Cleaning and filtering straight-through valve

Abstract

The cleaning and filtering straight-through valve comprises a valve body and an external filtering assembly, the valve body comprises a valve cover, a hand wheel piece, a valve rod and a sealing piece matched with a sealing seat arranged on the valve body, and the two ends of the valve body are provided with an internal thread connecting port and an internal thread fixing port respectively. The external filtering assembly comprises a filtering head, a flange part and an external thread opening, and the external thread part used for being matched and fixed with threads on a water pipe is further arranged between the filtering head and the flange part; according to the cleaning and filtering straight-through valve, the filtering assembly is arranged on the water outlet side of the valve, the two ends of the filtering assembly are connected with the valve body and the water pipe respectively, during cleaning and dismounting, only the valve needs to be closed, a flow channel in the valve body is cut off, and the filtering assembly side where medium circulation is cut off by a sealing piece can be dismounted; and the filter inner core is disassembled, cleaned and replaced and then assembled, so that the maintenance is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field, concretely relates to a clean filter straight -through valve. BACKGROUND

[0002] Valve is the control part in fluid delivery system, in order to respond to the industrial development demand, and the valve structure with filter function of prior art is provided, that is, installs filter structure in valve to filter fluid, thereby improving the environmental protection of fluid discharge.

[0003] The filter structure of the valve structure with filter function of prior art is generally arranged in the valve, and the filter assembly needs to be disassembled and cleaned after the valve is closed. Although the valve is closed, water pressure still exists on both sides of the valve structure, and at this time, the medium will still gush from the water inlet side once the filter assembly is opened by personnel, which not only pollutes the environment, but also has certain safety hazards for the operator. Based on this, the filter assembly of the valve structure with filter function of prior art generally needs to be disassembled and cleaned after the front end valve is closed, which makes the disassembly condition of the filter assembly in the valve structure more stringent and inconvenient to use. SUMMARY

[0004] In view of the prior art, the purpose of the utility model is to provide a clean filter straight-through valve with a filter assembly designed to be externally connected to the valve structure, and the filter assembly can also be connected to the valve.

[0005] In order to achieve the above purpose, the utility model adopts the technical scheme: a clean filter straight-through valve, comprising a valve body and an external filter assembly, the valve body comprises a valve cover, a hand wheel, a valve stem and a sealing element matched with a sealing seat arranged on the valve body, and inner thread connection ports and inner thread fixing ports are arranged at both ends of the valve body, the external filter assembly comprises a filter head, a flange part and an external thread port, and an external thread part for fixing with the thread of the water pipe is further arranged between the filter head and the flange part.

[0006] As a further arrangement of the above scheme, the external filter assembly is connected to the inner thread fixing port on the water outlet side of the valve body.

[0007] As a further arrangement of the above scheme, the thread directions of the external thread port and the external thread part on the external filter assembly are oppositely arranged.

[0008] As a further arrangement of the above scheme, the filter head further comprises a filter disc and a gland, and the gland is used to install the filter disc inside the filter head.

[0009] As a further arrangement of the above scheme, the gland is provided with an external thread structure and is detachably fixed with the inner side wall of the filter head through threads, and a through hole is further arranged in the middle of the gland to communicate both sides.

[0010] Beneficial effects: The cleaning filter straight-through valve of this utility model is equipped with a filter component on the outlet side of the valve. The two ends of the filter component are connected to the valve body and the water pipe respectively. When cleaning and disassembling, it is only necessary to close the valve to disassemble the filter component. After disassembly, cleaning and replacement of the filter core, it can be reassembled, which is convenient for maintenance. Attached Figure Description

[0011] Fig. 1 This is a schematic diagram of the structure of the cleaning filter straight-through valve of this utility model.

[0012] Fig. 2 This is a schematic diagram of the valve body and external filter assembly in this embodiment.

[0013] Fig. 3 This is a schematic diagram of the internal structure of the valve in this embodiment.

[0014] Reference numerals: 1. Valve body; 11. Internal threaded connection port; 12. Internal threaded fixing port; 13. Valve cover; 14. Handwheel assembly; 15. Seal; 16. Valve stem; 17. Sealing seat; 2. External filter assembly; 21. Filter head; 211. Filter disc; 212. Gland; 22. External threaded part; 23. Flange part; 24. External threaded port. Detailed Implementation

[0015] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other.

[0016] like Figs. 1-3 The cleaning filter straight-through valve shown includes a valve body 1 and an external filter assembly 2. The valve body 1 includes a valve cover 13, a handwheel 14, a valve stem 16, and a sealing element 15 that cooperates with a sealing seat 17 provided on the valve body 1. The two ends of the valve body 1 are respectively provided with an internal threaded connection port 11 and an internal threaded fixing port 12. The external filter assembly 2 includes a filter head 21, a flange 23, and an external threaded port 24. An external threaded portion 22 for fixing to the threaded portion on a water pipe is also provided between the filter head 21 and the flange 23.

[0017] As a further feature of the above scheme, the external filter assembly 2 is connected to the internal threaded fixing port 12 on the water outlet side of the valve body 1.

[0018] As a further feature of the above scheme, the external threaded port 24 and the external threaded portion 22 on the external filter assembly 2 are arranged in opposite directions.

[0019] As a further arrangement of the above-mentioned scheme, the filter head 21 is further provided with a filter disc 211 and a gland 212, the gland 212 is used to mount the filter disc 211 inside the filter head 21, the gland 212 is provided with external thread structure and is detachably fixed with the inner side wall of the filter head 21 through thread, and the middle part of the gland 212 is further provided with a through hole communicating two sides.

[0020] Reference Figs. 1-3 The cleaning and filtering straight-through valve of the utility model, the valve body 1 of the embodiment further comprises an external filtering assembly 2 connected and sealed through threads, the external filtering assembly 2 of the embodiment comprises a flange part 23 with an external hexagonal flange, the flange part 23 is provided with an external thread port 24 and a filter head 21 with an external thread part 22 at both ends, the external filtering assembly 2 of the embodiment is connected and fixed with the internal thread fixing port 12 of the valve body 1 through the external thread port 24, and the external thread part 22 is threadedly connected on the internal thread port of the water pipe, further, it is worth noting that the threads of the external thread port 24 and the external thread part 22 of the embodiment are oppositely arranged, so that when the valve is disassembled and assembled, the staff only needs to fix the water pipes and the valve body 1 on both sides, and the external filtering assembly 2 is rotated as a whole through the flange part 23, so that the water pipes and the valve body 1 are threadedly sealed and fixed, in addition, the filter head 21 of the external filtering assembly 2 of the embodiment is further provided with a gland 212 and a filter disc 211, the medium passing through the valve body 1 and entering the rear water pipe is filtered and cleaned, the small particle impurities in the medium are intercepted based on the filter disc 211, after a certain period of use, the staff can directly close the valve, the valve rod 16 is driven to rotate through the hand wheel 14, the valve rod 16 with external threads is threadedly matched with the valve cover 13, the sealing element 15 is driven to move and stretch relative to the sealing seat 17, so that the opening and closing of the valve are realized.

[0021] Obviously, those skilled in the art can make various modifications and variations to the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model belong to the scope of the utility model scheme and its equivalent technology, the utility model also intends to include these modifications and variations.

Claims

1. A cleaning filter straight-through valve, characterized in that: The device includes a valve body (1) and an external filter assembly (2). The valve body (1) includes a valve cover (13), a handwheel (14), a valve stem (16), and a sealing element (15) that cooperates with a sealing seat (17) provided on the valve body (1). The valve body (1) has an internal thread connection port (11) and an internal thread fixing port (12) respectively at both ends. The external filter assembly (2) includes a filter head (21), a flange (23), and an external thread port (24). An external thread portion (22) for fixing to the thread on the water pipe is also provided between the filter head (21) and the flange (23).

2. The cleaning filter straight-through valve according to claim 1, characterized in that: The external filter assembly (2) is connected to the internal threaded fixing port (12) on the water outlet side of the valve body (1).

3. A cleaning filter straight-through valve according to claim 1, characterized in that: The external threaded port (24) and the external threaded part (22) on the external filter assembly (2) are arranged in opposite directions.

4. A cleaning filter straight-through valve according to claim 1, characterized in that: The filter head (21) is also provided with a filter sheet (211) and a pressure cap (212), and the pressure cap (212) is used to install the filter sheet (211) inside the filter head (21).

5. A cleaning filter straight-through valve according to claim 4, characterized in that: The pressure cap (212) is provided with an external thread structure and is detachably threaded to the inner wall of the filter head (21). The pressure cap (212) is also provided with a through hole in the middle to connect the two sides.

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