CN113055771A - Dustproof and moisture-resistant mining intrinsic safety type sound box - Google Patents
Dustproof and moisture-resistant mining intrinsic safety type sound box Download PDFInfo
- Publication number
- CN113055771A CN113055771A CN202110279026.4A CN202110279026A CN113055771A CN 113055771 A CN113055771 A CN 113055771A CN 202110279026 A CN202110279026 A CN 202110279026A CN 113055771 A CN113055771 A CN 113055771A
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- proof
- dustproof
- box
- explosion
- sound
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/80—Water
Abstract
The invention discloses a dustproof and moisture-resistant mining intrinsic safety type sound box which comprises a supporting mechanism and a protection mechanism, wherein the supporting mechanism comprises a dampproof base, supporting legs, a dampproof box, a dampproof agent and through holes, a sound-raising port and a connecting terminal are arranged on the front side of a main body of the intrinsic safety type sound box, heat-conducting rods are symmetrically arranged on the left side and the right side of the dustproof and explosion-proof box, a handle and a hanging ring are arranged on the top of the dustproof and explosion-proof box, an operating door is arranged on the left side of the sound-raising port, and the operating door is rotatably connected with an explosion-proof plate. This mining ann's type audio amplifier of dustproof moisture-proof type is provided with dustproof flame proof case, and dustproof flame proof case can effectively prevent that external dust from polluting mining ann's type audio amplifier main part to be convenient for protect mining ann's type audio amplifier main part, be provided with the explosion-proof board simultaneously, staff's accessible dismantles the second connecting piece and gets off the explosion-proof board when mining ann's type audio amplifier main part breaks down and overhauls the mining ann's type audio amplifier main part in the dustproof flame proof case.
Description
Technical Field
The invention relates to the technical field of mining intrinsic safety type sound boxes, in particular to a dustproof and moisture-resistant mining intrinsic safety type sound box.
Background
A speaker refers to a device that can convert an audio signal into sound. The popular way is that a power amplifier is arranged in a main box body or a bass box body of a sound box, and the sound box generates sound after amplifying an audio signal, so that the sound becomes louder. The mining intrinsic safety type sound box is one type of sound box, namely intrinsic safety type, and is an explosion-proof type of electrical equipment, and the energy of electric sparks or thermal effects possibly generated by connecting wires exposing the interior of the equipment and a potential explosive environment is limited to a level incapable of generating ignition.
The mining ann's type audio amplifier of current is airtight in order to prevent that the dust from getting into the inside most of device to make device heat dispersion relatively poor, and then influence the life of device, the current mining ann's type audio amplifier of on the other hand does not possess dampproofing structure mostly, thereby inconvenient to the moisture of its inside production handle, and then lead to the unexpected damage of audio amplifier because of the inside moisture of device is overweight easily, to above-mentioned problem, need improve current equipment.
Disclosure of Invention
The invention aims to provide a dustproof and moisture-resistant mining intrinsic safety type sound box, which solves the problems that the existing mining intrinsic safety type sound box proposed in the background technology is mostly closed in order to prevent dust from entering the interior of the device, so that the heat dissipation performance of the device is poor, and the service life of the device is influenced, and on the other hand, the existing mining intrinsic safety type sound box mostly does not have a moisture-proof structure, so that moisture generated in the existing mining intrinsic safety type sound box is inconvenient to process, and the sound box is easily damaged accidentally due to the fact that the moisture in the interior of the device is too heavy.
In order to achieve the purpose, the invention provides the following technical scheme: a dustproof and moisture-proof mining intrinsic safety type sound box comprises a supporting mechanism and a protection mechanism,
supporting mechanism, supporting mechanism includes dampproofing base, supporting legs, dampproofing box, dampproofing agent and through-hole, and dampproofing base bottom symmetry is provided with the supporting legs, the inside dampproofing box that is provided with of dampproofing base, and the inside dampproofing agent that is provided with of dampproofing box.
The protection mechanism comprises a dustproof flame-proof box, a heat conducting rod, a heat radiating fin, a first connecting piece, a lifting ring, a handle, a sound expansion hole, a dust cover, a connecting hole, a flame-proof plate, a second connecting piece, an operating door and a hinge, wherein the dustproof flame-proof box is fixedly arranged at the top of the moistureproof base, a mining intrinsic safety type sound box main body and a limiting mechanism are arranged inside the dustproof flame-proof box, the front side of the intrinsic safety type sound box main body is provided with a sound expansion port and a connecting terminal, the left side of the sound expansion port is provided with a control panel, the left side and the right side of the dustproof flame-proof box are symmetrically provided with the heat conducting rod, the outer side of the heat conducting rod is in contact with the heat radiating fin, the heat radiating fin is connected with the dustproof flame-proof box through the first connecting piece, the handle and the lifting ring are arranged at the top of, and an operation door is arranged on the left side of the sound expansion hole and is rotationally connected with the explosion-proof plate through a hinge.
Preferably, dampproofing box and dampproofing base constitute the pull structure, and the front side top symmetry of dampproofing box is provided with the gag lever post, and the top of gag lever post is passed through the bolt and is connected with dampproofing base simultaneously.
Preferably, the through holes are uniformly formed in the top of the moisture-proof base.
Preferably, the radiating fin is connected with the dustproof explosion-proof box in a clamping mode.
Preferably, the lifting rings are symmetrically arranged at the top of the dustproof and explosion-proof box, and four groups of lifting rings are arranged.
Preferably, the outer side of the sound expansion hole is provided with a dust cover, the dust cover is in threaded connection with the explosion-proof plate, and the explosion-proof plate is connected with the dust-proof explosion-proof box through a second connecting piece.
Preferably, the sound diffusing hole and the connecting port are respectively and correspondingly arranged on the front sides of the sound raising port and the connecting terminal, and the operation door is correspondingly arranged on the front side of the control panel.
Preferably, the limiting mechanisms are symmetrically arranged in two groups, and the limiting mechanisms are arranged above the mining intrinsic safety type sound box main body.
Preferably, the limiting mechanism comprises a third connecting piece, a limiting clamping block and an anti-slip pad, the limiting clamping block is connected with the inner side wall of the dustproof explosion-proof box through the third connecting piece, the anti-slip pad is bonded to the inner side of the limiting clamping block, and the anti-slip pad is in contact with the tops of the left side and the right side of the mining intrinsic safety type sound box main body.
Compared with the prior art, the invention has the beneficial effects that: the dustproof and moisture-proof mining intrinsic safety type sound box,
(1) the mining intrinsic safety type sound box is provided with the heat conducting rod and the radiating fins, the heat conducting rod can absorb heat generated by the mining intrinsic safety type sound box body during working and conduct the absorbed heat to the radiating fins, and then the heat is rapidly radiated to the outside by utilizing the advantage of large radiating area of the radiating fins, so that the radiating efficiency of the device can be effectively improved, the mining intrinsic safety type sound box body is further prevented from being accidentally damaged due to low radiating speed, and meanwhile, the service life of the mining intrinsic safety type sound box body is prolonged;
(2) the mining intrinsic safety type sound box is provided with the dustproof flame-proof box, the dustproof flame-proof box can effectively prevent external dust from polluting the mining intrinsic safety type sound box main body, so that the mining intrinsic safety type sound box main body is protected conveniently, meanwhile, the flame-proof plate is arranged, when the mining intrinsic safety type sound box main body breaks down, a worker can disassemble the flame-proof plate through disassembling the second connecting piece to overhaul the mining intrinsic safety type sound box main body in the dustproof flame-proof box;
(3) the mining intrinsic safety type sound box is provided with a limiting clamping block, the limiting clamping block can limit the position of the mining intrinsic safety type sound box main body in the dustproof flame-proof box, and the mining intrinsic safety type sound box main body is convenient to prevent the mining intrinsic safety type sound box main body from rubbing and colliding with the inner wall of the dustproof flame-proof box, so that the internal structure of the device is convenient to optimize, and meanwhile, the mining intrinsic safety type sound box main body is provided with a non-slip mat which can prevent the limiting clamping block from abrading the;
(4) the moisture-proof box is arranged, moisture in the dustproof flame-proof box can be adsorbed by a moisture-proof agent in the moisture-proof box through the through hole, so that the moisture resistance of the device is improved conveniently, and meanwhile, the short circuit phenomenon caused by over-humidity in the dustproof flame-proof box of the mining intrinsic safety type sound box main body can be effectively prevented;
(5) be provided with rings, staff's accessible rings hoist the device or wall is installed to be convenient for enrich the mounting means of device, be provided with the dust cover simultaneously, the dust cover can prevent effectively that external dust from passing through public address hole entering device internal contamination mining ann's type audio amplifier main part, thereby is convenient for further improve the dust resistance of device.
Drawings
FIG. 1 is a schematic cross-sectional front view of the present invention;
FIG. 2 is a schematic front view of the present invention;
FIG. 3 is a schematic top view of the present invention;
FIG. 4 is a schematic top sectional view of the location distribution of the through holes on the moisture-proof base according to the present invention;
FIG. 5 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
FIG. 6 is an enlarged view of the structure at B in FIG. 1 according to the present invention.
In the figure: 1. supporting mechanism, 101, dampproofing base, 102, the supporting legs, 103, dampproofing box, 104, the dampproof agent, 105, the through-hole, 2, protection machanism, 201, dustproof flame proof case, 202, the heat conduction stick, 203, the fin, 204, first connecting piece, 205, rings, 206, the handle, 207, the public address hole, 208, the dust cover, 209, the connector, 2010, the flame proof board, 2011, the second connecting piece, 2012, the operating door, 2013, mining ann's type audio amplifier main part, 301, the loudspeaking mouth, 302, connecting terminal, 303, control panel, 4, the bolt, 5, the gag lever post, 6, stop gear, 601, the third connecting piece, 602, spacing fixture block, 603, the slipmat.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a dustproof and moisture-resistant mining intrinsic safety type sound box is disclosed, as shown in figure 1, figure 2, figure 4 and figure 6, a supporting mechanism 1 comprises a moisture-proof base 101, supporting legs 102, a moisture-proof box 103, a moisture-proof agent 104 and through holes 105, the supporting legs 102 are symmetrically arranged at the bottom of the moisture-proof base 101, the moisture-proof box 103 is arranged inside the moisture-proof base 101, the moisture-proof agent 104 is arranged inside the moisture-proof box 103, the moisture-proof box 103 and the moisture-proof base 101 form a drawing structure, when the moisture-proof agent 104 in the moisture-proof box 103 is saturated in moisture absorption capacity and needs to be replaced, a worker can manually draw the moisture-proof box 103 out of the moisture-proof base 101, so that the moisture-proof agent 104 in the moisture-proof box 103 can be replaced, limiting rods 5 are symmetrically arranged at the top of the front side of the moisture-proof box 103, meanwhile, the top end of the limiting rods 5 are connected with the moisture-proof base 101 through bolts 4, the through holes 105 are uniformly arranged at the top of the moisture-proof base 101, the moisture in the dustproof and explosion-proof box 201 can be conveniently adsorbed by the moisture-proof agent 104 through the through holes 105, the protection mechanism 2 comprises the dustproof and explosion-proof box 201, the heat conducting rod 202, the radiating fin 203, the first connecting piece 204, the hanging ring 205, the handle 206, the sound amplifying hole 207, the dust cover 208, the connecting port 209, the explosion-proof plate 2010, the second connecting piece 2011, the operating door 2012 and the hinge 2013, the dustproof and explosion-proof box 201 is fixedly arranged at the top of the moisture-proof base 101, meanwhile, the mining intrinsically safe type sound box main body 3 and the limiting mechanism 6 are arranged in the dustproof and explosion-proof box 201, the limiting mechanisms 6 are symmetrically arranged in two groups, the limiting mechanism 6 is arranged above the mining intrinsically safe type sound box main body 3, the limiting mechanism 6 is convenient for fixing the position of the mining intrinsically safe type sound box main body 3 in the dustproof and explosion-proof, and then be convenient for prevent mining ann's type audio amplifier main part 3 from colliding with the inner wall of dustproof flame proof case 201, stop gear 6 includes third connecting piece 601, spacing fixture block 602 and slipmat 603, and spacing fixture block 602 is connected with the inside wall of dustproof flame proof case 201 through third connecting piece 601, the inboard bonding of spacing fixture block 602 has slipmat 603, and slipmat 603 contacts with the top of the mining ann's type audio amplifier main part 3 left and right sides, slipmat 603 can reduce the rigidity friction between spacing fixture block 602 and mining ann's type audio amplifier main part 3 to a certain extent.
As shown in fig. 1, 2, 3 and 5, the front side of the intrinsically safe sound box main body 3 is provided with a sound emitting port 301 and a connecting terminal 302, the left side of the sound emitting port 301 is provided with a control panel 303, the sound emitting hole 207 and the connecting port 209 are correspondingly arranged on the front sides of the sound emitting port 301 and the connecting terminal 302 respectively, so that a worker can conveniently connect external equipment with the connecting terminal 302 on the intrinsically safe sound box main body 3 through the connecting port 209, the external equipment is correspondingly arranged on the front side of the control panel 303 through an operation door 2012, the operation door 2012 plays a role of dust prevention, so as to conveniently prevent the external dust from polluting and damaging the control panel 303, the left side and the right side of the dustproof explosion-proof box 201 are symmetrically provided with heat conducting rods 202, the outer sides of the heat conducting rods 202 are in contact with the heat radiating fins 203, meanwhile, the heat radiating fins 203 are connected with the dustproof explosion-proof box 201 through first connecting pieces 204, the heat radiating fins 203 are connected, the top of the dustproof and flameproof box 201 is provided with a handle 206 and four lifting rings 205, the handle 206 is convenient for workers to hold and carry the device, the lifting rings 205 are symmetrically arranged at the top of the dustproof and flameproof box 201, the four lifting rings 205 are arranged, the workers can connect the device with the outside through the lifting rings 205, the front side of the dustproof and flameproof box 201 is provided with a flameproof plate 2010, meanwhile, the flameproof plate 2010 is provided with a sound expansion hole 207 and a connecting hole 209, the outer side of the sound expansion hole 207 is provided with a dust cover 208, the dust cover 208 is convenient for preventing dust pollution and blocking the sound expansion hole 207, the dust cover 208 is in threaded connection with the sound expansion plate 2010, when the dust cover 208 needs cleaning, the workers can manually rotate the dust cover from the flameproof plate 2010 to clean dust stained on the dust cover 208, meanwhile, the flameproof plate 2010 is connected with the dustproof and flameproof box 201 through a second connecting piece, the left side of the sound expansion hole, and the operation door 2012 is rotatably connected with the explosion-proof plate 2010 through a hinge 2013.
The working principle is as follows: when the dustproof and moisture-resistant mining intrinsic safety type sound box is used, firstly, the mining intrinsic safety type sound box body 3 is placed on the moistureproof base 101 in the dustproof and flameproof box 201, then the anti-slip pad 603 on the inner side of the limiting clamping block 602 is contacted with the top of the mining intrinsic safety type sound box body 3, then the limiting clamping block 602 is connected with the dustproof and flameproof box 201 through the third connecting piece 601, so that the mining intrinsic safety type sound box body 3 can be fixed in the dustproof and flameproof box 201, then a worker can connect the flameproof plate 2010 with the dustproof and flameproof box 201 through the second connecting piece 2011, meanwhile, the worker can connect external equipment with the connecting terminal 302 through the connecting port 209, then the worker can connect the device with the wall through the hanging ring 205, then connect the power supply, open the operation door 2012, operate the control panel 303 to start the device, and the sound-raising port 301 emits the sound emitted when the mining intrinsic safety type sound box body 3 works to the outside through the sound, meanwhile, the heat conducting rod 202 can conduct heat dissipated into the dustproof and explosion-proof box 201 to the radiating fins 203 rapidly when the mining intrinsically safe sound box main body 3 works, the radiating fins 203 can utilize the advantage of large radiating area to dissipate the heat to the outside rapidly, the device is helped to dissipate the heat rapidly, meanwhile, moisture in the dustproof and explosion-proof box 201 is absorbed by the moisture-proof agent 104 in the dampproof box 103 through the through holes 105, all work is completed, and the content which is not described in detail in the specification belongs to the prior art which is known by technical personnel in the field.
The terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for simplicity of description only and are not intended to indicate or imply that the referenced devices or elements must be in a particular orientation, constructed and operative in a particular orientation, and are not to be considered limiting of the claimed invention.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides a mining ann's type audio amplifier of dustproof moisture-fast type, includes supporting mechanism (1) and protection machanism (2), its characterized in that:
the supporting mechanism (1) comprises a damp-proof base (101), supporting legs (102), a damp-proof box (103), a damp-proof agent (104) and through holes (105), wherein the supporting legs (102) are symmetrically arranged at the bottom of the damp-proof base (101), the damp-proof box (103) is arranged inside the damp-proof base (101), and the damp-proof agent (104) is arranged inside the damp-proof box (103).
The protection mechanism (2) comprises a dustproof explosion-proof box (201), a heat conducting rod (202), a radiating fin (203), a first connecting piece (204), a hanging ring (205), a handle (206), a sound amplifying hole (207), a dust cover (208), a connecting port (209), an explosion-proof plate (2010), a second connecting piece (2011), an operating door (2012) and a hinge (2013), wherein the dustproof explosion-proof box (201) is fixedly arranged at the top of the moistureproof base (101), meanwhile, a mining intrinsic safety type sound box main body (3) and a limiting mechanism (6) are arranged inside the dustproof explosion-proof box (201), a sound raising port (301) and a connecting terminal (302) are arranged on the front side of the intrinsic safety type sound box main body (3), a control panel (303) is arranged on the left side of the sound raising port (301), the heat conducting rods (202) are symmetrically arranged on the left side and the right side of the dustproof explosion-proof box (201), and the outer side of the heat conducting rod (, simultaneously fin (203) are connected with dustproof flame proof case (201) through first connecting piece (204), the top of dustproof flame proof case (201) is provided with handle (206) and rings (205), and the front side of dustproof flame proof case (201) is provided with explosion-proof board (2010), has seted up on explosion-proof board (2010) simultaneously and has expanded sound hole (207) and connector (209), the left side of expanding sound hole (207) is provided with operation door (2012), and operation door (2012) rotate through hinge (2013) and explosion-proof board (2010) and be connected.
2. The mining intrinsically safe sound box of claim 1, which is characterized in that: dampproofing box (103) constitutes the pull structure with dampproofing base (101), and the front side top symmetry of dampproofing box (103) is provided with gag lever post (5), and the top of gag lever post (5) is passed through bolt (4) simultaneously and is connected with dampproofing base (101).
3. The mining intrinsically safe sound box of claim 1, which is characterized in that: the through holes (105) are uniformly arranged at the top of the moisture-proof base (101).
4. The mining intrinsically safe sound box of claim 1, which is characterized in that: and the radiating fin (203) is clamped and connected with the dustproof and explosion-proof box (201).
5. The mining intrinsically safe sound box of claim 1, which is characterized in that: the lifting rings (205) are symmetrically arranged at the top of the dustproof and explosion-proof box (201), and four groups of lifting rings (205) are arranged.
6. The mining intrinsically safe sound box of claim 1, which is characterized in that: the dustproof cover (208) is arranged on the outer side of the sound expansion hole (207), the dustproof cover (208) is in threaded connection with the explosion-proof plate (2010), and meanwhile the explosion-proof plate (2010) is connected with the dustproof explosion-proof box (201) through a second connecting piece (2011).
7. The mining intrinsically safe sound box of claim 1, which is characterized in that: the sound diffusion hole (207) and the connecting port (209) are correspondingly arranged on the front sides of the sound diffusion hole (301) and the connecting terminal (302) respectively, and the operation door (2012) is correspondingly arranged on the front side of the control panel (303).
8. The mining intrinsically safe sound box of claim 1, which is characterized in that: two sets of limiting mechanisms (6) are symmetrically arranged, and the limiting mechanisms (6) are arranged above the mining intrinsic safety type sound box main body (3).
9. The mining intrinsically safe sound box of claim 1, which is characterized in that: limiting mechanism (6) include third connecting piece (601), spacing fixture block (602) and slipmat (603), and spacing fixture block (602) are connected with the inside wall of dustproof flame proof case (201) through third connecting piece (601), the inboard bonding of spacing fixture block (602) has slipmat (603), and slipmat (603) and the top contact of mining ann's type audio amplifier main part (3) left and right sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110279026.4A CN113055771A (en) | 2021-03-16 | 2021-03-16 | Dustproof and moisture-resistant mining intrinsic safety type sound box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110279026.4A CN113055771A (en) | 2021-03-16 | 2021-03-16 | Dustproof and moisture-resistant mining intrinsic safety type sound box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113055771A true CN113055771A (en) | 2021-06-29 |
Family
ID=76512786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110279026.4A Withdrawn CN113055771A (en) | 2021-03-16 | 2021-03-16 | Dustproof and moisture-resistant mining intrinsic safety type sound box |
Country Status (1)
| Country | Link |
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| CN (1) | CN113055771A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113708787A (en) * | 2021-08-19 | 2021-11-26 | 徐州瑞格电子有限公司 | Wired interphone with protection structure |
| CN114513915A (en) * | 2022-03-08 | 2022-05-17 | 徐州信控智能科技有限公司 | PLC-based mining explosion-proof intrinsic safety type programmable control box |
-
2021
- 2021-03-16 CN CN202110279026.4A patent/CN113055771A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113708787A (en) * | 2021-08-19 | 2021-11-26 | 徐州瑞格电子有限公司 | Wired interphone with protection structure |
| CN113708787B (en) * | 2021-08-19 | 2022-06-21 | 徐州瑞格电子有限公司 | Wired interphone with protection structure |
| CN114513915A (en) * | 2022-03-08 | 2022-05-17 | 徐州信控智能科技有限公司 | PLC-based mining explosion-proof intrinsic safety type programmable control box |
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Application publication date: 20210629 |
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