A dustproof manifold and a solenoid valve for a hot runner having the manifold.

Abstract

This utility model discloses a dustproof manifold and a solenoid valve for a hot runner incorporating the manifold. The manifold body has a working channel, within which at least one filter and at least one limiting member are disposed. The limiting member restricts the filter's degree of freedom in a first direction. By placing a filter within the working channel of the manifold body, this utility model effectively prevents foreign objects in the airflow from entering the valve plate, significantly improving the stability and reliability of the valve plate. Furthermore, addressing the problem of filter screens easily falling off when directly embedded in the mounting groove in existing technologies, this utility model adds a limiting member within the working channel. This limiting member provides a stable limiting and fixing effect on the filter screen, ensuring that the filter screen maintains a reliable installation state under long-term airflow impact and equipment vibration conditions. This completely eliminates the risk of filter screen detachment and comprehensively improves the safety and practicality of the manifold body and valve plate in use.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic component technology, and in particular to a dustproof manifold and a solenoid valve for a hot runner having the manifold. Background Technology

[0002] A manifold is a fixed component that integrates multiple fluid channels into one unit. Also known as an air supply distribution area, valve plate, valve seat, or air passage plate, it is a key accessory for pneumatic components and is widely used in pneumatic control circuits. Its core function is to achieve centralized air supply and exhaust, while significantly saving installation space. The manifold has a through-type working channel, with its two ends connected to the valve plate and the actuator, respectively. In actual operating conditions, foreign objects inside the actuator can be carried into the valve plate by the airflow, causing varying degrees of damage to the internal components of the valve plate and severely affecting its sensitivity, accuracy, and service life.

[0003] To address the aforementioned technical challenges, manifold products with integrated filters have emerged in the market. For instance, Chinese utility model patent (authorization announcement number: CN212718192U) discloses a manifold for solenoid valves with dust-proof filtration function. This manifold includes a manifold body, filter-AB, and filter-P, with both filter-AB and filter-P mounted on the manifold body. This effectively solves the dust and cleanliness issues of valve products such as solenoid valve assemblies for hot runner molds. However, in the aforementioned prior art, a solenoid valve manifold with a dust-proof filtration function has its filter screen directly embedded in the mounting groove of the corresponding working port. This installation method has poor stability and is prone to causing the filter screen to fall off. Therefore, it is necessary to improve the existing technology. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that the filter screen installation method in the prior art has poor stability and is prone to filter screen falling off, and to propose a dustproof manifold and a solenoid valve for a hot runner with the manifold.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A dust collector includes a collector body with a working channel extending along a first direction through both ends of the collector body. Along the first direction, the working channel has a first port and a second port. The first port is used to connect a valve plate, and the second port is used to connect an actuator. At least one filter and at least one limiting member are disposed within the working channel. The filter and the limiting member are arranged along the first direction, and the limiting member can restrict the degree of freedom of the filter in the first direction.

[0006] Furthermore, a stepped portion is provided within the working channel, and along the first direction, the filter screen is positioned between the stepped portion and the limiting member.

[0007] Furthermore, the stepped portion has a stepped surface, the limiting member has a limiting end, the limiting end has a limiting end face, and along the first direction, the filter screen is limited between the stepped surface and the limiting end face.

[0008] Furthermore, the limiting member has a through hole that extends through both opposite ends of the limiting member along the first direction.

[0009] Furthermore, the limiting member is threadedly engaged with the peripheral wall of the working channel, the through hole is concentrically and coaxially engaged with the limiting member, and the cross-section of the peripheral wall of the through hole is polygonal.

[0010] Furthermore, the working channel is provided in multiple sets.

[0011] Furthermore, the peripheral sidewalls of the working channel can restrict the radial degree of freedom of the filter.

[0012] Furthermore, the number of filters is two or more, the limiting member is set in a one-to-one correspondence with the filter, and the filter and the limiting member are arranged alternately along the first direction.

[0013] A solenoid valve for hot runners includes a valve plate and a dustproof manifold, wherein the valve plate is connected to the manifold body, the valve plate has a working port, and the working port of the valve plate is connected to the first port.

[0014] The beneficial effects of this utility model after adopting the above structure are as follows: The dustproof manifold and the solenoid valve for hot runner with the manifold of this utility model include a manifold body, the manifold body having a through working channel, at least one filter screen and at least one limiting member being provided in the working channel, the filter screen and the limiting member being arranged along the first direction, and the limiting member at least restricting the degree of freedom of the filter screen in the first direction. By setting a filter screen in the working channel of the manifold body, this utility model can effectively block foreign objects in the airflow from entering the valve plate, reducing the wear and interference of foreign objects on the core components of the valve plate from the source, significantly improving the stability and reliability of the valve plate operation, and extending its service life. Meanwhile, addressing the issue of filter screens easily falling off when directly embedded in the mounting groove in existing technologies, this utility model further adds a limiting component in the working channel. The limiting component provides a stable limiting and fixing effect on the filter screen, ensuring that the filter screen maintains a reliable installation state under long-term airflow impact, equipment vibration, and other operating conditions. This completely solves the hidden danger of filter screen falling off, ensuring the continuous effectiveness of the filtration and dust prevention function, reducing the equipment failure and maintenance costs caused by filter screen falling off, and improving the overall safety and practicality of the manifold body and valve plate in use. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of the busbar of this utility model; Figure 2 This is an exploded view of the overall structure of the busbar of this utility model; Figure 3 This is a cross-sectional view of the busbar of this utility model; Figure 4 This is the utility model Figure 3 Enlarged schematic diagram of the structure at point A; Figure 5 This is a three-dimensional schematic diagram of the busbar body of this utility model; Figure 6 This is a three-dimensional schematic diagram of the limiting component of this utility model; Figure 7 This is a schematic diagram of the overall structure of the solenoid valve of this utility model; Figure 8 This is a cross-sectional view of the overall structure of the solenoid valve of this utility model; Figure 9 This is the utility model Figure 8Enlarged schematic diagram of the structure at point B.

[0017] Figures 1 to 9 The winning number is: 1. Combustion plate body; 2. Working channel; 21. First port; 22. Second port; 23. Step section; 231. Step surface; 3. Filter screen; 4. Limiting component; 41. Limiting end; 411. Limiting end face; 42. Through hole; 100. Valve plate; 101. Working port. Detailed Implementation

[0018] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0019] In the description of this utility model, it should be understood that if terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, the term "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] In this utility model, unless otherwise explicitly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact, or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0023] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this invention are for illustrative purposes only and do not represent the only possible implementation.

[0024] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] like Figures 1 to 6 As shown, a dustproof manifold includes a manifold body 1, the manifold body 1 having a working channel 2, the working channel 2 extending along a first direction of the manifold body 1, the working channel 2 passing through both ends of the manifold body 1, along the first direction, the working channel 2 having a first port 21 and a second port 22, the first port 21 being used to connect a valve plate 100, the second port 22 being used to connect an actuator, at least one filter screen 3 and at least one limiting member 4 being disposed in the working channel 2, the filter screen 3 and the limiting member 4 being arranged along the first direction, the limiting member 4 being able to restrict the degree of freedom of the filter screen 3 in the first direction.

[0026] Based on the above embodiments, this utility model provides a dustproof manifold, including a manifold body 1. The manifold body 1 has a through working channel 2, and at least one filter screen 3 and at least one limiting member 4 are disposed in the working channel 2. The filter screen 3 and the limiting member 4 are arranged along a first direction, and the limiting member 4 at least restricts the degree of freedom of the filter screen 3 in the first direction. By providing a filter screen 3 in the working channel 2 of the manifold body 1, this utility model can effectively block foreign objects in the airflow from entering the valve plate 100, reducing the wear and interference of foreign objects on the core components of the valve plate 100 from the source, significantly improving the stability and reliability of the valve plate 100, and extending its service life. Meanwhile, addressing the issue of filter screen 3 easily falling off when directly embedded in the mounting groove in existing technologies, this utility model further adds a limiting component 4 within the working channel 2. The limiting component 4 provides a stable limiting and fixing effect on the filter screen 3, ensuring that the filter screen 3 maintains a reliable installation state under long-term airflow impact and equipment vibration conditions. This completely solves the hidden danger of filter screen 3 falling off, ensuring the continuous effectiveness of the filtration and dust prevention function, and reducing the equipment failure and maintenance costs caused by filter screen 3 falling off. Overall, this improves the safety and practicality of the manifold body 1 and valve plate 100 working together. In this embodiment, the working channel 2 passes through both opposite ends of the manifold body 1, and the first port 21 and the second port 22 are formed on the opposite end faces of the manifold body 1, respectively.

[0027] In another preferred embodiment of this utility model, a stepped portion 23 is provided within the working channel 2, and the filter screen 3 is positioned between the stepped portion 23 and the limiting member 4 along the first direction. The stepped portion 23 has a stepped surface 231, and the limiting member 4 has a limiting end 41 with a limiting end face 411. Along the first direction, the filter screen 3 is positioned between the stepped surface 231 and the limiting end face 411. In this embodiment, as... Figure 4 As shown, the step portion 23 and the limiting member 4 restrict the degree of freedom of the filter screen 3 in the first direction. In this embodiment, the filter screen 3 is limited between the step surface 231 and the limiting end face 411. The step surface 231 and the limiting end face 411 limit the filter screen 3, thereby increasing the contact area between the filter screen 3 and the step portion 23 and the limiting member 4, and improving the reliability of limiting the filter screen 3.

[0028] As another preferred embodiment of this utility model, the limiting member 4 has a through hole 42, which extends through both opposite ends of the limiting member 4 along the first direction. In this embodiment, as... Figure 6 As shown, the through hole 42 is configured to provide a channel for the flow of fluid.

[0029] As another preferred embodiment of this utility model, the working channel 2 is provided in multiple sets. In this embodiment, the multiple sets of working channels 2 are used to adapt to multiple valve plates 100.

[0030] As another preferred embodiment of this utility model, the peripheral sidewall of the working channel 2 can restrict the radial degree of freedom of the filter screen 3. In this embodiment, the degree of freedom of the filter screen 3 in the first direction is restricted by the limiting member 4 and the step portion 23, and the radial degree of freedom of the filter screen 3 is restricted by the peripheral sidewall of the working channel 2, thus achieving stable and reliable installation of the filter screen 3.

[0031] In another preferred embodiment of this utility model, the number of filter screens 3 is two or more, and the limiting member 4 is provided in a one-to-one correspondence with the filter screen 3. The filter screens 3 and the limiting member 4 are arranged alternately along the first direction. In this embodiment, in order to improve the filtration effect, two or more filter screens 3 can be set. During installation, the filter screens 3 and the limiting member 4 are arranged alternately. Specifically, first, a filter screen 3 is placed on the step portion 23, then a limiting member 4 is screwed to the inner wall of the working channel 2, then another filter screen 3 is placed on the limiting member 4, and then the next limiting member 4 is screwed on. The installation can be completed by repeating this operation.

[0032] In another preferred embodiment of this utility model, the limiting member 4 is threadedly engaged with the peripheral wall of the working channel 2, the through hole 42 is concentrically and coaxially engaged with the limiting member 4, and the cross-section of the peripheral wall of the through hole 42 is polygonal. In this embodiment, as... Figure 4 As shown, the limiting member 4 and the working channel 2 are connected by a threaded structure. This connection method is not only simple to operate and eliminates the need for cumbersome assembly steps, effectively improving assembly efficiency; at the same time, the threaded fit has excellent structural stability, resisting the risk of loosening caused by airflow impact and equipment vibration during long-term use, ensuring that the connection remains firm and reliable, and further guaranteeing the stability of the filter screen 3 installation. In other preferred embodiments, the connection between the limiting member 4 and the working channel 2 can also be achieved through other adaptable structures. For example, when the limiting member 4 is specifically a retaining spring, a stable locking can be formed by using a pre-set groove in the working channel 2; other feasible connection methods will not be listed in detail here. In this embodiment, the cross-section of the peripheral sidewall of the through hole 42 is polygonal, allowing the limiting member 4 to be installed and removed through the through hole 42, and for force to be applied to the limiting member 4 through the through hole 42. For example, when the through hole 42 is a hexagonal structure, the limiting member 4 can be installed and removed using a hexagonal wrench.

[0033] like Figures 7 to 9As shown, a solenoid valve for hot runners includes a valve plate 100 and the aforementioned dustproof manifold. The valve plate 100 is connected to the manifold body 1. The valve plate 100 has a working port 101, which is connected to the first port 21.

[0034] Based on the above embodiments, this utility model also provides a solenoid valve for hot runners. The filter screen 3 can effectively prevent foreign objects in the airflow from entering the valve plate 100, thereby reducing the wear and interference of foreign objects on the core components of the valve plate 100 from the source, improving the stability and durability of the pneumatic solenoid valve. The entire hot runner solenoid valve has a reasonable structural design and is easy to use.

[0035] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this utility model.

Claims

1. A dustproof busbar comprising a busbar body (1), characterized in that: The manifold body (1) has a working channel (2) which extends along a first direction of the manifold body (1) and passes through both ends of the manifold body (1). Along the first direction, the working channel (2) has a first port (21) and a second port (22). The first port (21) is used to connect a valve plate (100), and the second port (22) is used to connect an actuator. At least one filter screen (3) and at least one limiting member (4) are provided in the working channel (2). The filter screen (3) and the limiting member (4) are arranged along the first direction, and the limiting member (4) can restrict the degree of freedom of the filter screen (3) in the first direction.

2. The dustproof busbar of claim 1, wherein: The working channel (2) is provided with a step (23), and along the first direction, the filter (3) is limited between the step (23) and the limiting member (4).

3. The dustproof busbar of claim 2, wherein: The step portion (23) has a step surface (231), the limiting member (4) has a limiting end (41), the limiting end (41) has a limiting end face (411), and along the first direction, the filter screen (3) is limited between the step surface (231) and the limiting end face (411).

4. The dustproof busbar of claim 1, wherein: The limiting member (4) has a through hole (42) that extends through both opposite ends of the limiting member (4) along the first direction.

5. The dustproof busbar of claim 4, wherein: The limiting member (4) is threadedly engaged with the peripheral wall of the working channel (2), the through hole (42) is coaxially engaged with the limiting member (4), and the cross-section of the peripheral wall of the through hole (42) is polygonal.

6. The dustproof busbar of claim 1, wherein: The working channel (2) is provided with multiple sets.

7. The dustproof busbar of claim 1, wherein: The peripheral sidewall of the working channel (2) can restrict the radial degree of freedom of the filter (3).

8. A dustproof manifold according to claim 1, characterized in that: The number of filters (3) is two or more, and the limiting member (4) is set in a one-to-one correspondence with the filter (3). The filter (3) and the limiting member (4) are arranged alternately along the first direction.

9. A solenoid valve for hot runners, characterized in that: Includes a valve plate (100) and a dustproof manifold as described in any one of claims 1 to 8, wherein the valve plate (100) is connected to the manifold body (1) in cooperation, and the valve plate (100) has a working port (101) that is connected to the first port (21).

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