CN113269951A - Gas safety protection device with detection function - Google Patents
Gas safety protection device with detection function Download PDFInfo
- Publication number
- CN113269951A CN113269951A CN202110545322.4A CN202110545322A CN113269951A CN 113269951 A CN113269951 A CN 113269951A CN 202110545322 A CN202110545322 A CN 202110545322A CN 113269951 A CN113269951 A CN 113269951A
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- handle
- protection device
- safety protection
- detection function
- rod
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- 238000001514 detection method Methods 0.000 title claims abstract description 25
- 230000008602 contraction Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- 230000003116 impacting effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
- G08B21/16—Combustible gas alarms
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2876—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for valves
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a gas safety protection device with a detection function, which comprises a valve body, a first connecting flange, a second connecting flange, a detector, a barometer and a valve handle mechanism. According to the invention, the valve handle mechanism is arranged at the upper end of the valve body, when the grab handle moves to the front end of the fixed handle to close the valve body, the buckle can be embedded into the inner side of the grab handle, so that the grab handle is limited, and the advantages of limiting and fixing the grab handle and preventing external force from impacting and deviating are achieved; through having set up locking mechanical system in valve handle mechanism upper end, press the push rod, make the push rod press first folding rod and second folding rod, make the interval shorten between first folding rod and the second folding rod to drive connecting rod and buckle and remove spacing to the grab handle, can make the grab handle normally swing, reached and to have relieved fast and spacing advantage to the grab handle.
Description
Technical Field
The invention particularly relates to a gas safety protection device with a detection function, and relates to the field related to gas safety.
Background
At present, as fuel, gas is used, and the pipeline gas is installed in kitchens in thousands of households, especially in large and medium cities, wherein a gas valve is an important component for opening or blocking the pipeline gas by controlling the opening and closing of the gas valve.
When the protection device for gas safety used, because lack locking device for the external force striking causes external force easily to appear when the valve rod is used, thereby makes the valve open, the phenomenon of gas leakage appears, causes the hidden danger of safety.
Disclosure of Invention
Accordingly, in order to solve the above-mentioned disadvantages, the present invention provides a gas safety protection device having a detection function.
The invention is realized in such a way that a gas safety protection device with a detection function is constructed, the device comprises a valve body, a first connecting flange, a second connecting flange, a detector, a barometer and a valve handle mechanism, the first connecting flange is arranged at the left end of the valve body, the valve handle mechanism is installed at the top of the valve body, the valve handle mechanism comprises a fixed handle, a rotating shaft, a grab handle, a pointer, graduated scales, a guide groove and a locking mechanism, the grab handle is connected with the top of the valve body through the rotating shaft, the fixed handle is arranged at the upper end of the rotating shaft, the pointer is arranged at the left end of the grab handle, the graduated scales are equidistantly distributed at the left end of the top of the fixed handle, the guide groove is formed in the right end of the fixed handle, the grab handle is in sliding fit with the inner side of the guide groove, and the locking mechanism is arranged at the right end of the fixed handle.
Preferably, the second connecting flange is installed at the right end of the valve body, the detector is installed at the top of the valve body, and the valve body is connected with the bottom of the barometer.
Preferably, locking mechanical system is including fixed frame, connecting rod, buckle, shrink mechanism, push rod, ejector pad and uide bushing, fixed frame is installed in fixed handle right-hand member, the connecting rod embedding is inboard in fixed frame rear end and guide way, the connecting rod is fixed with the buckle front end, shrink mechanism is installed to the connecting rod front end, shrink mechanism is connected with the push rod rear end, the push rod is fixed as an organic whole with the ejector pad rear end, the push rod is sliding fit in the uide bushing.
Preferably, shrink mechanism includes first slide shaft, first folding rod, second folding rod, first spout, second slide shaft, pressure spring and second spout, first slide shaft is connected with the connecting rod front end, first slide shaft and first folding rod front end normal running fit, first folding rod and second folding rod rear end swing joint, first folding rod and second folding rod all with the inboard sliding fit of first spout, the second folding rod front end is provided with the second slide shaft, first slide shaft passes through pressure spring and second slide shaft rear end elastic connection, first slide shaft and second slide shaft all with the inboard sliding fit of second spout.
Preferably, the first folding bar and the second folding bar have the same structure, and the first folding bar and the second folding bar are configured to have a parallelogram shape with each other.
Preferably, the inner side walls of the first sliding groove and the second sliding groove are smooth, and the first sliding groove and the second sliding groove are vertically distributed.
Preferably, the cross section of the buckle is in an isosceles trapezoid shape, and the buckle is embedded in the inner side of the lower end of the grab handle.
Preferably, the guide sleeve is cylindrical with an inner cavity, and the push rod penetrates through the inner side of the guide sleeve.
Preferably, the pointer synchronously swings along with the left end of the grab handle, and the pointer is positioned right above the graduated scale.
Preferably, the guide groove has an arc shape, and the grip is fitted into the inner side of the guide groove.
Preferably, the pressure spring is made of spring steel and has excellent elastic potential energy.
Preferably, the first sliding shaft and the second sliding shaft are made of carbon steel and have high hardness.
The invention has the following advantages: the invention provides a gas safety protection device with a detection function through improvement, compared with the same type of equipment, the gas safety protection device has the following improvements:
the method has the advantages that: according to the gas safety protection device with the detection function, the valve handle mechanism is arranged at the upper end of the valve body, when the grab handle moves to the front end of the fixed handle to close the valve body, the buckle can be embedded into the inner side of the grab handle, so that the grab handle is limited, and the advantages that the grab handle can be limited and fixed, and the external force impact deviation is prevented are achieved.
The method has the advantages that: according to the gas safety protection device with the detection function, the locking mechanism is arranged at the upper end of the valve handle mechanism, the push rod is pressed, the first folding rod and the second folding rod are pressed by the push rod, the distance between the first folding rod and the second folding rod is shortened, the connecting rod and the buckle are driven to release the limit of the grab handle, the grab handle can normally swing, and the advantage that the limit of the grab handle can be quickly released is achieved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic perspective view of the valve handle mechanism of the present invention;
FIG. 3 is a schematic cross-sectional view of the valve handle mechanism of the present invention;
FIG. 4 is a schematic cross-sectional view of the locking mechanism of the present invention;
fig. 5 is a schematic cross-sectional structure of the retracting mechanism of the present invention.
Wherein: the valve comprises a valve body-1, a first connecting flange-2, a second connecting flange-3, a detector-4, a barometer-5, a valve handle mechanism-6, a fixed handle-61, a rotating shaft-62, a grab handle-63, a pointer-64, a graduated scale-65, a guide groove-66, a locking mechanism-67, a fixed frame-671, a connecting rod-672, a buckle-673, a contraction mechanism-674, a push rod-675, a push block-676, a guide sleeve-677, a first sliding shaft-6741, a first folding rod-6742, a second folding rod-6743, a first sliding groove-6744, a second sliding shaft-6745, a pressure spring-6746 and a second sliding groove-6747.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 5, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
The first embodiment is as follows:
referring to fig. 1, the present invention provides a protection device for gas safety with detection function, including a valve body 1, a first connecting flange 2, a second connecting flange 3, a detector 4, a barometer 5 and a valve handle mechanism 6, wherein the first connecting flange 2 is arranged at the left end of the valve body 1, the valve handle mechanism 6 is installed at the top of the valve body 1, the second connecting flange 3 is installed at the right end of the valve body 1, the detector 4 is installed at the top of the valve body 1, and the valve body 1 is connected with the bottom of the barometer 5.
Referring to fig. 2 and 3, the present invention provides a gas safety protection device with detection function by improving, a valve handle mechanism 6 includes a fixed handle 61, a rotation shaft 62, a handle 63, a pointer 64, a scale 65, a guide groove 66 and a locking mechanism 67, the handle 63 is connected with the top of the valve body 1 through the rotation shaft 62, the upper end of the rotation shaft 62 is provided with the fixed handle 61, the left end of the handle 63 is provided with the pointer 64, the scale 65 is equidistantly distributed on the left end of the top of the fixed handle 61, the right end of the fixed handle 61 is provided with the guide groove 66, the handle 63 is in sliding fit with the inner side of the guide groove 66, the right end of the fixed handle 61 is provided with the locking mechanism 67, the pointer 64 synchronously swings along with the left end of the handle 63, the pointer 64 is located right above the scale 65, the guide groove 66 is arc-shaped, and the grip 63 is embedded inside the guide groove 66, which is beneficial to the effect of making the grip 63 move smoothly.
Referring to fig. 4, the present invention provides a protection device for gas safety with detection function by improvement, the locking mechanism 67 includes a fixing frame 671, a connecting rod 672, a buckle 673, a retracting mechanism 674, a push rod 675, a push block 676 and a guide sleeve 677, the fixing frame 671 is installed at the right end of the fixing handle 61, the connecting rod 672 is embedded in the rear end of the fixing frame 671 and the inner side of the guide groove 66, the connecting rod 672 is fixed with the front end of the buckle 673, the front end of the connecting rod 672 is installed with the retracting mechanism 674, the retracting mechanism 674 is connected with the rear end of the push rod 675, the push rod 675 is fixed with the rear end of the push block 676 as a whole, the push rod 675 is in sliding fit with the inner side of the guide sleeve 677, the cross section of the buckle 673 is in isosceles trapezoid shape, and the buckle 673 is embedded in the inner side of the lower end of the grab handle 63, which is beneficial to perform the function of limiting the grab handle 63, the guide sleeve 677 is in cylindrical shape with an inner cavity, and the push rod 675 penetrates through the inner side of the guide sleeve 677, which facilitates smooth movement of push rod 675.
Referring to fig. 5, the present invention provides a gas safety protection device with a sensing function by improving a structure of a retracting mechanism 674 including a first sliding shaft 6741, a first folding bar 6742, a second folding bar 6743, a first sliding groove 6744, a second sliding shaft 6745, a compression spring 6746, and a second sliding groove 6747, the first sliding shaft 6741 is connected to a front end of a connecting rod 672, the first sliding shaft 6741 is rotatably engaged with a front end of the first folding bar 6742, the first folding bar 6742 is movably connected to a rear end of the second folding bar 6743, the first folding bar 6742 and the second folding bar 6743 are slidably engaged with an inner side of the first sliding groove 6744, the second sliding shaft 6745 is provided at a front end of the second folding bar 6743, the first sliding shaft 6741 is elastically connected to a rear end of the second sliding shaft 6745 by the compression spring 6746, the first sliding shaft 6741 and the second sliding shaft 6745 are slidably engaged with an inner side of the second sliding groove 6747, the first folding bar 6742 and the second folding bar 6743 are formed in parallel with each other, the inner side walls of the first sliding grooves 6744 and the inner side walls of the second sliding grooves 6747 are smooth, the first sliding grooves 6744 and the second sliding grooves 6747 are perpendicular to each other and are beneficial to guiding the first sliding shafts 6741 and the second sliding shafts 6745 respectively, the compression springs 6746 are made of spring steel, elastic potential energy is excellent, the first sliding shafts 6741 and the second sliding shafts 6745 are made of carbon steel, and hardness is high.
Example two:
the first sliding shaft 6741 and the second sliding shaft 6745 are the same in size, the first sliding shaft 6741 and the second sliding shaft 6745 are symmetrically distributed, the first folding rod 6742 and the second folding rod 6743 can swing stably, the push rod 675 is positioned in the same horizontal direction with the center line of the push block 676, and the push rod 675 can move stably.
The invention provides a gas safety protection device with a detection function through improvement, and the working principle is as follows;
firstly, horizontally placing a gas safety protection device with a detection function before use;
secondly, when the gas safety protection device is used, the upper ends of the first connecting flange 2 and the second connecting flange 3 are connected with an upper guide pipe, so that the gas safety protection device is installed;
thirdly, the air pressure in the valve body 1 can be checked through the air pressure gauge 5, and whether the valve body 1 leaks or not can be detected through the detector 4, so that the early warning of a user is facilitated;
fourthly, when the grab handle 63 swings, the pointer 64 is driven to swing, and the size of the opened valve can be observed through the graduated scale 65;
fifthly, when the grab handle 63 moves to the front end of the fixed handle 61 to close the valve body 1, the buckle 673 can be embedded into the inner side of the grab handle 63, so that the grab handle 63 is limited, the grab handle 63 can be limited and fixed, and the external force can be prevented from impacting and deviating;
sixthly, press the push rod 675 simultaneously, make the push rod 675 press first folding rod 6742 and second folding rod 6743, make the interval shorten between first folding rod 6742 and the second folding rod 6743 to drive connecting rod 672 and buckle 673 and remove the spacing to grab handle 63, can make grab handle 63 normally swing, reached and to have relieved fast and spacing to grab handle 63, convenient to use is swift.
The invention provides a gas safety protection device with a detection function through improvement, the valve handle mechanism 6 is arranged at the upper end of the valve body 1, when the grab handle 63 moves to the front end of the fixed handle 61 to close the valve body 1, the buckle 673 can be embedded into the inner side of the grab handle 63, so that the grab handle 63 is limited, and the advantages of limiting and fixing the grab handle 63 and preventing external force from impacting and deviating are achieved; through having set up locking mechanical system 67 in valve handle mechanism 6 upper end, pressing push rod 675 makes push rod 675 press first folding pole 6742 and second folding pole 6743, makes the interval shorten between first folding pole 6742 and the second folding pole 6743 to drive connecting rod 672 and buckle 673 and remove spacing to grab handle 63, can make grab handle 63 normally swing, reached and can remove fast and spacing advantage to grab handle 63.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described, and the standard parts used in the present invention are all available on the market, the special-shaped parts can be customized according to the description and the accompanying drawings, the specific connection mode of each part adopts the conventional means of bolt and rivet, welding and the like mature in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, and the details are not described herein.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A gas safety protection device with a detection function comprises a valve body (1), a first connecting flange (2), a second connecting flange (3), a detector (4) and a barometer (5), wherein the first connecting flange (2) is arranged at the left end of the valve body (1);
the method is characterized in that: still include valve handle mechanism (6), install in valve body (1) top valve handle mechanism (6), valve handle mechanism (6) are connected with valve body (1) top through axis of rotation (62) including fixed handle (61), axis of rotation (62), grab handle (63), pointer (64), scale (65), guide way (66) and locking mechanical system (67), grab handle (63) are connected with valve body (1) top through axis of rotation (62), axis of rotation (62) upper end is provided with fixed handle (61), grab handle (63) left end is provided with pointer (64), fixed handle (61) top left end equidistance distributes and has scale (65), guide way (66) have been seted up to fixed handle (61) right-hand member, grab handle (63) and guide way (66) inboard sliding fit, fixed handle (61) right-hand member is provided with locking mechanical system (67).
2. The gas safety protection device with detection function according to claim 1, characterized in that: second flange (3) are installed to valve body (1) right-hand member, detector (4) are installed at valve body (1) top, valve body (1) is connected with barometer (5) bottom.
3. The gas safety protection device with detection function according to claim 1, characterized in that: the locking mechanism (67) comprises a fixing frame (671), a connecting rod (672), a buckle (673), a contraction mechanism (674), a push rod (675), a push block (676) and a guide sleeve (677), the fixing frame (671) is installed at the right end of a fixing handle (61), the connecting rod (672) is embedded into the rear end of the fixing frame (671) and the inner side of a guide groove (66), the connecting rod (672) is fixed with the front end of the buckle (673), the contraction mechanism (674) is installed at the front end of the connecting rod (672), the contraction mechanism (674) is connected with the rear end of the push rod (675), the push rod (675) and the rear end of the push block (676) are fixed into a whole, and the push rod (675) and the inner side of the guide sleeve (677) are in.
4. The gas safety protection device with detection function according to claim 3, characterized in that: the contraction mechanism (674) comprises a first sliding shaft (6741), a first folding rod (6742), a second folding rod (6743), a first sliding groove (6744), a second sliding shaft (6745), a pressure spring (6746) and a second sliding groove (6747), the first sliding shaft (6741) is connected with the front end of the connecting rod (672), the first sliding shaft (6741) is in rotating fit with the front end of the first folding rod (6742), the first folding rod (6742) is movably connected with the rear end of the second folding rod (6743), the first folding rod (6742) and the second folding rod (6743) are in sliding fit with the inner side of the first sliding chute (6744), a second sliding shaft (6745) is arranged at the front end of the second folding rod (6743), the first sliding shaft (6741) is elastically connected with the rear end of the second sliding shaft (6745) through a pressure spring (6746), the first sliding shaft (6741) and the second sliding shaft (6745) are in sliding fit with the inner side of the second sliding groove (6747).
5. The gas safety protection device with detection function according to claim 4, characterized in that: the first folding bar (6742) and the second folding bar (6743) have the same structure, and the first folding bar (6742) and the second folding bar (6743) are mutually formed into a parallelogram shape.
6. The gas safety protection device with detection function according to claim 4, characterized in that: the inner side walls of the first sliding groove (6744) and the second sliding groove (6747) are smooth, and the first sliding groove (6744) and the second sliding groove (6747) are vertically distributed.
7. The gas safety protection device with detection function according to claim 3, characterized in that: the cross section of the buckle (673) is in an isosceles trapezoid shape, and the buckle (673) is embedded into the inner side of the lower end of the grab handle (63).
8. The gas safety protection device with detection function according to claim 3, characterized in that: the guide sleeve (677) is in a cylindrical shape with an inner cavity, and the push rod (675) penetrates through the inner side of the guide sleeve (677).
9. The gas safety protection device with detection function according to claim 1, characterized in that: the pointer (64) synchronously swings along with the left end of the grab handle (63), and the pointer (64) is positioned at the right upper end of the graduated scale (65).
10. The gas safety protection device with detection function according to claim 1, characterized in that: the guide groove (66) is arc-shaped, and the grip (63) is fitted into the inner side of the guide groove (66).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110545322.4A CN113269951A (en) | 2021-05-19 | 2021-05-19 | Gas safety protection device with detection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110545322.4A CN113269951A (en) | 2021-05-19 | 2021-05-19 | Gas safety protection device with detection function |
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| Publication Number | Publication Date |
|---|---|
| CN113269951A true CN113269951A (en) | 2021-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110545322.4A Pending CN113269951A (en) | 2021-05-19 | 2021-05-19 | Gas safety protection device with detection function |
Country Status (1)
| Country | Link |
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| CN (1) | CN113269951A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116765701A (en) * | 2023-08-22 | 2023-09-19 | 天津市瑞金金属制品有限公司 | Positioning welding device for photovoltaic bracket production |
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| GB479782A (en) * | 1936-09-22 | 1938-02-11 | James Herbert Bingham | Improvements in or relating to gas meters |
| CN205722323U (en) * | 2016-06-29 | 2016-11-23 | 威海拙诚燃气安全设备有限公司 | A kind of gas safety detection device |
| CN207961589U (en) * | 2018-02-12 | 2018-10-12 | 董服义 | A kind of hammerlock formula loose joint gas valve |
| CN208185547U (en) * | 2018-04-09 | 2018-12-04 | 长沙华润燃气有限公司 | A kind of fuel gas safety valve of fast assembling-disassembling |
| CN111585512A (en) * | 2020-06-06 | 2020-08-25 | 泉州泉港博洋机械设计有限公司 | Stable voltage control equipment for photovoltaic inverter |
| CN211474448U (en) * | 2019-11-30 | 2020-09-11 | 山东浩宇能源有限公司 | Energy-saving circulating ammonia water pump |
| CN112145738A (en) * | 2020-10-13 | 2020-12-29 | 祁东中燃城市燃气发展有限公司 | Novel flow valve for gas delivery |
| CN212251430U (en) * | 2020-05-09 | 2020-12-29 | 常州新睿思能源设备有限公司 | Double-pressure cut-off device of gas pressure regulator |
-
2021
- 2021-05-19 CN CN202110545322.4A patent/CN113269951A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB479782A (en) * | 1936-09-22 | 1938-02-11 | James Herbert Bingham | Improvements in or relating to gas meters |
| CN205722323U (en) * | 2016-06-29 | 2016-11-23 | 威海拙诚燃气安全设备有限公司 | A kind of gas safety detection device |
| CN207961589U (en) * | 2018-02-12 | 2018-10-12 | 董服义 | A kind of hammerlock formula loose joint gas valve |
| CN208185547U (en) * | 2018-04-09 | 2018-12-04 | 长沙华润燃气有限公司 | A kind of fuel gas safety valve of fast assembling-disassembling |
| CN211474448U (en) * | 2019-11-30 | 2020-09-11 | 山东浩宇能源有限公司 | Energy-saving circulating ammonia water pump |
| CN212251430U (en) * | 2020-05-09 | 2020-12-29 | 常州新睿思能源设备有限公司 | Double-pressure cut-off device of gas pressure regulator |
| CN111585512A (en) * | 2020-06-06 | 2020-08-25 | 泉州泉港博洋机械设计有限公司 | Stable voltage control equipment for photovoltaic inverter |
| CN112145738A (en) * | 2020-10-13 | 2020-12-29 | 祁东中燃城市燃气发展有限公司 | Novel flow valve for gas delivery |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116765701A (en) * | 2023-08-22 | 2023-09-19 | 天津市瑞金金属制品有限公司 | Positioning welding device for photovoltaic bracket production |
| CN116765701B (en) * | 2023-08-22 | 2023-10-27 | 天津市瑞金金属制品有限公司 | Positioning welding device for photovoltaic bracket production |
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Application publication date: 20210817 |