CN204898808U - Prevent controlling means of excessive feedwater - Google Patents
Prevent controlling means of excessive feedwater Download PDFInfo
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- CN204898808U CN204898808U CN201520493221.7U CN201520493221U CN204898808U CN 204898808 U CN204898808 U CN 204898808U CN 201520493221 U CN201520493221 U CN 201520493221U CN 204898808 U CN204898808 U CN 204898808U
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- sealing
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Abstract
The utility model discloses a prevent controlling means of excessive feedwater, including the body that is equipped with water inlet and delivery port, still internal and arrange the impeller on same axis in proper order including setting up at this, planetary gear reducer mechanism and sealed control handwheel, sealed control handwheel drives a ball sealer and opens or seal the delivery port, the impeller receives the water impact that comes from the water inlet and transmission rotatory and through this planetary gear reducer mechanism drives and to rotate by sealed control handwheel, should seal and stir this ball sealer removal when the control handwheel rotates, the sealed delivery port of living during position that this ball sealer removed the delivery port. The condition of the unable stagnant water of valve appears when controlling means low reaches, should sealed control handwheel rotate with continuouslying and stir the ball sealer and remove until sealed firmly delivery port, reach the purpose of stagnant water. This controlling means can accurate this sealed control handwheel of settlement rotation angle, guarantee just can close the delivery port at the beginning in excessive feedwater to the water economy resource, simple structure, the function is reliable, and the cost is low.
Description
Technical field
The utility model relates to a kind of control device preventing excessive feedwater.
Background technology
Existing toilet is when the water intaking valve tube connector in water tank breaks or water intaking valve lost efficacy or water tank occurs overflow time, water can to flow out and overflow enters the waste that toilet causes water resource from water intaking valve continuously, and What is more then directly can flow out water tank and cause washroom and housing floor to be flooded when water has little time overflow.For solving the problem, existing technology is adopt inside toilet, fill an alarm mostly, in time there is overflow, alarm can find to report to the police, or on the floor of washroom, fill a warning device, and when the water level on floor arrives certain altitude time, warning device sends warning.
Although alarm and warning device can give the alarm, just can start after needing to reach certain overflow water yield, the waste of water resource can be caused equally, and, once unmanned, even if give the alarm, also of no avail, cause the danger that house is impaired.In addition, warning device is electronic structure, higher to environmental requirement, complex structure, and cost is also higher.
Utility model content
The utility model provides the control device that a kind of structure is simple, can prevent excessive feedwater, which overcomes the deficiency existing for background technology.The utility model solves the technical scheme that its technical problem adopts:
A kind of control device preventing excessive feedwater, comprise the body being provided with water inlet and delivery port, also comprise and being arranged in this body and the impeller be arranged in successively on same axis, planetary gear reducing mechanism and sealing control wheel, described sealing control wheel drives a ball sealer to open or seal described delivery port, described impeller is subject to the water impact from water inlet and rotates and drive sealing control wheel to rotate by the transmission of this planetary gear reducing mechanism, stir sealing ball when sealing control wheel is rotated to move, sealing ball seals up described delivery port when moving to the position of described delivery port.
The flow of water and the rotational angle of sealing control wheel are proportional relationships, when there is valve in control device downstream cannot sealing, or pipeline breaking, or user's use water exceedes the situations such as predetermined water supply volume, sealing control wheel continues to rotate and stir ball sealer hydrodynamic reciprocating sealing residence to state delivery port, reaches the object of sealing.This control device accurately can set the anglec of rotation of sealing control wheel, thus ensure excessive feedwater can close at the very start and drop out the mouth of a river, thus saving water resource and avoid occurring that floor is by the danger of flooding, structure is simple, reliable in function.Impeller, planetary gear reducing mechanism, sealing control wheel are disposed coaxially in body and make whole apparatus structure very compact, can design very small and exquisite, not account for volume, and structure is simple, and cost is low.
Among one preferred embodiment: also comprise and be arranged on this intrinsic clutch, this clutch comprises clutch plate and elastic component, and this clutch plate is movably arranged between this planetary gear reducing mechanism and sealing control wheel and is also in transmission connection with this planetary gear reducing mechanism all the time; Under water flowing state, this clutch plate to move towards first direction by hydraulic pressure effect and is in transmission connection with sealing control wheel, and under obstructed water state, this clutch plate of this resilient element urges moves towards second direction and is separated with sealing control wheel; Sealing control wheel is connected with the torsion spring for driving it to reset to initial position.
When current flow through control device, drive clutch plate and sealing control wheel to be in transmission connection, water impact wheel rotation, sealing control wheel overcomes torsion spring torsion and starts to rotate, and drives ball sealer to move.When disposable continuous water feeding makes impeller turn over certain number of turns, now ball sealer is moved to water outlet, delivery port blocked by ball sealer, after this this clutch plate of resilient element urges moves towards second direction and is separated with sealing control wheel, and ball sealer continues to keep sealing state baffle seal control wheel to reset under the effect of hydraulic pressure thus stop feedwater realizing preventing the function of excessive feedwater, in the case, if need to remove the restriction stopping feedwater, as long as intrinsic hydraulic pressure is released, ball sealer loses the effect of hydraulic pressure, thus torsion spring twisting force lower seal control wheel drive ball sealer get back to initial position be on once fixing quantity prepare, if disposable continuous water feeding makes impeller not turn over the predetermined number of turns, namely when flow does not reach predetermined flow, after current are closed, this clutch plate of resilient element urges moves towards second direction and is separated with sealing control wheel, and initial position got back to by sealing control wheel automatic traction ball sealer under the torsion of torsion spring.Like this, just can ensure after being provided with clutch often subnormal cut off the water after (when namely disposable continuous water feeding does not arrive preset value), sealing control wheel under the twisting force of torsion spring can automatic traction ball sealer to get back to initial position be that next fixing quantity is prepared.
Among one preferred embodiment: this clutch also comprises a motion bar, this motion bar is connected with this clutch plate near one end of delivery port, and this motion bar is provided with a compression plate near one end of water inlet, and described compression plate is just arranged this water inlet.Compression plate area is comparatively large, is subject to hydraulic pressure active force comparatively large, is more prone to promote this clutch plate and moves.
Among one preferred embodiment: this body interior is provided with a upper chamber and a lower chamber, and described water inlet is positioned at upper chamber, and described delivery port is positioned at lower chamber; This impeller is arranged in this upper chamber; This planetary gear reducing mechanism, sealing control wheel, clutch plate, ball sealer are arranged in this lower chamber; This motion bar runs through this upper chamber and lower chamber.
Among one preferred embodiment: also comprise and be arranged on this and intrinsicly cross water body, this is crossed water body and covers this impeller, and this is crossed water body and is provided with water hole, and current enter this along water hole and to cross in water body and to impact impeller.Cross water body to cover this impeller and made to form a rotating drum in water body, current face the blade percussion of impeller along the water hole crossing water body thus effectively make impeller rotate in this rotating drum.
Among one preferred embodiment: the bottom of this clutch plate is provided with projection, sealing control wheel arranges some push rods equably along in its circumference, and when described projection moves to the gap between two push rods, clutch plate rotates can be with movable sealing control wheel to rotate.
Among one preferred embodiment: this body upper end is connected with upper cover, and this water inlet is arranged on this and covers; This body lower end is connected with lower cover, and this delivery port covers under being arranged on this.
Among one preferred embodiment: also comprise and be connected to bottom this lower cover or the flow regulation handle of this body sidewall, this flow regulation handle can circumference rotate, and this flow regulation handle has one and extend in this body for carrying out spacing limiting section to the initial position of sealing control wheel; Rotating this amount regulating handle drives this limiting section to move thus the initial position changing sealing control wheel.Accurately can change the water amount of control device so as required.
Among one preferred embodiment: also comprise the relief valve for being released by intrinsic water be arranged on this body.When disposable continuous water feeding exceedes preset value, only need open relief valve will now release by intrinsic water, make ball sealer no longer can get back to initial position under the drive of sealing control wheel by hydraulic pressure effect, simple to operation, reliable in function.
Among one preferred embodiment: described planetary gear reducing mechanism at least comprises primary speed-down mechanism, this reducing gear comprises gear and floating disc, the one side of this impeller opposed gear is provided with cam, and the middle part of this gear is provided with the mating holes inserted for the cam on this impeller; This pinion rotation drives this floating disc to rotate, and this floating disc rotates described in transmission and seals control wheel rotation, and the inner surface of this body is provided with the cooperating teeth with this gears meshing.Planetary gear reducing mechanism is simple and compact for structure, and volume is little, and transmission efficiency is high, and reduction range is wide.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 depicts a kind of perspective exploded view preventing the control device of excessive feedwater of the utility model.
Fig. 2 depicts the schematic perspective view of the body of control device shown in Fig. 1.
Fig. 3 depicts the schematic perspective view of the impeller of control device shown in Fig. 1.
Fig. 4 depicts the schematic perspective view of the elementary floating disc of control device shown in Fig. 1.
Fig. 5 depicts the schematic perspective view of the clutch plate of control device shown in Fig. 1.
Fig. 6 depicts the upward view of the lower cover of control device shown in Fig. 1.
Fig. 7 depicts the cross-sectional schematic of control device shown in Fig. 1.
Fig. 8 depicts the schematic diagram of control device shown in Fig. 1 when normal water inlet.
Fig. 9 depicts the schematic diagram of control device shown in Fig. 1 when cutting off current.
Figure 10 depicts the partial schematic sectional view of the relief valve of control device shown in Fig. 1.
Figure 11 depicts the partial schematic sectional view of the flow regulation handle of control device shown in Fig. 1.
Detailed description of the invention
Please refer to Fig. 1, Fig. 7, Figure 10, Figure 11, a kind of control device preventing excessive feedwater of the present utility model, comprises body 10, impeller 20, sealing control wheel 30, planetary gear reducing mechanism 40, ball sealer 50, clutch 60, crosses water body 70, flow regulation handle 80, relief valve 90.This body 10 upper end is connected with upper cover 12, and upper cover 12 is provided with water inlet 122.This body 10 lower end is connected with lower cover 14, and lower cover 14 is provided with delivery port 142, and sealing control wheel 30 drives ball sealer 50 to open or seal delivery port 142.This impeller 20, sealing control wheel 30, planetary gear reducing mechanism 40, clutch 60, excessively water body 70 are coaxially arranged in this body 10, because above-mentioned parts are set to be disposed coaxially in body 10, therefore whole apparatus structure is very compact, can design very small and exquisite, do not account for volume, structure is simple and cost is low.This flow regulation handle 80, relief valve 90 are arranged on this lower cover 14.
Please refer to Fig. 1, Fig. 2, Fig. 3, this body 10 inside is provided with upper chamber 16 and a lower chamber 18, and this upper cover 12 covers this upper chamber 16, and this lower cover 14 covers this lower chamber 18.The inner surface of this lower chamber 18 is provided with the cooperating teeth 11 be meshed with this planetary gear reducing mechanism 40.This impeller 20 and excessively water body 70 are housed in this upper chamber 16, the bottom of this impeller 20 is provided with cam 22, this is crossed water body 70 and covers this impeller 20, this is crossed water body 70 and is provided with water hole 72, current impact impeller 20 along water hole 72 makes impeller 20 rotate, the benefit arranging water body 70 and water hole 72 is, cross water body 70 to cover impeller 20 and made to form a rotating drum in water body 70, current face the blade percussion of impeller 20 along the water hole 72 crossing water body 70 thus effectively make impeller 20 rotate in this rotating drum.
Please refer to Fig. 1 to Fig. 4, described planetary gear reducing mechanism 40 is housed in this lower chamber 18, described planetary gear reducing mechanism 40 at least comprises primary speed-down mechanism, this reducing gear comprises gear and floating disc, the cam of this impeller 20 is arranged in the one side of opposed gear, and the middle part of this gear is provided with the mating holes inserted for the cam 22 on this impeller 20; This pinion rotation drives this floating disc to rotate, and seal control wheel 30 described in this floating disc rotation transmission and rotate, planetary gear reducing mechanism is techniques well known, does not just describe the principle of its decelerating operation here in detail.In the present embodiment, planetary gear reducing mechanism 40 to be described in detail its concrete structure to arrange three grades of reducing gears, specifically: this reducing gear comprises to be arranged and the primary pinion 41, elementary floating disc 42, intermediate gear 43, intermediate floating disc 44, final-stage gear 45, the final stage floating disc 46 that are in transmission connection successively from top to bottom successively, and above-mentioned each parts all offer through hole 47 in the axial direction and pass for current.The middle part of this primary pinion 41 is provided with the mating holes 412 inserted for the cam 22 on this impeller 20, realize impeller 20 coordinate with the transmission of primary pinion 41 by coordinating of cam 22 and mating holes 412, some through holes 414 are provided with at the circumferential interval of mating holes 412, the one side of elementary floating disc 42 opposing primary gear 41 is convex is provided with inserting column 424, and inserting column 424 inserts through hole 414 and realizes elementary floating disc 42 and coordinate with the transmission of primary pinion 41.The bottom of this elementary floating disc 42 is provided with cam 422, the middle part of this intermediate gear 43 is provided with the mating holes 432 that the cam 422 for this elementary floating disc 42 inserts, realize elementary floating disc 42 coordinate with the transmission of intermediate gear 43 by coordinating of cam 422 and mating holes 432, some through holes 434 are provided with at the circumferential interval of mating holes 432, the one side of middle rank floating disc 44 relatively intermediate gear 43 is convex is provided with inserting column 444, and inserting column 444 inserts through hole 434 and realizes intermediate floating disc 44 and coordinate with the transmission of intermediate gear 43.The structure of this intermediate floating disc 44 is the same with the structure of this elementary floating disc 42, is also provided with cam bottom it, and the cam that the middle part of this final-stage gear 45 is provided with for this intermediate floating disc 44 is inserted into mating holes 452.Be provided with some through holes 454 at the circumferential interval of mating holes 452, the one side of the relative final-stage gear 45 of final stage floating disc 46 is convex is provided with inserting column 464, and inserting column 464 inserts through hole 454 and realizes final stage floating disc 46 and coordinate with the transmission of final-stage gear 45.This primary pinion 41, this intermediate gear 43, this final-stage gear 45 engage with cooperating teeth 11 respectively, and this three-stage planetary gear reducing gear finally makes the rotation of impeller 20 be realized the purpose of this utility model by deceleration transmission step by step to sealing control wheel 30.
Please refer to Fig. 1 and Fig. 5, this clutch 60 comprises clutch plate 62, elastic component 64 and a motion bar 66.This motion bar 66 runs through this upper chamber 16, lower chamber 18, crosses water body 70, impeller 20, planetary gear reducing mechanism 40, this motion bar 66 is provided with a compression plate 68 near one end (top) of water inlet, described compression plate 68 is just arranged this water inlet 122, this compression plate 68 of the present embodiment matches with water inlet 122, water inlet 122 can be opened or closed under the effect of hydraulic pressure and elastic component 64, this clutch plate 62 is housed in this lower chamber 18, and this motion bar 66 is connected with this clutch plate 62 near one end (bottom) of delivery port.This elastic component 64 bullet withstands on this and crosses between water body 70 and compression plate 68, here, elastic component 64 also can withstand between the bottom of motion bar 66 and lower cover 14 by bullet, or elastic component 64 bullet withstands between clutch plate 62 and body 10, the installation site of elastic component 64 is unrestricted, as long as clutch 60 can be made to be separated with sealing control wheel 30 under the elastic force effect of elastic component 64 under obstructed water state, the present embodiment elastic component 64 adopts a stage clip, be understandable that, it can be also the elastomeric element such as extension spring, shell fragment, not as limit.This clutch plate 62 to be positioned at below this final stage floating disc 46 and all the time with this final stage floating disc 46 synchronous axial system and in the axial direction can this final stage floating disc 46 activity relative, specifically, final stage floating disc 46 is offered some through holes 462, the one side of the relative final stage floating disc 46 of clutch plate 62 is convex is provided with inserting column 624, inserting column 624 inserts through hole 462 and realizes the synchronous axial system of final stage floating disc 46 and clutch plate 62 and the two in the axial direction can the object of relative motion, structure is simple, coordinates reliable.The bottom of this clutch plate 62 is provided with projection 622.Sealing control wheel 30 to be housed in this lower chamber 18 and to be positioned at below this clutch plate 62, sealing control wheel 30 is along its circumference being arranged equably some push rods 32, when projection 622 moves to the gap between two push rods 32, clutch plate 62 rotates can be with movable sealing control wheel 30 to rotate.Specifically, under water flowing state, hydraulic pressure acts on compression plate 68, motion bar 66 drives clutch plate 62, and to first direction, (the present embodiment is water inlet direction, namely in downward direction) mobile, the projection 622 of this clutch plate 62 makes clutch plate 62 rotate can be with movable sealing control wheel 30 synchronous axial system with push rod 32 clamping in the circumferential.Under obstructed water state, this elastic component 64 promote this clutch plate 62 to second direction (the present embodiment for water inlet side in the opposite direction, i.e. upward direction) mobile, clutch plate 62 and sealing control wheel 30 are separated thus clutch plate 62 are rotated and cannot be with movable sealing control wheel 30 synchronous axial system.Sealing control wheel 30 is connected with the torsion spring 34 for driving it to reset to initial position, and torsion spring 34 is arranged on lower cover 14.Ball sealer 50 is arranged in this lower chamber 18, for sealing delivery port 142.Two adjacent push rods 32 of sealing control wheel 30 surround ball sealer 50, and sealing control wheel 30 can be stirred sealing ball 50 when rotating and be moved.
Please refer to Fig. 7 and 8, during water inlet, under water impact, impeller 20 drives planetary gear reducing mechanism 40 to rotate, planetary gear reducing mechanism 40 drives clutch plate 62 to rotate, because clutch plate 62 now coordinates for transmission with sealing control wheel 30, clutch plate 62 is just with movable sealing control wheel 30 to rotate, and sealing control wheel 30 is stirred sealing ball 50 and moved towards delivery port 142.
Please refer to Fig. 9, when current continue always, sealing control wheel 30 continues to rotate, until seal up described delivery port 142 when sealing ball 50 moves to the position of described delivery port 142.
Please refer to Figure 10, this relief valve 90 is arranged on this lower cover 14.Ball sealer 50 is closed after weep hole 142 stops water outlet, now open relief valve 90 by the water venting in body 10, can remove the pressure of the water in body 10, making sealing control wheel 30 that ball sealer 50 can be driven under the twisting force of torsion spring 35 to reset to original state is that next fixing quantity is prepared.Here, be understandable that, relief valve 90 can be opened on the optional position of body 10, and the water in body 10 can be made to release as long as open relief valve 90, particular location is unrestricted.
Please refer to Fig. 6 and Figure 11, this flow regulation handle 80 of the present embodiment is arranged on this lower cover 14, and circumference can rotate on lower cover 14, can certainly adopt flow regulation handle 80 is arranged on body 10 sidewall on and along the sidewall circumferential movement of body 10, this flow regulation handle 80 has one and extend into for carrying out spacing limiting section 82 to the initial position of sealing control wheel 30 in this body 10, and the bottom surface of lower cover 14 is provided with flow scale to regulate intuitively and to indicate default flow scale.Rotating this flow regulation handle 80 drives this limiting section 82 to move thus the initial position changing sealing control wheel 30 and ball sealer 50, thus accurately can change the water amount of control device as required.
The above, be only the utility model preferred embodiment, therefore the scope that the utility model implements can not be limited according to this, the equivalence namely done according to the utility model the scope of the claims and description change with modify, all should still belong in scope that the utility model contains.
Claims (10)
1. one kind prevents the control device of excessive feedwater, comprise the body being provided with water inlet and delivery port, it is characterized in that: also comprise and being arranged in this body and the impeller be arranged in successively on same axis, planetary gear reducing mechanism and sealing control wheel, described sealing control wheel drives a ball sealer to open or seal described delivery port, described impeller is subject to the water impact from water inlet and rotates and drive sealing control wheel to rotate by the transmission of this planetary gear reducing mechanism, stir sealing ball when sealing control wheel is rotated to move, sealing ball seals up described delivery port when moving to the position of described delivery port.
2. a kind of control device preventing excessive feedwater according to claim 1, it is characterized in that: also comprise and be arranged on this intrinsic clutch, this clutch comprises clutch plate and elastic component, and this clutch plate is movably arranged between this planetary gear reducing mechanism and sealing control wheel and is also in transmission connection with this planetary gear reducing mechanism all the time; Under water flowing state, this clutch plate to move towards first direction by hydraulic pressure effect and is in transmission connection with sealing control wheel, and under obstructed water state, this clutch plate of this resilient element urges moves towards second direction and is separated with sealing control wheel; Sealing control wheel is connected with the torsion spring for driving it to reset to initial position.
3. a kind of control device preventing excessive feedwater according to claim 2, it is characterized in that: this clutch also comprises a motion bar, this motion bar is connected with this clutch plate near one end of delivery port, this motion bar is provided with a compression plate near one end of water inlet, and described compression plate is just arranged this water inlet.
4. a kind of control device preventing excessive feedwater according to claim 3, is characterized in that: this body interior is provided with a upper chamber and a lower chamber, and described water inlet is positioned at upper chamber, and described delivery port is positioned at lower chamber; This impeller is arranged in this upper chamber; This planetary gear reducing mechanism, sealing control wheel, clutch plate, ball sealer are arranged in this lower chamber; This motion bar runs through this upper chamber and lower chamber.
5. a kind of control device preventing excessive feedwater according to claim 1, it is characterized in that: also comprise and be arranged on this intrinsic water body excessively, this is crossed water body and covers this impeller, and this is crossed water body and is provided with water hole, and current enter this along water hole and to cross in water body and to impact impeller.
6. a kind of control device preventing excessive feedwater according to claim 2, it is characterized in that: the bottom of this clutch plate is provided with projection, sealing control wheel arranges some push rods equably along in its circumference, when described projection moves to the gap between two push rods, clutch plate rotates can be with movable sealing control wheel to rotate.
7. a kind of control device preventing excessive feedwater according to claim 1, is characterized in that: this body upper end is connected with upper cover, and this water inlet is arranged on this and covers; This body lower end is connected with lower cover, and this delivery port covers under being arranged on this.
8. a kind of control device preventing excessive feedwater according to claim 7, it is characterized in that: also comprise and be connected to bottom this lower cover or the flow regulation handle of this body sidewall, this flow regulation handle can circumference rotate, and this flow regulation handle has one and extend in this body for carrying out spacing limiting section to the initial position of sealing control wheel; Rotating this amount regulating handle drives this limiting section to move thus the initial position changing sealing control wheel.
9. a kind of control device preventing excessive feedwater according to claim 1 to 8 any one, is characterized in that: also comprise the relief valve for being released by intrinsic water be arranged on this body.
10. a kind of control device preventing excessive feedwater according to claim 1 to 8 any one, it is characterized in that: described planetary gear reducing mechanism at least comprises primary speed-down mechanism, this reducing gear comprises gear and floating disc, the one side of this impeller opposed gear is provided with cam, and the middle part of this gear is provided with the mating holes inserted for the cam on this impeller; This pinion rotation drives this floating disc to rotate, and this floating disc rotates described in transmission and seals control wheel rotation, and the inner surface of this body is provided with the cooperating teeth with this gears meshing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520493221.7U CN204898808U (en) | 2015-07-09 | 2015-07-09 | Prevent controlling means of excessive feedwater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520493221.7U CN204898808U (en) | 2015-07-09 | 2015-07-09 | Prevent controlling means of excessive feedwater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204898808U true CN204898808U (en) | 2015-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520493221.7U Active CN204898808U (en) | 2015-07-09 | 2015-07-09 | Prevent controlling means of excessive feedwater |
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| Country | Link |
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| CN (1) | CN204898808U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109642423A (en) * | 2016-08-29 | 2019-04-16 | 高仪达尔卫生系统公司 | Excretion external member for toilet flush |
| CN115862280A (en) * | 2023-02-23 | 2023-03-28 | 济南宁通自动化技术有限公司 | Alarm device for explosion-proof quantitative controller |
-
2015
- 2015-07-09 CN CN201520493221.7U patent/CN204898808U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109642423A (en) * | 2016-08-29 | 2019-04-16 | 高仪达尔卫生系统公司 | Excretion external member for toilet flush |
| CN115862280A (en) * | 2023-02-23 | 2023-03-28 | 济南宁通自动化技术有限公司 | Alarm device for explosion-proof quantitative controller |
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