CN219013457U - Pipe fitting connection structure and irrigation timing valve applied by same - Google Patents
Pipe fitting connection structure and irrigation timing valve applied by same Download PDFInfo
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- CN219013457U CN219013457U CN202223408156.2U CN202223408156U CN219013457U CN 219013457 U CN219013457 U CN 219013457U CN 202223408156 U CN202223408156 U CN 202223408156U CN 219013457 U CN219013457 U CN 219013457U
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Abstract
The utility model discloses a pipe fitting connection structure and an irrigation timing valve applied by the same, and the pipe fitting connection structure comprises: the four-way valve is used for connecting a first runner and a fourth runner of a water source in an external connection mode, and one of the second runner and the third runner is eccentrically arranged towards the first side of the four-way valve relative to the first runner; the water inlet end of the first water outlet pipe fitting is connected with the second flow passage; the water inlet end of the second water outlet pipe fitting is connected with the third flow passage; and a third solenoid valve mounted on a second side of the four-way valve opposite to the first side for opening or sealing the fourth flow passage. The utility model provides a pipe fitting connecting structure, which reduces the assembly space occupied by the installation of the pipe fitting connecting structure by arranging a second flow passage and/or a third flow passage eccentrically towards the first side of a four-way valve and arranging a third electromagnetic valve on the second side of the four-way valve.
Description
Technical Field
The utility model relates to the technical field of connecting pipes, in particular to a pipe connecting structure and an irrigation timing valve applied to the same.
Background
The irrigation timing valve is provided with at least one water inlet into which water supply flows and at least one water outlet from which water supply flows, an electromagnetic valve is arranged on a flow passage between the water inlet and the water outlet, the electromagnetic valve is controlled to be opened and closed at regular time through a control circuit, and a user realizes the function of timing irrigation by adjusting relevant parameters in the control circuit.
In the chinese patent of the utility model of the grant publication No. CN217272203U, there is disclosed a solenoid valve connecting pipe, which is provided by arranging a first connecting block and a third connecting block as a connecting structure at the periphery of a pipe interface, the first connecting block and the third connecting block are fixedly connected by a fastener, so that the reliability of the sealing connection between a water inlet pipe and a first water outlet pipe is increased. In the above patent, the connecting pipe is of a three-way structure having two water outlets. In order to meet the requirements of users, a water outlet needs to be additionally arranged, and how to optimize the pipe connection structure in the limited space of the irrigation timing valve is a problem to be solved by technicians.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems in the related art to some extent. To this end, the utility model proposes a pipe connection structure that reduces the installation space occupied by the pipe connection structure by arranging the second flow passage and/or the third flow passage eccentrically towards the first side of the four-way valve, and the third solenoid valve is arranged on the second side of the four-way valve.
The utility model also provides an irrigation timing valve with the pipe fitting connecting structure.
The technical scheme adopted by the utility model is as follows: there is provided a pipe connection structure including:
the four-way valve is used for connecting a first runner and a fourth runner of a water source in an external connection mode, the second runner and the third runner are perpendicular to the first runner, and one of the second runner and the third runner is eccentrically arranged towards the first side of the four-way valve relative to the first runner;
the water inlet end of the first water outlet pipe fitting is connected with the second flow passage;
the water inlet end of the second water outlet pipe fitting is connected with the third flow passage;
and a third solenoid valve mounted on a second side of the four-way valve opposite to the first side for opening or sealing the fourth flow passage.
After the structure is adopted, the second flow passage and/or the third flow passage are/is eccentrically arranged towards the first side of the four-way valve, and the third electromagnetic valve is arranged on the second side of the four-way valve so as to reduce the assembly space occupied by the installation of the pipe connecting structure.
According to one embodiment of the utility model, the axis a of the water outlet end of the first water outlet pipe, the axis b of the water outlet end of the second water outlet pipe and the axis c of the fourth runner are positioned on the same plane; and the second flow passage and/or the third flow passage are/is combined to be eccentrically arranged, so that water flow can generate a rotation acceleration effect in the first water outlet pipe fitting and/or the second water outlet pipe fitting, and the water outlet pressure of the water outlet end is improved.
According to one embodiment of the utility model, the water inlet end of the fourth flow channel is bent and extended towards the second side direction of the four-way valve to form a first extension pipe, and the valve core of the third electromagnetic valve is used for opening or sealing the pipe orifice of the first extension pipe; the third electromagnetic valve is used for independently controlling the opening and closing of the fourth flow passage.
According to one embodiment of the utility model, the first water outlet pipe fitting is provided with a first electromagnetic valve, and the first electromagnetic valve is used for opening or sealing a flow passage in the first water outlet pipe fitting; the first electromagnetic valve is used for independently controlling the opening and closing of the second flow passage.
According to one embodiment of the utility model, a second electromagnetic valve is arranged on the second water outlet pipe fitting and is used for opening or sealing a flow passage in the second water outlet pipe fitting; the second electromagnetic valve is used for independently controlling the opening and closing of the third flow passage.
According to one embodiment of the utility model, both the second flow channel and the third flow channel are arranged eccentrically with respect to the first flow channel towards a first side of the four-way.
According to one embodiment of the utility model, the included angle X1 between the axis a of the water outlet end of the first water outlet pipe (2) and the axis c of the fourth flow channel (14) is 0 degrees less than or equal to X1 degrees less than or equal to 180 degrees, and/or the included angle X2 between the axis b of the water outlet end of the second water outlet pipe (3) and the axis c of the fourth flow channel (14) is 0 degrees less than or equal to X2 degrees less than or equal to 180 degrees.
According to one embodiment of the utility model, the water outlet end of the fourth flow channel, the water outlet end of the first water outlet pipe fitting and the water outlet end of the second water outlet pipe fitting face in a consistent direction.
According to one embodiment of the utility model, the water outlet end of the second flow channel is in sealing connection with the water inlet end of the first water outlet pipe fitting, and/or the water outlet end of the third flow channel is in sealing connection with the water inlet end of the second water outlet pipe fitting.
According to one embodiment of the utility model, the first water outlet pipe fitting is provided with a first connecting part for being connected with the four-way joint, and/or the second water outlet pipe fitting is provided with a second connecting part for being connected with the four-way joint.
An irrigation timing valve comprising a timing valve housing and any of the above-described pipe connection structures mounted inside the timing valve housing.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective view of a pipe connection structure according to an embodiment of the present utility model;
FIG. 2 is a schematic view of a pipe connection structure according to an embodiment of the present utility model;
FIG. 3 is a schematic view of a four-way structure according to an embodiment of the present utility model;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is a top view of a four-way joint according to an embodiment of the present utility model;
FIG. 6 is a cross-sectional view taken along line B-B of FIG. 5;
FIG. 7 is an exploded view of a portion of a tubular connection according to an embodiment of the present utility model;
FIG. 8 is a perspective view of a first outlet pipe according to an embodiment of the present utility model;
FIG. 9 is a schematic structural view of a first water outlet pipe according to an embodiment of the present utility model;
FIG. 10 is a perspective view of an irrigation timing valve in an embodiment of the utility model;
FIG. 11 is a front view of an irrigation timing valve in an embodiment of the utility model;
FIG. 12 is a front view of an irrigation timing valve in accordance with another embodiment of the present utility model;
FIG. 13 is a front view of an irrigation timing valve in accordance with another embodiment of the present utility model;
fig. 14 is a front view of an irrigation timing valve in another embodiment of the utility model.
The reference numerals in the figures illustrate:
1. a four-way joint; 2. a first water outlet pipe fitting; 3. a second water outlet pipe fitting; 4. a first electromagnetic valve; 5. a second electromagnetic valve; 6. a third electromagnetic valve; 7. a timing valve housing; 8. a first seal ring; 9. a second seal ring;
11. a first flow passage; 12. a second flow passage; 13. a third flow passage; 14. a fourth flow passage; 15. a first extension pipe;
21. a first connection portion; 22. a second extension pipe;
31. and a second connecting part.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
As shown in fig. 1 to 9, in the present embodiment, there is disclosed a pipe connection structure including:
the four-way valve comprises a four-way valve 1, a first flow passage 11, a second flow passage 12 and a third flow passage 13, wherein the first flow passage 11 and the fourth flow passage 14 are concentrically arranged, the second flow passage 11 and the third flow passage 13 are perpendicular to the first flow passage 11, and one of the second flow passage 12 and the third flow passage 13 is eccentrically arranged towards the first side of the four-way valve 1 relative to the first flow passage 11;
the water inlet end of the first water outlet pipe fitting 2 is connected with the second flow passage 12;
the water inlet end of the second water outlet pipe fitting 3 is connected with the third flow passage 13;
a third solenoid valve 6 installed on a second side of the four-way valve 1 opposite to the first side for opening or sealing the fourth flow passage 14;
wherein, the axis a of the water outlet end of the first water outlet pipe fitting 2 and the axis b of the water outlet end of the second water outlet pipe fitting 3 are both on the same plane with the axis c of the fourth flow passage 14.
As shown in fig. 3 to 6, in the present embodiment, the four-way joint 1 adopts a concentric eccentric four-way joint 1 structure. Wherein the water inlet of the first runner 11 and the water outlet end of the fourth runner 14 are concentrically arranged, i.e. the axes of the water inlet and the water outlet end coincide. Similarly, the water outlet end of the second flow channel 12 and the water outlet end of the third flow channel 13 are concentrically arranged, wherein the four-way valve 1 has a cross-shaped structure as a whole.
Further, in this embodiment, the four-way joint 1 has two opposite sides, namely a first side and a second side, as shown in fig. 3 and 5, and fig. 3 is a side view of the first side of the four-way joint 1, and fig. 5 is a side view of the second side of the four-way joint 1.
Further, as shown in conjunction with fig. 5 and 6, in the present embodiment, the second flow passage 12 and the third flow passage 13 are each provided eccentrically toward the first side of the four-way joint 1 with respect to the first flow passage 11. The water outlet end of the second flow channel 12 is eccentrically disposed inside the first water outlet pipe 2, and is configured to generate a rotation acceleration effect in the first water outlet pipe 2, so as to increase the water outlet pressure of the water outlet end of the first water outlet pipe 2. Similarly, the water outlet end of the third flow channel 13 is eccentrically arranged inside the second water outlet pipe fitting 3 and is used for generating a rotation acceleration effect in the second water outlet pipe fitting 3 and improving the water outlet pressure of the water outlet end of the second water outlet pipe fitting 3.
Specifically, as shown in fig. 4 and fig. 6, the water inlet end of the fourth flow channel 14 is bent and extended toward the second side direction of the four-way valve 1 to form a first extension pipe 15, and the valve core of the third electromagnetic valve 6 is used for opening or sealing the pipe orifice of the first extension pipe 15.
Further, in the present embodiment, the first extension pipe 15 is formed by extending the inner sidewall near the first side in the four-way joint 1 toward the second side, and the first extension pipe 15 is communicated with the fourth flow channel 14 to form a bent pipe structure. In other words, the second extension pipe 22 may be regarded as a boss structure formed to be protruded inside the first water outlet pipe member 2, in which a gap exists between the outer circumference of the first extension pipe 15 and the inner wall of the four-way 1, so that the water flow from the first flow passage 11 can flow to the second flow passage 12 and the third flow passage 13 through the gap. The water flow from the first flow channel 11 needs to pass through the orifice of the first extension pipe 15 into the fourth flow channel 14, whereby the orifice of the first extension pipe 15 is the water inlet end of the first extension pipe 15.
Further, in the present embodiment, the spool of the third solenoid valve 6 is moved toward or away from the orifice of the first extension pipe 15, and when the spool is pressure-abutted against the orifice of the first extension pipe 15, the first extension pipe 15 is in a sealed state.
Specifically, the first water outlet pipe fitting 2 is provided with a first electromagnetic valve 4, and the first electromagnetic valve 4 is used for opening or sealing a flow passage in the first water outlet pipe fitting 2.
Further, as shown in fig. 8 and 9, the first water outlet pipe 2 has a bent pipe structure, that is, an included angle of ninety degrees is formed between the water inlet end and the water outlet end of the first water outlet pipe 2. The inner wall of the water outlet end of the first water outlet pipe 2 extends away from the water outlet end to form a second extension pipe 22, in other words, the second extension pipe 22 can be regarded as a boss structure formed by protruding inside the first water outlet pipe 2. Wherein, there is a clearance between the periphery of the second extension pipe 22 and the inner wall of the first water outlet pipe fitting 2, so that the water flow from the water inlet end of the first water outlet pipe fitting 2 can flow from the pipe orifice of the second extension pipe 22 to the water outlet end of the first water outlet pipe fitting 2 through the clearance.
Further, in the present embodiment, the spool of the first solenoid valve 4 is moved toward or away from the orifice of the second extension pipe 22, and when the spool is pressure-abutted against the orifice of the second extension pipe 22, the second extension pipe 22 is in a sealed state.
Specifically, the second water outlet pipe fitting 3 is provided with a second electromagnetic valve 5, and the second electromagnetic valve 5 is used for opening or sealing a flow passage in the second water outlet pipe fitting 3.
Further, in the present embodiment, the first water outlet pipe 2 and the second water outlet pipe 3 are symmetrical in structure.
Specifically, as shown in fig. 1 and 2, the second flow channel 12 and the third flow channel 13 are both disposed eccentrically toward the first side of the four-way joint 1 with respect to the first flow channel 11.
Specifically, an included angle X1 between an axis a of the water outlet end of the first water outlet pipe member 2 and an axis c of the fourth flow passage 14 is 0 ° -180 °, and/or an included angle X2 between an axis b of the water outlet end of the second water outlet pipe member 3 and an axis c of the fourth flow passage 14 is 0 ° -180 °, more specifically, X1 is preferably 30 °, 45 °, 90 °, 120 ° or 135 °, and X2 is preferably 30 °, 45 °, 90 °, 120 ° or 135 °.
Further, the water outlet end of the fourth flow channel 14, the water outlet end of the first water outlet pipe fitting 2 and the water outlet end of the second water outlet pipe fitting 3 face the same direction; namely, an included angle X1 between an axis a of the water outlet end of the first water outlet pipe fitting 2 and an axis c of the fourth flow channel 14 is 0 °, and an included angle X2 between an axis b of the water outlet end of the second water outlet pipe fitting 3 and the axis c of the fourth flow channel 14 is 0 °.
Specifically, the water outlet end of the second flow channel 12 is in sealing connection with the water inlet end of the first water outlet pipe fitting 2.
Further, referring to fig. 7, in this embodiment, the specific structure of sealing and plugging the water outlet end of the second flow channel 12 and the water inlet end of the first water outlet pipe fitting 2 is: the water outlet end of the second flow channel 12 adopts a plug structure, and the water inlet end of the first water outlet pipe fitting 2 adopts a socket structure matched with the plug structure. A first sealing ring 8 is arranged between the water outlet end of the second flow channel 12 and the first water outlet pipe fitting 2 and is used for realizing axial sealing of the two. A second sealing ring 9 is sleeved on the periphery of the plug structure and is used for realizing radial sealing between the water outlet end of the second flow passage 12 and the first water outlet pipe fitting 2.
Specifically, the water outlet end of the third flow channel 13 is in sealing connection with the water inlet end of the second water outlet pipe fitting 3.
Specifically, the first water outlet pipe 2 is provided with a first connection part 21 for connecting with the four-way joint 1, and the second water outlet pipe 3 is provided with a second connection part 31 for connecting with the four-way joint 1.
Further, as shown in fig. 7 and 8, in the present embodiment, the four-way joint 1 is provided with a connection structure corresponding to the first connection portion 21 and the second connection portion 31. The first and second connection parts 21 and 31 are connected with the connection structure by fasteners.
In another embodiment, as shown in connection with fig. 10 and 11, an irrigation timing valve is disclosed, comprising a timing valve housing 7 and a pipe connection structure as described in this embodiment, which is mounted inside said timing valve housing 7.
Further, in another embodiment, the water inlet end of the first runner 11 in the four-way valve 1 extends out of one side of the timing valve housing 7 for connecting with a water inlet pipe. The water outlet ends of the second flow channel 12, the third flow channel 13 and the fourth flow channel 14 in the four-way valve 1 extend out of the other side of the timing valve housing 7 and are used for being externally connected with a water outlet pipe. The irrigation state of the irrigation timing valve is adjusted by controlling the opening and closing of the first solenoid valve 4, the second solenoid valve 5, and the third solenoid valve 6 by a control circuit in the irrigation timing valve.
In another embodiment, as shown in fig. 12, the included angle X1 between the axis a of the water outlet end of the first water outlet pipe 2 and the axis c of the fourth flow channel 14 is 0 °, that is, the direction of the water outlet end of the first water outlet pipe 2 is consistent with that of the third flow channel 14, and the included angle X2 between the axis b of the water outlet end of the second water outlet pipe 3 and the axis c of the fourth flow channel 14 is 90 °.
In another embodiment, as shown in fig. 13, an included angle X1 between an axis a of the water outlet end of the first water outlet pipe 2 and an axis c of the fourth flow channel 14 is 90 °, and an included angle X2 between an axis b of the water outlet end of the second water outlet pipe 3 and an axis c of the fourth flow channel 14 is 90 °.
In another embodiment, as shown in fig. 14, an included angle X1 between an axis a of the water outlet end of the first water outlet pipe 2 and an axis c of the fourth flow channel 14 is 90 °, and an included angle X2 between an axis b of the water outlet end of the second water outlet pipe 3 and an axis c of the fourth flow channel 14 is 0 °.
In another embodiment, the included angle X1 between the axis a of the water outlet end of the first water outlet pipe 2 and the axis c of the fourth flow channel 14 is 30 °, 45 °, 90 °, 120 °, 135 ° or 180 °, and the included angle X2 between the axis b of the water outlet end of the second water outlet pipe 3 and the axis c of the fourth flow channel 14 is 30 °, 45 °, 90 °, 120 °, 135 ° or 180 °.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.
Claims (10)
1. A pipe connection structure, characterized by comprising:
the four-way valve comprises a four-way valve (1), a first flow passage (11) and a fourth flow passage (14) which are used for externally connecting a water source, wherein the second flow passage (12) and the third flow passage (13) are arranged vertically to the first flow passage (11), and one of the second flow passage (12) and the third flow passage (13) is eccentrically arranged towards the first side of the four-way valve (1) relative to the first flow passage (11);
the water inlet end of the first water outlet pipe fitting (2) is connected with the second flow passage (12);
the water inlet end of the second water outlet pipe fitting (3) is connected with the third flow passage (13);
and a third solenoid valve (6) mounted on a second side of the four-way valve (1) opposite to the first side for opening or sealing the fourth flow passage (14).
2. A pipe connection according to claim 1, wherein: the axis a of the water outlet end of the first water outlet pipe fitting (2), the axis b of the water outlet end of the second water outlet pipe fitting (3) and the axis c of the fourth flow passage (14) are positioned on the same plane.
3. A pipe connection according to claim 1, wherein: the water inlet end of the fourth flow passage (14) is bent and extended towards the second side direction of the four-way valve (1) to form a first extension pipe (15), and the valve core of the third electromagnetic valve (6) is used for opening or sealing a pipe orifice of the first extension pipe (15).
4. A pipe connection according to claim 1, wherein: the first water outlet pipe fitting (2) is provided with a first electromagnetic valve (4), and the first electromagnetic valve (4) is used for opening or sealing a flow passage in the first water outlet pipe fitting (2).
5. The pipe connection structure according to claim 4, wherein: the second water outlet pipe fitting (3) is provided with a second electromagnetic valve (5), and the second electromagnetic valve (5) is used for opening or sealing a flow passage in the second water outlet pipe fitting (3).
6. A pipe connection according to claim 1, wherein: the second flow channel (12) and the third flow channel (13) are both arranged eccentrically to the first flow channel (11) towards the first side of the four-way valve (1).
7. A pipe connection according to claim 2, wherein: an included angle X1 between an axis a of the water outlet end of the first water outlet pipe fitting (2) and an axis c of the fourth flow passage (14) is more than or equal to 0 degree and less than or equal to 180 degrees, and/or an included angle X2 between an axis b of the water outlet end of the second water outlet pipe fitting (3) and an axis c of the fourth flow passage (14) is more than or equal to 0 degree and less than or equal to 180 degrees.
8. The pipe connection structure according to claim 7, wherein: the water outlet end of the fourth flow passage (14), the water outlet end of the first water outlet pipe fitting (2) and the water outlet end of the second water outlet pipe fitting (3) face the same direction.
9. The pipe connection structure according to claim 8, wherein: the first water outlet pipe fitting (2) is provided with a first connecting part (21) used for being connected with the four-way joint (1), and/or the second water outlet pipe fitting (3) is provided with a second connecting part (31) used for being connected with the four-way joint (1).
10. An irrigation timing valve, characterized in that: comprising a timing valve housing (7) and a pipe connection according to any of claims 1-9, said pipe connection being mounted inside said timing valve housing (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223408156.2U CN219013457U (en) | 2022-12-16 | 2022-12-16 | Pipe fitting connection structure and irrigation timing valve applied by same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223408156.2U CN219013457U (en) | 2022-12-16 | 2022-12-16 | Pipe fitting connection structure and irrigation timing valve applied by same |
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| Publication Number | Publication Date |
|---|---|
| CN219013457U true CN219013457U (en) | 2023-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202223408156.2U Active CN219013457U (en) | 2022-12-16 | 2022-12-16 | Pipe fitting connection structure and irrigation timing valve applied by same |
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| Country | Link |
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| CN (1) | CN219013457U (en) |
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