CN219499742U - Positive pressure explosion-proof box with sweeping and blowing functions - Google Patents
Positive pressure explosion-proof box with sweeping and blowing functions Download PDFInfo
- Publication number
- CN219499742U CN219499742U CN202320441106.XU CN202320441106U CN219499742U CN 219499742 U CN219499742 U CN 219499742U CN 202320441106 U CN202320441106 U CN 202320441106U CN 219499742 U CN219499742 U CN 219499742U
- Authority
- CN
- China
- Prior art keywords
- explosion
- proof
- positive pressure
- pressure
- switch
- 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.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Casings For Electric Apparatus (AREA)
Abstract
The utility model relates to the technical field of positive pressure explosion prevention, in particular to a positive pressure explosion-proof box with a sweeping and blowing function, wherein an access pipe, an exhaust pipe and a positive pressure inflation structure are arranged at the bottom of a display screen frame, the positive pressure inflation structure comprises an air inlet pipeline, an air source connector and a sweeping switch air control two-way valve which are sequentially connected with the access pipe are arranged on the air inlet pipeline, the display screen frame and the positive pressure inflation structure are both arranged on the inner side of a normal pressure box body, the positive pressure inflation structure also comprises an exhaust pipeline, a fire-blocking discharge connector and a sweeping and exhaust air control two-way valve which are sequentially connected with the exhaust pipe are arranged on the exhaust pipeline, and the air flow sweeping and the blowing of the display screen frame are carried out through the sweeping switch air control two-way valve and the sweeping and exhaust air control two-way valve of the air inlet pipeline when the touch display screen is started, normal inflation and pressure maintaining are carried out after the sweeping and blowing is finished, and inflammable and explosive substances such as dust in the equipment are reduced.
Description
Technical Field
The utility model relates to the technical field of positive pressure explosion prevention, in particular to a positive pressure explosion-proof box with a sweeping and blowing function.
Background
The utility model discloses a positive pressure explosion-proof device, which comprises a display screen frame and a touch display, wherein the touch display is used for realizing man-machine interaction in an electric device, explosive gas in the environment easily enters the display screen through a touch display interface or a gap, an exposed electric connection part is used for arc detonation in the touch display, and for this purpose, a positive pressure explosion-proof device is provided, so that the safety of the touch display in the explosive environment is enhanced, the patent CN214946386U discloses the positive pressure explosion-proof device, the positive pressure explosion-proof device comprises a display screen frame and a touch display, the touch display is arranged on the inner side of the display screen frame, a sealing gasket is arranged between the surface of the touch display and the display screen frame, the inner side of the display screen frame is provided with a display backboard, the display backboard is electrically connected with the touch display through a cable, the bottom of the display screen frame is provided with an access pipe, and one side of the bottom of the display screen frame is provided with an exhaust pipe. When the positive pressure is inflated, the compressed air is directly connected into the display screen frame, so that inflammable and explosive substances such as dust and the like in the equipment are accumulated to explode, and the display screen frame has certain potential safety hazard.
Disclosure of Invention
The utility model aims to overcome the defects and the shortcomings of the prior art and provides a positive pressure explosion-proof box with a sweeping and blowing function.
The technical scheme adopted by the utility model is as follows: the utility model provides a positive pressure explosion-proof case of function is blown in area, includes display screen frame and touch display, touch display sets up on one side terminal surface of display screen frame, the bottom of display screen frame is provided with access pipe, blast pipe and positive pressure and aerifys the structure, positive pressure is aerifyd the structure and is included the admission line, be equipped with the air source joint that connects gradually and with access pipe connection's purge switch pneumatic control two-way valve on the admission line, positive pressure explosion-proof case still includes the normal pressure box, display screen frame and positive pressure are aerifyd the structure and are all installed in the normal pressure box inboard, positive pressure is aerifyd the structure and is still included exhaust duct, be equipped with the fire-retardant emission joint that connects gradually and with the blast pipe connection's purge exhaust pneumatic control two-way valve on the exhaust duct.
Preferably, the positive pressure inflation structure further comprises an explosion-proof timing switch and a purging timing switch, wherein one end of the purging timing switch is connected with the explosion-proof timing switch, and the other end of the purging timing switch is simultaneously connected with the purging switch pneumatic control two-way valve and the purging exhaust pneumatic control two-way valve.
Preferably, the positive pressure inflation structure further comprises a five-way dispenser, a pressure difference display meter, an explosion-proof pressure difference switch and an explosion-proof audible and visual alarm, wherein the five-way dispenser is connected with the exhaust pipe, the purge exhaust gas control two-way valve, the pressure difference display meter and the explosion-proof pressure difference switch at the same time, an NO contact and an NC contact are arranged on the explosion-proof pressure difference switch, when the pressure difference display meter detects that the air pressure in the display screen frame is lower than a set value, the explosion-proof pressure difference switch is communicated with the NC contact, and when the explosion-proof pressure difference switch is communicated with the NC contact, the explosion-proof audible and visual alarm is communicated.
Preferably, when the pressure difference display meter detects that the air pressure in the display screen frame reaches a set value, the explosion-proof pressure difference switch is communicated with the NO contact, and when the explosion-proof pressure difference switch is communicated with the NO contact, the explosion-proof timing switch is communicated.
Preferably, the positive pressure inflating structure further comprises a pressure maintaining throttle valve and a pressure maintaining exhaust throttle valve, wherein the pressure maintaining throttle valve is connected with the purge switch pneumatic control two-way valve in parallel, and the pressure maintaining exhaust throttle valve is connected with the purge exhaust pneumatic control two-way valve in parallel.
Preferably, be equipped with a plurality of cushioning structure between the bottom surface in display screen frame bottom surface and the ordinary pressure box, the cushioning structure includes bracing piece, explosion-proof cushioning case and cushioning pole, bracing piece one end and display screen frame bottom surface fixed connection other end and explosion-proof cushioning case fixed connection, the cushioning pole includes cushioning portion and fixed part, fixed part and the interior bottom surface fixed connection of ordinary pressure box, the cushioning portion upper end is equipped with the fixed plate, be equipped with the through-hole with cushioning portion looks adaptation on the explosion-proof cushioning case, the cushioning portion passes the through-hole and is connected with the fixed plate and the overcoat has the cushioning spring, cushioning spring one end and fixed plate fixed connection, the other end and explosion-proof cushioning case fixed connection, the diameter of cushioning portion is less than the diameter of fixed part, the diameter of fixed plate is greater than the external diameter of cushioning spring.
Preferably, a damping spring is also arranged between the fixing plate and the upper inner wall of the explosion-proof damping box, at least three limiting columns are further arranged in the explosion-proof damping box, and the at least three limiting columns uniformly surround the damping spring.
Preferably, a sealing ring is arranged between the through hole and the cushioning part.
Preferably, the normal pressure box body is provided with a device mounting port corresponding to the position of the touch display, a plurality of switch mounting ports are arranged below the device mounting port of the normal pressure box body, and a power switch, a data transmission port and an emergency stop switch are correspondingly arranged at the switch mounting ports.
Preferably, the outer side wall of the display screen frame is provided with a plurality of connecting plates with screw holes, and the display screen frame is fixed in the normal pressure box body through screws.
The beneficial effects of the utility model are as follows: through the purge switch pneumatic control two-way valve and the purge exhaust pneumatic control two-way valve of the air inlet pipeline and the exhaust pipeline, the touch display screen is enabled to sweep the inside of the display screen frame by a large amount when being started, normal inflation positive pressure maintaining is carried out after the sweeping is finished, inflammable and explosive substances such as dust in equipment are reduced, and explosion is avoided.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that it is within the scope of the utility model to one skilled in the art to obtain other drawings from these drawings without inventive faculty.
FIG. 1 is a front view of a positive pressure explosion proof control box of the present utility model;
FIG. 2 is a left side cross-sectional view of the positive pressure explosion-proof control box of the present utility model;
FIG. 3 is an enlarged schematic view of FIG. 2A;
FIG. 4 is a top cross-sectional view of the positive pressure explosion proof control box of the present utility model;
FIG. 5 is a PID diagram of the positive pressure explosion proof control box of the present utility model;
FIG. 6 is a schematic diagram of another embodiment of the present utility model;
FIG. 7 is an enlarged view of a portion of FIG. 5;
in the figure, a 1-display screen frame, a 2-touch display, a 3-access pipe, a 4-exhaust pipe, a 5-normal pressure box body, a 6-positive pressure inflatable structure, a 7-air source connector, an 8-purge switch air control two-way valve, a 9-fire-blocking discharge connector, a 10-purge exhaust air control two-way valve, an 11-explosion-proof time switch, a 12-purge time, a 13-five-way distributor, a 14-differential pressure display meter, a 15-explosion-proof differential pressure switch, a 16-explosion-proof audible and visual alarm, a 17-pressure maintaining throttle valve, a 18-pressure maintaining exhaust throttle valve, a 19-buffer structure, a 20-support rod, a 21-explosion-proof buffer box, a 22-buffer rod, a 23-buffer part, a 24-fixing part, a 25-fixing plate, a 26-buffer spring, a 27-sealing ring, a 28-equipment mounting port, a 29-power switch, a 30-data transmission port and a 31-emergency stop switch.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent.
It should be noted that, in the embodiments of the present utility model, all the expressions "first" and "second" are used to distinguish two entities with the same name but different entities or different parameters, and it is noted that the "first" and "second" are only used for convenience of expression, and should not be construed as limiting the embodiments of the present utility model, and the following embodiments are not described one by one.
The terms of direction and position in the present utility model, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., refer only to the direction or position of the drawing. Accordingly, directional and positional terms are used to illustrate and understand the utility model and are not intended to limit the scope of the utility model.
As shown in fig. 1 to 5, in an embodiment of the present utility model, a positive pressure explosion-proof box with a sweeping and blowing function includes a display screen frame 1 and a touch display 2, the touch display 2 is disposed on one side end surface of the display screen frame 1, an access pipe 3, an exhaust pipe 4 and a positive pressure inflation structure 6 are disposed at the bottom of the display screen frame 1, the positive pressure inflation structure 6 includes an air intake pipe, and an air source connector 7 and a sweeping switch pneumatic control two-way valve 8 connected with the access pipe 3 are sequentially disposed on the air intake pipe, which is characterized in that: the positive pressure explosion-proof box further comprises a normal pressure box body 5, the display screen frame 1 and the positive pressure inflating structure 6 are both arranged on the inner side of the normal pressure box body 5, the positive pressure inflating structure 6 further comprises an exhaust pipeline, and the exhaust pipeline is provided with a fire-retarding discharge joint 9 and a purging exhaust gas control two-way valve 10 which are sequentially connected with the exhaust pipe 4. When the purging switch pneumatic control two-way valve and the purging exhaust pneumatic control two-way valve are in an open state, the air source enters the display screen frame through the air source connector, the purging switch pneumatic control two-way valve and the access pipe, and air in the display screen frame is discharged through the exhaust pipe, the purging exhaust pneumatic control two-way valve and the fire-retardant discharge connector, so that the touch display screen can sweep air in the display screen frame when being started, normal inflation positive pressure maintaining is carried out after the sweeping is finished, inflammable and explosive substances such as dust in equipment are reduced, and explosion is avoided. The structure of integral type overcoat ordinary pressure box can reduce the malleation district, reduces the inflation time, strengthens the seal, under receiving external force to destroy, and the skin has the protection of ordinary pressure box, reduces and reveal explosion risk.
The positive pressure inflation structure 6 further comprises an explosion-proof timing switch 11 and a purging timing 12, wherein one end of the purging timing 12 is connected with the explosion-proof timing switch 11, and the other end of the purging timing 12 is simultaneously connected with the purging switch pneumatic control two-way valve 8 and the purging exhaust pneumatic control two-way valve 10. When the explosion-proof timing switch is electrified and commutated, the purging timing is driven to start timing, the purging is continuously performed in the timing process, and when the timing arrives, the explosion-proof timing switch commutates, the purging switch pneumatic control two-way valve and the purging exhaust pneumatic control two-way valve are simultaneously closed, and the purging is stopped.
The positive pressure inflatable structure 6 further comprises a five-way dispenser 13, a pressure difference display meter 14, an explosion-proof pressure difference switch 15 and an explosion-proof audible and visual alarm 16, wherein the five-way dispenser 13 is connected with the exhaust pipe 4, the purge exhaust gas pneumatic control two-way valve 10, the pressure difference display meter 14 and the explosion-proof pressure difference switch 15 at the same time, an NO contact and an NC contact are arranged on the explosion-proof pressure difference switch 15, when the pressure difference display meter 14 detects that the air pressure in the display screen frame 1 is lower than a set value, the explosion-proof pressure difference switch 15 is connected with the NC contact, and when the explosion-proof pressure difference switch 15 is connected with the NC contact, the explosion-proof audible and visual alarm 16 is communicated. When the explosion-proof differential pressure switch detects that the pressure does not reach the set point, the NC contact is communicated with an explosion-proof audible and visual alarm to give an alarm.
When the pressure difference display meter 14 detects that the air pressure in the display screen frame 1 reaches a set value, the explosion-proof pressure difference switch 15 is connected with the NO contact, and when the explosion-proof pressure difference switch 15 is connected with the NO contact, the explosion-proof timing switch 11 is connected. When the explosion-proof differential pressure switch detects that the pressure reaches the set point, the switch is connected to the NO contact to be communicated with the explosion-proof timing switch for electrifying and reversing, and the purging timing is driven to start timing, and purging is started. The pneumatic condition of purging is that the pressure detected by the explosion-proof differential pressure switch reaches a set point, and the NO contact is always kept to be communicated.
The positive pressure inflation structure 6 further comprises a pressure maintaining throttle valve 17 and a pressure maintaining exhaust throttle valve 18, wherein the pressure maintaining throttle valve 17 is connected with the purge switch pneumatic control two-way valve 8 in parallel, and the pressure maintaining exhaust throttle valve 18 is connected with the purge exhaust pneumatic control two-way valve 10 in parallel. After the air source is connected, the pressure maintaining process of the branch can be realized through the pressure maintaining throttle valve and the pressure maintaining exhaust throttle valve, when the pressure maintaining branch is stable, the pressure of the explosion-proof differential pressure switch reaches a set point and is connected with the NO contact, before operation, whether the inside meets the positive pressure requirement or not can be known, and the relevant valve group is used for carrying out various monitoring.
Be equipped with a plurality of cushioning structure 19 between the bottom surface in display screen frame 1 bottom surface and the ordinary pressure box 5, cushioning structure 19 includes bracing piece 20, explosion-proof cushioning case 21 and cushioning pole 22, bracing piece 20 one end and the bottom surface fixed connection other end and the explosion-proof cushioning case 21 fixed connection of display screen frame 1, cushioning pole 22 includes cushioning portion 23 and fixed part 24, fixed part 24 and the interior bottom surface fixed connection of ordinary pressure box 5, the portion 23 upper end of cushioning is equipped with fixed plate 25, be equipped with the through-hole with the portion 23 looks adaptation of cushioning on the explosion-proof cushioning case 21, cushioning portion 23 passes the through-hole and is connected with fixed plate 25 and the overcoat has cushioning spring 26, and cushioning spring 26 one end and fixed plate 25 fixed connection, the other end and explosion-proof cushioning case 21 fixed connection, the diameter of cushioning portion 23 is less than the diameter of fixed part 24, the diameter of fixed plate 25 is greater than the external diameter of cushioning spring 26. When using or installing touch display screen, can all bring certain vibrations and pressure for the display screen frame, and the display screen frame is fixed in the ordinary pressure box only at the front end, the cushioning structure is established at the display screen frame rear end, for the display screen frame rear end provides holding power and has the effect of cushioning, makes the display screen frame more stable fix in the ordinary pressure box, and explosion-proof cushioning case can follow the cushioning portion and carry out reciprocating motion, provides an ascending power of explosion-proof cushioning case through the cushioning spring, when the display screen frame vibrations or overweight, the cushioning structure provides the effect of cushioning support.
The damping springs 26 are also arranged between the fixing plate 25 and the upper inner wall of the explosion-proof damping box 21, at least three limiting columns 32 are further arranged in the explosion-proof damping box 21, and the at least three limiting columns 32 uniformly surround the damping springs 26. The fixed plate top still is equipped with a bradyseism spring, and the bradyseism spring of fixed plate top is also provided an ascending power by the pressure when the bradyseism, and two bradyseism springs act simultaneously, improves the bradyseism performance of bradyseism structure, through fixed spacing post, can prevent that the bradyseism spring from being pressed or the back power of being drawn to warp is inhomogeneous, guarantees the stability of bradyseism spring.
A sealing ring 27 is arranged between the through hole and the damping part 23. The sealing performance of the explosion-proof shock absorption box is improved, and the shock absorption spring is prevented from rusting and losing efficacy.
The normal pressure box 5 is provided with a device mounting port 28 corresponding to the position of the touch display 2, a plurality of switch mounting ports are arranged below the device mounting port of the normal pressure box 5, and a power switch 29, a data transmission port 30 and an emergency stop switch 31 are correspondingly arranged at the switch mounting ports. And controlling the external equipment through the touch display screen, the power switch, the data transmission port and the scram switch.
The display screen frame 1 is fixed in the normal pressure box 5 through the screw. The detachable structure is arranged between the display frame and the normal pressure box body, so that the disassembly, assembly and transportation are convenient.
The positive pressure explosion-proof box with the integrated structure can be suitable for being installed in various forms of embedding, hanging, standing and the like.
As shown in fig. 6, in the embodiment 2 of the present utility model, the display frame to be inflated by positive pressure is placed outside the normal pressure box body, and a split structure is adopted, and an air inlet and outlet pipe and an electric wire are connected between the display frame and the normal pressure box body, so that the display frame occupies a small space, and can be placed on equipment, and is exquisite and beautiful.
The foregoing disclosure is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, which is defined by the appended claims.
Claims (10)
1. The utility model provides a positive pressure explosion-proof case of function is blown in area, includes display screen frame (1) and touch display (2), touch display (2) set up on one side terminal surface of display screen frame (1), the bottom of display screen frame (1) is provided with access pipe (3), blast pipe (4) and positive pressure inflatable structure (6), positive pressure inflatable structure (6) are including the admission line, be equipped with on the admission line air source joint (7) that connect gradually and with access pipe (3) be connected sweep switch gas accuse bi-pass valve (8), its characterized in that: the positive pressure explosion-proof box further comprises a normal pressure box body (5), the display screen frame (1) and the positive pressure inflating structure (6) are both arranged on the inner side of the normal pressure box body (5), the positive pressure inflating structure (6) further comprises an exhaust pipeline, and a fire-retarding discharge joint (9) and a purging exhaust gas control two-way valve (10) connected with the exhaust pipe (4) are sequentially arranged on the exhaust pipeline.
2. The positive pressure explosion-proof box with a sweeping and blowing function according to claim 1, wherein: the positive pressure inflation structure (6) further comprises an explosion-proof timing switch (11) and a purging timing (12), wherein one end of the purging timing (12) is connected with the explosion-proof timing switch (11) while the other end is connected with the purging switch pneumatic control two-way valve (8) and the purging exhaust pneumatic control two-way valve (10).
3. The positive pressure explosion-proof box with a sweeping and blowing function according to claim 2, wherein: the positive pressure inflatable structure (6) further comprises a five-way distributor (13), a differential pressure display meter (14), an explosion-proof differential pressure switch (15) and an explosion-proof audible and visual alarm (16), the five-way distributor (13) is connected with the exhaust pipe (4), the purge exhaust gas pneumatic control two-way valve (10), the differential pressure display meter (14) and the explosion-proof differential pressure switch (15) at the same time, an NO contact and an NC contact are arranged on the explosion-proof differential pressure switch (15), when the differential pressure display meter (14) detects that the air pressure in the display screen frame (1) is lower than a set value, the explosion-proof differential pressure switch (15) is connected with the NC contact, and when the explosion-proof differential pressure switch (15) is connected with the NC contact, the explosion-proof audible and visual alarm (16) is communicated.
4. A positive pressure explosion-proof box with a sweeping and blowing function according to claim 3, wherein: when the pressure difference display meter (14) detects that the air pressure in the display screen frame (1) reaches a set value, the explosion-proof pressure difference switch (15) is connected with the NO contact, and when the explosion-proof pressure difference switch (15) is connected with the NO contact, the explosion-proof timing switch (11) is connected.
5. The positive pressure explosion-proof box with a sweeping and blowing function according to claim 1, wherein: the positive pressure inflation structure (6) further comprises a pressure maintaining throttle valve (17) and a pressure maintaining exhaust throttle valve (18), the pressure maintaining throttle valve (17) is connected with the purge switch pneumatic control two-way valve (8) in parallel, and the pressure maintaining exhaust throttle valve (18) is connected with the purge exhaust pneumatic control two-way valve (10) in parallel.
6. The positive pressure explosion-proof box with a sweeping and blowing function according to claim 1, wherein: the utility model provides a shock absorber is characterized in that a plurality of shock absorber structure (19) are arranged between display screen frame (1) bottom surface and normal pressure box (5) inner bottom surface, shock absorber structure (19) include bracing piece (20), explosion-proof shock absorber case (21) and shock absorber rod (22), bracing piece (20) one end and display screen frame (1) bottom surface fixed connection other end and explosion-proof shock absorber case (21) fixed connection, shock absorber rod (22) include shock absorber portion (23) and fixed part (24), fixed part (24) and normal pressure box (5) inner bottom surface fixed connection, shock absorber portion (23) upper end is equipped with fixed plate (25), be equipped with on explosion-proof shock absorber case (21) with shock absorber portion (23) looks adaptation's through-hole, shock absorber portion (23) pass through-hole and fixed plate (25) and are connected with shock absorber spring (26), shock absorber spring (26) one end and fixed plate (25) fixed connection, the other end and explosion-proof shock absorber case (21) fixed connection, shock absorber portion (23) diameter (24) are less than fixed plate (25) external diameter shock absorber portion's) (24).
7. The positive pressure explosion-proof box with the sweeping function according to claim 6, wherein: the anti-explosion damping device is characterized in that a damping spring (26) is also arranged between the fixing plate (25) and the upper inner wall of the anti-explosion damping box (21), at least three limiting columns (32) are further arranged in the anti-explosion damping box (21), and the at least three limiting columns (32) uniformly surround the damping spring (26).
8. The positive pressure explosion-proof box with the sweeping function according to claim 6, wherein: a sealing ring (27) is arranged between the through hole and the shock absorption part (23).
9. The positive pressure explosion-proof box with a sweeping and blowing function according to claim 1, wherein: the normal pressure box (5) is provided with a device mounting port (28) corresponding to the position of the touch display (2), a plurality of switch mounting ports are arranged below the device mounting port of the normal pressure box (5), and a power switch (29), a data transmission port (30) and a scram switch (31) are correspondingly arranged at the switch mounting ports.
10. The positive pressure explosion-proof box with a sweeping and blowing function according to claim 1, wherein: the display screen frame (1) is characterized in that a plurality of connecting plates with screw holes are arranged on the outer side wall of the display screen frame (1), and the display screen frame (1) is fixed in the normal pressure box body (5) through screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320441106.XU CN219499742U (en) | 2023-03-10 | 2023-03-10 | Positive pressure explosion-proof box with sweeping and blowing functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320441106.XU CN219499742U (en) | 2023-03-10 | 2023-03-10 | Positive pressure explosion-proof box with sweeping and blowing functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219499742U true CN219499742U (en) | 2023-08-08 |
Family
ID=87484813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320441106.XU Active CN219499742U (en) | 2023-03-10 | 2023-03-10 | Positive pressure explosion-proof box with sweeping and blowing functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219499742U (en) |
-
2023
- 2023-03-10 CN CN202320441106.XU patent/CN219499742U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN219499742U (en) | Positive pressure explosion-proof box with sweeping and blowing functions | |
| CN101165388A (en) | Leakage-detecting tool for gas supply system and its method | |
| CN206864930U (en) | A kind of fire-retardent distribution box | |
| CN201266147Y (en) | Noise reducer for gas sampling pump and gas sampling instrument equipped with the same | |
| CN202956599U (en) | Positive pressure ventilation control system | |
| CN207625095U (en) | A kind of power control unit based on Internet of Things | |
| CN215841314U (en) | High flame retardant control cable | |
| CN212167454U (en) | Experiment cabin and experiment cabin assembly with same | |
| CN210603742U (en) | Vehicle-mounted air conditioner air tightness detection device | |
| CN208169585U (en) | Active pipe pressure type flame proof valve | |
| CN208191083U (en) | A kind of explosion-proof control box that sludge drying process dust-separation is closed | |
| CN219329874U (en) | Inflatable positive pressure explosion-proof control box | |
| CN217440841U (en) | Active bidirectional explosion-proof valve device with external air chamber | |
| CN218972410U (en) | Gas storage mechanism | |
| CN215000932U (en) | Special gas storage tank for alumina storage and transportation device | |
| CN219041219U (en) | Environment-friendly gas-insulated switchgear | |
| CN212078237U (en) | Air film building with fire detection function | |
| CN111927551B (en) | Gas pretreatment device applied to monitoring of underground laser beam tube of coal mine | |
| CN214699366U (en) | Explosion-proof overpressure exhaust valve for civil air defense engineering | |
| CN209115296U (en) | A kind of exhaust structure used for air compressor | |
| CN220249059U (en) | Pressure valve convenient to overhaul | |
| CN217401972U (en) | Air inlet pipe with air leakage prevention mechanism | |
| CN213452893U (en) | Sulfur hexafluoride air supplement unit with little water test | |
| CN217469278U (en) | Dehumidification looped netowrk cabinet convenient to adjust atmospheric pressure | |
| CN216903838U (en) | Intelligent positive pressure type explosion-proof electrical control cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |