CN105006391A - Screw type horn mouth locking device - Google Patents
Screw type horn mouth locking device Download PDFInfo
- Publication number
- CN105006391A CN105006391A CN201410162295.2A CN201410162295A CN105006391A CN 105006391 A CN105006391 A CN 105006391A CN 201410162295 A CN201410162295 A CN 201410162295A CN 105006391 A CN105006391 A CN 105006391A
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- CN
- China
- Prior art keywords
- solid
- fixing body
- plane
- horn mouth
- locking device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The invention discloses a device preventing a horn mouth from loosening. The device comprises an upper fixing body and a lower fixing body; the upper fixing body and the lower fixing body are connected in an end-to-end manner so as to form a loop; the upper surface of the upper fixing body is a plane provided with an upper flange protruding inwards; the lower surface of the lower fixing body is a plane provided with a lower flange protruding inwards. After installation, the plane of the upper fixing body and the plane of the lower fixing body are tightly attached to two parallel surfaces of a hexagonal horn mouth so as to prevent the horn mouth from rotation, and no tool can be used for operation. At the same time, the surfaces, which face outwards, of the upper flange and the lower flange abut against the inner surface of the horn mouth, and the horn mouth blocks the upper flange and the lower flange so that the upper fixing body and the lower fixing body are not disengaged. Dismounting cannot be carried out unless a special tool is used to open a locking pin.
Description
Technical field
The present invention relates to a kind of device preventing loosening.
Background technology
According to relevant authority department statistics, electric spark coal mine gas from explosion ignite burning things which may cause a fire disaster many factors in rank first, be about 70%.Prevent " electrically losing quick-fried " to produce electric spark and seem particularly important for preventing gas explosion.According to Shanxi Province " safety quality standard construction standard and examination grading way " (coal peace in Shanxi sends out [2012] No. 715), spiral loudspeaker nozzle should have locking device, to realize the requirement of GB3836.1 appendix A .2.5.Spiral loudspeaker nozzle is a kind of cable entry, and spiral loudspeaker nozzle is hexagon cylinder, likeness in form hexagonal (hexagon)nut, centre is hollow, can lead-in cable, and loudspeaker nozzle is arranged on flame-proof switch by thread, it is inner that flame-proof switch introduced by cable, completes electric function.If loudspeaker nozzle is not tightened or loosened, namely flame-proof switch loses explosion-proof performance, and the gas of its inside is lighted, and can cause the outside gas explosion of flame-proof switch.Present way is that the instruments such as the spiral loudspeaker nozzle spanner of mining explosion-proof type switch are directly tightened.Do not retrain by other because spiral loudspeaker nozzle exposes, longevity of service is long afterwards, easily naturally loosening, also easily by people for turning, do not prevent means preferably.
Summary of the invention
The object of this invention is to provide a kind of device preventing loudspeaker nozzle from loosening reliably.
Technical scheme of the present invention is: comprise solid and lower solid, and upper solid and lower solid join end to end and connect rear formation one round; Be plane above upper solid, this plane is provided with inwardly protruded upper fin, and be plane below lower solid, this plane is provided with inwardly protruded lower fin.
Be spirally connected after upper solid is chimeric with lower solid top dentation again and be integrated, upper solid and lower solid bottom are connected as one by lockweight.
Because solid upper in the present invention is connected rear formation one round with lower solid, the plane of upper solid and the plane of lower solid are equipped with upper and lower fin, therefore, after the present invention installs, upper surface and lower surface are near two parallel surfaces of hexagonal loudspeaker nozzle, limit the rotation of loudspeaker nozzle, any instrument can not operate.Meanwhile, the outside one side of upper and lower fin is against the medial surface of loudspeaker nozzle, and loudspeaker nozzle has blocked upper fin and lower fin, and solid and lower solid can not be deviate from.During dismounting, just can carry out after lockweight must being opened with specific purpose tool.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the STRUCTURE DECOMPOSITION schematic diagram of Fig. 1.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail, but does not form any limitation of the invention.Shown in Fig. 1 and Fig. 2, the present invention includes solid 1 and lower solid 2, upper solid 1 and lower solid 2 join end to end and connect rear formation one round; Upper solid 1 is plane above, and this plane is provided with inwardly protruded upper fin 3, and lower solid 2 is plane below, and this plane is provided with inwardly protruded lower fin 4.Be spirally connected after upper solid 1 is chimeric with lower solid 2 top dentation again and be integrated, upper solid 1 is connected as one by lockweight with lower solid 2 bottom.Lockweight is prior art, does not repeat them here.During installation, upper solid 1 and lower solid 2 are snapped in loudspeaker nozzle, ensure that on loudspeaker nozzle, plane is pressed close to mutually with upper solid 1 plane, lower plane is pressed close to mutually with the plane of lower solid 2, and upper fin 3 and the outside one side of lower fin 4 are against on the medial surface of loudspeaker nozzle, then, upper solid 1 and lower solid 2 end to end, form a round after connecting, be spirally connected again and be integrated after upper solid 1 is chimeric with lower solid 2 top dentation, upper solid 1 is connected as one by lockweight with lower solid 2 bottom.During dismounting, just can disassemble after lockweight must being opened with specific purpose tool.
Claims (2)
1. a spiral loudspeaker nozzle locking device, is characterized in that: comprise solid (1) and lower solid (2), and upper solid (1) and lower solid (2) join end to end and connect rear formation one round; Upper solid (1) is plane above, and this plane is provided with inwardly protruded upper fin (3), and lower solid (2) is plane below, and this plane is provided with inwardly protruded lower fin (4).
2. spiral loudspeaker nozzle locking device according to claim 1, is characterized in that: being spirally connected after upper solid (1) is chimeric with lower solid (2) top dentation is integrated again, and upper solid (1) and lower solid (2) bottom are connected as one by lockweight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410162295.2A CN105006391A (en) | 2014-04-22 | 2014-04-22 | Screw type horn mouth locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410162295.2A CN105006391A (en) | 2014-04-22 | 2014-04-22 | Screw type horn mouth locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105006391A true CN105006391A (en) | 2015-10-28 |
Family
ID=54379023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410162295.2A Pending CN105006391A (en) | 2014-04-22 | 2014-04-22 | Screw type horn mouth locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105006391A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7115822B1 (en) * | 2006-02-21 | 2006-10-03 | Joy Mm Delaware, Inc. | Indirect entry cable gland assembly |
| DE102007030450A1 (en) * | 2007-06-29 | 2009-01-02 | Robert Bosch Gmbh | Terminal box for electrical machine i.e. electric motor, has intermediate piece detachably arranged on box by retaining unit and comprising screw thread in order to fasten cable to piece, so that cable is guided through opening |
| CN201523160U (en) * | 2009-10-12 | 2010-07-07 | 山西全安新技术开发有限公司 | Anti-loose device of mining switch loudspeaker nozzle |
| CN203250985U (en) * | 2013-05-29 | 2013-10-23 | 山西华鑫电气有限公司 | Screw-type mouthpiece with anti-loosing device |
| CN203850170U (en) * | 2014-04-22 | 2014-09-24 | 田清泉 | Spiral horn mouth locking device |
-
2014
- 2014-04-22 CN CN201410162295.2A patent/CN105006391A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7115822B1 (en) * | 2006-02-21 | 2006-10-03 | Joy Mm Delaware, Inc. | Indirect entry cable gland assembly |
| DE102007030450A1 (en) * | 2007-06-29 | 2009-01-02 | Robert Bosch Gmbh | Terminal box for electrical machine i.e. electric motor, has intermediate piece detachably arranged on box by retaining unit and comprising screw thread in order to fasten cable to piece, so that cable is guided through opening |
| CN201523160U (en) * | 2009-10-12 | 2010-07-07 | 山西全安新技术开发有限公司 | Anti-loose device of mining switch loudspeaker nozzle |
| CN203250985U (en) * | 2013-05-29 | 2013-10-23 | 山西华鑫电气有限公司 | Screw-type mouthpiece with anti-loosing device |
| CN203850170U (en) * | 2014-04-22 | 2014-09-24 | 田清泉 | Spiral horn mouth locking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151028 |
|
| WD01 | Invention patent application deemed withdrawn after publication |