flat on the bottom of the groove 11161 and will not shift due to compression.

[0061] In one embodiment of this application, combined with Figures 8-10 As shown, the mechanism assembly 3 also includes a battery box 33, which provides installation space for the battery 3316. Electrode plates are disposed on the battery box 33 and are electrically connected to the battery 3316. The PCBA board 31 is electrically connected to the electrode plates via wires, thus enabling the battery box 33 to supply power to the PCBA board 31. The battery box 33 includes a body 331 and a waterproof cover 332. The body 331 is sealed onto the second end 112 of the candle tube 11, and a first opening 3312 is provided facing downwards. The first opening 3312 facilitates the installation and replacement of the battery 3316. The waterproof cover 332 is sealed over the first opening 3312 by a waterproof ring 3323 to prevent rainwater from entering the battery box 33.

[0062] In one embodiment of this application, combined with Figures 8-10 As shown, the battery box 33 includes a first peripheral wall 3311, which forms a first opening 3312. The waterproof cover 332 includes a bottom wall 3321, and a second peripheral wall 3322 extends upward from the edge of the bottom wall 3321. The bottom wall 3321 and the second peripheral wall 3322 can be integrally formed. The second peripheral wall 3322 has a waterproof groove 33221 facing the first peripheral wall 3311, wherein the waterproof groove 33221 is a U-shaped groove. A waterproof ring 3323 is disposed within the waterproof groove 33221. When the waterproof cover 332 is assembled with the box body 331, the second peripheral wall 3322 and the first peripheral wall 3311 cooperate with each other, and the waterproof ring 3323 is squeezed between the two, so that the second peripheral wall 3322 and the first peripheral wall 3311 are sealed together.

[0063] In one embodiment of this application, combined with Figure 4 and Figure 5 As shown, the waterproof ring 3323 includes multiple laterally extending sealing layers 33231, which are spaced apart and are all sealed to the first peripheral wall 3311, thereby forming a multi-layer seal in the direction of rainwater ingress and increasing the sealing performance.

[0064] In one embodiment of this application, combined with Figures 8-10As shown, to ensure a good seal between the housing 331 and the second end 112 of the candle tube 11, preferably, the housing 331 and the second end 112 of the candle tube 11 are sealed together by an adhesive. The housing 331 and the candle tube 11 can be made of plastic, and the adhesive can be epoxy resin, acrylic resin, etc.

[0065] In one embodiment of this application, combined with Figures 8-10 As shown, the box body 331 also includes a third peripheral wall 3313, which is formed by extending horizontally outward from the first peripheral wall 3311 and then bending upward. The third peripheral wall 3313 is spaced apart from the first peripheral wall 3311. When the box body 331 is made of plastic, the third peripheral wall 3313 has a certain elasticity, allowing it to tightly and elastically abut against the inner wall of the second end 112 of the candle tube 11, forming a preliminary sealing contact. To further improve the sealing performance, an adhesive is applied between the third peripheral wall 3313 and the second end 112 of the candle tube 11.

[0066] In one embodiment of this application, combined with Figures 8-10 As shown, the housing 331 also includes a top wall 3314, a fourth peripheral wall 3315, a battery 3316, and a battery cover 3317. The top wall 3314 and the fourth peripheral wall 3315 protrude into the candle tube 11, forming a battery cavity 3318, in which the battery 3316 is disposed. A second opening 3319 is provided downwards in the battery cavity 3318, and the battery cover 3317 is detachably mounted on the second opening 3319 for sealing or opening it. The fourth peripheral wall 3315 extends outwards and connects to the first peripheral wall 3311. The bottom of the first peripheral wall 3311 extends horizontally outwards and connects to the fourth peripheral wall 3315 to form a stepped structure. When it is necessary to install or replace the battery 3316, the waterproof cover 332 must be opened first, exposing the battery cover 3317. Opening the battery cover 3317 then exposes the battery 3316. In summary, the top wall 3314, the fourth peripheral wall 3315, and the first peripheral wall 3311 work together to provide a sealed and easy-to-maintain structure for the battery 3316, and can prevent rainwater from entering the candle tube from the bottom.

[0067] In one embodiment of this application, combined with Figure 4 , Figure 5 , Figure 7 and Figure 9As shown, the first end 111 of the candle tube 11 is closed to form an end face 1111. An annular water guide groove 1113 is provided on the end face 1111. The water guide groove 1113 is located on the outer ring of the end face 1111. From the middle of the end face 1111 to the water guide groove 1113, it is set as a slope 1114 from high to low. When rainwater falls on the end face 1111, it will collect and flow into the water guide groove 1113. A water guide hole 1115 is provided in the water guide groove 1113. A water outlet hole 33110 is provided at the edge of the box body 331. The outer shell assembly 1 also includes a water guide pipe 114, which includes an inlet end 1141 and an outlet end 1142. The inlet end 1141 is connected to the water guide hole 1115, and the outlet end 1142 is connected to the outlet hole 33110. Rainwater collects in the annular drainage channel 1113, then flows through the drainage hole 1115 into the drainage pipe 114, and finally exits from the outlet hole 33110 on the edge of the box 331. This achieves smooth guidance and drainage of rainwater, effectively solving the problem of water accumulation.

[0068] In one embodiment of this application, combined with Figure 5 , Figure 7 and Figure 9 As shown, a water guide column 1117 is connected to the water guide hole 1115. The water guide column 1117 is a hollow columnar structure extending from the water guide hole 1115 into the canopy tube 11. The outer diameter of the water guide column 1117 is smaller than the inner diameter of the water inlet end 1141 of the water guide tube 114, and thus the water guide tube 114 is fitted onto the water guide column 1117. A water outlet column 33111 is connected to the water outlet hole 33110. The water outlet column 33111 is a hollow columnar structure extending upward from the water outlet hole 33110. The inner diameter of the water outlet column 33111 is larger than the outer diameter of the water outlet end 1142 of the water guide tube 114, and thus the water outlet column 33111 is fitted onto the outside of the water outlet end 1142. The cooperation of the water guide column 1117, the water outlet column 33111, and the water guide tube 114 allows rainwater to flow smoothly, enhancing drainage performance.

[0069] In one embodiment of this application, combined with Figure 9 As shown, multiple support feet 334 are also provided below the battery box 33, which can form a certain gap between the battery box 33 and the placement surface, and can prevent the battery box 33 from being soaked in rainwater on the placement surface.

[0070] In one embodiment of this application, combined with Figure 8 As shown, an operation groove 3324 is also provided on the bottom surface of the waterproof cover 332. Optionally, there are two operation grooves 3324, and the two operation grooves 3324 are arranged relatively and spaced apart. When using the waterproof cover 332, the user can apply force to the operation groove 3324 with his / her finger to open the waterproof cover 332.

[0071] In one embodiment of this application, combined with Figure 11As shown, the cover 2 is transparent, allowing light to pass through effectively. A string of lights 4 is also installed between the candle tube 11 and the cover 2. The string of lights 4 can be embedded in the candle tube 11 or in the cover 2, as long as it is located between the candle tube 11 and the cover 2. The string of lights 4 can present a richer lighting effect through the cover 2.

[0072] In one embodiment of this application, combined with Figure 4 As shown, the sealing element 12 can be configured as a sealing ring, with the annular protrusion 21 pressing against the sealing ring to seal the connection between the candle tube 11 and the cover 2. Preferably, the sealing element is configured as an adhesive, with the adhesive applied in the annular groove 113, the annular protrusion 21 contacting the adhesive, and after the adhesive solidifies, it can seal the connection between the candle tube 11 and the cover 2. The adhesive can be a UV adhesive.

[0073] It should be noted that the above-mentioned technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this application specification; and, for those skilled in the art, improvements or modifications can be made based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A waterproof electronic candle, characterized in that, include: The outer casing assembly (1) includes a candle tube (11), the candle tube (11) including a first end (111) and a second end (112) in an up-down position relationship; Cover (2) is fitted over the candle tube (11). At the position of the first end (111), one of the candle tube (11) or the cover (2) is provided with an annular groove (113), and the other is provided with an annular protrusion (21). The outer casing assembly (1) further includes a seal (12) which is housed in the annular groove (113) and the annular protrusion (21) contacts the seal (12) for sealing the connection between the candle tube (11) and the cover (2).

2. The waterproof electronic candle according to claim 1, characterized in that, The first end (111) includes an end face (1111), and the annular groove (113) is formed at the edge of the end face (1111) facing upward, and an annular flange (1112) is formed at the edge of the end face (1111). The cover (2) is provided with an annular protrusion (21) facing downwards, and an annular groove (22) is provided near the annular protrusion (21); When the annular flange (1112) is accommodated in the annular groove (22), the annular protrusion (21) contacts the seal (12).

3. The waterproof electronic candle according to claim 2, characterized in that, The cover (2) includes a third end (23) and a fourth end (24). The third end (23) is flush or approximately flush with the second end (112) of the candle tube (11). The fourth end (24) extends beyond the first end (111) of the candle tube (11). From the annular protrusion (21) to the fourth end (24), the wall thickness of the cover (2) gradually decreases.

4. The waterproof electronic candle according to claim 1, characterized in that, The candle tube (11) has a hollow cavity (115) inside, and the second end (112) is open and connected to the hollow cavity (115); The waterproof electronic candle also includes a mechanism assembly (3), which includes a PCBA board (31) and a lamp holder (32). The PCBA board (31) is disposed in the hollow cavity (115) and extends through the first end (111). The lamp holder (32) is disposed on the PCBA board (31).

5. The waterproof electronic candle according to claim 4, characterized in that, The first end (111) includes an end face (1111), on which a receiving groove (1116) is provided. The receiving groove (1116) includes a groove bottom (11161), on which a through hole (11162) is provided. The PCBA board (31) is disposed through the through hole (11162). The outer shell assembly (1) also includes a waterproof pad (116), which is disposed in the receiving groove (1116) and is interference-fitted with the receiving groove (1116) and the PCBA board (31).

6. The waterproof electronic candle according to claim 4, characterized in that, The mechanism assembly (3) also includes a battery box (33), which is electrically connected to the PCBA board (31). The battery box (33) includes a box body (331) and a waterproof cover (332). The box body (331) is sealed on the second end (112) of the candle tube (11). The box body (331) has a first opening (3312) facing downward. The waterproof cover (332) is sealed on the first opening (3312) by a waterproof ring (3323).

7. The waterproof electronic candle according to claim 6, characterized in that, The box body (331) includes a first peripheral wall (3311), which surrounds and forms the first opening (3312). The waterproof cover (332) includes a bottom wall (3321) and a second peripheral wall (3322) disposed on the bottom wall (3321). The second peripheral wall (3322) is provided with a waterproof groove (33221) facing the first peripheral wall (3311). The waterproof ring (3323) is disposed in the waterproof groove (33221) and is sealed to the first peripheral wall (3311).

8. The waterproof electronic candle according to claim 7, characterized in that, The box body (331) also includes a top wall (3314), a fourth peripheral wall (3315), a battery (3316), and a battery cover (3317). The top wall (3314) and the fourth peripheral wall (3315) together form a battery cavity (3318). The battery (3316) is disposed in the battery cavity (3318). The battery cavity (3318) has a second opening (3319) facing downward. The battery cover (3317) is detachably disposed on the second opening (3319). The fourth peripheral wall (3315) extends outward and connects to the first peripheral wall (3311).

9. The waterproof electronic candle according to claim 7, characterized in that, The first end (111) includes an end face (1111), on which an annular water guide groove (1113) is provided. From the middle position of the end face (1111) to the water guide groove (1113), a slope (1114) is formed from high to low. A water guide hole (1115) is provided in the water guide groove (1113). A water outlet (33110) is provided at the edge of the box body (331). The outer shell assembly (1) also includes a water guide pipe (114), which includes an inlet end (1141) and an outlet end (1142). The inlet end (1141) is connected to the water guide hole (1115), and the outlet end (1142) is connected to the outlet hole (33110).

10. The waterproof electronic candle according to claim 1, characterized in that, The sealing element (12) is configured as a sealing ring or adhesive.

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