Automatic exhaust valve

Abstract

According to the technical scheme, the automatic exhaust valve is characterized in that the automatic exhaust valve comprises a valve body, the valve body comprises a liquid inlet pipe, a liquid outlet pipe and an exhaust pipe, the exhaust pipe comprises a pipe body, a floating block, a limiting plate and an exhaust assembly, the limiting plate is transversely installed in an inner cavity of the pipe body and divides the inner cavity into an operation cavity and a floating cavity, and the floating block is arranged in the operation cavity. The floating block is slidably connected into the floating cavity; a plurality of groups of air holes are formed in the limiting plate and are arranged at equal intervals in the circumferential direction of the limiting plate; the exhaust assembly is rotatably connected into the operation cavity in the circumferential direction of the pipe body and comprises a connecting rod of an L-shaped structure, an exhaust groove is formed in the connecting rod in a penetrating mode, the connecting rod is used for being aligned with one air hole of the connecting rod, the exhaust angle of the exhaust pipe can be fully adjusted through the automatic exhaust valve, and the application range is wider.

Description

Technical Field

[0001] The utility model relates to an exhaust valve, more specifically, it relates to an automatic exhaust valve. Background Art

[0002] An exhaust valve, also known as a bleed valve, vent valve, air releaser or vacuum pump, is a device used to control the flow of gas in a pipeline. Its main function is to release or remove gas from the pipeline system, ensuring that only the required gas is in the pipeline to prevent air bag effect and blockage, and maintain the normal working pressure range of the system. The exhaust valve is usually installed at the highest or lowest point of the pressure pipeline system to cut off the flow of the medium during pipeline maintenance and modification.

[0003] Exhaust valves are widely used in various pipeline systems, including independent heating systems, central heating systems, heating boilers, central air conditioners, floor heating and solar heating systems, etc. In these systems, exhaust valves can quickly release or remove excess gas in the pipeline to ensure the normal operation of the system.

[0004] Most of the existing exhaust directions are diffused in all directions. In order to solve the above problem, at present, a Chinese patent with the announcement number CN218347961U discloses an automatic exhaust valve, which uses the exhaust hole on the exhaust adjustment cap to exhaust the gas. Although this method can adjust the exhaust direction and solve the use of some special conditions, the exhaust angle is limited, and the angle of the exhaust pipe cannot be adjusted, resulting in a limited scope of application. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an automatic exhaust valve, which can fully adjust the exhaust angle of the exhaust pipe and has a wider range of use.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: an automatic exhaust valve, comprising a valve body, the valve body comprising a liquid inlet pipe, a liquid outlet pipe and an exhaust pipe, the exhaust pipe comprising a pipe body, a float, a limit plate and an exhaust assembly, the limit plate is transversely installed in the inner cavity of the pipe body and divides the inner cavity into an operating cavity and a floating cavity, the float is slidably connected to the floating cavity;

[0007] The limiting plate is provided with a plurality of groups of air holes, which are arranged equidistantly along the circumference of the limiting plate;

[0008] The exhaust assembly is connected to the operating cavity by rotating along the circumference of the tube body. The exhaust assembly includes a connecting rod with an "L"-shaped structure. An exhaust groove is penetrated through the connecting rod. The connecting rod is used to align with an air hole thereof.

[0009] In summary, the utility model has the following beneficial effects: the direction of the L-shaped connecting rod is adjusted by rotating the exhaust assembly, thereby playing a role in controlling the exhaust direction of the gas.

[0010] By making the exhaust groove on the connecting rod correspond to the air vent hole, the gas in the valve body can be discharged to a specified direction through the connecting rod.

[0011] A threaded structure is provided on the connecting rod, and the blocking cover is threadedly connected to the connecting rod. The direction of the exhaust hole can be adjusted by rotating the blocking cover, thereby controlling the exhaust direction.

[0012] The rotation direction of the connecting rod is horizontal circumferential, and the rotation direction of the blocking cover is vertical circumferential, which can meet various usage conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the automatic exhaust valve;

[0014] Figure 2 A schematic diagram of a three-dimensional structure with the cover separated;

[0015] Figure 3 A cross-sectional view of the exhaust pipe.

[0016] Figure numerals: 1. valve body; 11. liquid inlet pipe; 12. liquid outlet pipe; 13. exhaust pipe; 2. pipe body; 21. operating chamber; 22. floating chamber; 23. limit block; 24. limit area; 3. floating block; 4. limit plate; 41. air vent; 42. sliding groove; 5. exhaust assembly; 51. connecting rod; 52. mounting cover; 53. rotating block; 6. sealing cover; 61. exhaust hole; 7. first rod body; 8. second rod body; 9. guide rod. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The same parts are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "bottom surface" and "top surface", "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0018] Reference Figures 1 to 3 As shown, an automatic exhaust valve includes a valve body 1, the valve body 1 includes a liquid inlet pipe 11, a liquid outlet pipe 12 and an exhaust pipe 13, the exhaust pipe 13 includes a pipe body 2, a float 3, a limit plate 4 and an exhaust assembly 5, the limit plate 4 is transversely installed in the inner cavity of the pipe body 2, and divides the inner cavity into an operating cavity 21 and a floating cavity 22, and the float 3 is slidably connected in the floating cavity 22;

[0019] The limiting plate 4 is provided with a plurality of groups of air holes 41, which are arranged equidistantly along the circumference of the limiting plate 4;

[0020] The exhaust assembly 5 is connected to the operating chamber 21 along the circumferential rotation of the tube body 2. The exhaust assembly 5 includes a connecting rod 51 arranged in an "L" shape. An exhaust groove is penetrated on the connecting rod 51. The connecting rod 51 is used to align with an air hole 41 thereof.

[0021] The design of the utility model adjusts the direction of the L-shaped connecting rod 51 by rotating the exhaust assembly 5, thereby controlling the exhaust direction of the gas.

[0022] Furthermore, the exhaust groove on the connecting rod 51 corresponds to the air vent 41 , so that the gas in the valve body 1 can be exhausted to a designated direction through the connecting rod 51 .

[0023] Embodiment 1: The connecting rod 51 is also provided with an air hole connected to the exhaust groove on the peripheral side of the operating chamber 21, so that the gas in the operating chamber 21 is discharged from the exhaust groove through the air hole;

[0024] Embodiment 2: A blocking plate is provided at the lower end of the connecting rod 51 to block the remaining air holes 41 that are not connected to the exhaust groove, so that the gas in the floating cavity 22 can only be discharged through the exhaust groove.

[0025] The exhaust assembly 5 also includes a mounting cover 52, which is rotatably connected to the upper end of the pipe body 2, and the connecting rod 51 is fixedly connected to the mounting cover 52. The design of the mounting cover 52 is as follows: Figure 3 As shown, the mounting cover 52 is rotatably connected to the upper end of the tube body 2, and a sealing structure is provided between the mounting cover 52 and the tube body 2 to prevent gas leakage.

[0026] The inner wall of the operating cavity 21 is provided with a plurality of groups of limit blocks 23, and the limit blocks 23 are arranged equidistantly along the circumference of the tube body 2, and a limit area 24 is formed between two limit blocks 23;

[0027] A rotating block 53 is disposed on the inner wall of the installation cover 52 . The rotating block 53 is inserted into a limiting area 24 during the rotation of the installation cover 52 .

[0028] In the design of this structure, the rotating block 53 and the limiting block 23 are both arranged in an arc-shaped structure. There can be a sense of jamming during the rotation of the installation cover 52, and when the rotating block 53 is embedded in the limiting area 24, a limiting fit can be formed to avoid accidental rotation of the installation cover 52.

[0029] The limiting area 24 and the vent holes 41 are provided with the same array, and the position of the limiting area 24 and the position of the vent holes 41 are provided in a one-to-one correspondence. With this structural design, when the rotating block 53 is embedded in the limiting area 24, the connecting rod 51 can be aligned with the vent holes 41 to ensure the stability of gas circulation.

[0030] There are multiple groups of rotating blocks 53, and they are arranged one-to-one corresponding to the limiting areas 24. The design of this structure can enhance the strength of the limiting.

[0031] The end of the connecting rod 51 away from the tube body 2 is detachably connected to a blocking cap 6, which is rotatably connected to the connecting rod 51, and is provided with an exhaust hole 61. In the design of the structure, a threaded structure is provided on the connecting rod 51, and the blocking cap 6 is threadedly connected to the connecting rod 51. By rotating the blocking cap 6, the direction of the exhaust hole 61 can be adjusted, thereby controlling the exhaust direction.

[0032] like Figure 1 As shown, the rotation direction of the connecting rod 51 is horizontal circumferential, and the rotation direction of the blocking cover 6 is vertical circumferential, which can meet various usage conditions.

[0033] The connecting rod 51 includes a first rod body 7 and a second rod body 8. The second rod body 8 is located outside the tube body 2 and is made of rubber. The design of this structure can adjust the direction by bending the second rod body 8, so that it can be connected to other external air pipes, which is flexible and easy to use.

[0034] The limiting plate 4 is provided with a sliding groove 42 , and one end of the connecting rod 51 is slidably connected in the sliding groove 42 .

[0035] The design of this structure can play a role in sliding guidance and ensure the stability of the installation of the connecting rod 51.

[0036] A guide rod 9 is provided in the floating cavity 22, and the floating block 3 is connected to the guide rod 9. Figure 3 As shown, when liquid is introduced into the valve body 1, the float block 3 moves upward along the guide rod 9, so that the gas in the float chamber 22 flows from the corresponding vent hole 41 to the exhaust groove until it is discharged along the connecting rod 51;

[0037] When the liquid level drops, the float block 3 moves downward along the guide rod 9, the filling space in the float cavity 22 increases, and the external gas is sucked into the float cavity 22 by the connecting rod 51 to ensure the safety of the cavity.

[0038] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. An automatic exhaust valve, comprising a valve body (1), wherein the valve body (1) comprises a liquid inlet pipe (11), a liquid outlet pipe (12) and an exhaust pipe (13), wherein: The exhaust pipe (13) comprises a pipe body (2), a floating block (3), a limiting plate (4) and an exhaust assembly (5); the limiting plate (4) is transversely installed in the inner cavity of the pipe body (2) and divides the inner cavity into an operating cavity (21) and a floating cavity (22); the floating block (3) is slidably connected in the floating cavity (22); The limiting plate (4) is provided with a plurality of groups of air holes (41), which are arranged at equal intervals along the circumference of the limiting plate (4); The exhaust assembly (5) is connected to the operating chamber (21) in a rotatable manner along the circumference of the tube body (2). The exhaust assembly (5) comprises a connecting rod (51) arranged in an "L"-shaped structure. An exhaust groove is provided through the connecting rod (51). The connecting rod (51) is used to align with an air hole (41) thereof.

2. An automatic exhaust valve according to claim 1, characterized in that: The exhaust assembly (5) further comprises a mounting cover (52), wherein the mounting cover (52) is rotatably connected to the upper end of the pipe body (2), and the connecting rod (51) is fixedly connected to the mounting cover (52).

3. An automatic exhaust valve according to claim 2, characterized in that: The inner wall of the operating cavity (21) is provided with a plurality of groups of limit blocks (23), the limit blocks (23) are arranged equidistantly along the circumference of the tube body (2), and a limit area (24) is formed between two limit blocks (23); The inner wall of the installation cover (52) is provided with a rotating block (53), and the rotating block (53) is inserted into a limiting area (24) during the rotation of the installation cover (52).

4. An automatic exhaust valve according to claim 3, characterized in that: The limiting area (24) and the ventilation holes (41) are arranged in the same array, and the positions of the limiting area (24) and the positions of the ventilation holes (41) are arranged in a one-to-one correspondence.

5. The automatic exhaust valve according to claim 3, characterized in that: The rotating blocks (53) are arranged in multiple groups and are arranged in one-to-one correspondence with the limiting areas (24).

6. The automatic exhaust valve according to claim 1, characterized in that: One end of the connecting rod (51) away from the tube body (2) is detachably connected to a blocking cover (6), the blocking cover (6) is rotatably connected to the connecting rod (51), and the blocking cover (6) is provided with an exhaust hole (61).

7. The automatic exhaust valve according to claim 1, characterized in that: The connecting rod (51) comprises a first rod body (7) and a second rod body (8); the second rod body (8) is located outside the tube body (2) and is made of rubber material.

8. An automatic exhaust valve according to any one of claims 1 to 7, characterized in that: The limiting plate (4) is provided with a sliding groove (42), and one end of the connecting rod (51) is slidingly connected in the sliding groove (42).

9. An automatic exhaust valve according to any one of claims 1 to 7, characterized in that: A guide rod (9) is arranged in the floating cavity (22), and the floating block (3) is connected to the guide rod (9).

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