Three-pin AC plug

Abstract

The utility model discloses a three-pin AC plug, and particularly relates to the technical field of a three-pin plug, comprising a plug main body, the inner end face of the plug main body is provided with a plastic skeleton, the end face of the plastic skeleton is provided with a glue injection hole, the lower end of the plastic skeleton is provided with a plugging copper column, and the outer side of the upper end of the plugging copper column is provided with a limiting plate. A supporting connecting rod is arranged in the middle of the upper end of the limiting plate, penetrates through the end face of the plastic framework and extends to the upper end of the plastic framework. In actual use, under the corresponding arrangement state of the power conductor, the supporting installation sleeve, the installation sliding sleeve, the elastic clamping block, the limiting clamping teeth and the limiting abutting block, convenience and stability of installation of the power conductor can be effectively improved, meanwhile, when the power conductor is inserted into the installation sliding sleeve, the power conductor can abut against the limiting clamping teeth, and therefore the power conductor is prevented from being damaged. And when the mounting sliding sleeve is inserted into the supporting mounting sleeve, the elastic clamping block is pressed back to the original position.

Description

Technical Field

[0001] The utility model relates to the technical field of triangular plugs, and more specifically, to a three-pin AC plug. Background Art

[0002] AC plugs are common connectors for electronic products and electrical appliances. Household AC power plugs and outlets have a male connector with a rod-like or copper-plate protrusion that physically inserts into a female connector with a slot or recess in the outlet. Dimensions are a key technical requirement for the safe use of plugs, sockets, and converters, ensuring universal interchangeability and preventing mis-insertion. During production, three-prong AC plugs are directly coated with insulating rubber, effectively increasing the safety of the triangular AC plug. Before the insulating rubber is injected, workers must connect the power cord conductor to the copper post of the plug. Currently, this method involves directly inserting the plug into the upper end of the copper post and pressing with an external device to secure the connection. However, this method can easily loosen the power cord conductor when moving the plug. Furthermore, installation still requires the use of external equipment, which is inconvenient. Furthermore, improper installation makes removal difficult, and forced removal can easily damage the upper end of the copper post. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a three-pin AC plug. The technical problem to be solved by the present invention is: how to increase the convenience and stability of the installation of the conductor of the power cord and the copper column of the plug.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a three-pin AC plug, comprising a plug body, an inner end surface of which is provided with a plastic frame, an end surface of the plastic frame having a glue injection hole, a lower end of the plastic frame having a plugging copper post, an outer side of the upper end of the plugging copper post having a limit plate, a middle portion of the upper end of the limit plate having a support connecting rod, the support connecting rod passing through the end surface of the plastic frame and extending to the upper end of the plastic frame;

[0005] The support connecting rod is provided with a support mounting sleeve at the upper end of the plastic frame, a mounting sleeve is provided inside the support mounting sleeve, a limiting block is provided at the upper end of the mounting sleeve, an elastic clamping block is provided at the outer end of the mounting sleeve, and a limiting tooth is provided on the upper side of the inner end surface of the elastic clamping block.

[0006] In a preferred embodiment, a handshake protrusion is provided in the middle of the upper end of the plug body, a rubber-coated covering protrusion is provided on the outer side of the handshake protrusion at the upper end of the plug body, and a mesh tail grille area is provided at one end of the handshake protrusion;

[0007] A power line is provided outside one end of the mesh tail grille area. The power line passes through the end surface of the mesh tail grille area and extends to the inside of the plug body.

[0008] In a preferred embodiment, the power cord is provided with a power branch line insulation sleeve inside the plug body, and the power conductor is provided inside the power branch line insulation sleeve;

[0009] The outer end surface of the power conductor is matched with the inner end surface of the mounting sleeve, and the plug body, the rubber-coated covering protrusion, the handshake protrusion and the tail grille area are all components made of insulating rubber material.

[0010] In a preferred embodiment, the outer end face diameter of the limit plate in the top view direction is larger than the outer end face diameter of the plug-in copper column in the top view direction, the outer end face diameter of the plug-in copper column in the top view direction is larger than the outer end face diameter of the support connecting rod in the top view direction, and the outer end face of the plug-in copper column in the top view direction and the outer end face of the support mounting sleeve in the top view direction are arranged in a coplanar state.

[0011] In a preferred embodiment, the outer end surface of the mounting sleeve is adapted to the inner end surface of the supporting mounting sleeve, and the inner end surface of the elastic clamping block in the top view direction is coplanar with the inner end surface of the mounting sleeve in the top view direction.

[0012] In a preferred embodiment, there are multiple limit teeth, which are arranged in an array on both sides of the transverse center axis of the elastic clamping block in the main viewing direction, and the outer end faces of the support mounting sleeve and the limit block in the top viewing direction are arranged in a coplanar state.

[0013] The technical effects and advantages of this utility model are:

[0014] When the utility model is actually used, the convenience and stability of the installation of the power conductor can be effectively increased by correspondingly setting the power conductor, the support mounting sleeve, the mounting sleeve, the elastic clamping block, the limiting teeth and the limiting block. At the same time, when the power conductor is inserted into the mounting sleeve, the limiting teeth will be pressed against the elastic clamping block, so that the elastic clamping block will bulge outward. When the mounting sleeve is inserted into the support mounting sleeve, the elastic clamping block will be pressed back to its original position, so that the limiting teeth will be embedded in the outer end of the power conductor, thereby preventing the power conductor from detaching from the inside of the mounting sleeve, thereby further increasing the stability of the installation of the power conductor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the overall bottom structure of the utility model.

[0017] Figure 3This is a schematic diagram of the plastic skeleton connection structure of the utility model.

[0018] Figure 4 This is a schematic diagram of the cross-sectional connection structure of the installation sleeve of the utility model.

[0019] The accompanying drawings are marked as follows: 1 plug body, 2 plug-in copper column, 3 rubber-coated covered protrusion, 4 handshake protrusion, 5 mesh tail grille area, 6 power cord, 7 power distribution line insulation sleeve, 8 plastic frame, 9 glue injection hole, 10 power conductor, 11 limit plate, 12 support connecting rod, 13 support installation sleeve, 14 installation sleeve, 15 elastic clamping block, 16 limit tooth, 17 limit block. DETAILED DESCRIPTION

[0020] The utility model provides a three-pin AC plug, such as Figure 1 、 2 As shown in Figure 3, it includes a plug body 1, a plastic frame 8 is provided on its inner end surface, a glue injection hole 9 is opened on the end surface of the plastic frame 8, a plug-in copper column 2 is provided at the lower end of the plastic frame 8, a handshake protrusion 4 is provided in the middle of the upper end of the plug body 1, and a rubber-coated covering protrusion 3 is provided on the outer side of the handshake protrusion 4 at the upper end of the plug body 1;

[0021] A tail grille area 5 is provided at one end of the handshake protrusion 4, and a power cord 6 is provided outside one end of the tail grille area 5. The power cord 6 passes through the end face of the tail grille area 5 and extends to the inside of the plug body 1. The power cord 6 is provided with a power distribution line insulating sleeve 7 inside the plug body 1.

[0022] like Figure 3 and 4 As shown, a limit plate 11 is provided on the outer side of the upper end of the plug-in copper column 2, and a support connecting rod 12 is provided in the middle of the upper end of the limit plate 11. The support connecting rod 12 passes through the end surface of the plastic frame 8 and extends to the upper end of the plastic frame 8. The support connecting rod 12 is provided with a support mounting sleeve 13 at the upper end of the plastic frame 8, and a mounting sleeve 14 is provided inside the support mounting sleeve 13;

[0023] A limiting stop 17 is provided at the upper end of the mounting sleeve 14, and an elastic clamping block 15 is provided at the outer end of the mounting sleeve 14. A limiting tooth 16 is provided on the upper side of the inner end surface of the elastic clamping block 15. A power conductor 10 is provided inside the power distribution line insulating sleeve 7, and the outer end surface of the power conductor 10 is adapted to the inner end surface of the mounting sleeve 14.

[0024] The outer end surface diameter of the limiting plate 11 in the top view direction is larger than the outer end surface diameter of the plug copper pillar 2 in the top view direction, and the outer end surface diameter of the plug copper pillar 2 in the top view direction is larger than the outer end surface diameter of the support connecting rod 12 in the top view direction. The outer end surface of the plug copper pillar 2 in the top view direction and the outer end surface of the support mounting sleeve 13 in the top view direction are arranged in a coplanar state;

[0025] The outer end surface of the mounting sleeve 14 is adapted to the inner end surface of the support mounting sleeve 13, and the inner end surface of the elastic clamping block 15 in the top view direction is coplanar with the inner end surface of the mounting sleeve 14 in the top view direction. There are multiple limit teeth 16, and they are arranged in an array on both sides of the transverse center axis of the main viewing direction of the elastic clamping block 15. The outer end surfaces of the support mounting sleeve 13 and the limit block 17 in the top view direction are coplanar.

[0026] Working principle of this utility model:

[0027] When the present invention is used, the staff inserts the power conductor 10 at one end of the power distribution line insulating sleeve 7 into the interior of the mounting sleeve 14. When the power conductor 10 is inserted into the interior of the mounting sleeve 14, the power conductor 10 will press against the limiting tooth 16, and the elastic clamping block 15 will be offset to the outside. Then the staff can insert the mounting sleeve 14 into the interior of the support mounting sleeve 13. The staff presses the limiting block 17 to press the mounting sleeve 14 into the interior of the support mounting sleeve 13. The inner wall of the support mounting sleeve 13 will press the elastic clamping block 15 to restore it to its original position, and the set limiting tooth 16 will be embedded in the interior of the power conductor 10, thereby effectively increasing the stability of the installation of the power conductor 10.

[0028] Finally, a few points should be explained: the drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A three-pin AC plug, characterized in that: include: The plug body (1) has a plastic frame (8) on its inner end surface, a glue injection hole (9) is opened on the end surface of the plastic frame (8), a plug-in copper column (2) is provided at the lower end of the plastic frame (8), a limit plate (11) is provided on the outer side of the upper end of the plug-in copper column (2), a support connecting rod (12) is provided in the middle of the upper end of the limit plate (11), and the support connecting rod (12) passes through the end surface of the plastic frame (8) and extends to the upper end of the plastic frame (8); The support connecting rod (12) is provided with a support mounting sleeve (13) at the upper end of the plastic frame (8), a mounting sleeve (14) is provided inside the support mounting sleeve (13), a limiting block (17) is provided at the upper end of the mounting sleeve (14), an elastic clamping block (15) is provided at the outer end of the mounting sleeve (14), and a limiting tooth (16) is provided on the upper side of the inner end surface of the elastic clamping block (15).

2. A three-pin AC plug according to claim 1, characterized in that: A handshake protrusion (4) is provided in the middle of the upper end of the plug body (1); a rubber-coated covering protrusion (3) is provided on the outer side of the handshake protrusion (4) at the upper end of the plug body (1); and a mesh tail grille area (5) is provided at one end of the handshake protrusion (4); A power line (6) is provided outside one end of the mesh tail grid area (5), and the power line (6) passes through the end surface of the mesh tail grid area (5) and extends to the inside of the plug body (1).

3. A three-pin AC plug according to claim 2, characterized in that: The power cord (6) is provided with a power branch line insulation sleeve (7) inside the plug body (1), and a power conductor (10) is provided inside the power branch line insulation sleeve (7); The outer end surface of the power conductor (10) is adapted to the inner end surface of the mounting sleeve (14), and the plug body (1), the rubber-coated covering protrusion (3), the handshake protrusion (4) and the tail grid area (5) are all made of insulating rubber.

4. The three-pin AC plug according to claim 1, characterized in that: The outer end face diameter of the limiting plate (11) in the top view direction is larger than the outer end face diameter of the plug-in copper column (2) in the top view direction, the outer end face diameter of the plug-in copper column (2) in the top view direction is larger than the outer end face diameter of the support connecting rod (12) in the top view direction, and the outer end face of the plug-in copper column (2) in the top view direction and the outer end face of the support mounting sleeve (13) in the top view direction are arranged in a coplanar state.

5. The three-pin AC plug according to claim 1, characterized in that: The outer end surface of the installation sleeve (14) is adapted to the inner end surface of the support installation sleeve (13), and the inner end surface of the elastic clamping block (15) in the top view direction is arranged in a coplanar state with the inner end surface of the installation sleeve (14) in the top view direction.

6. The three-pin AC plug according to claim 1, characterized in that: The number of the limiting teeth (16) is plural and they are arranged in an array state on both sides of the transverse central axis of the elastic clamping block (15) in the main viewing direction, and the outer end surfaces of the supporting mounting sleeve (13) and the limiting block (17) in the top viewing direction are arranged in a coplanar state.

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