Safety three-plug power plug

Abstract

The utility model discloses a safety three-plug power plug, which relates to the technical field of three-plug power plugs and comprises a plug body and a groove arranged at the upper end of the plug body, a cross rod is fixedly arranged in the groove, a connecting plate is rotatably sleeved on the rod wall of the cross rod, and a protective shell is arranged at one end of the connecting plate far away from the plug body through a connecting assembly. The protection shell is matched with a pin cover of the plug body, a clamping ring is fixedly arranged at the bottom of the protection shell, a connecting rod is fixedly arranged on the back side of the plug body, an arc-shaped rod is fixedly arranged at the end of the connecting rod, a limiting pipe is arranged on the rod wall of the arc-shaped rod through an elastic sliding mechanism, and the clamping ring is arranged between the arc-shaped rod and the limiting pipe. According to the groove, the cross rod, the connecting plate, the connecting assembly, the protective shell and the protective sponge provided by the utility model, the protective shell and the plug can be integrally arranged, and the pins of the plug can be covered and protected when the plug needs to be stored while the normal use of the plug is not influenced, so that the use effect of the plug is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of three-pin power plugs, in particular to a safe three-pin power plug. Background Art

[0002] A three-prong power plug, commonly known as a three-phase plug or a three-pole plug, is a type of power plug with three pins. It is mainly used to connect devices to a three-phase AC power supply to ensure the normal operation of the device.

[0003] When currently packaging a power plug, a protective shell is used to wrap and protect the multiple pins of the plug. However, the current protective shell is generally provided independently of the plug. When the plug is used, the protective shell may be lost or omitted, resulting in the pins being unprotected when the plug is not used and needs to be stored. The pins are easily corroded by dust and impurities in the air and become worn, thereby reducing the stability of the plug.

[0004] Therefore, we propose a safe three-prong power plug to solve the above problems. Utility Model Content

[0005] In view of the above problems existing in the existing safety three-pin power plug, the present utility model is proposed.

[0006] Therefore, the utility model aims to provide a safe three-prong power plug, which solves the problem that the internal pins of the three-prong power plug cannot be effectively protected when it needs to be stored.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A safety three-pin power plug comprises a plug body and a groove opened at the upper end of the plug body, a cross bar is fixedly provided in the groove, a connecting plate is rotatably sleeved on the rod wall of the cross bar, a protective shell is provided at one end of the connecting plate away from the plug body through a connecting assembly, the protective shell cooperates with the pin cover of the plug body, a clamping ring is fixedly provided at the bottom of the protective shell, a connecting rod is fixedly provided on the back side of the plug body, an arc rod is fixedly provided at the end of the connecting rod, a limiting tube is provided on the rod wall of the arc rod through an elastic sliding mechanism, and the clamping ring is provided between the arc rod and the limiting tube.

[0009] Preferably, the connecting assembly includes a fixing rod, a rotation groove is formed at one end of the connecting plate away from the plug body, the fixing rod is fixed in the rotation groove, and a U-shaped plate is rotatably sleeved on the rod wall, and the bottom of the U-shaped plate is fixedly connected to the protective shell.

[0010] Preferably, the elastic sliding mechanism includes two symmetrically arranged guide rods, and the two guide rods are respectively fixed on both sides of the outer wall of the arc rod. The tube wall of the limiting tube is provided with two symmetrically arranged sliding holes. The guide rod is slidably arranged in the sliding hole and fixedly connected to the inner wall of the sliding hole through a spring. The end of the guide rod passes through the sliding hole and extends to the outside.

[0011] Preferably, a protective sponge is fixedly provided on the inner wall of the protective shell, and a plurality of slots matching with the internal pins of the plug body are provided inside the protective sponge.

[0012] Furthermore, placement grooves are provided on both sides of one end of the connecting plate close to the plug body, and torsion springs are sleeved on both ends of the cross bar. The torsion spring is located in the placement groove, and both ends are fixedly connected to the cross bar and the connecting plate respectively.

[0013] Preferably, a pull rod is provided on the tube wall fixing sleeve of the limiting tube.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] 1. The utility model can integrate the protective shell with the plug through the grooves, cross bars, connecting plates, connecting components, protective shells and protective sponges, and can cover and protect the pins of the plug when the plug needs to be stored without affecting the normal use of the plug, thereby improving the use effect of the plug.

[0016] 2. The utility model, through the protective shell, clamping ring, connecting rod, arc rod, limiting tube, elastic sliding mechanism and pulling rod, can fix the position of the protective shell when the plug is in use, and try to avoid the protective shell from shaking randomly or separating from the plug. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a side structural schematic diagram of the utility model;

[0020] Figure 3 For the utility model Figure 2 A magnified schematic diagram of part A;

[0021] Figure 4It is a schematic diagram of the internal structure of the protective shell of the utility model.

[0022] Description of reference numerals:

[0023] 1. Plug body; 2. Cross bar; 3. Connecting plate; 4. Protective shell; 5. Snap ring; 6. Connecting rod; 7. Arc rod; 8. Limiting tube; 9. Fixed rod; 10. U-shaped plate; 11. Guide rod; 12. Spring; 13. Protective sponge; 14. Slot; 15. Torsion spring; 16. Pull rod. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] The utility model embodiment discloses a safety three-pin power plug.

[0026] The utility model provides Figure 1-4 A safety three-pin power plug shown in the figure comprises a plug body 1 and a groove opened at the upper end of the plug body 1, a cross bar 2 is fixedly arranged in the groove, a connecting plate 3 is provided with placement grooves on both sides of one end close to the plug body 1, both ends of the cross bar 2 are sleeved with torsion springs 15, the torsion spring 15 is located in the placement groove, and the two ends are respectively fixedly connected to the cross bar 2 and the connecting plate 3, the rod wall of the cross bar 2 is rotatably sleeved with the connecting plate 3, and the end of the connecting plate 3 away from the plug body 1 is provided with a protective shell 4 through a connecting component, the inner wall of the protective shell 4 is fixedly provided with a protective sponge 13, and the interior of the protective sponge 13 is provided with a plurality of mating plugs A slot 14 for the pin inside the body 1, a connecting assembly includes a fixing rod 9, a rotating groove is opened at one end of the connecting plate 3 away from the plug body 1, the fixing rod 9 is fixed in the rotating groove, and a U-shaped plate 10 is rotatably sleeved on the rod wall, the bottom of the U-shaped plate 10 is fixedly connected to the protective shell 4, the protective shell 4 is matched with the pin cover of the plug body 1, a snap ring 5 is fixedly provided at the bottom of the protective shell 4, a connecting rod 6 is fixedly provided on the back side of the plug body 1, an arc rod 7 is fixedly provided at the end of the connecting rod 6, a limiting tube 8 is provided on the rod wall of the arc rod 7 through an elastic sliding mechanism, and the snap ring 5 is provided between the arc rod 7 and the limiting tube 8.

[0027] When the plug is not in use, the protective shell 4 wraps around the outside of multiple pins of the plug body 1 and protects the pins through the protective sponge 13. When the plug needs to be used, it can be rotated to the back side of the plug body 1 under the relative rotation of the cross bar 2 and the connecting plate 3 as well as the fixing rod 9 and the U-shaped plate 10. At this time, the pins of the plug body 1 are exposed and can be plugged in. At this time, the connecting plate 3 is twisted by the torsion spring 15 during rotation, and then the snap ring 5 under the protective shell 4 is set in the arc rod 7, and the snap ring 5 is snapped through the sliding cooperation of the limiting tube 8 and the arc rod 7, and the position of the protective shell 4 is determined. At this time, the setting of the protective shell 4 does not affect the plug body 1, and when the plug needs to be stored after use, the snap ring 5 is pulled out from the limiting tube 8 and the arc rod 7, and under the torsion recovery of the torsion spring 15, the protective shell 4 rotates and is again covered on the outside of the pins for wrapping and protection.

[0028] In order to enable the clamping ring 5 to stably enter and exit the arc rod 7 and the limiting tube 8, as shown in FIG. Figure 2-3 As shown, the elastic sliding mechanism includes two symmetrically arranged guide rods 11, and the two guide rods 11 are respectively fixed on both sides of the outer wall of the arc rod 7. The tube wall of the limiting tube 8 is provided with two symmetrically arranged sliding holes. The guide rod 11 is slidably arranged in the sliding hole and is fixedly connected to the inner wall of the sliding hole through a spring 12. The end of the guide rod 11 passes through the sliding hole and extends to the outside. The tube wall of the limiting tube 8 is fixedly sleeved with a pull rod 16.

[0029] Before the protective shell 4 is flipped over, the pull rod 16 is pulled, and under the sliding cooperation of the guide rod 11 and the sliding hole, the limiting tube 8 slides along the arc rod 7 and squeezes the spring 12, and then the retaining ring 5 enters the arc rod 7, and the pull rod 16 is released. Under the elastic force recovery of the spring 12, the limiting tube 8 is sleeved on the outside of the other end of the arc rod 7 and limits the retaining ring 5.

[0030] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A safety three-pin power plug, comprising a plug body (1) and a groove formed at the upper end of the plug body (1), It is characterized in that A cross bar (2) is fixedly provided in the groove, a connecting plate (3) is rotatably sleeved on the rod wall of the cross bar (2), a protective shell (4) is provided at one end of the connecting plate (3) away from the plug body (1) through a connecting assembly, the protective shell (4) cooperates with the pin cover of the plug body (1), a clamping ring (5) is fixedly provided at the bottom of the protective shell (4), a connecting rod (6) is fixedly provided on the back side of the plug body (1), an arc-shaped rod (7) is fixedly provided at the end of the connecting rod (6), a limiting tube (8) is provided on the rod wall of the arc-shaped rod (7) through an elastic sliding mechanism, and the clamping ring (5) is provided between the arc-shaped rod (7) and the limiting tube (8).

2. The safety three-pin power plug according to claim 1, It is characterized in that The connecting assembly comprises a fixing rod (9), a rotation groove is formed at one end of the connecting plate (3) away from the plug body (1), the fixing rod (9) is fixed in the rotation groove, and a U-shaped plate (10) is rotatably sleeved on the rod wall, and the bottom of the U-shaped plate (10) is fixedly connected to the protective shell (4).

3. The safety three-pin power plug according to claim 1, It is characterized in that The elastic sliding mechanism comprises two symmetrically arranged guide rods (11), the two guide rods (11) are respectively fixedly arranged on both sides of the outer wall of the arc-shaped rod (7), the tube wall of the limit tube (8) is provided with two symmetrically arranged sliding holes, the guide rod (11) is slidably arranged in the sliding hole, and is fixedly connected to the inner wall of the sliding hole through a spring (12), and the end of the guide rod (11) passes through the sliding hole and extends to the outside.

4. The safety three-pin power plug according to claim 1, It is characterized in that A protective sponge (13) is fixedly provided on the inner wall of the protective shell (4), and a plurality of slots (14) are provided inside the protective sponge (13) for matching with the internal pins of the plug body (1).

5. The safety three-pin power plug according to claim 1, It is characterized in that The connecting plate (3) has placement grooves on both sides of one end close to the plug body (1), and torsion springs (15) are sleeved on both ends of the cross bar (2). The torsion spring (15) is located in the placement groove, and the two ends are fixedly connected to the cross bar (2) and the connecting plate (3) respectively.

6. The safety three-pin power plug according to claim 1, It is characterized in that A pull rod (16) is fixedly mounted on the tube wall of the position limiting tube (8).

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