CN105480904A - Hydraulic loudspeaker for explosion-proof forklift truck - Google Patents
Hydraulic loudspeaker for explosion-proof forklift truck Download PDFInfo
- Publication number
- CN105480904A CN105480904A CN201511033485.5A CN201511033485A CN105480904A CN 105480904 A CN105480904 A CN 105480904A CN 201511033485 A CN201511033485 A CN 201511033485A CN 105480904 A CN105480904 A CN 105480904A
- Authority
- CN
- China
- Prior art keywords
- sounding
- housing
- hole
- cavity
- reed
- 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.)
- Granted
Links
- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 58
- 238000002347 injection Methods 0.000 claims abstract description 10
- 239000007924 injection Substances 0.000 claims abstract description 10
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 7
- 239000003921 oil Substances 0.000 claims abstract description 5
- 238000004880 explosion Methods 0.000 claims description 26
- 238000007789 sealing Methods 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 9
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 description 7
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 206010016256 fatigue Diseases 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/07504—Accessories, e.g. for towing, charging, locking
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention discloses a hydraulic loudspeaker for an explosion-proof forklift truck. The hydraulic loudspeaker comprises an injection shell and the like, wherein the injection shell is provided with a hydraulic oil tube joint, a nozzle, a jet orifice and a projection; the projection is embedded in a shell; the injection shell is connected with the interior of the shell through a bolt; the shell is provided with an oil return tube joint; a through hole is arranged in the bottom of the shell; the through hole is provided with an internal thread; the shell is fixed with a sounding cavity; the opening of the sounding cavity is outward; an external thread is arranged on the outer surface of the sounding cavity; a thread through hole is arranged in the bottom of the sounding cavity; a vibration reed is located outside the sounding cavity and fixed on a bottom plane outside the sounding cavity; a sounding reed is located in a sounding shell and fixed on a bottom plane in the sounding cavity; a through hole is arranged in the bottom of a loudspeaker opening; one open end of the sounding cavity penetrates through the through hole; a nut is matched with the sounding cavity to fix the loudspeaker opening between the shell and the nut; and the orientations of the loudspeaker opening, and the opening of the sounding shell, are the same.
Description
Technical field
The present invention relates to a kind of explosion-proof vehicle loudspeaker, particularly a kind of explosion proof forklift hydraulic pressure loudspeaker.
Background technology
Explosion-proof vehicle is operated in flammable explosive gas or dust atmosphere more, explosion-proof vehicle requires that circuit operationally not easily produces electro spark, and to pass into electric current during the work of existing dynamic loud-speaker in dynamic loud-speaker be that variable-current very easily causes electric conductor form induced electric motive force thus cause spark, film vibration sounding is moved during sound horn, the working effect that flame proof process can affect again dynamic loud-speaker is done on loudspeaker, so dynamic loud-speaker is not suitable for using on explosion-proof vehicle, present part explosion-proof vehicle uses air pressure horn to replace dynamic loud-speaker, for itself there being the explosion-proof vehicle of source of the gas, this is that one is comparatively reliable, effective method, can for the explosion proof forklift itself not having source of the gas, just need extra interpolation source of the gas or use manual source of the gas, extra interpolation source of the gas can increase cost and explosion-proof engine cabin spaces narrow and small interpolation source of the gas is comparatively difficult, use manual source of the gas can increase the work capacity of chaufeur, make chaufeur fatiguability, and explosion proof forklift driving needs chaufeur energy high concentration, therefore add manual source of the gas neither a kind of good terms of settlement, so use air pressure horn not to be a kind of method preferably for explosion proof forklift.
Summary of the invention
The technical problem to be solved in the present invention is to provide the simple a kind of explosion proof forklift hydraulic pressure loudspeaker of a kind of structure.
In order to solve the problems of the technologies described above, the invention provides a kind of explosion proof forklift hydraulic pressure loudspeaker: comprise injection housing, housing, sounding cavity, vibrating reed, sounding reed, exit skirt and nut, described injection housing is provided with hydraulic oil pipe joint, nozzle, jet orifice and projection, described projection embeds in described housing, spray in housing and described housing and be bolted, described housing is provided with oil returning pipe joint, described housing bottom is provided with through hole, described through hole is provided with negative thread, described housing and described sounding cavity are fixed, described sounding cavity hatch outwardly, described sounding chamber outer surface is provided with outside thread, described sounding cavity bottom is provided with tapped through hole, described vibrating reed is positioned at described sounding containment portion and is fixed on described sounding containment portion base plane, described sounding reed is positioned at described sounding enclosure interior and is fixed on described sounding inside cavity base plane, be provided with through hole bottom described exit skirt, sounding cavity hatch one end is through this through hole, and nut coordinates fixing exit skirt between housing and nut with sounding cavity, described exit skirt and described sounding shell nozzle are towards consistent.
Improvement as a kind of explosion proof forklift hydraulic pressure loudspeaker of the present invention: described jet orifice is rectangular opening, and described jet orifice just to vibrating reed, and has certain distance with vibrating reed.
Further improvement as a kind of explosion proof forklift hydraulic pressure loudspeaker of the present invention: described vibrating reed is being just isoceles triangle type tip-angled shape to one end of jet orifice, and its wedge angle is degree to degree.
Further improvement as a kind of explosion proof forklift hydraulic pressure loudspeaker of the present invention: described vibrating reed and sounding reed () bottom are provided with permanent seat, and pedestal is provided with a through hole.
Further improvement as a kind of explosion proof forklift hydraulic pressure loudspeaker of the present invention: vibrating reed to be coordinated with sounding housing bottom tapped bore by bolt and is fixed on described sounding housing bottom, described sounding reed to be coordinated with nut by bolt and is fixed on sounding enclosure interior bottom end face.
Further improvement as a kind of explosion proof forklift hydraulic pressure loudspeaker of the present invention: through hole negative thread, outside face outside thread, the described screw thread of sounding housing bottom tapped through hole and the screw thread of bolt are sealing thread.
Usefulness of the present invention:
Explosion proof forklift hydraulic pressure loudspeaker, adopt the original hydraulic power of explosion proof forklift to be that power does not need additionally to add propulsion source; This anti-explosion loudspeaker adopts hydraulic power, operationally can not produce electro spark, not have potential safety hazard; Described housing and described sounding housing connecting thread are sealing thread, and bolt and the sounding housing bottom tapped through hole of fixing vibrating reed are sealing thread, thus ensure that this system sealing property operationally; The present invention's size of sounding is adjustable, therefore can use in a variety of contexts.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Fig. 1 is a kind of explosion proof forklift hydraulic pressure of the present invention horn structure schematic diagram;
Fig. 2 is a kind of explosion proof forklift hydraulic pressure of the present invention horn structure generalized section.
Detailed description of the invention
Embodiment 1, Fig. 1 ~ Fig. 2 gives a kind of explosion-proof vehicle hydraulic pressure loudspeaker, comprise and spray housing 2, housing 4, sounding cavity 1, vibrating reed 8, sounding reed 10, exit skirt 5 and nut 12, described injection housing 2 is provided with hydraulic oil pipe joint 1, nozzle 7, jet orifice 6 and projection 13, described projection 13 embeds in described housing 4, spray housing 2 and be connected by bolt 3 with in described housing 4, described housing 4 is provided with oil returning pipe joint 9, through hole 15 is provided with bottom described housing 4, described through hole 15 is provided with negative thread, described housing 4 is fixed with described sounding cavity 11, described sounding cavity 11 opening outwardly, described sounding cavity 11 outside face 14 is provided with outside thread, tapped through hole is provided with bottom described sounding cavity 11, described vibrating reed 8 is positioned at described sounding cavity 11 outside and is fixed on described sounding cavity 11 exterior base plane, described sounding reed 10 is positioned at described sounding housing 11 inside and is fixed on described sounding cavity 11 interior bottom portion plane, be provided with through hole bottom described exit skirt 5, sounding cavity 11 open at one end is through this through hole, and nut 12 coordinates fixing exit skirt 5 between housing 4 and nut 12 with sounding cavity 11, described exit skirt 5 and described sounding housing 11 opening are towards consistent, described jet orifice 6 is rectangular opening, and described jet orifice 6 just to vibrating reed 8, and has certain distance with vibrating reed 8, described vibrating reed 8 is being just isoceles triangle type tip-angled shape to one end of jet orifice 6, and its wedge angle is 45 degree to 50 degree.Be provided with permanent seat bottom described vibrating reed 8 and sounding reed 10, pedestal is provided with 2 through holes; Described vibrating reed 8 to be coordinated with sounding housing 11 bottom thread hole by bolt 13 and is fixed on bottom described sounding housing 11, and described sounding reed 10 to be coordinated with nut by bolt 13 and is fixed on sounding housing 11 interior bottom portion end face; A kind of explosion-proof vehicle hydraulic pressure loudspeaker according to right 1, is characterized in that through hole 15 negative thread, outside face 14 outside thread, the described screw thread of sounding housing 11 bottom thread through hole and the screw thread of bolt 13 are sealing thread.
Working process of the present invention:
Be positioned at the hydraulic oil pipeline connection 1 of spraying on housing 2 and connect hydraulic efficiency power unit, the oil returning pipe joint 9 on housing connects hydraulic efficiency pressure system oil return pipe, high pressure liquid force feed enters injection housing 2 by spraying hydraulic oil pipe joint 1 on housing 2, high pressure liquid force feed is spouting by the jet orifice 7 of nozzle 7, the jet liquid sheet impact shock reed 8 ejected, make vibrating reed 8 high-frequency vibration, because jet blade speed and hydraulic oil density are comparatively large, therefore vibrating reed 8 Oscillation Amplitude caused is larger, vibrating reed 8 is fixed on sounding housing 4, sounding reed 10 is fixing with on sounding housing 4, when vibrating reed 8 vibrates, sounding housing 4 and sounding reed 10 forced vibration, sounding housing 11 is fixed with housing 4, therefore sounding housing 44 Oscillation Amplitude is less, sounding reed 10 one end is fixed on bottom sounding housing 11, the other end is not fixed, therefore one end Oscillation Amplitude that sounding reed 10 is not fixed is larger, sounding reed 10 is forced vibration, therefore the oscillation frequency of sounding reed 10 is consistent with the oscillation frequency of vibrating reed 8, therefore when vibrating reed 8 vibrates, sounding reed 40 is with same frequency vibration, vibration and sound wave exist simultaneously therefore when sounding reed 10 vibrates, will distribute sound wave in air, and the unfixing one end Oscillation Amplitude again due to sounding reed 10 is comparatively large, therefore the sonic wave amplitude distributed is comparatively large, and after exit skirt amplifies, people hear larger sound.The eject blade speed that oscillation frequency and the injection orifice 6 of vibrating reed 10 spray is directly proportional, when the higher vibrating reed of spray velocity, to vibrate 8 frequencies higher, when vibrating reed vibrate 8 frequencies consistent with sounding reed vibrates 10 frequency time, sounding reed 10 amplitude is maximum, and the sound that people hear is also just maximum; As long as so adjustment injection orifice 6 sprays jetting fluid sheet speed, just can adjust the sound size that these hydraulic pressure loudspeaker send, and spray velocity is relevant with the pressure of high pressure liquid force feed, therefore only need regulate the hydraulic fluid pressure entering these hydraulic pressure loudspeaker, send out the size of place's sound with regard to these loudspeaker of adjustable.
Usefulness of the present invention:
Explosion proof forklift hydraulic pressure loudspeaker, adopt the original hydraulic power of explosion proof forklift to be that power does not need additionally to add propulsion source; This anti-explosion loudspeaker adopts hydraulic power, operationally can not produce electro spark, not have potential safety hazard; Described housing 4 is sealing thread with described sounding housing 11 connecting thread, and the bolt 13 of fixing vibrating reed is sealing thread with sounding housing bottom tapped through hole screw thread, thus ensure that this system sealing property operationally; The present invention's size of sounding is adjustable, therefore can use in a variety of contexts.
Finally, it is also to be noted that what enumerate above is only a specific embodiment of the present invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be had.All distortion that those of ordinary skill in the art can directly derive from content disclosed by the invention or associate, all should think protection scope of the present invention.
Claims (6)
1. explosion proof forklift hydraulic pressure loudspeaker, it is characterized in that: comprise and spray housing (2), housing (4), sounding cavity (11), vibrating reed (8), sounding reed (10), exit skirt (5) and nut (12), described injection housing (2) is provided with hydraulic oil pipe joint (1), nozzle (7), jet orifice (6) and projection (13), described projection (13) embeds in described housing (4), spray in housing (2) and described housing (4) and be connected by bolt (3), described housing (4) is provided with oil returning pipe joint (9), described housing (4) bottom is provided with through hole (15), described through hole (15) is provided with negative thread, described housing (4) is fixed with described sounding cavity (11), described sounding cavity (11) opening outwardly, described sounding cavity (11) outside face (14) is provided with outside thread, described sounding cavity (11) bottom is provided with tapped through hole, described vibrating reed (8) is positioned at described sounding cavity (11) outside and is fixed on described sounding cavity (11) exterior base plane, described sounding reed (10) is positioned at described sounding housing (11) inside and is fixed on described sounding cavity (11) interior bottom portion plane, described exit skirt (5) bottom is provided with through hole, sounding cavity (11) open at one end is through this through hole, nut (12) coordinates fixing exit skirt (5) between housing (4) and nut (12) with sounding cavity (11), described exit skirt (5) and described sounding housing (11) opening are towards consistent.
2. a kind of explosion proof forklift hydraulic pressure loudspeaker according to claim 1, it is characterized in that: described jet orifice (6) is rectangular opening, described jet orifice (6) just to vibrating reed (8), and has certain distance with vibrating reed (8).
3. a kind of explosion proof forklift hydraulic pressure loudspeaker according to claim 2, is characterized in that: described vibrating reed (8) is being just isoceles triangle type tip-angled shape to one end of jet orifice (6), and its wedge angle is 45 degree to 50 degree.
4. a kind of explosion proof forklift hydraulic pressure loudspeaker according to claim 3, is characterized in that: described vibrating reed (8) is provided with permanent seat with sounding reed (10) bottom, and pedestal is provided with 2 through holes.
5. a kind of explosion proof forklift hydraulic pressure loudspeaker according to claim 4, it is characterized in that: vibrating reed (8) to be coordinated with sounding housing (11) bottom thread hole by bolt (13) and is fixed on described sounding housing (11) bottom, described sounding reed (10) to be coordinated with nut by bolt (13) is fixed on sounding housing (11) interior bottom portion end face.
6. a kind of explosion proof forklift hydraulic pressure loudspeaker according to claim 5, is characterized in that: the screw thread of through hole (15) negative thread, outside face (14) outside thread, described sounding housing (11) bottom thread through hole and the screw thread of bolt (13) are sealing thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511033485.5A CN105480904B (en) | 2015-12-31 | 2015-12-31 | A kind of explosion proof forklift hydraulic pressure loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511033485.5A CN105480904B (en) | 2015-12-31 | 2015-12-31 | A kind of explosion proof forklift hydraulic pressure loudspeaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105480904A true CN105480904A (en) | 2016-04-13 |
| CN105480904B CN105480904B (en) | 2017-10-27 |
Family
ID=55668245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511033485.5A Active CN105480904B (en) | 2015-12-31 | 2015-12-31 | A kind of explosion proof forklift hydraulic pressure loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105480904B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1955815A (en) * | 1933-08-01 | 1934-04-24 | Lauterbach John | Toy siren whistle |
| US3598081A (en) * | 1968-11-29 | 1971-08-10 | Advanced Technology Center Inc | Pneumatic sound generator |
| JPH0664296U (en) * | 1992-12-21 | 1994-09-09 | 博雄 松永 | Cheer horn |
| CN204272383U (en) * | 2014-11-26 | 2015-04-15 | 中国科学院声学研究所 | A kind of Flow Control sound signal generator |
-
2015
- 2015-12-31 CN CN201511033485.5A patent/CN105480904B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1955815A (en) * | 1933-08-01 | 1934-04-24 | Lauterbach John | Toy siren whistle |
| US3598081A (en) * | 1968-11-29 | 1971-08-10 | Advanced Technology Center Inc | Pneumatic sound generator |
| JPH0664296U (en) * | 1992-12-21 | 1994-09-09 | 博雄 松永 | Cheer horn |
| CN204272383U (en) * | 2014-11-26 | 2015-04-15 | 中国科学院声学研究所 | A kind of Flow Control sound signal generator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105480904B (en) | 2017-10-27 |
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