Anti-drop plug

Abstract

The utility model belongs to the technical field of plugs, and discloses an anti-drop plug, which comprises a shell provided with three shell jacks, and a clamping piece positioning part arranged in the shell; the inner shell is arranged in the outer shell, a clamping piece groove is formed in the head of the inner shell, and a spring cavity is formed in the side face, close to the rod piece sliding groove, of the inner shell; the anti-falling rod piece is inserted into one side of the inner cavity of the outer shell from the rear end, and a spring is connected between the anti-falling rod piece and the inner shell; and the anti-falling clamping piece is located in a cavity formed by the inner wall of the shell and the clamping piece groove, the anti-falling clamping piece is obliquely arranged from back to front, and a through groove is formed in the anti-falling clamping piece. The combined assembly design is adopted, the plug injection molding structure is divided into the inner part and the outer part, the anti-falling structure is arranged between the inner shell and the outer shell, the anti-falling structure can be automatically locked, the structure is ingenious, the anti-falling effect is stable, and the overall practicability is high.

Description

Technical Field

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

[0002] Plugs are usually used in conjunction with sockets. Household AC power plugs and sockets have a male connector that protrudes in the shape of a rod or a copper plate, which is physically inserted into a female connector-type power socket with a slot or hole. The most common one is a three-wire plug. Of course, there are also some equipment or device interfaces that are connected to the municipal power grid through a plug connection line.

[0003] In order to ensure the stable operation of equipment or devices, it is often necessary to make an anti-dropping design for the interface. The existing method is often to make anti-dropping improvements on the socket, but some sockets have a simpler structure and it is difficult to make an anti-dropping design, such as an electric bicycle interface socket, a computer host interface socket, etc. Therefore, it is urgent to provide an anti-dropping plug to solve the above problem. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides an anti-dropping plug to solve the problem that the existing method proposed in the above background technology is often to improve the anti-dropping on the socket, but some sockets have simple structures and it is difficult to make an anti-dropping design.

[0005] In order to achieve the above object, the technical solution of the utility model is as follows:

[0006] An anti-drop plug, comprising:

[0007] A shell with three shell sockets, a rod socket is provided on the head end surface of the shell, a rod slot is provided on the side of the tail end of the shell, and a card positioning part is also provided inside the shell;

[0008] An inner shell, the inner shell is arranged inside the outer shell, an inner shell insertion cavity is penetrated in the inner shell, a clamping groove is arranged at the head of the inner shell, a spring cavity is opened on the side of the inner shell close to the rod sliding groove, and a stopper is arranged at the tail end of the spring cavity;

[0009] An anti-slip rod, the anti-slip rod is inserted into one side of the inner cavity of the shell from the rear end, a buckle and pull portion is provided at the tail of the anti-slip rod, a plug is provided at the head of the anti-slip rod, a slot is provided near the head of the anti-slip rod, and a spring is connected between the anti-slip rod and the inner shell;

[0010] An anti-dropout card is located in a cavity formed by the inner wall of the shell and the card groove. The anti-dropout card is tilted from back to front. The long end of the anti-dropout card is stuck in the card groove. A through groove is provided on the anti-dropout card.

[0011] As a further improvement to the present invention, the anti-dropping clamp is L-shaped, and the short end of the anti-dropping clamp is clamped between the clamp positioning portion and the inner wall of the shell.

[0012] As a further improvement to the utility model, the spring is located in a cavity formed by the spring cavity and the spring groove.

[0013] As a further improvement to the present invention, a spring mounting portion is provided at the front end of the spring groove, and a raised edge is provided on the spring mounting portion.

[0014] As a further improvement of the present invention, the outer wall of the inner shell is provided with an outer wall positioning ridge, and the other side of the inner shell is provided with a side positioning portion.

[0015] As a further improvement to the present invention, a positioning bayonet is provided at the rear of the shell.

[0016] As a further improvement to the present invention, a plurality of positioning protrusions are further provided at the rear of the shell.

[0017] Through the above technical solution, the beneficial effects of the technical solution of the utility model are:

[0018] The utility model adopts a combined assembly design, divides the injection molding structure of the plug into two parts, an inner part and an outer part, and provides an anti-dropping structure between the inner and outer shells. The anti-dropping structure can be automatically locked and can also be manually unlocked when pulled out. It can be operated with one hand, which is simple and convenient. The anti-dropping design of the plug has an ingenious structure and a stable anti-dropping effect, which ensures the connection effect of equipment and devices and has strong overall practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0021] Figure 2 It is a schematic diagram of a partial explosion structure of the utility model.

[0022] Figure 3 It is a schematic diagram of the top cross-sectional structure of the utility model.

[0023] Figure 4 It is a three-dimensional schematic diagram of the shell in the utility model.

[0024] Figure 5 It is a three-dimensional schematic diagram of the anti-dropping rod in the utility model.

[0025] Explanation of the symbols in the schematic diagram:

[0026] 1. Shell; 11. Shell socket; 12. Rod socket; 13. Positioning socket; 14. Positioning protrusion; 15. Rod slide groove; 16. Card positioning part; 2. Inner shell; 21. Inner shell insertion cavity; 22. Card groove; 23. Spring cavity; 24. Stopper; 25. Outer wall positioning ridge; 26. Side positioning part; 3. Anti-slip rod; 31. Buckle and pull part; 32. Plug; 33. Card slot; 34. Spring mounting part; 35. Spring slot; 4. Spring; 5. Anti-slip card; 51. Through slot. DETAILED DESCRIPTION

[0027] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-5 , the utility model provides the following embodiments:

[0029] A non-dropping plug comprises an outer shell 1, an inner shell 2, an anti-dropping rod 3, a spring 4, and an anti-dropping clamp 5, wherein the outer shell 1 is provided with three outer shell sockets 11 for the conductive sheet on the socket to pass through, the head end surface of the outer shell 1 is provided with a rod socket 12, the side surface of the rear end of the outer shell 1 is provided with a rod slot 15, the inner part of the outer shell 1 is further provided with a clamp positioning portion 16, the clamp positioning portion 16 and the outer shell 1 are an integral structure, and the outer shell 1 is provided with an inner cavity opening toward the rear for assembling and accommodating the remaining components of the plug.

[0030] The inner shell 2 is arranged in the inner cavity of the outer shell 1, and an inner shell insertion cavity 21 is penetrated in the inner shell 2. The inner shell insertion cavity 21 is arranged along the head and tail of the inner shell 2 to install the conductive metal sheet. The head of the inner shell 2 is provided with a clamping groove 22. The side of the inner shell 2 close to the rod slide groove 15 is provided with a spring cavity 23. The tail end of the spring cavity 23 is provided with a stopper 24. Figure 2 The stopper 24 is used to accommodate the spring 4, and one end of the spring 4 abuts against the stopper 24.

[0031] The anti-drop rod 3 is inserted into one side of the inner cavity of the housing 1 from the rear end, and a buckle pull portion 31 is provided at the tail of the anti-drop rod 3. After the anti-drop rod 3 is assembled, the buckle pull portion 31 is located in the rod slide groove 15, and a plug 32 is provided at the head of the anti-drop rod 3. The plug 32 is located in the rod socket 12, and the end surfaces of the two are flush. Figure 1 shown.

[0032] The anti-slip rod 3 is also integrally formed by injection molding. A card slot 33 is provided near the head of the anti-slip rod 3. The card slot 33 is an open slot-shaped structure. A spring 4 is connected between the anti-slip rod 3 and the inner shell 2. The anti-slip rod 3 can slide back and forth in the side cavity formed by the inner wall of the outer shell 1 and the outer wall of the inner shell 2. The spring 4 plays a reset role.

[0033] The anti-dropping card 5 is an elastic metal piece, and the anti-dropping card 5 is located in the cavity formed by the inner wall of the housing 1 and the card groove 22. Figure 2 , Figure 3 and Figure 4 The anti-dropping card 5 is L-shaped, the long end of the anti-dropping card 5 is tilted from the back to the front, the short end of the anti-dropping card 5 is clamped between the card positioning portion 16 and the inner wall of the card groove 22, the long end of the anti-dropping card 5 is clamped in the card slot 33, and a through slot 51 is opened on the anti-dropping card 5. Figure 3 When in the locked state, the inclined through slot 51 has a short cross-section, which can clamp the conductive sheet passing through and prevent it from being easily pulled out. Only by pulling the rear buckle 31 can the long end of the anti-dropping card 5 become horizontal, and the side wall of the through slot 51 loses its pressure on the conductive sheet, thereby facilitating its removal.

[0034] As another preferred solution of the utility model, the spring 4 is located in the cavity formed by the spring cavity 23 and the spring groove 35, which facilitates the installation of the spring 4 and does not affect the deformation of the spring 4, and can also keep the spring 4 in a straight state.

[0035] As another preferred solution of the utility model, a spring mounting portion 34 is provided at the front end of the spring groove 35 , and a raised edge is provided on the spring mounting portion 34 , one end of the spring 4 abuts against the stopper 24 , and the other end of the spring 4 is sleeved on the raised edge of the spring mounting portion 34 .

[0036] As another preferred embodiment of the present invention, the outer wall of the inner shell 2 is provided with an outer wall positioning rib 25, and the other side of the inner shell 2 is provided with a side positioning portion 26 to strengthen the positioning between the inner shell 2 and the outer shell 1 and ensure the accuracy of the installation position of the inner shell 2.

[0037] As another preferred solution of the present invention, a positioning bayonet 13 is provided at the rear of the housing 1 to facilitate connection with the injection-molded housing with a connecting wire at the rear end.

[0038] As another preferred embodiment of the present invention, the rear portion of the housing 1 is further provided with a plurality of positioning protrusions 14, forming a Figure 1 The positioning area shown facilitates positioning with the injection molded housing.

[0039] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An anti-drop plug, characterized in that: include: A shell (1) having three shell sockets (11), a rod socket (12) being provided on the head end surface of the shell (1), a rod slide groove (15) being provided on the side surface of the tail end of the shell (1), and a card positioning portion (16) being provided inside the shell (1); An inner shell (2), the inner shell (2) being arranged inside the outer shell (1), the inner shell (2) having an inner shell insertion cavity (21) penetrating therein, the head of the inner shell (2) being provided with a clamping groove (22), the side of the inner shell (2) close to the rod sliding groove (15) being provided with a spring cavity (23), the tail end of the spring cavity (23) being provided with a stopper (24); An anti-slip rod (3), the anti-slip rod (3) is inserted from the rear end into one side of the inner cavity of the outer shell (1), a buckle (31) is provided at the tail of the anti-slip rod (3), a plug (32) is provided at the head of the anti-slip rod (3), a slot (33) is provided near the head of the anti-slip rod (3), and a spring (4) is connected between the anti-slip rod (3) and the inner shell (2); An anti-dropout clamp (5), the anti-dropout clamp (5) being located in a cavity formed by the inner wall of the housing (1) and the clamp groove (22), the anti-dropout clamp (5) being arranged to be inclined from the back to the front, the long end of the anti-dropout clamp (5) being clamped in the clamp groove (33), and a through groove (51) being provided on the anti-dropout clamp (5).

2. The anti-drop plug according to claim 1, characterized in that: The anti-dropping clamp (5) is L-shaped, and the short end of the anti-dropping clamp (5) is clamped between the clamp positioning portion (16) and the inner wall of the housing (1).

3. The anti-drop plug according to claim 1, characterized in that: The spring (4) is located in a cavity formed by the spring cavity (23) and the spring groove (35).

4. The anti-drop plug according to claim 3, characterized in that: A spring mounting portion (34) is provided at the front end of the spring groove (35), and a raised edge is provided on the spring mounting portion (34).

5. The anti-drop plug according to claim 1, characterized in that: The outer wall of the inner shell (2) is provided with an outer wall positioning ridge (25), and the other side of the inner shell (2) is provided with a side positioning portion (26).

6. The anti-drop plug according to claim 1, characterized in that: The rear part of the housing (1) is provided with a positioning bayonet (13).

7. The anti-drop plug according to claim 1, characterized in that: The rear part of the housing (1) is also provided with a plurality of positioning protrusions (14).

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