CN209786259U - Mining explosion-proof cable connector - Google Patents

Abstract

The utility model discloses a mining flame-proof type cable connector relates to the connector, and its technical scheme main points include plug subassembly and socket subassembly, socket subassembly includes socket base, sets up in the inside socket insulator of socket base, sets up in the inboard protruding needle of inserting soon of socket insulator, is fixed in the connecting rod at the inboard middle part of socket insulator, presss from both sides the socket between socket insulator and socket base are inside to block up the circle, wear to locate socket base and keep away from plug subassembly's one end middle part and with connecting rod threaded connection's fastening screw. Socket subassembly overall structure is firm, can not become flexible because of frequent plug, only need twist during the dismouting simultaneously change fastening screw can, it is convenient fast.

Description

Mining explosion-proof cable connector

Technical Field

The utility model relates to a connector, in particular to mining flame-proof type cable connector.

Background

The connector is also called a connector and is used for connecting two active devices and transmitting current or signals. The connector forms and structures are also various according to applications and application environments. The mining explosion-proof cable connector is mainly used in coal mine underground and in the environment with explosive gas mixture of coal dust, methane and the like around, is used as a connecting device between a power cable and explosion-proof electrical switch equipment, and can also be used as an information communication cable connector in the coal mine underground.

Chinese patent publication No. CN104466447A discloses a multi-core mining flameproof cable connector, which includes a plug component and a socket component, wherein the socket component includes a flameproof socket housing component, a porous socket insulating member is provided inside the socket component, and an insert sleeve component is provided in each socket insulating member; the plug component comprises a flameproof plug shell component, a porous plug insulating component is arranged in the flameproof plug shell component, an inserting rod component is arranged in each plug insulating component, and the inserting rod components are matched with the inserting sleeve components, so that the inserting rod components are just inserted into the inserting sleeve components.

Because the plug component is required to be inserted and pulled out frequently in the use process, the plug rod component is pulled out from the plug bush component, and certain resistance needs to be overcome when the plug rod component is pulled out, so that the stability of the structures of the plug component and the socket component is very important. Above-mentioned socket part compresses tightly insulating clamp plate through the turnbuckle, realizes inner structure's stability, but turnbuckle threaded connection is inboard in the shell subassembly, and it is very troublesome to twist in and screw out the process, and dismouting socket part is wasted time and energy, remains to improve.

SUMMERY OF THE UTILITY MODEL

To the technical defect, the utility model aims at providing a mining flame-proof type cable connector, the dismouting socket subassembly of being convenient for.

In order to achieve the above purpose, the utility model provides a following technical scheme:

The mining explosion-proof cable connector comprises a plug component and a socket component, wherein the socket component comprises a socket base body, a socket insulator arranged in the socket base body, a quick-insertion convex needle arranged on the inner side of the socket insulator, a connecting rod fixed in the middle of the inner side of the socket insulator, a socket blocking ring clamped between the socket insulator and the inside of the socket base body, and a fastening screw penetrating through the middle of one end, far away from the plug component, of the socket base body and connected with the connecting rod in a threaded mode.

By adopting the technical scheme, when the socket assembly needs to be assembled, the socket blocking ring is firstly placed from one end of the socket base body towards the plug assembly, then the socket insulator inserted with the quick-insertion convex needle is placed, finally the fastening screw is screwed into the connecting rod, the socket insulator is limited by the fastening screw and cannot fall out of the socket base body, and the socket blocking ring is clamped between the socket insulator and the socket base body. The socket assembly is stable in overall structure and cannot be loosened due to frequent plugging and unplugging. Meanwhile, only the fastening screw needs to be screwed when the socket assembly is disassembled and assembled, and the fastening screw can be easily screwed by using common tools, so that the disassembly and the assembly are quick and convenient.

The utility model discloses further set up to: socket base body one side threaded connection has the fastening screw who supports socket insulator, socket insulator is provided with the draw-in groove that supplies fastening screw card to go into, hexagonal groove in fastening screw tip has been seted up, fastening screw threaded connection has fastening nut, be provided with first spring washer between fastening nut and the socket base body, the socket base body is provided with the holding tank that supplies fastening nut card to go into.

Through adopting above-mentioned technical scheme, the socket insulator receives fastening screw's compressing tightly and is difficult to remove, improves the fixed effect to the socket insulator on the one hand, strengthens socket subassembly overall structure stability, and on the other hand fixes in advance the socket insulator, and the fastening screw of being convenient for twists the connecting rod.

The utility model discloses further set up to: the socket base comprises a sleeve seat sleeved outside the socket insulator and the socket blocking ring, one end, far away from the plug assembly, of the sleeve seat is connected with a fixed seat tightly attached to the socket blocking ring, the inner side of the fixed seat is connected with a connecting ring, the inner side of the connecting ring is connected with a connecting strip for a fastening screw rod to penetrate through, a second spring washer is arranged between the fastening screw head and the connecting strip, and the fastening screw rod is sleeved with a sleeve pipe clamped between the socket insulator and the connecting strip.

By adopting the technical scheme, the socket assembly is high in overall structural stability; the distance between the connecting strip and the socket insulator is limited by the sleeve, and the trouble that the socket insulator is cracked due to the fact that the fastening screw is excessively screwed is prevented.

The utility model discloses further set up to: the fixing seat is characterized in that fixing holes are formed in four corners of the fixing seat, and arc-shaped baffle plates are connected to the fixing seat in the positions of the fixing holes.

by adopting the technical scheme, the socket base body can be fixed at the rack of the electrical cabinet; the arc-shaped baffle plate plays a role in strengthening structural strength between the fixed seat and the socket seat body, and the trouble of breakage of the fixed seat is avoided.

The utility model discloses further set up to: the plug assembly comprises a plug base body inserted into the socket base body, a plug insulator arranged inside the plug base body, a quick-insertion concave needle arranged inside the plug insulator, a plug blocking ring tightly attached to one side, deviating from the socket assembly, of the plug insulator, a plug rear body arranged on one side, deviating from the socket assembly, of the plug blocking ring and in threaded connection with the plug base body, a pressing cap in threaded connection with the plug rear body, a pressing ring arranged between the pressing cap and the inside of the plug rear body and a sealing ring, wherein the pressing cap comprises a connecting cap in threaded connection with the plug rear body, a movable pressing wire base, a fixed pressing wire base fixedly connected with the connecting cap and a pressing wire bolt used for connecting the movable pressing wire base and the fixed pressing wire base.

Through adopting above-mentioned technical scheme, during plug subassembly assembly, insert the plug insulator, insert concave needle, plug ring soon in proper order toward the plug connector internal body, twist the plug afterbody again, put into sealing ring and clamping ring after in proper order toward the plug afterbody in proper order after that, screw up the gland at last, it is convenient fast to assemble.

The utility model discloses further set up to: an inner cover is arranged between the plug blocking ring and the plug insulator, a conductive rod is arranged in the middle of the inner side of the plug insulator, the conductive rod is connected with the inner cover through a grounding plug, and the conductive rod is connected with the connecting rod through a conductive plug.

Through adopting above-mentioned and scheme, fastening screw, connecting rod, conductive plug, conducting rod, ground connection plug, inner cup form electrically conductive route, play the effect of ground protection.

The utility model discloses further set up to: the connecting rod outer wall is provided with the ring channel, socket insulator inboard is provided with the stopper of card income ring channel, the conducting rod outer wall is provided with ring groove, plug insulator inboard is provided with the annular lug of card income ring groove.

Through adopting above-mentioned technical scheme, after installation conducting rod and connecting rod, stopper and annular lug are moulded plastics and are formed, form good fixed effect to it.

the utility model discloses further set up to: the socket comprises a socket body and is characterized in that a first connecting seat is connected to the outer side of the socket body, a second connecting seat is connected to the outer side of the plug body, the first connecting seat is connected with the second connecting seat through a connecting bolt, and the first connecting seat is positioned with the second connecting seat through a positioning pin.

Through adopting above-mentioned technical scheme, the connection of socket pedestal and plug pedestal is inseparable and the dismouting is quick, and the locating pin can realize quick location to socket pedestal and plug pedestal, avoids the trouble of misplugging.

The utility model discloses further set up to: the fast inserting convex needle comprises a signal convex needle, a grounding convex needle and a conductive convex needle, and the fast inserting concave needle comprises a signal concave needle for inserting the signal convex needle, a grounding concave needle for inserting the grounding convex needle and a conductive concave needle for inserting the conductive convex needle.

The utility model discloses further set up to: the quick-plug connector is characterized in that a first sealing groove is formed in the outer side of the quick-plug male pin, a first sealing ring is arranged at the position of the first sealing groove, a second sealing groove is formed in the outer side of the quick-plug female pin, a second sealing ring is arranged at the position of the second sealing groove, a third sealing groove is formed in the inner side of the socket base body, a third sealing ring for compressing a socket insulator is arranged at the position of the third sealing groove, a fourth sealing groove and a sixth sealing groove are formed in the outer side of the plug base body, a fourth sealing ring for abutting against the socket base body is arranged at the position of the fourth sealing groove, a fifth sealing ring for abutting against the plug insulator is arranged at the position of the fifth sealing groove, and a sixth sealing ring for.

Through adopting above-mentioned technical scheme, the whole leakproofness of connector is good.

To sum up, the utility model discloses following beneficial effect has:

1. Through the arrangement of the fastening screws, the socket assembly is stable in structure and easy and convenient to assemble and disassemble;

2. the socket assembly and the plug assembly are good in overall sealing performance and firm in connection, and are suitable for environments such as mines and the like, and the explosion-proof performance is good.

Drawings

FIG. 1 is a schematic structural view of an embodiment;

FIG. 2 is a schematic front view of the embodiment;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic structural view of the jack assembly of FIG. 3;

FIG. 5 is a schematic structural view of the plug assembly of FIG. 3;

FIG. 6 is a schematic structural diagram of the embodiment from another perspective;

FIG. 7 is an enlarged schematic view of region B of FIG. 6;

FIG. 8 is an exploded view of the receptacle assembly of the embodiment;

Fig. 9 is an exploded view of the plug assembly of the embodiment.

Description of reference numerals: 1. a plug assembly; 101. a plug base body; 1011. a fourth seal groove; 1012. a fifth seal groove; 1013. a sixth seal groove; 102. a plug insulator; 1021. an annular projection; 103. quickly inserting the concave needle; 1031. a signal concave needle; 1032. a grounding concave needle; 1033. a conductive female pin; 1034. a second seal groove; 104. plugging a plug ring; 105. an inner cover; 106. a plug rear body; 107. pressing the cap; 1071. a connecting cap; 1072. a movable wire pressing seat; 1073. fixing a wire pressing seat; 1074. a wire pressing bolt; 108. pressing a ring; 109. a seal ring; 110. a conductive rod; 1101. an annular neck; 111. a ground plug; 112. a second connecting seat; 113. a second seal ring; 114. a fourth seal ring; 115. a fifth seal ring; 116. a sixth seal ring; 2. a receptacle assembly; 21. a socket base body; 211. a sleeve seat; 2111. accommodating grooves; 2112. a third seal groove; 212. a fixed seat; 2121. a fixing hole; 213. a connecting ring; 214. a connecting strip; 215. an arc-shaped baffle plate; 216. a first connecting seat; 22. a socket insulator; 221. a card slot; 222. a limiting block; 23. quickly inserting the convex needle; 231. a signal convex pin; 232. a grounding convex pin; 233. a conductive convex pin; 234. a first seal groove; 24. a connecting rod; 241. an annular groove; 25. a socket blocking ring; 26. fastening screws; 27. fastening a screw rod; 271. an inner hexagonal groove; 272. fastening a nut; 28. a conductive plug; 29. a sleeve; 3. a connecting bolt; 4. a first spring washer; 5. a second spring washer; 6. a first seal ring; 7. a third seal ring; 8. and a positioning pin.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A mining explosion-proof cable connector is shown in figure 1 and comprises a plug component 1 and a socket component 2 which are mutually inserted, wherein the plug component 1 is connected with the socket component 2 through a connecting bolt 3.

As shown in fig. 2 and 3, the socket assembly 2 includes a socket body 21, a socket insulator 22 installed inside the socket body 21, a plurality of quick-insertion pins 23 installed inside the socket insulator 22 in a penetrating manner, a connecting rod 24 fixed inside the socket insulator 22 in a penetrating manner, a socket blocking ring 25 made of an insulating material and clamped between the socket insulator 22 and the inside of the socket body 21, a fastening screw 26 installed in a penetrating manner in a middle portion of one end of the socket body 21 far away from the plug assembly 1 and in threaded connection with the connecting rod 24, and a conductive plug 28 connected with one end of the connecting rod 24 far away from the fastening screw 26 in a threaded manner. The quick-insertion convex pin 23 is inserted from the socket insulator 22 to one side of the socket blocking ring 25, the socket blocking ring 25 blocks the insertion opening of the socket insulator 22, and the socket blocking ring 25 is designed to be hollow so as to allow a line to penetrate through.

As shown in fig. 1 and 4, the socket base 21 includes a socket 211 sleeved outside the socket insulator 22 and the socket blocking ring 25 and used for inserting the plug assembly 1, one end of the socket 211 far away from the plug assembly 1 is fixedly connected with a fixed seat 212 tightly attached to the socket blocking ring 25, one end of the fixed seat 212 far away from the socket 211 is fixedly connected with a connection ring 213, the inner side of the connection ring 213 is fixedly connected with a connection strip 214 radially arranged and provided with a middle portion for a rod portion of the fastening screw 26 to pass through, a sleeve 29 sleeved outside the fastening screw 26 is clamped between the socket insulator 22 and the connection strip 214, and a second spring washer 5 is clamped between a head portion of the fastening screw 26 and the connection strip 214. The sleeve 29 limits the distance between the connecting bar 214 and the socket insulator 22, and prevents the trouble that the fastening screw 26 is excessively screwed to cause cracking of the socket insulator 22. The outer wall of the middle part of the connecting rod 24 is provided with an annular groove 241, the inner side of the socket insulator 22 is injection molded with a limiting block 222 clamped into the annular groove 241, and the connecting rod 24 is limited by the limiting block 222 and moves together with the socket insulator 22.

As shown in fig. 1 and 4, the inner edge of the fixing seat 212 is circular and has an inner diameter equal to the inner diameter of the connection ring 213 and smaller than the inner diameter of the socket 211, so that both the socket blocking ring 25 and the socket insulator 22 need to be inserted from the end of the socket 211 far from the connection ring 213, and the socket blocking ring 25 abuts against the fixing seat 212 and cannot pass through. After the fastening screw 26 is tightened, the socket insulator 22 is limited by the fastening screw 26 and cannot fall out of the socket base 21, and the whole structure is stable and not easy to loosen. The outer edge of the fixing base 212 is square and protrudes relative to the sleeve base 211, and the fixing holes 2121 are formed in four corners of the fixing base 212 in a penetrating manner, so that the socket base body 21 can be fixed to the rack of the electrical cabinet through bolts. The fixing base 212 is fixedly connected with two arc-shaped baffles 215 at each fixing hole 2121, and the arc-shaped baffles 215 are fixedly connected with the sleeve base 211. The two curved baffles 215 together form a figure-of-eight and the side facing away from the socket 211 is spaced further apart than the side facing towards the socket 211. Can supply bolt head card to go into between two cowl 215, effectively prevent that the bolt from receiving the mechanical damage that external force impact caused, and can not deposit coal dust and ponding. Meanwhile, the structural strength between the fixing seat 212 and the socket base 21 is improved, and the trouble of breaking the fixing seat 212 is avoided.

as shown in fig. 6 and 7, a fastening screw 27 extending into the socket insulator 22 is screwed into one side of the socket 211, and the socket insulator 22 is provided with a locking groove 221 into which the fastening screw 27 is locked. One end of the card slot 221 facing the fixed seat 212 is communicated with the outside, so that the socket insulator 22 can be directly inserted into the sleeve seat 211 and the fastening screw 27 is clamped into the card slot 221. The fastening screw 27 has a hexagonal socket 271 and a fastening nut 272 screwed to an end of the socket 211, the first spring washer 4 is clamped between the fastening nut 272 and the socket 211, and the socket housing 21 has a receiving groove 2111 for the fastening nut 272 to be inserted into. The socket insulator 22 is pre-fixed during assembly to facilitate the tightening of the fastening screw 26 into the connecting rod 24.

As shown in fig. 4 and 8, when the receptacle assembly 2 needs to be assembled, the receptacle plug 25 is first inserted from the receptacle body 21 toward one end of the plug assembly 1, then the receptacle insulator 22 with the fast-insertion male pin 23 inserted therein is inserted, then the fastening screw 27 is screwed to abut against the receptacle insulator 22 so that the receptacle insulator 22 does not slide accidentally, then the sleeve 29 is placed between the connecting bar 214 and the receptacle insulator 22, and finally the fastening screw 26 is threaded through the connecting bar 214 and the sleeve 29 and then screwed into the connecting bar 24.

As shown in fig. 3 and 5, the plug assembly 1 includes a plug housing 101 inserted into the socket housing 21, a plug insulator 102 installed inside the plug housing 101, a plurality of quick-insertion female pins 103 installed inside the plug insulator 102 in a penetrating manner, a conductive rod 110 installed in the middle of the inner side of the plug insulator 102 in a penetrating manner, a plug collar 104 made of an insulating material and closely attached to a side of the plug insulator 102 away from the socket assembly 2, an inner cover 105 tightly attached to the plug block ring 104 on the side away from the plug insulator 102, a ground plug 111 screwed to the middle of the inner cover 105 on the side toward the plug insulator 102 and inserted into the conductive rod 110, a plug rear body 106 screwed to the plug housing 101 and pressing the inner cover 105, a press cap 107 screwed to one end of the plug rear body 106 away from the socket housing 21, a press ring 108 clamped between the press cap 107 and the inside of the plug rear body 106, and a seal ring 109. The seal ring 109 is located on the side of the pressing ring 108 facing the inner cover 105, the quick-insertion female pin 103 is inserted from the plug insulator 102 toward the side of the inner cover 105, and the plug block ring 104 closes the insertion opening of the plug insulator 102. The plug block ring 104 and the inner cover 105 are designed to be hollow so as to facilitate the insertion of the circuit. A plurality of reinforcing ribs are uniformly distributed on the periphery of the outer wall of the plug rear body 106, so that the thickness of the plug rear body 106 is reduced under the condition of ensuring the strength, and the defects of shrinkage cavity, meat deficiency and the like in the casting process are effectively avoided. While reducing the weight and cost of the plug rear body 106 and facilitating handling.

The outer wall of the inner cover 105 abuts against the inner wall of the plug seat body 101, a concave cavity for the wire to be clamped is formed at one end of the inner cover 105, which is far away from the grounding plug 111, and the side wall of the concave cavity is communicated with a pressing screw hole for the inner hexagonal fastening screw to be clamped. When the plug assembly 1 and the socket assembly 2 are connected, the conductive plug 28 is inserted into the conductive rod 110, so that the inner cover 105, the grounding plug 111, the conductive rod 110, the conductive plug 28, the connecting rod 24, and the set screw 26 form a conductive path to protect the ground. The outer wall of the middle part of the conducting rod 110 is provided with an annular clamping groove 1101, and an annular bump 1021 clamped in the annular clamping groove 1101 is formed on the inner side of the plug insulator 102 in a subsequent injection molding mode.

As shown in fig. 5 and 9, when the plug assembly 1 is assembled, the plug insulator 102, the quick-insertion female pin 103, the plug blocking ring 104 and the inner cover 105 are inserted into the plug base 101 in sequence, the plug rear body 106 is screwed until the inner cover 105 is pressed, the sealing ring 109 and the pressing ring 108 are inserted into the plug rear body 106 in sequence, and the pressing cap 107 is screwed down, so that the assembly is fast and convenient.

As shown in fig. 9, the pressing cap 107 includes a connection cap 1071 screwed to the plug rear body 106, a movable pressing line holder 1072, a fixed pressing line holder 1073 fixedly connected to the connection cap 1071, and two pressing line bolts 1074 for connecting the movable pressing line holder 1072 and the fixed pressing line holder 1073. The cross-section of the connection cap 1071 is L-shaped and the outer side is regular polygon, thereby facilitating screwing. Activity line ball seat 1072 and fixed line ball seat 1073 all are the arc and hold-down cable, and activity line ball seat 1072 both ends supply line ball bolt 1074 to pass, fixed line ball seat 1073 both ends and line ball bolt 1074 threaded connection.

As shown in fig. 1 and 3, a square first connecting seat 216 is fixedly connected to the outer side of the socket body 21, and a square second connecting seat 112 tightly attached to the first connecting seat 216 is fixedly connected to the outer side of the plug body 101. The connecting bolts 3 are provided with three bolts respectively penetrating through three corners of the second connecting seat 112 and respectively connected to three corners of the first connecting seat 216 by threads. The first connecting seat 216 is provided with a hole for the connecting bolt 3 to pass through as a countersunk hole, and the connecting bolt 3 is a hexagon socket head cap screw. The first connecting seat 216 is connected with the second connecting seat 112 through the positioning pin 8 at the other corner, the positioning pin 8 passes through the second connecting seat 112 and is in threaded connection with the first connecting seat 216, and a hole through which the positioning pin 8 passes through the second connecting seat 112 is a round hole.

As shown in fig. 4 and 5, the fast-insertion male pin 23 includes four signal male pins 231, one ground male pin 232, and three conductive male pins 233. The quick-insertion protruding pin 23 protrudes out of the socket insulator 22 toward one end of the plug assembly 1, and protrudes outside the other end to abut against the inside of the socket insulator 22, so as not to penetrate through. Two pressing screw holes for screwing in the inner hexagonal fastening screw rod and tightly clamping the inner cavity wire of the signal convex needle 231 are arranged at the outer sides of the ends of the grounding convex needle 232 and the signal convex needle 231, which are far away from the plug component 1, and a gap is formed between one side of the pressing screw hole and the inner wall of the socket insulator 22 at the end.

The quick-insertion female pin 103 includes a signal female pin 1031 into which the signal male pin 231 is inserted, a ground female pin 1032 into which the ground male pin 232 is inserted, and a conductive female pin 1033 into which the conductive male pin 233 is inserted. One end of the quick-insertion female pin 103, which faces the socket component 2, abuts against a limiting bulge formed in the plug insulator 102, two pressing screw holes for the inner hexagonal fastening screw to be screwed in and abut against and be clamped into a wire in an inner cavity of the plug insulator are formed in the outer side of the other end of the quick-insertion female pin, and a gap is formed between one side of the pressing screw holes and the inner wall of the plug insulator 102 at the end.

the quick-insertion convex needle 23 and the quick-insertion concave needle 103 are both designed by adopting cylindrical structures, two ends of the quick-insertion concave needle 103 are pressed by the plug plugging ring 104 and the limiting bulges in the plug insulator 102, and two ends of the quick-insertion convex needle 23 are pressed by the bulges in the socket insulator 22 and the socket plugging ring 25. Therefore, under the condition of ensuring a certain conductive section of the quick-insertion concave needle 103 and the quick-insertion convex needle 23, the maximum diameters of the quick-insertion concave needle 103 and the quick-insertion convex needle 23 are reduced as much as possible, and the matched insulator is reduced, so that the volumes of the plug assembly 1 and the socket assembly 2 are reduced, the product types are reduced, and the operation and the use are convenient.

As shown in fig. 4 and 5, a first sealing groove 234 is disposed outside the fast-insertion male pin 23, and a first sealing ring 6 abutting against the inner wall of the socket insulator 22 is disposed at the first sealing groove 234. A second sealing groove 1034 is arranged on the outer side of the quick-insertion female pin 103, and a second sealing ring 113 abutting against the inner wall of the plug insulator 102 is arranged at the second sealing groove 1034. A third seal groove 2112 is formed in the inner side of the socket base 21, and a third seal ring 7 abutting against the socket insulator 22 is disposed at the third seal groove 2112. A fourth sealing groove 1011 is arranged on the outer side of the plug base body 101, a fifth sealing groove 1012 and a sixth sealing groove 1013 are arranged on the inner side of the plug base body 101, a fourth sealing ring 114 abutting against the socket base body 21 is arranged at the fourth sealing groove 1011, a fifth sealing ring 115 abutting against the plug insulator 102 is arranged at the fifth sealing groove 1012, and a sixth sealing ring 116 abutting against the plug rear body 106 is arranged at the sixth sealing groove 1013.

The fastening screw 26 and the fastening screw 27 are 8.8 grades; the ground plug 111, the inner lid 105 are made of H62 brass; the socket base body 21, the plug base body 105, the plug rear body 106 and the press cap 107 are all made of stainless steel; the conductive rod 110, the connecting rod 24, and the fastening screw 26 are all made of a conductive metal material.

The working process is as follows:

When the plug assembly 1 needs to be pulled out, the four connecting bolts 3 are screwed out, and then the plug base body 101 is directly pulled out from the socket base body 21, and the socket insulator 22 is tensioned by the fastening screws 26 and is not easy to loosen.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims (10)

1. The utility model provides a mining flame-proof type cable connector, includes plug subassembly (1) and socket subassembly (2), its characterized in that: the socket component (2) comprises a socket base body (21), a socket insulator (22) arranged inside the socket base body (21), a quick-insertion convex needle (23) arranged on the inner side of the socket insulator (22), a connecting rod (24) fixed in the middle of the inner side of the socket insulator (22), a socket blocking ring (25) clamped between the socket insulator (22) and the inside of the socket base body (21), and a fastening screw (26) penetrating through the middle of one end, far away from the plug component (1), of the socket base body (21) and connected with the connecting rod (24) in a threaded mode.

2. the mining flameproof cable connector according to claim 1, characterized in that: socket pedestal (21) one side threaded connection has fastening screw (27) of supporting socket insulator (22), socket insulator (22) are provided with draw-in groove (221) that confession fastening screw (27) card was gone into, hexagonal groove (271) in fastening screw (27) tip was seted up, fastening screw (27) threaded connection has fastening nut (272), be provided with first spring washer (4) between fastening nut (272) and socket pedestal (21), socket pedestal (21) are provided with holding tank (2111) that confession fastening nut (272) card was gone into.

3. the mining flameproof cable connector according to claim 1, characterized in that: socket base body (21) is including cover sleeve seat (211) in socket insulator (22) and socket block ring (25) outside, the one end that plug subassembly (1) was kept away from in sleeve seat (211) is connected with fixing base (212) of hugging closely with socket block ring (25), fixing base (212) inboard is connected with go-between (213), go-between (213) inboard is connected with connecting strip (214) that supply fastening screw (26) pole portion to pass, be provided with second spring washer (5) between fastening screw (26) head and connecting strip (214), fastening screw (26) pole portion cover has sleeve pipe (29) of pressing from both sides tightly between socket insulator (22) and connecting strip (214).

4. The mining flameproof cable connector according to claim 3, characterized in that: fixing holes (2121) are formed in four corners of the fixing seat (212), and arc-shaped baffles (215) are connected to the fixing seat (212) in the fixing holes (2121).

5. The mining flameproof cable connector according to claim 1, characterized in that: the plug assembly (1) comprises a plug base body (101) inserted into a socket base body (21), a plug insulator (102) installed inside the plug base body (101), a quick-insertion concave needle (103) installed inside the plug insulator (102), a plug blocking ring (104) tightly attached to one side, deviating from the socket assembly (2), of the plug insulator (102), a plug rear body (106) arranged on one side, deviating from the socket assembly (2), of the plug blocking ring (104) and in threaded connection with the plug base body (101), a pressing cap (107) in threaded connection with the plug rear body (106), a pressing ring (108) and a sealing ring (109) arranged between the pressing cap (107) and the inside of the plug rear body (106), wherein the pressing cap (107) comprises a connecting cap (1071) in threaded connection with the plug rear body (106), a movable pressing line pressing seat (1072), and a fixed pressing line seat (1073) fixedly connected with the connecting cap, And the wire pressing bolt (1074) is used for connecting the movable wire pressing seat (1072) and the fixed wire pressing seat (1073).

6. The mining flameproof cable connector according to claim 5, characterized in that: an inner cover (105) is arranged between the plug blocking ring (104) and the plug insulator (102), a conductive rod (110) is arranged in the middle of the inner side of the plug insulator (102), the conductive rod (110) is connected with the inner cover (105) through a grounding plug (111), and the conductive rod (110) is connected with the connecting rod (24) through a conductive plug (28).

7. The mining flameproof cable connector according to claim 6, characterized in that: the plug is characterized in that an annular groove (241) is formed in the outer wall of the connecting rod (24), a limiting block (222) clamped into the annular groove (241) is arranged on the inner side of the socket insulator (22), an annular clamping groove (1101) is formed in the outer wall of the conducting rod (110), and an annular bump (1021) clamped into the annular clamping groove (1101) is arranged on the inner side of the plug insulator (102).

8. The mining flameproof cable connector according to claim 5, characterized in that: the outer side of the socket seat body (21) is connected with a first connecting seat (216), the outer side of the plug seat body (101) is connected with a second connecting seat (112), the first connecting seat (216) is connected with the second connecting seat (112) through a connecting bolt (3), and the first connecting seat (216) is positioned with the second connecting seat (112) through a positioning pin (8).

9. The mining flameproof cable connector according to claim 5, characterized in that: the quick-insertion convex pin (23) comprises a signal convex pin (231), a grounding convex pin (232) and a conductive convex pin (233), and the quick-insertion concave pin (103) comprises a signal concave pin (1031) for the signal convex pin (231) to insert, a grounding concave pin (1032) for the grounding convex pin (232) to insert and a conductive concave pin (1033) for the conductive convex pin (233) to insert.

10. The mining flameproof cable connector according to claim 5, characterized in that: a first sealing groove (234) is arranged on the outer side of the fast-insertion male pin (23), a first sealing ring (6) is arranged at the first sealing groove (234), a second sealing groove (1034) is arranged on the outer side of the fast-insertion female pin (103), a second sealing ring (113) is arranged at the second sealing groove (1034), a third sealing groove (2112) is arranged on the inner side of the socket base body (21), a third sealing ring (7) for compressing the socket insulator (22) is arranged at the third sealing groove (2112), a fourth sealing groove (1011) is arranged on the outer side of the plug base body (101), a fifth sealing groove (1012) and a sixth sealing groove (1013) are arranged on the inner side of the plug base body, a fourth sealing ring (114) for abutting against the socket base body (21) is arranged at the fourth sealing groove (1011), and a fifth sealing ring (115) for abutting against the plug insulator (102) is arranged at the fifth sealing, and a sixth sealing ring (116) which abuts against the plug rear body (106) is arranged at the sixth sealing groove (1013).