Portable photovoltaic cable connection MC4 plug

Abstract

The utility model discloses a portable photovoltaic cable connection MC4 plug, which comprises a male head main body and a female head main body which are plugged together, the other end of the male head main body and the other end of the female head main body are respectively provided with a threaded grasping column, and integrated inner cores are arranged in the male head main body and the female head main body; the cylindrical sheath is movably arranged on the surface of the female head main body in a sleeving manner, and a clamping limiting structure is further arranged between the cylindrical sheath and the female head main body; according to the utility model, the portable photovoltaic cable connection MC plug in the prior art is improved and optimized, and the cylindrical sheath, the clamping limiting structure and the auxiliary sealing structure are additionally arranged on the basis of the original structure, so that after the male head main body and the female head main body are normally plugged, the male head main body and the female head main body can slide down through the cylindrical sheath; the L-shaped clamping pin and the U-shaped clamping seat are completely covered on the inner side for effective protection, so that the L-shaped clamping pin and the U-shaped clamping seat are prevented from being damaged due to collision of external foreign matters, and the plugging part of the male head main body and the female head main body can be protected.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic cable connection plugs, and particularly relates to a portable photovoltaic cable connection MC4 plug. Background Art

[0002] A portable photovoltaic cable connection MC4 plug is a photovoltaic cable connection plug that is small in size and convenient to carry and use. It mainly consists of a male head body, a female head body, a tightening nut, and inner cores arranged in the male and female heads. As disclosed in the existing patent with the publication number "CN221574422U", namely "A multifunctional MC4 plug for photovoltaic modules, including a female plug and a male plug, one end of the female plug is connected with the male plug, both ends of the male plug and the female plug are connected with threaded posts, the surface of the threaded posts is connected with threaded nuts, and the male plug is connected with an inner core near the female plug", it can be seen that what is described in this application is exactly a common photovoltaic cable connection MC4 plug. When in use, the photovoltaic cables to be connected are respectively inserted into the male and female heads, and then the tightening nut is tightened to realize the connection between the photovoltaic cable and the inner core. Finally, the male and female heads are plugged together to complete the quick connection of the two photovoltaic cables;

[0003] In the actual use of this kind of photovoltaic cable connection MC4 plug in the existing technology, the male head body and the female head body are clamped through an L-shaped leg. However, after the two are clamped, the L-shaped leg and the U-shaped socket are directly exposed outside, and are easily damaged due to accidental bumps by foreign objects in the outside world, thereby affecting the connection stability of the entire MC4 plug. Sometimes, even the situation where the L-shaped leg breaks and separates from the U-shaped socket occurs, resulting in the separation of the male head body and the female head body, which has disadvantages. For this reason, the present utility model proposes a portable photovoltaic cable connection MC4 plug. Summary of the Utility Model

[0004] The purpose of the present utility model is to provide a portable photovoltaic cable connection MC4 plug to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present utility model provides the following technical solution: A portable photovoltaic cable connection MC plug, including

[0006] A male head body and a female head body plugged together, and threaded tightening posts are arranged at the other ends of the male head body and the female head body. Integral inner cores are arranged inside the male head body and the female head body. A tightening nut is sleeved and installed on the surface of the threaded tightening post. L-shaped legs and U-shaped sockets are respectively arranged at the plugging ends of the male head body and the female head body, and the L-shaped legs and the U-shaped sockets are clamped;

[0007] And a cylindrical sheath movably sleeved on the surface of the female head body, and a clamping and limiting structure is also arranged between the cylindrical sheath and the female head body.

[0008] Preferably, the clamping and limiting structure includes two inner grooves formed inside the top end of the cylindrical sheath, springs and telescopic beads arranged in the inner grooves. Two annular clamping grooves corresponding to the telescopic beads are formed on the surface of the female head body. The telescopic beads are movably installed in the inner grooves through the springs, and the ends of the telescopic beads pop out into one of the annular clamping grooves.

[0009] Preferably, one end of the spring is fixedly connected to the telescopic bead, and the other end of the spring is fixed on the inner wall of the inner groove.

[0010] Preferably, two pop-up holes communicating with the inner grooves are formed on the inner wall of the top end of the cylindrical sheath, and the pop-up holes are adapted to the ends of the telescopic beads.

[0011] It further includes an auxiliary sealing structure, and the auxiliary sealing structure is arranged between the cylindrical sheath and the male head body.

[0012] Preferably, the auxiliary sealing structure includes an annular rubber ring embedded and installed on the inner wall of the bottom end of the cylindrical sheath. Two annular sealing grooves are formed on the inner wall of the annular rubber ring. Two annular ridges corresponding to the annular sealing grooves are arranged on the surface of the male head body.

[0013] Preferably, an annular embedding groove is formed on the inner wall of the bottom end of the cylindrical sheath, and the annular rubber ring is installed in the embedding groove.

[0014] Preferably, two integral umbrella-shaped clamping heads are arranged on the surface of the annular rubber ring. Two clamping holes corresponding to the umbrella-shaped clamping heads are formed on the bottom surface of the cylindrical sheath. The ends of the umbrella-shaped clamping heads penetrate through the clamping holes to the outer surface of the cylindrical sheath.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: By improving and optimizing the portable photovoltaic cable connection MC plug in the prior art, a cylindrical sheath, a clamping and limiting structure and an auxiliary sealing structure are added on the basis of its original structure. After the male head body and the female head body are normally inserted, the L-shaped clamping feet and the U-shaped clamping seats can be completely covered inside for effective protection by the downward sliding of the cylindrical sheath, avoiding damage to the L-shaped clamping feet and the U-shaped clamping seats due to being knocked by foreign objects outside, and can also protect the insertion part of the male head body and the female head body, ensuring the overall connection stability of the portable photovoltaic cable connection MC plug. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a structural schematic diagram of the present utility model;

[0017] Figure 2 is a sectional view of the connection part between the cylindrical sheath and the female head body of the present utility model;

[0018] Figure 3 For the present utility model Figure 2 is a partial enlarged view of area A in the present utility model;

[0019] Figure 4 For the present utility model Figure 2 is a partial enlarged view of area B in the present utility model;

[0020] In the figure: 1, male head main body; 11, L-shaped clamping foot; 12, annular rib; 2, female head main body; 21, U-shaped clamping seat; 22, annular clamping groove; 3, tightening nut; 4, threaded clamping column; 5, cylindrical sheath; 51, annular rubber ring; 52, annular sealing groove; 53, inner groove; 54, spring; 55, telescopic clamping bead; 56, umbrella-shaped clamping head; 57, clamping hole. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0022] Embodiment

[0023] Please refer to Figures 1 to 4 , which is an embodiment of the present utility model. The embodiment provides a technical solution: a portable photovoltaic cable connecting MC4 plug, including

[0024] a male head main body 1 and a female head main body 2 plugged together, and threaded clamping columns 4 are provided at the other ends of the male head main body 1 and the female head main body 2. The threaded clamping column 4 is a hollow threaded tube with an opening at one end, and will bite the inserted photovoltaic cable as the tightening nut 3 is tightened later. Integral inner cores are provided inside the male head main body 1 and the female head main body 2. A tightening nut 3 is sleeved on the surface of the threaded clamping column 4. When connecting photovoltaic cables later, two photovoltaic cables can be respectively inserted into the threaded clamping columns 4 at the ends of the male head main body 1 and the female head main body 2, so that the photovoltaic cables are in contact with the inner cores inside. Then, the tightening nut 3 is tightened so that the threaded clamping column 4 locks the photovoltaic cables. Finally, the male head main body 1 and the female head main body 2 are plugged together conventionally. The structural principles of this part are all technologies that have been fully disclosed in the prior art and will not be elaborated here. After plugging, the L-shaped clamping foot 11 and the U-shaped clamping seat 21 will be clamped together. The plugging ends of the male head main body 1 and the female head main body 2 are respectively provided with an L-shaped clamping foot 11 and a U-shaped clamping seat 21, and the L-shaped clamping foot 11 and the U-shaped clamping seat 21 are clamped. The L-shaped clamping foot 11 and the U-shaped clamping seat 21 are both made of polyethylene material with a certain elasticity, and the two can be smoothly clamped;

[0025] And a cylindrical sheath 5 is movably sleeved on the surface of the female head body 2, and a clamping and limiting structure is further provided between the cylindrical sheath 5 and the female head body 2. After the male head body 1 and the female head body 2 are successfully inserted, the cylindrical sheath 5 can be slid down, so that the cylindrical sheath 5 can cover the L-shaped clamping feet 11 and the U-shaped clamping seats 21 inside for protection, playing a role in protection and anti-disconnection, and can also protect the insertion part of the male head body 1 and the female head body 2 to ensure the connection stability.

[0026] Among them, the clamping and limiting structure includes two inner grooves 53 opened inside the top end of the cylindrical sheath 5, springs 54 and telescopic clamping beads 55 arranged in the inner grooves 53. Two annular clamping grooves 22 corresponding to the telescopic clamping beads 55 are opened on the surface of the female head body 2. The telescopic clamping beads 55 are movably installed in the inner grooves 53 through the springs 54, and the end part of the telescopic clamping bead 55 pops out into one of the annular clamping grooves 22 to realize the clamping and limiting of the cylindrical sheath 5. When the cylindrical sheath 5 slides down later, the end part of the telescopic clamping bead 55 will be first squeezed into the inner groove 53 to realize the smooth sliding of the cylindrical sheath 5. When the cylindrical sheath 5 slides down to cover the L-shaped clamping feet 11 and the U-shaped clamping seats 21 inside, the end part of the telescopic clamping bead 55 will pop out into the other annular clamping groove 22 under the push of the spring 54 to realize the clamping and limiting of the cylindrical sheath 5 at this time, ensuring that the cylindrical sheath 5 can continuously and stably protect the L-shaped clamping feet 11 and the U-shaped clamping seats 21 during daily use.

[0027] Among them, one end of the spring 54 is fixedly connected to the telescopic clamping bead 55, and the other end of the spring 54 is fixed on the inner wall of the inner groove 53.

[0028] Among them, two pop-up holes communicating with the inner groove 53 are opened on the inner wall of the top end of the cylindrical sheath 5, and the pop-up holes are adapted to the end part of the telescopic clamping bead 55 to facilitate the smooth pop-up of the end part of the telescopic clamping bead 55.

[0029] An auxiliary sealing structure is also included. The auxiliary sealing structure is arranged between the cylindrical sheath 5 and the male head body 1. The auxiliary sealing structure includes an annular rubber ring 51 embedded and installed on the inner wall of the bottom end of the cylindrical sheath 5, and two annular sealing grooves 52 are opened on the inner wall of the annular rubber ring 51. Two annular protrusions 12 corresponding to the annular sealing grooves 52 are arranged on the surface of the male head body 1. When the cylindrical sheath 5 slides down to cover the L-shaped clamping feet 11 and the U-shaped clamping seats 21 inside later, the bottom end of the cylindrical sheath 5 will also be sleeved on the surface of the male head body 1, and the annular protrusions 12 will be squeezed into the annular sealing grooves 52, so as to play an auxiliary sealing effect between the cylindrical sheath 5 and the male head body 1 and further strengthen the sealing performance of the entire MC4 plug.

[0030] Among them, an annular groove is formed on the inner wall of the bottom end of the cylindrical sheath 5, and the annular rubber ring 51 is installed in the groove. Two integral umbrella-shaped clamping heads 56 are arranged on the surface of the annular rubber ring 51, both of which are made of rubber material and will undergo elastic deformation when being extruded. Two clamping holes 57 corresponding to the umbrella-shaped clamping heads 56 are formed on the surface of the bottom end of the cylindrical sheath 5. The end of the umbrella-shaped clamping head 56 penetrates through the clamping hole 57 to the outer surface of the cylindrical sheath 5, realizing the stable installation of the annular rubber ring 51.

[0031] Although the embodiments of the present invention have been shown and described (see the above detailed description), those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Portable photovoltaic cable connection MC4 plug, characterized in that: Comprising A male head body (1) and a female head body (2) plugged together, and threaded clamping columns (4) are provided at the other ends of the male head body (1) and the female head body (2). An integrated inner core is provided inside both the male head body (1) and the female head body (2). A tightening nut (3) is sleeved on the surface of the threaded clamping column (4). L-shaped clamping feet (11) and U-shaped clamping seats (21) are respectively provided at the plugging ends of the male head body (1) and the female head body (2), and the L-shaped clamping feet (11) and the U-shaped clamping seats (21) are clamped together; And a cylindrical sheath (5) movably sleeved on the surface of the female head body (2), and a clamping and limiting structure is further provided between the cylindrical sheath (5) and the female head body (2).

2. The portable photovoltaic cable connecting MC4 plug according to claim 1, characterized in that: The clamping and limiting structure includes two inner grooves (53) opened inside the top end of the cylindrical sheath (5), a spring (54) and a telescopic clamping bead (55) arranged in the inner groove (53). Two annular clamping grooves (22) corresponding to the telescopic clamping bead (55) are opened on the surface of the female head body (2). The telescopic clamping bead (55) is movably installed in the inner groove (53) through the spring (54), and the end of the telescopic clamping bead (55) pops out into one of the annular clamping grooves (22).

3. The portable photovoltaic cable connecting MC4 plug according to claim 2, wherein: One end of the spring (54) is fixedly connected to the telescopic clamping bead (55), and the other end of the spring (54) is fixed on the inner wall of the inner groove (53).

4. The portable photovoltaic cable connecting MC4 plug according to claim 2, wherein: Two pop-up holes communicating with the inner groove (53) are opened on the inner wall of the top end of the cylindrical sheath (5), and the pop-up holes are adapted to the end of the telescopic clamping bead (55).

5. The portable photovoltaic cable connecting MC4 plug according to claim 1, characterized in that: It further includes an auxiliary sealing structure, and the auxiliary sealing structure is arranged between the cylindrical sheath (5) and the male head body (1).

6. The portable photovoltaic cable connecting MC4 plug according to claim 5, wherein: The auxiliary sealing structure includes an annular rubber ring (51) embedded and installed on the inner wall of the bottom end of the cylindrical sheath (5), and two annular sealing grooves (52) are opened on the inner wall of the annular rubber ring (51). Two annular ridges (12) corresponding to the annular sealing grooves (52) are provided on the surface of the male head body (1).

7. The portable photovoltaic cable connecting MC4 plug according to claim 6, characterized in that: An annular embedding groove is opened on the inner wall of the bottom end of the cylindrical sheath (5), and the annular rubber ring (51) is installed in the embedding groove.

8. The portable photovoltaic cable connecting MC4 plug according to claim 7, characterized in that: Two integral umbrella-shaped clamping heads (56) are provided on the surface of the annular rubber ring (51). Two clamping holes (57) corresponding to the umbrella-shaped clamping heads (56) are opened on the bottom surface of the cylindrical sheath (5). The end of the umbrella-shaped clamping head (56) penetrates through the clamping hole (57) to the outer surface of the cylindrical sheath (5).

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