A detection device and filter therefor

Abstract

The utility model discloses a detection device and filter thereof, filter includes filter main part, filter subassembly, first sealing member and first locking piece, when using, can butt joint on detection device directly with the connecting end of filter main part to adopt first locking piece and lock, can realize the installation of filter, can cancel the connecting pipeline in prior art, can also avoid the influence of the user in using raw material belt or the impurity remaining in connecting pipeline to detection device when being convenient for user installation uses. After filter installation, the fluid passage in filter main part can be communicated with the fluid inlet of detection device, and the filter subassembly is located between the fluid passage of filter main part and the fluid inlet of detection device, and the first sealing member is sealed and butt joint between filter main part and detection device, can prevent the fluid leakage of connecting place, can also reduce the risk of fluid leakage when realizing the installation of filter and detection device between the portable.

Description

Technical Field

[0001] This utility model relates to the field of detection technology, specifically to a detection device and its filter. Background Technology

[0002] In flow detection, filters are typically used to filter the fluid to reduce the impact of impurities in the fluid on the detection equipment over long-term operation. In existing technologies, filters are generally externally installed in connecting pipes, which then connect to the controller or flow meter. Because there is a connecting pipe between the filter and the detection device, impurities can easily remain in the connecting pipe during initial installation or filter replacement, or when wrapping the connector with PTFE tape. Combined with dust already present in the connecting pipe, and crystallization caused by gas seeping into the connecting pipe during use, these impurities can easily enter the controller or flow meter, leading to valve or capillary blockage. Furthermore, the connector between the filter and the detection device in existing technologies is located between the filter and the detection device, requiring side installation and disassembly, which is inconvenient for users. After repeated installation and disassembly, repeated wear at the connector can also lead to fluid leakage. Utility Model Content

[0003] In order to overcome at least one of the technical problems existing in the prior art, the purpose of this utility model is to provide a filter that is easy for users to install and use, can avoid the influence of impurities left in the user's use of raw material tape or in the connecting pipeline on the detection device, and can also reduce the risk of fluid leakage.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A filter includes a filter body, a filter assembly, a first sealing member, and a first locking member. The filter body has a fluid channel inside, the filter assembly is installed in the fluid channel, the first sealing member is installed at the connecting end of the filter body, and the first locking member is used to lock and fix the filter body to the detection device. When the filter body is locked to the detection device, the first sealing member seals and abuts against the filter body and the detection device.

[0005] Compared with existing technologies, this utility model has at least the following beneficial effects: This filter can be directly installed on detection devices such as controllers and flow meters. During use, the connecting end of the filter body can be directly abutted against the detection device and locked using the first locking element, thus achieving filter installation. This eliminates the need for connecting pipes in existing technologies, facilitating user installation and use while preventing the influence of impurities left in the connecting pipes or when using PTFE tape on the detection device. After installation, the fluid channel within the filter body can communicate with the fluid inlet of the detection device. The filter assembly is located between the fluid channel of the filter body and the fluid inlet of the detection device, achieving fluid filtration. The first sealing element seals against the connection between the filter body and the detection device, preventing fluid leakage at the joint. This facilitates convenient installation between the filter and the detection device while reducing the risk of fluid leakage.

[0006] In the aforementioned filter, the first locking member is a threaded connector, and the filter body is provided with a connecting hole that penetrates the filter body. Multiple connecting holes are distributed circumferentially along the fluid channel. The first locking member is threadedly connected to the connecting hole and locked to the detection device.

[0007] The filter described above has an annular groove at the connecting end of the filter body, the first sealing element is engaged in the annular groove, and a plurality of connecting holes are distributed around the outer periphery of the annular groove.

[0008] The filter assembly described above is installed within the fluid channel via a second locking element.

[0009] The filter described above has a fluid channel with a threaded section and a locking step. The second locking member is a threaded connector connected to the threaded section to press the filter assembly onto the locking step.

[0010] The filter assembly described above includes a filter element and a second seal, with the filter element located between the second locking element and the second seal.

[0011] The filter assembly described above further includes a filter screen disposed between the filter element and the second seal.

[0012] The filter element in the above-mentioned filter is a sintered stainless steel filter element.

[0013] This invention also provides a detection device, including the above-mentioned filter, which has at least all the beneficial effects that the above-mentioned filter can bring.

[0014] The aforementioned detection device also includes a VCR connector, a controller, and / or a flow meter, wherein the filter is installed on the controller, the flow meter, or the VCR connector.

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the filter according to an embodiment of the present invention; Figure 2 This is one of the exploded views of the filter according to an embodiment of the present invention; Figure 3 This is a second exploded view of the filter according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of one of the detection devices according to an embodiment of the present utility model.

[0017] The reference numerals are as follows: 100 Filter, 110 Filter body, 111 Connecting end, 1111 Annular groove, 112 Fluid channel, 1121 Threaded section, 1122 Locking step, 113 Connecting hole, 120 Filter assembly, 121 Filter element, 122 Filter screen, 123 Second seal, 130 First seal, 140 First locking element, 150 Second locking element, 200 VCR connector, 300 Controller, 400 Flow meter. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below, with reference to Figures 1 to 3 An embodiment of this utility model provides a filter 100, including a filter body 110, a filter assembly 120, a first sealing member 130, and a first locking member 140.

[0019] The filter body 110 can be square or cylindrical, specifically adapted to the shape of the controller 300 and flow meter 400, etc. For example, in this embodiment, the filter 100 is directly installed on the controller 300, and the controller 300 is square, so the filter body 110 also adopts a square structure. A fluid channel 112 is provided inside the filter body 110, and the filter assembly 120 is installed in the fluid channel 112. When the filter 100 is installed on the detection device, the fluid channel 112 is connected to the fluid inlet of the detection device, and the filter assembly 120 is located between the fluid channel 112 and the fluid inlet. The first end of the filter body 110 is a connecting end 111. The connecting end 111 of the filter body 110 has an annular groove 1111. The first sealing member 130 is an O-ring, which is snapped into the annular groove 1111 and protrudes outward from the end face of the connecting end 111 of the filter body 110. When the filter body 110 is locked onto the detection device by the first locking member 140, the first sealing member 130 is pressed and abuts against the filter body 110 and the detection device to achieve a seal and prevent fluid leakage.

[0020] This filter 100 can be directly installed on detection devices such as the controller 300 and flow meter 400. During use, the connection end 111 of the filter body 110 can be directly abutted against the detection device and locked using the first locking member 140. This eliminates the need for connecting pipes in existing technologies, facilitating user installation and preventing the impact of impurities from the use of PTFE tape or remaining in the connecting pipes on the detection device. After installation, the fluid channel 112 within the filter body 110 communicates with the fluid inlet of the detection device. The filter assembly 120 is located between the fluid channel 112 of the filter body 110 and the fluid inlet of the detection device, achieving fluid filtration. The first sealing member 130 seals the connection between the filter body 110 and the detection device, preventing fluid leakage at the connection point. This facilitates convenient installation of the filter 100 and the detection device while reducing the risk of fluid leakage.

[0021] Furthermore, the first locking member 140 is a threaded connection such as a bolt. The filter body 110 is provided with a connecting hole 113 penetrating the filter body 110. Multiple connecting holes 113 are distributed circumferentially along the fluid channel 112. During installation, after aligning the connecting end 111 of the filter body 110 with the end of the detection device, the threaded connection can be screwed into the connecting hole 113 from the second end of the filter body 110 and locked onto the detection device, thus achieving the locking installation of the filter body 110. In this filter 100, the position for locking the filter 100 is offset from the position for connecting the filter 100 to the fluid channel 112. Therefore, the connection position will not be damaged during installation and disassembly, reducing the risk of leakage. This filter 100 allows the threaded connection to be screwed into from the end of the filter body 110, which is more convenient for users compared to the side-operation method in the prior art. Furthermore, multiple connecting holes 113 are distributed around the outer periphery of the annular groove 1111. The annular groove 1111 and the first sealing element 130 engaged inside it can protect the surrounding internal area. During multiple installations and disassemblies, the engagement between the threaded connector and the connecting hole 113 is located on the outer periphery of the annular groove 1111 and the first sealing element 130. Therefore, it will not cause wear or other damage to the internal connection position and the sealing connection position, and it is not easy for fluid leakage to occur under long-term use.

[0022] Furthermore, the filter assembly 120 is installed within the fluid channel 112 via the second locking member 150. Even further, the fluid channel 112 has a threaded section 1121 and a locking step 1122. The inner diameter of the threaded section 1121 is smaller than the inner diameter at other locations in the fluid channel 112, and the locking step 1122 is closer to the connection end 111 of the filter body 110. Furthermore, the second locking member 150 is a threaded connector such as a screw with a hole. The filter assembly 120 includes a filter element 121, a filter screen 122, and a second seal 123. The second seal 123, the filter screen 122, and the filter element 121 are distributed sequentially from the first end to the second end of the filter body 110; that is, the second seal 123 is closer to the locking step 1122. When installing the filter assembly 120, the second seal 123, filter screen 122, and filter element 121 are sequentially placed into the fluid channel 112, and then the second locking member 150 is screwed in. As the second locking member 150 is screwed in along the threaded section 1121, it presses the filter element 121, filter screen 122, and second seal 123 against the locking step 1122. This ensures a circumferential seal for the filter assembly 120, facilitates locking, installation, and replacement, and improves the connection stability of the filter assembly 120 within the fluid channel 112. Furthermore, the pressing method allows for more flexible adjustment of the particle size and combination of the filter screen 122 according to requirements. Furthermore, the filter element 121 can be made of sintered stainless steel, which, combined with the precision filter screen 122, can further improve the filtration effect. Furthermore, the second seal 123 can be made of a PTFE ring or similar structure.

[0023] An embodiment of this utility model also provides a detection device, including the filter 100 described above, which has at least all the beneficial effects that the filter 100 can bring.

[0024] Furthermore, the detection device can be a module that mates with the filter 100 and the VCR connector 200, with the VCR connector 200 installed at the second end of the filter body 110. In use, this module can be directly installed onto the controller 300 or the flow meter 400.

[0025] Furthermore, the detection device can be a module that works with the filter 100 and the controller 300, with the connection end 111 of the filter body 110 locked to the controller 300 by the first locking member 140. In use, this module can be directly installed on the flow meter 400.

[0026] Furthermore, the detection device can be a module that works with the filter 100 and the flow meter 400, with the connection end 111 of the filter body 110 locked to the flow meter 400 by the first locking member 140.

[0027] Furthermore, referring to Figure 4The detection device can also be a module consisting of filter 100, VCR connector 200, controller 300 and flow meter 400. VCR connector 200 has two sets, one set is connected to the second end of filter body 110 and the other set is connected to flow meter 400. Filter 100, controller 300 and flow meter 400 are connected in sequence. The connection end 111 of filter body 110 is locked to controller 300 by first locking member 140.

[0028] Of course, in other embodiments, the detection device can also be in other combinations to meet different application scenarios. When in use, only the length of the first locking member 140 needs to be adjusted. The integrated modular structure is easier to install and can also reduce the probability of introducing new impurities during the installation process.

[0029] It should be noted that in the description of this utility model, any descriptions of orientation, such as up, down, front, back, left, right, etc., indicating orientation or positional relationships, are based on the orientation or positional relationships 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, be constructed or operated in a specific orientation, and should not be construed as a limitation of this utility model.

[0030] In the description of this utility model, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is mentioned, it is only for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0031] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0032] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A filter, characterized in that, The filter includes a filter body (110), a filter assembly (120), a first seal (130), and a first locking member (140). The filter body (110) has a fluid channel (112) inside. The filter assembly (120) is installed in the fluid channel (112). The first seal (130) is installed at the connection end (111) of the filter body (110). The first locking member (140) is used to lock and fix the filter body (110) onto the detection device. When the filter body (110) is locked onto the detection device, the first seal (130) seals and abuts against the filter body (110) and the detection device.

2. The filter according to claim 1, characterized in that, The first locking member (140) is a threaded connection member. The filter body (110) is provided with a connection hole (113) that penetrates the filter body (110). Multiple connection holes (113) are distributed circumferentially along the fluid channel (112). The first locking member (140) is threadedly connected to the connection hole (113) and locked to the detection device.

3. The filter according to claim 2, characterized in that, The filter body (110) has an annular groove (1111) at the connecting end (111), and the first sealing member (130) is engaged in the annular groove (1111). A plurality of connecting holes (113) are distributed around the outer periphery of the annular groove (1111).

4. The filter according to claim 1, characterized in that, The filter assembly (120) is installed in the fluid channel (112) by a second locking member (150).

5. The filter according to claim 4, characterized in that, The fluid channel (112) has a threaded section (1121) and a locking step (1122). The second locking member (150) is a threaded connector and is connected to the threaded section (1121) to press the filter assembly (120) onto the locking step (1122).

6. The filter according to claim 4 or 5, characterized in that, The filter assembly (120) includes a filter element (121) and a second seal (123), the filter element (121) being located between the second locking member (150) and the second seal (123).

7. The filter according to claim 6, characterized in that, The filter assembly (120) further includes a filter screen (122) disposed between the filter element (121) and the second seal (123).

8. The filter according to claim 6, characterized in that, The filter element (121) is a sintered stainless steel filter element (121).

9. A detection device, characterized in that, Includes the filter (100) as described in any one of claims 1-8.

10. The detection device according to claim 9, characterized in that, It also includes a VCR connector (200), a controller (300) and / or a flow meter (400), with the filter (100) mounted on the controller (300), the flow meter (400) or the VCR connector (200).

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