Novel exhaust valve

Abstract

The utility model relates to the technical field of exhaust valves for heating pipelines, in particular to a novel exhaust valve which is characterized in that when the novel exhaust valve is used, a lower shell is mounted on a pipeline, when air enters the shell, the liquid level in the shell is lowered, and when the liquid level is lowered, an exhaust component is automatically opened, so that the air in the shell is exhausted, and the air in the shell is exhausted. Along with reduction of air in the shell, the liquid level of water in the shell rises, so that the exhaust assembly is automatically closed, automatic exhaust is achieved, and sensitivity is improved; comprising a lower shell, an upper shell and a positioning opening, the upper shell is arranged at the top end of the lower shell, the positioning opening is formed in the top end of the upper shell, the exhaust assembly is installed on the upper shell under positioning cooperation of the positioning opening, and the lower shell and the upper shell form a shell.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust valves for heating pipes, in particular to a novel exhaust valve. Background Art

[0002] Automatic exhaust valve is a common valve in HVAC system, usually installed in the position of the system where gas is likely to accumulate. One end of this valve is connected to the relatively high point of the system, and the other end is open and directly connected to the atmosphere. When there is air in the exhaust valve, it needs to be able to discharge the air into the air in time. On the contrary, when there is no gas in the exhaust valve, the exhaust valve should be automatically closed and cannot leak.

[0003] In the prior art, the patent document with the announcement number CN202733133U discloses a circular automatic exhaust valve, including an upper valve cover connected to a lower valve body by bolts, a valve core body installed on the upper part of the upper valve cover, and an ejector pin arranged on the inner side of the valve core body. The upper part of the ejector pin is cone-shaped, and the upper part of the ejector pin is connected to the silicone column in the upper part of the valve core body during operation. The silicone column is a cylinder with a hole in the middle, and the lower part is a plane, and the middle hole is provided with an inclined surface. The elliptical float is welded by two semicircular stretching bodies. A connecting piece is provided at the lower middle part of the lower valve body. A retaining screen edge may be provided inside the connecting piece, and a filter screen is provided at the lower part of the retaining screen edge. The filter screen is made of a stainless steel fine mesh, and the filter screen has a plastic edge. There are grooves and sealing rings on the inner side of the connecting piece and the connecting hole, and an integrated cover nut is provided on the upper part of the connecting piece.

[0004] During use, it was found that the sensitivity of the float ball driving the ejector pin to float up and down for exhaust was poor, and the timeliness of automatic exhaust needed to be further improved. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a new exhaust valve with improved sensitivity.

[0006] The utility model discloses a novel exhaust valve, comprising a lower shell, an upper shell and a positioning port, wherein the upper shell is arranged at the top end of the lower shell, the positioning port is arranged at the top end of the upper shell, and the exhaust component is also included, the exhaust component is installed on the upper shell in the positioning cooperation of the positioning port, and the lower shell and the upper shell form a shell; when in use, the lower shell is installed on the pipeline, when air enters into the shell, the liquid level in the shell will drop, when the liquid level drops, the exhaust component automatically opens, so that the air inside the shell is discharged, as the air inside the shell decreases, the liquid level of water in the shell rises, so that the exhaust component is automatically closed, automatic exhaust is realized, and sensitivity is improved.

[0007] Preferably, the exhaust assembly includes a support, a base, a top seat, a notch, an exhaust groove, a flat end, a nut and a sealing assembly, the support is provided with a base at the bottom end, the support is provided with a top seat at the top end, the base is provided with a notch at the bottom end, the notch divides the base into two, the bottom end of the base is provided with an exhaust groove, the top end of the top seat is provided with an exhaust port, the exhaust port is communicated with the exhaust groove, the cross-sectional area of ​​the exhaust port is smaller than the cross-sectional area of ​​the exhaust groove, the outer side wall of the top seat is provided with a threaded portion, the outer side wall of the top seat is symmetrically provided with flat ends, the nut is threadedly connected to the threaded portion, and a sealing assembly is provided inside the exhaust groove; the top seat is passed through the positioning port from the inner side of the upper shell body with the cooperation of the flat end, and then the nut is threadedly connected to the threaded portion on the top seat, when air enters the shell body, the water level in the shell body drops, so that the sealing assembly is away from the exhaust port, and the air in the shell body is discharged outside through the exhaust groove and the exhaust port, as the air in the shell body decreases, the water level in the shell body rises, and the sealing assembly rises in the exhaust groove, so that the sealing assembly seals the exhaust port, realizes automatic exhaust, and improves convenience.

[0008] Preferably, the sealing assembly includes a pin, a cantilever, a protrusion, a hook, a hexagonal prism, a socket and a float assembly, a pin is arranged in the slot, the pin is rotatably connected to the cantilever, the cantilever is U-shaped, a protrusion is arranged at one end of the cantilever, a hook is arranged at the other end of the cantilever, a hexagonal prism is slidably arranged in the exhaust groove, a socket is arranged on the outer wall of the hexagonal prism, the protrusion extends into the socket, and a float assembly is arranged on the hook; when in use, the hexagonal prism is inserted into the exhaust groove, and then the cantilever is swung so that the protrusion is inserted into the socket, thereby completing the installation of the hexagonal prism, the top seat is inserted into the positioning port, and the inner side wall of the upper shell limits the outer end of the cantilever to prevent the cantilever from being vertical and further prevent the hexagonal prism from being separated from the exhaust groove. When air enters the body, the water level in the shell drops, and the float assembly pulls the hook part to move downward, so that the cantilever drives the raised part to move downward with the cooperation of the raised part, so that the raised part drives the hexagonal prism to move downward in the exhaust groove through the insertion hole, and the top of the hexagonal prism is away from the exhaust port, so that the air in the shell is discharged through the gap between the exhaust groove and the hexagonal prism and the exhaust port. When the air decreases, the water level in the shell rises, and the float assembly drives the hook part to rise, so that the raised part drives the hexagonal prism to rise through the insertion hole, so that the top of the hexagonal prism is sealed to the exhaust port. The U-shaped characteristics of the cantilever make full use of the lever principle, improve the sensitivity of the hexagonal prism to rise and fall, and realize rapid exhaust.

[0009] Preferably, the float assembly includes a float, a No. 1 hanging ring, a No. 2 hanging ring, a hook and a pendulum. The No. 1 hanging ring is provided at the top of the float, the No. 2 hanging ring is provided at the bottom of the float, and the hook is provided at the top of the pendulum. The No. 1 hanging ring is hooked and connected to the hook part, and the hook is hooked and connected to the No. 2 hanging ring; the No. 1 hanging ring on the float is hooked and connected to the hook part, and the hook on the pendulum is hooked and connected to the No. 2 hanging ring on the float. The operation is simple and the assembly is convenient. The pendulum not only acts as a counterweight, but also swings on both sides, so that the float is not easy to be still.

[0010] Preferably, the float and the pendulum are both hemispherical; the float and the hook are hemispherical, and the bottom plane ends of the float and the hook are adapted to the water surface to improve sensitivity.

[0011] Preferably, a sealing gasket is further included, and a sealing gasket is provided at the top of the hexagonal prism; the hexagonal prism seals the exhaust port through the sealing gasket to improve the sealing performance.

[0012] Compared with the prior art, the utility model has the following beneficial effects: when in use, the lower shell is installed on the pipeline, and when air enters the shell, the liquid level in the shell will drop. When the liquid level drops, the exhaust component automatically opens to discharge the air inside the shell. As the air inside the shell decreases, the water level in the shell rises, so that the exhaust component automatically closes, thereby achieving automatic exhaust and improving sensitivity. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the axonometric structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0015] Figure 3 It is an enlarged structural diagram of the support, float and other structures;

[0016] Figure 4 It is a schematic diagram of the exploded structure of the support and float etc.;

[0017] Figure 5 It is a schematic diagram of the cross-sectional structure of the support and top seat;

[0018] Figure 6 It is an enlarged structural schematic diagram of structures such as hexagonal prisms and cantilevers.

[0019] Markings in the attached drawings: 1. lower shell; 2. upper shell; 3. positioning port; 4. support; 5. base; 6. top seat; 7. notch; 8. exhaust groove; 9. flat end; 10. nut; 11. pin; 12. cantilever; 13. raised portion; 14. hook portion; 15. hexagonal prism; 16. socket; 17. float; 18. No. 1 hanging ring; 19. No. 2 hanging ring; 20. hook; 21. pendulum; 22. sealing gasket. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0021] Example 1

[0022] like Figures 1 to 6 As shown, a novel exhaust valve of the utility model comprises a lower shell 1, an upper shell 2 and a positioning port 3, wherein the upper shell 2 is provided at the top of the lower shell 1, and the positioning port 3 is provided at the top of the upper shell 2, and further comprises an exhaust assembly, which is mounted on the upper shell 2 under the positioning cooperation of the positioning port 3, and the lower shell 1 and the upper shell 2 form a shell;

[0023] The exhaust assembly includes a support 4, a base 5, a top seat 6, a notch 7, an exhaust groove 8, a flat end 9, a nut 10 and a sealing assembly. The bottom end of the support 4 is provided with a base 5, the top seat 6 is provided at the top of the support 4, the bottom end of the base 5 is provided with a notch 7, the notch 7 divides the base 5 into two, the bottom end of the base 5 is provided with an exhaust groove 8, the top end of the top seat 6 is provided with an exhaust port, the exhaust port is communicated with the exhaust groove 8, the cross-sectional area of ​​the exhaust port is smaller than the cross-sectional area of ​​the exhaust groove, the outer side wall of the top seat 6 is provided with a threaded portion, the outer side wall of the top seat 6 is symmetrically provided with a flat end 9, the nut 10 is threadedly connected with the threaded portion, and a sealing assembly is provided inside the exhaust groove 8;

[0024] The sealing assembly includes a pin 11, a cantilever 12, a protrusion 13, a hook portion 14, a hexagonal prism 15, a socket 16 and a float assembly. The pin 11 is arranged in the groove 7, and the pin 11 is rotatably connected to the cantilever 12. The cantilever 12 is U-shaped, and a protrusion 13 is arranged at one end of the cantilever 12, and a hook portion 14 is arranged at the other end of the cantilever 12. A hexagonal prism 15 is slidably arranged in the exhaust groove 8, and a socket 16 is arranged on the outer wall of the hexagonal prism 15. The protrusion 13 extends into the socket 16, and a float assembly is arranged on the hook portion 14.

[0025] In this embodiment, when in use, the hexagonal prism 15 is inserted into the exhaust groove 8, and then the cantilever 12 is swung so that the protrusion 13 is inserted into the insertion hole 16, thereby completing the installation of the hexagonal prism 15, and the top seat 6 is passed through the positioning port 3 from the inner side of the upper shell 2 with the cooperation of the flat end 9, and then the nut 10 is threadedly connected with the threaded portion on the top seat 6, and the inner side wall of the upper shell 2 limits the outer end of the cantilever 12 to prevent the cantilever 12 from being vertically further preventing the hexagonal prism 15 from being separated from the exhaust groove 8. When air enters the shell, the water level in the shell drops, and the float assembly pulls the hook portion 14 to move downward, so that the cantilever 12 cooperates with the protrusion 13. The protrusion 13 is driven downward to move downward, so that the protrusion 13 drives the hexagonal prism 15 to move downward in the exhaust groove 8 through the socket 16, and the top of the hexagonal prism 15 is away from the exhaust port, so that the air in the shell is discharged through the gap between the exhaust groove 8 and the hexagonal prism 15 and the exhaust port. When the air is reduced, the water level in the shell rises, and the float assembly drives the hook part 14 to rise, so that the protrusion 13 drives the hexagonal prism 15 to rise through the socket 16, so that the top of the hexagonal prism 15 is sealed to the exhaust port. The U-shaped characteristics of the cantilever 12 make full use of the lever principle, improve the sensitivity of the hexagonal prism 15 to rise and fall, and achieve rapid exhaust.

[0026] Example 2

[0027] like Figures 1 to 6 As shown, a novel exhaust valve of the utility model comprises a lower shell 1, an upper shell 2 and a positioning port 3, wherein the upper shell 2 is provided at the top of the lower shell 1, and the positioning port 3 is provided at the top of the upper shell 2, and further comprises an exhaust assembly, which is mounted on the upper shell 2 under the positioning cooperation of the positioning port 3, and the lower shell 1 and the upper shell 2 form a shell;

[0028] The exhaust assembly includes a support 4, a base 5, a top seat 6, a notch 7, an exhaust groove 8, a flat end 9, a nut 10 and a sealing assembly. The bottom end of the support 4 is provided with a base 5, the top seat 6 is provided at the top of the support 4, the bottom end of the base 5 is provided with a notch 7, the notch 7 divides the base 5 into two, the bottom end of the base 5 is provided with an exhaust groove 8, the top end of the top seat 6 is provided with an exhaust port, the exhaust port is communicated with the exhaust groove 8, the cross-sectional area of ​​the exhaust port is smaller than the cross-sectional area of ​​the exhaust groove, the outer side wall of the top seat 6 is provided with a threaded portion, the outer side wall of the top seat 6 is symmetrically provided with a flat end 9, the nut 10 is threadedly connected with the threaded portion, and a sealing assembly is provided inside the exhaust groove 8;

[0029] The sealing assembly includes a pin 11, a cantilever 12, a protrusion 13, a hook portion 14, a hexagonal prism 15, a socket 16 and a float assembly. The pin 11 is arranged in the notch 7, and the pin 11 is rotatably connected with the cantilever 12. The cantilever 12 is U-shaped, and a protrusion 13 is arranged at one end of the cantilever 12, and a hook portion 14 is arranged at the other end of the cantilever 12. A hexagonal prism 15 is slidably arranged in the exhaust groove 8, and a socket 16 is arranged on the outer wall of the hexagonal prism 15. The protrusion 13 extends into the socket 16, and a float assembly is arranged on the hook portion 14;

[0030] like Figure 6 As shown, the float assembly includes a float 17, a No. 1 hanging ring 18, a No. 2 hanging ring 19, a hook 20 and a pendulum 21. The No. 1 hanging ring 18 is arranged at the top of the float 17, the No. 2 hanging ring 19 is arranged at the bottom of the float 17, and the hook 20 is arranged at the top of the pendulum 21. The No. 1 hanging ring 18 is hooked and connected with the hook part 14, and the hook 20 is hooked and connected with the No. 2 hanging ring 19;

[0031] It also includes a sealing gasket 22 , and a sealing gasket 22 is disposed on the top of the hexagonal prism 15 .

[0032] In this embodiment, when in use, the hexagonal prism 15 is inserted into the exhaust groove 8, and then the cantilever 12 is swung so that the protrusion 13 is inserted into the socket 16, thereby completing the installation of the hexagonal prism 15, and the top seat 6 is passed through the positioning port 3 from the inner side of the upper shell 2 with the cooperation of the plane end 9, and then the nut 10 is threadedly connected with the threaded portion on the top seat 6, and the inner side wall of the upper shell 2 limits the outer end of the cantilever 12 to prevent the cantilever 12 from being vertical and further prevent the hexagonal prism 15 from being separated from the exhaust groove 8. When air enters the shell, the water level in the shell drops, and the float assembly pulls the hook portion 14 to move downward, so that the cantilever 12 drives the protrusion 13 to move downward with the cooperation of the protrusion 13, so that the protrusion 13 drives the hexagonal prism 15 to move downward in the exhaust groove 8 through the socket 16. The top of the hexagonal prism 15 is away from the exhaust port, so that the air in the shell is discharged through the gap between the exhaust groove 8 and the hexagonal prism 15 and the exhaust port. When the air is reduced, the water level in the shell rises, and the float assembly drives the hook part 14 to rise, so that the protrusion 13 drives the hexagonal prism 15 to rise through the socket 16, so that the top of the hexagonal prism 15 is sealed to the exhaust port. The U-shaped characteristics of the cantilever 12 make full use of the lever principle to improve the sensitivity of the hexagonal prism 15 to rise and fall, and realize rapid exhaust. The No. 1 hanging ring 18 on the float 17 is hooked and connected with the hook part 14, and the hook 20 on the pendulum 21 is hooked and connected with the No. 2 hanging ring 19 on the float 17. The operation is simple and the assembly is convenient. The pendulum not only acts as a counterweight, but also swings on both sides, so that the float is not easy to be still.

[0033] The utility model provides a new exhaust valve, the cross section of the plug hole 16 is larger than the cross section of the protrusion 13; the cantilever 12 and the hexagonal prism 15 of the new exhaust valve of the utility model are purchased on the market, and the technicians in the industry only need to install and operate them according to the accompanying instruction manual, without the need for the technicians in this field to make creative labor.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A novel exhaust valve, comprising a lower shell (1), an upper shell (2) and a positioning port (3), wherein the upper shell (2) is disposed at the top of the lower shell (1), and the positioning port (3) is disposed at the top of the upper shell (2), wherein the characteristic is that: It also includes an exhaust assembly, which is installed on the upper shell (2) under the positioning cooperation of the positioning opening (3), and the lower shell (1) and the upper shell (2) form a shell.

2. A novel exhaust valve as claimed in claim 1, characterized in that: The exhaust assembly comprises a support (4), a base (5), a top seat (6), a notch (7), an exhaust groove (8), a flat end (9), a nut (10) and a sealing assembly. The support (4) is provided with a base (5) at the bottom end, the support (4) is provided with a top seat (6) at the top end, the base (5) is provided with a notch (7) at the bottom end, the notch (7) divides the base (5) into two parts, the base (5) is provided with an exhaust groove (8) at the bottom end, the top seat (6) is provided with an exhaust port at the top end, the exhaust port is communicated with the exhaust groove (8), the cross-sectional area of ​​the exhaust port is smaller than the cross-sectional area of ​​the exhaust groove, the outer wall of the top seat (6) is provided with a threaded portion, the outer wall of the top seat (6) is symmetrically provided with a flat end (9), the nut (10) is threadedly connected with the threaded portion, and the exhaust groove (8) is provided with a sealing assembly.

3. A novel exhaust valve as claimed in claim 2, characterized in that: The sealing assembly comprises a pin shaft (11), a cantilever (12), a protrusion (13), a hook portion (14), a hexagonal prism (15), a socket (16) and a floating ball assembly. The pin shaft (11) is arranged in the notch (7), the pin shaft (11) is rotatably connected with the cantilever (12), the cantilever (12) is U-shaped, one end of the cantilever (12) is arranged with a protrusion (13), the other end of the cantilever (12) is arranged with a hook portion (14), a hexagonal prism (15) is slidably arranged in the exhaust groove (8), the outer side wall of the hexagonal prism (15) is arranged with a socket (16), the protrusion (13) extends into the socket (16), and the floating ball assembly is arranged on the hook portion (14).

4. A novel exhaust valve as claimed in claim 3, characterized in that: The float assembly comprises a float (17), a first hanging ring (18), a second hanging ring (19), a hook (20) and a pendulum (21). The first hanging ring (18) is arranged at the top of the float (17), the second hanging ring (19) is arranged at the bottom of the float (17), the hook (20) is arranged at the top of the pendulum (21), the first hanging ring (18) is hooked and connected to the hook part (14), and the hook (20) is hooked and connected to the second hanging ring (19).

5. A novel exhaust valve as claimed in claim 4, characterized in that: The floating ball (17) and the pendulum (21) are both hemispherical.

6. A novel exhaust valve as claimed in claim 3, characterized in that: It also comprises a sealing gasket (22), and the top end of the hexagonal prism (15) is provided with a sealing gasket (22).

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