CN214478152U - High explosion-proof connector - Google Patents

High explosion-proof connector Download PDF

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Publication number
CN214478152U
CN214478152U CN202120584437.XU CN202120584437U CN214478152U CN 214478152 U CN214478152 U CN 214478152U CN 202120584437 U CN202120584437 U CN 202120584437U CN 214478152 U CN214478152 U CN 214478152U
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China
Prior art keywords
socket
plug
explosion
barrel
proof
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CN202120584437.XU
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Chinese (zh)
Inventor
金晓鹏
谢金汉
林哲琳
张胜余
张乃月
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China Helon Explosion Proof Electric Co ltd
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China Helon Explosion Proof Electric Co ltd
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Abstract

The utility model relates to a high explosion-proof connector, including explosion-proof plug and explosion-proof socket, explosion-proof socket includes the socket barrel, socket barrel internal fixation is provided with the socket core body, socket core body front end is fixed and is provided with the plug bush that a plurality of circumferences were arranged, explosion-proof plug includes the plug barrel, plug barrel internal fixation is provided with the plug core body, plug core body front end is provided with the slot with socket core body shape looks adaptation, the slot internal fixation is provided with the circumference and arranges and with the contact pin of plug bush one-to-one, still including reserving the wire, it is fixed with the plug bush rear end to reserve wire one end, the other end extends to the socket barrel external, the socket barrel is located socket core body rear and is provided with the cavity of sealing of watering that supplies to reserve the wire process and to seal socket core body rear end. With the adoption of the scheme, the utility model provides a guarantee high explosion-proof connector of chemical industry instrument explosion-proof ability.

Description

High explosion-proof connector
Technical Field
The utility model relates to an explosion-proof power supply unit field, concretely relates to high explosion-proof connector.
Background
In dangerous areas such as chemical plants, in order to guarantee normal operation of equipment and avoid danger, a large number of instruments are often required to monitor the pipeline condition at all times, so that the instruments are designed to be explosion-proof, and a power supply circuit for supplying power to the instruments is also designed to be explosion-proof. The traditional mode is that the explosion-proof bobbin realizes supply circuit's explosion-proof function in power supply wire periphery cover, but this kind of mode has certain drawback, need cut off the wire when overhauing the instrument or maintaining promptly, then need reconnect again, and the not only greatly increased work load of numerous instruments of job site also the condition of misconnection often appears.
In order to solve the problems, an explosion-proof connector is developed and comprises an explosion-proof plug and an explosion-proof socket, and a contact pin of the explosion-proof plug is connected with a plug bush of the explosion-proof socket in an inserting mode to form communication of a power supply circuit between an instrument and a power supply, so that quick connection is achieved, but the actual explosion-proof capacity of the traditional explosion-proof connector is limited.
Disclosure of Invention
Not enough to prior art exists, the utility model aims to provide a guarantee high explosion-proof connector of chemical industry instrument explosion-proof ability.
In order to achieve the above purpose, the utility model provides a following technical scheme: including explosion-proof plug and explosion-proof socket, explosion-proof socket include the socket barrel, socket barrel internal fixation be provided with the socket core body, socket core body front end fixed be provided with the plug bush that a plurality of circumferences were arranged, explosion-proof plug include the plug barrel, the plug barrel internal fixation be provided with the plug core body, plug core body front end be provided with the slot of socket core body shape looks adaptation, the slot internal fixation be provided with the circumference arrange and with the contact pin of plug bush one-to-one, its characterized in that: still including reserving the wire, reserve wire one end and plug bush rear end fixed, the other end extends to outside the socket barrel, the socket barrel be located socket core body rear and be provided with the encapsulation chamber that supplies to reserve the wire and pass through and seal socket core body rear end.
Through adopting above-mentioned technical scheme, explosion-proof ability is as explosion-proof connector's main index of judging, and its direct decision explosion-proof connector's performance, because explosion-proof socket and instrument are long-time stable installation, so adopt the mode of pouring and sealing to improve explosion-proof performance between explosion-proof socket and instrument, reserve the wire fixed with the plug bush simultaneously, be convenient for form the electricity with the instrument and be connected, compare traditional hollow structure and have higher explosion-proof performance.
The utility model discloses further set up to: the inner periphery of the encapsulation cavity is respectively provided with an encapsulation bulge and an encapsulation recess in a surrounding manner.
By adopting the technical scheme, the pouring seal bulge and the pouring seal recess are additionally arranged, so that the connection strength between the epoxy resin and the pouring seal cavity is improved, and the explosion-proof performance is ensured.
The utility model discloses further set up to: the plug barrel rear end fixed be provided with the wire casing, the wire casing rear end be provided with and compress tightly the groove, compress tightly the groove middle part and be provided with the through-hole and form sealed step around the through-hole, compress tightly the groove and be located sealed step and be provided with the sealing washer, sealed step and the terminal surface that the sealing washer offseted as the guide domatic to along with being close to the center slope to the wire casing front end gradually, compress tightly the inslot internal periphery and be provided with screw-thread fit's clamp ring, clamp ring screw in compress tightly the groove when with the sealing washer to guide domatic extrusion, the guide sealing washer is to compressing tightly groove center deformation.
By adopting the technical scheme, the wire outgoing sleeve is used for leading out the wires of the connecting contact pins, the sealing ring is extruded towards the guide slope surface when the pressing ring is screwed into the pressing groove, the guide sealing ring deforms towards the center of the pressing groove, the periphery of the wires penetrating through the through hole is pressed to form stable sealing, a stable explosion-proof barrier is formed, the explosion-proof performance is ensured, and the anti-pull-out effect is also achieved.
The utility model discloses further set up to: and a check ring is arranged between the compression ring and the sealing ring.
By adopting the technical scheme, the check ring is additionally arranged, so that the compression ring uniformly extrudes the sealing ring, the deformation of the sealing ring is more uniform, and the explosion-proof effect is better.
The utility model discloses further set up to: the socket core body is provided with an assembly part with the inner periphery matched with the outer shape of the plug cylinder body in a surrounding mode, the outer periphery of the plug cylinder body is provided with a limiting convex rib abutted against the assembly part, the locking ring surrounds the assembly part and is in threaded fit with the outer periphery of the assembly part, and the locking ring is arranged on the other side, opposite to the assembly part, of the limiting convex rib and is provided with a limiting bend.
Through adopting above-mentioned technical scheme, the lock ring and assembly part screw-thread fit, when both rotate relatively, the lock ring draws assembly part to spacing protruding muscle gradually, until with spacing protruding muscle offset realize explosion-proof socket and explosion-proof plug's stable grafting.
The utility model discloses further set up to: the locking ring is radially provided with a locking hole, a locking stud in threaded fit is arranged in the locking hole, and the locking stud is screwed into the locking hole until abutting against the periphery of the assembly part.
Through adopting above-mentioned technical scheme, add the locking hole, carry out the secondary locking from radially with lock ring and assembly part, improve the locking reliability between them.
The utility model discloses further set up to: the plug cylinder be provided with the plug safety cover and with the plug chain of plug safety cover and plug cylinder connection, the plug safety cover include the plug closing cap of closed plug cylinder front end and with the plug protection ring of plug cylinder periphery shape looks adaptation, plug protection ring periphery and locking ring inner periphery be screw-thread fit.
Through adopting above-mentioned technical scheme, add the plug safety cover, seal explosion-proof plug and protect and prevent dust its inner structure when explosion-proof plug separates with explosion-proof socket, the rational utilization locking washer is used for the locking, makes the structure more compact.
The utility model discloses further set up to: the socket barrel be provided with socket protection cover and with the socket chain that socket protection cover and socket barrel are connected, socket protection cover including the socket closing cap of sealing socket barrel front end and with the socket protection ring of socket barrel periphery shape looks adaptation, socket protection ring internal periphery and socket barrel periphery be screw-thread fit.
Through adopting above-mentioned technical scheme, add the socket safety cover, seal explosion-proof socket when explosion-proof plug and explosion-proof socket separation and protect and prevent dust its inner structure, the screw thread that the rational utilization socket barrel periphery is present is used for the locking, makes the structure more compact.
The utility model discloses further set up to: the socket comprises a socket barrel and is characterized by further comprising a protective sleeve, wherein the protective sleeve is provided with a rear sealing cover for sealing the rear end of the socket barrel and a rear protective ring which surrounds the rear end of the socket barrel and is in threaded fit with the periphery of the rear end of the socket barrel, and the rear sealing cover is provided with a wire passing hole for the reserved lead to extend out.
Through adopting above-mentioned technical scheme, the explosion-proof socket is protected from the rear end to the protective sheath, guarantees inner structure's stability and reliability, adds the line hole of crossing and is used for supplying the wire business turn over.
Drawings
FIG. 1 is a cross-sectional view of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of an explosion proof plug in an embodiment of the present invention;
fig. 3 is a sectional view of an explosion-proof socket according to an embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 to 3, the utility model discloses a high explosion-proof connector, which comprises an explosion-proof plug and an explosion-proof socket, wherein the explosion-proof socket comprises a socket barrel 1, a socket core body 2 is fixedly arranged in the socket barrel 1, a plurality of insertion sleeves 21 which are arranged in a circle are fixedly arranged at the front end of the socket core body 2, the explosion-proof plug comprises a plug barrel 3, a plug core body 4 is fixedly arranged in the plug barrel 3, a slot 41 which is matched with the shape of the socket core body 2 is arranged at the front end of the plug core body 4, pins 42 which are arranged in a circle and correspond to the insertion sleeves 21 one by one are fixedly arranged in the slot 41, a reserved lead 11 is also included, one end of the reserved lead 11 is fixed with the rear end of the insertion sleeve 21, the other end extends out of the socket barrel 1, a pouring sealing cavity 12 which is arranged at the rear end of the socket core body 2 and is used for the reserved lead 11 to pass through and to seal the rear end of the socket core body 2, the explosion-proof capacity is used as a main judgment index of the explosion-proof connector, the service performance of the explosion-proof connector is directly determined, the explosion-proof socket and the instrument are stably installed for a long time, so that the explosion-proof performance is improved by adopting a pouring sealing mode between the explosion-proof socket and the instrument, meanwhile, a lead fixed with the plug bush 21 is reserved, the explosion-proof connector is convenient to form electric connection with the instrument, and the explosion-proof connector has higher explosion-proof performance compared with a traditional hollow structure.
The inner periphery of the encapsulation cavity 12 is respectively provided with an encapsulation bulge 121 and an encapsulation recess 122 in a surrounding manner, and the encapsulation bulge 121 and the encapsulation recess 122 are additionally arranged, so that the connection strength between the epoxy resin and the encapsulation cavity 12 is improved, and the explosion-proof performance is ensured.
The rear end of the plug cylinder 3 is fixedly provided with a wire outlet sleeve 31, the rear end of the wire outlet sleeve 31 is provided with a pressing groove 311, the middle part of the pressing groove 311 is provided with a through hole 312, a sealing step 313 is formed around the through hole 312, the pressing groove 311 is positioned on the sealing step 313 and is provided with a sealing ring 314, the end surface of the sealing step 313 abutted to the sealing ring 314 is used as a guiding slope 315 and gradually inclines towards the front end of the wire outlet sleeve 31 along with approaching the center, the inner circumference of the pressing groove 311 is provided with a pressing ring 316 in threaded fit, the sealing ring 314 is extruded towards the guiding slope 315 when the pressing ring 316 is screwed into the pressing groove 311, the sealing ring 314 is deformed towards the center of the pressing groove 311, the wire outlet sleeve 31 is used for leading out a lead wire of a connecting pin 42, the sealing ring 314 is extruded towards the guiding slope 315 when the pressing ring 316 is screwed into the pressing groove 311, the sealing ring 314 is deformed towards the center of the pressing groove 311, and the outer circumference of the lead wire passing through hole 312 is pressed to form stable sealing, and a stable explosion-proof barrier is formed, so that the explosion-proof performance is ensured, and the anti-stripping effect is achieved.
A retainer ring 317 is arranged between the compression ring 316 and the seal ring 314, and the retainer ring 317 is additionally arranged to enable the compression ring 316 to evenly extrude the seal ring 314, so that the deformation of the seal ring 314 is more even, and the explosion-proof effect is better.
Still include the check ring 5, socket barrel 1 front end is provided with the fitting part 13 of interior week and the fitting part 3 peripheral shape looks adaptation around socket core body 2, the plug barrel 3 periphery is provided with spacing protruding muscle 32 that offsets with fitting part 13, check ring 5 encircles fitting part 13 and is screw-thread fit with fitting part 13 periphery, check ring 5 is located the opposite side that spacing protruding muscle 32 is relative fitting part 13 and is provided with spacing bending 51, check ring 5 and fitting part 13 screw-thread fit, when both rotate relatively, check ring 5 draws fitting part 13 to spacing protruding muscle 32 gradually, until offsetting with spacing protruding muscle 32 and realize the stable grafting of explosion-proof socket and explosion-proof plug.
The locking ring 5 is radially provided with a locking hole 52, a locking stud 53 in threaded fit is arranged in the locking hole 52, the locking stud 53 is screwed into the locking hole 52 until abutting against the periphery of the assembling part 13, the locking hole 52 is additionally arranged, the locking ring 5 and the assembling part 13 are locked for the second time in the radial direction, and the locking reliability of the locking ring 5 and the assembling part 13 is improved.
The plug cylinder 3 is provided with a plug protection cover 6 and a plug chain 61 for connecting the plug protection cover 6 with the plug cylinder 3, the plug protection cover 6 comprises a plug sealing cover 62 for sealing the front end of the plug cylinder 3 and a plug protection ring 63 matched with the peripheral shape of the plug cylinder 3, the periphery of the plug protection ring 63 is in threaded fit with the inner periphery of the locking ring 5, the plug protection cover 6 is additionally arranged, the explosion-proof plug is sealed to protect and prevent dust of the internal structure when the explosion-proof plug is separated from the explosion-proof socket, and the locking ring 5 is reasonably used for locking, so that the structure is more compact.
The socket protection cover 7 and the socket chain 71 connecting the socket protection cover 7 with the socket barrel 1 are arranged on the socket barrel 1, the socket protection cover 7 comprises a socket sealing cover 72 for sealing the front end of the socket barrel 1 and a socket protection ring 73 matched with the peripheral shape of the socket barrel 1, the inner periphery of the socket protection ring 73 is in threaded fit with the outer periphery of the socket barrel 1, the socket protection cover 7 is additionally arranged, the explosion-proof socket is sealed to protect and prevent dust of the internal structure when the explosion-proof plug is separated from the explosion-proof socket, the existing threads on the outer periphery of the socket barrel 1 are reasonably used for locking, the structure is more compact, and the socket protection cover 7 and the plug protection cover 6 can be screwed when the explosion-proof socket is plugged into and matched with the explosion-proof plug.
Still include sheath 8, sheath 8 is provided with the rear sealing cover 81 that closes socket barrel 1 rear end and encircles socket barrel 1 rear end and with socket barrel 1 rear end periphery screw-thread fit's back protection ring 82, and rear sealing cover 81 is provided with the line hole 83 of crossing that supplies to reserve wire 11 and stretch out, and protection sleeve 8 protects explosion-proof socket from the rear end, guarantees inner structure's stability and reliability, adds and crosses line hole 83 and be used for supplying the wire business turn over.

Claims (9)

1. The utility model provides a high explosion-proof connector, includes explosion-proof plug and explosion-proof socket, explosion-proof socket include the socket barrel, the socket barrel internal fixation be provided with the socket core body, socket core body front end fixed be provided with the plug bush that a plurality of circumferences were arranged, explosion-proof plug include the plug barrel, the plug barrel internal fixation be provided with the plug core body, plug core body front end be provided with the slot of socket core body shape looks adaptation, the slot internal fixation be provided with the circumference arrange and with the contact pin of plug bush one-to-one, its characterized in that: still including reserving the wire, reserve wire one end and plug bush rear end fixed, the other end extends to outside the socket barrel, the socket barrel be located socket core body rear and be provided with the encapsulation chamber that supplies to reserve the wire and pass through and seal socket core body rear end.
2. The high explosion proof connector of claim 1, wherein: the inner periphery of the encapsulation cavity is respectively provided with an encapsulation bulge and an encapsulation recess in a surrounding manner.
3. The high explosion proof connector of claim 1, wherein: the plug barrel rear end fixed be provided with the wire casing, the wire casing rear end be provided with and compress tightly the groove, compress tightly the groove middle part and be provided with the through-hole and form sealed step around the through-hole, compress tightly the groove and be located sealed step and be provided with the sealing washer, sealed step and the terminal surface that the sealing washer offseted as the guide domatic to along with being close to the center slope to the wire casing front end gradually, compress tightly the inslot internal periphery and be provided with screw-thread fit's clamp ring, clamp ring screw in compress tightly the groove when with the sealing washer to guide domatic extrusion, the guide sealing washer is to compressing tightly groove center deformation.
4. A highly explosion-proof connector as set forth in claim 3, wherein: and a check ring is arranged between the compression ring and the sealing ring.
5. The high explosion proof connector of claim 1, wherein: the socket core body is provided with an assembly part with the inner periphery matched with the outer shape of the plug cylinder body in a surrounding mode, the outer periphery of the plug cylinder body is provided with a limiting convex rib abutted against the assembly part, the locking ring surrounds the assembly part and is in threaded fit with the outer periphery of the assembly part, and the locking ring is arranged on the other side, opposite to the assembly part, of the limiting convex rib and is provided with a limiting bend.
6. The high explosion proof connector of claim 5, wherein: the locking ring is radially provided with a locking hole, a locking stud in threaded fit is arranged in the locking hole, and the locking stud is screwed into the locking hole until abutting against the periphery of the assembly part.
7. The high explosion proof connector of claim 5, wherein: the plug cylinder be provided with the plug safety cover and with the plug chain of plug safety cover and plug cylinder connection, the plug safety cover include the plug closing cap of closed plug cylinder front end and with the plug protection ring of plug cylinder periphery shape looks adaptation, plug protection ring periphery and locking ring inner periphery be screw-thread fit.
8. The high explosion proof connector of claim 5, wherein: the socket barrel be provided with socket protection cover and with the socket chain that socket protection cover and socket barrel are connected, socket protection cover including the socket closing cap of sealing socket barrel front end and with the socket protection ring of socket barrel periphery shape looks adaptation, socket protection ring internal periphery and socket barrel periphery be screw-thread fit.
9. The high explosion proof connector of claim 1, wherein: the socket comprises a socket barrel and is characterized by further comprising a protective sleeve, wherein the protective sleeve is provided with a rear sealing cover for sealing the rear end of the socket barrel and a rear protective ring which surrounds the rear end of the socket barrel and is in threaded fit with the periphery of the rear end of the socket barrel, and the rear sealing cover is provided with a wire passing hole for the reserved lead to extend out.
CN202120584437.XU 2021-03-22 2021-03-22 High explosion-proof connector Active CN214478152U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120584437.XU CN214478152U (en) 2021-03-22 2021-03-22 High explosion-proof connector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120584437.XU CN214478152U (en) 2021-03-22 2021-03-22 High explosion-proof connector

Publications (1)

Publication Number Publication Date
CN214478152U true CN214478152U (en) 2021-10-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120584437.XU Active CN214478152U (en) 2021-03-22 2021-03-22 High explosion-proof connector

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Country Link
CN (1) CN214478152U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114784558A (en) * 2022-03-10 2022-07-22 沈阳中科奥维科技股份有限公司 Radio frequency connector with explosion-proof function and design method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114784558A (en) * 2022-03-10 2022-07-22 沈阳中科奥维科技股份有限公司 Radio frequency connector with explosion-proof function and design method
CN114784558B (en) * 2022-03-10 2023-10-31 沈阳中科奥维科技股份有限公司 Radio frequency connector with explosion-proof function and design method

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