CN102780187A - Cable connection device and explosion-proof electric control box - Google Patents
Cable connection device and explosion-proof electric control box Download PDFInfo
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- CN102780187A CN102780187A CN2012101848983A CN201210184898A CN102780187A CN 102780187 A CN102780187 A CN 102780187A CN 2012101848983 A CN2012101848983 A CN 2012101848983A CN 201210184898 A CN201210184898 A CN 201210184898A CN 102780187 A CN102780187 A CN 102780187A
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Abstract
The invention provides a cable connection device which is used for an explosion-proof electric control box. The cable connection device comprises a connection part, a sealing ring and a fixation part, wherein a first through hole is formed on the connection part; a second through hole is formed on the fixation part; and in the explosion-proof electric control box, a cable penetrates through the first through hole, the second through hole and a protection plate in the explosion-proof electric control box respectively; the first through hole is a step hole; the sealing ring is arranged on the part with a large inner diameter in the first through hole; the fixation part is detachably connected to one end of the connection part and used for tightly pressing the sealing ring on steps in the step hole, and the other end of the connection part stretches in the through hole of the protection plate and is detachably connected with the protection plate. The cable connection device provided by the invention cannot damage the electric control box during installation because welding is not needed, installation for devices such as an elbow and dragging for the cable are more convenient, and the cable connection device has no need to be installed on the electric control box during a bulge test, so that the damage of the bulge test on the cable connection device is avoided. The invention further provides the explosion-proof electric control box.
Description
Technical field
The present invention relates to the explosion-protection equipment field, in particular to a kind of cable connecting arrangement and a kind of explosion-proof electric cabinet.
Background technology
Suppress, be meant and utilizing High-Pressure Water that explosion-proof apparatus is washed, to detect the sealing of solder joint on the explosion-proof apparatus.
The structure of explosion-proof electric cabinet is as shown in Figure 1; Shown in the figure is a bigger chamber of electric cabinet; Electric cabinet also has a less chamber behind, and cable can pass the bigger chamber that can see among the backplate 91 entering figure by less from behind chamber in actual use.Because requirement of explosion proof, need pass backplate 91 backs at cable and pass the throughhole portions of cable on to backplate 91 and seal.In the existing correlation technique, adopts communicating joint 92 as shown in Figure 2 to seal, adopt the mode of welding to be connected afterwards between communicating joint 92 and the backplate 91 at parts such as connecting bends, so when carrying out bulge test, just need communicating joint 92 be welded on the backplate 91.
This kind communicating joint structure has following defective:
1) because communicating joint is to be welded on the electric cabinet, makes the impaired distortion of electric cabinet during welding easily;
Communicating joint damages under High-Pressure Water easily when 2) suppressing;
When 3) device such as elbow and dilatory cable being installed, owing to communicating joint is welded on the backplate, so be the equal of that whole electric cabinet is operated, operation is convenient inadequately;
4) owing to need the through hole on the backplate be blocked when suppressing, but through hole goes out and welded communicating joint, formed protruding structure, and shutoff is difficulty comparatively, and the frock that when suppressing, will be used for the shutoff through hole through regular meeting in the practice is washed open, has reduced the efficient of carrying out of test.
Summary of the invention
Technical problem to be solved by this invention is; A kind of new cable connecting arrangement is provided; Can not damage electric cabinet during installation; More convenient when device such as elbow and dilatory cable are installed, and when doing bulge test, need cable connecting arrangement be installed on the electric cabinet, avoid bulge test that cable connecting arrangement is caused damage.
In view of this, the invention provides a kind of cable connecting arrangement, be used for explosion-proof electric cabinet; Said connecting portion is provided with first through hole; Said fixed part is provided with second through hole, and in explosion-proof electric cabinet, said cable passes the backplate in said first through hole, said second through hole and the said explosion-proof electric cabinet respectively; Said cable connecting arrangement comprises connecting portion, sealing ring and fixed part; Wherein, said first through hole is a stepped hole, and said sealing ring is arranged on the bigger part of internal diameter in said first through hole; Said fixed part removably is connected to an end of said connecting portion and said sealing ring is pressed on the step in the said stepped hole, and the other end of said connecting portion stretches in the through hole of said backplate and with said backplate and removably is connected.
In this technical scheme; Because the cable connecting arrangement among the present invention is to be used for explosion-proof electric cabinet, causes security incident in order to prevent that electric spark from bursting out, the sealing property of cable connecting arrangement there is the requirement of comparison strictness; So in first through hole, sealing ring is set; Can guarantee the sealing property of cable connecting arrangement better, improve its reliability, and the internal diameter that sealing ring can also reduce first throughhole portions is set; Realize fastening cable through cable is compressed, back and forth string is moving in cable connecting arrangement thereby prevent cable; Connected mode between connecting portion and the backplate is for removably being connected, and promptly the connected mode between cable connecting arrangement and the backplate need not welded for removably being connected, so can not damage electric cabinet when installing; And when device such as elbow and dilatory cable are installed; Can be installed to elbow and the assembling of cable connecting arrangement spare on the backplate more earlier; In the time will drawing cable, also can earlier cable be passed cable connecting arrangement is installed to cable connecting arrangement on the backplate again; The installation of elbow and cable are dilatory all convenient, can improve the efficient that the whole operation process is installed; Simultaneously; Because being connected between cable connecting arrangement and the backplate is detachable, need not weld, therefore need not test need not be installed on the electric cabinet when suppressing doing; Also just can not cause cable connecting arrangement to damage because of the impact of High-Pressure Water; Reduced cost, also because of avoiding because the damage of cable connecting arrangement is changed cable connecting arrangement again and is carried out consequence such as bulge test again, improved the efficient of bulge test effectively.
Preferably, be connected through bolt between said fixed part and the said connecting portion, bolted connected mode simple, general-purpose, with low cost.
Preferably, said cable connecting arrangement also comprises packing ring, is arranged between said fixed part and the said sealing ring, is used to reduce the pressure of said fixed part to said sealing ring.In this technical scheme, also between fixed part and sealing ring, packing ring is set, can reduce the pressure of fixed part to sealing ring, sealing ring being carried out can reduce the suffered pressure of sealing ring in fully fixing, prolong the useful life of sealing ring.
Preferably, said cable connecting arrangement also comprises closure plate, is used for when no cable, being arranged on said first through hole of shutoff between said fixed part and the said packing ring.In improving technical scheme; Can also when no cable, be arranged between fixed part and the packing ring closure plate is set; First through hole is carried out shutoff, again cable connecting arrangement is installed on the backplate, can avoid extraneous dust and other impurities to enter in the electric cabinet chamber behind through the through hole on the backplate.
Preferably, the part that stretches in the said backplate of said connecting portion is fixedly connected through screw thread with said backplate.In this technical scheme, directly can realize removably connecting between connecting portion and the backplate through on the outer peripheral face that stretches into the part in the backplate at connecting portion screw thread being set, simple and practical.
Preferably, said screw thread is a fine thread, can realize better sealing property, and promptly explosion-proof effect is better, better practical requirement.
Preferably, said connecting portion also is fixedly connected with said backplate through at least one first bolt.In this technical scheme, also use first bolt that being connected between connecting portion and the backplate fixed, make to be connected more reliably between connecting portion and the backplate, improved the reliability of whole device.
Preferably, said connecting portion stretches into through hole interference fit on part and the said backplate in the said backplate, is connected through at least two second bolt between said connecting portion and the said backplate.
In this technical scheme, the part that connecting portion stretches in the backplate is the light face, and screw thread is not set; Processing is simple; Cost is low, adopts interference fit then can guarantee the sealing property of junction between connecting portion and the backplate well, fixes through at least two second bolts again; Can guarantee the reliability that is connected between connecting portion and the backplate, for example the cable connecting arrangement shown in the figure then is provided with second bolt.
Preferably, said at least two second bolts evenly distribute around said connecting portion, make the connecting portion stress equalization like this, and are more reliable to fixing of connecting portion.
The present invention also provides a kind of explosion-proof electric cabinet; Comprise first chamber, second chamber and backplate; Cable passes said backplate at said explosion-proof electric cabinet in said first chamber and gets into said second chamber, after said cable passes the said through hole of said backplate through technique scheme in each described cable connecting arrangement said through hole is sealed.
In sum, the connected mode between connecting portion and the backplate is for removably being connected, and promptly the connected mode between cable connecting arrangement and the backplate need not welded for removably being connected, so can not damage electric cabinet when installing; And when device such as elbow and dilatory cable are installed; Can be installed to elbow and the assembling of cable connecting arrangement spare on the backplate more earlier; In the time will drawing cable, also can earlier cable be passed cable connecting arrangement is installed to cable connecting arrangement on the backplate again; The installation of elbow and cable are dilatory all convenient, can improve the efficient that the whole operation process is installed; Simultaneously; Because being connected between cable connecting arrangement and the backplate is detachable, need not weld, therefore need not test need not be installed on the electric cabinet when suppressing doing; Also just can not cause cable connecting arrangement to damage because of the impact of High-Pressure Water; Reduced cost, also because of avoiding because the damage of cable connecting arrangement is changed cable connecting arrangement again and is carried out consequence such as bulge test again, improved the efficient of bulge test effectively.
Description of drawings
Fig. 1 is the sketch map of a kind of explosion-proof electric cabinet in the existing correlation technique;
Fig. 2 is the sketch map that is connected of communicating joint and backplate among Fig. 1;
Fig. 3 is that the master according to the cable connecting arrangement of first embodiment of the invention looks sketch map;
Fig. 4 is that the A of cable connecting arrangement among Fig. 1 is to cutaway view;
Fig. 5 is the schematic top plan view of cable connecting arrangement among Fig. 1;
Fig. 6 is that cable connecting arrangement is installed in the sketch map on the backplate among Fig. 1;
Fig. 7 is that the master according to the cable connecting arrangement of second embodiment of the invention looks sketch map;
Fig. 8 is that the B of cable connecting arrangement among Fig. 7 is to cutaway view;
Fig. 9 is the schematic top plan view of cable connecting arrangement among Fig. 7.
Embodiment
In order more to be expressly understood above-mentioned purpose of the present invention, feature and advantage, the present invention is further described in detail below in conjunction with accompanying drawing and embodiment.
A lot of details have been set forth in the following description so that make much of the present invention; But; The present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention does not receive the restriction of following disclosed specific embodiment.
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.Need to prove that under the situation of not conflicting, the application's embodiment and the characteristic among the embodiment can make up each other.
Shown in figure, cable connecting arrangement 10 provided by the invention is used for explosion-proof electric cabinet; Cable connecting arrangement 10 comprises connecting portion 2, sealing ring 1 and fixed part 3; Connecting portion 2 is provided with first through hole 21, and fixed part 3 is provided with second through hole 31, in explosion-proof electric cabinet; Cable passes the backplate 4 in first through hole 21, second through hole 31 and the explosion-proof electric cabinet respectively; Wherein, first through hole 21 is a stepped hole, and sealing ring 1 is arranged on the bigger part of internal diameter in first through hole 21; Fixed part 3 removably is connected to an end of connecting portion 2 and sealing ring 1 is pressed on the step 22 in first through hole 21, and the other end of connecting portion 2 stretches in the through hole of backplate 4 and with backplate 4 and removably is connected.
In this technical scheme; Because the cable connecting arrangement among the present invention is to be used for explosion-proof electric cabinet, causes security incident in order to prevent that electric spark from bursting out, the sealing property of cable connecting arrangement there is the requirement of comparison strictness; So sealing ring 1 is set in first through hole; Can guarantee the sealing property of cable connecting arrangement better, improve its reliability, and the internal diameter that sealing ring 1 can also reduce first through hole 21 is set; Realize fastening cable through cable is compressed, back and forth string is moving in cable connecting arrangement thereby prevent cable.
Connected mode between connecting portion 2 and the backplate 4 is for removably being connected; Be cable connecting arrangement 10 with backplate 4 between connected mode for removably being connected; For example can through bolt connect or directly be provided with on the connecting portion 2 with backplate 4 on the external screw thread that cooperates of through hole etc.; Need not weld, so can not damage electric cabinet when installing.
And when device such as elbow and dilatory cable are installed; Can earlier elbow and 10 assemblings of cable connecting arrangement be installed on the backplate 4 again; In the time will drawing cable, also can earlier cable be passed cable connecting arrangement 10 is installed to cable connecting arrangement 10 on the backplate 4 again; The installation of elbow and cable are dilatory all convenient, can improve the efficient that the whole operation process is installed.
Simultaneously; Because being connected between cable connecting arrangement 10 and the backplate 4 is detachable, need not weld, therefore need or not be installed on the electric cabinet doing to test when suppressing; Also just can not cause cable connecting arrangement 10 to damage because of the impact of High-Pressure Water; Reduced cost, also because of avoiding because the damage of cable connecting arrangement 10 is changed cable connecting arrangement 10 again and is carried out consequence such as bulge test again, improved the efficient of bulge test effectively.
Particularly, can be connected through bolt between fixed part 3 and the connecting portion 2, bolted connected mode simple, general-purpose, with low cost.
Further, also between fixed part 3 and sealing ring 1, packing ring 5 is set, can reduces the pressure of 3 pairs of sealing rings 1 of fixed part, sealing ring 1 is being carried out to reduce in fully fixing the suffered pressure of sealing ring 1, prolong the useful life of sealing ring 1.
Can also when no cable, be arranged between fixed part 3 and the packing ring 5 closure plate 6 is set; First through hole 21 is carried out shutoff; Again cable connecting arrangement 10 is installed on the backplate 4, can avoids extraneous dust and other impurities to enter in the electric cabinet chamber behind through the through hole on the backplate 4.
In a kind of specific embodiment; Extremely shown in Figure 5 like Fig. 3; The part that connecting portion 2 stretches in the backplate 4 is fixedly connected through screw thread 23 with backplate 4; Directly can realize removably connecting between connecting portion 2 and the backplate 4 through on the outer peripheral face that stretches into the part in the backplate 4 at connecting portion 2 screw thread 23 being set, simple and practical.Wherein, it is obvious that, and the through hole on the backplate 4 also need be provided with the internal thread that matches with screw thread 23 certainly, repeats no more.
As a kind of preferred implementation, screw thread 23 is a fine thread, can realize better sealing property, and promptly explosion-proof effect is better, better practical requirement.
Further, connecting portion 2 also is fixedly connected with backplate 4 through at least one first bolt 7.In this technical scheme, also use being connected between 7 pairs of connecting portions 2 of first bolt and the backplate 4 to fix, make to be connected more reliably between connecting portion 2 and the backplate 4, improved the reliability of whole device.
In conjunction with the above, the cable connecting arrangement 10 that is as shown in Figure 6 in the present embodiment is installed in the sketch map on the backplate 4.
In another kind of specific embodiment, to shown in Figure 9, connecting portion 2 stretches into through hole interference fit on part and the backplate 4 in the backplate 4 like Fig. 7, is fixedly connected through at least two second bolts 8 between connecting portion 2 and the backplate 4.
In the present embodiment, the outer peripheral face 24 that connecting portion 2 stretches into the part in the backplate 4 is the light face, and screw thread is not set; Processing is simple; Cost is low, adopts interference fit then can guarantee the sealing property of junction between connecting portion 2 and the backplate 4 well, fixes through at least two second bolts 8 again; Can guarantee the reliability that is connected between connecting portion 2 and the backplate 4, for example the cable connecting arrangement shown in the figure then is provided with 4 second bolts 8.
As a kind of preferred implementation, second bolt 8 evenly distributes around connecting portion 2, makes connecting portion 2 stress equalizations like this, and is more reliable to fixing of connecting portion.
The present invention also provides a kind of explosion-proof electric cabinet; Comprise first chamber, second chamber and backplate; Cable passes backplate at explosion-proof electric cabinet in first chamber and gets into second chamber; After cable passes the through hole of backplate through technique scheme in each described cable connecting arrangement through hole is sealed; Said cable connecting arrangement is applied in the explosion-proof electric cabinet among the present invention, can obtains the embodiment of explosion-proof electric cabinet provided by the present invention, it obviously should have the corresponding beneficial effect of the cable connecting arrangement described in the technique scheme.
In sum, the connected mode between connecting portion and the backplate is for removably being connected, and promptly the connected mode between cable connecting arrangement and the backplate need not welded for removably being connected, so can not damage electric cabinet when installing; And when device such as elbow and dilatory cable are installed; Can be installed to elbow and the assembling of cable connecting arrangement spare on the backplate more earlier; In the time will drawing cable, also can earlier cable be passed cable connecting arrangement is installed to cable connecting arrangement on the backplate again; The installation of elbow and cable are dilatory all convenient, can improve the efficient that the whole operation process is installed; Simultaneously; Because being connected between cable connecting arrangement and the backplate is detachable, need not weld, therefore need not test need not be installed on the electric cabinet when suppressing doing; Also just can not cause cable connecting arrangement to damage because of the impact of High-Pressure Water; Reduced cost, also because of avoiding because the damage of cable connecting arrangement is changed cable connecting arrangement again and is carried out consequence such as bulge test again, improved the efficient of bulge test effectively.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a cable connecting arrangement is used for explosion-proof electric cabinet, it is characterized in that; Said cable connecting arrangement comprises connecting portion (2), sealing ring (1) and fixed part (3), and said connecting portion (1) is provided with first through hole (21), and said fixed part (3) is provided with second through hole (31); In explosion-proof electric cabinet; Said cable passes the backplate (4) in said first through hole (21), said second through hole (31) and the said explosion-proof electric cabinet respectively, wherein
Said first through hole (21) is a stepped hole; Said sealing ring (1) is arranged on the bigger part of said first through hole (21) internal diameter; Said fixed part (3) removably is connected to an end of said connecting portion (2) and said sealing ring (1) is pressed on the step (22) in said first through hole (21), and the other end of said connecting portion (2) stretches in the through hole of said backplate (4) and with said backplate (4) and removably is connected.
2. cable connecting arrangement according to claim 1 is characterized in that, is connected through bolt between said fixed part (3) and the said connecting portion (2).
3. cable connecting arrangement according to claim 1 is characterized in that, also comprises packing ring (5), is arranged between said fixed part (3) and the said sealing ring (1), is used to reduce the pressure of said fixed part (3) to said sealing ring (1).
4. cable connecting arrangement according to claim 1 is characterized in that, also comprises closure plate (6), is used for when no cable, being arranged on said first through hole of shutoff (21) between said fixed part (3) and the said packing ring (5).
5. according to each described cable connecting arrangement in the claim 1 to 4, it is characterized in that the part that said connecting portion (2) stretches in the said backplate (4) is fixedly connected through screw thread (23) with said backplate (4).
6. cable connecting arrangement according to claim 5 is characterized in that, said screw thread (23) is a fine thread.
7. cable connecting arrangement according to claim 5 is characterized in that, said connecting portion (2) also is fixedly connected with said backplate (4) through at least one first bolt (7).
8. according to each described cable connecting arrangement in the claim 1 to 4; It is characterized in that; Part and said backplate (4) that said connecting portion (2) stretches in the said backplate (4) are gone up the through hole interference fit, are fixedly connected through at least two second bolts (8) between said connecting portion (2) and the said backplate (4).
9. cable connecting arrangement according to claim 8 is characterized in that, said at least two second bolts (8) evenly distribute around said connecting portion (2).
10. explosion-proof electric cabinet; Comprise first chamber, second chamber and backplate; Cable passes said backplate at said explosion-proof electric cabinet in said first chamber and gets into said second chamber; It is characterized in that, after said cable passes the said through hole of said backplate through said through hole being sealed like each described cable connecting arrangement in the claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101848983A CN102780187A (en) | 2012-06-06 | 2012-06-06 | Cable connection device and explosion-proof electric control box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101848983A CN102780187A (en) | 2012-06-06 | 2012-06-06 | Cable connection device and explosion-proof electric control box |
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| Publication Number | Publication Date |
|---|---|
| CN102780187A true CN102780187A (en) | 2012-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101848983A Pending CN102780187A (en) | 2012-06-06 | 2012-06-06 | Cable connection device and explosion-proof electric control box |
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| CN (1) | CN102780187A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319569A (en) * | 2014-10-17 | 2015-01-28 | 中航光电科技股份有限公司 | Flame-proof connector socket |
| CN104319569B (en) * | 2014-10-17 | 2017-01-04 | 中航光电科技股份有限公司 | Flame proof connector body |
| CN111697514A (en) * | 2020-05-09 | 2020-09-22 | 哈尔滨中兴继电科技有限公司 | Wiring connection device |
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| CN2921589Y (en) * | 2006-06-13 | 2007-07-11 | 深圳市海洋王投资发展有限公司 | Antiexplosive working lamp |
| CN101358740A (en) * | 2008-09-09 | 2009-02-04 | 江苏大江石油科技有限公司 | High voltage insulation spark plug and explosion suppression junction box of ignition cable interface |
| CN101945557A (en) * | 2010-09-14 | 2011-01-12 | 三一重型装备有限公司 | Anti-explosion electric cabinet |
| CN102231217A (en) * | 2011-06-03 | 2011-11-02 | 哈尔滨东方报警设备开发有限公司 | Acousto-optic explosion-proof alarm device |
| CN202145553U (en) * | 2011-06-16 | 2012-02-15 | 天津百利二通阀门电装有限公司 | Cable direct introducing device |
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2012
- 2012-06-06 CN CN2012101848983A patent/CN102780187A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2921589Y (en) * | 2006-06-13 | 2007-07-11 | 深圳市海洋王投资发展有限公司 | Antiexplosive working lamp |
| CN101358740A (en) * | 2008-09-09 | 2009-02-04 | 江苏大江石油科技有限公司 | High voltage insulation spark plug and explosion suppression junction box of ignition cable interface |
| CN101945557A (en) * | 2010-09-14 | 2011-01-12 | 三一重型装备有限公司 | Anti-explosion electric cabinet |
| CN102231217A (en) * | 2011-06-03 | 2011-11-02 | 哈尔滨东方报警设备开发有限公司 | Acousto-optic explosion-proof alarm device |
| CN202145553U (en) * | 2011-06-16 | 2012-02-15 | 天津百利二通阀门电装有限公司 | Cable direct introducing device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319569A (en) * | 2014-10-17 | 2015-01-28 | 中航光电科技股份有限公司 | Flame-proof connector socket |
| CN104319569B (en) * | 2014-10-17 | 2017-01-04 | 中航光电科技股份有限公司 | Flame proof connector body |
| CN111697514A (en) * | 2020-05-09 | 2020-09-22 | 哈尔滨中兴继电科技有限公司 | Wiring connection device |
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Application publication date: 20121114 |