CN204927731U - A screw type power plug - Google Patents

Abstract

The utility model relates to a spiral power plug, for split type structure, including connecting and inserted sheet portion, it is equipped with the switch -on post to connect the lower extreme, contact outside switch -on toe end sets up, touch the circle around on the switch -on post outside setting up, upper end connecting forms the charge jack or the line of connecting, inserted sheet portion is including piece and the inserted sheet of pegging graft, the inside connection screw of having seted up of the piece of pegging graft, set up interior contact bottom the connection screw, touch the circle around connecting screw upper end opening in setting up, the inserted sheet surface is equipped with and is used for the elastic conductor who switches on with the external power source butt to contact, the elastic conductor contact is equipped with at least two, and with be connected the screw, interior contact touch in and the circle wherein at least two switch on, the switch -on post adopts threaded connection with being connected the screw, after the screw is connected to switch -on post screw in, the switch -on post with be connected the screw, contact and interior contact, touch to enclose to touch in and enclose respectively that the butt switches on outward. Compared with the prior art, the utility model discloses spiral power plug simple structure can improve operational safety.

Description

A screw type power plug

technical field

The utility model relates to a power plug, in particular to a spiral power plug.

Background technique

For the electrical power plugs used in daily life, various electrical appliance manufacturers use traditionally shaped power connection plugs to manufacture power connection lines so that each corner of the power connection line plugs is exposed in a strip shape to occupy space. With the development of social economy, a large number of portable computers and portable electrical appliances are used in daily life; it is a very common thing for anyone to use a power connection line to get electricity from a power supply through a power plug in order to apply these electrical appliances. The traditional plug with two, three or four prongs is easy to pierce the travel bag under the action of external force because each metal prong is very sharp and exposed. Therefore, it is not convenient to carry such a conventional power connection cable in a travel bag.

Chinese patent 103956620A discloses a smart home power connection system. The power connection system includes a power connection guide rail and a socket board module; there are slots on the top surface of the power connection guide rail, and three conductive copper wires are placed in the slots. The conductive copper wires They are respectively connected to the live wire, neutral wire and ground wire of the power supply; the socket board module can be inserted into the slot of the power connection guide rail. By rationally modifying the wiring form to replace the traditional way of buried wall wiring in advance, the complexity of decoration is simplified and the convenience of installation is increased. Use the position of the skirting line to set the power connection guide rail (extend the power bus system to all rooms, and provide sockets for electrical plugs with the socket board module that can be plugged anywhere, so as to provide available power for household appliances nearby. The whole system is easy to install and easy to operate , beautiful and practical, suitable for popularization in ordinary household smart home electrical systems, there is a broad space for development and utilization. The socket board module in this patent can conveniently provide available power for household appliances, but the socket board module still cannot replace the role of traditional plugs, so it provides A power plug is convenient for changing people's traditional electricity consumption mode.

Utility model content

The purpose of this utility model is to provide a screw-type power plug in order to overcome the above-mentioned defects in the prior art.

The purpose of this utility model can be achieved through the following technical solutions:

A screw-type power plug, which is a split structure, including a joint and an insert part. The lower end of the joint is provided with a connecting column, an external contact is arranged at the bottom of the connecting column, and an external contact ring is arranged around the upper end of the connecting column. , forming a charging jack or connecting a power cord at the upper end of the connector, the insert part includes a plug block and a plug piece, the inside of the plug block is provided with a connection screw hole, and an internal contact is set at the bottom of the connection screw hole. An inner contact ring is arranged around the opening of the upper end of the connecting screw hole, and the surface of the insert is provided with elastic conductor contacts for abutting and conducting with an external power supply. At least two of the inner contact and the inner contact ring are connected; the connecting column and the connecting screw hole are connected by threads, and when the connecting column is screwed into the connecting screw hole, the connecting column and the connecting screw hole are abutted for conduction , the outer contact and the inner contact are abutted for conduction, the outer contact ring and the inner contact ring are abutted for conduction, and the insert piece is inserted into the power rail to make the power plug conductive.

The outer side of the connection post is provided with an external thread, and the inner side of the connecting screw hole is provided with an internal thread that matches the external thread. All or part of the external thread and the internal thread are made of conductors, so as to realize the connection between the connection post and the connection. The abutment conduction of the screw hole.

A conductive sheet is embedded in the insert, one end of the conductive sheet is exposed on the surface of the insert to form an elastic conductor contact, and the other end of the conductive sheet forms a connecting screw hole, an inner contact and an inner contact ring respectively.

The connection column, the outer contact and the outer contact ring in the connector are in conduction with the charging jack or the power line at the upper end of the connector.

Preferably, there are three elastic conductor contacts, and the three elastic conductor contacts are respectively located at different heights of the insert. Further preferably, the distance between the elastic conductor contact for abutting and conducting with the live wire is the shortest from the inserting end of the insertion piece.

At least one of the outer contact and the inner contact is configured as an elastic contact.

The outer contact ring is preferably configured in the shape of a contact ring on the end face, and the inner contact ring is preferably configured in the shape of a contact groove on the end face.

Preferably, the plug-in block and the plug-in piece are of an integrated structure.

The insert is a planar structure. The insert is preferably rectangular in shape.

Both the joint and the socket block are insulators.

The power plug also includes a plug cover for covering and protecting the inserts, so as to prevent the inserts from being bent, twisted or broken under the action of external force.

The surface shape of the elastic conductor contact is preferably designed as an arc or a square. When adopting elastic conductor contacts with a square surface, the inner conductor of the corresponding power connection guide rail can be cylindrical, so that the contact effect is better, but because the square surface occupies a larger area, the length of the insert will be longer. When the surface shape of the elastic conductor contact is arc-shaped, the corresponding conductor in the power connection rail needs to be in the form of a contact piece, which will make the structure design of the power connection rail more complicated, but due to the area occupied by the circular contact Small, so the length of the insert can be shortened.

When the power plug of the utility model is used, it is used as a supporting power connection guide rail. There are three conductors installed in the power connection guide rail, which are respectively connected to the live wire, ground wire and neutral wire of the power supply. The conductors are rigid conductors. When in use, the utility model A new type of power plug blade is inserted into the power connection guide rail, so that the elastic conductor contacts on the blade contact with the three rigid conductors and make the power plug electrified.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

1. The plug of the utility model is a split structure, including the joint and the insert part, which can be manufactured separately by mold opening, thus reducing the production cost.

2. In the utility model, the joint and the insert part are connected by thread connection, and at the same time, the inner contact and the outer contact, the outer contact ring and the inner contact ring are also set, and the connecting column needs to be completely screwed into the connecting screw hole Therefore, the utility model adopts a screw connection method to improve the operation safety of the power plug.

3. Two or three terminals of the traditional plug are arranged on the same surface of the plug in the form of elastic conductor contacts by using a sheet-shaped insert, so that the three-dimensional plug becomes a flat plug. This sheet-shaped plug can reduce the The space occupied by the traditional plug and the amount of insulating material used to manufacture the plug are saved, meeting the requirements for energy saving and emission reduction.

4. In the present utility model, three elastic conductor contacts can be respectively arranged at different heights of the insertion piece, and the distance between the insertion end of the insertion piece of the elastic conductor contact used to contact and conduct with the live wire is the closest, and the structure changes Instead of the same height structure of the traditional plug, the height of the neutral wire, the ground wire and the live wire are set at different points on the two-dimensional plane. The position close to the insertion end is used to prevent electric sparks generated by friction between conductors when taking electricity.

5. The two or three elastic conductor contacts connected to the power supply provided on the insert of the power plug of the utility model are on the same plane of the insert or on the two surfaces of the insert. The conductor is connected to the live wire, the ground wire and the neutral wire of the power supply. The three rigid conductors are also located in the same plane, and the three elastic conductor contacts are respectively connected to the three rigid conductors. On the one hand, when the elastic conductor contacts are set as elastic conductor contacts, the reliability and stability of the connection are guaranteed through elastic deformation; If they are adjacently inserted into the power connection guide rail, they will not interact with each other to cause deformation of the conductors in the power connection guide rail and cause poor contact.

6. The power plug of the utility model can be inserted anywhere on the power connecting guide rail, so it can be used flexibly.

Description of drawings

Fig. 1 is a schematic structural diagram of a screw-type power plug in Embodiment 1;

Fig. 2 is the structural representation of joint in embodiment 1;

3 is a schematic diagram of the three-dimensional structure of the insert part in Embodiment 1;

Fig. 4 is the structural representation of joint in embodiment 2;

Fig. 5 is a schematic diagram of the structure of an elastic conductor contact with an arc surface shape;

Fig. 6 is a schematic diagram of the structure of the elastic conductor contact with a square surface shape.

Numbers in the figure: 1 is the joint, 11 is the connection column, 12 is the external contact, 13 is the external contact ring, 2 is the insert part, 21 is the plug block, 22 is the insert, 23 is the connecting screw hole, 24 It is an elastic conductor contact, 25 is an inner contact, 26 is an inner contact ring, 3 is a charging jack, and 4 is a power cord.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Example 1

A screw-type power plug, as shown in Figures 1 to 3, is a split structure, including a joint 1 and an insert part 2, the lower end of the joint 1 is provided with a connection post 11, and the bottom end of the connection post 11 is provided with an external contact At point 12, an outer contact ring 13 is arranged around the upper end of the connection column 11, and the power line 4 is connected to the upper end of the joint 1. The power line 4 is turned on. Inserting part 2 includes inserting block 21 and inserting piece 22, inserting block 21 is provided with connecting screw hole 23 inside, is provided with internal contact 25 at the bottom of connecting screw hole 23, is provided with inner contact ring around the opening of the upper end of connecting screw hole 23 26. The surface of the insertion piece 22 is provided with elastic conductor contacts 24 for abutting and conducting with the external power supply. At least two of them are conductive; the connecting column 11 is threadedly connected with the connecting screw hole 23, and when the connecting column 11 is screwed into the connecting screw hole 23, the connecting column 11 and the connecting screw hole 23 are abutted for conduction, and the external contact 12 is in contact with the inner contact 25 for conduction, and the outer contact ring 13 is in contact with the inner contact ring 26 for conduction. Inserting the insert 22 into the power rail can make the power plug conduct electricity.

Wherein, the outer side of the connecting post 11 is provided with external threads, and the inner side of the connecting screw hole 23 is provided with internal threads matched with the external threads. The abutment of 23 conducts.

The insert 22 is embedded with a conductive sheet, one end of the conductive sheet is exposed on the surface of the insert 22 to form an elastic conductor contact 24 , and the other end of the conductive sheet forms a connecting screw hole 23 , an inner contact 25 and an inner contact ring 26 respectively.

In this embodiment, three elastic conductor contacts 24 are provided in total, and the three elastic conductor contacts 24 are respectively located at different heights of the insertion piece 22, and the elastic conductor contacts for abutting and conducting with the live wire are inserted into the insertion piece from the insertion piece. end is the closest. At least one of the outer contact 12 and the inner contact 25 is configured as an elastic contact. The insert 22 is a planar structure. The insert piece 22 is preferably rectangular in shape. Both the joint 1 and the plug block 21 are insulators.

As shown in FIG. 5 , in this embodiment, the surface shape of the elastic conductor contact 3 is arc-shaped. When adopting elastic conductor contacts whose surface shape is arc-shaped, the conductors in the corresponding power connection rails need to be in the form of contact pieces, which will make the structural design of the power connection rails more complicated, but due to the occupied area of the circular contacts The area is small, so the length of the insert can be shortened.

When the power plug of this embodiment is used, it is used as a supporting power connection rail. There are three conductors installed in the power connection rail, which are respectively connected to the live wire, ground wire and neutral wire of the power supply. The conductors are rigid conductors. When in use, the utility model The plug blade of the power plug is inserted into the power connection guide rail, so that the elastic conductor contact on the plug blade abuts against the three rigid conductors and conducts, so that the power plug is electrified.

Example 2

As shown in Figure 4, the difference from Embodiment 1 is that a charging jack 3 is formed on the upper end of the joint 1, and the charging jack 3 is a USB jack, and the charging jack 3 is connected to the connection post 11 in the joint 1. , the outer contact 12 and the outer contact ring 13 are in conduction.

Example 3

The difference from Embodiment 1 lies in that the plugging block 21 and the inserting piece 22 are of an integral structure.

Example 4

The difference from Embodiment 1 is that the power plug also includes a plug cover for covering the blades to protect the blades, so as to prevent the blades from being bent, twisted or broken under the action of external force.

Example 5

As shown in FIG. 6 , the difference from Embodiment 1 is that the surface shape of the elastic conductor contact 3 is square. When using elastic conductor contacts with a square surface, the inner conductor of the corresponding electric power connection rail can be cylindrical, so that the contact effect is better, but the square surface occupies a larger area, resulting in a longer length of the insert.

The above description of the embodiments is for those of ordinary skill in the technical field to understand and use the utility model. It is obvious that those skilled in the art can easily make various modifications to these embodiments, and apply the general principles described here to other embodiments without creative efforts. Therefore, the utility model is not limited to the above-mentioned embodiments, and improvements and modifications made by those skilled in the art according to the disclosure of the utility model without departing from the category of the utility model should be within the protection scope of the utility model.

Claims (10)

1. a spiral attaching plug, it is characterized in that, for split-type structural, comprise joint (1) and insert part (2), described joint (1) lower end is provided with connects post (11), in connection post (11) bottom, outer contact (12) is set, around connection post (11) upper end, outer tactile circle (13) is set, charging jacks (3) or connecting power line (4) is formed in the upper end of joint (1), described insert part (2) comprises grafting block (21) and inserted sheet (22), described grafting block (21) inside offers connecting screw hole (23), in connecting screw hole (23) bottom, interior contact (25) is set, interior tactile circle (26) is set around connecting screw hole (23) upper end open, described inserted sheet (22) surface is provided with the elastic conductor contact (24) for abutting conducting with external power source, described elastic conductor contact (24) is provided with at least two, and with connecting screw hole (23), interior contact (25) and interior tactile circle (26) wherein at least two conductings,

Described connection post (11) adopts with connecting screw hole (23) and is threaded, after connection post (11) screws in connecting screw hole (23), connect post (11) and abut conducting with connecting screw hole (23), outer contact (12) abuts conducting with interior contact (25), and outer tactile circle (13) abuts conducting with interior tactile circle (26).

2. a kind of spiral attaching plug according to claim 1, it is characterized in that, external screw thread is offered in the outside of described connection post (11), the internal thread matched with external screw thread is offered in described connecting screw hole (23) inner side, the all or part of employing conductor of described external screw thread and internal thread is formed, with realize connect post (11) with connecting screw hole (23) abut conducting.

3. a kind of spiral attaching plug according to claim 1, it is characterized in that, described inserted sheet is embedded conducting strip in (22), one end of described conducting strip is exposed inserted sheet (22) surface and is formed elastic conductor contact (24), and the described conducting strip other end forms connecting screw hole (23), interior contact (25) and interior tactile circle (26) respectively.

4. a kind of spiral attaching plug according to claim 1, it is characterized in that, the charging jacks (3) of the upper end of the connection post (11) in described joint (1), outer contact (12) and outer tactile circle (13) and joint (1) or power line (4) conducting.

5. a kind of spiral attaching plug according to claim 1, it is characterized in that, described elastic conductor contact (24) lays respectively at the differing heights place of inserted sheet (22).

6. a kind of spiral attaching plug according to claim 1 or 4, is characterized in that, resilient contact is arranged in described outer contact (12) and interior contact (25) at least one.

7. a kind of spiral attaching plug according to claim 1, it is characterized in that, described grafting block (21) and inserted sheet (22) are integral type structure.

8. a kind of spiral attaching plug according to claim 1, it is characterized in that, described inserted sheet (22) is planar structure.

9. a kind of spiral attaching plug according to claim 1, it is characterized in that, the surface configuration of described elastic conductor contact (24) is circular arc or square.

10. a kind of spiral attaching plug according to claim 1, it is characterized in that, described attaching plug also comprises for covering the plug cover protecting inserted sheet (22) on inserted sheet (22).