CN113332631A - Novel fire extinguishing controller - Google Patents
Novel fire extinguishing controller Download PDFInfo
- Publication number
- CN113332631A CN113332631A CN202110754929.3A CN202110754929A CN113332631A CN 113332631 A CN113332631 A CN 113332631A CN 202110754929 A CN202110754929 A CN 202110754929A CN 113332631 A CN113332631 A CN 113332631A
- Authority
- CN
- China
- Prior art keywords
- fire extinguishing
- extinguishing controller
- block
- wall
- controller
- 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
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 230000002265 prevention Effects 0.000 claims abstract description 7
- 230000008878 coupling Effects 0.000 claims description 21
- 238000010168 coupling process Methods 0.000 claims description 21
- 238000005859 coupling reaction Methods 0.000 claims description 21
- 230000001629 suppression Effects 0.000 claims description 5
- 238000010030 laminating Methods 0.000 description 4
- 230000005489 elastic deformation Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/02—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires
- A62C3/0221—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires for tunnels
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Special Wing (AREA)
Abstract
The invention discloses a novel fire extinguishing controller which comprises a fire extinguishing controller, wherein a false touch prevention mechanism is arranged on the left side of the fire extinguishing controller, the top of a cover body is rotatably connected with a handle through a bearing, a block body is fixedly connected to the right side of the handle, a groove block is in clearance fit with the outer wall of the block body, and the groove block is fixedly connected to the left side of a door body of the fire extinguishing controller. This novel fire extinguishing controller, make the door body through the cover body and fire extinguishing controller laminate, and then can carry out the formula protection of wrapping up with the control panel of the fire extinguishing controller door body, and rotate the handle, make the handle drive the inner wall that the block moved into the groove piece, make the cover body can be stable laminate with the door body of fire extinguishing controller, avoid taking place the mistake and touch, make the riser pass through bolt threaded connection in external wall body department, and can be with the outer wall of sleeve immigration plate body, and laminate with the top of diaphragm, make the fire extinguishing controller can be quick place the location.
Description
Technical Field
The invention relates to the technical field of urban rail subways, in particular to a novel fire extinguishing controller.
Background
The subway is a rapid, large-traffic and electric power traction rail transit built in cities, trains run on fully closed lines, lines in a central urban area are basically arranged in underground tunnels, and lines outside the central urban area are generally arranged on viaducts or the ground.
Although current fire extinguishing controller can be applied to the use of subway, but the control panel who has current fire extinguishing controller exposes in the external world, though convenient to use person operates fire extinguishing controller, nevertheless if take place the mistake and touch, can cause the problem that fire extinguishing controller accident started.
Disclosure of Invention
The invention aims to provide a novel fire extinguishing controller, which aims to solve the problem that the control panel of the existing fire extinguishing controller in the background art is exposed to the outside, so that although a user can conveniently operate the fire extinguishing controller, if the fire extinguishing controller is touched by mistake, the fire extinguishing controller is started accidentally.
In order to achieve the purpose, the invention provides the following technical scheme: a novel fire extinguishing controller comprises a fire extinguishing controller, wherein the left side of the fire extinguishing controller is provided with an error touch prevention mechanism;
the false touch prevention mechanism comprises a cover body, a first connecting shaft, a bearing, a handle, a block body and a groove block;
the cover body rotates on the left of the door body of the cover body through first connecting axle and fire extinguishing controller and links to each other, the right side of the cover body is laminated on the left of the door body of the fire extinguishing controller, the inner wall of the cover body and the door body control panel outer wall clearance fit of fire extinguishing controller, the top of the cover body rotates through the bearing and links to each other there is the handle, the right side rigid coupling of handle has the block, the outer wall clearance fit of block has the recess piece, recess piece rigid coupling is in the door body left side of fire extinguishing controller. Laminating through the cover body with the door body of fire extinguishing controller, and then can carry out parcel formula protection with the control panel of the fire extinguishing controller door body to the rotation handle for the inner wall of recess piece is moved into to the handle drive block, makes the cover body can be stable laminate with the door body of fire extinguishing controller, avoids taking place the mistake and touches, causes the unexpected start-up of fire extinguishing controller.
Preferably, the observation window is installed on the left side of the cover body, and a handle is fixedly connected to the left side of the cover body.
Preferably, a positioning mechanism is arranged on the right side of the fire extinguishing controller;
the positioning mechanism comprises a sleeve, a plate body, a transverse plate, a second connecting shaft and a pulley;
the sleeve is fixedly connected to the right side of the fire extinguishing controller, a plate body is in clearance fit with the inner wall of the sleeve, a transverse plate is fixedly connected to the bottom of the plate body, and the top of the plate body is connected with pulleys through a second connecting shaft in a rotating mode. The riser passes through bolt threaded connection in external wall body department to can with the outer wall of sleeve immigration plate body, and laminate with the top of diaphragm, make the fire extinguishing controller can be quick place the location.
Preferably, the right side rigid coupling of diaphragm has the riser, the left side screw thread of riser links up with a plurality of bolts.
Preferably, a fixing mechanism is arranged on the right side of the fire extinguishing controller;
the fixing mechanism comprises a sliding rod, a sliding sleeve, a spring, an inclined block, a clamping block and a clamping groove block;
the utility model discloses a fire extinguishing controller, including slide bar, outer wall, sliding sleeve, slide bar rigid coupling in fire extinguishing controller's right side, the outer wall of slide bar slides and links to each other there is the sliding sleeve, the outer wall clearance fit of slide bar has the spring, the one end rigid coupling of spring in the outer wall of slide bar, the other end rigid coupling of spring in the outer wall of sliding sleeve, the bottom rigid coupling of sliding sleeve has the sloping block, the bottom of sloping block is laminated with the top of pulley mutually, the right side rigid coupling of sloping block has the fixture block, the right side joint of fixture block has the draw-in groove piece, draw-in groove piece rigid coupling in the left side of riser. The plate body drives the telescopic inner wall of sliding sleeve immigration, and pass behind the telescopic inner wall, the pulley contacts with the sloping block, and gravity through fire extinguishing controller self, make the pulley drive the sloping block and move right, and then make the sliding of sloping block accessible sliding sleeve and slide bar link to each other, make the sloping block drive the fixture block and move right, and then carry out the joint with fixture block and draw-in groove piece, and then can be quick install fire extinguishing controller, and can drive fire extinguishing controller rebound, make the laminating of sloping block cancellation and pulley, elastic deformation through the spring, make the sliding sleeve can drive sloping block and fixture block and move left, and then can cancel the joint with fixture block and draw-in groove piece, and then can carry out quick dismouting to fire extinguishing controller, it is comparatively convenient.
Compared with the prior art, the invention has the beneficial effects that: the invention has scientific and reasonable structure and safe and convenient use.
This novel fire extinguishing controller through the cover body, observation window, handle, the cooperation between block and the recess piece etc for laminate through the cover body and the door body of fire extinguishing controller, and then can carry out parcel formula protection with the control panel of the fire extinguishing controller door body, and rotate the handle, make the handle drive the inner wall that the block moved into the recess piece, make the cover body can be stable laminate with the door body of fire extinguishing controller, avoid taking place the mistake and touch, cause the unexpected start-up of fire extinguishing controller.
Through the plate body, the pulley, the sloping block, cooperation between sliding sleeve and the slide bar etc, make the plate body drive the telescopic inner wall of sliding sleeve immigration, and pass behind the telescopic inner wall, the pulley contacts with the sloping block, and through the gravity of fire extinguishing controller self, make the pulley drive the sloping block and move right, and then make the slip of sloping block accessible sliding sleeve and slide bar link to each other, make the sloping block drive the fixture block and move right, and then carry out the joint with fixture block and draw-in groove piece, and then can be quick install fire extinguishing controller, and can drive fire extinguishing controller rebound, make the laminating of sloping block cancellation and pulley, elastic deformation through the spring, make the sliding sleeve can drive sloping block and fixture block and move left, and then can cancel the joint with fixture block and draw-in groove piece, and then can carry out quick dismouting to fire extinguishing controller, and is comparatively convenient.
Through the cooperation between sleeve, plate body, diaphragm and the riser etc for the riser passes through bolt threaded connection in external wall body department, and can with the outer wall of sleeve immigration plate body, and with the top laminating of diaphragm, make the fire extinguishing controller can be quick place the location.
Drawings
FIG. 1 is a schematic diagram of the connection relationship of the present invention;
FIG. 2 is a schematic plan view of the fire suppression controller, housing and riser of FIG. 1;
FIG. 3 is a schematic view of the handle, viewing window and hand grip of FIG. 2;
fig. 4 is a schematic structural view of the riser, the runner and the second connecting shaft in fig. 2.
In the figure: 1. fire extinguishing controller, 2, handle, 3, observation window, 4, riser, 5, bolt, 6, mistake proofing touch mechanism, 601, cover body, 602, first connecting axle, 603, bearing, 604, handle, 605, block, 606, groove piece, 7, positioning mechanism, 701, sleeve, 702, plate body, 703, diaphragm, 704, second connecting axle, 705, pulley, 8, fixed establishment, 801, slide bar, 802, sliding sleeve, 803, spring, 804, sloping block, 805, fixture block, 806, slot block.
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. 1-4, the present invention provides a technical solution: a novel fire extinguishing controller comprises a fire extinguishing controller 1, the model of the fire extinguishing controller 1 is selected according to actual working requirements, a false touch prevention mechanism 6 is arranged on the left side of the fire extinguishing controller 1, the false touch prevention mechanism 6 comprises a cover body 601, a first connecting shaft 602, a bearing 603, a handle 604, a block body 605 and a groove block 606, the cover body 601 is rotatably connected with the left side of a door body of the fire extinguishing controller 1 through the first connecting shaft 602, so that the cover body 601 can rotate on the left side of the door body of the fire extinguishing controller 1, the right side of the cover body 601 is attached to the left side of the door body of the fire extinguishing controller 1, the inner wall of the cover body 601 is in clearance fit with the outer wall of a door body control panel of the fire extinguishing controller 1, the top of the cover body 601 is rotatably connected with the handle 604 through the bearing 603, so that the handle 604 can rotate on the top of the cover body 601, the block body 605 is fixedly connected to the right side of the handle 604, so that the handle 604 can drive the block body 605 to rotate, the outer wall clearance fit of block 605 has groove block 606, and groove block 606 rigid coupling is in the door body left side of fire extinguishing controller 1, and observation window 3 is installed on the left side of the cover body 601, and observation window 3 is used for observing the door body department control panel of the inside fire extinguishing controller 1 of the cover body 601, and the left side rigid coupling of the cover body 601 has handle 2, and handle 2 is used for driving the cover body 601 to rotate.
The right side of fire extinguishing controller 1 is equipped with positioning mechanism 7, positioning mechanism 7 includes sleeve 701, plate body 702, diaphragm 703, second connecting axle 704 and pulley 705, sleeve 701 rigid coupling is in fire extinguishing controller 1's right side, sleeve 701's inner wall clearance fit has plate body 702, make sleeve 701 can carry out elevating movement at plate body 702's outer wall, plate body 702's bottom rigid coupling has diaphragm 703, plate body 702's top is rotated through second connecting axle 704 and is linked together with pulley 705, make pulley 705 can rotate at plate body 702's top, the right side rigid coupling of diaphragm 703 has riser 4, the left side screw thread of riser 4 links together a plurality of bolts 5.
The right side of the fire extinguishing controller 1 is provided with a fixing mechanism 8, the fixing mechanism 8 comprises a sliding rod 801, a sliding sleeve 802, a spring 803, an inclined block 804, a clamping block 905 and a clamping block 806, the sliding rod 801 is fixedly connected to the right side of the fire extinguishing controller 1, the sliding sleeve 802 is connected to the outer wall of the sliding rod 801 in a sliding mode, the sliding sleeve 802 can move left and right on the outer wall of the sliding rod 801, the spring 803 is in clearance fit with the outer wall of the sliding rod 801, the spring 803 provides a force for the sliding sleeve 802 to move left on the outer wall of the sliding rod 801, one end of the spring 803 is fixedly connected to the outer wall of the sliding rod 801, the other end of the spring 803 is fixedly connected to the outer wall of the sliding sleeve 802, the inclined block 804 is fixedly connected to the bottom of the sliding sleeve 802, the top of the inclined block 705 is attached to the right side of the inclined block 804, the clamping block 805 is fixedly connected to the right side of the clamping block, and the clamping block 806 is fixedly connected to the left side of the vertical plate 4.
When the novel fire extinguishing controller is used, the cover body 601 is attached to the door body of the fire extinguishing controller 1, so that the control panel of the door body of the fire extinguishing controller 1 can be protected in a wrapping manner, the handle 604 is rotated, the handle 604 drives the block body 605 to move into the inner wall of the groove block 606, so that the cover body 601 can be stably attached to the door body of the fire extinguishing controller 1, accidental starting of the fire extinguishing controller 1 due to accidental touch is avoided, the vertical plate 4 can be connected to the external wall body through the bolt 5 in a threaded manner, the sleeve 701 can be moved into the outer wall of the plate body 702 and attached to the top of the transverse plate 703, the plate body 702 drives the sliding sleeve 802 to move into the inner wall of the sleeve 701, the pulley 705 is in contact with the inclined block 804 after penetrating through the inner wall of the sleeve 701, the pulley 705 drives the inclined block 804 through the gravity of the fire extinguishing controller 1, and further the inclined block 804 can be connected with the sliding rod 801 in a sliding manner through the sliding sleeve 802, the inclined block 804 drives the clamping block 805 to move rightwards, the clamping block 805 is clamped with the clamping groove block 806, the fire extinguishing controller 1 can be rapidly installed, the fire extinguishing controller 1 can be driven to move upwards, the inclined block 804 is not attached to the pulley 705, the sliding sleeve 802 can drive the inclined block 804 and the clamping block 805 to move leftwards through elastic deformation of the spring 803, the clamping block 805 and the clamping groove block 806 can be clamped, and the fire extinguishing controller 1 can be rapidly disassembled and conveniently.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A novel fire extinguishing controller comprises a fire extinguishing controller (1) and is characterized in that: the left side of the fire extinguishing controller (1) is provided with an error touch prevention mechanism (6);
the false touch prevention mechanism (6) comprises a cover body (601), a first connecting shaft (602), a bearing (603), a handle (604), a block body (605) and a groove block (606);
the cover body (601) rotates on the left side through a first connecting shaft (602) and the door body of the fire extinguishing controller (1) and is connected, the right side of the cover body (601) is attached to the left side of the door body of the fire extinguishing controller (1), the inner wall of the cover body (601) is in clearance fit with the outer wall of the door body control panel of the fire extinguishing controller (1), the top of the cover body (601) is connected with a handle (604) through a bearing (603) in a rotating mode, a block body (605) is fixedly connected to the right side of the handle (604), a groove block (606) is in clearance fit with the outer wall of the block body (605), and the groove block (606) is fixedly connected to the left side of the door body of the fire extinguishing controller (1).
2. The novel fire suppression controller according to claim 1, wherein: an observation window (3) is installed on the left side of the cover body (601), and a handle (2) is fixedly connected to the left side of the cover body (601).
3. The novel fire suppression controller according to claim 1, wherein: a positioning mechanism (7) is arranged on the right side of the fire extinguishing controller (1);
the positioning mechanism (7) comprises a sleeve (701), a plate body (702), a transverse plate (703), a second connecting shaft (704) and a pulley (705);
the sleeve (701) is fixedly connected to the right side of the fire extinguishing controller (1), a plate body (702) is in clearance fit with the inner wall of the sleeve (701), a transverse plate (703) is fixedly connected to the bottom of the plate body (702), and a pulley (705) is rotatably connected to the top of the plate body (702) through a second connecting shaft (704).
4. A novel fire suppression controller according to claim 3, wherein: the right side of diaphragm (703) is rigid coupling has riser (4), the left side screw thread of riser (4) links up with a plurality of bolts (5).
5. The novel fire suppression controller according to claim 1, wherein: a fixing mechanism (8) is arranged on the right side of the fire extinguishing controller (1);
the fixing mechanism (8) comprises a sliding rod (801), a sliding sleeve (802), a spring (803), an inclined block (804), a clamping block (905) and a clamping block (806);
slide bar (801) rigid coupling in the right side of fire extinguishing controller (1), the outer wall of slide bar (801) slides and links to each other has sliding sleeve (802), the outer wall clearance fit of slide bar (801) has spring (803), the one end rigid coupling of spring (803) is in the outer wall of slide bar (801), the other end rigid coupling of spring (803) is in the outer wall of sliding sleeve (802), the bottom rigid coupling of sliding sleeve (802) has sloping block (804), the bottom of sloping block (804) is laminated with the top of pulley (705) mutually, the right side rigid coupling of sloping block (804) has fixture block (805), the right side joint of fixture block (805) has slot piece (806), fixture slot piece (806) rigid coupling is in the left side of riser (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110754929.3A CN113332631A (en) | 2021-06-30 | 2021-06-30 | Novel fire extinguishing controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110754929.3A CN113332631A (en) | 2021-06-30 | 2021-06-30 | Novel fire extinguishing controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113332631A true CN113332631A (en) | 2021-09-03 |
Family
ID=77482452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110754929.3A Pending CN113332631A (en) | 2021-06-30 | 2021-06-30 | Novel fire extinguishing controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113332631A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111127749A (en) * | 2019-09-26 | 2020-05-08 | 杭州为我健康新零售科技有限公司 | Anti-theft system and processing method suitable for honey beverage vending machine |
| CN210659806U (en) * | 2019-08-22 | 2020-06-02 | 魏梅凤 | Multifunctional security door |
| CN111479418A (en) * | 2020-04-14 | 2020-07-31 | 江苏天安智联科技股份有限公司 | Vehicle-mounted delay reset circuit protection device capable of preventing mistaken collision and use method |
| CN212463747U (en) * | 2020-07-26 | 2021-02-02 | 潍坊英嘉新能源技术有限公司 | Switch board for thing networking convenient to installation |
| CN213271950U (en) * | 2020-10-13 | 2021-05-25 | 昆山通变电源设备有限公司 | Wall hanging type voltage stabilizer |
| CN216061740U (en) * | 2021-06-30 | 2022-03-18 | 辽宁省交通高等专科学校 | Novel fire extinguishing controller |
-
2021
- 2021-06-30 CN CN202110754929.3A patent/CN113332631A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210659806U (en) * | 2019-08-22 | 2020-06-02 | 魏梅凤 | Multifunctional security door |
| CN111127749A (en) * | 2019-09-26 | 2020-05-08 | 杭州为我健康新零售科技有限公司 | Anti-theft system and processing method suitable for honey beverage vending machine |
| CN111479418A (en) * | 2020-04-14 | 2020-07-31 | 江苏天安智联科技股份有限公司 | Vehicle-mounted delay reset circuit protection device capable of preventing mistaken collision and use method |
| CN212463747U (en) * | 2020-07-26 | 2021-02-02 | 潍坊英嘉新能源技术有限公司 | Switch board for thing networking convenient to installation |
| CN213271950U (en) * | 2020-10-13 | 2021-05-25 | 昆山通变电源设备有限公司 | Wall hanging type voltage stabilizer |
| CN216061740U (en) * | 2021-06-30 | 2022-03-18 | 辽宁省交通高等专科学校 | Novel fire extinguishing controller |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216061740U (en) | Novel fire extinguishing controller | |
| CN211874177U (en) | Door lock structure of armored switch cabinet | |
| CN113332631A (en) | Novel fire extinguishing controller | |
| CN201417892Y (en) | Control box for transformer station | |
| CN202011685U (en) | Loft elevator | |
| CN110714663B (en) | Villa elevator door lock structure | |
| CN112309737A (en) | Dual-power switch operating mechanism | |
| CN211950086U (en) | Window opener | |
| CN216341543U (en) | Automobile door lock with dustproof protection effect | |
| CN205472495U (en) | Safe jacking equipment | |
| CN214035180U (en) | Automobile door lock control device | |
| CN209398213U (en) | A kind of plug-type safety door | |
| CN112467540B (en) | Modular smart power grids switch board | |
| CN201526245U (en) | Wide-width fireproof rolling door with invisible guide rail | |
| CN205573958U (en) | Rail vehicle sliding plug door system's interior operating means | |
| CN216766331U (en) | Noise isolation device | |
| CN219959796U (en) | High-voltage reactive power automatic compensation device | |
| CN214122282U (en) | Portable electric power 10KV nuclear phase device | |
| CN218644148U (en) | Positioning type hanging sliding door without lower rail | |
| CN212318926U (en) | Automatic valve executor resets | |
| CN215745718U (en) | Hand bending device for automobile flat cable fixing part | |
| CN219123674U (en) | Emergency protection device | |
| CN212651269U (en) | Fire monitor operation control box | |
| CN220830589U (en) | Novel environment detection device for environment protection | |
| CN211500251U (en) | Opening and closing device and rail vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |