Waterproof wiring terminal of connecting line

Abstract

The utility model discloses a waterproof wiring terminal for a connecting line, which comprises a male terminal and a female terminal, the male terminal comprises a first shell and a metal insertion rod, one end of the metal insertion rod is embedded in the first shell, one side of the first shell is provided with a first lead connected with the metal insertion rod, and the female terminal comprises a second shell and a conductive insertion cylinder. The conductive insertion cylinder is located in the second shell, a second wire connected with the conductive insertion cylinder is arranged on one side of the second shell, the first shell and the second shell are both of a cylinder structure, an annular groove is formed in the outer side of the second shell, and a sealing ring is arranged in the annular groove. When the metal insertion rod is inserted into the conductive insertion cylinder, the push rod pushes the arc-shaped strip to slide and the sealing ring expands outwards by means of the pushing force on the pushing piece, so that the second shell can be matched with the first shell for sealing when the second shell is inserted into the sinking groove, and the waterproof effect can be achieved.

Description

Technical Field

[0001] The utility model discloses a waterproof connection terminal for a connecting wire, belonging to the technical field of electronic components. Background Art

[0002] Terminal blocks are an accessory product used to achieve electrical connections, and are classified as connectors in the industry. With the increasing degree of industrial automation and the increasingly stringent and precise requirements for industrial control, the use of terminal blocks has gradually increased. With the development of the electronics industry, the scope of use of terminal blocks has become increasingly broad, and there are more and more types of terminal blocks. Currently, most terminal blocks use a plug-in structure. Although this direct connection method has a simple structure, it does not have a waterproof effect. Once water stains enter the plug-in structure, it will affect the stability of data transmission. Utility Model Content

[0003] The purpose of the utility model is to solve the problems in the prior art and provide a waterproof connection terminal for connecting wires.

[0004] The utility model achieves the above-mentioned purpose through the following technical scheme: a waterproof terminal for connecting wires, including a male terminal and a female terminal, the male terminal including a first shell and a metal plug rod, one end of the metal plug rod is embedded in the first shell, a first wire connected to the metal plug rod is arranged on one side of the first shell, the female terminal includes a second shell and a conductive plug barrel, the conductive plug barrel is located in the second shell, a second wire connected to the conductive plug barrel is arranged on one side of the second shell, the first shell and the second shell are both cylindrical structures, an annular groove is arranged on the outer side of the second shell, a sealing ring is arranged in the annular groove, the outer diameter of the sealing ring is less than or equal to the outer diameter of the second shell, a pushing member is also arranged in the annular groove, the pushing member will generate an outward thrust on the sealing ring after the metal plug rod is inserted into the conductive plug barrel, and the first shell has a recessed groove matching the second shell.

[0005] Preferably, the pushing member includes a plurality of arc-shaped bars and a push rod distributed in an array, the push rod and the arc-shaped bar are integrally formed, and one end of the push rod passes through the second shell and the conductive insert, and the sealing ring is arranged around the outside of the plurality of arc-shaped bars.

[0006] Preferably, one end of the push rod away from the arc strip is in a hemispherical structure, and the length of the push rod exposed in the conductive insert is smaller than the radius of the hemispherical structure of the push rod.

[0007] Preferably, a fixing sleeve is provided on the outer side of the second shell, a protective sleeve is slidably provided on one end of the fixing sleeve, and the protective sleeve covers the outer side of the sealing ring.

[0008] Preferably, an installation cavity is provided in the fixing sleeve, a spring is provided in the installation cavity, and one end of the spring is in contact with the protective sleeve.

[0009] Preferably, a plurality of positioning pins are arranged at one end of the fixing sleeve close to the protective sleeve, a sliding groove for the positioning pins to slide is arranged at one end of the protective sleeve, and a threaded hole is arranged at one end of the positioning pins.

[0010] Preferably, the fixing sleeve is threadedly connected to the second shell, and a knob portion with a hexagonal structure is provided on the outer side of the fixing sleeve.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] By setting a first shell, a second shell, a metal plug rod, a sealing ring and a pushing member, the metal plug rod is inserted into the conductive plug tube, and the pushing force on the pushing member is used to make the push rod push the arc strip to slide and make the sealing ring expand outward, so that the second shell can be inserted into the sink groove and can be sealed with the first shell, thereby achieving a waterproof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of a waterproof terminal block for connecting wires according to the utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the female terminal of the utility model;

[0015] Figure 3 It is a schematic diagram of the structure of the conductive insert, the pusher and the sealing ring in the utility model;

[0016] Figure numerals: 1. first conductor; 2. first shell; 3. metal plug rod; 4. sink groove; 5. protective cover; 6. slide groove; 7. second shell; 8. fixing sleeve; 9. knob part; 10. second conductor; 11. installation cavity; 12. push rod; 13. positioning pin; 14. sealing ring; 15. conductive plug tube; 16. pushing member; 17. threaded hole; 18. spring; 19. arc strip. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in 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 in 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.

[0018] like Figure 1-Figure 3As shown, a waterproof terminal for connecting wires includes a male terminal and a female terminal. The male terminal includes a first shell 2 and a metal plug 3. One end of the metal plug 3 is embedded in the first shell 2. A first wire 1 connected to the metal plug 3 is arranged on one side of the first shell 2. The female terminal includes a second shell 7 and a conductive plug 15. The conductive plug 15 is located in the second shell 7. A second wire 10 connected to the conductive plug 15 is arranged on one side of the second shell 7. Both the first shell 2 and the second shell 7 are cylindrical structures. An annular groove is arranged on the outer side of the second shell 7. A sealing ring 14 is arranged in the annular groove. The outer diameter of the sealing ring 14 is less than or equal to the outer diameter of the second shell 7. A pushing member 16 is also arranged in the annular groove. After the metal plug 3 is inserted into the conductive plug 15, the pushing member 16 will generate an outward thrust on the sealing ring 14. The first shell 2 has a sink 4 that cooperates with the second shell 7.

[0019] The push member 16 includes a plurality of arc strips 19 and a push rod 12 distributed in an array. The push rod 12 is integrally formed with the arc strip 19, and one end of the push rod 12 passes through the second housing 7 and the conductive insert 15. The sealing ring 14 is arranged around the outside of the plurality of arc strips 19. The end of the push rod 12 away from the arc strip 19 is in a hemispherical structure, and the length of the push rod 12 exposed in the conductive insert 15 is less than the radius of the hemispherical structure of the push rod 12. The plurality of arc strips 19 are assembled in the annular groove to form a complete circle. The sealing ring 14 is sleeved on the outside of the arc strip 19 and can apply a tightening force to the arc strip 19, so that one end of the push rod 12 Exposed on the inner side of the conductive plug 15, when the metal plug 3 is inserted into the inner side of the conductive plug 15, the metal plug 3 generates a thrust on the push rod 12, so that the push rod 12 pushes the arc strip 19 along its length direction, and thereby generates an outward thrust on the sealing ring 14, so that it can seal between the first shell 2 and the second shell 7, effectively preventing water stains from entering between the metal plug 3 and the conductive plug 15, so as to achieve a waterproof effect, and when the outer diameter of the sealing ring 14 in a normal state is less than or equal to the outer diameter of the second shell 7, the second shell 7 can be inserted into the sink 4. Reduce the wear on the sealing ring 14.

[0020] A fixing sleeve 8 is arranged on the outer side of the second shell 7, and a protective sleeve 5 is slidably arranged on one end of the fixing sleeve 8. The protective sleeve 5 covers the outer side of the sealing ring 14. An installation cavity 11 is arranged in the fixing sleeve 8, and a spring 18 is arranged in the installation cavity 11. One end of the spring 18 is in contact with the protective sleeve 5, and the protective sleeve 5 is kept in sliding connection with one end of the fixing sleeve 8. The force applied by the spring 18 to the protective sleeve 5 can keep the protective sleeve 5 covering the outer side of the sealing ring 14, so that the sealing ring 14 will not be damaged due to being directly exposed to the outside.

[0021] A plurality of positioning pins 13 are provided at one end of the fixing sleeve 8 close to the protective sleeve 5, a slide groove 6 for the positioning pins 13 to slide is provided at one end of the protective sleeve 5, and a threaded hole 17 is provided at one end of the positioning pin 13. Under the limiting action of the positioning pin 13, the protective sleeve 5 will not fall off from the second shell 7 when it is subjected to the elastic force of the spring 18, and the threaded hole 17 can facilitate the disassembly and assembly of the protective sleeve 5 and the fixing sleeve 8.

[0022] The fixing sleeve 8 is threadedly connected to the second shell 7 so that the two can maintain a fixed connection, and a hexagonal knob portion 9 is provided on the outer side of the fixing sleeve 8. By rotating the knob portion 9, the spring 18, the protective sleeve 5 and the sealing ring 14 can be easily disassembled and assembled, and the overall structural design is reasonable.

[0023] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0024] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A waterproof terminal for connecting wires, comprising a male terminal and a female terminal, characterized in that: The male terminal comprises a first housing (2) and a metal plug (3), one end of the metal plug (3) being embedded in the first housing (2), and a first wire (1) connected to the metal plug (3) being provided on one side of the first housing (2); the female terminal comprises a second housing (7) and a conductive plug (15), the conductive plug (15) being located in the second housing (7), and a second wire (10) connected to the conductive plug (15) being provided on one side of the second housing (7); the first housing (2) and The second shell (7) is a cylindrical structure. An annular groove is arranged on the outer side of the second shell (7). A sealing ring (14) is arranged in the annular groove. The outer diameter of the sealing ring (14) is less than or equal to the outer diameter of the second shell (7). A pushing member (16) is also arranged in the annular groove. After the metal plug rod (3) is inserted into the conductive plug tube (15), the pushing member (16) will generate an outward thrust on the sealing ring (14). The first shell (2) has a recessed groove (4) that matches the second shell (7).

2. A waterproof connection terminal for connecting wires according to claim 1, characterized in that: The pushing member (16) comprises a plurality of arc-shaped strips (19) distributed in an array and a push rod (12), wherein the push rod (12) and the arc-shaped strip (19) are integrally formed, and one end of the push rod (12) passes through the second shell (7) and the conductive plug (15), and the sealing ring (14) is arranged around the outer side of the plurality of arc-shaped strips (19).

3. A waterproof connection terminal for connecting wires according to claim 2, characterized in that: One end of the push rod (12) away from the arc strip (19) is in a hemispherical structure, and the length of the push rod (12) exposed in the conductive insert (15) is smaller than the radius of the hemispherical structure of the push rod (12).

4. A waterproof connection terminal for connecting wires according to claim 1, characterized in that: A fixing sleeve (8) is arranged on the outside of the second shell (7), a protective sleeve (5) is slidably arranged on one end of the fixing sleeve (8), and the protective sleeve (5) covers the outside of the sealing ring (14).

5. A waterproof connection terminal for connecting wires according to claim 4, characterized in that: The fixing sleeve (8) is provided with a mounting cavity (11), the mounting cavity (11) is provided with a spring (18), and one end of the spring (18) is in contact with the protective sleeve (5).

6. A waterproof connection terminal for connecting wires according to claim 4, characterized in that: A plurality of positioning pins (13) are arranged at one end of the fixing sleeve (8) close to the protective sleeve (5), a sliding groove (6) for the positioning pins (13) to slide is arranged at one end of the protective sleeve (5), and a threaded hole (17) is arranged at one end of the positioning pins (13).

7. A waterproof connection terminal for connecting wires according to claim 4, characterized in that: The fixing sleeve (8) is threadedly connected to the second housing (7), and a knob portion (9) with a hexagonal structure is provided on the outer side of the fixing sleeve (8).

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