Anti-pull-off charging plug

Abstract

The anti-pull-off charging plug comprises a pipe body, a lock tooth nut, a lock tooth inner pipe, an outer pipe, a rear mandrel and a horn mouth, the inside of the pipe body is hollow, the horn mouth and the rear mandrel are arranged in the pipe body, the first end of the rear mandrel penetrates out of the pipe body and extends to the outer side of the pipe body, and the second end of the rear mandrel is clamped in the first end of the horn mouth. The second end of the horn mouth is located in the pipe body, the inner diameter of the second end of the horn mouth is larger than that of the first end, the pipe body is sleeved with the outer pipe, the outer pipe and the pipe body are sleeved with the tooth locking inner pipe, the outer pipe is sleeved with the tooth locking nut which is connected with the tooth locking inner pipe, and threads are arranged on the inner side of the tooth locking nut. The utility model has the advantages of simple structure, looseness prevention and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of charging plugs, and in particular relates to an anti-pull-off charging plug. Background Art

[0002] With the rapid development of social economy, charging plugs, especially DC charging plugs, are widely used in daily life. DC actually means direct current in English, so DC line is direct current line, DC line is the conductor for transmitting direct current, all wires connected to DC power supply can be collectively referred to as DC line, DC line can transfer the switching power supply or transformer through AC / DC current to other places, such as LCD monitors, surveillance cameras, laptops, equipment controller power supply, DC line has diverse uses and low price, which is very beneficial to people's daily life.

[0003] The existing DC charging plug is very easy to pull off. For example, patent application No. 202020286525.7 discloses a DC head that is easy to quickly connect and prevent from falling off, including a DC connecting line, one end of the DC connecting line is equipped with a DC plug interface end, and the other end of the DC plug interface end is equipped with a plug-in fixed end, a metal connecting end is arranged in the middle of the plug-in fixed end, and two connecting protruding blocks are evenly arranged on the outside of the plug-in fixed end. A DC female socket interface is installed at the other end of the DC connecting line, and a connecting hole is arranged inside the DC female socket interface. A data connecting end is arranged on the outside of one end of the connecting hole, and two connecting protruding block fixing slots are evenly arranged on the outside of the DC female socket interface. Two connecting protruding block card positioning slots are evenly arranged on the end surface of the DC female socket interface, and an anti-falling top block is installed on one side of the connecting protruding block card positioning slot, and a storage slot is arranged between the anti-falling top block and the DC female socket interface, and a reset spring is arranged in the middle of the storage slot, and a guide rail is arranged on one side of the storage slot, and a guide slider is arranged on the outside of one end of the anti-falling top block. The DC that is easy to quickly connect and prevent from falling off can realize quick connection and prevent from falling off, but has a complex structure and is not convenient for specific implementation. Utility Model Content

[0004] In order to solve the deficiencies in the prior art, the utility model provides an anti-pull-off charging plug which has a simple structure and can effectively prevent falling off.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] The anti-pull-off charging plug comprises a tube body, a locking nut, a locking inner tube, an outer tube, a rear spindle and a bell mouth. The interior of the tube body is hollow. The bell mouth and the rear spindle are both arranged in the tube body and the first end of the rear spindle passes through the tube body and extends to the outside of the tube body. The second end of the rear spindle is clamped in the first end of the bell mouth. The second end of the bell mouth is located in the tube body and the inner diameter of the second end of the bell mouth is larger than the inner diameter of the first end. The outer tube is sleeved on the tube body, the locking inner tube is sleeved on the outer tube and the tube body, the locking nut is sleeved on the outer tube and connected to the locking inner tube, and a thread is provided on the inner side of the locking nut.

[0007] Preferably, the tube body is made of plastic.

[0008] Preferably, a plurality of knurled grooves are provided on the outer side of the locking nut.

[0009] By adopting the above technical solution, the utility model has the following beneficial effects:

[0010] The utility model is provided with a tube body, a locking nut, a locking inner tube, an outer tube, a rear spindle and a bell mouth as a whole, and has a simple structure. In addition, when used, the locking nut can be locked by the thread inside to prevent loosening after connection.

[0011] In summary, the utility model has the advantages of simple structure and preventing loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 yes Figure 1 Sectional view of AA in the middle;

[0014] Figure 3 yes Figure 1 Left view of;

[0015] Figure 4 yes Figure 1 Right view of . DETAILED DESCRIPTION

[0016] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0017] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0018] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0019] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] Example 1

[0022] In this embodiment, a pull-off-proof charging plug is provided, which has a simple overall structure, can prevent loosening, and is convenient for plugging and unplugging.

[0023] like Figure 1-4 As shown, in one embodiment of the utility model, the anti-pull-off charging plug of the utility model includes a tube body 1, a locking nut 2, a locking inner tube 3, an outer tube 4, a rear spindle 5 and a bell mouth 6. The interior of the tube body 1 is hollow, and the tube body 1 is made of plastic. The bell mouth 6 and the rear spindle 5 are both arranged in the tube body 1, and the first end of the rear spindle 5 passes through the tube body 1 and extends to the outside of the tube body 1. The second end of the rear spindle 5 is clamped in the first end of the bell mouth 6, and the second end of the bell mouth 6 is located in the tube body 1 and the bell mouth 6 is located in the tube body 1. The inner diameter of the second end of the bell mouth 6 is larger than the inner diameter of the first end. The outer tube 4 is sleeved on the tube body 1, the locking inner tube 3 is sleeved on the outer tube 4 and the tube body 1, the locking nut 2 is sleeved on the outer tube 4 and connected to the locking inner tube 3, and the inner side of the locking nut 2 is provided with a thread. When used specifically, the first end of the rear spindle 5 can be used to connect the wire, and the outer side of the second end of the rear spindle 5 can be provided with a raised portion 7 and the raised portion 7 is adapted to the inside of the tube body 1. When the first end of the bell mouth 6 is clamped with the second end of the rear spindle 5, Figure 1For example, the first end of the bell mouth 6 is specifically clamped on the left side of the protrusion 7, and the inner diameter of the second end of the bell mouth 6 is greater than the inner diameter of the first end, that is, the second end of the bell mouth 6 is trumpet-shaped, the first end of the bell mouth 6 is tubular, and the second end of the bell mouth 6 is the end away from the rear spindle 5;

[0024] Please continue to refer to Figure 2 , a first protrusion 8 and a second protrusion 9 are respectively provided on the right middle and right sides of the tube body 1 of the utility model, the outer tube 4 is sleeved on the left side of the first protrusion 8, and the right end of the locking tooth inner tube 3 is sleeved between the first protrusion 8 and the second protrusion 9. The left middle part of the locking tooth inner tube 3 is sleeved on the outer tube 4 to the left and is connected to the locking tooth nut 2. A limit block 10 is also provided on the side of the locking tooth inner tube 3 close to the outer tube 4. The limit block 10 is sleeved on the outer tube 4 and is located in the locking tooth nut 2. The locking tooth nut 2 is used to prevent pulling off with other socket structures. The limit part is used to limit the position to prevent the socket from being connected too deeply with the utility model. A plurality of knurled grooves 11 are provided on the outside of the new locking tooth nut 2 itself, and the knurled grooves 11 are meshed. The outer tube 4 of the utility model can be understood as the positive electrode, the rear spindle 5 is the negative electrode, and the tube body 1 is made of plastic material to play an isolation role.

[0025] This embodiment does not impose any formal restrictions on the shape, material, structure, etc. of the utility model. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the utility model are within the protection scope of the technical solution of the utility model.

Claims

1. Anti-pull-off charging plug, characterized by: It includes a tube body, a locking nut, a locking inner tube, an outer tube, a rear spindle and a bell mouth. The interior of the tube body is hollow. The bell mouth and the rear spindle are both arranged in the tube body, and the first end of the rear spindle passes through the tube body and extends to the outside of the tube body. The second end of the rear spindle is clamped in the first end of the bell mouth. The second end of the bell mouth is located in the tube body and the inner diameter of the second end of the bell mouth is larger than the inner diameter of the first end. The outer tube is sleeved on the tube body, the locking inner tube is sleeved on the outer tube and the tube body, the locking nut is sleeved on the outer tube and connected to the locking inner tube, and a thread is provided on the inner side of the locking nut.

2. The anti-pull-off charging plug according to claim 1, characterized in that: The tube body is made of plastic.

3. The anti-pull-off charging plug according to claim 1, characterized in that: A plurality of knurled grooves are arranged on the outer side of the locking nut.

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