CN203951114U - A kind of anti-explosion terminal box that is conducive to guarantee explosion insulation performance - Google Patents
A kind of anti-explosion terminal box that is conducive to guarantee explosion insulation performance Download PDFInfo
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- CN203951114U CN203951114U CN201420355250.2U CN201420355250U CN203951114U CN 203951114 U CN203951114 U CN 203951114U CN 201420355250 U CN201420355250 U CN 201420355250U CN 203951114 U CN203951114 U CN 203951114U
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- explosion
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Abstract
The utility model discloses a kind of anti-explosion terminal box that is conducive to guarantee explosion insulation performance, comprise base and upper cover, between described base and upper cover, form wire connection cavity, on the side of described base, be also fixed with at least one penetration pipe, described penetration pipe comprises lead-in wire cylinder, on the axis of lead-in wire cylinder, be provided with reducing through hole, one end of reducing through hole is provided with internal thread, in described reducing through hole, be embedded with sealing gasket, in internal thread hole, be provided with the clamping nut that one-tenth is threaded with it, on lead-in wire cylinder, be also provided with external screw thread, on described external screw thread, be provided with clamping screw, on lead-in wire cylinder, projection is also set.The utility model is simple in structure, is applicable to the explosion-proof connection of certain wire range inner cable, has the feature that good sealing explosion insulation performance, cable connector lug connection speed are fast, wire terminal stable connection is good simultaneously.
Description
Technical field
The utility model relates to a kind of electric wire protector, particularly relates to a kind of anti-explosion terminal box that is conducive to guarantee explosion insulation performance.
Background technology
Colliery subsurface environment is special, have inflammable gas and dust, once above-mentioned gas and dust run into any electric spark after reaching explosion limit, very easily cause serious work safety accident, so the system equipment such as the various types of communication under mine, monitoring, instrument and automation has explosion prevention function and seems particularly important.
Lighting installation under coal mine, power-equipment are many, and in zero duration line cord wiring process, terminal box is indispensable equipment.In prior art, the sealing of the junction of terminal box and cable was easily lost efficacy, and terminal box inner cable joint is easily loosening under the effect of two ends cable pull.
Utility model content
Junction sealing for terminal box and cable in above-mentioned prior art was easily lost efficacy, and terminal box inner cable joint easy loosening problem under the effect of two ends cable pull, and the utility model provides a kind of anti-explosion terminal box that is conducive to guarantee explosion insulation performance.
For the problems referred to above, the utility model provides is a kind ofly conducive to guarantee that the anti-explosion terminal box of explosion insulation performance solves problem by following technical essential: a kind of anti-explosion terminal box that is conducive to guarantee explosion insulation performance, comprise base in the form of slot and the upper cover being connected with bolt of lower base or screw, between described base and upper cover, form wire connection cavity, on the side of described base, be also fixed with at least one penetration pipe, described penetration pipe comprises the lead-in wire cylinder being fixed on base, on the axis of lead-in wire cylinder, be provided with reducing through hole, one end of reducing through hole is provided with internal thread, in described reducing through hole, be embedded with sealing gasket, in internal thread hole, be provided with the clamping nut that one-tenth is threaded with it, one end in contact of one end of clamping nut and sealing gasket, and the other end of sealing gasket is fixed with respect to lead-in wire cylinder position relationship, the through hole that sealing gasket is parallel with reducing through-bore axis with being provided with axis on clamping nut, lead-in wire cylinder is upper is also provided with external screw thread with respect to being connected with on the other end of clamping nut one end, on described external screw thread, be provided with the clamping screw that one-tenth is threaded with it, on lead-in wire cylinder, be also provided with the projection of protruding with respect to its outer wall, the described cylinder that goes between is distance adjustment realization the fixing with respect to base with respect to clamping screw by projection.
Concrete, the base of setting and upper cover are isolated for wire connection cavity and external environment, and wire connection cavity is for the accommodation space of cable connector like this, and the electric spark that cable connector place produces is shielded by base and upper cover, reaches the explosion prevention function of terminal box; The penetration pipe arranging is drawn and is introduced from the utility model for cable, in the version of penetration pipe, reducing through hole on through hole between clamping nut and sealing gasket, lead-in wire cylinder passes wire connecting portion for cable, the structural relation of clamping nut and sealing gasket, make clamping nut in further going deep into the process of reducing through hole, the length of sealing gasket quilt is compressed, make like this sealing gasket to its through-hole side distortion, in above process, on sealing gasket, the aperture of through hole diminishes, and finally contacts the sealing of the junction of realizing terminal box and cable with the outer wall of cable; The annexation of penetration pipe and base or upper cover; make between clamping screw and projection to form to base or upper cover compression realize penetration pipe base or on cover fixing; make penetration pipe base or on cover be connected to and removably connect, the penetration pipe of being convenient to like this to change different size is applicable to the wiring protection of larger wire range inner cable with making the utility model.
Further technical scheme is:
Due to base and upper cover no matter be for security consideration or save material and consider, in prior art, with upper-part, adopt plastic material more, for the connecting thread that prevents base and upper cover is in the easy premature failure under aging defect of plastics, on described base, be fixed with a plurality of threaded blocks that are connected with upper bonnet bolt or screw for base, described threaded block is the internal thread metallic sheath being embedded on base.
For guaranteeing the sealing property between base and upper cover, between the link end face of described base and upper cover, be also provided with sealing ring.
For strengthening upper cover, resist the ability of outside destroy, cover on described and be also provided with reinforcement, preferably reinforcement is arranged on the inner side of upper cover.
For ease of installation of the present utility model and fixing, described base or on cover and be also provided with holder, described holder is the block structure that one end and base or upper cover were fixedly connected with and were provided with on it fixed bolt hole.
For further guaranteeing the sealing property at penetration pipe place, the internal thread arranging on reducing through hole on described lead-in wire cylinder is gas thread.
For making sealing gasket and cable there is larger contact area, to increase the frictional force between sealing gasket and cable, be convenient to like this transmit by base or upper cover the pulling force of cable, avoid cable connector to connect under cable tension stress loosening, the length of described sealing gasket is not less than 3mm.
The utlity model has following beneficial effect:
1, the penetration pipe arranging is drawn and is introduced from the utility model for cable, in the version of penetration pipe, through hole between clamping nut and sealing gasket, reducing through hole on lead-in wire cylinder passes wire connecting portion for cable, the structural relation of clamping nut and sealing gasket, make clamping nut in further going deep into the process of reducing through hole, the length of sealing gasket quilt is compressed, make like this sealing gasket to its through-hole side distortion, in above process, on sealing gasket, the aperture of through hole diminishes, finally contact the sealing of the junction of realizing terminal box and cable with the outer wall of cable, in above process the decrement of sealing gasket be subject to clamping nut deeply go between cylinder the degree of depth determine, be convenient to like this obtain sealing gasket to the enough pressure in cable side, to ensure sealing effectiveness of the present utility model and produce the pulling force that enough frictional force is resisted the connector lug of cable between sealing gasket and cable, avoid cable connector lug to come off under described tension stress, the structure that realizes cable and the sealing of the utility model junction by tightening clamping nut, also helps wiring efficiency of the present utility model.
2, the annexation of penetration pipe and base or upper cover; make between clamping screw and projection to form to base or upper cover compression realize penetration pipe base or on cover fixing; make penetration pipe base or on cover be connected to and removably connect, the penetration pipe of being convenient to like this to change different size is applicable to the wiring protection of larger wire range inner cable with making the utility model.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation that is conducive to guarantee a specific embodiment of anti-explosion terminal box of explosion insulation performance described in the utility model;
Fig. 2 is a kind of structural representation that is conducive to guarantee a specific embodiment of anti-explosion terminal box penetration pipe of explosion insulation performance described in the utility model;
Fig. 3 is a kind of structure division cutaway view that is conducive to guarantee a specific embodiment of anti-explosion terminal box penetration pipe of explosion insulation performance described in the utility model;
Fig. 4 is a kind of structural representation that is conducive to guarantee a specific embodiment of anti-explosion terminal box sealing ring of explosion insulation performance described in the utility model.
Figure acceptance of the bid note is respectively: 1, base, 2, sealing ring, 3, penetration pipe, 31, clamping screw, 32, lead-in wire cylinder, 33, projection, 34, clamping nut, 35, sealing gasket, 4, upper cover, 5, reinforcement, 6, holder, 7, wire connection cavity, 8, threaded block, 9, screw.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but structure of the present utility model is not limited only to following examples.
Embodiment 1:
As shown in Figure 1 to Figure 4, a kind of anti-explosion terminal box that is conducive to guarantee explosion insulation performance, comprise base in the form of slot 1 and the upper cover 4 being connected with base 1 bolt or screw, between described base 1 and upper cover 4, form wire connection cavity 7, on the side of described base 1, be also fixed with at least one penetration pipe 3, described penetration pipe 3 comprises the lead-in wire cylinder 32 being fixed on base 1, on the axis of lead-in wire cylinder 32, be provided with reducing through hole, one end of reducing through hole is provided with internal thread, in described reducing through hole, be embedded with sealing gasket 35, in internal thread hole, be provided with the clamping nut 34 that one-tenth is threaded with it, one end in contact of one end of clamping nut 34 and sealing gasket 35, and the other end of sealing gasket 35 is fixed with respect to lead-in wire cylinder 32 position relationships, the through hole that sealing gasket 35 is parallel with reducing through-bore axis with being provided with axis on clamping nut 34, on lead-in wire cylinder 32, with respect to being connected with on the other end of clamping nut 34 one end, be also provided with external screw thread, on described external screw thread, be provided with the clamping screw 31 that one-tenth is threaded with it, on lead-in wire cylinder 32, be also provided with the projection 33 of protruding with respect to its outer wall, the described cylinder 32 that goes between is realized fixing with respect to base 1 by the projection 33 distance adjustment with respect to clamping screw 31.
Concrete, in the present embodiment, the base 1 arranging and upper cover 4 adopt has fabulous impact strength, good stability of the dimension, electrical property, resistance to wear, chemical proof, dyeability, the good ABS engineering plastics of processing and forming and machining, the penetration pipe 3 arranging is made by the polytetrafluoroethylene with good self-lubricating property, and the sealing gasket 35 of setting adopts the fluorubber with favorable elasticity and resistance to polarity.
Embodiment 2:
The present embodiment is further qualified on the basis of embodiment 1, as shown in Figure 1 to Figure 4, due to base 1 and upper cover 4 no matter be for security consideration or save material and consider, in prior art, with upper-part, adopt plastic material more, for the connecting thread that prevents base 1 and upper cover 4 is in the easy premature failure under aging defect of plastics, on described base 1, be fixed with a plurality of threaded blocks 8 that are connected with upper cover 4 bolts or screw for base 1, described threaded block 8 is the internal thread metallic sheath being embedded on base 1, threaded block described in the present embodiment 8 is for arranging female copper sheathing, by on upper cover 4, arrange with internal thread seat 8 one to one screw 9 realize being fixedly connected with of base 1 and upper cover 4.
Embodiment 3:
The present embodiment is further qualified on the basis of embodiment 1, as shown in Figure 1 to Figure 4, for guaranteeing the sealing property between base 1 and upper cover 4, between described base 1 and the link end face of upper cover 4, is also provided with sealing ring 2.
Embodiment 4:
The present embodiment is further qualified on the basis of above embodiment, as shown in Figure 1 to Figure 4, resists the ability of outside destroy for strengthening upper 4 lids, on described upper cover 4, is also provided with reinforcement 5, and preferably reinforcement 5 is arranged on the inner side of upper cover 4.
For ease of installation of the present utility model and fixing, on described base 1 or upper cover 4, be also provided with holder 6, described holder 6 is the block structure that one end and 1, the end or upper cover 4 were fixedly connected with and were provided with on it fixed bolt hole.
Embodiment 5:
The present embodiment is further qualified on the basis of embodiment 1, and as shown in Figure 1 to Figure 4, for further guaranteeing the sealing property at penetration pipe 3 places, the internal thread arranging on reducing through hole on described lead-in wire cylinder 32 is gas thread.
Embodiment 6:
The present embodiment is further qualified on the basis of above embodiment, as shown in Figure 1 to Figure 4, for making sealing gasket 35 and cable there is larger contact area, to increase the frictional force between sealing gasket 35 and cable, be convenient to like this transmit by base 1 or upper cover 4 pulling force of cable, avoid cable connector to connect under cable tension stress loosening, the length of described sealing gasket 35 is not less than 3mm.
Above content is the further description of the utility model being done in conjunction with concrete preferred implementation, can not assert that embodiment of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, not departing from other execution modes that draw under the technical solution of the utility model, all should be included in protection range of the present utility model.
Claims (7)
1. an anti-explosion terminal box that is conducive to guarantee explosion insulation performance, comprise base in the form of slot (1) and the upper cover (4) being connected with base (1) bolt or screw, between described base (1) and upper cover (4), form wire connection cavity (7), on the side of described base (1), be also fixed with at least one penetration pipe (3), it is characterized in that, described penetration pipe (3) comprises the lead-in wire cylinder (32) being fixed on base (1), on the axis of lead-in wire cylinder (32), be provided with reducing through hole, one end of reducing through hole is provided with internal thread, in described reducing through hole, be embedded with sealing gasket (35), in internal thread hole, be provided with the clamping nut (34) that one-tenth is threaded with it, one end in contact of one end of clamping nut (34) and sealing gasket (35), and the other end of sealing gasket (35) is fixed with respect to lead-in wire cylinder (32) position relationship, sealing gasket (35) with on clamping nut (34), be provided with the axis through hole parallel with reducing through-bore axis, lead-in wire cylinder (32) is upper is also provided with external screw thread with respect to being connected with on the other end of clamping nut (34) one end, on described external screw thread, be provided with the clamping screw (31) that one-tenth is threaded with it, on lead-in wire cylinder (32), be also provided with the projection (33) of protruding with respect to its outer wall, the described cylinder (32) that goes between is distance adjustment realization the fixing with respect to base (1) with respect to clamping screw (31) by projection (33).
2. a kind of anti-explosion terminal box that is conducive to guarantee explosion insulation performance according to claim 1, it is characterized in that, on described base (1), be fixed with a plurality of threaded blocks (8) that are connected with upper cover (4) bolt or screw for base (1), described threaded block (8) is the internal thread metallic sheath being embedded on base (1).
3. a kind of anti-explosion terminal box that is conducive to guarantee explosion insulation performance according to claim 1, is characterized in that, between described base (1) and the link end face of upper cover (4), is also provided with sealing ring (2).
4. a kind of anti-explosion terminal box that is conducive to guarantee explosion insulation performance according to claim 1, is characterized in that, is also provided with reinforcement (5) on described upper cover (4).
5. a kind of anti-explosion terminal box that is conducive to guarantee explosion insulation performance according to claim 1, it is characterized in that, on described base (1) or upper cover (4), be also provided with holder (6), described holder (6) is the block structure that one end and base (1) or upper cover (4) were fixedly connected with and were provided with on it fixed bolt hole.
6. according to a kind of anti-explosion terminal box that is conducive to guarantee explosion insulation performance described in any one in claim 1 to 5, it is characterized in that, the internal thread arranging on the upper reducing through hole of described lead-in wire cylinder (32) is gas thread.
7. according to a kind of anti-explosion terminal box that is conducive to guarantee explosion insulation performance described in any one in claim 1 to 5, it is characterized in that, the length of described sealing gasket (35) is not less than 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420355250.2U CN203951114U (en) | 2014-06-30 | 2014-06-30 | A kind of anti-explosion terminal box that is conducive to guarantee explosion insulation performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420355250.2U CN203951114U (en) | 2014-06-30 | 2014-06-30 | A kind of anti-explosion terminal box that is conducive to guarantee explosion insulation performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203951114U true CN203951114U (en) | 2014-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420355250.2U Expired - Fee Related CN203951114U (en) | 2014-06-30 | 2014-06-30 | A kind of anti-explosion terminal box that is conducive to guarantee explosion insulation performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203951114U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108601279A (en) * | 2018-03-28 | 2018-09-28 | 合肥凯利科技投资有限公司 | A kind of attachment device for wiring board in shield electric machine controller |
| WO2020249620A1 (en) | 2019-06-13 | 2020-12-17 | R. Stahl Schaltgeräte GmbH | Explosion-proof housing with a reinforcing frame |
| RU2815920C2 (en) * | 2019-06-13 | 2024-03-25 | Р. Шталь Шальтгерете Гмбх | Explosion-proof housing with reinforcing frame |
-
2014
- 2014-06-30 CN CN201420355250.2U patent/CN203951114U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108601279A (en) * | 2018-03-28 | 2018-09-28 | 合肥凯利科技投资有限公司 | A kind of attachment device for wiring board in shield electric machine controller |
| WO2020249620A1 (en) | 2019-06-13 | 2020-12-17 | R. Stahl Schaltgeräte GmbH | Explosion-proof housing with a reinforcing frame |
| CN113924828A (en) * | 2019-06-13 | 2022-01-11 | R.施塔尔开关设备有限责任公司 | Explosion-proof housing with reinforcing frame |
| RU2815920C2 (en) * | 2019-06-13 | 2024-03-25 | Р. Шталь Шальтгерете Гмбх | Explosion-proof housing with reinforcing frame |
| CN113924828B (en) * | 2019-06-13 | 2024-04-30 | R.施塔尔开关设备有限责任公司 | Explosion-proof housing with reinforcing frame |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141119 Termination date: 20150630 |
|
| EXPY | Termination of patent right or utility model |