阅读说明：本技术 一种小型防爆电连接器 (Small-size explosion-proof electric connector ) 是由 鄢京 孙佳 唐鸿飞 于 2020-06-22 设计创作，主要内容包括：一种小型防爆电连接器,包括插头以及插座,插座包括插座壳、第一定位板、插座密封圈、插座线以及插座接线杆,使用时,将插座壳与插头壳相互对齐,使插座壳套在插头壳上,随着插座壳套在插头壳外表面的距离增加,螺纹与螺帽接触,之后旋转螺帽,使得插座壳与插头壳相互连接且插座壳套在插头壳外表面的距离继续增加,从而使第一空腔与第二空腔形成一个密封的环境,之后插座接线杆与插头接线杆接触形成通路,最终螺帽完全与螺纹配合,将插座与插头连接在一起,而由于插座接线杆与插头接线杆接触的过程中是在一个密封的环境中发生的,不与外界环境接触,所以避免发生爆炸,而且即使发生爆炸,也不会影响到外界环境。(A small-sized explosion-proof electric connector comprises a plug and a socket, wherein the socket comprises a socket shell, a first positioning plate, a socket sealing ring, a socket wire and a socket wiring rod, when the small-sized explosion-proof electric connector is used, the socket shell and the plug shell are aligned with each other, the socket shell is sleeved on the plug shell, along with the increase of the distance between the socket shell and the outer surface of the plug shell, threads are contacted with nuts, then the nuts are rotated, the socket shell and the plug shell are connected with each other, and the distance between the socket shell and the outer surface of the plug shell is continuously increased, so that a sealed environment is formed between a first cavity and a second cavity, then the socket wiring rod is contacted with the plug wiring rod to form a passage, finally the nuts are completely matched with the threads, the socket and the plug are connected together, and the wiring rod and the plug rod are in a sealed environment and are not contacted with the external environment in the contact process, so that explosion is avoided, and even if explosion occurs, the external environment is not influenced.)

1. The utility model provides a small-size explosion-proof electric connector, includes plug (1) and socket (2), its characterized in that: the socket (2) comprises a socket shell (3), a first positioning plate (4), a socket sealing ring (5), a socket wire (6) and a socket wiring rod (7), wherein the foremost end of the socket shell (3) is provided with a thread (8), a first cavity (9) is arranged in the socket shell (3), the front end of the first cavity (9) is opened, the rear end of the first cavity (9) is opened, the shape of the opened hole is consistent with the cross section of the socket wire (6), the socket wire (6) penetrates through the rear end opened hole of the first cavity (9) and is fixed in the first cavity (9), the first positioning plate (4) is arranged in the middle of the first cavity (9), the socket wiring rod (7) is fixed on the first positioning plate (4), one end of the socket wire rod (7) is connected with the socket wire (6), the other end of the socket wire rod extends out of the first positioning plate (4) and is shorter than the distance from the first positioning plate (4) to the front end of the socket shell (3), and the socket sealing ring (5) is fixed on the rear wall of the first cavity (9) and;

the plug (1) comprises a plug shell (10), a second positioning plate (11), a plug sealing ring (12), a plug wire (13) and a plug wiring rod (14), a second cavity (15) is arranged in the plug shell (10), the front end of the second cavity (15) is opened, the rear end of the second cavity (15) is provided with an opening, the shape of the opening is consistent with the cross section of the plug wire (13), the plug wire (13) penetrates through the opening at the rear end of the second cavity (15) and is fixed in the second cavity (15), the second positioning plate (11) is arranged in the middle of the second cavity (15), the plug wiring rod (14) is fixed on the second positioning plate (11), one end of the plug wiring rod (14) is connected with the plug wire (13), the other end extends out of the second positioning plate (11) and is shorter than the distance from the second positioning plate (11) to the front end of the plug shell (10), the plug sealing ring (12) is fixed on the side wall of the rear end of the second cavity (15), the outer wall of the plug shell (10) is provided with a limiting block (16), and the plug shell (10) is sleeved with a screw cap (17) through the limiting block (16).

2. A small explosion proof electrical connector as defined in claim 1, wherein: the socket wiring rod (7) is in a circular tube shape, the socket wiring rod (7) penetrates through two sides of one end of the first positioning plate (4) and is provided with a convex block (18), one end, far away from the side wall of the first cavity (9), of the convex block (18) is perpendicular to the socket wiring rod (7), the other end of the convex block (18) is arranged to be an inclined plane, the bottom end of the convex block (18) is positioned in the first positioning plate (4) and is provided with a third cavity (19), a sliding block (20) is arranged in the third cavity (19), the sliding block (20) is connected with the bottom of the convex block (18), one end, close to the side wall of the socket shell (3), of the third cavity (19) is connected with one end of a reset spring (21) respectively, and; the outer surface of the plug wiring rod (14) except the frontmost end is wrapped by a plug wiring rod (14) shell, and the frontmost end of the plug wiring rod (14) shell is provided with an inward inclined surface.

3. A small explosion proof electrical connector as defined in claim 1, wherein: the outer side surface of the screw cap (17) is provided with an anti-slip thread (23).

4. A small explosion proof electrical connector as defined in claim 1, wherein: the lug (18) is provided with a rubber pad (24) perpendicular to one surface of the socket wiring rod (7).

5. A small explosion proof electrical connector as defined in claim 1, wherein: slide in second cavity (15) and set up protection shield (25), protection shield (25) set up plug terminal rod (14) hole, the one end of protection spring (27) is connected to protection shield (25) rear end lateral surface, the other end and the second cavity (15) rear end lateral wall of protection spring (27) are connected, first locating plate (4) front end sets up protection piece (28), protection piece (28) front end flushes with socket terminal rod (7) front end.

6. A small explosion proof electrical connector as defined in claim 1, wherein: and insulating paint layers are sprayed on the inner side wall surfaces of the first cavity (9) and the second cavity (15).

Technical Field

The invention relates to the technical field of electric connectors, in particular to a small-sized explosion-proof electric connector.

Background

The electric connector is used as a connecting device of various in-use electric equipment for industrial and mining enterprises or civil use, and has the advantages of various types, different structures, wide application range and extremely large use amount. Typical electrical connector assemblies include a plug connector and a receptacle connector, both of which are provided with interengaging electrical terminals, the plug being inserted into or mated with the receptacle to interengage the terminals, which terminals may take a variety of configurations, including male and female terminals or bayonet terminals. At present, most terminal wiring parts of the electric connectors used on site are exposed outside, so that the explosion-proof requirement is far from being met.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the small explosion-proof electric connector with good explosion-proof effect and firm connection

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: a small-sized explosion-proof electric connector comprises a plug and a socket, wherein the socket comprises a socket shell, a first positioning plate, a socket sealing ring, a socket wire and a socket wiring rod, the foremost end of the socket shell is provided with threads, a first cavity is arranged in the socket shell, the front end of the first cavity is opened, the rear end of the first cavity is opened with a hole, the shape of the hole is consistent with the cross section of the socket wire, the socket wire penetrates through the rear end opening of the first cavity and is fixed in the first cavity, the first positioning plate is arranged at the middle position of the first cavity, the socket wiring rod is fixed on the first positioning plate, one end of the socket wiring rod is connected with the socket wire, the other end of the socket wiring rod extends out of the first positioning plate and is shorter than the distance from the first positioning plate to the front end of the socket shell, the socket sealing ring is fixed on the side wall of the rear end of the first cavity and is in contact with the socket wire, the plug, the plug wire is fixed in the second cavity through the rear end opening of the second cavity, a second positioning plate is arranged in the middle of the second cavity, a plug wiring rod is fixed on the second positioning plate, one end of the plug wiring rod is connected with the plug wire, the other end of the plug wiring rod extends out of the second positioning plate, the length of the plug wiring rod is shorter than the distance from the second positioning plate to the front end of the plug shell, a plug sealing ring is fixed on the side wall of the rear end of the second cavity and is in contact with the plug wire, a limiting block is arranged on the outer wall of the plug shell, and the plug shell is sleeved with a nut through the limiting block. When in use, the socket shell and the plug shell are aligned with each other, the socket shell is sleeved on the plug shell, the screw thread is contacted with the screw cap along with the increase of the distance between the socket shell and the outer surface of the plug shell, then the screw cap is rotated, in the process of matching the screw cap and the screw thread, the socket shell and the plug shell are connected with each other, and the distance between the socket shell and the outer surface of the plug shell is continuously increased, so that the first cavity and the second cavity form a sealed environment, then the socket wiring rod is contacted with the plug wiring rod to form a passage, finally the screw cap is completely matched with the screw thread to tightly connect the socket and the plug together, and because the socket wiring rod is in the process of contacting the socket wiring rod and the plug wiring rod in the sealed environment formed by the first cavity and the second cavity and is not contacted with the external environment, the explosion is avoided, and the external environment is not influenced even if the explosion occurs, the sealing effect can be further strengthened in the setting of sealing washer to dustproof, waterproof, and reduce the influence of explosion to external environment.

In order to enable the socket wiring rod and the plug wiring rod to be connected more tightly, the improved structure is that the socket wiring rod is in a circular tube shape, the two sides of one end, penetrating through the first positioning plate, of the socket wiring rod are respectively provided with a convex block, one end, far away from the side wall of the first cavity, of each convex block is perpendicular to the socket wiring rod, the other end of each convex block is provided with an inclined surface, the bottom end of each convex block, positioned in the first positioning plate, is respectively provided with a third cavity, a sliding block is arranged in each third cavity, the sliding block is connected with the bottom of each convex block, one end, close to the side wall of the socket shell; the outer surface of the plug wiring rod except the foremost end is wrapped with a plug wiring rod shell, and the foremost end of the plug wiring rod shell is provided with an inward inclined plane. In socket wiring pole and plug wiring pole contact process, during the plug wiring pole stretched into "pipe" form socket wiring pole, the effort can be applyed to the inclined plane of lug to the inside inclined plane of plug wiring pole shell foremost to make the lug remove to socket wiring pole center direction, make the side of the vertical direction of lug press from both sides tight plug wiring pole, make socket wiring pole and plug wiring pole be connected inseparabler.

In order to make the nut more convenient to rotate, the invention improves that the lateral surface of the outer side of the nut is provided with anti-skid grains.

In order to better clamp the plug wiring rod by the convex block, the invention improves the structure that a rubber pad is arranged on one surface of the convex block, which is vertical to the socket wiring rod.

In order to protect the plug wiring pole when the plug is not used, the invention is improved in that a protection plate is arranged in the second cavity in a sliding mode, the protection plate is provided with a plug wiring pole hole, the side face of the rear end of the protection plate is connected with one end of a protection spring, the other end of the protection spring is connected with the side wall of the rear end of the second cavity, the front end of the first positioning plate is provided with a protection block, and the front end of the protection block is flush with the front end of the socket wiring pole. When the plug wiring pole protection device is used, along with the increase of the distance of the socket shell on the outer surface of the plug shell, the protection block abuts against the protection plate to enable the protection plate to abut against the plug wiring pole hole at the back, so that the plug wiring pole is exposed, the plug wiring pole is convenient to contact with the socket wiring pole, and when the plug wiring pole protection device does not work, the protection plate is located at the front end of the plug wiring pole under the action of the protection spring to protect the plug wiring pole.

In order to increase the safety of the small explosion-proof electric connector, the invention improves that the inner side wall surfaces of the first cavity and the second cavity are sprayed with insulating paint layers.

(III) advantageous effects

Compared with the prior art, the invention provides a small-sized explosion-proof electric connector which has the following beneficial effects: when the small-sized explosion-proof electric connector is used, the socket shell and the plug shell are aligned with each other, the socket shell is sleeved on the plug shell, the screw thread is contacted with the screw cap along with the increase of the distance between the socket shell and the outer surface of the plug shell, then the screw cap is rotated, in the process of matching the screw cap and the screw thread, the socket shell and the plug shell are mutually connected, the distance between the socket shell and the outer surface of the plug shell is continuously increased, so that the first cavity and the second cavity form a sealed environment, then the socket wiring rod is contacted with the plug wiring rod to form a passage, finally the screw cap is completely matched with the screw thread to tightly connect the socket and the plug together, and because the process of contacting the socket wiring rod and the plug wiring rod is carried out in the sealed environment formed by the first cavity and the second cavity and is not contacted with the external environment, the explosion is avoided, and even though the explosion occurs, the external environment can not be influenced, the sealing effect can be further enhanced by the arrangement of the sealing ring, so that the sealing ring is dustproof and waterproof, and the influence of explosion on the external environment is reduced. In socket wiring pole and plug wiring pole contact process, during the plug wiring pole stretched into "pipe" form socket wiring pole, the effort can be applyed to the inclined plane of lug to the inside inclined plane of plug wiring pole shell foremost to make the lug remove to socket wiring pole center direction, make the side of the vertical direction of lug press from both sides tight plug wiring pole, can make socket wiring pole and plug wiring pole be connected inseparabler. The rubber pad is arranged on one surface, perpendicular to the socket wiring rod, of the lug, so that the effect of clamping the plug wiring rod by the lug can be enhanced. When the plug wiring pole protection device is used, along with the increase of the distance of the socket shell on the outer surface of the plug shell, the protection block abuts against the protection plate to enable the protection plate to abut against the plug wiring pole hole at the back, so that the plug wiring pole is exposed, the plug wiring pole is convenient to contact with the socket wiring pole, and when the plug wiring pole protection device does not work, the protection plate is located at the front end of the plug wiring pole under the action of the protection spring to protect the plug wiring pole. Insulating paint layers are sprayed on the surfaces of the inner side walls of the first cavity and the second cavity, so that the safety of the small explosion-proof electric connector is improved.

Drawings

Fig. 1 is a schematic structural view of the socket of the present invention;

FIG. 2 is a schematic view of the plug structure of the present invention;

FIG. 3 is a schematic structural view of the present invention;

FIG. 4 is a schematic view of the structure of the socket connecting rod of the present invention

FIG. 5 is a schematic view of the structure of the plug connecting rod of the present invention

FIG. 6 is a schematic view of the structure of the socket connecting rod and the plug connecting rod of the present invention cooperating with each other

In the figure: 1. a plug; 2. a socket; 3. a socket housing; 4. a first positioning plate; 5. a socket seal ring; 6. a socket line; 7. a socket terminal bar; 8. a thread; 9. a first cavity; 10. a plug housing; 11. a second positioning plate; 12. a plug seal ring; 13. a plug cord; 14. a plug terminal bar; 15. a second cavity; 16. a limiting block; 17. a nut; 18. a bump; 19. a third cavity; 20. a slider; 21. a return spring; 22. a plug terminal housing; 23. anti-skid lines; 24. a rubber pad; 25. a protection plate; 26. a plug terminal post hole; 27. a protection spring; 28. and (5) protecting the block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, a small-sized explosion-proof electrical connector comprises a plug 1 and a socket 2, the socket 2 comprises a socket housing 3, a first positioning plate 4, a socket sealing ring 5, a socket wire 6 and a socket wire connecting rod 7, the foremost end of the socket housing 3 is provided with a screw thread 8, the socket housing 3 is internally provided with a first cavity 9, the front end of the first cavity 9 is opened, the rear end of the first cavity 9 is opened with a hole, the shape of the hole is consistent with the cross section of the socket wire 6, the socket wire 6 passes through the rear end opening of the first cavity 9 and is fixed in the first cavity 9, the first positioning plate 4 is arranged in the middle of the first cavity 9, the socket wire connecting rod 7 is fixed on the first positioning plate 4, one end of the socket wire connecting rod 7 is connected with the socket wire 6, the other end of the socket wire connecting rod extends out of the first positioning plate 4 and has a length shorter than the distance from the first positioning plate 4 to the front end of the socket housing, the plug 1 comprises a plug shell 10, a second positioning plate 11, a plug sealing ring 12, a plug wire 13 and a plug wiring rod 14, a second cavity 15 is arranged in the plug shell 10, the front end of the second cavity 15 is open, the rear end of the second cavity 15 is provided with a hole, the shape of the hole is consistent with the cross section of the plug wire 13, the plug wire 13 penetrates through the hole at the rear end of the second cavity 15 and is fixed in the second cavity 15, the second positioning plate 11 is arranged at the middle position of the second cavity 15, the plug wiring rod 14 is fixed on the second positioning plate 11, one end of the plug wiring rod 14 is connected with the plug wire 13, the other end of the plug wire extends out of the second positioning plate 11 and is shorter than the distance from the second positioning plate 11 to the front end of the plug shell 10, the plug sealing ring 12 is fixed on the side wall of the rear end of the second cavity 15 and is in contact with the plug wire 13. When the socket is used, the socket shell 3 and the plug shell 10 are aligned with each other, the socket shell 3 is sleeved on the plug shell 10, the distance between the socket shell 3 and the outer surface of the plug shell 10 is increased, the threads 8 are contacted with the screw cap 17, then the screw cap 17 is rotated, in the process that the screw cap 17 is matched with the threads 8, the socket shell 3 and the plug shell 10 are connected with each other, the distance between the socket shell 3 and the outer surface of the plug shell 10 is continuously increased, so that the first cavity 9 and the second cavity 15 form a sealed environment, then the socket wiring rod 7 is contacted with the plug wiring rod 14 to form a passage, finally the screw cap 17 is completely matched with the threads 8, the socket 2 and the plug 1 are tightly connected together, and because the socket wiring rod 7 is contacted with the plug rod 14 in the process that the first cavity 9 and the second cavity 15 form a sealed environment, the socket wiring rod 7 is not contacted with the external environment, so avoid the explosion, even though moreover explode, can not influence external environment yet, sealed effect can further be strengthened in the setting of sealing washer to dustproof, waterproof, and reduce the influence of explosion to external environment.

The socket wiring rod 7 is in a circular tube shape, two sides of one end, penetrating through the first positioning plate 4, of the socket wiring rod 7 are respectively provided with a convex block 18, one end, far away from the side wall of the first cavity 9, of the convex block 18 is perpendicular to the socket wiring rod 7, the other end of the convex block 18 is provided with an inclined plane, the bottom end of the convex block 18 is positioned in the first positioning plate 4 and is respectively provided with a third cavity 19, a sliding block 20 is arranged in the third cavity 19, the sliding block 20 is connected with the bottom of the convex block 18, one end, close to the side wall of the socket shell 3, of the third cavity 19 is respectively connected with one end; the outer surface of the plug terminal rod 14 except the frontmost end is wrapped by a shell of the plug terminal rod 14, and the frontmost end of the shell of the plug terminal rod 14 is provided with an inward slope. In the contact process of the socket wiring pole 7 and the plug wiring pole 14, the plug wiring pole 14 extends into the round tube-shaped socket wiring pole 7, the inward inclined plane of the most front end of the shell of the plug wiring pole 14 can exert an acting force on the inclined plane of the lug 18, so that the lug 18 moves towards the center of the socket wiring pole 7, the side face of the lug 18 in the vertical direction clamps the plug wiring pole 14, and the socket wiring pole 7 is connected with the plug wiring pole 14 more tightly.

The screw cap 17 is provided with anti-slip threads 23 on its outer side to facilitate rotation of the screw cap 17.

In order to better clamp the plug terminal rod 14 by the lug 18, the invention improves that the lug 18 is provided with a rubber pad 24 perpendicular to the surface of the socket terminal rod 7, so that the lug 18 better clamps the plug terminal rod 14.

A protection plate 25 is arranged in the second cavity 15 in a sliding mode, the protection plate 25 is provided with a plug wiring rod 14 hole, the rear end side face of the protection plate 25 is connected with one end of a protection spring 27, the other end of the protection spring 27 is connected with the rear end side wall of the second cavity 15, a protection block 28 is arranged at the front end of the first positioning plate 4, and the front end of the protection block 28 is flush with the front end of the socket wiring rod 7. When the plug connector is used, along with the increase of the distance of the socket shell 3 sleeved on the outer surface of the plug shell 10, the protection block 28 abuts against the protection plate 25 to abut against the protection plate 25 to the back of the hole of the plug connector rod 14, so that the plug connector rod 14 is exposed, the contact between the plug connector rod 14 and the socket connector rod 7 is facilitated, and when the plug connector rod is not operated, the protection plate 25 is positioned at the front end of the plug connector rod 14 under the action of the protection spring 27 to protect the plug connector rod 14.

Insulating paint layers are sprayed on the inner side wall surfaces of the first cavity 9 and the second cavity 15, so that the safety of the small explosion-proof electric connector is improved.

In summary, in the small explosion-proof electrical connector, when in use, the socket housing 3 and the plug housing 10 are aligned with each other, the socket housing 3 is sleeved on the plug housing 10, the screw thread 8 is contacted with the screw cap 17 as the distance between the socket housing 3 and the outer surface of the plug housing 10 increases, then the screw cap 17 is rotated, in the process of matching the screw cap 17 with the screw thread 8, the socket housing 3 and the plug housing 10 are connected with each other and the distance between the socket housing 3 and the outer surface of the plug housing 10 continues to increase, so that the first cavity 9 and the second cavity 15 form a sealed environment, then the socket terminal rod 7 is contacted with the plug terminal rod 14 to form a passage, finally the screw cap 17 is completely matched with the screw thread 8, the socket 2 and the plug 1 are tightly connected together, and because the process of contacting the socket terminal rod 7 with the plug terminal rod 14 occurs in the sealed environment formed by the first cavity 9 and the second cavity 15, not contact with external environment, so avoid exploding, even explode moreover, can not influence external environment yet, sealed effect can further be strengthened in the setting up of sealing washer to dustproof, waterproof, and reduce the influence of explosion to external environment. In the contact process of the socket wiring pole 7 and the plug wiring pole 14, the plug wiring pole 14 extends into the round tube-shaped socket wiring pole 7, the inward inclined plane of the most front end of the shell of the plug wiring pole 14 can exert an acting force on the inclined plane of the lug 18, so that the lug 18 moves towards the center of the socket wiring pole 7, the side face of the lug 18 in the vertical direction clamps the plug wiring pole 14, and the socket wiring pole 7 is connected with the plug wiring pole 14 more tightly. With the distance of the socket shell 3 sleeved on the outer surface of the socket shell 10 increasing, the protection block 28 pushes the protection plate 25 to push the protection plate 25 to the back of the hole of the plug wiring rod 14, so that the plug wiring rod 14 is exposed, the contact between the plug wiring rod 14 and the socket wiring rod 7 is facilitated, and when the plug wiring rod 14 does not work, the protection plate 25 is positioned at the front end of the plug wiring rod 14 under the action of the protection spring 27 to protect the plug wiring rod 14.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

In the description herein, it is noted that relational terms such as first and second, and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.