CN210535882U

CN210535882U - Mining explosion-proof high-voltage cable connector

Info

Publication number: CN210535882U
Application number: CN201921648519.5U
Authority: CN
Inventors: 张海平; 崔志强; 陈硕之; 丁乐朋; 杜泽华; 王伟
Original assignee: DIANGUANG EXPLOSION-PROOF TECHNOLOGY CO LTD; Zhejiang Xutong Intelligent Technology Co ltd
Current assignee: DIANGUANG EXPLOSION-PROOF TECHNOLOGY CO LTD; Zhejiang Xutong Intelligent Technology Co ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-05-15
Anticipated expiration: 2029-09-29

Abstract

The utility model discloses a mining flame-proof type high-voltage cable connector, its technical scheme main points include plug assembly and the socket subassembly of pegging graft each other, plug assembly includes plug housing, sets up in the inside plug insulator of plug housing, plug assembly is still including connecting tailstock, a plurality of pillar that set up between tailstock and plug insulator that plug housing kept away from socket subassembly one end, the tailstock is established the inboard and is connected with a plurality of fixing bases with pillar threaded connection along its circumference interval, plug insulator is fixed along its circumference interval and is worn to be equipped with a plurality of fixed covers just to the pillar, fixed cover department wears to be equipped with set screw, the pillar tip be provided with fixed screw thread fit's fixed slot, plug insulator is provided with the holding chamber that supplies fixed screwhead card to go into. Because set screw is located inside the plug insulator, it is difficult for taking place to rotate in the use, and then guarantees the fixed effect of plug insulator.

Description

Mining explosion-proof high-voltage cable connector

Technical Field

The utility model relates to a connector, in particular to mining flame-proof type high-voltage 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 component is disposed inside the socket component, and a plug bush component is disposed in each socket insulating component; 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.

When the plug insulating part in the cable connector is installed, the plug insulating part is firstly put into the opening at one end of the plug housing component far away from the socket part, and then the plug insulating part is fixed by utilizing the double-screw joint which is tightly propped and fixed by the internal thread connection through the stepped groove structure clamping. However, the double-screw connector is exposed outside, so that the fixing effect of the plug insulating part is poor due to the fact that the double-screw connector is prone to accidentally rotating, and further potential safety hazards exist and need to be improved.

SUMMERY OF THE UTILITY MODEL

To the technical defect, the utility model aims at providing a mining flame-proof type high tension cable connector, the fixed effectual that the plug insulator received is difficult not hard up.

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

the utility model provides a mining flame-proof type high-voltage cable connector, is including plug subassembly and the socket subassembly of pegging graft each other, plug subassembly includes plug housing, sets up in the inside plug insulator of plug housing, plug subassembly is still including connecting tailstock, a plurality of pillar that set up between tailstock and plug insulator that socket subassembly one end was kept away from to plug housing, the tailstock inboard is connected with a plurality of fixing bases with pillar threaded connection along its circumference interval, plug insulator is fixed along its circumference interval and is worn to be equipped with a plurality of fixed covers to the pillar, fixed cover department wears to be equipped with set screw, the pillar tip be provided with set screw thread fit's fixed slot, plug insulator is provided with the holding chamber that supplies fixed screwhead card to go into.

By adopting the technical scheme, the plug insulator is relatively fixed with the support column through the fixing screw, and the support column and the tailstock are relatively fixed, so that the fixed installation of the plug insulator is realized. Because set screw is located inside the plug insulator, it is difficult for taking place to rotate in the use, and then guarantees the fixed effect of plug insulator. When the plug insulator needs to be detached, the plug component and the socket component are separated, the fixing screw is screwed out, and finally, the plug insulator is directly pulled out.

The utility model discloses further set up to: the plug shell is formed with the go-between towards the outer edge of the one end of tailstock, be connected with a plurality of protruding muscle of connection that set up along plug shell circumference interval between go-between and the plug shell, the tailstock is outer along wearing to be equipped with a plurality of connecting bolt around its circumference, the go-between is provided with the spread groove that supplies connecting bolt to twist jointly with the protruding muscle of connection.

By adopting the technical scheme, the tailstock is tightly connected with the plug shell, so that the fixing effect of the plug insulator is improved.

The utility model discloses further set up to: the one end that plug housing was kept away from to the tailstock has the pressure disk through fixing bolt connection, accompany the sealing washer between pressure disk and the tailstock.

By adopting the technical scheme, the sealing performance of the cable connector is improved.

The utility model discloses further set up to: the socket subassembly includes the socket casing, sets up in the inside socket insulator of socket casing, the socket insulator is fixed along its circumference and is worn to be equipped with a plurality of position sleeves, set screw is worn to be equipped with in position sleeve department, the socket casing inboard is connected with the locating plate with set screw thread fit, the socket insulator is provided with the chamber of stepping down that supplies the position screw head card to go into.

By adopting the technical scheme, the socket insulator is fixed inside the socket shell through the positioning screws, and the positioning screws are hidden inside the socket shell, so that the socket insulator is not easy to rotate in the using process, and the fixing effect of the socket insulator is further ensured.

The utility model discloses further set up to: the socket insulator internally mounted has the socket conducting rod, plug insulator internally mounted has the plug conducting rod, be connected with the conducting rod subassembly between socket conducting rod and the plug conducting rod, the conducting rod subassembly includes that the conducting rod core of card income plug conducting rod and socket conducting rod, overlaps in the conducting rod insulator in the conducting rod core middle part outside.

By adopting the technical scheme, the plug conducting rod and the socket conducting rod are connected at the back of the body, and the socket assembly and the plug assembly can be connected in a circuit after being plugged.

The utility model discloses further set up to: and the plug insulator and the socket insulator are internally provided with grounding male insertion rods, and the two grounding male insertion rods are connected through a grounding female insertion rod.

Through adopting above-mentioned technical scheme, the earth connection is connected to two public inserted bar backs on the back of the body one end of ground connection, realizes electrical equipment ground connection.

The utility model discloses further set up to: the middle sealing body is clamped between the plug shell and the socket shell, and the grounding female insertion rod is fixedly arranged in the middle of the middle sealing body in a penetrating mode.

Through adopting above-mentioned technical scheme, the female inserted bar of ground connection receives the support of middle seal fixed, and then guarantees that the connection between female inserted bar of ground connection and the public inserted bar of ground connection is stable.

The utility model discloses further set up to: the outer edge both sides of middle seal all are formed with the snap ring, plug housing and socket housing all are provided with the draw-in groove that supplies the snap ring card to go into.

Through adopting above-mentioned technical scheme, the fixed effectual of clamp that middle seal received.

The utility model discloses further set up to: one side of the middle sealing body facing the socket insulator is connected with a limiting bump clamped into the yielding cavity.

Through adopting above-mentioned technical scheme, the unable socket insulator of middle seal rotates relatively, guarantees its fixed position.

The utility model discloses further set up to: the socket shell is connected with solid fixed ring in the one end outside of keeping away from the plug shell, gu fixed ring is provided with a plurality of fixed orificess that supply the bolt to pass, gu fixed ring has the distance to the socket shell's tip of keeping away from the plug shell, gu the fixed ring inner edge is provided with the seal groove, seal groove department is provided with the sealing ring.

Through adopting above-mentioned technical scheme, when the socket subassembly was installed on the organism, socket shell body tip part inserted, even if consequently the bolt is not hard up, also be difficult for producing the clearance between socket shell body and the organism, seal effectually, guarantee the security.

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

1. through the arrangement of the fixing screw, the fixing sleeve and the support, the socket insulator is good in fixing effect and not easy to loosen;

2. the middle sealing body has a supporting and fixing effect on the grounding female insertion rod, and the connection stability of the grounding female insertion rod and the grounding male insertion rod is ensured;

3. creepage distance and electric clearance all accord with national standard, and the security performance is high.

Drawings

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

FIG. 2 is a schematic left side view of the embodiment;

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

FIG. 4 is an exploded schematic view of an embodiment;

FIG. 5 is an exploded view of the receptacle assembly of the embodiment;

FIG. 6 is an exploded view of the plug assembly of the embodiment;

fig. 7 is a schematic structural diagram of the plug housing, the tailstock and the platen in the embodiment.

Description of reference numerals: 1. a plug assembly; 11. a plug housing; 111. a connecting ring; 112. connecting the convex ribs; 12. a plug insulator; 121. an accommodating cavity; 13. a plug conductive rod; 14. a set screw; 15. fixing a sleeve; 16. a pillar; 161. fixing grooves; 17. a tailstock; 171. a fixed seat; 18. a seal ring; 19. a platen; 2. a receptacle assembly; 21. a socket housing; 211. positioning a plate; 22. a socket insulator; 221. a yielding cavity; 23. a socket conductive rod; 24. a set screw; 25. a positioning sleeve; 26. a fixing ring; 261. a fixing hole; 262. a sealing groove; 27. a seal ring; 3. a connecting bolt; 4. connecting grooves; 5. fixing the bolt; 6. a conductive rod assembly; 61. a conductive rod core; 62. a collector bar insulator; 7. a grounded male bayonet; 8. a ground female insertion rod; 9. an intermediate seal body; 91. a snap ring; 92. a limiting bump; 10. a clamping groove.

Detailed Description

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

A mining explosion-proof high-voltage 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 and the socket component 2 are connected through a plurality of bolts at the opposite ends of the plug component 1 and the socket component 2.

As shown in fig. 2 and 3, the plug assembly 1 includes a plug housing 11, a plug insulator 12 mounted inside the plug housing 11, a plug conductive rod 13 mounted and fixed inside the plug insulator 12, a grounding male plug 7 and a fixing sleeve 15, a tail base 17 connected to an end of the plug housing 11 away from the socket assembly 2, a plurality of pillars 16 disposed between the tail base 17 and the plug insulator 12, a pressure plate 19 connected to an end of the tail base 17 away from the plug housing 11, and a seal ring 18 disposed between the pressure plate 19 and the tail base 17.

The plug conducting rods 13 and the fixing sleeve 15 are arranged in three and staggered mode and distributed at equal intervals around the circumference of the plug insulator 12; the grounding male insertion rod 7 is arranged in the middle of the plug insulator 12, annular grooves are formed in the outer sides of the middle of the grounding male insertion rod 7 and the middle of the fixed sleeve 15, and the grounding male insertion rod 7 is fixed by injection molding at the annular grooves after the plug insulator 12 is inserted.

As shown in fig. 2 and 3, the receptacle assembly 2 includes a receptacle housing 21, a receptacle insulator 22 mounted inside the receptacle housing 21, a receptacle conductive rod 23 mounted inside the receptacle insulator 22, a grounding male plug 7 and a positioning sleeve 25, and a baffle connected to an end of the receptacle housing 21 remote from the plug housing 11.

The socket conducting rod 23 and the positioning seat are provided with three and are distributed at equal intervals in a staggered mode around the circumference of the socket insulator 22; the grounding male insertion rod 7 is arranged in the middle of the socket insulator 22, annular grooves are formed in the outer sides of the middle of the grounding male insertion rod 7 and the middle of the positioning sleeve 25, and the grounding male insertion rod 7 is fixed by injection molding at the annular grooves after the grounding male insertion rod 7 is inserted into the socket insulator 22.

As shown in fig. 1, a fixing ring 26 is fixedly connected to an outer side of one end of the socket housing 21 away from the plug housing 11, and six fixing holes 261 for bolts to pass through are circumferentially arranged at equal intervals in the fixing ring 26. The fixing ring 26 has a distance to the end of the socket housing 21 away from the plug housing 11, a sealing groove 262 is provided at the inner edge of the side of the fixing ring 26 away from the plug assembly 1, and a sealing ring 27 is provided at the sealing groove 262. When the socket assembly 2 is installed on the machine body, the end part of the socket shell 21 is inserted, so that even if the bolt is loosened, a gap is not easy to generate between the socket shell 21 and the machine body, the sealing effect is good, and the safety is ensured.

As shown in fig. 3 and 4, the socket conductive rod 23 and the plug conductive rod 13 are connected by the conductive rod assembly 6, and the conductive rod assembly 6 includes a conductive rod core 61 that is clamped into the plug conductive rod 13 and the socket conductive rod 23, and a conductive rod insulator 62 that fixes the sleeve 15 outside the middle of the conductive rod core 61. The plug conducting rod 13 and the socket conducting rod 23 are connected at the opposite ends, and the socket component 2 and the plug component 1 can be connected in a circuit after being connected in an inserting mode. A grounding female insertion rod 8 is connected between the two opposite grounding male insertion rods 7, and the ends, back to the back, of the two grounding male insertion rods 7 are connected with a grounding wire, so that the grounding of electrical equipment is realized.

As shown in fig. 3 and 4, an intermediate sealing body 9 is sandwiched between the plug assembly 1 and the socket assembly 2, the intermediate sealing body 9 is circular, three through holes for the conductive rod assemblies 6 to pass through are circumferentially arranged on the intermediate sealing body 9, and clamping rings 91 are formed by protruding two opposite sides of the outer edge. The intermediate sealing body 9 protrudes outward at the adjacent gaps of the three through holes and is clamped into the socket insulator 22 and the plug insulator 12. The opposite ends of the socket housing 21 and the plug housing 11 are provided with clamping grooves 10 for clamping the clamping rings 91. The intermediate sealing body 9 is connected with three limiting lugs 92 on one side facing the socket insulator 22, and the socket insulator 22 is provided with three yielding cavities 221 for the limiting lugs 92 to be clamped into and communicated with the positioning sleeves 25. The female inserted bar 8 of ground connection is fixed to be worn to locate middle part of middle seal 9, and the female inserted bar 8 middle part outside of ground connection is provided with the ring channel, inserts behind the middle seal 9 ring channel department and moulds plastics and realize its fixed. The female inserted bar 8 of ground connection receives the support of intermediate seal body 9 to be fixed, and then guarantees that the connection between female inserted bar 8 of ground connection and the public inserted bar 7 of ground connection is stable.

As shown in fig. 3 and 5, a positioning screw 24 is inserted into the positioning sleeve 25, and the head of the positioning screw 24 faces the plug assembly 1 and is located in the abdicating cavity 221. The inner side of the socket housing 21 is fixedly connected with three positioning plates 211 attached to one side of the socket insulator 22 away from the plug assembly 1, and the positioning screws 24 are in threaded connection with the positioning plates 211. After the socket insulator 22 is placed in the socket housing 21, the positioning screw 24 is screwed, and the socket insulator 22 can be fixed. The positioning screw 24 is hidden inside the socket housing 21, and is not easy to rotate during use, so that the fixing effect of the socket insulator 22 is ensured.

As shown in fig. 3 and 6, the post 16 has a male screw at one end facing the tailstock 17 and a female screw-fitted fixing groove 161 at the other end. Three fixing seats 171 screwed with the pillars 16 are connected to the inner side of the tailstock 17 at equal intervals along the circumferential direction thereof. The fixing sleeve 15 is movably provided with a fixing screw 14 in a penetrating way, the head of the fixing screw 14 faces the socket component 2, the plug insulator 12 is provided with a containing cavity 121 for the head of the fixing screw 14 to be clamped in, and the containing cavity 121 is communicated to the fixing sleeve 15. The shaft of the fixing screw 14 extends into the fixing groove 161 and is screwed to the pillar 16. After the plug insulator 12 is placed in the plug housing 11, the fixing screw 14 is screwed on the post 16 to be screwed, so that the plug insulator 12 can be fixed. Since the fixing screw 14 is located inside the plug insulator 12, it is not easy to rotate during use, thereby ensuring the fixing effect of the plug insulator 12. Flat gaskets and spring washers are arranged between the head of the positioning screw 24 and the positioning sleeve 25 and between the fixing screw 14 and the fixing sleeve 15, and the improvement of the fixing effect is facilitated.

As shown in fig. 3 and 7, a connection ring 111 is formed on an outer edge of one end of the plug housing 11 facing the tailstock 17, and six connection ribs 112 are fixedly connected between the connection ring 111 and the plug housing 11 and are arranged at equal intervals along the circumferential direction of the plug housing 11. Six connecting bolts 3 are movably arranged around the periphery of the tailstock 17 at equal intervals, and the connecting ring 111 and the connecting convex rib 112 are jointly provided with a connecting groove 4 for screwing the connecting bolts 3. After the tail seat 17 is attached to the plug housing 11, the connection between the tail seat and the plug housing can be realized by screwing the connecting bolt 3. Four fixing bolts 5 are movably arranged around the periphery of the pressure plate 19 at equal intervals in a penetrating manner, and the fixing bolts 5 are in threaded connection with the tailstock 17. The inside of the tailstock 17 is formed with a convex edge for limiting a sealing ring 18, and the sealing ring 18 is clamped by the tailstock 17 and the pressure plate 19 after the pressure plate 19 is installed.

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

1. The utility model provides a mining flame-proof type high-voltage cable connector, is including plug subassembly (1) and socket subassembly (2) of pegging graft each other, plug subassembly (1) includes plug housing (11), sets up in inside plug insulator (12) of plug housing (11), its characterized in that: plug subassembly (1) is still including connecting tailstock (17), a plurality of pillar (16) that set up between tailstock (17) and plug insulator (12) of keeping away from socket subassembly (2) one end in plug housing (11), tailstock (17) inboard is connected with a plurality of fixing bases (171) with pillar (16) threaded connection along its circumference interval, plug insulator (12) is fixed along its circumference interval and is worn to be equipped with a plurality of fixed cover (15) just to pillar (16), fixed cover (15) department wears to be equipped with set screw (14), pillar (16) tip is provided with fixed slot (161) with set screw (14) screw-thread fit, plug insulator (12) are provided with holding chamber (121) that supply set screw (14) head card to go into.

2. The mining flameproof high-voltage cable connector according to claim 1, characterized in that: the plug shell (11) is formed with go-between (111) towards the outer edge of the one end of tailstock (17), be connected with between go-between (111) and plug shell (11) a plurality of protruding muscle (112) of connection that set up along plug shell (11) circumference interval, a plurality of connecting bolt (3) are worn to be equipped with along around its circumference outward in tailstock (17), go-between (111) and protruding muscle (112) of connection are provided with connecting groove (4) that supply connecting bolt (3) to twist jointly.

3. The mining flameproof high-voltage cable connector according to claim 1, characterized in that: the one end that plug housing (11) was kept away from in tailstock (17) is connected with pressure disk (19) through fixing bolt (5), accompany between pressure disk (19) and tailstock (17) sealing washer (18).

4. The mining flameproof high-voltage cable connector according to claim 1, characterized in that: socket subassembly (2) include socket casing (21), set up in socket insulator (22) of socket casing (21) inside, socket insulator (22) are fixed along its circumference and are worn to be equipped with a plurality of position sleeves (25), set screw (24) are worn to be equipped with in position sleeve (25), socket casing (21) inboard is connected with locating plate (211) with set screw (24) screw-thread fit, socket insulator (22) are provided with the chamber of stepping down (221) that supply set screw (24) head card to go into.

5. The mining flameproof high-voltage cable connector according to claim 4, characterized in that: socket insulator (22) internally mounted has socket conducting rod (23), plug insulator (12) internally mounted has plug conducting rod (13), be connected with conducting rod subassembly (6) between socket conducting rod (23) and plug conducting rod (13), conducting rod subassembly (6) are gone into conducting rod core (61) of plug conducting rod (13) and socket conducting rod (23), are overlapped in conducting rod insulator (62) outside conducting rod core (61) middle part including the card.

6. The mining flameproof high-voltage cable connector according to claim 4, characterized in that: the plug insulator (12) and the socket insulator (22) are internally provided with grounding male insertion rods (7), and the two grounding male insertion rods (7) are connected through a grounding female insertion rod (8).

7. The mining flameproof high-voltage cable connector according to claim 6, characterized in that: an intermediate sealing body (9) is clamped between the plug shell (11) and the socket shell (21), and the grounding female insertion rod (8) is fixedly arranged in the middle of the intermediate sealing body (9) in a penetrating mode.

8. The mining flameproof high-voltage cable connector according to claim 7, characterized in that: middle seal body (9) are all formed with snap ring (91) along both sides outward, plug housing (11) and socket housing (21) all are provided with draw-in groove (10) that confession snap ring (91) card was gone into.

9. The mining flameproof high-voltage cable connector according to claim 7, characterized in that: one side of the middle sealing body (9) facing the socket insulator (22) is connected with a limiting bump (92) clamped into the yielding cavity (221).

10. The mining flameproof high-voltage cable connector according to claim 4, characterized in that: the socket casing (21) are kept away from the one end outside of plug casing (11) and are connected with solid fixed ring (26), gu fixed ring (26) are provided with a plurality of fixed orificess (261) that supply the bolt to pass, gu fixed ring (26) have the distance to the tip that plug casing (11) were kept away from to socket casing (21), gu be provided with seal groove (262) along being provided with in fixed ring (26), seal groove (262) department is provided with sealing ring (27).