Breather valve with replaceable filter element and connecting pipe

Abstract

The utility model relates to the technical field of breather valves, in particular to a breather valve with a replaceable filter element and a connecting pipe, which comprises a negative pressure pipeline and a positive pressure pipeline, a filter element support is fixedly connected in the negative pressure pipeline and the positive pressure pipeline, the filter element support is semicircular, the front part of the filter element support is fixedly connected with a fixed part II, and the rear end of the filter element support is fixedly connected with two side parts of a rotary clamping part. The middle of the rotary clamping piece is fixedly connected to the tail of the filter element replacement cover, the middle of the rotary clamping piece is connected through a rotary shaft, the filter element replacement cover is in a semi-circular ring shape, the end of the filter element replacement cover is fixedly connected with a first fixing piece, the first fixing piece and a second fixing piece can be fixedly connected through a bolt, and filter element clamping grooves are formed in the filter element support and the filter element replacement cover. According to the breather valve with the replaceable filter element and the connecting pipe, the breather valve with the replaceable filter element and the connecting pipe is an important valve device, a worker can easily take out an old filter element and install a new filter element only by opening the turnover cover through the arrangement of the filter element replacement cover with the turnover cover, the whole breather valve does not need to be disassembled, and therefore time and energy are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of breathing valves, in particular to a breathing valve with a replaceable filter element and a pipe. Background Art

[0002] The breathing valve with a pipe is an important valve device. It is mainly used to ensure that the storage tank space is isolated from the atmosphere within a certain pressure range. At the same time, it can be connected to the atmosphere when the pressure exceeds or falls below this range, thereby maintaining the air pressure balance in the storage tank. The breathing valve with a pipe is a valve that can prevent the storage tank from being damaged due to overpressure or vacuum, and can also reduce the evaporation loss of the stored liquid. The breathing valve is widely used in industrial fields such as petroleum, chemical, pharmaceutical, and food.

[0003] In these fields, many devices need to operate under a certain pressure, and breathing valves are important components to ensure the safe operation of these devices. In some scenarios, filter elements are designed to meet specific application requirements. These filter elements are usually used to filter impurities, dust and other particulate matter in the air entering the storage tank or the gas discharged from the storage tank. However, in today's breathing valves, replacing the filter element usually requires first disassembling other parts of the breathing valve, such as the valve cover, valve seat, etc., before removing the filter element. The steps are cumbersome and the operation is complicated. In view of this, we propose a breathing valve with a pipe and a replaceable filter element. Utility Model Content

[0004] The main purpose of the present utility model is to provide a breathing valve with a replaceable filter element and a pipe connection to solve the problems raised in the relevant technology. Nowadays, when replacing the filter element of a breathing valve, it is usually necessary to first disassemble other components of the breathing valve, such as the valve cover, valve seat, etc., before the filter element can be removed. The steps are cumbersome and the operation is complicated.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a breathing valve with a pipe connection and a replaceable filter element is provided, including a negative pressure pipe and a positive pressure pipe, and is characterized in that a filter element holder is fixedly connected to the negative pressure pipe and the positive pressure pipe, and the filter element holder is in the form of a semicircular ring, the front of which is fixedly connected to a fixing part 2, and the rear end is fixedly connected to two side parts of a rotating clamp, the middle part of the rotating clamp is fixedly connected to the tail of the filter element replacement cover, and the middle of the rotating clamp is connected by a rotating shaft, the filter element replacement cover is in the form of a semicircular ring, the end of which is fixedly connected to a fixing part 1, and the fixing part 1 and the fixing part 2 can be fixedly connected by bolts, and a filter element slot is provided on the filter element holder and the filter element replacement cover, and a filter element is clamped in the filter element slot.

[0006] Furthermore, the positive pressure pipe is fixedly connected to the upper part of the breathing valve body, a connecting port is opened at the lower end of the breathing valve body, a negative pressure pipe is fixedly connected to the middle part of the breathing valve body, the negative pressure pipe passes through the breathing valve body and is fixedly connected to the negative pressure valve chamber, the interior of the negative pressure valve chamber is hollow, a circular opening is opened at the upper part of the negative pressure valve chamber, a negative pressure valve disc pad is fixedly connected to the outer periphery of the circular opening, the negative pressure valve disc pad is fixedly connected to the negative pressure valve seat, a negative pressure valve disc is placed on the negative pressure valve disc pad, and the negative pressure valve disc is fixedly connected to the bottom end of the negative pressure guide rod.

[0007] Furthermore, the negative pressure guide rod passes through the positive pressure valve seat and is inserted into the hollow positive pressure conduit. The interior of the positive pressure conduit is hollow, and the upper end of the positive pressure conduit is inserted into the valve cover.

[0008] Furthermore, two connecting blocks are fixedly connected to one side of the outer surface of the rectangular shell, a positive pressure valve disc is fixedly connected to the positive pressure conduit fixed on the bottom of the inner wall of the connecting block, the positive pressure valve seat is fixedly connected to the inside of the breathing valve body, a circular opening is opened in the middle part of the positive pressure valve seat, and a positive pressure valve seat cushion is fixedly connected to the outer periphery of the circular opening, and the positive pressure valve disc is placed on the positive pressure valve seat cushion.

[0009] Furthermore, the filter element replacement cover and the filter element holder can form a complete circular ring, and the diameter of the filter element is larger than the inner diameter of the circular ring and does not exceed the depth of the filter element slot at most.

[0010] Furthermore, the filter element is circular, and its outer periphery is annular, the filter element is fixedly connected to the inner part of the annular ring, and the width of the outer circular ring is not greater than the width of the filter element slot.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the breathing valve with a pipe and replaceable filter element is an important valve device. By setting a flip-up filter element replacement cover, the staff only needs to open the flip cover to easily remove the old filter element and install a new filter element without disassembling the entire breathing valve, thereby saving time and energy. The filter element replacement cover and the filter element support are provided with a filter element slot, which provides a stable installation position for the filter element and makes the installation of the filter element more convenient, thereby improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0013] Figure 2 It is an overall schematic diagram of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the negative pressure pipeline and the positive pressure pipeline of this utility model;

[0015] Figure 4 This is a schematic diagram of the filter element replacement cover and filter element support of the present invention.

[0016] Illustrations: 1. Breathing valve body; 2. Connecting port; 3. Negative pressure valve seat; 311. Negative pressure valve disc pad; 312. Negative pressure valve chamber; 313. Negative pressure pipe; 4. Negative pressure valve disc; 411. Negative pressure guide rod; 5. Positive pressure valve seat; 511. Positive pressure valve disc pad; 6. Positive pressure valve disc; 611. Positive pressure conduit; 612. Positive pressure pipe; 7. Filter element replacement cover; 711. Fixing part 1; 712. Rotating clamp; 713. Rotating shaft; 714. Filter element; 715. Filter element slot; 716. Fixing part 2; 717; Filter element support; 8. Valve cover. DETAILED DESCRIPTION

[0017] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purpose, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the utility model in combination with the accompanying drawings and preferred embodiments.

[0018] See also Figures 1-4 As shown, the purpose of this embodiment is to provide a breathing valve with a replaceable filter element, including a negative pressure pipe 313 and a positive pressure pipe 612, a filter element holder 717 is fixedly connected to the negative pressure pipe 313 and the positive pressure pipe 612, and the filter element holder 717 is in a semicircular shape. The front part of the filter element holder 717 is fixedly connected to a fixing member 2 716, and the rear end is fixedly connected to the two sides of the rotating clamp 712. The middle part of the rotating clamp 712 is fixedly connected to the tail of the filter element replacement cover 7, and the rotating clamp 712 is fixedly connected to the rear end of the filter element replacement cover 7. The middle is connected by a rotating shaft 713. Such a structure allows the filter element replacement cover 7 to rotate around the rotating shaft 713. The filter element replacement cover 7 is a semicircular ring, and its end is fixedly connected with a fixing part 1 711. The fixing part 1 711 and the fixing part 2 716 can be fixedly connected by bolts. A filter element slot 715 is provided on the filter element support 717 and the filter element replacement cover 7. The filter element slot 715 provides a stable installation position for the filter element 714, and the filter element 714 is stuck in the filter element slot 715.

[0019] The positive pressure pipe 612 is fixedly connected to the upper part of the breathing valve body 1, and a connection port 2 is opened at the lower end of the breathing valve body 1. A negative pressure pipe 313 is fixedly connected to the middle part of the breathing valve body 1. The negative pressure pipe 313 passes through the breathing valve body 1 and is fixedly connected to the negative pressure valve chamber 312. The negative pressure valve chamber 312 is hollow inside, and a circular opening is opened at the upper part of the negative pressure valve chamber 312. The outer periphery of the circular opening is fixedly connected to a negative pressure valve disc pad 311. The negative pressure valve disc pad 311 is fixedly connected to the negative pressure valve seat 3, and a negative pressure valve disc pad 311 is placed on the negative pressure valve seat 3. The valve disc 4 and the negative pressure valve disc 4 are fixedly connected to the bottom end of the negative pressure guide rod 411. When the pressure inside the breathing valve is lower than the external pressure, the negative pressure valve disc 4 will rise due to the effect of atmospheric pressure. The negative pressure guide rod 411 passes through the positive pressure valve seat 5 and is inserted into the hollow positive pressure conduit 611. The interior of the positive pressure conduit 611 is hollow, and the upper end of the positive pressure conduit 611 is inserted into the valve cover 8. The external gas will pass through the filter element 714 fixedly connected to the negative pressure pipe 313 and enter the negative pressure valve chamber 312, and then enter the breathing valve.

[0020] A positive pressure valve disc 6 is fixedly connected to the positive pressure conduit 611, and the positive pressure valve seat 5 is fixedly connected to the inside of the breathing valve body 1. A circular opening is opened in the middle part of the positive pressure valve seat 5, and a positive pressure valve seat cushion 511 is fixedly connected to the outer periphery of the circular opening. The positive pressure valve disc 6 is placed on the positive pressure valve seat cushion 511. When the pressure inside the breathing valve is greater than the external pressure, the positive pressure valve disc 6 will rise due to the effect of atmospheric pressure, and the upper end of the positive pressure conduit 611 will be inserted into the valve cover 8. The internal gas will be discharged after passing through the filter element 714 fixedly connected to the positive pressure pipe 612.

[0021] The filter element replacement cover 7 and the filter element holder 717 can form a complete circular ring. The diameter of the filter element 714 is larger than the inner diameter of the circular ring and does not exceed the depth of the filter element slot 715. The filter element 714 is circular and its outer periphery is annular. The filter element is fixedly connected to the inside of the ring. The width of the outer circular ring is no greater than the width of the filter element slot 715. This design allows the filter element 714 to be stably installed in the filter element holder 717 and the filter element replacement cover 7.

[0022] Working principle: When the filter element 714 of the breathing valve needs to be replaced, the staff removes the bolts on the fixing part 1 711 and the fixing part 2 716. Because the rear end of the filter element holder 717 is fixedly connected to the two side parts of the rotating clamp 712, the middle part of the rotating clamp 712 is fixedly connected to the tail of the filter element replacement cover 7, and the middle of the rotating clamp 712 is connected by the rotating shaft 713. This structure allows the filter element replacement cover 7 to rotate around the rotating shaft 713, so the staff can open the filter element replacement cover 7, take out the filter element 714 stuck in the filter element slot 715, and then align the new filter element 714 with the filter element slot 715 and put it in. Then the staff aligns the filter element replacement 7 with the filter element and fixes the fixing part 1 711 and the fixing part 2 716 together with bolts. In this way, the filter element 716 is replaced.

[0023] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A breathing valve with a replaceable filter element and a pipe, comprising a negative pressure pipe (313) and a positive pressure pipe (612), characterized in that: A filter element holder (717) is fixedly connected to the negative pressure pipe (313) and the positive pressure pipe (612). The filter element holder (717) is in the shape of a semicircular ring, and a second fixing member (716) is fixedly connected to the front of the filter element holder, and two side parts of a rotating clamp (712) are fixedly connected to the rear end of the filter element replacement cover (7). The middle of the rotating clamp (712) is connected via a rotating shaft (713). The filter element replacement cover (7) is in the shape of a semicircular ring, and a first fixing member (711) is fixedly connected to the end of the filter element replacement cover (7). The first fixing member (711) and the second fixing member (716) can be fixedly connected by bolts. A filter element slot (715) is provided on the filter element holder (717) and the filter element replacement cover (7). A filter element (714) is clamped in the filter element slot (715).

2. A breathing valve with a replaceable filter element according to claim 1, characterized in that: The positive pressure pipe (612) is fixedly connected to the upper part of the breathing valve body (1), and a connection port (2) is opened at the lower end of the breathing valve body (1). A negative pressure pipe (313) is fixedly connected to the middle part of the breathing valve body (1). The negative pressure pipe (313) passes through the breathing valve body (1) and is fixedly connected to the negative pressure valve chamber (312). The interior of the negative pressure valve chamber (312) is hollow, and a circular opening is opened at the upper part of the negative pressure valve chamber (312). A negative pressure valve disc pad (311) is fixedly connected to the outer periphery of the circular opening. The negative pressure valve disc pad (311) is fixedly connected to the negative pressure valve seat (3). A negative pressure valve disc (4) is placed on the negative pressure valve disc pad (311), and the negative pressure valve disc (4) is fixedly connected to the bottom end of the negative pressure guide rod (411).

3. A breathing valve with a replaceable filter element according to claim 2, characterized in that: The negative pressure guide rod (411) passes through the positive pressure valve seat (5) and is inserted into the hollow positive pressure conduit (611). The interior of the positive pressure conduit (611) is hollow, and the upper end of the positive pressure conduit (611) is inserted into the valve cover (8).

4. A breathing valve with a replaceable filter element according to claim 3, characterized in that: The positive pressure conduit (611) is fixedly connected to a positive pressure valve disc (6), the positive pressure valve seat (5) is fixedly connected to the inside of the breathing valve body (1), a circular opening is opened in the middle of the positive pressure valve seat (5), and a positive pressure valve seat cushion (511) is fixedly connected to the periphery of the circular opening, and the positive pressure valve disc (6) is placed on the positive pressure valve seat cushion (511).

5. The breathing valve with a replaceable filter element according to claim 4, characterized in that: The filter element replacement cover (7) and the filter element holder (717) can form a complete circular ring, and the diameter of the filter element (714) is larger than the inner diameter of the circular ring and does not exceed the depth of the filter element slot (715).

6. A breathing valve with a replaceable filter element according to claim 5, characterized in that: The filter element (714) is circular, and its outer periphery is annular. The filter element is fixedly connected to the inner portion of the annular ring, and the width of the outer circular ring is not greater than the width of the filter element slot (715).

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