Two-stage plug capable of being used for three-jack socket

Abstract

The invention discloses a two-stage plug capable of being used for a three-jack socket, and belongs to the technical field of power plugs, and the key points of the technical scheme are that the two-stage plug comprises an upper shell and a lower shell, the upper shell and the lower shell are connected through a bolt, and the upper shell is slidably connected with a grounding piece; the upper shell and the lower shell are both provided with anti-creeping dust removal pieces, pole pieces are arranged in the shells, the two pole pieces and the grounding piece are both connected with a bus through wires, and the upper shell and the grounding piece are matched to enable the two pole pieces to be converted into a three-jack socket state. According to the scheme, a two-hole socket can be used, a three-hole socket can be used in a matched mode, two states can be switched freely and rapidly, and the utilization rate of the plug is improved.

Description

Technical Field

[0001] The invention relates to the technical field of power plugs, in particular to a two-stage plug that can be used for a three-hole socket. Background Art

[0002] A power plug is usually inserted into a socket to connect to a power system, supplying power to electrical appliances to make them work. Plugs are divided into two-pin and three-pin plugs. In order to facilitate the connection of multiple plugs, people often use power strips. The number of sockets on existing power strips is limited. In addition, there are more plugs using two-hole sockets, resulting in the two-hole sockets on the power strips being often full and insufficient, while the three-hole sockets are rarely used and have vacancies, which reduces the utilization rate of the power strip. If you want to use it, you must buy another one, which is very inconvenient. In view of this, a two-stage plug that can be used for a three-hole socket is proposed. Summary of the invention

[0003] In view of the problems existing in the prior art, the purpose of the present invention is to provide a two-stage plug that can be used for a three-hole socket, that is, it can be used with a two-hole socket and can also be used in conjunction with a three-hole socket, and the two states can be switched freely and quickly to improve the utilization rate of the socket strip.

[0004] The above technical purpose of the present invention is achieved through the following technical solutions: a two-stage plug that can be used for a three-hole socket, comprising an upper shell and a lower shell, the upper shell and the lower shell are connected by bolts, a grounding piece is slidably connected to the upper shell, the upper shell and the lower shell are both provided with dust removal parts for preventing leakage, a pole piece is provided in the lower shell, the two pole pieces and the grounding piece are connected to a bus through a wire, and the upper shell and the grounding piece cooperate to convert the two pole pieces into a three-hole socket state.

[0005] In some embodiments, the upper shell is divided into an upper half and a lower half, each of the four corners of the upper half is provided with a connecting column, each of the four corners of the lower half is provided with a connecting groove, a spring is provided between each of the connecting columns and the connecting groove, and a fixing part for fixing the connecting column and the connecting groove is provided at a position of the lower half close to the bus.

[0006] In some embodiments, the fixing member includes a button, a connecting rod is fixedly connected to the button, a spring plug rod is connected to the end of the connecting rod, the end of the spring plug rod passes through the connecting column and the connecting groove, and the connecting rod is slidably connected to the lower half.

[0007] In some embodiments, a spring block is provided on one end of the upper half close to the two pole pieces, the spring block is used to lock the grounding piece, and the end of the spring block is provided as an inclined surface facing the bus. In some embodiments, a clamping plate is provided in the lower shell, the clamping plate is rotatably connected to the two pole pieces, a groove hole is provided on the lower shell, and a mounting groove column is provided in the upper shell, and the groove hole is connected to the mounting groove column through the bolt.

[0008] In some embodiments, the pole member includes a pole, a gear is provided on the pole, a torsion spring including a push plate is provided between the gear and the lower shell, a moving rod is connected to the bottom of the push plate, the moving rod is slidably connected to the upper half, the end of the moving rod is connected to a wiping block through a torsion spring, and a hidden area is provided between the moving rod and the wiping block.

[0009] In some embodiments, the wiping block includes a wiping portion and a concave portion.

[0010] In some embodiments, the grounding member includes a conductive rod, a fixed rod is provided at one end of the conductive rod, a T-block is provided at one end of the fixed rod, and a bidirectional gear rod is provided at the other end, a contact port passes through the fixed rod, the T-block is located above the upper shell, and the fixed rod is slidably connected to the upper shell.

[0011] In summary, the present invention has the following beneficial effects: The present invention is provided with a grounding piece, and through the cooperation of the grounding piece and the upper shell body, the plug can be switched between a two-hole socket state and a three-hole socket state. When the number of two-hole sockets is insufficient, the three-hole socket can be used for emergency, thereby improving the utilization rate of the power strip. The grounding piece is connected to the ground wire to ensure that no leakage will occur when the plug is used to adapt to the three-hole socket state, thereby further ensuring the safety of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention from other viewing angles; Figure 3 It is a disassembled diagram of the overall structure of the present invention; Figure 4 It is a sectional view of the overall structure of the upper shell of the present invention; Figure 5 It is a schematic diagram of the overall structure of the fixing member of the present invention; Figure 6 It is a schematic diagram of the overall structure of the dust removal component of the present invention; Figure 7 A cross-sectional view of the upper half of the present invention; Figure 8 It is a schematic diagram of the overall structure of the lower shell of the present invention; Fig. 9This is the overall structural diagram of the three-hole socket adapted to the present invention; Fig.10 This is a working state diagram of the grounding piece when the present invention is adapted to a three-hole socket; Fig.11 It is a schematic diagram of the working state of the dust removal component of the present invention.

[0013] In the figure: 1. upper shell; 11. upper half; 111. connecting column; 112. jack; 113. spring plug; 114. slide groove; 12. lower half; 121. connecting groove; 122. mounting slot column; 13. spring; 2. lower shell; 21. card plate; 22. groove hole; 3. pole piece; 31. pole; 32. gear; 33. torsion spring; 4. bus; 5. dust removal piece; 51. push plate; 52. moving rod; 53. wiping block; 531. wiping part; 532. concave part; 54. hidden area; 6. grounding piece; 61. conductive rod; 62. fixing rod; 63. T-block; 64. two-way gear rod; 65. contact port; 7. fixing piece; 71. button; 72. connecting rod; 73. spring plug; 8. bolt. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] See also Figure 1-10 A two-stage plug that can be used for a three-hole socket includes an upper shell 1 and a lower shell 2, the upper shell 1 and the lower shell 2 are connected by bolts 8, a grounding piece 6 is slidably connected to the upper shell 1, and both the upper shell 1 and the lower shell 2 are provided with a dust removal piece 5 for preventing leakage, a pole piece 3 is provided in the lower shell 2, the two pole pieces 3 and the grounding piece 6 are connected to the bus 4 through a wire, and the upper shell 1 cooperates with the grounding piece 6 to convert the two pole pieces 3 into a three-hole socket state.

[0016] In some embodiments, the upper shell 1 is divided into an upper half 11 and a lower half 12, a connecting column 111 is provided on each of the four corners of the upper half 11, a connecting groove 121 is provided on each of the four corners of the lower half 12, a spring 13 is provided between each connecting column 111 and the connecting groove 121, and a fixing part 7 for fixing the connecting column 111 and the connecting groove 121 is provided at a position near the bus 4 on the lower half 12.

[0017] In some embodiments, the fixing member 7 includes a button 71, to which a connecting rod 72 is fixedly connected, and the end of the connecting rod 72 is connected to a spring plug 73, the end of the spring plug 73 passes through the connecting column 111 and the connecting groove 121, and the connecting rod 72 is slidably connected to the lower half 12.

[0018] In some embodiments, a spring plug 113 is provided at one end of the upper half 11 near the two pole pieces 3, and the spring plug 113 is used to lock the grounding piece 6, and the end of the spring plug 113 is set as an inclined surface facing the bus 4. The inclined surface can facilitate the spring plug 113 to be quickly squeezed. In some embodiments, a clamping plate 21 is welded inside the lower shell 2, and the clamping plate 21 is rotatably connected to the two pole pieces 3. A groove hole 22 is provided on the lower shell 2, and an installation groove column 122 is provided in the upper shell 1. The groove hole 22 is connected to the installation groove column 122 through a bolt 8.

[0019] In some embodiments, the pole member 3 includes a pole 31 , a gear 32 is disposed on the pole 31 , and a torsion spring 33 is disposed between the gear 32 and the lower housing 2 .

[0020] In some embodiments, the dust removal component 5 includes a push plate 51, the bottom of which is connected to a moving rod 52, the moving rod 52 is slidably connected to the upper half 11, the end of the moving rod 52 is connected to a wiping block 53 through a torsion spring, and a hidden area 54 is arranged between the moving rod 52 and the wiping block 53.

[0021] In some embodiments, the wiping block 53 includes a wiping portion 531 and a concave portion 532. The concave portion 532 can provide space for the spring insert block 113 to prevent the spring insert block 113 from being squeezed and hindering the movement of the grounding member 6.

[0022] In some embodiments, the grounding member 6 includes a conductive rod 61, a fixed rod 62 is provided at one end of the conductive rod 61, a T-block 63 is provided at one end of the fixed rod 62, and a bidirectional gear rod 64 is provided at the other end. A contact port 65 passes through the fixed rod 62, the T-block 63 is located above the upper shell 1, and the fixed rod 62 is slidably connected to the upper shell 1.

[0023] Working principle: When the number of two-hole sockets on the power strip is sufficient, the operator can directly insert the two poles 31 into the two-hole sockets when using the plug. Before inserting it into the two-hole socket, the operator can use the dust removal piece 5 to remove dust and absorb water on the poles 31 in advance to prevent the plug from leaking electricity when in use, endangering the safety of the user. When the dust removal piece 5 is used, the operator pushes the push plates 51 on the upper shell 1 and the lower shell 2 toward the pole 31. Taking one of the two push plates 51 of the upper shell 1 as an example, the push plate 51 drives the moving rod 52 to move toward the pole 31 in the slide groove 114 of the upper half 11, and the moving rod 52 drives the wiping block 53 to move out of the range of the upper shell 1, and then the wiping block 53 is quickly folded by the torsion spring. Refer to the attached Fig.11 , at this time, the two wiping parts 531 on the wiping block 53 are just located on one side of the pole 31 respectively, and then the operator pushes the four push plates 51 to make reciprocating motion on the upper shell 1 and the lower shell 2, so that the four wiping blocks 53 clean the two poles 31 together to ensure that there are no impurities and water stains on the two poles 31 to prevent leakage during use. After cleaning, the operator only needs to push the push plate 51 backward to reset. The wiping block 53 will be blocked by the upper shell 1 and the lower shell 2 during the resetting process, and under the action of the torsion spring, the wiping block 53 will be forced to return to the initial state, and finally hidden in the upper shell 1 and the lower shell 2 to complete the reset. If the number of two-hole sockets on the power strip is insufficient, it is necessary to use the three-hole sockets on the power strip. At this time, the operator pushes the T-block 63, and the movement of the T-block 63 brings the entire grounding piece 6 to move toward the pole 31 until the two-way gear rod 64 in the grounding piece 6 moves to the position of the gear 32 on the two pole pieces 3. At this time, the conductive rod 61 is no longer hidden in the upper The housing 1 is directly exposed, and then the operator presses the buttons 71 on both sides of the lower half 12, and then the two buttons 71 respectively drive a connecting rod 72 to move, and the two connecting rods 72 move toward each other so that the spring plug 73 that passes through the connecting column 111 and the connecting groove 121 moves out of the range of the connecting column 111 and the connecting groove 121, and then the four connecting columns 111 on the upper half 11 move upward under the action of the spring 13, and the four connecting columns 111 jointly drive the upper half 11 to move upward, and then the upper half 11 The grounding piece 6 is lifted upward by the T-block 63, and then the operator releases the finger pressing the button 71, so that the spring plug rod 73 is reset by the elastic force. At this time, the spring plug rod 73 is just located at the bottom of the connecting column 111, and the connecting column 111 is pressed to prevent the upper half 11 from moving downward due to the influence of external force, resulting in the rotation angle of the two poles 31 not conforming to the angle of the three-hole socket, so that it cannot be inserted. During the process of the grounding piece 6 being lifted, the two-way gear rod 64 drives the two gears 32 to rotate. Fig. 9That is, the rotation of the two gears 32 drives one pole 31 to rotate to an angle suitable for the three-hole socket, and then the operator pushes the two push plates 51 located on the upper shell 1 to move, and the two push plates 51 drive one moving rod 52 to move, and the two moving rods 52 press one spring plug 113 during the movement, so that the two spring plugs 113 are inserted into the fixed rod 62 through the contact port 65 and contact the conductive rod 61. At this time, if the wiping block 53 moves out of the range of the upper half 11, the operator can flip the wiping block 53 to the hidden area 54, and then Push the push plate 51 again, hide the wiping block 53 in the upper half 11 while still keeping the spring plug 113 pressed, to ensure that the grounding piece 6 is fixed and does not move, and then cooperate with the conductive rod 61 of the grounding piece 6, the operator can insert the plug into the three-hole socket, that is, to realize the conversion of the two-stage plug and the three-stage plug. The end of the conductive rod 61 exceeds the ends of the two poles 31, which can be grounded in advance when the operator inserts it into the three-hole socket, for leakage protection and improved safety. The push plate 51, the moving rod 52 and the spring plug 113 are all conductive materials, which can be iron. However, the upper shell 1 and the lower shell 2 are both made of insulating materials, which can be plastic, but are not limited to this. When the weather is dry, the human body is prone to static electricity. When the operator unplugs the plug, the static electricity on the body will be connected to the conductive rod 61 through the push plate 51, the moving rod 52 and the spring plug block 113 and directly enter the ground wire to avoid accidents caused by electric sparks. If the operator wants to return to the two-stage plug state, press the button 71 again. The button 71 drives the spring plug rod 73 to leave the range of the connecting groove 121 through the connecting rod 72, and no longer resists the connecting column 111. Then the operator Then press the upper part 11 until it fits with the lower part 12, then release the button 71, and insert the spring rod 73 into the connecting groove 121 and the socket 112 of the connecting column 111 again to fix the upper part 11 and the lower part 12 together. The gears 32 on the two poles 31 are no longer restricted by the two-way gear rod 64, and are reset under the action of the torsion spring 33 to recover to the state of adapting to the two-hole socket. Finally, the operator pushes the T-block 63 back to its original position. The operation is simple and convenient, and free switching to adapt to the form of two-hole sockets and three-hole sockets is realized, thereby improving the utilization rate of the power strip.

[0024] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A two-stage plug that can be used in a three-hole socket, characterized in that: The invention comprises an upper shell (1) and a lower shell (2), wherein the upper shell (1) and the lower shell (2) are connected by bolts (8), a grounding piece (6) is slidably connected to the upper shell (1), and both the upper shell (1) and the lower shell (2) are provided with dust removal pieces (5) for preventing leakage, a pole piece (3) is provided in the lower shell (2), and both the two pole pieces (3) and the grounding piece (6) are connected to a bus (4) by wires, and the upper shell (1) cooperates with the grounding piece (6) to convert the two pole pieces (3) into a three-hole socket state.

2. A two-stage plug that can be used in a three-hole socket according to claim 1, characterized in that: The upper shell (1) is divided into an upper half (11) and a lower half (12); each of the four corners of the upper half (11) is provided with a connecting column (111); each of the four corners of the lower half (12) is provided with a connecting groove (121); a spring (13) is provided between each of the connecting columns (111) and the connecting groove (121); and a fixing member (7) for fixing the connecting column (111) and the connecting groove (121) is provided at a position close to the bus (4) on the lower half (12).

3. A two-stage plug that can be used in a three-hole socket according to claim 2, characterized in that: The fixing member (7) comprises a button (71), a connecting rod (72) being fixedly connected to the button (71), an end of the connecting rod (72) being connected to a spring insert rod (73), an end of the spring insert rod (73) passing through the connecting column (111) and the connecting groove (121), and the connecting rod (72) being slidably connected to the lower half (12).

4. A two-stage plug that can be used in a three-hole socket according to claim 2, characterized in that: A spring plug (113) is provided on one end of the upper half (11) close to the two pole pieces (3), the spring plug (113) being used to lock the grounding piece (6), and a side of the end of the spring plug (113) facing the bus (4) being arranged as an inclined surface.

5. A two-stage plug that can be used in a three-hole socket according to claim 1, characterized in that: A clamping plate (21) is provided in the lower shell (2), the clamping plate (21) is rotatably connected to the two pole pieces (3), a groove hole (22) is provided on the lower shell (2), a mounting groove column (122) is provided in the upper shell (1), and the groove hole (22) is connected to the mounting groove column (122) via the bolt (8).

6. A two-stage plug that can be used in a three-hole socket according to claim 1, characterized in that: The pole piece (3) comprises a pole (31), a gear (32) is arranged on the pole (31), and a torsion spring (33) is arranged between the gear (32) and the lower housing (2).

7. A two-stage plug that can be used in a three-hole socket according to claim 1, characterized in that: The dust removal member (5) comprises a push plate (51), the bottom of the push plate (51) is connected to a moving rod (52), the moving rod (52) is slidably connected to the upper half (11), the end of the moving rod (52) is connected to a wiping block (53) via a torsion spring, and a hidden area (54) is provided between the moving rod (52) and the wiping block (53).

8. A two-stage plug that can be used in a three-hole socket according to claim 7, characterized in that: The wiping block (53) comprises a wiping portion (531) and a concave portion (532).

9. A two-stage plug applicable to a three-hole socket according to claim 1, characterized in that: The grounding member (6) comprises a conductive rod (61), a fixing rod (62) being provided at one end of the conductive rod (61), a T-shaped block (63) being provided at one end of the fixing rod (62), and a bidirectional toothed rod (64) being provided at the other end, a contact opening (65) penetrating the fixing rod (62), the T-shaped block (63) being located above the upper housing (1), and the fixing rod (62) being slidably connected to the upper housing (1).

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