CN204551672U - Be integrated with the pan of pedal washing valve - Google Patents
Be integrated with the pan of pedal washing valve Download PDFInfo
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- CN204551672U CN204551672U CN201520103174.0U CN201520103174U CN204551672U CN 204551672 U CN204551672 U CN 204551672U CN 201520103174 U CN201520103174 U CN 201520103174U CN 204551672 U CN204551672 U CN 204551672U
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Abstract
The utility model discloses a kind of pan being integrated with pedal washing valve, and water inlet installing port is located at pan body rearward end; Toilet bowl is located at pan body center position, toilet bowl front end or rear end are provided with delivery port, the toilet bowl other end away from delivery port is provided with sewage draining exit, and the pan body of toilet bowl periphery is provided with the annular water chamber that cross section is " C " font, an integrated pedal washing valve in water inlet installing port; The delivery port of pedal washing valve front end is connected to pressure charging valve, and pressure charging valve has a main jet water hole and two side water spray apertures.The utility model tool has the following advantages: 1, in water inlet installing port, be integrated with pedal washing valve, eliminate field erected trouble.2, pressure charging valve increases the pressure of water spray, and the cross section of annular water chamber be the side that water that " C " font can allow pressure charging valve spray again sprays to toilet bowl, so just can economize on water.3, move the position of sewage draining exit, have adjusted the bending direction of splashproof arc section simultaneously, spill toilet bowl with regard to the anti-sealing of energy so outside upper.
Description
Technical field
The utility model belongs to field of sanitary ware, particularly relates to a kind of pan being integrated with pedal washing valve.
Background technology
As everyone knows, pan is that one uses sanitaryware widely, existing pan is provided with into water installing port, toilet bowl and sewage draining exit on pan body, wherein toilet bowl is located at pan body center position, be provided with a delivery port in the front end of toilet bowl or rear end, the toilet bowl other end end away from this delivery port is provided with a sewage draining exit.In order to splashproof, be provided with a splashproof arc section on the top of toilet bowl front end or front end, this splashproof arc section is near sewage draining exit, and the center of circle of splashproof arc section is towards the upper end of sewage draining exit.
In addition, described water inlet installing port is located at pan rear body, this water inlet installing port is installed into water pipe or flushing valve when being used for site operation, and this water inlet installing port is by being located at annular water chamber on pan body to described delivery port, and the cross section of this annular water chamber is " O " font.Further, the side that annular water chamber is positioned at toilet bowl is circumferentially provided with multiple ostium excurrens, to rinse the excreta in toilet bowl from the side by ostium excurrens.
In use, we find that existing pan exists following defect:
1, be arranged on in water installing port when water inlet pipe or flushing valve are all site operations, install inconvenient, long construction period, and the position that water inlet pipe or flushing valve are exposed into water installing port is more, outward appearance unsightly.
When 2, entering lavatory afterflush, water inlet pipe or the first water outlet of flushing valve, it is after the annular water chamber of O shape that water fills whole cross section, be flushed to toilet bowl from delivery port and ostium excurrens again, this exiting water process can Vivid analogy be " water squeezing ", the water yield needed is larger could be clean by waste flush, so just causes the water-saving performance of traditional pan poor.
3, Location for Sewage is not too suitable, excreta can be flushed to sewage draining exit by the water flowed out from delivery port, but water can be flushed to the end of toilet bowl after breaking through sewage draining exit, and then bounce-back is returned, thus spill toilet bowl, and then be easy to splash on the hip of toilet user, the functional performance of this pan will be affected like this.In addition, although splashproof arc section can play splashproof effect to a certain extent, still can splash outside toilet bowl when the water of delivery port ejection is too many.
Utility model content
It is good that technical problem to be solved in the utility model is to provide a kind of water-saving performance, and be integrated with the pan of pedal washing valve.
The technical solution of the utility model is as follows: a kind of pan being integrated with pedal washing valve, pan body (1) is provided with into water installing port (2), toilet bowl (3) and delivery port (4), installing port (2) of wherein intaking is located at pan body (1) rearward end; Described toilet bowl (3) is located at pan body (1) middle position, the front end of this toilet bowl or rear end are provided with a described delivery port (4), the toilet bowl other end away from this delivery port is provided with a sewage draining exit (5), and the pan body (1) of toilet bowl (3) periphery is provided with an annular water chamber (6), it is characterized in that: in described water inlet installing port (2), integrated installation has a pedal washing valve (7), the pedal of this pedal washing valve is higher than water inlet installing port (2) end face 2-3cm; The delivery port of described pedal washing valve (7) front end is connected to a pressure charging valve (8), this pressure charging valve is arranged in described water inlet installing port (2), and pressure charging valve (8) front portion has a main jet water hole (P) and two sides water spray aperture (P '), wherein main jet water hole (P) supplies water to described delivery port (4), and two sides water spray aperture (P ') is located at the left side and the front in this main jet water hole respectively;
The cross section of described annular water chamber (6) is " C " font, the breach being somebody's turn to do " C " font is side water jet (6a), this side water jet is towards the side of described toilet bowl (3), and two described side water spray apertures (P ') are respectively towards left-half and the first half water spray of annular water chamber (6).
Compared with traditional structure, change of the present utility model is as follows: 1, in water inlet installing port (2), integrated installation has a pedal washing valve (7), the pedal of this pedal washing valve is higher than water inlet installing port (2) end face 2-3cm, pedal washing valve (7) is so just integrated with when dispatching from the factory, eliminate field erected trouble, constructability, and the pedal of pedal washing valve is higher than water inlet installing port (2) end face 2-3cm, appearance looks elegant, good-looking; 2, on pedal washing valve (7), a pressure charging valve is connected to, and the cross section of annular water chamber (6) is adjusted to " C " font by " 0 " font, the breach of " C " font is side water jet (6a), this side water jet is towards the side of described toilet bowl (3), and two described side water spray apertures (P ') are respectively towards left-half and the first half water spray of annular water chamber (6).Adopt above-mentioned adjustment, pressure charging valve can increase the pressure of water spray greatly, and the cross section of annular water chamber (6) is water that " C " font can allow pressure charging valve spray sprays to the side of toilet bowl (3), this and traditional structure need to fill whole annular water chamber (6) afterwards water just spray to toilet bowl (3) side and have fundamental difference, so just can realize water saving further, thus improve water-saving performance of the present utility model.
As important optimal design, described pressure charging valve (8) is made up of eccentric pipe (9) and water spout (10), wherein eccentric pipe (9) rear portion has the first internal thread hole section (9a) vertically, and this first internal thread hole section is connected on the anterior water side of described pedal washing valve (7); Described eccentric pipe (9) front portion is eccentric part (9b), have the second internal thread hole section (9c) in the leading section of this eccentric part, the axial line of this second internal thread hole section is parallel with described first internal thread hole section (9a); Described second internal thread hole section (9c) is communicated with the first internal thread hole section (9a) with bellmouth section (9e) by aperture section (9d) successively, and the axial line of aperture section (9d) is parallel with the second internal thread hole section (9c), and bellmouth section (9e) is large front little afterwards; Described eccentric part (9b) surface thereof has an air inlet (9f), eccentric part (9b) external surface is run through in the outer end of this air inlet, and near eccentric pipe (9) rear portion, and the step surface that described second internal thread hole section (9c) is connected with aperture section (9d) is run through in air inlet (9f) the inner;
Described water spout (10) rear portion is connecting portion (10a), thread segment on this connecting portion periphery is connected with described second internal thread hole section (9c), and the water hole of connecting portion (10a) center is communicated with described aperture section (9d); Described water spout (10) front portion is bent portion (10b), bent portion (10b) is provided with a described main jet water hole (P) vertically, this rear end, main jet water hole is communicated with the water hole of described connecting portion (10a) center, and the cross-sectional area of main jet water hole (P) reduces back to front gradually, and the leading section in main jet water hole is tabular structure; The water inlet of two described side hole for water sprayings (P ") rear end is communicated with the rear portion of main jet water hole (P); the water jet of side hole for water spraying (P ") front end runs through bent portion (10b) periphery, and has angle between the water jet of side hole for water spraying (P ") and main jet water hole (P) water jet.
Adopt above structure, the outside air that can not only pass through to enter in air inlet (9f) pressurizes to water, thus the water-band allowing main jet water hole (P) and side hole for water spraying (P ") spray has pressure; so just also effectively can rinse the excreta in toilet bowl (3) when reducing the water yield, thus effectively improve water-saving performance.Meanwhile, this pressure charging valve (8) structure is simple, easy to implement, cheap, and easy for installation, has good practicality.
Described sewage draining exit (5) is located at toilet bowl (3) front end or rear end, and be provided with a splashproof arc section with this sewage draining exit with toilet bowl (3) top of holding, this splashproof arc section is towards the upper-end bent of sewage draining exit (5).
Compared with traditional structure, the utility model moves the position of sewage draining exit (5), and be located at front end or the rear end of toilet bowl (3), instead of the end of traditional structure, have adjusted the bending direction of splashproof arc section simultaneously, and make splashproof arc section towards the upper-end bent of sewage draining exit (5).After adopting said structure adjustment, excreta in toilet bowl (3) is directly flushed in sewage draining exit (5) by the water that delivery port (4) place so just can be allowed to spray, and water be flushed to toilet bowl (3) front end or rear end inwall on rebound the again water yield of returning smaller, and the bending direction of splashproof arc section is towards the upper-end bent of sewage draining exit (5), so again can to pressing down a small amount of water of returning that rebounds, and be pressed onto in sewage draining exit (5), thus anti-sealing spills toilet bowl (3) outward well, and then avoid water to splash on the hip of toilet user, so just improve splash-proof effect of the present utility model and functional performance well.
As optimal design, the water jet cross section of described main jet water hole (P) and side hole for water spraying (P ") is mounting hole, and two side hole for water sprayings (P ") be symmetrical arranged about main jet water hole (P).
Adopt above structure, the water jet cross section of described main jet water hole (P) and side hole for water spraying (P ") is all designed to speed and the pressure that mounting hole just can increase water spray better, thus more effectively economizes on water.
Side water jet (6a) width of described annular water chamber (6) is 1-3mm, annular water chamber (6) arc-shaped side below this side water jet is highly vertically 1-3mm, and annular water chamber (6) arc-shaped side of side water jet (6a) top is highly vertically 8-12mm.Adopt above structure, so just can increase the pressure of side water spray, thus improve water-saving performance of the present utility model further.
As a kind of embodiment of the present utility model, when described delivery port (4) is positioned at toilet bowl (3) rear end, this delivery port is directly communicated with described water inlet installing port (2), and described main jet water hole (P) is towards delivery port (4), and directly this delivery port is supplied water.Adopt said structure, the pan of this structure is front drainage type pan.
As another embodiment of the present utility model, when described delivery port (4) is positioned at toilet bowl (3) front end, this delivery port is communicated with described main jet water hole (P) by a water pipe, and this water pipe embeds left-half or the right half part of described annular water chamber (6).Adopt said structure, the pan of this structure is rear drainage type pan, and water pipe is sebific duct or PPR pipe.
Beneficial effect: the utility model tool has the following advantages:
1, in water inlet installing port, integrated installation has a pedal washing valve, the pedal of this pedal washing valve is higher than water inlet installing port end face 2-3cm, so just be integrated with pedal washing valve when dispatching from the factory, eliminate field erected trouble, constructability, and the pedal of pedal washing valve is higher than water inlet installing port end face 2-3cm, appearance looks elegant, good-looking.
2, on pedal washing valve, be connected to a pressure charging valve, and the cross section of annular water chamber is adjusted to " C " font by " 0 " font, the breach of " C " font is side water jet, this side water jet is towards the side of toilet bowl, and two side water spray apertures are respectively towards left-half and the first half water spray of annular water chamber; In above-mentioned improvement, pressure charging valve can increase the pressure of water spray greatly, and the cross section of annular water chamber is water that " C " font can allow pressure charging valve spray sprays to the side of toilet bowl, after this and traditional structure need to fill whole annular water chamber, water just sprays to toilet bowl side fundamental difference, so just can realize water saving further, thus improve water-saving performance of the present utility model.
3, the position of sewage draining exit is moved, and be located at front end or the rear end of toilet bowl, have adjusted the bending direction of splashproof arc section simultaneously, and make splashproof arc section towards the upper-end bent of sewage draining exit, so just can spill outside toilet bowl by anti-sealing, and then avoid water to splash on the hip of toilet user, thus improve splash-proof effect of the present utility model and functional performance well by little change.
Accompanying drawing explanation
Fig. 1 is outline drawing of the present utility model;
Fig. 2 is front view of the present utility model;
Fig. 3 is the top view of Fig. 2;
Fig. 4 is the longitudinal section sectional view of Fig. 1;
Fig. 5 is the schematic diagram of pressure charging valve in Fig. 4;
Fig. 6 is the schematic diagram of eccentric pipe in Fig. 5;
Fig. 7 is that the A-A of Fig. 6 is to sectional view;
Fig. 8 is the axonometric drawing of water spout in Fig. 4;
Fig. 9 is the front view of Fig. 8;
Figure 10 is that the B-B of Fig. 9 is to sectional view.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail:
As shown in Fig. 1 to 10, a kind of pan being integrated with pedal washing valve, this pan main body is ceramic structure, and this pan main body has pan body 1.Pan body 1 is provided with into water installing port 2, toilet bowl 3 and delivery port 4, installing port 2 of wherein intaking is located at the rearward end of pan body 1.Described toilet bowl 3 is located at the middle position of pan body 1, and the front end of this toilet bowl 3 or rear end are provided with a delivery port 4, and the toilet bowl other end away from this delivery port is provided with a sewage draining exit 5, and the pan body 1 of toilet bowl 3 periphery is provided with an annular water chamber 6.
In described water inlet installing port 2, integrated installation has the pedal washing valve 7 of an outsourcing, and the pedal of this pedal washing valve 7 is higher than water inlet installing port 2 end face 2-3cm.The delivery port of described pedal washing valve 7 front end is connected to a pressure charging valve 8, this pressure charging valve 8 is arranged in described water inlet installing port 2, and pressure charging valve 8 front portion has a main jet water hole P and two side water spray aperture P ', wherein main jet water hole P supplies water to described delivery port 4, and two side water spray aperture P ' are located at the left side and the front of this main jet water hole P respectively.
As shown in Fig. 2 to 10, as preferably, described pressure charging valve 8 is made up of eccentric pipe 9 and water spout 10, and wherein eccentric pipe 9 rear portion has the first internal thread hole section 9a vertically, and this first internal thread hole section 9a is connected on the water side of pedal washing valve 7 front portion.Described eccentric pipe 9 front portion is eccentric part 9b, and have the second internal thread hole section 9c in the leading section of this eccentric part 9b, the axial line of this second internal thread hole section 9c is parallel with the first internal thread hole section 9a.Described second internal thread hole section 9c is communicated with the first internal thread hole section 9a with bellmouth section 9e by aperture section 9d successively, and the axial line of aperture section 9d is parallel with the second internal thread hole section 9c, and large front little after bellmouth section 9e.Described eccentric part 9b surface thereof has an air inlet 9f, and eccentric part 9b external surface is run through in the outer end of this air inlet 9f, and near eccentric pipe 9 rear portion.Air inlet 9f runs through the inner the step surface that the second internal thread hole section 9c is connected with aperture section 9d, and the effect of air inlet 9f is introduced in pressure charging valve 8 by the air in the external world, and carries out supercharging to water.
Described water spout 10 rear portion is connecting portion 10a, and the thread segment on this connecting portion periphery is connected with the second internal thread hole section 9c, and the water hole of connecting portion 10a center is communicated with aperture section 9d.Described water spout 10 front portion is bent portion 10b, and the bending direction of this bent portion 10b is consistent with the eccentric direction of eccentric part 9b.Bent portion 10b is provided with a described main jet water hole P vertically, and this P rear end, main jet water hole is communicated with the water hole of connecting portion 10a center.The cross-sectional area of main jet water hole P reduces back to front gradually, and the leading section of main jet water hole P is tabular structure, and the water jet cross section of main jet water hole P is mounting hole.Two described side hole for water spraying P " water inlet of rear end is communicated with the rear portion of main jet water hole P; side hole for water spraying P " water jet of front end runs through bent portion 10b periphery, and side hole for water spraying P " water jet and main jet water hole P water jet between there is angle, this angle is 0 °-90 °.Two side hole for water spraying P " water jet cross section be mounting hole, and two side hole for water spraying P " be symmetrical arranged about main jet water hole P.
As shown in Figure 4, meanwhile, the cross section of described annular water chamber 6 is " C " font, and the breach being somebody's turn to do " C " font is side water jet 6a, this side water jet 6a is towards the side of toilet bowl 3, and two side water spray aperture P ' are respectively towards left-half and the first half water spray of annular water chamber 6.As preferably, the side water jet 6a width of annular water chamber 6 is 1-3mm, and annular water chamber 6 arc-shaped side below the water jet 6a of this side is highly vertically 1-3mm, and annular water chamber 6 arc-shaped side above the water jet 6a of side is highly vertically 8-12mm.
In addition, when described delivery port 4 is positioned at toilet bowl 3 rear end, sewage draining exit 5 is located at the front end of toilet bowl 3, and the pan of this structure is front drainage type pan, is front drainage type pan shown in the utility model.In such an embodiment, delivery port 4 is directly communicated with water inlet installing port 2, and main jet water hole P is towards delivery port 4, and directly supplies water to this delivery port 4.
When described delivery port 4 is positioned at toilet bowl 3 front end, sewage draining exit 5 is located at toilet bowl 3 rear end, and the pan of this structure is rear drainage type pan, the non-tabular form of accompanying drawing of the present utility model.In such an embodiment, delivery port 4 is communicated with main jet water hole P by the water pipe of a PPR or colloid, and this water pipe embeds left-half or the right half part of annular water chamber 6.Finally, be provided with a splashproof arc section with sewage draining exit 5 with toilet bowl 3 top of holding, this splashproof arc section is towards the upper-end bent of sewage draining exit 5.
The foregoing is only preferred embodiment of the present utility model; it is not restriction with the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. one kind is integrated with the pan of pedal washing valve, pan body (1) is provided with into water installing port (2), toilet bowl (3) and delivery port (4), installing port (2) of wherein intaking is located at pan body (1) rearward end; Described toilet bowl (3) is located at pan body (1) middle position, the front end of this toilet bowl or rear end are provided with a described delivery port (4), the toilet bowl other end away from this delivery port is provided with a sewage draining exit (5), and the pan body (1) of toilet bowl (3) periphery is provided with an annular water chamber (6), it is characterized in that: in described water inlet installing port (2), integrated installation has a pedal washing valve (7), the pedal of this pedal washing valve is higher than water inlet installing port (2) end face 2-3cm; The delivery port of described pedal washing valve (7) front end is connected to a pressure charging valve (8), this pressure charging valve is arranged in described water inlet installing port (2), and pressure charging valve (8) front portion has a main jet water hole (P) and two sides water spray aperture (P '), wherein main jet water hole (P) supplies water to described delivery port (4), and two sides water spray aperture (P ') is located at the left side and the front in this main jet water hole respectively;
The cross section of described annular water chamber (6) is " C " font, the breach being somebody's turn to do " C " font is side water jet (6a), this side water jet is towards the side of described toilet bowl (3), and two described side water spray apertures (P ') are respectively towards left-half and the first half water spray of annular water chamber (6).
2. be integrated with the pan of pedal washing valve according to claim 1, it is characterized in that: described pressure charging valve (8) is made up of eccentric pipe (9) and water spout (10), wherein eccentric pipe (9) rear portion has the first internal thread hole section (9a) vertically, and this first internal thread hole section is connected on the anterior water side of described pedal washing valve (7); Described eccentric pipe (9) front portion is eccentric part (9b), have the second internal thread hole section (9c) in the leading section of this eccentric part, the axial line of this second internal thread hole section is parallel with described first internal thread hole section (9a); Described second internal thread hole section (9c) is communicated with the first internal thread hole section (9a) with bellmouth section (9e) by aperture section (9d) successively, and the axial line of aperture section (9d) is parallel with the second internal thread hole section (9c), and bellmouth section (9e) is large front little afterwards; Described eccentric part (9b) surface thereof has an air inlet (9f), eccentric part (9b) external surface is run through in the outer end of this air inlet, and near eccentric pipe (9) rear portion, and the step surface that described second internal thread hole section (9c) is connected with aperture section (9d) is run through in air inlet (9f) the inner;
Described water spout (10) rear portion is connecting portion (10a), thread segment on this connecting portion periphery is connected with described second internal thread hole section (9c), and the water hole of connecting portion (10a) center is communicated with described aperture section (9d); Described water spout (10) front portion is bent portion (10b), bent portion (10b) is provided with a described main jet water hole (P) vertically, this rear end, main jet water hole is communicated with the water hole of described connecting portion (10a) center, and the cross-sectional area of main jet water hole (P) reduces back to front gradually, and the leading section in main jet water hole is tabular structure; The water inlet of two described side hole for water sprayings (P ") rear end is communicated with the rear portion of main jet water hole (P); the water jet of side hole for water spraying (P ") front end runs through bent portion (10b) periphery, and has angle between the water jet of side hole for water spraying (P ") and main jet water hole (P) water jet.
3. be integrated with the pan of pedal washing valve according to claim 1, it is characterized in that: described sewage draining exit (5) is located at toilet bowl (3) front end or rear end, be provided with a splashproof arc section with this sewage draining exit with toilet bowl (3) top of holding, this splashproof arc section is towards the upper-end bent of sewage draining exit (5).
4. described in arbitrary according to claim 1-3, be integrated with the pan of pedal washing valve, it is characterized in that: the water jet cross section of described main jet water hole (P) and side hole for water spraying (P ") is mounting hole, and two side hole for water sprayings (P ") be symmetrical arranged about main jet water hole (P).
5. be integrated with the pan of pedal washing valve according to claim 4, it is characterized in that: side water jet (6a) width of described annular water chamber (6) is 1-3mm, annular water chamber (6) arc-shaped side below this side water jet is highly vertically 1-3mm, and annular water chamber (6) arc-shaped side of side water jet (6a) top is highly vertically 8-12mm.
6. be integrated with the pan of pedal washing valve according to claim 5, it is characterized in that: when described delivery port (4) is positioned at toilet bowl (3) rear end, this delivery port is directly communicated with described water inlet installing port (2), and described main jet water hole (P) is towards delivery port (4), and directly this delivery port is supplied water.
7. be integrated with the pan of pedal washing valve according to claim 5, it is characterized in that: when described delivery port (4) is positioned at toilet bowl (3) front end, this delivery port is communicated with described main jet water hole (P) by a water pipe, and this water pipe embeds left-half or the right half part of described annular water chamber (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520103174.0U CN204551672U (en) | 2015-02-12 | 2015-02-12 | Be integrated with the pan of pedal washing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520103174.0U CN204551672U (en) | 2015-02-12 | 2015-02-12 | Be integrated with the pan of pedal washing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204551672U true CN204551672U (en) | 2015-08-12 |
Family
ID=53826803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520103174.0U Active CN204551672U (en) | 2015-02-12 | 2015-02-12 | Be integrated with the pan of pedal washing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204551672U (en) |
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2015
- 2015-02-12 CN CN201520103174.0U patent/CN204551672U/en active Active
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Effective date of registration: 20160106 Address after: 400066 Chongqing Nan'an District haitangxi Street London Houjie 36 Building No. 20 6-6 (only for administrative office, communications) Patentee after: Chongqing cometary Environmental Protection Engineering Co. Ltd. Address before: 400021 Chongqing Jiangbei District, No. 1, No. 363 North China Merchants Jiangwan city 5 building 1-13-3 Patentee before: Chongqing Xinjie Environmental Protection Technology Co., Ltd. |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161228 Address after: 400020 Jiangbei District, Chongqing Jialing village, building 2, floor 5, No. thirteenth, No. three Patentee after: Chongqing Xinjie Environmental Protection Technology Co., Ltd. Address before: 400066 Chongqing Nan'an District haitangxi Street London Houjie 36 Building No. 20 6-6 (only for administrative office, communications) Patentee before: Chongqing cometary Environmental Protection Engineering Co. Ltd. |