CN209819944U - Refrigerant storage tank - Google Patents
Refrigerant storage tank Download PDFInfo
- Publication number
- CN209819944U CN209819944U CN201822262381.7U CN201822262381U CN209819944U CN 209819944 U CN209819944 U CN 209819944U CN 201822262381 U CN201822262381 U CN 201822262381U CN 209819944 U CN209819944 U CN 209819944U
- Authority
- CN
- China
- Prior art keywords
- valve
- interface section
- liquid
- jar
- refrigerant
- 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
Landscapes
- Devices For Dispensing Beverages (AREA)
Abstract
The utility model belongs to refrigerant equipment field, concretely relates to refrigerant storage tank, including a jar body and jar mouth, be equipped with two jar mouths on the jar body, be respectively for the business turn over liquid jar mouth that is used for the business turn over gas jar mouth through the intake pipe and is used for through the feed liquor pipe, the clear liquid end that jar body bottom set up for the slope of one side height one side is low, and the feed liquor pipe is including the edge that is located upper portion jar mouth axial is established interface section immediately with connect in interface section lower extreme and to the pipe chute section of extending to the bottommost position prescription at the clear liquid end, be equipped with cover one on the business turn over liquid jar mouth, wear out interface section upper end cover one, interface section with connect through location seal structure between business turn over gas jar mouth and the cover one. This application can gather the refrigerant to the low-order angle through the clear liquid end of slope when refrigerant discharge and jar interior liquid reduces gradually, then locate the setting of the pipe section of sloping on the low-order angle through the location and thereby can realize that the refrigerant discharges as far as possible the refrigerant jar, the high-usage of refrigerant has reduced the purchase cost.
Description
Technical Field
The invention belongs to the field of refrigerant equipment, and particularly relates to a refrigerant storage tank.
Background
A refrigerant tank, which is a storage tank for a generally used air conditioning refrigerant, includes: the refrigerant discharge device comprises a pressure container, a discharge pipe and a gas injection opening, wherein the gas injection opening is used for discharging refrigerant to the container through gas A, the water level of the refrigerant in the pressure container is lowered, and when the water level of the refrigerant is lower than the lower end of the discharge pipe, the gas A is discharged through the discharge pipe. When the gas a is mixed and discharged to flow into the circulation system, there are disadvantages that problems may occur in the circulation system, the composition of the refrigerant is changed, or damage to the system may be caused. In addition, at this time, since all the refrigerant in the circulation system needs to be removed and then re-injected, time and cost required for the refrigerant replacement work are wasted. Therefore, when the refrigerant is discharged, the refrigerant tank is left with a margin so that the liquid level of the refrigerant R is not lower than the lower end of the discharge pipe. A considerable amount of refrigerant remains in the lower portion of the pressure vessel, and it is difficult to grasp the refrigerant level in the pressure vessel, so that a sufficient amount of refrigerant must be generally reserved to ensure the stability of refrigerant discharge. Generally, only 80% -90% of the purchased refrigerant can be used, and the utilization rate is low.
Disclosure of Invention
The invention aims to provide a refrigerant storage tank aiming at the problems.
The technical purpose of the invention is realized by the following technical scheme:
the utility model provides a refrigerant storage tank, includes a jar body and jar mouth, be equipped with two jar mouths on the jar body, be respectively for the business turn over liquid jar mouth that is used for the business turn over gas jar mouth through the intake pipe and is used for passing through the feed liquor pipe, jar body bottom is at the bottom of the clear liquid that the slope that one side height was low set up, the feed liquor pipe is including the edge that is located upper portion the jar mouth axial is established interface section immediately with connect in interface section lower extreme and to the pipe chute section of the bottommost position prescription at the bottom of the clear liquid to the extension, be equipped with cover one on the business turn over liquid jar mouth, wear out interface section upper end cover one, the interface section with connect through location seal structure between business turn over gas jar mouth and the cover one.
Preferably, the lower end of the inclined pipe section extends to a corner between the bottom end of the clear liquid bottom and the inner side wall of the tank body correspondingly connected, and a liquid inlet gap is reserved between the inclined pipe section and the inner side wall of the tank body and the clear liquid bottom.
This application can gather the refrigerant to the low-order angle through the clear liquid end of slope when refrigerant discharge and jar interior liquid reduces gradually, then locate the setting of the pipe section of sloping on the low-order angle through the location and thereby can realize that the refrigerant discharges as far as possible the refrigerant jar, the high-usage of refrigerant has reduced the purchase cost. In order to ensure the operability and the easy operability of the tank openings, the gas inlet and outlet and the liquid inlet and outlet are respectively operated from the two tank openings. Therefore, the mutual interference is less when the device is used, and the controllability is strong.
Preferably, the positioning and sealing structure comprises a positioning frame, wherein the outer side part of the positioning and sealing structure is arranged on the liquid inlet and outlet tank opening, the inner side part of the positioning and sealing structure is connected with the interface section in a positioning mode and used for limiting the relative position of the interface section and the liquid inlet and outlet tank opening, and a sealing ring is arranged above the positioning frame, is arranged around the interface section and abuts against the lower surface of the tank cover.
The setting of above-mentioned structure both can realize the effective simple and easy spiro union between cover one and the jar mouth, can guarantee again not following the sealing washer between rotatory interface section and the pivoted cover one, and cover one pushes up on the sealing washer promptly after screwing. The positioning frame is used for fixing the interface section and ensuring that the lower end of the inclined pipe section is located in the lowest position area in the tank body.
Preferably, the positioning frame is a circle of or uniformly distributed multi-section stand fixedly arranged in the liquid inlet and outlet port, the positioning frame is arranged on the stand, and a locking structure for limiting the relative position between the positioning frame and the stand is arranged between the positioning frame and the stand.
Preferably, the locking structure comprises a receiving groove which is arranged on the stand and at least has an upper end and is open towards one side of the center of the tank opening, and a scarf joint block which is arranged on the outer edge of the positioning frame and is matched with the receiving groove.
Preferably, the stand is provided with at least two receiving grooves with one large width and one small width, and the outer edge of the positioning frame is correspondingly provided with at least two scarfing blocks with one large width and one small width.
Preferably, the locating rack is connected the position of interface section has the caulking groove on cloth, be equipped with on the interface section with the abaculus of caulking groove adaptation, the interface section is equipped with the round holding ring outward, the sealing washer is located on the holding ring top surface, the abaculus is located on the holding ring bottom surface. Can carry out fixed point location to the feed liquor pipe through the setting of above-mentioned structure to the orientation, guarantee that the pipe chute section is installed fast and targets in place, also be difficult for colliding between the part, if accept the groove and the scarf joint piece mismatch also will lead to the cover can not install completely and target in place, also can remind assembly personnel. The matching of the positioning frame and the tank opening is used for positioning the positioning frame. The positioning frame and the interface section can be directly fixedly connected, and can also be positioned and combined as above, so long as the position of the inclined pipe section relative to the inner cavity of the tank body is ensured to be fixed.
Preferably, the first tank cover is in threaded connection with the liquid inlet and outlet tank opening. And a second tank cover is arranged on the tank inlet and outlet, and the air inlet pipe is arranged on the second tank cover in a penetrating manner.
Preferably, the upper end of the part of the interface section extending out of the first tank cover is screwed with a pipe cover, a valve structure is arranged between the pipe cover and the first tank cover on the interface section, the valve structure comprises a valve sleeve screwed in the interface section, a circle of liquid blocking ring arranged on the valve sleeve, a valve block arranged above the liquid blocking ring and provided with a valve hemisphere capable of plugging a central hole of the liquid blocking ring at the lower end, and a valve rod which sequentially penetrates through the pipe wall of the interface section and the valve sleeve and is inserted into the valve block and used for controlling the valve block to lift up and down.
Preferably, the valve rod extends into the front end of the valve sleeve and is provided with a ball head, the valve block is provided with a valve groove for accommodating the valve rod to be inserted into, the valve groove is a triangular groove with an inclined groove wall abutting against the ball head at the top and a triangular vertical cross section, a spring sleeved outside the valve hemisphere is arranged between the bottom of the valve block and the liquid blocking ring, at least the top of the valve block is provided with a circle of anti-deviation ring which is matched with an inner opening of the valve sleeve and is provided with a liquid outlet gap with an empty basket in the middle, a limiting part is arranged above the valve block in the valve sleeve, and a liquid passage is arranged between one side of the valve block opposite to the valve rod and the inner wall of the valve sleeve. The valve block is also provided with a liquid through channel which is communicated up and down, and a guide groove and a guide rod which are matched with each other are also arranged between the valve sleeve and the valve block. The valve body has a compact and simple structure, is directly arranged in the interface section, does not need to be provided with other channels for liquid outlet and flow guide, and is convenient to operate. The limiting part is an annular ring.
The arrangement of the anti-deviation ring can improve the stability of the valve block moving up and down along the valve sleeve. A limit guide groove and a limit guide rod structure which are matched with each other can be arranged between the valve sleeve and the valve block.
The liquid inlet and the liquid outlet can be stably and efficiently controlled through the arrangement of the valve structure, and due to the particularity of the refrigerant, the arrangement of the pipe cover ensures that air is not introduced into the refrigerant as far as possible, and the air cannot be delivered to a circulating system along with output.
The present application is not limited to the above-mentioned combination of the valve rod and the valve block, and any other structure that can realize the extension or rotation of the rotary valve rod to realize the lifting of the valve block can be applied to the present application.
The intake pipe wears to locate on the cover two, also can set up the valve structure the same with this application in the intake pipe, also can set up other valve structures on the existing market.
In conclusion, the invention has the following beneficial effects:
1. this application is divided into two chambeies with the jar body through setting up of baffle to thoroughly separate the refrigerant with the gas that is used for with the refrigerant extrusion, thereby oppress the baffle and remove the refrigerant from refrigerant inlet and outlet pipe discharge downwards behind the gas in the sealed chamber on it, the baffle top can reach basically that whole refrigerants send into circulation system when jar body bottom, and the refrigerant utilization ratio is high. And the gas that refrigerant and flowing back were used is thoroughly separated through the setting of gasbag, has stopped gas and liquid mixing exhaust risk, simultaneously because can reduce the requirement to the gas that dashes after the setting of gasbag, prior art fills the jar for the specific gas of stability of guaranteeing the refrigerant needs, nevertheless uses the equipment of this application after, used gas no longer restricted, need not specific gas and fills the jar to the cost has also been practiced thrift.
Drawings
FIG. 1 is a schematic structural diagram of the present application;
FIG. 2 is a schematic view of the interface section of the present application;
FIG. 3 is a schematic view of a portion of the present application in plan view;
fig. 4 is a schematic diagram of the stand structure.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
The first embodiment is as follows:
the utility model provides a refrigerant storage tank, includes jar body 1 and jar mouth, be equipped with two jar mouths on the jar body, be respectively for the business turn over gas pitcher mouth 2 that is used for through intake pipe 4 and be used for passing through the business turn over liquid jar mouth 3 of feed liquor pipe 5, jar body bottom is the clear liquid end 11 that the slope that one side is high one side is low sets up, the feed liquor pipe is including the edge that is located upper portion the jar mouth axial is found immediately interface section with connect in interface section 41 lower extreme and to the pipe chute section 42 of the bottommost position prescription at the clear liquid end to the extension, be equipped with a cover 31 on the business turn over liquid jar mouth, wear out interface section upper end the cover one, the interface section with connect through location seal structure between business turn over gas pitcher mouth and the cover one.
The lower end of the inclined pipe section extends to the bottommost end of the clear liquid and is correspondingly connected with the bottom end of the tank body on a corner between the inner side walls of the tank body, and the inclined pipe section and the inner side walls of the tank body are provided with a liquid inlet gap between the bottom end of the clear liquid and the bottom end of the tank body.
Example two:
different from the above embodiment, the positioning and sealing structure includes a positioning frame 61 having an outer side portion disposed on the liquid inlet/outlet tank opening, an inner side portion positioned and connected to the interface section for defining a relative position between the interface section and the liquid inlet/outlet tank opening, and a sealing ring 62 disposed above the positioning frame and surrounding the interface section and abutting against the lower surface of the tank cover. The setting of above-mentioned structure both can realize the effective simple and easy spiro union between cover one and the jar mouth, can guarantee again not following the sealing washer between rotatory interface section and the pivoted cover one, and cover one pushes up on the sealing washer promptly after screwing. The positioning frame is used for fixing the interface section and ensuring that the lower end of the inclined pipe section is located in the lowest position area in the tank body.
Example three:
different from the above embodiment, the positioning frame is a circle of or uniformly distributed multi-section stand 63 fixedly arranged in the liquid inlet/outlet port, the positioning frame is arranged on the stand, and a locking structure for limiting the relative position between the positioning frame and the stand is arranged between the positioning frame and the stand.
The structure of locking is including locating on the stand and at least upper end and towards the open accepting groove 64 in one side at jar mouth center, locate on the locating rack outer edge with accept groove adaptation scarf joint piece 65. Two receiving grooves with one large width and one small width are at least arranged on the stand, and two scarf blocks with one large width and one small width are correspondingly at least arranged on the outer edge of the positioning frame.
The locating rack is connected the position of interface section has the caulking groove 611 in cloth, be equipped with on the interface section with the abaculus 612 of caulking groove adaptation, the interface section is equipped with round holding ring 67 outward, the sealing washer is located on the holding ring top surface, the abaculus is located on the holding ring bottom surface. Can carry out fixed point location to the feed liquor pipe through the setting of above-mentioned structure to the orientation, guarantee that the pipe chute section is installed fast and targets in place, also be difficult for colliding between the part, if accept the groove and the scarf joint piece mismatch also will lead to the cover can not install completely and target in place, also can remind assembly personnel. The matching of the positioning frame and the tank opening is used for positioning the positioning frame. The positioning frame and the interface section can be directly fixedly connected, and can also be positioned and combined as above, so long as the position of the inclined pipe section relative to the inner cavity of the tank body is ensured to be fixed.
Example four:
the difference of the embodiment is that the first tank cover is screwed with the liquid inlet and outlet tank opening. And a second tank cover 21 is arranged on the inlet and outlet tank opening, and the air inlet pipe is arranged on the second tank cover in a penetrating manner.
Example five:
different from the above embodiment, a pipe cover 7 is screwed on the upper end of the part of the interface section extending out of the tank cover, and a valve structure is arranged on the interface section between the pipe cover and the tank cover, the valve structure comprises a valve sleeve 08 screwed in the interface section, a circle of liquid blocking ring 81 arranged on the valve sleeve, a valve block 82 arranged above the liquid blocking ring and provided with a valve hemisphere 821 at the lower end capable of plugging a central hole of the liquid blocking ring, and a valve rod 83 which sequentially penetrates through the pipe wall of the interface section and the valve sleeve and is inserted into the valve block and used for controlling the valve block to lift up and down.
The valve rod stretches into the front end of valve barrel has the bulb, it holds to open on the valve block valve stem male valve groove 801, the valve groove have for the top with the slope cell wall that the bulb offseted and vertical cross-section is triangle-shaped's triangular groove, valve block bottom with keep off being equipped with between the liquid circle and locate the outer spring 84 of valve hemisphere, at least the top of valve block be equipped with the round with interface section internal orifice looks adaptation and the middle part have the inclined ring 822 that prevents that the empty play liquid clearance of basket, be located in the valve barrel valve block top is equipped with spacing portion 85, the valve block with one side that the valve rod is relative extremely be equipped with logical liquid passageway 86 between the valve barrel inner wall. The valve block is also provided with a liquid through channel which is communicated up and down, and the liquid through channel can be round, square or in any other shape, so that the fluid can pass through the channel most easily. And a guide groove 87 and a guide rod 88 which are matched with each other are also arranged between the valve sleeve and the valve block.
The liquid inlet and the liquid outlet can be stably and efficiently controlled through the arrangement of the valve structure, and due to the particularity of the refrigerant, the arrangement of the pipe cover ensures that air is not introduced into the refrigerant as far as possible, and the air cannot be delivered to a circulating system along with output. The intake pipe wears to locate on the cover two, also can set up the valve structure the same with this application in the intake pipe, also can set up other valve structures on the existing market.
The present application is not limited to the above-mentioned combination of the valve rod and the valve block, and any other structure that can realize the extension or rotation of the rotary valve rod to realize the lifting of the valve block can be applied to the present application.
This application can gather the refrigerant to the low-order angle through the clear liquid end of slope when refrigerant discharge and jar interior liquid reduces gradually, then locate the setting of the pipe section of sloping on the low-order angle through the location and thereby can realize that the refrigerant discharges as far as possible the refrigerant jar, the high-usage of refrigerant has reduced the purchase cost. In order to ensure the operability and the easy operability of the tank openings, the gas inlet and outlet and the liquid inlet and outlet are respectively operated from the two tank openings. Therefore, the mutual interference is less when the device is used, and the controllability is strong.
Claims (10)
1. The utility model provides a refrigerant storage tank, includes jar body (1) and jar mouth, its characterized in that: be equipped with two jar mouths on the jar body, be respectively for business turn over gas pitcher mouth (2) that are used for through intake pipe (4) and business turn over liquid jar mouth (3) that are used for through feed liquor pipe (5), jar body bottom is at the bottom of the clear liquid that the slope of one side height was low sets up (11), the feed liquor pipe is including the edge that is located upper portion the jar mouth axial is established interface section immediately with connect in interface section (41) lower extreme and to oblique pipe section (42) to the extension of the most bottom position prescription at the bottom of the clear liquid, be equipped with cover (31) on the business turn over liquid jar mouth, wear out interface section upper end the cover one, the interface section with connect through location seal structure between business turn over gas pitcher mouth and the cover one.
2. The refrigerant storage tank as claimed in claim 1, wherein: the lower end of the inclined pipe section extends to the bottommost end of the clear liquid and is correspondingly connected with the bottom end of the tank body on a corner between the inner side walls of the tank body, and the inclined pipe section and the inner side walls of the tank body are provided with a liquid inlet gap between the bottom end of the clear liquid and the bottom end of the tank body.
3. The refrigerant storage tank as claimed in claim 1, wherein: the positioning and sealing structure comprises an outer side part arranged on the liquid inlet and outlet tank opening, an inner side part positioned and connected with the interface section and used for limiting the position frame (61) of the relative position of the interface section and the liquid inlet and outlet tank opening, and a sealing ring (62) arranged above the position frame and surrounding the interface section and abutting against the lower surface of the tank cover.
4. The refrigerant storage tank as claimed in claim 3, wherein: the locating rack is a circle of or uniformly distributed multi-section stand (63) fixedly arranged in the liquid inlet and outlet port, the locating rack is erected on the stand, and a locking structure used for limiting the relative position between the locating rack and the stand is arranged between the locating rack and the stand.
5. The refrigerant storage tank as claimed in claim 4, wherein: the structure of locking is including locating on the pallet and at least upper end and towards the open accepting groove (64) in one side at jar mouth center, locate on the locating rack outer edge with accept groove adaptation scarf joint piece (65).
6. The refrigerant storage tank as claimed in claim 5, wherein: two receiving grooves with one large width and one small width are at least arranged on the stand, and two scarf blocks with one large width and one small width are correspondingly at least arranged on the outer edge of the positioning frame.
7. The refrigerant storage tank as claimed in claim 4, wherein: the locating rack is connected caulking groove (611) have been arranged in the position of interface section, be equipped with on the interface section with abaculus (612) of caulking groove adaptation, the interface section is equipped with round holding ring (67) outward, the sealing washer is located on the holding ring top surface, the abaculus is located on the holding ring bottom surface.
8. The refrigerant storage tank as claimed in claim 7, wherein: the first tank cover is in threaded connection with the liquid inlet and outlet tank opening, a second tank cover (21) is arranged on the gas inlet and outlet tank opening, and the gas inlet pipe penetrates through the second tank cover.
9. The refrigerant storage tank as claimed in claim 1, wherein: the interface section stretches out the upper end spiro union of the part of cover one has tube cap (7), just be located in on the interface section be equipped with valve structure between tube cap and the cover one, valve structure including the spiro union in valve barrel (08) in the interface section is located the round of valve barrel keeps off liquid circle (81), is located keep off liquid circle top and lower extreme have valve block (82) that can fill up and block up the valve hemisphere (821) that keeps off the liquid circle centre bore, pass in proper order the pipe wall of interface section with the valve barrel inserts valve rod (83) that are used for the upper and lower lift of control valve block in the valve block.
10. The refrigerant storage tank as claimed in claim 9, wherein: the front end of the valve rod extending into the valve sleeve is provided with a ball head, the valve block is provided with a valve groove (801) for inserting the valve rod, the valve groove is a triangular groove which has an inclined groove wall abutting against the ball head at the top and has a triangular vertical section, a spring (84) sleeved outside the valve hemisphere is arranged between the bottom of the valve block and the liquid blocking ring, at least the top of the valve block is provided with a circle of anti-deviation ring (822) which is matched with the inner opening of the valve sleeve and the middle of which is provided with a basket empty liquid outlet gap, a limiting part (85) is arranged above the valve block in the valve sleeve, a liquid passage (86) is arranged between one side of the valve block opposite to the valve rod and the inner wall of the valve sleeve, the valve block is also provided with a liquid through channel which is communicated up and down, and a guide groove (87) and a guide rod (88) which are matched with each other are also arranged between the valve sleeve and the valve block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822262381.7U CN209819944U (en) | 2018-12-30 | 2018-12-30 | Refrigerant storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822262381.7U CN209819944U (en) | 2018-12-30 | 2018-12-30 | Refrigerant storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209819944U true CN209819944U (en) | 2019-12-20 |
Family
ID=68870343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822262381.7U Active CN209819944U (en) | 2018-12-30 | 2018-12-30 | Refrigerant storage tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209819944U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654772A (en) * | 2018-12-30 | 2019-04-19 | 浙江佳中智能家居科技有限公司 | A kind of coolant storage tank |
-
2018
- 2018-12-30 CN CN201822262381.7U patent/CN209819944U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654772A (en) * | 2018-12-30 | 2019-04-19 | 浙江佳中智能家居科技有限公司 | A kind of coolant storage tank |
| CN109654772B (en) * | 2018-12-30 | 2024-04-05 | 浙江星光电科智能家居科技有限公司 | Refrigerant storage tank |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209819944U (en) | Refrigerant storage tank | |
| CN107716973A (en) | Drilling equipment with cooler | |
| US4846214A (en) | Fluid additive injector | |
| CN109654772B (en) | Refrigerant storage tank | |
| CN113198634A (en) | Double-gas automatic adjustable atomizing nozzle | |
| CN219879508U (en) | Tail gas absorbing device | |
| CN206012028U (en) | A kind of ink feeding system of engineering blueprint printer | |
| CN206568714U (en) | Liquid-jet device and printing device | |
| CN207539393U (en) | A kind of combination valve used in suitable gas pipeline | |
| CN215930209U (en) | Economical gas-liquid separation device and economizer | |
| CN202280898U (en) | Gate valve | |
| CN210882643U (en) | Pond water quality regulation and control system based on unmanned aerial vehicle | |
| CN103111384B (en) | For making the blackwash sprayer of patch stone | |
| CN208858503U (en) | For conveying the hydraulic end of plunger pump containing gas medium | |
| CN206002278U (en) | A kind of flutter wind tunnel model protector flowed based on liquid | |
| CN208557175U (en) | Plate cutting Water Cutting device | |
| CN205859450U (en) | Field irrigation pull-type threeway waterworks | |
| CN207318171U (en) | A kind of water quality Autosampler | |
| CN110282227A (en) | A kind of backward flow type dosing container | |
| CN207122596U (en) | A kind of kitchen faucet | |
| CN220117355U (en) | High-efficient spinning formula fire hydrant | |
| CN220143734U (en) | Spray gun head and spray gun | |
| US2770502A (en) | Remote control faucet | |
| CN114847129B (en) | Layered irrigation spray head with remixing function | |
| CN207229732U (en) | A kind of pressure vessel for adding pipe flushing function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |