CN204167826U - A kind of anti-explosion terminal box being conducive to wiring efficiency - Google Patents
A kind of anti-explosion terminal box being conducive to wiring efficiency Download PDFInfo
- Publication number
- CN204167826U CN204167826U CN201420355238.1U CN201420355238U CN204167826U CN 204167826 U CN204167826 U CN 204167826U CN 201420355238 U CN201420355238 U CN 201420355238U CN 204167826 U CN204167826 U CN 204167826U
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- wire connecting
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Abstract
The utility model discloses a kind of anti-explosion terminal box being conducive to wiring efficiency, comprise base and upper cover, wire connection cavity is formed between base and upper cover, base is also fixed with penetration pipe, wire connecting portion is provided with in wire connection cavity, base is fixed with and wears pin, wire connecting portion is arranged porose, wire connecting portion is provided with set bolt; Penetration pipe comprises lead-in wire cylinder, lead-in wire cylinder is provided with reducing through hole, one end of reducing through hole is provided with internal thread, sealing gasket is embedded with in reducing through hole, clamping nut is provided with in internal thread hole, lead-in wire cylinder is also provided with external screw thread, external screw thread is provided with clamping screw, lead-in wire cylinder also arranges projection; Wire connecting portion comprises wire connecting portion seat and at least one terminal block, and terminal block comprises conduction panel.The utility model structure is simple, is applicable to the explosion-proof connection of certain wire range inner cable, has good sealing explosion insulation performance, cable head connection speed is fast, wire terminal stable connection is good feature 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 being conducive to wiring efficiency.
Background technology
Underground coal mine 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, the system equipments such as the various types of communication therefore under mine, monitoring, instrument and automation have explosion prevention function and seem particularly important.
Underground coal mine lighting installation, power-equipment are many, and in zero duration line cord wiring process, terminal box is indispensable equipment.In prior art, the junction of terminal box and cable seals and easily lost efficacy, and terminal box inner cable joint easily loosens under the effect of two ends cable pull.
Utility model content
Seal for the junction of terminal box and cable in above-mentioned prior art and easily lost efficacy, and the problem that terminal box inner cable joint easily loosens under the effect of two ends cable pull, the utility model provides a kind of anti-explosion terminal box being conducive to wiring efficiency.
For the problems referred to above, a kind of anti-explosion terminal box being conducive to wiring efficiency that the utility model provides solves problem by following technical essential: a kind of anti-explosion terminal box being conducive to wiring efficiency, the upper cover comprising base in the form of slot and be connected with bolt of lower base or screw, wire connection cavity is formed between described base and upper cover, the side of described base is also fixed with at least one penetration pipe, also wire connecting portion is provided with in described wire connection cavity, what the bottom surface of base is also fixed with axis is positioned at vertical direction wears pin, wire connecting portion is provided with and the hole of wearing pin matched in clearance, wire connecting portion is also provided with at least one the set bolt be fixedly connected with base for wire connecting portion,
Described penetration pipe comprises the lead-in wire cylinder be fixed on base, the axis of lead-in wire cylinder is provided with reducing through hole, one end of reducing through hole is provided with internal thread, sealing gasket is embedded with in described reducing through hole, the clamping nut becoming to be threaded with it is provided with in internal thread hole, one end of clamping nut and the end thereof contacts of sealing gasket, and the other end of sealing gasket is fixed relative to lead-in wire cylinder position relationship, the through hole that sealing gasket is parallel with reducing through-bore axis with clamping nut being provided with axis, lead-in wire cylinder is also provided with external screw thread relative on the other end being connected with clamping nut one end, described external screw thread is provided with the clamping screw becoming to be threaded with it, lead-in wire cylinder is also provided with the projection protruded relative to its outer wall, described lead-in wire cylinder realizes fixing relative to base by the protruding adjustment of the distance relative to clamping screw,
Described wire connecting portion comprises wire connecting portion seat and at least one terminal block, described terminal block is fixed on wire connecting portion seat, terminal block comprises conduction panel, conduction panel is provided with at least two threading openings, the conduction panel of each threading opening side is provided with at least one hold-down bolt, the thread segment end of described hold-down bolt is all positioned at threading opening, and wire connecting portion is all positioned on wire connecting portion seat with the points of engagement in the hole and set bolt and wire connecting portion of wearing pin matched in clearance.
Concrete, the base of setting and upper cover are used for the isolated of wire connection cavity and external environment, and such wire connection cavity is used for the accommodation space of cable connector, and the electric spark of cable connector place generation is shielded by base and upper cover, reaches the explosion prevention function of terminal box, the penetration pipe arranged is used for cable and draws from the utility model and introduce, in the version of penetration pipe, reducing through hole on through hole between clamping nut and sealing gasket, lead-in wire cylinder is used for cable through wire connecting portion, the structural relation of clamping nut and sealing gasket, make clamping nut in the process going deep into reducing through hole further, the length of sealing gasket quilt is compressed, sealing gasket is made to be out of shape to its through-hole side like this, on sealing gasket, the aperture of through hole diminishes in the above process, and wall contacts that is last and cable realizes the sealing of the junction of terminal box and cable, the annexation of penetration pipe and base or upper cover, make to be formed between clamping screw and projection to base or upper cover compression realize penetration pipe base or on cover fixing, namely make penetration pipe base or on the connection that covers for removably connecting, the penetration pipe being convenient to like this change different size is protected with the wiring making the utility model be applicable to larger wire range inner cable, the wire connecting portion arranged is the joint of two cables, conduction panel is the platy structure with good conductive function, as copper coin, aluminium sheet, silver plate etc., the threading opening arranged is used for wearing of cable the end of a thread, the structural relation of threading opening and hold-down bolt, namely the compression be applied on cable connector by hold-down bolt is made to realize cable connector fixing on conduction panel, the compression that can be applied to cable connector due to hold-down bolt is determined by the intensity foot of screw thread, like this, cable interface and the firm annexation of conduction panel is convenient to obtain, the matching relationship wearing pin and wire connecting portion arranged, after making to relax set bolt, threading portion can rotate around the axis wearing pin, like this, after cable introduces wire connection cavity by penetration pipe, rotatable wire connecting portion seat makes threading opening just to the axis of cable, like this, can easily the end of a thread be introduced in threading opening, the fixing of the end of a thread and conduction panel is realized again by hold-down bolt, then by rotating wire connecting portion seat, cable is bending under the external force of penetration pipe and conduction panel, be convenient to obtain the end of a thread and other parts of cable are that 90 ° of angles depart from conduction panel under external force to prevent the end of a thread, above process avoids the prebuckling to the end of a thread before the end of a thread connects, particularly when the end of a thread to be connected is more, the tolerance loaded down with trivial details to every root cable can be avoided will to be incorporated into length in wire connection cavity respectively, be conducive to cable joint efficiency of the present utility model.
Further technical scheme is:
Because no matter base and upper cover are for security consideration or save material consideration, with upper-part many employings plastic material in prior art, for preventing the connecting thread of base and upper cover premature failure under the defect that plastics are easily aging, described base is fixed with multiple threaded block be connected with upper bonnet bolt or screw for base, described threaded block is the internal thread metallic sheath be embedded on base.
For ensureing 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.
Resist the ability of outside destroy for strengthening upper cover, cover on described and be also provided with reinforcement, preferred 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 that one end is fixedly connected with base or upper cover and is provided with the block structure of fixed bolt hole.
For ensureing the sealing property at penetration pipe place further, the internal thread that reducing through hole is arranged 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 the pulling force being transmitted cable by base or upper cover like this, avoid cable connector to connect under cable tension stress and loosen, the length of described sealing gasket is not less than 3mm.
Contact with each other with the conduction part of electric current stopping adjacent cables for increasing the attachable the end of a thread quantity of the utility model, described terminal block is multiple, and also arranges the dividing plate of promising isolation material between adjacent two terminal blocks.
The utility model has following beneficial effect:
1, the penetration pipe arranged is used for cable and draws from the utility model and introduce, in the version of penetration pipe, through hole between clamping nut and sealing gasket, reducing through hole on lead-in wire cylinder is used for cable through wire connecting portion, the structural relation of clamping nut and sealing gasket, make clamping nut in the process going deep into reducing through hole further, the length of sealing gasket quilt is compressed, sealing gasket is made to be out of shape to its through-hole side like this, on sealing gasket, the aperture of through hole diminishes in the above process, wall contacts that is last and cable realizes the sealing of the junction of terminal box and cable, in above process, the decrement of sealing gasket determines by deeply the go between degree of depth of cylinder of clamping nut, be convenient to obtain sealing gasket like this 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 resists the connector lug of cable between sealing gasket and cable, cable head is avoided to come off under described tension stress, realizing by tightening clamping nut the structure that cable and the utility model junction seal, also helping wiring efficiency of the present utility model.
2, the annexation of penetration pipe and base or upper cover; make to be formed between clamping screw and projection to base or upper cover compression realize penetration pipe base or on cover fixing; namely make penetration pipe base or on the connection that covers for removably connecting, the penetration pipe being convenient to like this change different size is protected with the wiring making the utility model be applicable to larger wire range inner cable.
3, the wire connecting portion arranged is the joint of two cables, conduction panel is the platy structure with good conductive function, as copper coin, aluminium sheet, silver plate etc., the threading opening arranged is used for wearing of cable the end of a thread, the structural relation of threading opening and hold-down bolt, namely the compression be applied on cable connector by hold-down bolt is made to realize cable connector fixing on conduction panel, the compression that can be applied to cable connector due to hold-down bolt is determined by the intensity foot of screw thread, like this, cable interface and the firm annexation of conduction panel is convenient to obtain.
4, the matching relationship wearing pin and wire connecting portion arranged, after making to relax set bolt, threading portion can rotate around the axis wearing pin, like this, after cable introduces wire connection cavity by penetration pipe, rotatable wire connecting portion seat makes threading opening just to the axis of cable, like this, can easily the end of a thread be introduced in threading opening, the fixing of the end of a thread and conduction panel is realized again by hold-down bolt, then by rotating wire connecting portion seat, cable is bending under the external force of penetration pipe and conduction panel, be convenient to obtain the end of a thread and other parts of cable are that 90 ° of angles depart from conduction panel under external force to prevent the end of a thread, above process avoids the prebuckling to the end of a thread before the end of a thread connects, particularly when the end of a thread to be connected is more, the tolerance loaded down with trivial details to every root cable can be avoided will to be incorporated into length in wire connection cavity respectively, be conducive to cable joint efficiency of the present utility model.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation being conducive to an anti-explosion terminal box specific embodiment of wiring efficiency described in the utility model;
Fig. 2 is a kind of structural representation being conducive to an anti-explosion terminal box penetration pipe specific embodiment of wiring efficiency described in the utility model;
Fig. 3 is a kind of structure division cutaway view being conducive to an anti-explosion terminal box penetration pipe specific embodiment of wiring efficiency described in the utility model;
Fig. 4 is a kind of structural representation being conducive to an anti-explosion terminal box terminal block specific embodiment of wiring efficiency described in the utility model;
Fig. 5 is a kind of structural representation being conducive to an anti-explosion terminal box sealing ring specific embodiment of wiring efficiency described in the utility model.
Figure acceptance of the bid note is respectively: 1, base, and 2, wire connecting portion, 21, wire connecting portion seat, 22, terminal block, 221, conduction panel, 222, hold-down bolt, 223, threading opening, 23, dividing plate, 3, penetration pipe, 31, clamping screw, 32, lead-in wire cylinder, 33, protruding, 34, clamping nut, 35, sealing gasket, 4, upper cover, 5, reinforcement, 6, holder, 7, wire connection cavity, 8, threaded block, 9, screw, 10, sealing ring, 11, wear pin, 12, set bolt.
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 Fig. 1 to Fig. 5, a kind of anti-explosion terminal box being conducive to wiring efficiency, the upper cover 4 comprising base 1 in the form of slot and be connected with base 1 bolt or screw, wire connection cavity 7 is formed between described base 1 and upper cover 4, the side of described base 1 is also fixed with at least one penetration pipe 3, wire connecting portion 2 is also provided with in described wire connection cavity 7, what the bottom surface of base 1 is also fixed with axis is positioned at vertical direction wears pin 11, wire connecting portion 2 is provided with and the hole of wearing pin 11 matched in clearance, wire connecting portion 2 is also provided with at least one the set bolt 12 be fixedly connected with base 1 for wire connecting portion 2;
Described penetration pipe 3 comprises the lead-in wire cylinder 32 be fixed on base 1, the axis of lead-in wire cylinder 32 is provided with reducing through hole, one end of reducing through hole is provided with internal thread, sealing gasket 35 is embedded with in described reducing through hole, the clamping nut 34 becoming to be threaded with it is provided with in internal thread hole, one end of clamping nut 34 and the end thereof contacts of sealing gasket 35, and the other end of sealing gasket 35 is fixed relative to lead-in wire cylinder 32 position relationship, sealing gasket 35 with clamping nut 34 is provided with the axis through hole parallel with reducing through-bore axis, lead-in wire cylinder 32 is also provided with external screw thread relative on the other end being connected with clamping nut 34 one end, described external screw thread is provided with the clamping screw 31 becoming to be threaded with it, lead-in wire cylinder 32 is also provided with the projection 33 protruded relative to its outer wall, described lead-in wire cylinder 32 realizes fixing relative to base 1 by protruding 33 relative to the distance adjustment of clamping screw 31,
Described wire connecting portion 2 comprises wire connecting portion seat 21 and at least one terminal block 22, described terminal block 22 is fixed on wire connecting portion seat 21, terminal block 22 comprises conduction panel 221, conduction panel 221 is provided with at least two threading openings 223, the conduction panel 221 of each threading opening 223 side is provided with at least one hold-down bolt 222, the thread segment end of described hold-down bolt 222 is all positioned at threading opening 223, and wire connecting portion 2 is all positioned on wire connecting portion seat 21 with the points of engagement of wire connecting portion 2 with the hole and set bolt 12 of wearing pin 11 matched in clearance.
Concrete, in the present embodiment, the base 1 arranged and upper cover 4 adopt has fabulous impact strength, good stability of the dimension, electrical property, resistance to wear, chemical proof, dyeability, processing and forming and the good ABS engineering plastics of machining, the penetration pipe 3 arranged is made up of 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 Fig. 1 to Fig. 5, because no matter base 1 and upper cover 4 are for security consideration or save material consideration, with upper-part many employings plastic material in prior art, for preventing connecting thread premature failure under the defect that plastics are easily aging of base 1 and upper cover 4, described base 1 is fixed with multiple threaded block 8 be connected with upper cover 4 bolt or screw for base 1, described threaded block 8 is the internal thread metallic sheath be embedded on base 1, threaded block 8 described in the present embodiment is for arranging female copper sheathing, by arrange on upper cover 4 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 Fig. 1 to Fig. 5, for ensureing the sealing property between base 1 and upper cover 4, is also provided with sealing ring 10 between described base 1 and the link end face of upper cover 4.
Embodiment 4:
The present embodiment is further qualified on the basis of above embodiment, and as Fig. 1 to Fig. 5, resist the ability of outside destroy for strengthening upper 4 lids, described upper cover 4 is also provided with reinforcement 5, and preferred reinforcement 5 is arranged on the inner side of upper cover 4.
For ease of installation of the present utility model and fixing, described base 1 or upper cover 4 are also provided with holder 6, and described holder 6 is that one end is fixedly connected with 1, the end or upper cover 4 and is provided with the block structure of fixed bolt hole.
Embodiment 5:
The present embodiment is further qualified on the basis of embodiment 1, and as Fig. 1 to Fig. 5, for ensureing the sealing property at penetration pipe 3 place further, the internal thread that reducing through hole is arranged described lead-in wire cylinder 32 is gas thread.
Embodiment 6:
The present embodiment is further qualified on the basis of above embodiment, as Fig. 1 to Fig. 5, 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 the pulling force being transmitted cable by base 1 or upper cover 4 like this, avoid cable connector to connect under cable tension stress to loosen, the length of described sealing gasket 35 is not less than 3mm.
Contact with each other with the conduction part of electric current stopping adjacent cables for increasing the attachable the end of a thread quantity of the utility model, described terminal block 22 is multiple, and also arranges the dividing plate 23 of promising isolation material between adjacent two terminal blocks 22.
Above content is the further description done the utility model 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 drawn under the technical solution of the utility model, all should be included in protection range of the present utility model.
Claims (8)
1. one kind is conducive to the anti-explosion terminal box of wiring efficiency, the upper cover (4) comprising base (1) in the form of slot and be connected with base (1) bolt or screw, wire connection cavity (7) is formed between described base (1) and upper cover (4), the side of described base (1) is also fixed with at least one penetration pipe (3), it is characterized in that, wire connecting portion (2) is also provided with in described wire connection cavity (7), what the bottom surface of base (1) is also fixed with axis is positioned at vertical direction wears pin (11), wire connecting portion (2) is provided with and the hole of wearing pin (11) matched in clearance, wire connecting portion (2) is also provided with at least one the set bolt (12) be fixedly connected with base (1) for wire connecting portion (2),
Described penetration pipe (3) comprises the lead-in wire cylinder (32) be fixed on base (1), the axis of lead-in wire cylinder (32) is provided with reducing through hole, one end of reducing through hole is provided with internal thread, sealing gasket (35) is embedded with in described reducing through hole, the clamping nut (34) becoming to be threaded with it is provided with in internal thread hole, one end of clamping nut (34) and the end thereof contacts of sealing gasket (35), and the other end of sealing gasket (35) is fixed relative to lead-in wire cylinder (32) position relationship, sealing gasket (35) is provided with the axis through hole parallel with reducing through-bore axis with on clamping nut (34), lead-in wire cylinder (32) is also provided with external screw thread relative on the other end being connected with clamping nut (34) one end, described external screw thread is provided with the clamping screw (31) becoming to be threaded with it, lead-in wire cylinder (32) is also provided with the projection (33) protruded relative to its outer wall, described lead-in wire cylinder (32) realizes fixing relative to base (1) by protruding (33) relative to the distance adjustment of clamping screw (31),
Described wire connecting portion (2) comprises wire connecting portion seat (21) and at least one terminal block (22), described terminal block (22) is fixed on wire connecting portion seat (21), terminal block (22) comprises conduction panel (221), conduction panel (221) is provided with at least two threading openings (223), the conduction panel (221) of each threading opening (223) side is provided with at least one hold-down bolt (222), the thread segment end of described hold-down bolt (222) is all positioned at threading opening (223), the upper hole and set bolt (12) with wearing pin (11) matched in clearance of wire connecting portion (2) is all positioned on wire connecting portion seat (21) with the points of engagement of wire connecting portion (2).
2. a kind of anti-explosion terminal box being conducive to wiring efficiency according to claim 1, it is characterized in that, described base (1) is fixed with multiple threaded block (8) be connected with upper cover (4) bolt or screw for base (1), described threaded block (8) is the internal thread metallic sheath be embedded on base (1).
3. a kind of anti-explosion terminal box being conducive to wiring efficiency according to claim 1, is characterized in that, is also provided with sealing ring (10) between the link end face of described base (1) and upper cover (4).
4. a kind of anti-explosion terminal box being conducive to wiring efficiency according to claim 1, is characterized in that, described upper cover (4) is also provided with reinforcement (5).
5. a kind of anti-explosion terminal box being conducive to wiring efficiency according to claim 1, it is characterized in that, described base (1) or upper cover (4) are also provided with holder (6), and described holder (6) is fixedly connected with base (1) or upper cover (4) and is provided with the block structure of fixed bolt hole for one end.
6. according to a kind of anti-explosion terminal box being conducive to wiring efficiency in claim 1 to 5 described in any one, it is characterized in that, the internal thread that the upper reducing through hole of described lead-in wire cylinder (32) is arranged is gas thread.
7. according to a kind of anti-explosion terminal box being conducive to wiring efficiency in claim 1 to 5 described in any one, it is characterized in that, the length of described sealing gasket (35) is not less than 3mm.
8. according to a kind of anti-explosion terminal box being conducive to wiring efficiency in claim 1 to 5 described in any one, it is characterized in that, described terminal block (22) for multiple, and also arranges the dividing plate (23) of promising isolation material between adjacent two terminal blocks (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420355238.1U CN204167826U (en) | 2014-06-30 | 2014-06-30 | A kind of anti-explosion terminal box being conducive to wiring efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420355238.1U CN204167826U (en) | 2014-06-30 | 2014-06-30 | A kind of anti-explosion terminal box being conducive to wiring efficiency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204167826U true CN204167826U (en) | 2015-02-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420355238.1U Expired - Fee Related CN204167826U (en) | 2014-06-30 | 2014-06-30 | A kind of anti-explosion terminal box being conducive to wiring efficiency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204167826U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037688A (en) * | 2014-06-30 | 2014-09-10 | 四川天微电子有限责任公司 | Anti-explosion junction box capable of guaranteeing wiring efficiency |
| CN109301790A (en) * | 2018-12-03 | 2019-02-01 | 天津市贝斯特防爆电器有限公司 | A kind of high voltage flameproof sea cable case |
-
2014
- 2014-06-30 CN CN201420355238.1U patent/CN204167826U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037688A (en) * | 2014-06-30 | 2014-09-10 | 四川天微电子有限责任公司 | Anti-explosion junction box capable of guaranteeing wiring efficiency |
| CN109301790A (en) * | 2018-12-03 | 2019-02-01 | 天津市贝斯特防爆电器有限公司 | A kind of high voltage flameproof sea cable case |
| CN109301790B (en) * | 2018-12-03 | 2024-03-15 | 天津市贝斯特防爆电器有限公司 | High-pressure explosion-proof type submarine cable box |
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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: 20150218 Termination date: 20150630 |
|
| EXPY | Termination of patent right or utility model |