CN223635462U - A dual-filter with check valve - Google Patents
A dual-filter with check valveInfo
- Publication number
- CN223635462U CN223635462U CN202520051564.1U CN202520051564U CN223635462U CN 223635462 U CN223635462 U CN 223635462U CN 202520051564 U CN202520051564 U CN 202520051564U CN 223635462 U CN223635462 U CN 223635462U
- Authority
- CN
- China
- Prior art keywords
- filter
- water
- hole
- annular
- seat
- 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
- Check Valves (AREA)
Abstract
The double-filter-belt check filter valve comprises a valve body, a water inlet connector arranged at the left end of the valve body and a water outlet connector arranged at the right end of the valve body, wherein a coarse filter connector and a fine filter connector arranged at the right side of the coarse filter connector are arranged on the upper surface of the valve body, the water inlet connector is communicated with the coarse filter connector through a first water through hole, the coarse filter connector is communicated with the left part of the valve body through a second water through hole, the right part of the valve body is communicated with the fine filter connector through a third water through hole, the fine filter connector is communicated with the water outlet connector through a fourth water through hole, a first filter pipe is arranged in the coarse filter connector, and a pipe orifice at the lower end of the first filter pipe is communicated with the first water through hole. The double-filter-belt non-return filter valve provided by the utility model has double-channel filtration, can simultaneously filter out large-particle impurities and small-particle impurities in water flow, can effectively avoid water flow backflow, and has a non-return effect.
Description
Technical Field
The utility model relates to a filter valve, in particular to a double-filter-belt non-return filter valve.
Background
The filter valve is a valve with filtering function, when the rivers flow through the valve body, then can be filtered by its inside filter tube, traditional filter valve only has one filtration, and mix the impurity that has the granule size to differ in the rivers at actual filterable in-process, if the filter tube in the filter valve adopts the filtration pore of aperture, then very easily cause the jam of filtration pore on the filter tube, influence the normal flow of rivers, if the filter tube in the filter valve adopts the filtration pore of aperture, although difficult quilt impurity in the rivers blocks up, but can lead to still mixing the little granule impurity in the rivers after being filtered, can't guarantee the clean degree of rivers.
In the process of actually conveying water flow through the filter valve, backflow can occur due to the existence of certain resistance, and once the water flow flows back, a large amount of impurities which are originally trapped in the filter pipe can flow back once, so that serious water flow pollution is caused.
Disclosure of Invention
The utility model aims to solve the technical problem of the prior art and provides a double-filter-belt non-return filter valve which not only has double-channel filtration, but also can simultaneously filter out large-particle impurities and small-particle impurities in water flow, and can effectively avoid water flow backflow and play a role in non-return.
The technical scheme adopted for solving the technical problems is as follows:
The utility model discloses a double-filter-belt non-return filter valve which comprises a valve body, a water inlet joint arranged at the left end of the valve body and a water outlet joint arranged at the right end of the valve body, wherein a coarse filter joint and a fine filter joint arranged at the right side of the coarse filter joint are arranged on the upper surface of the valve body, the water inlet joint is communicated with the coarse filter joint through a first water through hole, the coarse filter joint is communicated with the left part of the valve body through a second water through hole, the right part of the valve body is communicated with the fine filter joint through a third water through hole, the fine filter joint is communicated with the water outlet joint through a fourth water through hole, a first water filtering pipe is arranged in the coarse filter joint, a pipe orifice at the lower end of the first water filtering pipe is communicated with the first water through hole, the outer wall of the first water filtering pipe shields the second water through hole, a second water filtering pipe orifice at the lower end of the second water filtering pipe is communicated with the third water through hole, the diameter of the filter hole on the first water filtering pipe is larger than the diameter of the filter hole on the second water filtering pipe, and the water outlet joint has a non-return structure.
The inner wall of the upper part of the first plug is provided with a first annular upper limit step, the first water filtering pipe is positioned between the first upper limit step and the first lower limit step, and the lower end of the first water filtering pipe is sleeved outside the first limit part.
The edge of the hole at the upper end of the third water through hole extends upwards to form a second annular limiting part, the outer ring of the third water through hole is provided with a second annular lower limiting step, a second plug matched with the fine filter joint is connected in the port at the upper end of the fine filter joint in a threaded manner, the inner wall of the upper part of the second plug is provided with a second annular upper limiting step, the second filter pipe is positioned between the second upper limiting step and the second lower limiting step, and the lower end of the second filter pipe is sleeved outside the second limiting part.
The upper ends of the coarse filter joints and the fine filter joints are inclined rightwards.
The check structure comprises a clamping part arranged in the left part of the water outlet connector, wherein the clamping part is annular, an annular clamping groove is arranged in the water outlet connector, the clamping groove is arranged on the right side of the clamping part, the diameter of the clamping groove gradually increases from left to right, a check seat attached to the right side wall of the clamping part is arranged in the water outlet connector, the check seat is annular, a limit seat matched with the clamping groove is arranged on the right side of the check seat, the limit seat is annular, the right side of the limit seat is provided with a guide seat coaxial with the limit seat, the guide seat is connected with the limit seat through a plurality of supporting plates which are uniformly distributed in circumference, a guide hole is formed in the center of the guide seat, an annular spring groove is formed in the left side wall of the guide seat, a sealing ring is arranged between the check seat and the limit seat, a guide rod matched with the guide hole is arranged in the guide hole, the left end of the guide rod penetrates into the inner hole of the limit seat leftwards, a sealing head is arranged to seal the hole of the right end of the sealing ring, the hole is blocked and sealed, a spring head is arranged between the sealing head and the spring groove is arranged outside the guide rod.
The right end of the limiting seat is provided with a plurality of notches which are uniformly distributed in circumference, an elastic sheet is arranged in the notches, and the right end of the elastic sheet is inclined outwards and is embedded in the clamping groove.
The outer edge of the right end face of the check seat extends rightward to form an annular connecting part, an annular groove is formed in the inner wall of the connecting part, an annular bulge matched with the groove is formed in the outer wall of the left end of the limit seat, and the sealing ring is located between the left end face of the limit seat and the right end face of the check seat.
The left end face of the sealing ring is provided with an annular positioning groove, and the right end face of the non-return seat is provided with a positioning protrusion matched with the positioning groove.
An annular groove is arranged on the outer wall of the check seat, and an O-shaped ring matched with the annular groove is arranged in the annular groove.
The beneficial effects of the utility model are as follows:
Compared with the prior art, the first water filtering pipe adopting the double-filtering-belt non-return filter valve with the structure can form first filtering, the second water filtering pipe can form second filtering, the first filtering formed by the first water filtering pipe can filter out large-particle impurities in water flow, coarse filtering of the water flow is realized, the second filtering formed by the second water filtering pipe can filter out small-particle impurities in the water flow, fine filtering of the water flow is realized, and therefore the cleanliness of the water flow is guaranteed to the greatest extent in a double-filtering mode, meanwhile, the water flow backflow can be effectively prevented through the non-return structure, and the situation that a large amount of large-particle impurities trapped in the first water filtering pipe enter a water inlet pipeline connected with a water inlet connector to cause serious pollution due to water flow backflow is effectively avoided.
Drawings
FIG. 1 is a cross-sectional view of a dual filter belt check filter valve of the present utility model;
fig. 2 is an enlarged view of a portion a of fig. 1;
FIG. 3 is a schematic structural view of the check structure;
fig. 4 is a schematic view of the structure of the dual filter check filter valve of the present utility model.
Detailed Description
The invention is described in further detail below with reference to the attached drawings and detailed description:
Referring to fig. 1 to 4, the present utility model provides a dual-filter-band non-return filter valve, which comprises a valve body 20, a water inlet connector 2 arranged at the left end of the valve body 20, and a water outlet connector 3 arranged at the right end of the valve body 20, wherein a coarse filter connector 4 and a fine filter connector 5 arranged at the right side of the coarse filter connector 4 are arranged on the upper surface of the valve body 20, the water inlet connector 2 and the coarse filter connector 4 are communicated through a first water through hole 6, the coarse filter connector 4 and the left part of the valve body 20 are communicated through a second water through hole 7, the right part of the valve body 20 and the fine filter connector 5 are communicated through a third water through hole 8, the fine filter connector 5 and the water outlet connector 3 are communicated through a fourth water through hole 9, a first water filter 10 is arranged in the coarse filter connector 4, a pipe orifice at the lower end of the first water filter 10 is communicated with the first water through hole 6, a second water through hole 7 is arranged in the fine filter connector 5, a second water filter 11 is arranged in the fine filter connector 11, the lower pipe orifice of the second water filter 11 is communicated through hole 8, the third water through hole 8 is communicated through the third water through hole 8, the upper water through hole 11 is blocked by the outer wall of the first water filter 10, and the first water filter 10 has a large water outlet structure.
The edge of the hole at the upper end of the first water through hole 6 extends upwards to form a first annular limiting part 12, a first annular lower limiting step 13 is arranged on the outer ring of the first water through hole 6, a first plug 14 matched with the first annular limiting step is screwed in the port at the upper end of the coarse filter joint 4, a first annular upper limiting step 15 is arranged on the inner wall of the upper part of the first plug 14, the first water filtering pipe 10 is positioned between the first upper limiting step 15 and the first lower limiting step 13, and the lower end of the first water filtering pipe 10 is sleeved outside the first limiting part 12.
The edge of the hole at the upper end of the third water through hole 8 extends upwards to form a second annular limiting part 16, a second annular lower limiting step 17 is arranged on the outer ring of the third water through hole 8, a second plug 18 matched with the second annular lower limiting step is connected in the port at the upper end of the fine filter joint 5 in a threaded mode, a second annular upper limiting step 19 is arranged on the inner wall of the upper portion of the second plug 18, the second water filtering pipe 11 is located between the second upper limiting step 19 and the second lower limiting step 17, and the lower end of the second water filtering pipe 11 is sleeved outside the second limiting part 16.
The upper ends of the coarse filter joint 4 and the fine filter joint 5 are inclined rightwards.
The check structure comprises a clamping part 101 arranged in the left part of a water outlet connector 3, wherein the clamping part 101 is annular, an annular clamping groove 102 is arranged in the water outlet connector 3, the clamping groove 102 is arranged on the right side of the clamping part 101, the diameter of the clamping groove 102 gradually increases from left to right, a check seat 103 attached to the right side wall of the clamping part 101 is arranged in the water outlet connector 3, the check seat 103 is annular, a limit seat 104 matched with the clamping groove 102 is arranged on the right side of the check seat 103, the limit seat 104 is annular, a guide seat 105 coaxial with the limit seat 104 is arranged on the right side of the limit seat 104, the guide seat 105 is connected with the limit seat 104 through a plurality of support plates 106 which are uniformly distributed in circumference, a guide hole 107 is formed in the center of the guide seat 105, an annular spring groove 108 is formed in the left side wall of the guide seat 105, a sealing ring 109 is arranged between the check seat 103 and the limit seat 104, a guide rod 110 matched with the guide hole 107 is arranged in the guide hole, the guide rod 110 penetrates into the left end of the guide rod 110 to the left end and is provided with a seal hole 111, a seal head 111 is sleeved outside the guide hole 111, and a seal hole 111 is formed between the left end of the guide rod 111 and the seal hole 111.
The right end of the limiting seat 104 is provided with a plurality of notches 113 which are uniformly distributed circumferentially, an elastic sheet 114 is arranged in the notch 113, and the right end of the elastic sheet 114 is inclined outwards and is embedded in the clamping groove 102.
The outer edge of the right end face of the check seat 103 extends rightward to form an annular connecting part 115, an annular groove 116 is formed in the inner wall of the connecting part 115, an annular protrusion 117 matched with the groove 116 is formed in the outer wall of the left end of the limit seat 104, and the sealing ring 109 is located between the left end face of the limit seat 104 and the right end face of the check seat 103.
The left end face of the sealing ring 109 is provided with an annular positioning groove 118, and the right end face of the check seat 103 is provided with a positioning protrusion 119 matched with the positioning groove 118.
An annular groove 120 is arranged on the outer wall of the check seat 103, and an O-shaped ring 121 matched with the annular groove 120 is arranged in the annular groove.
The application method of the utility model is as follows:
The water inlet connector 2 can be used for connecting the water inlet pipeline, the water outlet connector 3 can be used for connecting the water outlet pipeline, after the rivers in the water inlet pipeline get into the water inlet connector 2, then can loop through first limber 6, first filter tube 10 lower extreme port flows into in the first filter tube 10, under the condition that first filter tube 10 outer wall shields second limber 7, rivers in the first filter tube 10 are in to the valve body 20 if will flow into, necessarily, the filtration pore on the first filter tube 10 of needs to flow through, and first filter tube 10 and second filter tube 11 all are current filter tubes, only the diameter size of filtration pore is different, first filter tube 10 that has major diameter filtration pore can keep the large granule impurity in the rivers inside itself, realize the coarse filtration of rivers, after the rivers after the coarse filtration flow through second limber 7 flows into in to the valve body 20, then can loop through third limber 8, second filter tube 11 lower extreme mouth flows into in the second filter tube 11, the water flow through the filtration pore is in to the second filter tube 11, the water outlet 11 shields the filtration pore on the water outlet of the second filter tube 11 of the condition that the fourth filter tube 9, thereby guarantee that the water flow in the inside of the filter tube 3 is small diameter is small, the water outlet of the inside has the water outlet connector is clean, thereby the water outlet 3 is realized, the water outlet filter effect of the inside the water outlet connector is small.
After the water flows into the water outlet connector 3, under the pushing of the subsequent water flow, the water flow can push the sealing head 111 rightwards through the inner hole of the check seat 103, when the sealing head 111 moves rightwards, the guide rod 110 can play a guide role to ensure the stability of the sealing head 111 when moving rightwards, meanwhile, the spring 112 is compressed and generates elastic force, after the sealing head 111 moves rightwards, the hole opening at the right end of the inner hole of the sealing ring 109 is not blocked and sealed any more, the water flow in the inner hole of the check seat 103 can flow into the gap between the inner wall of the limit seat 104 and the outer wall of the sealing head 111 through the hole opening at the right end of the inner hole of the sealing ring 109, and then flows to the right end port of the water outlet connector 3 through the gap between the adjacent support plates 106, and finally flows into the water outlet pipeline connected with the water outlet connector 3 for use.
If the backflow occurs in the water flow conveying process, the backflow water flow can push the sealing head 111 leftwards, meanwhile, the elastic force of the spring 112 can enable the sealing head 111 to move leftwards and reset at the first time, the hole at the right end of the inner hole of the sealing ring 109 is blocked and sealed at the first time, and therefore the backflow water flow is directly trapped in the water outlet connector 3, and the non-return effect is achieved.
As can be seen from the above, the first filter pipe 10 of the present utility model can form a first filtering process, the second filter pipe 11 can form a second filtering process, the first filtering process formed by the first filter pipe 10 can filter out large particle impurities in the water flow, so as to realize coarse filtering of the water flow, the second filtering process formed by the second filter pipe 11 can filter out small particle impurities in the water flow, so as to realize fine filtering of the water flow, thereby ensuring the cleanliness of the water flow to the greatest extent in a double filtering manner, and meanwhile, the water flow backflow can be effectively prevented by the non-return structure, and the serious pollution caused by the large particle impurities trapped in the first filter pipe entering the water inlet pipeline connected with the water inlet connector 2 due to the water flow backflow can be effectively avoided.
The edge of the hole at the upper end of the first water through hole 6 upwards extends to form a first annular limiting part 12, the outer ring of the first water through hole 6 is provided with a first annular lower limiting step 13, a first plug 14 matched with the first annular limiting step 15 is screwed in the port at the upper end of the coarse filter joint 4, the inner wall of the upper part of the first plug 14 is provided with a first annular upper limiting step 15, the first filter pipe 10 is positioned between the first upper limiting step 15 and the first lower limiting step 13, the lower end of the first filter pipe 10 is sleeved outside the first limiting part 12, the fixing mode not only can ensure the stability of the first filter pipe 10, but also is beneficial to the disassembly of the first filter pipe 10, and the first plug 14 can be directly pulled out of the coarse filter joint 4 and cleaned by screwing the first plug 14 out of the port at the upper end of the coarse filter joint 4.
The edge of the hole at the upper end of the third water through hole 8 upwards extends to form a second annular limiting part 16, the outer ring of the third water through hole 8 is provided with a second annular lower limiting step 17, a second plug 18 matched with the second annular limiting step is screwed in the port at the upper end of the fine filter joint 5, the inner wall of the upper part of the second plug 18 is provided with a second annular upper limiting step 19, the second filter pipe 11 is positioned between the second upper limiting step 19 and the second lower limiting step 17, the lower end of the second filter pipe 11 is sleeved outside the second limiting part 16, the fixing mode not only can ensure the stability of the second filter pipe 11, but also is beneficial to the disassembly of the second filter pipe 11, and the second plug 18 can be directly pulled out of the fine filter joint 5 and cleaned by screwing the second plug 18 out of the port at the upper end of the fine filter joint 5.
The upper ends of the coarse filter joint 4 and the fine filter joint 5 are inclined rightwards, and the structural design is convenient for guiding the flow direction of water flow, so that the water flow can pass through the first filter pipe 10 and the second filter pipe 11 faster, and the flow speed of the water flow is ensured.
The right end of the limiting seat 104 is provided with a plurality of notches 113 which are uniformly distributed circumferentially, an elastic sheet 114 is arranged in the notches 113, the right end of the elastic sheet 114 is inclined outwards and embedded in the clamping groove 102, when the limiting seat 104 is directly arranged in the water outlet connector 3, the elastic sheet 114 can be extruded and contracted by the inner wall of the water outlet connector 3, and when the elastic sheet 114 is shifted to the position where the clamping groove 102 is located along with the limiting seat 104, the elastic sheet 114 can be restored to the original state and clamped in the clamping groove 102 under the elastic action of the elastic sheet 114, so that the fixing of the elastic sheet and the check seat 103 is realized.
The outer edge of the right end face of the check seat 103 extends rightward to form an annular connecting portion 115, an annular groove 116 is formed in the inner wall of the connecting portion 115, an annular protrusion 117 matched with the groove 116 is formed in the outer wall of the left end of the limit seat 104, the sealing ring 109 is located between the left end face of the limit seat 104 and the right end face of the check seat 103, and stability of the check seat 103 and the limit seat 104 during connection can be further guaranteed through the fixing mode.
The left end face of the sealing ring 109 is provided with an annular positioning groove 118, the right end face of the check seat 103 is provided with a positioning protrusion 119 matched with the positioning groove 118, and the positioning protrusion 119 and the positioning groove 118 can play a role in positioning when the sealing ring 109 is installed, so that the sealing ring 109 and the sealing head 111 are in a coaxial state, and the sealing head 111 can accurately block and seal the hole at the right end of the inner hole of the sealing ring 109.
The outer wall of the check seat 103 is provided with an annular groove 120, an O-shaped ring 121 matched with the annular groove 120 is arranged in the annular groove 120, and the existence of the O-shaped ring 121 can effectively ensure the tightness between the outer wall of the check seat 103 and the inner wall of the water outlet joint 3, so that the condition of water leakage during water flow backflow is effectively avoided.
Claims (9)
1. A double-filter-belt non-return filter valve comprises a valve body, a water inlet connector arranged at the left end of the valve body and a water outlet connector arranged at the right end of the valve body, and is characterized in that a coarse filter connector and a fine filter connector arranged at the right side of the coarse filter connector are arranged on the upper surface of the valve body, the water inlet connector and the coarse filter connector are communicated through a first water through hole, the coarse filter connector and the left part of the valve body are communicated through a second water through hole, the right part of the valve body and the fine filter connector are communicated through a third water through hole, the fine filter connector and the water outlet connector are communicated through a fourth water through hole, a first water filtering pipe is arranged in the coarse filter connector, a pipe orifice at the lower end of the first water filtering pipe is communicated with the first water through hole, the outer wall of the first water filtering pipe shields the second water through hole, a second water filtering pipe is arranged in the fine filter connector, the pipe orifice at the lower end of the second water filtering pipe is communicated with the third water through hole, the diameter of the second water filtering pipe shields the fourth water through hole, the diameter of the filtering hole on the first water filtering pipe is larger than the diameter of the filtering hole on the second water filtering pipe, and the water outlet connector has a non-return structure.
2. The double-filter-belt non-return filter valve is characterized in that a first annular limiting part extends upwards from the edge of an upper end hole of a first water through hole, a first annular lower limiting step is arranged on the outer ring of the first water through hole, a first plug matched with the first annular lower limiting step is screwed in an upper end hole of a coarse filter joint, a first annular upper limiting step is arranged on the inner wall of the upper portion of the first plug, the first water filtering pipe is located between the first upper limiting step and the first lower limiting step, and the lower end of the first water filtering pipe is sleeved outside the first limiting part.
3. The double-filter-belt non-return filter valve is characterized in that a second annular limiting part extends upwards from the edge of an upper end hole of the third water through hole, a second annular lower limiting step is arranged on the outer ring of the third water through hole, a second plug matched with the second annular lower limiting step is screwed in the upper end hole of the fine filter joint, a second annular upper limiting step is arranged on the inner wall of the upper portion of the second plug, the second water filtering pipe is located between the second upper limiting step and the second lower limiting step, and the lower end of the second water filtering pipe is sleeved outside the second limiting part.
4. The dual filter check valve of claim 1, wherein the upper ends of the coarse filter and the fine filter are inclined to the right.
5. The dual filter belt check filter valve of claim 1, wherein the check structure comprises a clamping part arranged in the left part of the water outlet joint, and the clamping part is annular;
The water outlet connector is internally provided with an annular clamping groove which is positioned on the right side of the clamping part, the diameter of the clamping groove gradually increases from left to right, the water outlet connector is internally provided with a check seat which is attached to the side wall of the right side of the clamping part, the check seat is annular, the right side of the check seat is provided with a limit seat which is matched with the clamping groove, the limit seat is annular, the right side of the limit seat is provided with a guide seat which is coaxial with the limit seat, the guide seat is connected with the limit seat through a plurality of support plates which are uniformly distributed in circumference, the center of the guide seat is provided with a guide hole, the left side wall of the guide seat is provided with an annular spring groove, a sealing ring is arranged between the check seat and the limit seat, the guide hole is internally provided with a guide rod which is matched with the guide seat, the left end of the guide rod penetrates leftwards into an inner hole of the limit seat to be blocked and sealed by the sealing head, and a spring which is sleeved outside the guide rod is arranged between the sealing head and the bottom of the spring groove.
6. The double-filter-belt non-return filter valve of claim 5, wherein the right end of the limiting seat is provided with a plurality of notches uniformly distributed circumferentially, an elastic sheet is arranged in the notch, and the right end of the elastic sheet is inclined outwards and is embedded in the clamping groove.
7. The double-filter-belt check filter valve of claim 5, wherein the outer edge of the right end face of the check seat extends rightward to form an annular connecting part, an annular groove is formed in the inner wall of the connecting part, an annular protrusion matched with the groove is formed in the outer wall of the left end of the limit seat, and the sealing ring is located between the left end face of the limit seat and the right end face of the check seat.
8. The double-filter-belt check filter valve of claim 5, wherein the left end face of the sealing ring is provided with an annular positioning groove, and the right end face of the check seat is provided with a positioning protrusion matched with the positioning groove.
9. The dual filter belt check filter valve of claim 5, wherein the outer wall of the check seat is provided with an annular groove, and an O-ring matched with the annular groove is arranged in the annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520051564.1U CN223635462U (en) | 2025-01-09 | 2025-01-09 | A dual-filter with check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520051564.1U CN223635462U (en) | 2025-01-09 | 2025-01-09 | A dual-filter with check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223635462U true CN223635462U (en) | 2025-12-05 |
Family
ID=97855853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202520051564.1U Active CN223635462U (en) | 2025-01-09 | 2025-01-09 | A dual-filter with check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223635462U (en) |
-
2025
- 2025-01-09 CN CN202520051564.1U patent/CN223635462U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110886867A (en) | A ball valve with check | |
| CN223635462U (en) | A dual-filter with check valve | |
| CN205710154U (en) | Utilize the water pump defecator of detachable conical screen | |
| CN219280869U (en) | A combined resin sewer interface | |
| CN209196185U (en) | A kind of ball-and-seat | |
| CN214389166U (en) | Launching control module | |
| CN223366344U (en) | One-way valve structure | |
| CN211371348U (en) | Sewage valve convenient to clearance debris | |
| CN111097221A (en) | A pipeline filter device with self-cleaning function | |
| CN111603824B (en) | A detachable and self-locking water filter | |
| CN220834482U (en) | Efficient Y type filter | |
| CN211836686U (en) | Pipeline filtering device with self-cleaning function | |
| CN220495796U (en) | Front filter with adjustable water inlet and outlet installation direction | |
| CN211474946U (en) | Constant-pressure constant-flow safety valve | |
| CN208364887U (en) | A kind of constant flow filtering valve group | |
| CN112755630A (en) | Launching control module | |
| CN220125626U (en) | Double-loose-joint Y-shaped filter | |
| CN211174065U (en) | Novel filter between valves | |
| CN209221622U (en) | A kind of integral pipe sewage flow distributing device | |
| CN220878031U (en) | Filtering valve | |
| CN219596068U (en) | Sealing structure of pre-filter | |
| CN212584065U (en) | Joint with round tube-shaped filter screen for multi-way valve | |
| CN223282745U (en) | A filter type metal hose | |
| CN210114885U (en) | Sewage filtering structure | |
| CN223393065U (en) | Valves with anti-blocking structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |