CN217078964U - Negative pressure eliminating device for secondary water supply - Google Patents
Negative pressure eliminating device for secondary water supply Download PDFInfo
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- CN217078964U CN217078964U CN202220999897.3U CN202220999897U CN217078964U CN 217078964 U CN217078964 U CN 217078964U CN 202220999897 U CN202220999897 U CN 202220999897U CN 217078964 U CN217078964 U CN 217078964U
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- tank body
- vacuum
- vacuum eliminator
- eliminator main
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Abstract
The utility model discloses a negative pressure eliminating device for secondary water supply, which relates to the technical field of negative pressure elimination for secondary water supply and comprises a tank body, a working unit and an installation unit; the tank body is horizontally and transversely arranged in a cylindrical shape; the working unit comprises a water inlet pipe, a standby interface, a water shortage protection device, supporting legs, a water outlet pipe and a vacuum eliminator main body, wherein the upper ends of the supporting legs are fixedly connected to four corners of the lower side of the tank body, and the vacuum eliminator main body is arranged at the right end of the upper side of the tank body; the installation unit is installed at the lower end of the vacuum eliminator main body and the upper right end of the tank body. Be equipped with the installation element and install vacuum eliminator on jar body, the convenience is maintained and is changed vacuum eliminator, and is equipped with the filter screen and blocks the dust in the air, reduces the possibility that causes the pollution to inside quality of water, still is equipped with the sealing washer in addition and strengthens being connected of vacuum eliminator and jar body, still is equipped with blow off pipe and sealed lid, can carry out the clearance of more details to jar internal portion.
Description
Technical Field
The utility model relates to a negative pressure technical field is eliminated in the secondary water supply, specifically is a negative pressure device is eliminated in secondary water supply.
Background
The non-negative pressure water supply system has the advantages of low investment, high automation degree, complete protection functions, reliable operation, simple and convenient operation, obvious water and electricity saving effect, no secondary pollution to water quality, excellent cost performance of the non-negative pressure water supply system, incomparable performance of any other water supply equipment, and ideal non-negative pressure water supply system for replacing a water tower, a high-level water tank and a tower-free water feeder;
a secondary water supply negative pressure eliminating device disclosed in the patent with the publication number of CN210342098U in the prior art relates to the technical field of water supply appliances; the bottom of the tank body is fixedly provided with a base, the upper end of the tank body is provided with a water inlet pipe, the water inlet pipe is fixedly provided with a water inlet flange, the upper side wall of the tank body is fixedly provided with a lifting lug, the middle part of the upper end of the tank body is provided with a spare interface, the right upper end of the tank body is fixedly provided with a lower respiration type vacuum suppressor, the left lower side of the tank body is provided with an installation opening, the installation opening is fixedly provided with a water shortage protection device, the bottom of the tank body is fixedly provided with a water outlet pipe and a sewage discharge pipe, the water outlet pipe is fixedly provided with a water outlet flange, and the sewage discharge pipe is fixedly provided with a sewage discharge flange;
its vacuum eliminator snap-on is on jar body, and is inconvenient to maintain and change vacuum eliminator, and does not set up the dust that the filter screen blockked in the air, causes the pollution to the quality of water of inside easily, only is equipped with the blow off pipe in addition, can not carry out the clearance of more details to jar internal portion, for this reason, we propose a secondary water supply and eliminate negative pressure device.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is overcome current defect, a negative pressure device is eliminated in secondary water supply is provided, it installs vacuum eliminator on the jar body to be equipped with the installation element, the convenience is maintained and is changed vacuum eliminator, and be equipped with the filter screen and block the dust in the air, reduce the possibility that causes the pollution to inside quality of water, still be equipped with the sealing washer in addition and strengthen being connected of vacuum eliminator and jar body, still be equipped with blow off pipe and sealed lid, can carry out the clearance of more detail to jar internal portion, can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: a negative pressure eliminating device for secondary water supply comprises a tank body, a working unit and a mounting unit;
a tank body: is horizontally and transversely arranged in a cylinder shape;
a working unit: the vacuum water-saving tank comprises a water inlet pipe, a standby interface, a water shortage protection device, supporting legs, a water outlet pipe and a vacuum eliminator main body, wherein the left side of the middle part of the upper side of the tank body is fixedly connected with the lower end of the water inlet pipe, the middle part of the upper side of the tank body is fixedly connected with the lower end of the standby interface, the left side of the middle part of the lower side of the tank body is fixedly connected with the upper end of the water shortage protection device, the middle part of the lower side of the tank body is fixedly connected with the upper end of the water outlet pipe, the four corners of the lower side of the tank body are fixedly connected with the upper ends of the supporting legs, and the right end of the upper side of the tank body is provided with the vacuum eliminator main body;
an installation unit: is arranged at the lower end of the vacuum eliminator main body and the upper right end of the tank body.
Support whole equipment through a jar body, support a jar body through the landing leg, through advancing water piping connection outside water source, and flow into jar internal with the water source, prevent through reserve interface that the inlet tube from damaging the back influence equipment use, derive jar water source of internal portion through the outlet pipe, detect and transmit signal through lack of water protection device to inside water level, eliminate jar negative pressure of internal portion through the vacuum eliminator main part, install the vacuum eliminator main part on jar body through the installation element.
Further, the installation unit contains mount pad, telescopic link, spring, card ball, draw-in groove, reinforcement subassembly and filter screen subassembly, the lower extreme of the upside right-hand member fixedly connected with mount pad of the jar body, and the inboard middle part downside of mount pad etc. angle seted up the draw-in groove, the inner of angle fixedly connected with telescopic link such as the lower extreme outside of vacuum eliminator main part, and the outer end fixedly connected with card ball of telescopic link, the spring cup joints on the telescopic link, card ball and draw-in groove joint, reinforcement unit mount is both sides around the mount pad, and the filter screen unit mount is inside the middle part upside of vacuum eliminator main part.
Support the card ball through the telescopic link, during the installation vacuum eliminator main part, with vacuum eliminator main part lower extreme contact mount pad and downstream, telescopic link and spring shorten, the card ball slides in the mount pad, after the card ball slides the draw-in groove, telescopic link and spring kick-back will block in the ball joint arrives the draw-in groove, thereby fix the vacuum eliminator main part in the mount pad, strengthen the fixed of vacuum eliminator main part through the reinforcement subassembly, through the impurity in the filter screen subassembly filtered air, reduce the possibility of polluting inside water source.
Further, consolidate the subassembly and contain slide rail, straining spring, slider, fixed axle, jack catch and claw groove, the inner of both sides fixedly connected with slide rail around the mount pad, and slider and slide rail sliding connection, the upper end of the taut spring of lower extreme fixedly connected with of slider, and the lower extreme fixed connection of taut spring is in the inside bottom of slide rail, the outer end fixedly connected with fixed axle of slider, and the lower extreme of jack catch rotates with the fixed axle to be connected, the claw groove has been seted up to both sides around the upper end of vacuum eliminator main part, and the upper end and the claw groove joint of jack catch.
Support the jack catch through the fixed axle, fix the back in the mount pad with vacuum eliminator main part, along slide rail gliding slider that makes progress, the slider drives jack catch rebound, taut spring extension, swing jack catch with the jack catch joint in the claw groove, loosen the jack catch, the pulling force that taut spring kick-backed makes the jack catch inseparabler with the joint in claw groove to strengthen the fixed of vacuum eliminator main part.
Further, the filter screen subassembly contains standing groove, filter screen, arc, fixture block and cassette, the standing groove has been seted up to the inside of the middle part upside of vacuum eliminator main part, and filter screen and standing groove joint, the middle part upside front side of vacuum eliminator main part is rotated with the front end of arc and is connected, and the arc corresponds with the standing groove, the rear end fixedly connected with fixture block of arc, the middle part upside rear side fixedly connected with cassette of vacuum eliminator main part, and fixture block and cassette joint.
Support the filter screen through the standing groove, support the fixture block through the arc, when needs installation filter screen, break away from the cassette with the fixture block, the swing arc is placed the filter screen in the standing groove, returns the pendulum arc, with the fixture block joint in the cassette to fix the filter screen in the vacuum eliminator main part, through the impurity in the filter screen filtered air, reduce the possibility of polluting the inside water source.
Further, the mounting unit still contains the sealing washer, the inside middle part of mount pad is equipped with the sealing washer, and the sealing washer corresponds with the lower extreme of vacuum eliminator main part. The connection between the vacuum eliminator main body and the tank body is strengthened through the sealing ring.
Further, still include drain, sealed lid, runner, sealed pad and seal receptacle, the upper end of the downside middle part right side fixedly connected with drain of the jar body, the outside of the inside fixedly connected with seal receptacle of the right-hand member of the jar body, and the right-hand member of seal receptacle and the left end contact of sealed pad, the right-hand member of sealed pad contacts with the left end of sealed lid, and the outside of sealed lid and the inside threaded connection of the right-hand member of the jar body, the right-hand member middle part fixedly connected with runner of sealed lid.
Through sealed lid support runner, when needs carefully clear up jar internal portion, thereby rotate the runner and make sealed lid back-out jar body right-hand member take off sealed lid, and then expose jar internal portion, clear up the internal portion, through the sewage discharge that the drain will clear up, it is internal that the jar is precessed with sealed lid to the reverse rotation runner to keep jar body sealed, strengthen the leakproofness of sealed lid and jar body through sealed pad and seal receptacle.
Compared with the prior art, the beneficial effects of the utility model are that: this negative pressure device is eliminated in secondary water supply has following benefit:
1. the lower end of the vacuum eliminator main body is contacted with the mounting seat and moves downwards, the telescopic rod and the spring are shortened, the clamping ball slides into the mounting seat, and after the clamping ball slides to the clamping groove, the telescopic rod and the spring rebound to clamp the clamping ball into the clamping groove, so that the vacuum eliminator main body is fixed in the mounting seat;
2. the sliding block slides upwards along the sliding rail, the sliding block drives the clamping jaw to move upwards, the tensioning spring extends, the clamping jaw is clamped in the jaw groove by swinging the clamping jaw, the clamping jaw is loosened, and the clamping jaw is clamped with the jaw groove more tightly by the resilience tension of the tensioning spring;
3. be equipped with the installation element and install vacuum eliminator on jar body, the convenience is maintained and is changed vacuum eliminator, and is equipped with the filter screen and blocks the dust in the air, reduces the possibility that causes the pollution to inside quality of water, still is equipped with the sealing washer in addition and strengthens being connected of vacuum eliminator and jar body, still is equipped with blow off pipe and sealed lid, can carry out the clearance of more details to jar internal portion.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a partial enlarged structure at A in FIG. 1 according to the present invention;
fig. 3 is a schematic view of the rear view structure of the present invention.
In the figure: 1 tank body, 2 working units, 21 water inlet pipes, 22 standby interfaces, 23 water shortage protection devices, 24 supporting legs, 25 water outlet pipes, 26 vacuum eliminator main bodies, 3 mounting units, 31 mounting seats, 32 telescopic rods, 33 springs, 34 clamping balls, 35 clamping grooves, 36 sliding rails, 37 tensioning springs, 38 sliding blocks, 39 fixing shafts, 310 clamping claws, 311 claw grooves, 312 placing grooves, 313 filter screens, 314 arc-shaped plates, 315 clamping blocks, 316 clamping seats, 317 sealing rings, 4 sewage outlets, 5 sealing covers, 6 rotating wheels, 7 sealing gaskets and 8 sealing seats.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present embodiment provides a technical solution: a secondary water supply negative pressure eliminating device comprises a tank body 1, a working unit 2 and a mounting unit 3;
1, tank body: horizontally and transversely placed in a cylinder shape;
the working unit 2: the vacuum water-saving tank comprises a water inlet pipe 21, a standby interface 22, a water shortage protection device 23, supporting legs 24, a water outlet pipe 25 and a vacuum eliminator main body 26, wherein the left side of the middle of the upper side of a tank body 1 is fixedly connected with the lower end of the water inlet pipe 21, the middle of the upper side of the tank body 1 is fixedly connected with the lower end of the standby interface 22, the left side of the middle of the lower side of the tank body 1 is fixedly connected with the upper end of the water shortage protection device 23, the middle of the lower side of the tank body 1 is fixedly connected with the upper end of the water outlet pipe 25, four corners of the lower side of the tank body 1 are fixedly connected with the upper ends of the supporting legs 24, and the right end of the upper side of the tank body 1 is provided with the vacuum eliminator main body 26;
the mounting unit 3: is installed at the lower end of the vacuum eliminator main body 26 and the upper right end of the tank body 1; installation element 3 contains mount pad 31, telescopic link 32, spring 33, card ball 34, draw-in groove 35, consolidate subassembly and filter screen subassembly, jar body 1's upside right-hand member fixedly connected with mount pad 31's lower extreme, and the inboard middle part downside of mount pad 31 waits the angle to have seted up draw-in groove 35, angle fixedly connected with telescopic link 32's such as the lower extreme outside of vacuum eliminator main part 26 inner, and telescopic link 32's outer end fixedly connected with card ball 34, spring 33 cup joints on telescopic link 32, card ball 34 and draw-in groove 35 joint, consolidate the unit mount in the front and back both sides of mount pad 31, and filter screen unit mount is inside the middle part upside of vacuum eliminator main part 26.
The reinforcing component comprises a slide rail 36, a tension spring 37, a slide block 38, a fixed shaft 39, a claw 310 and a claw groove 311, the inner ends of the slide rail 36 are fixedly connected with the front side and the rear side of the mounting seat 31, the slide block 38 is slidably connected with the slide rail 36, the upper end of the tension spring 37 is fixedly connected with the lower end of the slide block 38, the lower end of the tension spring 37 is fixedly connected with the bottom end of the slide rail 36, the fixed shaft 39 is fixedly connected with the outer end of the slide block 38, the lower end of the claw 310 is rotatably connected with the fixed shaft 39, the claw groove 311 is formed in the front side and the rear side of the upper end of the vacuum eliminator main body 26, and the upper end of the claw 310 is clamped with the claw groove 311.
The clamping jaws 310 are supported by the fixed shaft 39, after the vacuum eliminator main body 26 is fixed in the mounting seat 31, the sliding block 38 slides upwards along the sliding rail 36, the sliding block 38 drives the clamping jaws 310 to move upwards, the tensioning spring 37 extends, the clamping jaws 310 are clamped in the jaw slots 311 by swinging the clamping jaws 310, the clamping jaws 310 are released, and the clamping jaws 310 are clamped with the jaw slots 311 more tightly by the resilience tension of the tensioning spring 37, so that the fixation of the vacuum eliminator main body 26 is enhanced.
The filter screen subassembly contains standing groove 312, filter screen 313, arc 314, fixture block 315 and cassette 316, standing groove 312 has been seted up to the inside of the middle part upside of vacuum eliminator main part 26, and filter screen 313 and standing groove 312 joint, the middle part upside front side of vacuum eliminator main part 26 rotates with the front end of arc 314 to be connected, and arc 314 corresponds with standing groove 312, the rear end fixedly connected with fixture block 315 of arc 314, the middle part upper side rear side fixedly connected with cassette 316 of vacuum eliminator main part 26, and fixture block 315 and cassette 316 joint.
The mounting unit 3 further includes a sealing ring 317, the sealing ring 317 is disposed at the middle portion of the inside of the mounting seat 31, and the sealing ring 317 corresponds to the lower end of the vacuum eliminator main body 26. The connection of the vacuum interrupter body 26 to the canister 1 is reinforced by a sealing ring 317.
Support whole equipment through jar body 1, support jar body 1 through landing leg 24, connect outside water source through inlet tube 21 to flow into jar body 1 with the water source in, prevent through reserve interface 22 that the inlet tube 21 from damaging the back influence equipment use, derive the inside water source of jar body 1 through outlet pipe 25, detect and transmit signal the inside water level through lack of water protection device 23, eliminate jar the inside negative pressure of body 1 through vacuum eliminator main part 26, install vacuum eliminator main part 26 on jar body 1 through installation element 3.
Still include drain 4, sealed lid 5, runner 6, sealed pad 7 and seal receptacle 8, the upper end of the downside middle part right side fixedly connected with drain 4 of the jar body 1, the outside of the inside fixedly connected with seal receptacle 8 of the right-hand member of the jar body 1, and the right-hand member of seal receptacle 8 and the left end contact of sealed pad 7, the right-hand member of sealed pad 7 and the left end contact of sealed lid 5, and the outside of sealed lid 5 and the right-hand member internal thread of the jar body 1 are connected, the right-hand member middle part fixedly connected with runner 6 of sealed lid 5.
Support runner 6 through sealed lid 5, when needs carefully clear up the internal portion of jar, thereby rotate runner 6 and make sealed lid 5 back-out jar body 1 right-hand member take off sealed lid 5, and then expose the internal portion of jar, clear up the internal portion, through the sewage discharge of drain 4 with the clearance, reverse rotation runner 6 is with sealed lid 5 back-spin jar internal 1 in, thereby it is sealed to keep jar body 1, strengthen sealed lid 5 and jar body 1 leakproofness through sealed 7 of filling up and seal receptacle 8.
The utility model provides a pair of negative pressure device is eliminated in secondary water supply's theory of operation as follows: firstly, a vacuum eliminator main body 26 is installed, the lower end of the vacuum eliminator main body 26 is contacted with an installation seat 31 and moves downwards, an expansion link 32 and a spring 33 are shortened, a clamping ball 34 slides into the installation seat 31, after the clamping ball 34 slides to a clamping groove 35, the expansion link 32 and the spring 33 rebound to clamp the clamping ball 34 into the clamping groove 35, so that the vacuum eliminator main body 26 is fixed in the installation seat 31, the connection between the vacuum eliminator main body 26 and a tank body 1 is enhanced through a sealing ring 317, a clamping block 315 is separated from the clamping seat 316, a clamping block 315 is swung, an arc-shaped plate 314 is placed in a placing groove 312, the arc-shaped plate 314 is swung back, the clamping block 315 is clamped in the clamping seat 316, so that the clamping block 313 is fixed in the vacuum eliminator main body 26, impurities in air are filtered through the filtering screen 313, the possibility of polluting an internal water source is reduced, a sliding block 38 upwards slides along a sliding rail 36, the clamping block 310 is driven by the sliding block 38, and the clamping jaw 310 moves upwards, and a tensioning spring 37 extends, swing jack catch 310 with jack catch 310 joint in claw groove 311, loosen jack catch 310, the pulling force of straining spring 37 resilience makes jack catch 310 and claw groove 311 joint inseparabler, thereby strengthen the fixed of vacuum eliminator main part 26, connect outside water source through inlet tube 21, and flow into jar body 1 with the water source, prevent that inlet tube 21 from damaging the back and influencing equipment use through reserve interface 22, derive the water source of jar body 1 inside through outlet pipe 25, detect and transmit the signal through lack of water protection device 23 internal water level, eliminate the inside negative pressure of jar body 1 through vacuum eliminator main part 26, when needing to carefully clear up the jar body 1 inside, rotate runner 6 and make sealed lid 5 unscrew jar body 1 right-hand member and take off sealed lid 5, and then expose jar body 1 inside, clear up the inside, discharge the sewage of clearing up through drain 4, reverse rotation runner 6 will be screwed into jar body 1, thereby keeping the can body 1 sealed and enhancing the sealing performance of the sealing cover 5 and the can body 1 through the sealing gasket 7 and the sealing seat 8.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a negative pressure device is eliminated in secondary water supply which characterized in that: comprises a tank body (1), a working unit (2) and a mounting unit (3);
tank (1): is horizontally and transversely arranged in a cylinder shape;
working unit (2): the vacuum water-saving tank comprises a water inlet pipe (21), a standby interface (22), a water shortage protection device (23), support legs (24), a water outlet pipe (25) and a vacuum eliminator main body (26), wherein the lower end of the water inlet pipe (21) is fixedly connected to the left side of the middle of the upper side of the tank body (1), the lower end of the standby interface (22) is fixedly connected to the middle of the upper side of the tank body (1), the upper end of the water shortage protection device (23) is fixedly connected to the left side of the middle of the lower side of the tank body (1), the upper end of the water outlet pipe (25) is fixedly connected to the middle of the lower side of the tank body (1), the upper ends of the support legs (24) are fixedly connected to four corners of the lower side of the tank body (1), and the vacuum eliminator main body (26) is arranged at the right end of the upper side of the tank body (1);
mounting unit (3): is arranged at the lower end of the vacuum eliminator main body (26) and the upper right end of the tank body (1).
2. The negative pressure eliminating device for secondary water supply according to claim 1, wherein: installation unit (3) contain mount pad (31), telescopic link (32), spring (33), card ball (34), draw-in groove (35), reinforcement subassembly and filter screen subassembly, the lower extreme of upside right-hand member fixedly connected with mount pad (31) of the jar body (1), and the inboard middle part downside of mount pad (31) etc. angle seted up draw-in groove (35), the inner of angle fixedly connected with telescopic link (32) such as the lower extreme outside of vacuum eliminator main part (26), and the outer end fixedly connected with card ball (34) of telescopic link (32), spring (33) cup joint on telescopic link (32), card ball (34) and draw-in groove (35) joint, reinforcement unit installs both sides around mount pad (31), and inside the middle part upside of filter screen unit mount in vacuum eliminator main part (26).
3. The negative pressure eliminating device for secondary water supply according to claim 2, wherein: the utility model discloses a vacuum eliminator, including reinforcing component, mount pad (31), slider (38), fixed axle (39), jack catch (310), claw groove (311), the inner of both sides fixedly connected with slide rail (36) around mount pad (31), and slider (38) and slide rail (36) sliding connection, the upper end of the lower extreme fixedly connected with tensioning spring (37) of slider (38), and the lower extreme fixed connection of tensioning spring (37) is in the inside bottom of slide rail (36), the outer end fixedly connected with fixed axle (39) of slider (38), and the lower extreme and the fixed axle (39) of jack catch (310) rotate and be connected, claw groove (311) have been seted up to both sides around the upper end of vacuum eliminator main part (26), and the upper end and the claw groove (311) joint of jack catch (310).
4. The negative pressure eliminating device for secondary water supply according to claim 2, wherein: the filter screen assembly comprises a placing groove (312), a filter screen (313), an arc-shaped plate (314), a clamping block (315) and a clamping seat (316), wherein the placing groove (312) is formed in the upper side of the middle of the vacuum eliminator main body (26), the filter screen (313) is clamped with the placing groove (312), the front side of the upper side of the middle of the vacuum eliminator main body (26) is rotatably connected with the front end of the arc-shaped plate (314), the arc-shaped plate (314) corresponds to the placing groove (312), the clamping block (315) is fixedly connected with the rear end of the arc-shaped plate (314), the clamping seat (316) is fixedly connected with the rear side of the upper side of the middle of the vacuum eliminator main body (26), and the clamping block (315) is clamped with the clamping seat (316).
5. The negative pressure eliminating device for secondary water supply according to claim 2, wherein: the mounting unit (3) further comprises a sealing ring (317), the middle part of the interior of the mounting seat (31) is provided with the sealing ring (317), and the sealing ring (317) corresponds to the lower end of the vacuum eliminator main body (26).
6. The negative pressure eliminating device for secondary water supply according to claim 1, wherein: still include drain (4), sealed lid (5), runner (6), sealed pad (7) and seal receptacle (8), the upper end of the downside middle part right side fixedly connected with drain (4) of the jar body (1), the outside of the inside fixedly connected with seal receptacle (8) of the right-hand member of the jar body (1), and the right-hand member of seal receptacle (8) and the left end contact of sealed pad (7), the right-hand member of sealed pad (7) and the left end contact of sealed lid (5), and the outside of sealed lid (5) and the right-hand member internal thread connection of the jar body (1), the right-hand member middle part fixedly connected with runner (6) of sealed lid (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220999897.3U CN217078964U (en) | 2022-04-28 | 2022-04-28 | Negative pressure eliminating device for secondary water supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220999897.3U CN217078964U (en) | 2022-04-28 | 2022-04-28 | Negative pressure eliminating device for secondary water supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217078964U true CN217078964U (en) | 2022-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220999897.3U Active CN217078964U (en) | 2022-04-28 | 2022-04-28 | Negative pressure eliminating device for secondary water supply |
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| Country | Link |
|---|---|
| CN (1) | CN217078964U (en) |
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2022
- 2022-04-28 CN CN202220999897.3U patent/CN217078964U/en active Active
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