Waterproof power adapter

Abstract

The utility model discloses a waterproof power adapter, and relates to the technical field of power adapters, in particular to a waterproof power adapter which comprises an inner shell, an outer shell, an insertion rod, a telescopic groove, a lock cavity, a locking assembly, a sleeve, an adapter body, a reset assembly, a support and heat dissipation holes. A sleeve is arranged at the bottom end of the interior of the inner shell, an insertion rod is arranged in the inner shell, a telescopic groove is formed in the top end of the interior of the outer shell, lock cavities are formed in the two sides of the interior of the telescopic groove, locking assemblies are arranged between the lock cavities and the insertion rod, an adapter body is arranged in the inner shell, and a reset assembly is arranged in the outer shell. A support is arranged on the lower side of the outer portion of the inner shell, and heat dissipation holes are formed in the periphery of the outer portion of the support. Compared with the prior art, the utility model has the advantages that the shell is convenient to disassemble and assemble; and the heat dissipation performance is good.

Description

Technical Field

[0001] The utility model relates to the technical field of power adapters, in particular to a waterproof power adapter. Background Art

[0002] A power adapter is a power conversion device for small portable electronic devices and electronic appliances. It is generally composed of a casing, transformer, inductor, capacitor, and other components. Its working principle is to convert AC input into DC output. It can be divided into wall-mounted and desktop types according to the connection method, and is widely used in various electrical appliances.

[0003] A glue-filled high waterproof power adapter described in publication number CN220457731U includes a lower cover, an upper cover and a connecting line; the lower cover is provided with a lower outer wall and a lower inner wall; the outer circumference of the upper cover is provided with an upper outer wall; a glue-filling groove is formed between the lower outer wall and the upper outer wall; the lower cover is provided with a fixing seat; the upper cover is provided with a fixing platform; a fixing seat glue-filling cavity; the fixing platform is provided with connecting ribs; a perforation is formed between the upper cover and the lower cover; one end of the connecting line is provided with a first connector; the first connector is provided with a first baffle and a second baffle. The utility model achieves a high waterproof sealing effect by adopting a glue-filling method in combination with the structural design of the shell instead of a sealing ring; in addition, instead of an overall glue-filling method, a partial glue-filling method is adopted to fill the upper cover, the space between the upper cover and the connecting line, thereby isolating the core components from the outside environment to achieve waterproof and dustproof.

[0004] Although the above power adapter solves certain problems, it still has the following disadvantages:

[0005] (1) The housing of the power adapter is inconvenient to disassemble and assemble, and is not convenient for maintenance and inspection during later use.

[0006] (2) The power adapter uses glue filling to connect the shells to ensure the waterproofness of the shells, but this will result in poor heat dissipation performance of the adapter and affect the service life of the adapter. Utility Model Content

[0007] The purpose of the utility model is to provide a waterproof power adapter.

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A waterproof power adapter, comprising:

[0010] An inner shell, wherein a plurality of evenly distributed air holes are provided at the inner bottom of the inner shell, a sleeve is fixedly connected to the inner bottom of the inner shell, a support is fixedly connected to the outer lower side of the inner shell, and heat dissipation holes are provided at the front, rear and both sides of the support;

[0011] An outer shell, the outer shell is sleeved on the outside of the inner shell, a telescopic groove is provided at the top of the inner part of the outer shell, and locking cavities are provided at both sides of the telescopic groove;

[0012] An insert rod, the insert rod is arranged inside the inner shell, the insert rod is inserted into the sleeve, and a clamp ring is arranged on the insert rod inside the sleeve;

[0013] A locking assembly, the locking assembly is located between the insertion rod and the telescopic slot, the locking assembly includes a locking block, a mounting plate, a protrusion, a movable ring block and a card slot, the locking block is arranged inside the lock cavity, the locking block is in a right-angle trapezoidal shape, the mounting plate is fixedly connected to the upper end of the insertion rod, the protrusion is fixedly connected to the upper end of the mounting plate, the movable ring block is sleeved on the lower side of the outer side of the protrusion, and the card slot is opened on the lower side of the outer side of the protrusion;

[0014] An adapter body, the adapter body is arranged inside the inner shell, and the adapter body is sleeved on the outside of the insertion rod;

[0015] A reset component is arranged between the locking block and the outer shell.

[0016] Furthermore, the reset component comprises:

[0017] A movable groove, wherein the movable groove is arranged on one side of the lock cavity away from each other;

[0018] A retaining ring, the retaining ring being arranged inside the movable groove;

[0019] A guide rod, the guide rod is fixedly connected to a side of the locking block that is away from each other, and the guide rod is inserted into the interior of the retaining ring;

[0020] An anti-slip block, the anti-slip block is fixedly connected to an end of the guide rod away from the locking block;

[0021] A return spring is sleeved on the outside of the guide rod and is located between the retaining ring and the locking block.

[0022] Furthermore, a communicating hole is provided at the bottom end of the inner shell, the communicating hole is connected to the inside of the sleeve, and the lower end of the insertion rod extends through the communicating hole to the lower side of the outer side of the inner shell.

[0023] Furthermore, a positioning ring block is arranged at the top end of the sleeve, and a compression spring is arranged on the insertion rod inside the sleeve. The compression spring is located between the clamping ring and the positioning ring block and is sleeved on the outside of the insertion rod.

[0024] Furthermore, the protrusion is mushroom-shaped, and the cross-section of the movable ring block is triangular.

[0025] The utility model provides a waterproof power adapter, which has the following beneficial effects:

[0026] (1) The protrusion installed on the upper end of the plug rod, the telescopic groove opened at the top of the outer shell, and the lock block inside the lock cavity are used to clamp the protrusion, and the movable ring block on the lower side of the protrusion is used to quickly install and disassemble the inner and outer shells, so that the adapter can be easily repaired.

[0027] (2) The heat generated by the adapter during operation can be dissipated through the ventilation holes opened on the lower side of the inner shell and the heat dissipation holes opened around the support. At the same time, the overlapping form of the inner and outer shells is waterproof and has good heat dissipation performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0029] Figure 1 The utility model is a three-dimensional waterproof power adapter Figure 1 .

[0030] Figure 2 The utility model is a three-dimensional waterproof power adapter Figure 2 .

[0031] Figure 3 It is a front cross-sectional view of a waterproof power adapter of the utility model.

[0032] Figure 4 It is an enlarged view of A of a waterproof power adapter of the utility model.

[0033] Figure 5 It is an enlarged view of B of a waterproof power adapter of the utility model.

[0034] Figure 6 The utility model is a top cross-sectional view of a waterproof power adapter.

[0035] Figure 7 It is an enlarged view of C of a waterproof power adapter of the utility model.

[0036] Indications in the figure: 1. Inner shell; 2. Outer shell; 3. Insert rod; 4. Locking assembly; 401. Locking block; 402. Mounting plate; 403. Bump; 404. Movable ring block; 405. Slot; 5. Adapter body; 6. Reset assembly; 601. Movable slot; 602. Retaining ring; 603. Guide rod; 604. Anti-slip block; 605. Reset spring; 7. Air vent; 8. Sleeve; 9. Support; 10. Heat dissipation hole; 11. Telescopic slot; 12. Lock cavity; 13. Snap ring; 14. Connecting hole; 15. Positioning ring block; 16. Extrusion spring. DETAILED DESCRIPTION

[0037] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] Embodiment 1:

[0040] like Figures 1 to 7 As shown, this embodiment provides a waterproof power adapter, including an inner shell 1, an outer shell 2, a plug rod 3, a locking assembly 4, an adapter body 5 and a reset assembly 6 arranged between the plug rod 3 and the outer shell 2.

[0041] Among them, the inner shell 1, which is used as the basis for installing the adapter, has a sleeve 8 installed at the bottom end of the interior, and a connecting hole 14 that penetrates the inside of the sleeve 8 is opened at the bottom end of the interior, and a positioning ring block 15 is set at the top of the sleeve 8. The inner diameter of the positioning ring block 15 is the same as the aperture of the connecting hole 14, both of which are smaller than the inner diameter of the sleeve 8. The outside of the inner shell 1 is covered with an outer shell 2, and the inner and outer shells are stacked in a way to increase the airtightness between the shells. The outer shell 2 is on the top, so that the gap is on the bottom, which can achieve the waterproof function. A telescopic groove 11 is provided at the top of the inner shell 1, and a plug rod 3 is arranged inside the inner shell 1. The lower end of the plug rod 3 extends from the inside of the connecting hole 14 to the lower side of the outside of the inner shell 1. A plurality of evenly distributed air holes 7 are provided on the lower side of the outside of the inner shell 1. At the same time, a support 9 is installed on the lower side of the outside of the inner shell 1 to raise the inner shell 1. A plurality of evenly distributed heat dissipation holes 10 are provided around the support 9 to facilitate the heat dissipation of the adapter body inside the inner shell 1 to the outside, and to protect the lower end of the plug rod 3 extending from the inside of the inner shell 1.

[0042] The outer shell 2 and the inner shell 1 are connected together by a locking assembly 4 and can be placed and separated at will, wherein the locking assembly includes locking chambers 12 opened on both sides of the telescopic slot 11, and a locking block 401 with a right-angled trapezoidal cross-section is arranged inside each lock chamber 12, a circular mounting plate 402 is installed on the upper end of the insertion rod 3, and a mushroom-shaped protrusion 403 is installed on the upper end of the mounting plate 402, the protrusion 403 extends into the interior of the telescopic slot 11, and the protrusion 403 can move up and down inside the telescopic slot 11, the hypotenuses of the locking blocks 401 are close to each other and face downward, and after the protrusions 403 move upward into the interior of the telescopic slot 11, the arc at the upper end of the protrusions 403 and the hypotenuses of the locking blocks 401 can squeeze the two locking blocks 401 away from each other, and when the locking blocks 401 approach each other, the lower edges of the protrusions 403 are stuck.

[0043] In order to ensure that the two locking blocks 401 always have a tendency to approach each other, a movable groove 601 is opened on the side of the lock cavity 12 that is away from each other, and a retaining ring 602 is arranged inside the movable groove 601. The side of the locking blocks 401 that are away from each other is connected to a guide rod 603 inserted into the retaining ring 602, and the other end of the guide rod 603 connected to the locking blocks 401 is connected to an anti-slip block 604. The anti-slip block 604 is on the side of the retaining ring 602 that is away from each other. Through the extrusion of the return spring 605 sleeved on the outside of the guide rod 603, the return spring 605 is between the locking blocks 401 and the retaining ring 602, the locking blocks 401 are always squeezed in the direction of approaching each other, so that the upper side of the locking blocks 401 is against the protruding part of the lower side of the outside of the protrusion 403, the insertion rod 3 is positioned to form a reset component 6. When the protrusion 403 squeezes the locking blocks 401 away from each other, the reset component 6 allows the locking blocks 401 to approach each other.

[0044] In order to allow the protrusion 403 to be able to disengage again after being stuck by the locking block 401, a movable ring block 404 that can move up and down is sleeved on the lower side of the outside of the protrusion 403. The cross-section of the movable ring block 404 is triangular, and a groove 405 is provided on the edge of the protruding part of the lower side of the outside of the protrusion 403, which can just hold the upper half of the movable ring block 404. In this way, when the protrusion 403 continues to move upward and moves the movable ring block 404 to the upper side of the locking block 401, the locking blocks 401 will move away from each other again. However, after the movable ring block 404 is squeezed into the inside of the groove 405, it is equivalent to overlapping an inclined surface for the protruding part of the lower side of the protrusion 403. When the insertion rod 3 moves downward, the lower side of the movable ring block 404 squeezes the locking blocks 401 away from each other, and then the protrusion 403 can be detached from the inside of the telescopic groove 11.

[0045] Embodiment 2:

[0046] The solution in Example 1 is further introduced below in combination with a specific working method, as described below:

[0047] In order to facilitate the automatic downward rebound of the insertion rod 3 after moving upward, a clamping ring 13 is fixedly connected to the insertion rod 3, and the clamping ring 13 can move up and down inside the sleeve 8. An extrusion spring 16 is sleeved on the outside of the insertion rod 3, and the extrusion spring 16 is between the clamping ring 13 and the positioning ring block 15. In this way, when the insertion rod 3 moves upward and the external force applied to the end of the insertion rod 3 extending to the lower side of the outside of the inner shell 1 is removed, the extrusion spring 16 can squeeze the clamping ring 13 to the bottom end inside the sleeve 8, thereby realizing the quick installation and quick release function between the inner shell 1 and the outer shell 2.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waterproof power adapter, characterized in that: include: An inner shell (1), wherein a plurality of evenly distributed air holes (7) are provided at the inner bottom of the inner shell (1), a sleeve (8) is fixedly connected to the inner bottom of the inner shell (1), a support (9) is fixedly connected to the outer lower side of the inner shell (1), and heat dissipation holes (10) are provided at the front, rear and both sides of the support (9); An outer shell (2), the outer shell (2) being sleeved on the outside of the inner shell (1), a telescopic groove (11) being provided at the top of the inner part of the outer shell (2), and locking cavities (12) being provided on both sides of the inner part of the telescopic groove (11); An insert rod (3), the insert rod (3) being arranged inside the inner shell (1), the insert rod (3) being inserted into the inside of the sleeve (8), and a snap ring (13) being arranged on the insert rod (3) inside the sleeve (8); A locking assembly (4), the locking assembly (4) being located between the insertion rod (3) and the telescopic slot (11), the locking assembly (4) comprising a locking block (401), a mounting plate (402), a protrusion (403), a movable ring block (404) and a clamping groove (405), the locking block (401) being arranged inside the lock cavity (12), the locking block (401) being in the shape of a right-angled trapezoid, the mounting plate (402) being fixedly connected to the upper end of the insertion rod (3), the protrusion (403) being fixedly connected to the upper end of the mounting plate (402), the movable ring block (404) being sleeved on the outer lower side of the protrusion (403), and the clamping groove (405) being opened on the outer lower side of the protrusion (403); An adapter body (5), the adapter body (5) being arranged inside the inner shell (1), and the adapter body (5) being sleeved on the outside of the insertion rod (3); A reset component (6), wherein the reset component (6) is arranged between the locking block (401) and the outer shell (2).

2. A waterproof power adapter according to claim 1, characterized in that: The reset component (6) comprises: A movable groove (601), wherein the movable groove (601) is arranged on a side of the lock cavity (12) away from each other; A retaining ring (602), wherein the retaining ring (602) is arranged inside the movable groove (601); A guide rod (603), the guide rod (603) being fixedly connected to a side of the locking block (401) that is away from each other, and the guide rod (603) being inserted into the interior of the retaining ring (602); An anti-slip block (604), wherein the anti-slip block (604) is fixedly connected to an end of the guide rod (603) away from the locking block (401); A return spring (605), wherein the return spring (605) is sleeved on the outside of the guide rod (603), and the return spring (605) is located between the retaining ring (602) and the locking block (401).

3. The waterproof power adapter according to claim 1, characterized in that: A connecting hole (14) is provided at the bottom end of the inner shell (1), and the connecting hole (14) is connected to the inside of the sleeve (8). The lower end of the insertion rod (3) extends through the connecting hole (14) to the lower side of the outer side of the inner shell (1).

4. The waterproof power adapter according to claim 1, characterized in that: A positioning ring block (15) is arranged at the top end of the sleeve (8), and a compression spring (16) is arranged on the insertion rod (3) inside the sleeve (8). The compression spring (16) is located between the clamping ring (13) and the positioning ring block (15), and is sleeved on the outside of the insertion rod (3).

5. The waterproof power adapter according to claim 1, characterized in that: The protrusion (403) is mushroom-shaped, and the cross-section of the movable ring block (404) is triangular.

Images