CN220566706U - Sliding block and four-way valve - Google Patents

Sliding block and four-way valve Download PDF

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Publication number
CN220566706U
CN220566706U CN202321607105.4U CN202321607105U CN220566706U CN 220566706 U CN220566706 U CN 220566706U CN 202321607105 U CN202321607105 U CN 202321607105U CN 220566706 U CN220566706 U CN 220566706U
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China
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injection molding
base
hole
annular
tangent plane
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Active
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CN202321607105.4U
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邵巨灿
刘海波
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Zhejiang DunAn Hetian Metal Co Ltd
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Zhejiang DunAn Hetian Metal Co Ltd
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Priority to CN202321607105.4U priority Critical patent/CN220566706U/en
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Abstract

The utility model provides a sliding block and a four-way valve, wherein the sliding block comprises: the lining body comprises a base and a matrix, wherein two ends of the matrix are respectively provided with a first injection molding hole and a second injection molding hole which penetrate through; the injection molding shell comprises an injection molding main body, a first annular injection molding piece and a second annular injection molding piece; the area of the first injection molding hole is S1, the area of the second injection molding hole is S2, the lining body is provided with an inner tangent plane and an outer tangent plane which extend along the width direction of the substrate and are perpendicular to the bottom surface of the substrate, the inner tangent plane is tangent with the inner wall of the substrate, the outer tangent plane is tangent with the outer wall of the substrate, the volume of the first annular injection molding piece on one side of the outer tangent plane is V1, the volume of the second annular injection molding piece on the other side of the outer tangent plane, the area of the bottom surface of the substrate and the inner tangent plane is V2, the area of the top surface and the side surface of the first annular injection molding piece and the area of the top surface of the substrate, which are surrounded on the outer tangent plane, is S3, S1 is more than or equal to (V2/V1) S3, and S2 is more than or equal to (V2/V1) S3. The problem that the slider in the prior art is easy to crack after injection molding can be solved through the scheme.

Description

Sliding block and four-way valve
Technical Field
The utility model relates to the technical field of four-way valves, in particular to a sliding block and a four-way valve.
Background
The slider of the four-way valve in the prior art, inside lining body and injection molding shell are through integrative injection molding, because when moulding plastics, the flow through inside lining body flow hole is little, flow through inside lining body external edge and between the mould is big, the injection molding fluid through between inside lining body external edge and the mould flows into the region of inside lining body below and the injection molding fluid through inside lining body flow hole and merges, because the flow through distance of above-mentioned two injection molding fluids is different, there is the difference in temperature, thereby appear the condition that produces the crackle after the junction cooling.
Disclosure of Invention
The utility model provides a sliding block and a four-way valve, which are used for solving the problem that the sliding block in the prior art is easy to crack after injection molding.
In order to solve the above-mentioned problems, according to an aspect of the present utility model, there is provided a slider comprising: the lining body comprises a base and a matrix, wherein the matrix is arranged around the outer periphery of the base, and two ends of the matrix are respectively provided with a first injection molding hole and a second injection molding hole which penetrate through; the injection molding shell is coated on the base and the matrix through injection molding, and comprises an injection molding main body, a first annular injection molding piece and a second annular injection molding piece, wherein the inner wall of the injection molding main body is attached to the outer wall of the base and the top surface of the matrix, the outer wall of the matrix is attached to the first annular injection molding piece, and the bottom surface of the matrix is attached to the inner wall of the second annular injection molding piece; the area of the first injection molding hole is S1, the area of the second injection molding hole is S2, the lining body is provided with an inner tangent plane and an outer tangent plane, the inner tangent plane and the outer tangent plane extend along the width direction of the substrate and are perpendicular to the bottom surface of the substrate, the inner tangent plane is tangent with the inner wall of the substrate, the outer tangent plane is tangent with the outer wall of the substrate, the volume of the first annular injection molding piece on one side of the outer tangent plane is V1, the volume of the second annular injection molding piece in the area between the other side of the outer tangent plane, the bottom surface of the substrate and the inner tangent plane is V2, the area enclosed by the top surface and the side surface of the first annular injection molding piece and the top surface of the substrate on the outer tangent plane is S3, S1 is more than or equal to (V2/V1) S3, and S2 is more than or equal to (V2/V1) S3.
Further, S1 is larger than or equal to 0.7S3, and S2 is larger than or equal to 0.7S3.
Further, S1 is larger than or equal to 0.9S3, and S2 is larger than or equal to 0.9S3.
Further, the first injection molding hole and the second injection molding hole each include at least one flow hole.
Further, the shape of the flow hole is a waist-shaped hole or a round hole or a square hole or a polygonal hole.
Further, the base body is provided with a plurality of injection molding grooves which are distributed at intervals along the outer periphery of the base body.
Further, the base member includes annular plate body, first plate body and second plate body, and the outer periphery of annular plate body and base is connected, and first plate body, second plate body set up respectively at the both ends of annular plate body, and first plate body has first hole of moulding plastics, and the second plate body has the hole of moulding plastics of second.
Further, the bottom surface of the injection molding main body, the first annular injection molding inner wall and the region between the top surfaces of the second annular injection molding form a clamping cavity, and the base body is embedded in the clamping cavity.
Further, the base and the base are of an integral structure, and both the base and the base are made of metal or alloy.
Further, the sliding block further comprises a supporting pin, the supporting pin is arranged in the cavity of the base, and two ends of the supporting pin are respectively connected with two opposite inner walls of the base.
According to another aspect of the present utility model, there is provided a four-way valve including the slider described above.
By applying the technical scheme of the utility model, the utility model provides a sliding block, which comprises the following components: the lining body comprises a base and a matrix, wherein the matrix is arranged around the outer periphery of the base, and two ends of the matrix are respectively provided with a first injection molding hole and a second injection molding hole which penetrate through; the injection molding shell is coated on the base and the matrix through injection molding, and comprises an injection molding main body, a first annular injection molding piece and a second annular injection molding piece, wherein the inner wall of the injection molding main body is attached to the outer wall of the base and the top surface of the matrix, the outer wall of the matrix is attached to the first annular injection molding piece, and the bottom surface of the matrix is attached to the inner wall of the second annular injection molding piece; the area of the first injection molding hole is S1, the area of the second injection molding hole is S2, the lining body is provided with an inner tangent plane and an outer tangent plane, the inner tangent plane and the outer tangent plane extend along the width direction of the substrate and are perpendicular to the bottom surface of the substrate, the inner tangent plane is tangent with the inner wall of the substrate, the outer tangent plane is tangent with the outer wall of the substrate, the volume of the first annular injection molding piece on one side of the outer tangent plane is V1, the volume of the second annular injection molding piece in the area between the other side of the outer tangent plane, the bottom surface of the substrate and the inner tangent plane is V2, the area enclosed by the top surface and the side surface of the first annular injection molding piece and the top surface of the substrate on the outer tangent plane is S3, S1 is more than or equal to (V2/V1) S3, and S2 is more than or equal to (V2/V1) S3. According to the scheme, the ratio of the area S1 of the first injection hole to the area S2 of the second injection hole to the cross section S3 formed by the top surface and the side surface of the first annular injection piece and the top surface of the base body on the outer tangent plane is limited in the range of the volume ratio, so that in the injection molding process, after the injection molding fluid flows through the area S1 of the first injection hole, the area S2 of the second injection hole and the cross section S3, the temperature of the injection molding fluid at the junction is approximately the same, cracks are not easy to generate, and the junction of the injection molding fluid is not near the first injection hole and the second injection hole but near the outer edge of the base body, so that even if the cracks are generated, the cracks can not extend to the inner cavity of the sliding block, and leakage is avoided. By utilizing the scheme, the problem that the sliding block in the prior art is easy to crack after injection molding is effectively solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 shows a schematic diagram of a slider provided by an embodiment of the present utility model;
FIG. 2 is a schematic view of the liner body of FIG. 1;
FIG. 3 shows a top view of the slider of FIG. 1;
FIG. 4 shows a cross-sectional view of C-C of FIG. 3;
FIG. 5 shows a cross-sectional view of the slider of FIG. 1;
FIG. 6 is a schematic diagram showing the circulation of injection fluid during injection molding of a slider provided by an embodiment of the present utility model;
fig. 7 is a schematic structural view of a liner body according to another embodiment of the present utility model.
Wherein the above figures include the following reference numerals:
10. a liner body; 11. a base; 12. a base; 121. a first injection molding hole; 122. a second injection molding hole; 123. an annular plate body; 124. a first plate body; 125. a second plate body; 126. injection molding the groove;
20. injection molding of the shell; 21. injection molding the main body; 22. a first annular injection molding member; 23. a second annular injection molding;
30. a supporting pin;
40. cutting the inner surface;
50. and (5) cutting the surface.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1 to 6, an embodiment of the present utility model provides a slider including:
the lining body 10, the lining body 10 comprises a base 11 and a matrix 12, the matrix 12 is arranged around the outer periphery of the base 11, and two ends of the matrix 12 are respectively provided with a first injection molding hole 121 and a second injection molding hole 122 which penetrate through;
the injection molding shell 20, wherein the injection molding shell 20 coats the base 11 and the base 12 through injection molding, the injection molding shell 20 comprises an injection molding main body 21, a first annular injection molding piece 22 and a second annular injection molding piece 23, the inner wall of the injection molding main body 21 is attached to the outer wall of the base 11 and the top surface of the base 12, the outer wall of the base 12 is attached to the first annular injection molding piece 22, and the bottom surface of the base 12 is attached to the inner wall of the second annular injection molding piece 23;
wherein the area of the first injection hole 121 is S1, the area of the second injection hole 122 is S2, the liner body 10 has an inner tangential surface 40 and an outer tangential surface 50, the inner tangential surface 40 and the outer tangential surface 50 extend along the width direction of the substrate 12 and are perpendicular to the bottom surface of the substrate 12, the inner tangential surface 40 is tangential to the inner wall of the substrate 12, the outer tangential surface 50 is tangential to the outer wall of the substrate 12, the volume of the first annular injection piece 22 on one side of the outer tangential surface 50 is V1, the volume of the second annular injection piece 23 on the other side of the outer tangential surface 50, the area between the bottom surface of the substrate 12 and the inner tangential surface 40 is V2, the area enclosed by the top surface and the side surface of the first annular injection piece 22 and the top surface of the substrate 12 on the outer tangential surface 50 is S3, S1 is equal to (V2/V1) S3, and S2 is equal to (V2/V1) S3.
By adopting the scheme, the ratio of the area S1 of the first injection hole to the area S2 of the second injection hole to the cross section S3 formed by the top surface and the side surface of the first annular injection piece 22 and the top surface of the base body 12 on the outer tangent plane is limited in the range of the volume ratio, so that after the injection molding process, the injection molding fluid flows through the area S1 of the first injection hole, the area S2 of the second injection hole and the cross section S3, the temperature of the injection molding fluid at the junction is approximately the same, so that cracks are not easy to generate, and the junction of the injection molding fluid is not near the first injection hole and the second injection hole, but near the outer edge of the base body, even if the cracks are generated, the cracks can not extend to the inner cavity of the sliding block, thereby avoiding leakage. By utilizing the scheme, the problem that the sliding block in the prior art is easy to crack after injection molding is effectively solved.
It should be noted that: the first injection molding hole 121 and the second injection molding hole 122 are disposed along the length direction of the base 12 and are respectively located at both ends of the base 11.
In the injection molding process, the relation among injection molding volume, flow rate, flow area and flow time is as follows: the injection volume is equal to the product of flow rate, flow area and flow time.
As shown in fig. 3 to 5, the top surface and the side surfaces of the first annular injection molding piece 22 and the top surface of the base body 12 enclose a cross-sectional area S3, s3=b×h on the outer tangential surface, wherein B is the width of the slide block on the outer tangential surface 50; h is the height of the top surface of the first annular injection molding 22 from the top surface of the base 12.
Specifically, S1 is larger than or equal to 0.7S3, and S2 is larger than or equal to 0.7S3. By arranging in this way, the area of the injection fluid flowing through the first injection hole 121 and the area of the second injection hole 122 are increased, so that the junction of the injection fluid is not near the first injection hole and the second injection hole, but near the outer edge of the substrate, and even if cracks are generated, the cracks cannot extend to the inner cavity of the sliding block, thereby avoiding leakage.
Further, S1 is not less than 0.9S3 and S2 is not less than 0.9S3. This arrangement further ensures that the junction of the injection fluid is not near the first injection hole and the second injection hole, but near the outer edge of the substrate, so that even if a crack is generated, the crack does not extend to the slider cavity, thereby avoiding leakage.
In the present embodiment, each of the first injection molding hole 121 and the second injection molding hole 122 includes at least one flow hole. In this embodiment, the first injection molding hole 121 may include one flow hole, two flow holes, or a plurality of flow holes, and the plurality of flow holes are disposed on the substrate 12 at intervals; similarly, the second injection molding hole 122 may also include one circulation hole, two circulation holes or a plurality of circulation holes, and the first injection molding hole 121 and the second injection molding hole 122 may be manufactured according to actual requirements.
Wherein the shape of the flow hole is a waist-shaped hole or a round hole or a square hole or a polygonal hole. Thus, the shape of the flow hole can be designed into a waist-shaped hole or a round hole or a square hole or a polygonal hole according to actual requirements, wherein the shape of the flow hole can also be a special-shaped hole (irregular hole). In this embodiment, as shown in fig. 2, the shape of the flow hole is a waist-shaped hole, so that the shape of the base 12 is more closely fitted.
Specifically, the base 12 has a plurality of injection molded grooves 126, the plurality of injection molded grooves 126 being spaced apart along the outer periphery of the base 12. The plurality of injection molding grooves 126 are distributed at intervals along the outer periphery of the base body 12, so that the limiting effect can be achieved in the injection molding process, the lining body 10 can be further coated by injection molding fluid, and the injection molding effect is improved.
In this embodiment, the base 12 includes an annular plate 123, a first plate 124 and a second plate 125, where the annular plate 123 is connected to the outer periphery of the base 11, the first plate 124 and the second plate 125 are respectively disposed at two ends of the annular plate 123, the first plate 124 has a first injection hole 121, and the second plate 125 has a second injection hole 122. The annular plate body 123 is arranged, can be matched with the shape of the base 11, and is convenient to connect with the outer periphery of the base 11; providing the first plate 124 facilitates providing the first injection holes 121; the second plate 125 is provided to facilitate the provision of the second injection holes 122.
Specifically, the region between the bottom surface of the injection molding body 21, the inner wall of the first annular injection molding member 22, and the top surface of the second annular injection molding member 23 forms a clamping cavity, and the base body 12 is embedded in the clamping cavity. The base 12 can be limited by the formed clamping cavity.
In the present embodiment, the base 11 and the base 12 are of a unitary structure, and both the base 11 and the base 12 are made of metal or alloy. The base 11 and the base 12 are arranged into an integral structure, so that the processing is convenient, and the production cost is reduced; in this embodiment, the base 11 and the base 12 are made of stainless steel, so that the melting point of stainless steel is higher than the temperature of the injection fluid during injection molding, and thus the base 11 and the base 12 are not melted during injection molding.
The sliding block further comprises a supporting pin 30, the supporting pin 30 is arranged in the cavity of the base 11, and two ends of the supporting pin 30 are respectively connected with two opposite inner walls of the base 11. The two ends of the supporting pin 30 are respectively connected with the two opposite inner walls of the base 11, so that the base 11 can not deform in the injection molding process, and the positioning function can be realized.
As shown in fig. 7, another embodiment of the present utility model provides a slider, in which two flow holes are formed in a shape of a waist hole.
In another embodiment of the present utility model, a four-way valve is provided, which includes the slider described above. By adopting the scheme, the ratio of the area S1 of the first injection hole, the area S2 of the second injection hole to the cross section S3 formed by the top surface and the side surface of the first annular injection piece and the top surface of the base body on the outer tangent plane is limited in the range of the volume ratio, so that in the injection molding process, after the injection molding fluid flows through the area S1 of the first injection hole, the area S2 of the second injection hole and the cross section S3, the temperature of the injection molding fluid at the junction is approximately the same, so that cracks are not easy to generate, and the junction of the injection molding fluid is not near the first injection hole and the second injection hole, but is close to the outer edge of the base body, even if the cracks are generated, the cracks can not extend to the inner cavity of the sliding block, and leakage is avoided. By utilizing the scheme, the service life of the four-way valve can be prolonged.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (11)

1. A slider, comprising:
the lining body (10), the lining body (10) comprises a base (11) and a matrix (12), the matrix (12) is arranged around the outer periphery of the base (11), and two ends of the matrix (12) are respectively provided with a first injection molding hole (121) and a second injection molding hole (122) which penetrate through;
the injection molding shell (20), the injection molding shell (20) coats the base (11) and the base body (12) through injection molding, the injection molding shell (20) comprises an injection molding main body (21), a first annular injection molding piece (22) and a second annular injection molding piece (23), the inner wall of the injection molding main body (21) is attached to the outer wall of the base (11) and the top surface of the base body (12), the outer wall of the base body (12) is attached to the first annular injection molding piece (22), and the bottom surface of the base body (12) is attached to the inner wall of the second annular injection molding piece (23);
the area of the first injection molding hole (121) is S1, the area of the second injection molding hole (122) is S2, the lining body (10) is provided with an inner tangent plane (40) and an outer tangent plane (50), the inner tangent plane (40) and the outer tangent plane (50) extend along the width direction of the matrix (12) and are perpendicular to the bottom surface of the matrix (12), the inner tangent plane (40) and the inner wall of the matrix (12) are tangent, the outer tangent plane (50) and the outer wall of the matrix (12) are tangent, the volume of the first annular injection molding piece (22) located on one side of the outer tangent plane (50) is V1, the volume of the area between the bottom surface of the matrix (12) and the inner tangent plane (40) is V2, and the area of the top surface and the side surface of the first annular injection molding piece (22) and the top surface of the matrix (12) on the outer tangent plane (50) is S3S 1/V2S 2/S3/S2.
2. The slider of claim 1 wherein S1 is greater than or equal to 0.7S3 and S2 is greater than or equal to 0.7S3.
3. The slider of claim 1 wherein S1 is greater than or equal to 0.9S3 and S2 is greater than or equal to 0.9S3.
4. The slider of claim 1 wherein the first injection molded hole (121) and the second injection molded hole (122) each comprise at least one flow hole.
5. The slider of claim 4 wherein the flow aperture is in the shape of a kidney-shaped aperture or a round aperture or a square aperture or a polygonal aperture.
6. The slider of claim 1 wherein said base (12) has a plurality of injection molded grooves (126), a plurality of said injection molded grooves (126) being spaced along an outer periphery of said base (12).
7. The sliding block according to claim 1, wherein the base body (12) comprises an annular plate body (123), a first plate body (124) and a second plate body (125), the annular plate body (123) is connected with the outer periphery of the base (11), the first plate body (124) and the second plate body (125) are respectively arranged at two ends of the annular plate body (123), the first plate body (124) is provided with the first injection molding hole (121), and the second plate body (125) is provided with the second injection molding hole (122).
8. Slider according to claim 1, characterized in that the region between the bottom surface of the injection-molded body (21), the inner wall of the first annular injection-molded part (22) and the top surface of the second annular injection-molded part (23) forms a clamping cavity, in which the base body (12) is embedded.
9. Slider according to claim 1, characterized in that the base (11) and the base (12) are of unitary construction, the base (11) and the base (12) being made of metal or alloy.
10. The slider of claim 1 further comprising a stay pin (30), the stay pin (30) being disposed within the cavity of the base (11), the stay pin (30) being connected at both ends to opposite inner walls of the base (11), respectively.
11. A four-way valve, characterized in that it comprises a slider according to any one of claims 1 to 10.
CN202321607105.4U 2023-06-21 2023-06-21 Sliding block and four-way valve Active CN220566706U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321607105.4U CN220566706U (en) 2023-06-21 2023-06-21 Sliding block and four-way valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321607105.4U CN220566706U (en) 2023-06-21 2023-06-21 Sliding block and four-way valve

Publications (1)

Publication Number Publication Date
CN220566706U true CN220566706U (en) 2024-03-08

Family

ID=90089055

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321607105.4U Active CN220566706U (en) 2023-06-21 2023-06-21 Sliding block and four-way valve

Country Status (1)

Country Link
CN (1) CN220566706U (en)

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