Flame arrester of breather valve

Abstract

The utility model discloses a breather valve flame arrester, and relates to the technical field of balance valves mainly used for containers. The breather valve flame arrester comprises a breather valve, a connecting pipe is fixedly connected to the lower surface of the breather valve, and a connecting device convenient to mount and dismount is arranged on the lower surface of the connecting pipe; wherein the connecting device comprises a first connecting disc, and four through holes are formed in the surface of the first connecting disc; four sliding grooves are formed in the surface of the first connecting disc. Four threaded sleeves are arranged on the outer portion of the first connecting disc, by arranging a sliding groove and a through hole in the connecting device, when the connecting device is disassembled, only four nuts need to be unscrewed, the breather valve is rotated, the breather valve can be disassembled, the nuts do not need to be completely disassembled, the nuts are made to leave the surfaces of corresponding screws, and therefore the possibility that the nuts are lost does not exist; therefore, while the possibility that the nut is lost is reduced, the breather valve can be disassembled only by rotating the breather valve after the nut is unscrewed, and disassembly is simpler and more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of a balancing valve mainly used for a container, in particular to a breathing valve flame arrester. Background Art

[0002] A breathing valve flame arrester refers to a breathing valve and a flame arrester, which are used in combination. After the two are installed and used in combination, they need to be regularly disassembled for maintenance to ensure the effectiveness of the device. A Chinese utility model patent, authorization announcement number "CN217272156U", discloses a flame-arresting breathing valve that is easy to disassemble and assemble, including a breathing valve mechanism, a flame arrester mechanism and a base. The lower end of the breathing valve mechanism is equipped with a flame arrester mechanism, and the lower end of the flame arrester mechanism is fixedly connected to the base. The flame arrester mechanism includes a fixed upper ring, a fixed lower ring, a fixed half ring, a groove, a movable half ring, an extension block and a rectifier grid. The fixed upper ring is fixedly connected to the lower end of the breathing valve mechanism, the fixed lower ring is fixedly connected to the upper end of the base, and a fixed half ring is fixedly connected between the fixed upper ring and the fixed lower ring.

[0003] The above technical solution can optimize the current maintenance process of the flame arrester breathing valve, in which personnel need to remove the breathing valve mechanism from the flame arrester and then take the rectifier grid out of the flame arrester, thereby reducing the work intensity of personnel and improving the work efficiency of maintenance operations. It can also improve the safety of maintenance operations. During disassembly, the fastening bolts need to be completely removed before the movable half ring can be removed, and there is a possibility of losing the removed bolts. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a breathing valve flame arrester, which can solve the problem that the fastening bolts need to be completely removed before the movable half ring can be removed during disassembly, and there is a possibility of losing the removed bolts.

[0005] To achieve the above object, the utility model provides the following technical solution: a breathing valve flame arrester, comprising a breathing valve, a lower surface of the breathing valve is fixedly connected with a connecting pipe, and a connecting device for facilitating installation and disassembly is provided on the lower surface of the connecting pipe;

[0006] Wherein, the connecting device comprises a first connecting disk, and four through holes are opened on the surface of the first connecting disk;

[0007] Wherein, four sliding grooves are provided on the surface of the first connecting plate;

[0008] Among them, four threaded sleeves are arranged on the outside of the first connecting plate, and the surfaces of the four threaded sleeves are in contact with the inside of the sliding groove.

[0009] Preferably, the interiors of the four threaded sleeves are all threadedly connected with screws.

[0010] Preferably, the surfaces of the four screws are all threadedly connected with nuts, and the surfaces of the four nuts are in contact with the insides of the corresponding through holes.

[0011] Preferably, the lower surfaces of the four threaded sleeves are fixedly connected to a second connecting disk, and the upper surface of the second connecting disk is in contact with the lower surface of the first connecting disk.

[0012] Preferably, a flame arrester is fixedly connected to the lower surface of the second connecting plate.

[0013] Preferably, a copper mesh is installed inside the flame arrester;

[0014] Wherein, a pipeline is fixedly connected to the lower surface of the flame arrester.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] (1) The breathing valve flame arrester is provided with a sliding groove and a through hole in the connecting device. When disassembling, it is only necessary to loosen the four nuts and rotate the breathing valve to disassemble the breathing valve. It is not necessary to completely remove the nuts so that the nuts leave the surfaces of the corresponding screws. In this way, there is no possibility of losing the nuts. Therefore, while reducing the possibility of losing the nuts, after loosening the nuts, it is only necessary to rotate the breathing valve to disassemble the breathing valve, which is more convenient to disassemble.

[0017] (2) When installing the breathing valve flame arrester, it is only necessary to align its four through holes with the corresponding nuts, then insert its four threaded sleeves into the corresponding through holes, and then rotate them so that their four threaded sleeves contact the surface of their first connecting plate, and then tighten the four nuts to install the breathing valve and the connecting pipe together. The operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is an overall schematic diagram of the breathing valve and flame arrester of the utility model;

[0021] Figure 3 This is a schematic diagram of the interior of the flame arrester of the utility model;

[0022] Figure 4 This is an overall schematic diagram of the first connecting disk of the utility model;

[0023] Figure 5 It is an overall schematic diagram of the second connecting disk of the utility model.

[0024] Figure numerals: 1. breathing valve; 2. connecting pipe; 3. flame arrester; 4. pipeline; 5. first connecting plate; 6. second connecting plate; 7. nut; 8. screw; 9. threaded sleeve; 10. copper mesh; 11. through hole; 12. sliding groove. DETAILED DESCRIPTION

[0025] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0026] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0028] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0029] See also Figure 1-5 The utility model provides a technical solution: a breathing valve flame arrester, comprising a breathing valve 1, a connecting pipe 2 is fixedly connected to the lower surface of the breathing valve 1, and a connecting device for easy installation and disassembly is provided on the lower surface of the connecting pipe 2;

[0030] The connecting device comprises a first connecting plate 5, and four through holes 11 are formed on the surface of the first connecting plate 5;

[0031] The surface of the first connecting plate 5 is provided with four sliding grooves 12;

[0032] Among them, four threaded sleeves 9 are arranged outside the first connecting plate 5 , and the surfaces of the four threaded sleeves 9 are in contact with the inside of the sliding groove 12 .

[0033] The interiors of the four threaded sleeves 9 are all threadedly connected with screws 8 .

[0034] The surfaces of the four screws 8 are all threadedly connected with nuts 7 , and the surfaces of the four nuts 7 are all in contact with the inside of the through holes 11 .

[0035] The lower surfaces of the four threaded sleeves 9 are fixedly connected with the second connecting disk 6 , and the upper surface of the second connecting disk 6 is in contact with the lower surface of the first connecting disk 5 .

[0036] The flame arrester 3 is fixedly connected to the lower surface of the second connecting plate 6 .

[0037] A copper mesh 10 is installed inside the flame arrester 3;

[0038] The lower surface of the flame arrester 3 is fixedly connected with a pipeline 4 .

[0039] When the breathing valve 1 and the flame arrester 3 need to be disassembled, first loosen the four nuts 7 using external tools without removing the surfaces of the corresponding screws 8, and then rotate the breathing valve 1. The rotation of the breathing valve 1 drives the connecting pipe 2 to rotate, and the rotation of the connecting pipe 2 drives the first connecting disk 5 to rotate. The rotation of the first connecting disk 5 drives the four through holes 11 to rotate until they coincide with the positions of the corresponding nuts 7. Then, pull the breathing valve 1 upward using external force to drive the connecting pipe 2 to move upward. The upward movement of the connecting pipe 2 drives the first connecting disk 5 to move upward and separate from the upper surface of the second connecting disk 6.

[0040] When it is necessary to install the breathing valve 1 and the flame arrester 3, first use external force to drive the breathing valve 1 to move, the movement of the breathing valve 1 drives the connecting pipe 2 to move, the movement of the connecting pipe 2 drives the first connecting plate 5 to move, the movement of the first connecting plate 5 drives the four through holes 11 to coincide with the corresponding nuts 7, and then, continue to drive the first connecting plate 5 to move until it contacts the upper surface of the second connecting plate 6, and then rotate the breathing valve 1 to drive the first connecting plate 5 to rotate, the rotation of the first connecting plate 5 drives the four sliding grooves 12 to rotate, and when its four threaded sleeves 9 contact the surface of the first connecting plate 5, use external tools to rotate the four nuts 7 for installation.

[0041] By setting the sliding groove 12 and the through hole 11 in the connecting device, when disassembling, it is only necessary to loosen the four nuts 7 and rotate the breathing valve 1 to disassemble the breathing valve 1. There is no need to completely disassemble the nuts 7 so that the nuts 7 leave the surfaces of the corresponding screws 8. In this way, there is no possibility of losing the nuts 7. Therefore, while reducing the possibility of losing the nuts 7, after loosening the nuts 7, it is only necessary to rotate the breathing valve 1 to disassemble the breathing valve 1, which makes disassembly easier.

[0042] During installation, it is only necessary to align the four through holes 11 with the corresponding nuts 7, then insert the four threaded sleeves 9 into the corresponding through holes 11, and then rotate them so that the four threaded sleeves 9 contact the surface of the first connecting plate 5, and then tighten the four nuts 7 to install the breathing valve 1 and the connecting pipe 2 together. The operation is simple.

[0043] Working principle: when it is necessary to disassemble the breathing valve 1 and the flame arrester 3, first loosen the four nuts 7 with external tools without removing the surface of the corresponding screws 8, and then rotate the breathing valve 1, the breathing valve 1 drives the connecting pipe 2 to rotate, the connecting pipe 2 drives the first connecting disk 5 to rotate, the first connecting disk 5 drives the four through holes 11 to rotate until they coincide with the positions of the corresponding nuts 7, then pull the breathing valve 1 upward through external force to drive the connecting pipe 2 to move upward, and the connecting pipe 2 drives the first connecting disk 5 to move upward and separate from the upper surface of the second connecting disk 6.

[0044] When it is necessary to install the breathing valve 1 and the flame arrester 3, first use external force to drive the breathing valve 1 to move, the breathing valve 1 drives the connecting pipe 2 to move, the connecting pipe 2 drives the first connecting plate 5 to move, the first connecting plate 5 drives the four through holes 11 to coincide with the corresponding nuts 7, and continues to drive the first connecting plate 5 to move until it contacts the upper surface of the second connecting plate 6, then rotate the breathing valve 1 to drive the first connecting plate 5 to rotate, the first connecting plate 5 drives the four sliding grooves 12 to rotate, and when its four threaded sleeves 9 contact the surface of the first connecting plate 5, use external tools to rotate the four nuts 7 for installation.

[0045] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A breathing valve flame arrester, comprising a breathing valve (1), wherein a connecting pipe (2) is fixedly connected to the lower surface of the breathing valve (1), and characterized in that: The lower surface of the connecting pipe (2) is provided with a connecting device which is convenient for installation and disassembly; The connecting device comprises a first connecting disk (5), and four through holes (11) are formed on the surface of the first connecting disk (5); Wherein, four sliding grooves (12) are provided on the surface of the first connecting plate (5); Among them, four threaded sleeves (9) are arranged outside the first connecting plate (5), and the surfaces of the four threaded sleeves (9) are in contact with the inside of the sliding groove (12).

2. The breathing valve flame arrester according to claim 1, characterized in that: The interiors of the four threaded sleeves (9) are all threadedly connected with screws (8).

3. The breathing valve flame arrester according to claim 2, characterized in that: The surfaces of the four screws (8) are all threadedly connected with nuts (7), and the surfaces of the four nuts (7) are all in contact with the inside of the corresponding through holes (11).

4. The breathing valve flame arrester according to claim 1, characterized in that: The lower surfaces of the four threaded sleeves (9) are fixedly connected to a second connection disk (6), and the upper surface of the second connection disk (6) is in contact with the lower surface of the first connection disk (5).

5. The breathing valve flame arrester according to claim 4, characterized in that: The lower surface of the second connecting plate (6) is fixedly connected to a flame arrester (3).

6. The breathing valve flame arrester according to claim 5, characterized in that: A copper mesh (10) is installed inside the flame arrester (3); Wherein, the lower surface of the flame arrester (3) is fixedly connected with a pipeline (4).

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