CN220272842U - Explosion-proof plug connector of male head, explosion-proof plug connector of female head and explosion-proof plug assembly - Google Patents

Abstract

The utility model relates to the technical field of wires, in particular to a male explosion-proof plug connector, a female explosion-proof plug connector and an explosion-proof plug assembly, wherein the male explosion-proof plug connector comprises a first wire body and a first connector assembly which are electrically connected, the first connector assembly comprises a first connecting piece and a male assembly, a first cavity is arranged in the first connecting piece, the first cavity is communicated with the outside through two ends of the first connecting piece, the male assembly is arranged in the first cavity, the first wire body penetrates into the first cavity from one end of the first connecting piece and is connected with the male assembly, and a first gap is formed between the end face of the male assembly and the inner wall of the first cavity; the first joint assembly further comprises a first nut, the outer wall of the first connecting piece comprises a first smooth section and a first matching section which are connected, the first nut is slidably arranged on the first smooth section, and when the internal thread position of the first nut is matched with the first matching section, a second gap is formed between the first nut and the first matching section. The novel explosion-proof plug assembly has good explosion-proof performance.

Description

Explosion-proof plug connector of male head, explosion-proof plug connector of female head and explosion-proof plug assembly

Technical Field

The utility model relates to the technical field of wires, in particular to a male explosion-proof plug connector, a female explosion-proof plug connector and an explosion-proof plug assembly.

Background

Connectors are indispensable electrical components in many fields for transmitting power and signals in various devices and systems, whether factory production lines, office devices or home appliances, and are required to ensure the proper operation of electronic devices, however, in some special environments, such as high-risk places like chemical factories, oil drilling platforms, coal mines, etc., common connectors may present potential safety risks because of dangerous factors such as inflammable and explosive substances, combustible gases or vapors.

In order to solve the safety problem in these special occasions, the connecting wire needs to be designed to be explosion-proof, so as to reduce or eliminate the spark arc and the electrostatic discharge, thereby reducing the explosion risk.

Disclosure of Invention

The utility model provides a male anti-explosion plug connector, a female anti-explosion plug connector and an anti-explosion plug assembly, which are used for solving the technical problem that the conventional common connecting wire is not suitable for high-risk places.

The utility model provides a male anti-explosion plug connector, which comprises a first wire body and a first connector assembly which are electrically connected, wherein the first connector assembly comprises a first connecting piece and a male connector assembly, a first cavity is arranged in the first connecting piece, the first cavity is communicated with the outside through two ends of the first connecting piece, the male connector assembly is arranged in the first cavity, the first wire body penetrates into the first cavity from one end of the first connecting piece to be connected with the male connector assembly, and a first gap is formed between the end face of the male connector assembly and the inner wall of the first cavity;

The first joint assembly further comprises a first nut, the outer wall of the first connecting piece comprises a first smooth section and a first matching section which are connected, the first nut is slidably arranged on the first smooth section, and when the internal thread position of the first nut is matched with the first matching section, a second gap is formed between the first nut and the first matching section.

Preferably, a first channel is arranged in the first cavity, and a first thread section is arranged in the first channel;

the first joint assembly further comprises a plugging assembly, the plugging assembly comprises a second connecting piece, and one end of the second connecting piece is provided with a second thread section matched with the first thread section.

Preferably, a second channel communicated with the first channel is arranged in the second connecting piece, a first insulating filling piece is arranged at one end, far away from the first connecting piece, of the second channel, and a supporting piece is arranged at one end, far away from the first connecting piece, of the second connecting piece.

Preferably, the second connecting piece comprises a second threaded section, a second smooth section, a flange plate and a third threaded section which are connected in sequence; a first sealing groove is formed in the second smooth section or between the second smooth section and the second threaded section, and a first sealing element is arranged in the first insulating filling element sealing groove; one end of the first connecting piece is close to or abutted against the flange plate; the abutting piece is in threaded fit with the third threaded section and abuts against one end of the second channel.

Preferably, a third smooth section matched with the second smooth section is arranged at one end, close to the second connecting piece, of the first channel, and at least one fixing hole is formed in the second smooth section.

Preferably, a pressing ring is further arranged in the second channel, and the abutting piece abuts against the first insulating filling piece through the pressing ring; and a limiting step is arranged in the second channel, and one end, far away from the compression ring, of the first insulating filling piece abuts against the limiting step.

Preferably, the male component comprises an insulating component and a conductive male; the insulating assembly comprises an insulating sleeve and an insulating cover, a penetrating gap channel is formed in the insulating sleeve, the conductive male head is arranged in the gap channel, a gap hole is formed in the insulating cover, the section radius of the gap hole is smaller than that of the conductive male head, and the first wire body is electrically connected with the conductive male head in the gap channel through the gap hole.

The utility model provides a female anti-explosion plug connector, which is used for being matched with the male anti-explosion plug connector and comprises a second wire body and a second connector assembly which are electrically connected, wherein the second connector assembly comprises a third connecting piece and a female connector assembly, a second cavity is arranged in the third connecting piece, the second cavity is communicated with the outside through two ends of the third connecting piece, the female connector assembly is arranged in the second cavity, the second wire body penetrates into the second cavity from one end of the third connecting piece to be connected with the female connector assembly, and a third gap is formed between the female connector assembly and the inner wall of the second cavity; and a fourth thread section is arranged on the outer surface of one end of the third connecting piece, which is far away from the second wire body.

Preferably, a fifth thread section is arranged at one end of the third connecting piece, which is close to the second wire body; the second joint assembly further includes a washer assembly and a second insulating filler, the washer assembly being located between the female assembly and the second insulating filler.

The utility model provides an explosion-proof plug assembly, which comprises a male explosion-proof plug connector and a female explosion-proof plug connector; the male explosion-proof plug connector comprises a first wire body and a first connector assembly which are electrically connected, the first connector assembly comprises a first connecting piece and a male connector assembly, a first cavity is arranged in the first connecting piece, the first cavity is communicated with the outside through the two ends of the first connecting piece, the male connector assembly is arranged in the first cavity, the first wire body penetrates into the first cavity from one end of the first connecting piece and is connected with the male connector assembly, and a first gap is formed between the end face of the male connector assembly and the inner wall of the first cavity;

the first joint assembly further comprises a first nut, the outer wall of the first connecting piece comprises a first smooth section and a first matching section which are connected, the first nut is slidably arranged on the first smooth section, and when the internal thread position of the first nut is matched with the first matching section, a second gap is formed between the first nut and the first matching section;

The female anti-explosion plug connector comprises a second wire body and a second connector assembly which are electrically connected, the second connector assembly comprises a third connecting piece and a female connector assembly, a second cavity is arranged in the third connecting piece, the second cavity is communicated with the outside through two ends of the third connecting piece, the female connector assembly is arranged in the second cavity, the second wire body penetrates into the second cavity from one end of the third connecting piece to be connected with the female connector assembly, and a third gap is formed between the female connector assembly and the inner wall of the second cavity; a fourth thread section is arranged on the outer surface of one end, far away from the second wire body, of the third connecting piece;

the male head component is connected with or disconnected from the female head component through insertion and extraction, and the fourth thread section is in threaded fit with the first nut.

When the two are connected, the female head assembly is positioned in the first gap, and one end of the first connecting piece is positioned in the third gap; one end of the third connecting piece is positioned in the second gap.

Compared with the prior art, the utility model provides the male anti-explosion plug connector, the female anti-explosion plug connector and the anti-explosion plug assembly, which have the following advantages:

1. According to the male anti-explosion plug connector provided by the embodiment of the utility model, the anti-explosion performance of the male anti-explosion plug connector is improved by arranging the anti-explosion structure on the first joint component; specifically, first clearance is formed between the end face of the male component and the inner wall of the first cavity, so that the female anti-explosion plug connector is arranged in the first clearance, then a second clearance is formed between the first nut and the first matching section and used for forming a spigot anti-explosion surface when being matched with the female anti-explosion plug connector, then the first nut positioned at the outermost layer of the first connecting piece is used for realizing threaded matching of the male anti-explosion plug connector and the female anti-explosion plug connector, the thread anti-explosion surface is formed with the outer layer of the spigot anti-explosion surface, the anti-explosion performance of the male anti-explosion plug connector can be greatly improved through overlapping and matching of the spigot anti-explosion surface and the thread anti-explosion surface, wrapping and blocking of the male component and the female component are realized, and sparks, electric arcs, static electricity and the like generated by the male anti-explosion plug connector are prevented from entering an external high-risk environment.

2. The first joint assembly further comprises a blocking assembly, and the end part of the first joint assembly is further sealed in a way of arranging the blocking assembly, so that sparks, electric arcs, static electricity and the like generated by the male head assembly and the female head assembly can be prevented from entering an external high-risk environment from the end part of the first connecting piece; moreover, the first connecting piece and the second connecting piece are in tight threaded fit through the first threaded section and the second threaded section which are respectively arranged, a threaded explosion-proof surface is further formed at the joint of the first connecting piece and the plugging component, and spark, electric arc, static electricity and the like generated by the male component and the female component can be better prevented from entering an external high-risk environment from the joint of the first connecting piece and the second connecting piece.

3. The plugging assembly comprises the first insulating filling piece, the insulating filling piece is used for plugging the channel, the better effect of isolating sparks, electric arcs and static electricity can be achieved, the insulating piece is propped by the propping piece, the first insulating filling piece can be prevented from falling off in the using process, the working stability of the male explosion-proof plug connector is improved, and the service life of the male explosion-proof plug connector is prolonged.

4. According to the first structural component provided by the embodiment of the utility model, the first sealing groove is formed on the second smooth section or between the second smooth section and the second threaded section, the first sealing element is arranged in the first insulating filling element sealing groove, namely, the sealing structure is additionally arranged outside the threaded isolating section, so that the first connecting element and the second connecting element can be effectively ensured to keep better tight threaded fit, and the flange plate I can be matched with the second smooth section to form a step to provide support for one end of the first connecting element, and the excessive threaded fit of the first connecting element and the second connecting element is avoided; meanwhile, the flange facilitates the staff to use tools such as an external wrench to rapidly rotate the second connecting piece, the assembly efficiency of the male explosion-proof plug connector is improved, and even if the wrench is not used, the flange nut structure can better provide an acting point, so that the staff can conveniently rotate the second connecting piece manually.

5. According to the first connecting piece and the second connecting piece, the additional second smooth section and the third smooth section are additionally arranged, and the fixing holes are correspondingly formed, so that the first connecting piece and the second connecting piece can be conveniently fixed tightly through the fixing holes by using parts such as the threaded pieces, the first connecting piece and the second connecting piece can be prevented from rotating relatively in the circumferential direction after being assembled, tight threaded fit between the first connecting piece and the second connecting piece is better ensured, and further the explosion-proof capacity of a threaded partition section can be ensured to be continuously effective.

6. The second channel is further internally provided with the pressing ring, and the pressing ring is arranged between the abutting part and the first insulating filling part, so that the abutting part can extrude the first insulating filling part by means of the pressing ring, the first insulating filling part can fill the second channel better, and the blocking capacity of the blocking assembly is further improved.

7. The insulating assembly is arranged outside the male head assembly, so that conduction between the conductive male head and the first connecting piece, the second connecting piece and other parts is avoided, and the safety performance of the male head explosion-proof plug connector is improved.

8. The embodiment of the utility model also provides a female anti-explosion plug connector, which is used for being matched with the male anti-explosion plug connector, and the anti-explosion performance of the female anti-explosion plug connector when being matched with the male anti-explosion plug connector is improved by arranging an anti-explosion structure on the second joint component; specifically, let female first explosion-proof plug connector set up in first clearance earlier, then through first nut with form the second clearance between the first cooperation section, then through at female first subassembly with form the third clearance between the inner wall of second cavity, let the one end of first connecting piece be located the third clearance, form tang explosion-proof face in the junction of male first explosion-proof plug connector and female first explosion-proof plug connector through the cooperation of several layers, the first nut that the rethread is located first connecting piece outermost layer realizes the screw thread cooperation of male first explosion-proof plug connector and female first explosion-proof plug connector to form the screw thread explosion-proof face with the skin of tang explosion-proof face, can greatly improve the explosion-proof performance of male first explosion-proof plug connector through tang explosion-proof face and screw thread explosion-proof stack cooperation, realize the parcel to male first subassembly and female first subassembly and cut off, spark, electric arc and static etc. that avoid its production enter into external high-risk environment.

9. The embodiment of the utility model also provides an explosion-proof plug assembly, which comprises the male explosion-proof plug and the female explosion-proof plug, and has the beneficial effects of the male explosion-proof plug and the female explosion-proof plug, and the description is omitted herein.

Drawings

Fig. 1 is a schematic view of an explosion-proof plug assembly according to an embodiment of the present utility model.

Fig. 2 is a cross-sectional view of a male explosion-proof plug of an explosion-proof plug assembly according to an embodiment of the present utility model.

Fig. 3 is a schematic structural diagram of an explosion-proof plug assembly according to an embodiment of the present utility model.

Fig. 4 is a cross-sectional view of a first connector of an explosion-proof plug assembly according to an embodiment of the present utility model.

Fig. 5 is a schematic structural diagram of a second connector of an explosion-proof plug assembly according to an embodiment of the present utility model.

Fig. 6 is a schematic structural diagram of a second connector of an explosion-proof plug assembly according to another embodiment of the present utility model.

Fig. 7 is an exploded view of a male explosion-proof plug of an explosion-proof plug assembly according to an embodiment of the present utility model.

Fig. 8 is an exploded view of an insulation assembly of an explosion-proof plug assembly according to an embodiment of the present utility model.

Fig. 9 is an exploded view of a female explosion-proof plug of an explosion-proof plug assembly according to an embodiment of the present utility model.

Fig. 10 is a cross-sectional view of a female explosion-proof plug of an explosion-proof plug assembly according to an embodiment of the present utility model.

Fig. 11 is a cross-sectional view of a conductive male of an explosion-proof plug assembly according to an embodiment of the present utility model.

The attached drawings are used for identifying and describing:

100. an explosion-proof plug assembly;

10. the male explosion-proof plug connector; 1. a first wire body; 2. a first joint assembly; 21. a first connector; 211. a first cavity; 2111. a first channel; 21111. a first thread segment; 21112. a third smooth section; 211121, fixing holes; 21113. a first mating structure; 212. a first smooth section; 213. a first mating segment; 22. a male component; 221. an insulating assembly; 2211. an insulating sleeve; 22111. a avoidance channel; 2212. an insulating cover; 22121. a clearance hole; 222. a conductive male; 2221. a locking hole; 2222. an accommodation hole; 2223. a set screw; 23. a first nut; 24. a plugging assembly; 241. a second connector; 2411. a second thread segment; 2412. a second smooth section; 2413. a flange plate; 2414. a third thread segment; 2415. a first seal groove; 2416. a first seal; 242. a second channel; 243. a first insulating filler; 244. a compression ring; 245. a holding member; 3. a first gap; 4. a second gap;

20. A female explosion-proof plug connector; 5. a second wire body; 6. a second joint assembly; 61. a third connecting member; 611. a second cavity; 612. a fourth thread segment; 613. a fifth thread segment; 62. a female head assembly; 63. a gasket assembly; 64. a second insulating filler; 7. and a third gap.

Detailed Description

For the purpose of making the technical solution and advantages of the present utility model more apparent, the present utility model will be further described in detail below with reference to the accompanying drawings and examples of implementation. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It should be noted that the terms "first" and "second" and the like in the description and the claims of the present utility model are used for distinguishing between different objects and not for describing a particular sequential order.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "mounted," "disposed," "configured," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1, a first embodiment of the present utility model provides an explosion-proof plug assembly 100, which includes a male explosion-proof plug 10 and a female explosion-proof plug 20, wherein the male explosion-proof plug 10 includes a first wire body 1 and a first connector assembly 2 connected to each other, the female explosion-proof plug 20 includes a second wire body 5 and a second connector assembly 6 connected to each other, the first connector assembly 2 and the second connector assembly 6 are electrically connected in a plug-in manner, and the connection between the first connector assembly 2 and the second connector assembly 6 is detachable connection.

Further, referring to fig. 2 to 4, the male explosion-proof plug 10 includes a first wire body 1 and a first connector assembly 2 that are electrically connected, the first connector assembly 2 includes a first connector 21 and a male assembly 22, a first cavity 211 is disposed in the first connector 21, the first cavity 211 is communicated with the outside through two ends of the first connector 21, that is, two ends of the first connector 21 are respectively provided with openings for connecting the first cavity 211 and the outside; the male component 22 is arranged in the first cavity 211, the first wire body 1 penetrates into the first cavity 211 from an opening at one end of the first connecting piece 21 to be connected with the male component 22, and a first gap 3 is formed between the end face of the male component 22 and the inner wall of the first cavity 211;

The first joint assembly 2 further comprises a first nut 23, the outer wall of the first connecting member 21 comprises a first smooth section 212 and a first mating section 213 connected to each other, the first nut 23 is slidably arranged on the first smooth section 212, and when the internal thread position of the first nut 23 is matched with the first mating section 213, a second gap 4 is formed between the first nut 23 and the first mating section 213. It should be noted that, the position of the internal thread of the first nut 23 matching with the first mating segment 213 means that the position corresponds to the position, and not the threaded mating therebetween.

It can be appreciated that, according to the male explosion-proof plug connector 10 provided by the embodiment of the present utility model, the explosion-proof performance of the male explosion-proof plug connector 10 is improved by arranging the explosion-proof structure on the first joint assembly 2; specifically, a first gap 3 is formed between the end face of the male component 22 and the inner wall of the first cavity 211, so that the female explosion-proof plug connector 20 is arranged in the first gap 3, then a second gap 4 is formed between the first nut 23 and the first matching section 213 and is used for forming a spigot explosion-proof surface when being matched with the female explosion-proof plug connector 20, and then the first nut 23 positioned at the outermost layer of the first connecting piece 21 is used for realizing the threaded matching of the male explosion-proof plug connector 10 and the female explosion-proof plug connector 20, so that a threaded explosion-proof surface is formed at the outer layer of the spigot explosion-proof surface, the explosion-proof performance of the male explosion-proof plug connector 10 can be greatly improved through the overlapping matching of the spigot explosion-proof surface and the threads, the wrapping and blocking of the male component 22 and the female component 62 can be realized, and sparks, electric arcs, static electricity and the like generated by the spigot explosion-proof plug connector 20 are prevented from entering an external high-risk environment.

Further, referring to fig. 2 and fig. 4 to fig. 6, a first channel 2111 is provided in the first cavity 211, and a first thread section 21111 is provided in the first channel 2111;

the first joint assembly 2 further comprises a plugging assembly 24, the plugging assembly 24 comprising a second connector 241, one end of the second connector 241 being provided with a second threaded section 2411 which mates with the first threaded section 21111.

It can be appreciated that the first joint assembly 2 according to the embodiment of the present utility model further includes the plugging assembly 24, and by providing the plugging assembly 24 to further seal the end portion of the first joint assembly 2, spark, arc, static electricity, etc. generated by the male assembly 22 and the female assembly 62 can be prevented from entering the external high-risk environment from the end portion of the first connector 21; in addition, the first connecting piece 21 and the second connecting piece 241 further realize tight threaded fit through the first threaded section 21111 and the second threaded section 2411 which are respectively arranged, and further form a threaded explosion-proof surface at the joint of the first connecting piece 21 and the plugging assembly 24, so that sparks, electric arcs, static electricity and the like generated by the male head assembly 22 and the female head assembly 62 can be better prevented from entering an external high-risk environment from the joint of the first connecting piece 21 and the second connecting piece 241.

Further, referring to fig. 4 and 7 in combination, a first mating structure 21113 is disposed in the first channel 2111, and a second mating structure is disposed on the male component 22, and the first mating structure 21113 and the second mating structure are adapted to limit the relative rotation between the first connector 21 and the male component 22 in the circumferential direction.

Further, a second channel 242 communicating with the first channel 2111 is disposed in the second connecting member 241, a first insulating filling member 243 is disposed at an end of the second channel 242 away from the first connecting member 21, and a supporting member 245 is disposed at an end of the second connecting member 241 away from the first connecting member 21.

It can be appreciated that the plugging assembly 24 according to the embodiment of the present utility model includes the first insulating filler 243, the insulating filler is used to plug the channel, so that a better effect of isolating sparks, arcs and static electricity can be achieved, and the supporting member 245 is used to support the insulating member, so that the first insulating filler 243 can be prevented from falling off during the use process, which is beneficial to improving the working stability of the male explosion-proof plug 10 and prolonging the working life of the male explosion-proof plug 10.

Specifically, the first insulating filler 243 is a rubber member.

Specifically, the abutment 245 is a nut.

It should be noted that, the middle areas of the first insulating filling member 243 and the supporting member 245 are provided with a clearance hole 22121 for the wire body to pass through.

Further, referring to fig. 5 and 6, the second connecting member 241 includes a second threaded section 2411, a second smooth section 2412, a flange 2413 and a third threaded section 2414 connected in sequence; a first seal groove 2415 is provided on the second smooth section 2412 or between the second smooth section 2412 and the second threaded section 2411, and a first seal 2416 is provided in the first insulation filler 243 seal groove; one end of the first connecting piece 21 is close to or abuts against the flange 2413; the abutment 245 is threadedly engaged with the third threaded section 2414 and abuts an end of the second channel 242.

It can be appreciated that, in the first structural component according to the embodiment of the present utility model, by providing the first seal groove 2415 on the second smooth section 2412 or between the second smooth section 2412 and the second threaded section 2411, the first seal member 2416 is provided in the seal groove of the first insulating filling member 243, that is, by adding a seal structure outside the threaded partition surface, it can be effectively ensured that the first connecting member 21 and the second connecting member 241 maintain a better tight threaded fit, and by providing the flange 2413, which can be matched with the second smooth section 2412 to form a step, support is provided for one end of the first connecting member 21, so as to avoid excessive threaded fit between the first connecting member 21 and the second connecting member 241; meanwhile, the flange 2413 facilitates the staff to use tools such as external wrenches to rotate the second connecting piece 241 rapidly, which is beneficial to improving the assembly efficiency of the male explosion-proof plug connector 10, and even if no wrenches are used, the nut structure of the flange 2413 can provide the force points better, which facilitates the staff to rotate the second connecting piece 241 manually.

Specifically, the first seal 2416 is a seal ring.

Further, a sealing ring is also provided at the first mating section 213 of the first connector 21.

It can be appreciated that, in this embodiment, the waterproof performance of the explosion-proof plug assembly 100 can be effectively enhanced by the manner of setting the sealing ring.

Further, a third smooth segment 21112 matching with the second smooth segment 2412 is provided at the end of the first channel 2111 near the second connecting member 241, and at least one fixing hole 211121 is provided on the second smooth segment 2412.

It can be appreciated that, in the embodiment of the present utility model, by adding the additional second smooth section 2412 and the third smooth section 21112 to the first connecting piece 21 and the second connecting piece 241 and correspondingly providing the fixing hole 211121, the first connecting piece 21 and the second connecting piece 241 are conveniently fastened and fixed by the screw member and other parts through the fixing hole 211121, so that the first connecting piece 21 and the second connecting piece 241 can be prevented from rotating relatively in the circumferential direction after the assembly is completed, thereby better ensuring the tight screw fit between the first connecting piece 21 and the second connecting piece 241, and further ensuring that the explosion-proof capability of the screw thread separation section can be continuously effective.

Further, a pressing ring 244 is further disposed in the second channel 242, and the supporting member 245 supports the first insulating filling member 243 through the pressing ring 244; the second channel 242 is provided with a limiting step, and one end of the first insulating filling member 243, which is far away from the pressing ring 244, abuts against the limiting step.

It can be appreciated that, in the embodiment of the present utility model, the second channel 242 is further provided with the pressing ring 244, and the pressing ring 244 is disposed between the abutting member 245 and the first insulating filling member 243, so that the abutting member 245 can press the first insulating filling member 243 by means of the pressing ring 244, so that the first insulating filling member 243 can better fill the second channel 242, and the blocking capability of the plugging assembly 24 is further improved.

Further, referring to fig. 8, the male component 22 includes an insulating component 221 and a conductive male 222; the insulation component 221 comprises an insulation sleeve 2211 and an insulation cover 2212, wherein a through avoidance channel 22111 is arranged on the insulation sleeve 2211, the conductive male head 222 is arranged in the avoidance channel 22111, a avoidance hole 22121 is arranged on the insulation cover 2212, the section radius of the avoidance hole 22121 is smaller than that of the conductive male head 222, and the first wire body 1 is electrically connected with the conductive male head 222 in the avoidance channel 22111 through the avoidance hole 22121.

It can be appreciated that the insulation component 221 is arranged outside the male component 22 in the embodiment of the present utility model, so that the conductive male 222 is prevented from being conducted with the first connecting piece 21, the second connecting piece 241 and other parts, which is beneficial to improving the safety performance of the male explosion-proof plug connector 10; by designing the aperture of the avoidance hole 22121, the insulation cover 2212 can support the conductive male head 222, so as to prevent the conductive male head 222 from penetrating out of the avoidance hole 22121.

Specifically, in the present embodiment, the insulating sleeve 2211 and the insulating cover 2212 are made of nylon.

Further, referring to fig. 8-11, the conductive male connector 222 includes a connecting section and a plugging section, and the plugging section is used for plugging with the female connector assembly 62; one end of the connecting section is provided with a containing hole 2222, and the circumferential side surface of the connecting section is provided with a locking hole 2221 communicated with the containing hole 2222; one end of the first wire body 1 is inserted into the receiving hole 2222, and the fixed connection between the first wire body 1 and the conductive male head 222 is completed by locking a set screw 2223 into the locking hole 2221. This design allows the conductive male 222 to be better placed into the insulating sleeve 2211 during assembly.

Further, referring to fig. 9 and 10, the female explosion-proof connector 20 includes a second wire body 5 and a second connector assembly 6 that are electrically connected, the second connector assembly 6 includes a third connector 61 and a female connector assembly 62, a second cavity 611 is disposed in the third connector 61, the second cavity 611 is communicated with the outside through two ends of the third connector 61, the female connector assembly 62 is disposed in the second cavity 611, the second wire body 5 penetrates into the second cavity 611 from one end of the third connector 61 to be connected with the female connector assembly 62, and a third gap 7 is formed between the female connector assembly 62 and an inner wall of the second cavity 611; the outer surface of one end of the third connecting piece 61 far away from the second wire body 5 is provided with a fourth thread section 612.

It can be appreciated that the embodiment of the present utility model further provides a female explosion-proof plug connector 20, which is configured to cooperate with the male explosion-proof plug connector 10, and the explosion-proof performance of the female explosion-proof plug connector 10 is improved by providing an explosion-proof structure on the second connector assembly 6; specifically, let female explosion-proof plug 20 set up in first clearance 3 earlier, then form second clearance 4 through between first nut 23 and the first cooperation section 213, then through forming third clearance 7 between female head subassembly 62 and the inner wall of second cavity 611, let the one end of first connecting piece 21 be located third clearance 7, form tang explosion-proof face in the junction of male explosion-proof plug 10 and female explosion-proof plug 20 through the cooperation of several layers, the first nut 23 that the rethread is located first connecting piece 21 outermost layer realizes the screw thread cooperation of male explosion-proof plug 10 and female explosion-proof plug 20, and form the screw thread explosion-proof face with the skin of tang explosion-proof face, through tang explosion-proof face and screw thread explosion-proof stack cooperation can greatly improve the explosion-proof performance of male explosion-proof plug 10, realize the parcel to male head subassembly 22 and female head subassembly 62 and cut off, avoid spark, electric arc and static etc. that it produced to enter into high-risk environment.

Further, a fifth thread section 613 is arranged at one end of the third connecting piece 61 close to the second wire body 5; the second joint assembly 6 further includes a gasket assembly 63 and a second insulating filler 64, the gasket assembly 63 being located between the female assembly 62 and the second insulating filler 64.

The fifth thread 613 is used to cooperate with a thread on an external device.

As a possible embodiment, the explosion-proof plug assembly 100 is used to cooperate with the screw member of the lamp inlet and outlet and to abut the second insulating filler 64. Specifically, the lamp is an explosion-proof lamp, a standard explosion-proof inlet is arranged on the lamp, the inlet comprises a threaded section and a unthreaded hole section which are connected, and the explosion-proof lamp is matched with the fifth threaded section 613 through the threaded section.

Further, the gasket assembly 63 includes an elastic gasket and a normal gasket, and the elastic gasket is located between the female assembly 62 and the normal gasket.

Further, please refer to fig. 1-10, the explosion-proof structure and principle of the explosion-proof plug assembly 100 in this embodiment are briefly described as follows: an explosion-proof plug assembly 100 comprises a male explosion-proof plug 10 and a female explosion-proof plug 20; the male explosion-proof plug connector 10 comprises a first wire body 1 and a first connector assembly 2 which are electrically connected, the first connector assembly 2 comprises a first connecting piece 21 and a male assembly 22, a first cavity 211 is arranged in the first connecting piece 21, the first cavity 211 is communicated with the outside through two ends of the first connecting piece 21, the male assembly 22 is arranged in the first cavity 211, the first wire body 1 penetrates into the first cavity 211 from one end of the first connecting piece 21 to be connected with the male assembly 22, and a first gap 3 is formed between the end face of the male assembly 22 and the inner wall of the first cavity 211;

The first joint assembly 2 further comprises a first nut 23, the outer wall of the first connecting piece 21 comprises a first smooth section 212 and a first matching section 213 which are connected, the first nut 23 is slidably arranged on the first smooth section 212, and when the internal thread position of the first nut 23 is matched with the first matching section 213, a second gap 4 is formed between the first nut 23 and the first matching section 213;

the female explosion-proof plug connector 20 comprises a second wire body 5 and a second connector assembly 6 which are electrically connected, the second connector assembly 6 comprises a third connecting piece 61 and a female connector assembly 62, a second cavity 611 is arranged in the third connecting piece 61, the second cavity 611 is communicated with the outside through two ends of the third connecting piece 61, the female connector assembly 62 is arranged in the second cavity 611, the second wire body 5 penetrates into the second cavity 611 from one end of the third connecting piece 61 to be connected with the female connector assembly 62, and a third gap 7 is formed between the female connector assembly 62 and the inner wall of the second cavity 611; the outer surface of one end of the third connecting piece 61 far away from the second wire body 5 is provided with a fourth thread section 612;

the male assembly 22 is connected to or disconnected from the female assembly 62 by a plug, and the fourth threaded section 612 is threadedly engaged with the first nut 23.

When the two are connected, the female head assembly 62 is positioned in the first gap 3, and one end of the first connecting piece 21 is positioned in the third gap 7; one end of the third connecting member 61 is located in the second gap 4.

The female explosion-proof plug 20 is firstly arranged in the first gap 3, then a second gap 4 is formed between the first nut 23 and the first matching section 213, then a third gap 7 is formed between the female head assembly 62 and the inner wall of the second cavity 611, one end of the first connecting piece 21 is positioned in the third gap 7, a seam allowance explosion-proof surface is formed at the joint of the male explosion-proof plug 10 and the female explosion-proof plug 20 through the matching of several layers, the male explosion-proof plug 10 and the female explosion-proof plug 20 are realized through the first nut 23 positioned at the outermost layer of the first connecting piece 21, a thread explosion-proof surface is formed with the outer layer of the seam allowance explosion-proof surface, the explosion-proof performance of the male explosion-proof plug 10 can be greatly improved through the overlapping and matching of the seam allowance explosion-proof surface and the thread explosion-proof surface, the wrapping and blocking of the male head assembly 22 and the female head assembly 62 are realized, and the occurrence of sparks, electric arcs, static electricity and the like are prevented from entering into a high-risk environment.

Compared with the prior art, the utility model provides the male anti-explosion plug connector, the female anti-explosion plug connector and the anti-explosion plug assembly, which have the following advantages:

1. according to the male anti-explosion plug connector provided by the embodiment of the utility model, the anti-explosion performance of the male anti-explosion plug connector is improved by arranging the anti-explosion structure on the first joint component; specifically, first clearance is formed between the end face of the male component and the inner wall of the first cavity, so that the female anti-explosion plug connector is arranged in the first clearance, then a second clearance is formed between the first nut and the first matching section and used for forming a spigot anti-explosion surface when being matched with the female anti-explosion plug connector, then the first nut positioned at the outermost layer of the first connecting piece is used for realizing threaded matching of the male anti-explosion plug connector and the female anti-explosion plug connector, the thread anti-explosion surface is formed with the outer layer of the spigot anti-explosion surface, the anti-explosion performance of the male anti-explosion plug connector can be greatly improved through overlapping and matching of the spigot anti-explosion surface and the thread anti-explosion surface, wrapping and blocking of the male component and the female component are realized, and sparks, electric arcs, static electricity and the like generated by the male anti-explosion plug connector are prevented from entering an external high-risk environment.

2. The first joint assembly further comprises a blocking assembly, and the end part of the first joint assembly is further sealed in a way of arranging the blocking assembly, so that sparks, electric arcs, static electricity and the like generated by the male head assembly and the female head assembly can be prevented from entering an external high-risk environment from the end part of the first connecting piece; moreover, the first connecting piece and the second connecting piece are in tight threaded fit through the first threaded section and the second threaded section which are respectively arranged, a threaded explosion-proof surface is further formed at the joint of the first connecting piece and the plugging component, and spark, electric arc, static electricity and the like generated by the male component and the female component can be better prevented from entering an external high-risk environment from the joint of the first connecting piece and the second connecting piece.

3. The plugging assembly comprises the first insulating filling piece, the insulating filling piece is used for plugging the channel, the better effect of isolating sparks, electric arcs and static electricity can be achieved, the insulating piece is propped by the propping piece, the first insulating filling piece can be prevented from falling off in the using process, the working stability of the male explosion-proof plug connector is improved, and the service life of the male explosion-proof plug connector is prolonged.

4. According to the first structural component provided by the embodiment of the utility model, the first sealing groove is formed on the second smooth section or between the second smooth section and the second threaded section, the first sealing element is arranged in the first insulating filling element sealing groove, namely, the sealing structure is additionally arranged outside the threaded isolating section, so that the first connecting element and the second connecting element can be effectively ensured to keep better tight threaded fit, and the flange plate I can be matched with the second smooth section to form a step to provide support for one end of the first connecting element, and the excessive threaded fit of the first connecting element and the second connecting element is avoided; meanwhile, the flange facilitates the staff to use tools such as an external wrench to rapidly rotate the second connecting piece, the assembly efficiency of the male explosion-proof plug connector is improved, and even if the wrench is not used, the flange nut structure can better provide an acting point, so that the staff can conveniently rotate the second connecting piece manually.

5. According to the first connecting piece and the second connecting piece, the additional second smooth section and the third smooth section are additionally arranged, and the fixing holes are correspondingly formed, so that the first connecting piece and the second connecting piece can be conveniently fixed tightly through the fixing holes by using parts such as the threaded pieces, the first connecting piece and the second connecting piece can be prevented from rotating relatively in the circumferential direction after being assembled, tight threaded fit between the first connecting piece and the second connecting piece is better ensured, and further the explosion-proof capacity of a threaded partition section can be ensured to be continuously effective.

6. The second channel is further internally provided with the pressing ring, and the pressing ring is arranged between the abutting part and the first insulating filling part, so that the abutting part can extrude the first insulating filling part by means of the pressing ring, the first insulating filling part can fill the second channel better, and the blocking capacity of the blocking assembly is further improved.

7. The insulating assembly is arranged outside the male head assembly, so that conduction between the conductive male head and the first connecting piece, the second connecting piece and other parts is avoided, and the safety performance of the male head explosion-proof plug connector is improved.

8. The embodiment of the utility model also provides a female anti-explosion plug connector, which is used for being matched with the male anti-explosion plug connector, and the anti-explosion performance of the female anti-explosion plug connector when being matched with the male anti-explosion plug connector is improved by arranging an anti-explosion structure on the second joint component; specifically, let female first explosion-proof plug connector set up in first clearance earlier, then through first nut with form the second clearance between the first cooperation section, then through at female first subassembly with form the third clearance between the inner wall of second cavity, let the one end of first connecting piece be located the third clearance, form tang explosion-proof face in the junction of male first explosion-proof plug connector and female first explosion-proof plug connector through the cooperation of several layers, the first nut that the rethread is located first connecting piece outermost layer realizes the screw thread cooperation of male first explosion-proof plug connector and female first explosion-proof plug connector to form the screw thread explosion-proof face with the skin of tang explosion-proof face, can greatly improve the explosion-proof performance of male first explosion-proof plug connector through tang explosion-proof face and screw thread explosion-proof stack cooperation, realize the parcel to male first subassembly and female first subassembly and cut off, spark, electric arc and static etc. that avoid its production enter into external high-risk environment.

9. The embodiment of the utility model also provides an explosion-proof plug assembly, which comprises the male explosion-proof plug and the female explosion-proof plug, and has the beneficial effects of the male explosion-proof plug and the female explosion-proof plug, and the description is omitted herein.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the utility model, but any modifications, equivalents, improvements, etc. within the principles of the present utility model should be included in the scope of the present utility model.

Claims (10)

1. The utility model provides a public first explosion-proof plug connector which characterized in that: the first connector assembly comprises a first connecting piece and a male connector assembly, a first cavity is arranged in the first connecting piece, the first cavity is communicated with the outside through two ends of the first connecting piece, the male connector assembly is arranged in the first cavity, the first wire penetrates into the first cavity from one end of the first connecting piece and is connected with the male connector assembly, and a first gap is formed between the end face of the male connector assembly and the inner wall of the first cavity;

the first joint assembly further comprises a first nut, the outer wall of the first connecting piece comprises a first smooth section and a first matching section which are connected, the first nut is slidably arranged on the first smooth section, and when the internal thread position of the first nut is matched with the first matching section, a second gap is formed between the first nut and the first matching section.

2. The male explosion-proof plug as defined in claim 1, wherein: a first channel is arranged in the first cavity, and a first thread section is arranged in the first channel;

the first joint assembly further comprises a plugging assembly, the plugging assembly comprises a second connecting piece, and one end of the second connecting piece is provided with a second thread section matched with the first thread section.

3. The male explosion-proof plug as defined in claim 2, wherein: the second connecting piece is internally provided with a second channel communicated with the first channel, one end, away from the first connecting piece, of the second channel is provided with a first insulating filling piece, and one end, away from the first connecting piece, of the second connecting piece is provided with a supporting piece.

4. A male explosion-proof plug as defined in claim 3, wherein: the second connecting piece comprises a second threaded section, a second smooth section, a flange plate and a third threaded section which are connected in sequence; a first sealing groove is formed in the second smooth section or between the second smooth section and the second threaded section, and a first sealing element is arranged in the first insulating filling element sealing groove; one end of the first connecting piece is close to or abutted against the flange plate; the abutting piece is in threaded fit with the third threaded section and abuts against one end of the second channel.

5. The male explosion-proof plug as defined in claim 4, wherein: and a third smooth section matched with the second smooth section is arranged at one end of the first channel, which is close to the second connecting piece, and at least one fixing hole is formed in the second smooth section.

6. A male explosion-proof plug as defined in claim 3, wherein: a pressing ring is further arranged in the second channel, and the abutting piece abuts against the first insulating filling piece through the pressing ring; and a limiting step is arranged in the second channel, and one end, far away from the compression ring, of the first insulating filling piece abuts against the limiting step.

7. The male explosion-proof plug as defined in claim 1, wherein: the male component comprises an insulating component and a conductive male; the insulating assembly comprises an insulating sleeve and an insulating cover, a penetrating gap channel is formed in the insulating sleeve, the conductive male head is arranged in the gap channel, a gap hole is formed in the insulating cover, the section radius of the gap hole is smaller than that of the conductive male head, and the first wire body is electrically connected with the conductive male head in the gap channel through the gap hole.

8. A female explosion-proof plug for mating with a male explosion-proof plug according to any one of claims 1 to 7, characterized in that: the first connector comprises a first wire body and a first connector assembly which are electrically connected, wherein the first connector assembly comprises a first connecting piece and a first female connector assembly, a first cavity is arranged in the first connecting piece, the first cavity is communicated with the outside through two ends of the first connecting piece, the first female connector assembly is arranged in the first cavity, the first wire body penetrates into the first cavity from one end of the first connecting piece and is connected with the first female connector assembly, and a first gap is formed between the first female connector assembly and the inner wall of the first cavity; and a fourth thread section is arranged on the outer surface of one end of the third connecting piece, which is far away from the second wire body.

9. The female explosion-proof plug connector of claim 8, wherein: a fifth thread section is arranged at one end, close to the second wire body, of the third connecting piece; the second joint assembly further includes a washer assembly and a second insulating filler, the washer assembly being located between the female assembly and the second insulating filler.

10. An explosion-proof grafting subassembly, its characterized in that: the anti-explosion plug connector comprises a male anti-explosion plug connector and a female anti-explosion plug connector; the male explosion-proof plug connector comprises a first wire body and a first connector assembly which are electrically connected, the first connector assembly comprises a first connecting piece and a male connector assembly, a first cavity is arranged in the first connecting piece, the first cavity is communicated with the outside through the two ends of the first connecting piece, the male connector assembly is arranged in the first cavity, the first wire body penetrates into the first cavity from one end of the first connecting piece and is connected with the male connector assembly, and a first gap is formed between the end face of the male connector assembly and the inner wall of the first cavity;

the first joint assembly further comprises a first nut, the outer wall of the first connecting piece comprises a first smooth section and a first matching section which are connected, the first nut is slidably arranged on the first smooth section, and when the internal thread position of the first nut is matched with the first matching section, a second gap is formed between the first nut and the first matching section;

The female anti-explosion plug connector comprises a second wire body and a second connector assembly which are electrically connected, the second connector assembly comprises a third connecting piece and a female connector assembly, a second cavity is arranged in the third connecting piece, the second cavity is communicated with the outside through two ends of the third connecting piece, the female connector assembly is arranged in the second cavity, the second wire body penetrates into the second cavity from one end of the third connecting piece to be connected with the female connector assembly, and a third gap is formed between the female connector assembly and the inner wall of the second cavity; a fourth thread section is arranged on the outer surface of one end, far away from the second wire body, of the third connecting piece;

the male head assembly is connected with or disconnected from the female head assembly through plugging, and the fourth thread section is in threaded fit with the first nut;

when the two are connected, the female head assembly is positioned in the first gap, and one end of the first connecting piece is positioned in the third gap; one end of the third connecting piece is positioned in the second gap.