Elastic exhaust valve

Abstract

The utility model provides an elastic exhaust valve, and belongs to the technical field of exhaust valves. The elastic exhaust valve comprises a valve body assembly and an exhaust assembly, the valve body assembly comprises a lower valve body, an upper valve cover, a limiting ring and a locking bolt, the lower valve body is sleeved with the upper valve cover in a threaded mode, the exhaust assembly comprises an exhaust barrel, a valve rod, a floating body, a valve element, a fixing rod, a spring and a connecting piece, and the exhaust barrel is arranged at the top of the upper valve cover in a communicating mode; through the arrangement of the lower valve body, the upper valve cover, the limiting ring and the locking bolt, the upper valve cover can be conveniently and rapidly disassembled and assembled, the locking bolt is used for locking the connected upper valve cover again, the connection tightness is guaranteed, through the arrangement of the exhaust cylinder, the valve rod, the floating body, the valve element, the fixing rod, the spring and the connecting piece, the spring and the connecting piece are arranged on the outer top of the valve body, and the exhaust cylinder is arranged on the floating body. Corrosion of internal humid gas is effectively avoided, meanwhile, disassembly, assembly and maintenance are convenient, and practicability is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of exhaust valves, in particular, to an elastic exhaust valve. BACKGROUND

[0002] The exhaust valve is mainly applied to pipeline exhaust of independent heating system, central heating system, heating boiler, central air conditioning, floor heating and solar heating system, etc. Because air is usually dissolved in water, and the solubility of air decreases with the increase of temperature, the gas gradually separates from the water during the circulation of water, and gradually gathers together to form large bubbles or even air columns. Because of the replenishment of water, gas is often produced. In order to ensure the normal operation of the water heating pipeline, an exhaust valve is installed at the highest point of the pipeline branch.

[0003] The publication number CN222616116U discloses a vertical automatic exhaust valve. The exhaust valve is installed at the high point of the pipeline. In the state that the pipeline has no water, the floating ball sinks, the gravity of the floating ball is greater than the spring force, the spring is compressed, the position of the valve core moves downward after the spring is compressed, the air hole is opened, the valve cap is screwed to make the exhaust hole communicate with the valve cover, and the gas enters the exhaust valve from the lower part when the pipeline is filled with water, flows through the groove of the floating ball into the valve cover, and is finally discharged from the exhaust hole. At this time, the exhaust valve is in a fast and large exhaust state.

[0004] However, the above-mentioned scheme has some defects: the spring is arranged to reset the upward floating ball, but the spring arranged in the valve is easily corroded under the long-term erosion of humid gas, which causes the spring to lose its function. Moreover, the connection between most valve bodies is through multiple bolts, which is relatively troublesome and low in efficiency. Content of the utility model

[0005] In order to make up for the above shortcomings, the present application provides an elastic exhaust valve, which aims to improve the problems in the above background technology.

[0006] The elastic exhaust valve provided by the present application comprises a valve body assembly and an exhaust assembly.

[0007] The valve body assembly comprises a lower valve body, an upper valve cover, a limiting ring and a locking bolt, the upper valve cover is threadedly sleeved on the lower valve body, the limiting ring is fixedly connected to the lower valve body, and the locking bolt is threadedly connected with the upper valve cover and the limiting ring.

[0008] The exhaust assembly comprises an exhaust cylinder, a valve rod, a floating body, a valve core, a fixed rod, a spring and a connecting piece, the exhaust cylinder is communicatively arranged at the top of the upper valve cover, the valve rod slidably penetrates through the exhaust cylinder, the floating body is fixedly connected to the valve rod, the valve core is fixedly sleeved on the valve rod, the fixed rod is fixedly connected to the top end of the exhaust cylinder, the spring is sleeved on the fixed rod, and the connecting piece is installed at the top end of the fixed rod and slidably sleeved on the fixed rod.

[0009] In one specific implementation, the upper valve cover is fixedly connected with an internally threaded cylinder, the upper valve cover is threadedly connected to the outside of the lower valve body, the locking bolt penetrates the limiting ring, and the locking bolt is threadedly connected to the end of the internally threaded cylinder.

[0010] In the above implementation process, by setting the internally threaded cylinder integrally formed with the internally threaded cylinder, the upper valve cover can be integrally threadedly sleeved on the lower valve body, and the locking bolt is then penetrated through the limiting ring and mounted to the end of the internally threaded cylinder to limit the relative rotation of the internally threaded cylinder and the lower valve body, thereby ensuring the tightness of the connection.

[0011] In one specific implementation, the exhaust cylinder is provided with an exhaust port and embedded with a filter screen.

[0012] In the above implementation process, by setting the exhaust port and the filter screen, the exhaust valve is used for exhausting or inhaling air from the outside, and the filter screen can filter out larger particulate impurities.

[0013] In one specific implementation, the exhaust cylinder is threadedly connected with a sealing cylinder, and the sealing cylinder is close to the filter screen.

[0014] In the above implementation process, by setting the sealing cylinder, the sealing cylinder can be moved upward by rotating the sealing cylinder when not in use, so as to block the exhaust port.

[0015] In one specific implementation, the float body is cylindrical, and the float body is provided with a plurality of through holes.

[0016] In the above implementation process, by providing a plurality of through holes, the gas can pass through.

[0017] In one specific implementation, the valve core is trapezoidal, and the exhaust cylinder is provided with an exhaust hole inside, and the valve core and the exhaust hole are matched.

[0018] In the above implementation process, by setting the trapezoidal valve core and the matched exhaust hole, the valve core can block the exhaust hole after exhausting.

[0019] In one specific implementation, the connecting piece includes a sliding plate and a connecting nut, the sliding plate is slidably sleeved on the fixed rod, the valve rod penetrates the sliding plate, and the connecting nut is threadedly sleeved on the top end of the valve rod.

[0020] In the above implementation process, by setting the sliding plate and the connecting nut, the valve rod can be conveniently disassembled by disassembling the connecting nut, thereby facilitating maintenance and replacement.

[0021] In one specific implementation, the lower valve body is provided with a connecting pipe in communication, and the connecting pipe is provided with a flange plate.

[0022] In the implementation process, the connecting pipe and the flange plate are arranged to connect the pipeline requiring exhaust.

[0023] Beneficial effects: the elastic exhaust valve provided by the application can conveniently and quickly disassemble and assemble the upper valve cover, and lock the assembled upper valve cover through the locking bolt, so as to ensure the tightness of the connection, and the spring and the connecting piece are arranged at the outer top of the valve body, which effectively avoids the corrosion of the internal humid gas, and facilitates disassembly and assembly and maintenance, and greatly improves the practicability. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the application, and therefore should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor.

[0025] Figure 1 is a structure diagram of the elastic exhaust valve provided by the embodiments of the application;

[0026] Figure 2 is a structure diagram of the valve body assembly provided by the embodiments of the application;

[0027] Figure 3 is a structure diagram of the float provided by the embodiments of the application;

[0028] Figure 4 is a structure diagram of the connecting piece provided by the embodiments of the application.

[0029] In the drawings: 100-valve body assembly; 110-lower valve body; 120-upper valve cover; 121-inner threaded cylinder; 130-limiting ring; 140-locking bolt; 150-connecting pipe; 200-exhaust assembly; 210-exhaust cylinder; 211-filter screen; 212-sealing cylinder; 213-exhaust hole; 220-valve rod; 230-float; 231-through hole; 240-valve core; 250-fixing rod; 260-spring; 270-connecting piece; 271-sliding plate; 272-connecting nut. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application, and obviously, the described embodiments are only some of the embodiments of the application, but not all the embodiments.

[0031] Please refer to Figures 1-4The application provides an elastic exhaust valve which comprises a valve body assembly 100 and an exhaust assembly 200.

[0032] Please refer to Figure 1 and 2 The valve body assembly 100 comprises a lower valve body 110, an upper valve cover 120, a limiting ring 130 and a locking bolt 140, the upper valve cover 120 is threadedly sleeved on the lower valve body 110, the limiting ring 130 is fixedly connected to the lower valve body 110, and the locking bolt 140 is threadedly connected between the upper valve cover 120 and the limiting ring 130.

[0033] The upper valve cover 120 is fixedly connected with an internally-threaded cylinder 121, the upper valve cover 120 is threadedly connected to the outside of the lower valve body 110, the locking bolt 140 penetrates through the limiting ring 130, and the locking bolt 140 is threadedly connected to the end of the internally-threaded cylinder 121, the internally-threaded cylinder 121 is integrally formed with the internally-threaded cylinder 121, the upper valve cover 120 is threadedly sleeved on the lower valve body 110 as a whole, the locking bolt 140 penetrates through the limiting ring 130 and is installed at the end of the internally-threaded cylinder 121, the relative rotation between the internally-threaded cylinder 121 and the lower valve body 110 is limited, and the tightness of the connection is ensured.

[0034] In a specific embodiment, the lower valve body 110 is in communication with a connecting pipe 150, and the connecting pipe 150 is provided with a flange, the connecting pipe 150 and the flange are arranged to connect a pipeline which needs to be exhausted.

[0035] Please refer to Figure 1 、 2 , 3 and 4, the exhaust assembly 200 comprises an exhaust cylinder 210, a valve rod 220, a float 230, a valve core 240, a fixed rod 250, a spring 260 and a connecting piece 270, the exhaust cylinder 210 is in communication with the top of the upper valve cover 120, the valve rod 220 penetrates through the exhaust cylinder 210 in a sliding mode, the float 230 is fixedly connected to the valve rod 220, the valve core 240 is fixedly sleeved on the valve rod 220, the fixed rod 250 is fixedly connected to the top end of the exhaust cylinder 210, the spring 260 is sleeved on the fixed rod 250, and the connecting piece 270 is installed at the top end of the fixed rod 250 and is sleeved on the fixed rod 250 in a sliding mode.

[0036] The exhaust cylinder 210 is provided with an exhaust port and is embedded with a filter screen 211, the exhaust port and the filter screen 211 are arranged to exhaust or inhale air for the exhaust valve and the outside, and the filter screen 211 can filter out larger particulate impurities.

[0037] Specifically, the exhaust cylinder 210 is threadedly connected with a sealing cylinder 212, the sealing cylinder 212 is close to the filter screen 211, and the sealing cylinder 212 is arranged to be moved upwards to block the exhaust port when not in use.

[0038] In this embodiment, the floating body 230 is cylindrical, and the floating body 230 is provided with a plurality of through holes 231, which are used for the passage of gas.

[0039] In a specific embodiment, the valve core 240 is trapezoidal, and the exhaust cylinder 210 is provided with an exhaust hole 213, which is matched with the valve core 240. The trapezoidal valve core 240 and the matched exhaust hole 213 are used for plugging the exhaust hole 213 by the valve core 240 after the exhaust.

[0040] It should be noted that the connecting piece 270 includes a sliding plate 271 and a connecting nut 272. The sliding plate 271 is slidingly sleeved on the fixed rod 250, and the valve rod 220 penetrates the sliding plate 271. The connecting nut 272 is threadedly sleeved on the top end of the valve rod 220. By arranging the sliding plate 271 and the connecting nut 272, the connecting nut 272 can be conveniently disassembled from the valve rod 220 in a disassembled manner, thereby facilitating maintenance and replacement.

[0041] The working principle of the elastic exhaust valve is as follows: during use, when the gas is exhausted, the valve rod 220 is driven downward by the gravity of the floating body 230, the fixed rod 250 is driven downward by the valve rod 220, the sliding plate 271 is driven to extrude the spring 260 by the sliding plate 271, and the valve core 240 is driven downward, so that the gas is exhausted from the exhaust hole 213 and then discharged to the outside through the exhaust port. By arranging the fixed rod 250 and the spring 260 at the top of the exhaust cylinder 210, the internal humid gas is effectively prevented from being corroded and rusted for a long time. In addition, the sliding plate 271 and the connecting nut 272 can be conveniently disassembled from the valve rod 220 in a disassembled manner, thereby facilitating maintenance and replacement. By arranging the internally threaded cylinder 121 in an integrated manner, the upper valve cover 120 can be threadedly sleeved on the lower valve body 110 as a whole, and then the locking bolt 140 is penetrated through the limiting ring 130 and installed at the end of the internally threaded cylinder 121, so as to limit the relative rotation of the internally threaded cylinder 121 and the lower valve body 110 and ensure the tightness of the connection.

[0042] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the involved claims.

Claims

1. An elastic exhaust valve, characterized by, The utility model relates to a valve body assembly (100), exhaust assembly (200) and connecting pipe (150) are provided, and the valve body assembly (100) includes lower valve body (110), upper valve cover (120), limit ring (130) and locking bolt (140), upper valve cover (120) is screwed on lower valve body (110), limit ring (130) is fixedly connected to lower valve body (110), locking bolt (140) is screwed on upper valve cover (120) and limit ring (130), exhaust assembly (200) includes exhaust cylinder (210), valve rod (220), float (230), valve core (240), fixed rod (250), spring (260) and connecting piece (270), exhaust cylinder (210) is communicated and is arranged on the top of upper valve cover (120), valve rod (220) is slidably penetrated exhaust cylinder (210), float (230) is fixedly connected to valve rod (220), valve core (240) is fixedly sleeved on valve rod (220), fixed rod (250) is fixedly connected to the top end of exhaust cylinder (210), spring (260) is sleeved on fixed rod (250), connecting piece (270) is installed on the top end of fixed rod (250) and is slidably sleeved on fixed rod (250). The upper valve cover (120) is fixedly connected with an internally threaded cylinder (121), the upper valve cover (120) is screwed on the outside of the lower valve body (110), the locking bolt (140) penetrates the limit ring (130), and the locking bolt (140) is screwed on the end of the internally threaded cylinder (121). The exhaust cylinder (210) is provided with an exhaust port and embedded with a filter screen (211).

2. A resilient vent valve according to claim 1, wherein The exhaust cylinder (210) is screwed with a sealing cylinder (212), and the sealing cylinder (212) is close to the filter screen (211).

3. A resilient vent valve according to claim 1, wherein The float (230) is in a cylindrical shape, and the float (230) is provided with a plurality of through holes (231).

4. A resilient vent valve according to claim 3, wherein The valve core (240) is in a trapezoidal shape, and the exhaust cylinder (210) is provided with an exhaust hole (213) inside, the valve core (240) and the exhaust hole (213) are matched.

5. A resilient vent valve according to claim 1, wherein The connecting piece (270) includes a sliding plate (271) and a connecting nut (272), the sliding plate (271) is slidably sleeved on the fixed rod (250), the valve rod (220) penetrates the sliding plate (271), and the connecting nut (272) is screwed on the top end of the valve rod (220).

6. A resilient vent valve according to claim 1, wherein The lower valve body (110) is provided with a connecting pipe (150), and the connecting pipe (150) is provided with a flange plate.

7. A resilient vent valve according to claim 1, wherein ​ 8. A resilient vent valve according to claim 1, wherein ​

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