Exhaust valve and water conveying pipeline

Abstract

The utility model discloses an exhaust valve and a water conveying pipeline, and relates to the technical field of water conveying. The exhaust valve comprises a valve body, an impeller, a spiral shaft and an exhaust piece. The valve body is provided with a water flow channel and an exhaust channel communicated with the water flow channel, the valve body is used for being installed on the top of a water pipe so that the water flow channel can be communicated with the water pipe, the spiral shaft is rotatably installed in the water flow channel and connected with the impeller, the spiral shaft and the impeller are coaxially arranged, and the impeller is used for stretching into the water pipe. The impeller can drive the spiral shaft to rotate under the action of water flow in the water pipe so as to lead part of water and air in the water pipe into the water flow channel, and the exhaust part is installed in the exhaust channel and used for exhausting the air outwards through the exhaust channel. According to the exhaust valve, water and air in a water pipe can be rapidly introduced, the exhaust efficiency is improved, the exhaust effect is enhanced, it can be guaranteed that water in the valve body continuously flows, the valve body is prevented from being frozen and cracked by water freezing, and safety and reliability are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of water conveyance, and particularly to an exhaust valve and a water pipeline. Background Technique

[0002] At present, in order to reduce the air entrained in the water flow in the water pipe, an exhaust valve is generally installed on the water pipe. The current exhaust valve is usually installed at the high point of the pipeline. Using the principle that the air in the water continuously rises (the density of air is less than that of water), the air in the water accumulates at the high point of the pipeline and is discharged from the pipeline through the exhaust valve. However, in this way, when the horizontal pipeline is long, it takes a long time for the air in the water to move to the exhaust valve, resulting in low exhaust efficiency and poor exhaust effect; when there is no gas in the pipeline, the water in the exhaust valve is in a static state. At this time, if the external environmental temperature is low, the water in the exhaust valve will freeze and expand, thus cracking the exhaust valve, and the safety is poor.

[0003] In view of this, it is particularly important to design and manufacture an exhaust valve and a water pipeline with high exhaust efficiency, safety and reliability, especially in the transportation of flowing water. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an exhaust valve, which can quickly introduce water and air into the water pipe, improve the exhaust efficiency, enhance the exhaust effect, and can ensure the continuous flow of water in the valve body, avoid the water from freezing and cracking the valve body, and is safe and reliable.

[0005] Another purpose of the utility model is to provide a water pipeline, which can quickly introduce water and air into the water pipe, improve the exhaust efficiency, enhance the exhaust effect, and can ensure the continuous flow of water in the valve body, avoid the water from freezing and cracking the valve body, and is safe and reliable.

[0006] The utility model is realized by adopting the following technical solutions.

[0007] An exhaust valve includes a valve body, an impeller, a spiral shaft and an exhaust member. The valve body is provided with a water flow channel and an exhaust channel communicated with the water flow channel. The valve body is used for being installed on the top of the water pipe so that the water flow channel is communicated with the water pipe. The spiral shaft is rotatably installed in the water flow channel and is connected with the impeller. The spiral shaft and the impeller are coaxially arranged. The impeller is used for extending into the water pipe. The impeller can drive the spiral shaft to rotate under the action of the water flow in the water pipe so as to introduce part of the water and air in the water pipe into the water flow channel. The exhaust member is installed in the exhaust channel and is used for discharging the air outwards through the exhaust channel.

[0008] Optionally, the water flow channel includes an inlet cavity, an exhaust cavity and an outlet cavity which are sequentially communicated. The exhaust cavity is communicated with the exhaust channel. The spiral shaft is installed in the inlet cavity. Both the inlet cavity and the outlet cavity are used for being communicated with the water pipe.

[0009] Optionally, the valve body includes a housing and a partition. The partition is connected inside the housing to divide the housing into an inlet chamber and an outlet chamber. An exhaust chamber is provided above the partition. The housing is used for detachable connection with a water pipe.

[0010] Optionally, the valve body further includes a mounting bracket. The mounting bracket is connected to the partition and / or the housing, and is arranged between the inlet chamber and the exhaust chamber. The spiral shaft is suspended below the mounting bracket and can rotate relative to the mounting bracket.

[0011] Optionally, the valve body further includes a limiting bracket. The limiting bracket is connected to the partition and / or the housing, and is arranged at one end of the inlet chamber away from the exhaust chamber. The spiral shaft is rotationally matched with the limiting bracket.

[0012] Optionally, the housing is provided with a protection section. The protection section includes an inner liner and an outer shell arranged at intervals. The inner liner is arranged outside the water flow channel, and there is a buffer cavity between the inner liner and the outer shell.

[0013] Optionally, the thickness of the inner liner is less than the thickness of the outer shell.

[0014] Optionally, the exhaust component includes a sealing float ball. The exhaust channel is conically arranged, and the exhaust channel is provided with a large end and a small end opposite to each other. The sealing float ball is arranged between the large end and the small end. The diameter of the sealing float ball is greater than the inner diameter of the small end and less than the inner diameter of the large end. The large end is communicated with the water flow channel, and the small end is used for communicating with the outside.

[0015] Optionally, the exhaust component further includes an elastic member. An exhaust pipe extends outside the small end. The elastic member is arranged inside the exhaust pipe. One end of the elastic member is connected to the sealing float ball, and the other end is connected to the inner wall of the exhaust pipe.

[0016] Optionally, the impeller includes a wheel shaft and a plurality of fan blades. The plurality of fan blades are arranged in an annular array outside the circumferential surface of the wheel shaft and are all connected to the wheel shaft.

[0017] Optionally, the spiral shaft includes a shaft body and a strip-shaped blade. The strip-shaped blade is spirally wound outside the circumferential surface of the shaft body and is connected to the shaft body.

[0018] A water pipeline includes a water pipe and the above-mentioned exhaust valve. The exhaust valve includes a valve body, an impeller, a spiral shaft and an exhaust component. The valve body is provided with a water flow channel and an exhaust channel communicated with the water flow channel. The valve body is installed on the top of the water pipe so that the water flow channel is communicated with the water pipe. The spiral shaft is rotatably installed in the water flow channel and is connected to the impeller. The spiral shaft and the impeller are coaxially arranged. The impeller extends into the water pipe. The impeller can drive the spiral shaft to rotate under the action of the water flow in the water pipe to introduce part of the water and air in the water pipe into the water flow channel. The exhaust component is installed in the exhaust channel and is used for discharging the air outwards through the exhaust channel.

[0019] The exhaust valve and the water pipeline provided by the present utility model have the following beneficial effects:

[0020] The exhaust valve provided by the present utility model has a valve body provided with a water flow channel and an exhaust channel communicating with the water flow channel. The valve body is used to be installed on the top of a water pipe so that the water flow channel communicates with the water pipe. A spiral shaft is rotatably installed in the water flow channel and is connected to an impeller. The spiral shaft and the impeller are coaxially arranged. The impeller is used to extend into the water pipe. The impeller can drive the spiral shaft to rotate under the action of the water flow in the water pipe to introduce part of the water and air in the water pipe into the water flow channel. An exhaust member is installed in the exhaust channel and is used to discharge the air outwards through the exhaust channel. Compared with the prior art, since the exhaust valve provided by the present utility model adopts a spiral shaft connected to the impeller and an exhaust member installed in the exhaust channel, it can quickly introduce the water and air in the water pipe, improve the exhaust efficiency, enhance the exhaust effect, and can ensure the continuous flow of water in the valve body, avoid the valve body being cracked due to freezing of water, and is safe and reliable.

[0021] The water pipeline provided by the present utility model includes an exhaust valve, which can quickly introduce the water and air in the water pipe, improve the exhaust efficiency, enhance the exhaust effect, and can ensure the continuous flow of water in the valve body, avoid the valve body being cracked due to freezing of water, and is safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic structural diagram of the water pipeline provided by the embodiment of the present utility model;

[0024] Figure 2 It is a schematic structural diagram of the connection between the exhaust valve and the water pipe provided by the embodiment of the present utility model;

[0025] Figure 3 It is a schematic structural diagram of the exhaust valve provided by the embodiment of the present utility model;

[0026] Figure 4 It is a top view of the exhaust valve provided by the embodiment of the present utility model;

[0027] Figure 5 It is a schematic structural diagram of the spiral shaft in the exhaust valve provided by the embodiment of the present utility model;

[0028] Figure 6 It is a schematic structural diagram of the impeller in the exhaust valve provided by the embodiment of the present utility model.

[0029] Icons: 10 - water pipeline; 100 - exhaust valve; 110 - valve body; 111 - water flow channel; 1111 - water inlet chamber; 1112 - exhaust chamber; 1113 - water outlet chamber; 112 - exhaust passage; 1121 - large end; 1122 - small end; 1123 - exhaust pipe; 113 - housing; 1131 - protection section; 1132 - inner liner; 1133 - outer shell; 1134 - buffer cavity; 114 - partition; 115 - mounting bracket; 1151 - mounting hole; 116 - limiting bracket; 1161 - limiting hole; 120 - impeller; 121 - axle; 122 - fan blade; 130 - spiral shaft; 131 - shaft body; 132 - strip-shaped blade; 140 - exhaust component; 141 - sealing float ball; 142 - elastic component; 200 - water pipe. Detailed implementation mode

[0030] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model claimed, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0032] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0033] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "inner", "outer", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present utility model, it should also be noted that unless otherwise clearly defined and limited, the terms "arranged", "connected", "installed", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0035] The following will describe in detail some embodiments of the present utility model with reference to the drawings. Without conflict, the features in the following embodiments can be combined with each other.

[0036] Please refer to Figure 1 and Figure 2 ( Figure 2 In the figure, the hollow arrow indicates the flow direction of water), an embodiment of the present utility model provides a water pipeline 10 for realizing the transportation of flowing water. It can quickly introduce water and air into the water pipe 200, improve the exhaust efficiency, enhance the exhaust effect, and can ensure the continuous flow of water in the valve body 110, avoiding the valve body 110 from being frozen and cracked by water, which is safe and reliable.

[0037] The water pipeline 10 includes an exhaust valve 100 and a water pipe 200. The exhaust valve 100 is installed on the top of the water pipe 200. The water pipe 200 is used for the flow of water to realize the water transportation function, and the exhaust valve 100 is used to discharge the air in the water pipe 200 to ensure the stability of the water transportation in the water pipe 200.

[0038] It should be noted that in the water pipeline 10, the number of water pipes 200 is multiple, and the multiple water pipes 200 are connected in sequence to form a water flow path. Among them, some water pipes 200 are arranged vertically, and some water pipes 200 are arranged horizontally (not absolutely horizontal, and a certain inclination is allowed); while the number of exhaust valves 100 can be one or multiple, and the exhaust valve 100 is installed on the top of the horizontally arranged water pipe 200 to discharge the air in the water pipe 200.

[0039] Specifically, for the horizontally arranged water pipe 200, when water flows in the water pipe 200, the water pipe 200 can guide the water so that the water flows in the horizontal direction. During this process, affected by environmental factors, some air will inevitably enter the water pipe 200. These air exist in the water flow in the form of bubbles and move with the water flow. Since the density of air is less than the density of water, the bubbles in the water flow will float upward. Therefore, the exhaust valve 100 is installed on the top of the water pipe 200 to discharge the air in the water pipe 200 to ensure the stability of the water transportation in the water pipe 200.

[0040] The exhaust valve 100 includes a valve body 110, an impeller 120, a spiral shaft 130 and an exhaust member 140. The valve body 110 is provided with a water flow channel 111 and an exhaust channel 112 communicating with the water flow channel 111. The valve body 110 is used to be installed on the top of the water pipe 200 so that the water flow channel 111 communicates with the water pipe 200. In this way, part of the water in the water pipe 200 can carry air and enter the exhaust channel 112 through the water flow channel 111. The spiral shaft 130 is rotatably installed in the water flow channel 111 and is connected to the impeller 120. The spiral shaft 130 and the impeller 120 are coaxially arranged. The impeller 120 is used to extend into the water pipe 200. The impeller 120 can drive the spiral shaft 130 to rotate under the action of the water flow in the water pipe 200 to introduce part of the water and air in the water pipe 200 into the water flow channel 111. During this process, since the rotation of the spiral shaft 130 will generate negative pressure, it can accelerate the speed of part of the water and air flowing into the water flow channel 111. The exhaust member 140 is installed in the exhaust channel 112. After part of the water and air enter the exhaust channel 112 through the water flow channel 111, the exhaust member 140 is used to discharge the air outwards through the exhaust channel 112 to achieve the exhaust function.

[0041] In this way, on the one hand, the spiral shaft 130 rotates driven by the impeller 120 to accelerate the speed of part of the water and air in the water pipe 200 entering the water flow channel 111, so as to quickly introduce the water and air in the water pipe 200, improve the exhaust efficiency and enhance the exhaust effect; on the other hand, even if there is no air in the water pipe 200 and no exhaust is needed, the spiral shaft 130 will still rotate driven by the impeller 120, thereby driving part of the water in the water pipe 200 into the water flow channel 111 to ensure the continuous flow of water in the valve body 110. At this time, even if the external environmental temperature is relatively low, the dynamic water flow can well prevent freezing, thus avoiding the situation that the valve body 110 is frozen and cracked due to the expansion of frozen water, which is safe and reliable.

[0042] Please refer to Figures 3 to 5, the water flow channel 111 includes a water inlet chamber 1111, an exhaust chamber 1112, and a water outlet chamber 1113 that are connected in sequence. Among them, the exhaust chamber 1112 is connected to the exhaust passage 112. The spiral shaft 130 is installed in the water inlet chamber 1111, and both the water inlet chamber 1111 and the water outlet chamber 1113 are used to communicate with the water pipe 200. Specifically, the exhaust passage 112 is provided above the exhaust chamber 1112, and both the water inlet chamber 1111 and the water outlet chamber 1113 are provided below the exhaust chamber 1112. The spiral shaft 130 can rotate driven by the impeller 120, thereby driving the water and air in the water pipe 200 to enter the exhaust chamber 1112 through the water inlet chamber 1111, and then enter the exhaust passage 112. The exhaust member 140 installed in the exhaust passage 112 can block the water and discharge the air outward to achieve the exhaust function and avoid the situation of water flowing out from the exhaust passage 112. After the exhaust is completed, the water flow flows back to the water pipe 200 through the water outlet chamber 1113 under the action of water pressure, mixes with the water originally flowing in the water pipe 200, and continues to flow forward to achieve the water conveyance function.

[0043] It should be noted that after the exhaust valve 100 is installed, both the water inlet chamber 1111 and the water outlet chamber 1113 of the water flow channel 111 are connected to the water pipe 200, and the impeller 120 extends into the water pipe 200. Since the water in the water pipe 200 is constantly flowing, it will drive the impeller 120 to rotate continuously (similar to the principle of a waterwheel). The impeller 120 synchronously drives the spiral shaft 130 to rotate. The rotation of the spiral shaft 130 generates negative pressure to suck part of the water and air in the water pipe 200 into the water inlet chamber 1111. Thereafter, the water in the water inlet chamber 1111 flows back to the water pipe 200 through the exhaust chamber 1112 and the water outlet chamber 1113 in sequence to achieve the water reflux. The air in the water inlet chamber 1111 floats upward to the exhaust passage 112 after entering the exhaust chamber 1112 and is discharged from the exhaust passage 112 through the exhaust member 140 to achieve the exhaust function.

[0044] The valve body 110 includes a housing 113, a partition 114, a mounting bracket 115, and a limiting bracket 116. The partition 114 is connected inside the housing 113 to divide the housing 113 into the water inlet chamber 1111 and the water outlet chamber 1113, that is, the water inlet chamber 1111 and the water outlet chamber 1113 are relatively arranged on both sides of the partition 114. The exhaust chamber 1112 is provided above the partition 114. The water and air in the water inlet chamber 1111 can flow upward to the exhaust chamber 1112, and the water in the exhaust chamber 1112 can flow downward to the water outlet chamber 1113. The housing 113 is used for detachable connection with the water pipe 200 to achieve the installation of the exhaust valve 100.

[0045] Further, the mounting bracket 115 is connected to the partition 114 and / or the housing 113, and is disposed between the water inlet chamber 1111 and the exhaust chamber 1112. The spiral shaft 130 is suspended below the mounting bracket 115 and can rotate relative to the mounting bracket 115. The mounting bracket 115 can limit the position and bear the weight of the spiral shaft 130 to ensure the stability of the rotation of the spiral shaft 130. In this embodiment, the mounting bracket 115 is connected between the partition 114 and the housing 113 to ensure the structural strength of the mounting bracket 115, but it is not limited thereto. In other embodiments, the mounting bracket 115 can be only connected to the partition 114 or only connected to the housing 113, and the connection manner of the mounting bracket 115 is not specifically limited.

[0046] In this embodiment, the mounting bracket 115 is strip-shaped. One end of the mounting bracket 115 is connected to the partition 114, and the other end is connected to the housing 113. The partition 114 and the housing 113 act together to fix the position of the mounting bracket 115, thereby realizing reliable position limitation and weight bearing of the spiral shaft 130. Specifically, a mounting hole 1151 is formed in the middle of the mounting bracket 115, and the spiral shaft 130 is rotatably mounted in the mounting hole 1151. The spiral shaft 130 can rotate relative to the mounting hole 1151, and the mounting bracket 115 can limit the position of the spiral shaft 130 through the mounting hole 1151 to ensure the reliable rotation of the spiral shaft 130. In addition, the strip-shaped area of the mounting bracket 115 is small, which can minimize its blocking effect on the water flow from the water inlet chamber 1111 to the exhaust chamber 1112, thereby reducing the influence on the water flow velocity and ensuring the stability of the water flow.

[0047] Correspondingly, the limiting bracket 116 is connected to the partition 114 and / or the housing 113, and is disposed at one end of the water inlet chamber 1111 away from the exhaust chamber 1112. The spiral shaft 130 is rotationally matched with the limiting bracket 116. The spiral shaft 130 can rotate relative to the limiting bracket 116. The limiting bracket 116 can limit the end of the spiral shaft 130 away from the mounting bracket 115 to further improve the stability of the rotation of the spiral shaft 130 and prevent the spiral shaft 130 from deflecting or tilting. In this embodiment, the limiting bracket 116 is connected between the partition 114 and the housing 113 to ensure the structural strength of the limiting bracket 116, but it is not limited thereto. In other embodiments, the limiting bracket 116 can be only connected to the partition 114 or only connected to the housing 113, and the connection manner of the limiting bracket 116 is not specifically limited.

[0048] In this embodiment, the limiting bracket 116 is strip-shaped. One end of the limiting bracket 116 is connected to the partition plate 114, and the other end is connected to the housing 113. The partition plate 114 and the housing 113 act together to fix the position of the limiting bracket 116, thereby realizing reliable limitation of the spiral shaft 130 and further improving the rotational stability of the spiral shaft 130. Specifically, a limiting hole 1161 is formed in the middle of the limiting bracket 116. The spiral shaft 130 is rotatably installed in the limiting hole 1161. The spiral shaft 130 can rotate relative to the limiting hole 1161, and the limiting bracket 116 can limit the spiral shaft 130 through the limiting hole 1161 to ensure reliable rotation of the spiral shaft 130. In addition, the area of the strip shape of the limiting bracket 116 is small, which can minimize its blocking effect on the water flow entering the water inlet cavity 1111 from the water pipe 200, thereby reducing the influence on the water flow velocity and ensuring the stability of water flow.

[0049] In this embodiment, the valve body 110 is installed on the top of the water pipe 200 and is perpendicular to the water pipe 200. The partition plate 114 is also perpendicular to the water pipe 200, that is, the water inlet direction of the water inlet cavity 1111 and the water outlet direction of the water outlet cavity 1113 are both vertical directions. The water and air entering the water inlet cavity 1111 from the water pipe 200 flow upward in the vertical direction, and the water flowing back from the water outlet cavity 1113 to the water pipe 200 flows downward in the vertical direction.

[0050] It should be noted that the housing 113 is provided with a protection section 1131, and the protection section 1131 is used to enhance the anti-freezing and cracking effect and improve safety. Specifically, the protection section 1131 includes an inner liner 1132 and an outer shell 1133 arranged at intervals. The inner liner 1132 is arranged outside the water flow channel 111. There is a buffer cavity 1134 between the inner liner 1132 and the outer shell 1133. The buffer cavity 1134 is used to make way for ice and fragments of the inner liner 1132 when the water in the water flow channel 111 freezes and expands and cracks the inner liner 1132, so as to prevent the outer shell 1133 from being damaged, thereby avoiding the occurrence of water leakage, which is safe and reliable.

[0051] Specifically, when the external environmental temperature is too low, the dynamic water flow in the water flow channel 111 is frozen and iced. Since the density of ice is less than that of water, the volume of the same mass of water will increase after freezing, that is, the water will freeze and expand. During the freezing process, the ice will exert pressure on the inner liner 1132, thereby pressing the inner liner 1132 towards the outer shell 1133 and breaking it. At this time, the inner liner 1132 is frozen and cracked, and the ice and fragments of the inner liner 1132 both extend into the buffer cavity 1134. In this embodiment, the thickness of the inner liner 1132 is less than that of the outer shell 1133, the strength of the inner liner 1132 is less than that of the outer shell 1133, and the volume of the buffer cavity 1134 is greater than the volume of the water freezing and expanding to ensure that the outer shell 1133 will not be damaged during the freezing process, with strong safety.

[0052] In this embodiment, the protection section 1131 is arranged in a ring shape and surrounds the exhaust cavity 1112, a part of the water inlet cavity 1111, and a part of the water outlet cavity 1113 at the same time to improve the protection effect. However, it is not limited to this. In other embodiments, the protection section 1131 can be arranged in an arc shape or a semi-circular shape; the protection section 1131 can surround only one of the exhaust cavity 1112, the water inlet cavity 1111, and the water outlet cavity 1113, or can surround two of the exhaust cavity 1112, the water inlet cavity 1111, and the water outlet cavity 1113 at the same time.

[0053] The exhaust member 140 includes a sealing float ball 141 and an elastic member 142. The exhaust passage 112 is arranged in a conical shape. The exhaust passage 112 is provided with a large end 1121 and a small end 1122 oppositely. The large end 1121 is located below the small end 1122. The sealing float ball 141 is arranged between the large end 1121 and the small end 1122. The diameter of the sealing float ball 141 is larger than the inner diameter of the small end 1122 and smaller than the inner diameter of the large end 1121. The large end 1121 is communicated with the water flow passage 111. Water and air in the water flow passage 111 can enter the exhaust passage 112 through the large end 1121. The small end 1122 is used for communicating with the outside. The sealing float ball 141 is used for abutting against the exhaust passage 112 to achieve the sealing function and prevent water leakage. The sealing float ball 141 is also used for separating from the exhaust passage 112 to achieve the exhaust function.

[0054] Furthermore, an exhaust pipe 1123 extends outside the small end 1122. The elastic member 142 is arranged in the exhaust pipe 1123. One end of the elastic member 142 is connected to the sealing float ball 141, and the other end is connected to the inner wall of the exhaust pipe 1123. The elastic member 142 is always in a compressed state. The elastic member 142 is used for limiting and pressing the sealing float ball 141 to achieve reliable switching between the sealing function and the exhaust function.

[0055] It should be noted that when there is no air entrained in the water entering the exhaust passage 112 through the water flow passage 111, the sealed floating ball 141 overcomes the elastic force of the elastic member 142 under the buoyancy of the water and always maintains a state of abutting against the exhaust passage 112 to achieve the sealing of the exhaust passage 112 and prevent water from flowing outwards from the exhaust passage 112; when the water entering the exhaust passage 112 through the water flow passage 111 entrains air, the buoyancy of the water on the sealed floating ball 141 decreases and is not sufficient to overcome the elastic force of the elastic member 142. At this time, the sealed floating ball 141 is slightly separated from the exhaust passage 112 under the elastic force of the elastic member 142, and the air overflows from the gap between the sealed floating ball 141 and the exhaust passage 112 under the water pressure and is discharged outwards through the exhaust pipe 1123 to achieve the exhaust function; when the exhaust is completed, the buoyancy of the water on the sealed floating ball 141 is restored to overcome the elastic force of the elastic member 142 and make the sealed floating ball 141 abut against the exhaust passage 112 again to achieve the sealing of the exhaust passage 112 once again.

[0056] In this embodiment, the exhaust member 140 includes a sealed floating ball 141 and an elastic member 142 connected to each other. The elastic member 142 is a spring. The sealed floating ball 141 and the elastic member 142 are used together to realize the switching between the sealing function and the exhaust function of the exhaust valve 100, but it is not limited thereto. In other embodiments, the exhaust member 140 can be a breathable gasket or a breathable membrane, and the type of the exhaust member 140 is not specifically limited.

[0057] Please refer to Figure 6 , the impeller 120 includes a wheel shaft 121 and a plurality of fan blades 122. The plurality of fan blades 122 are arranged in a circular array on the outer circumference of the wheel shaft 121 and are all connected to the wheel shaft 121. The wheel shaft 121 is coaxially arranged with the spiral shaft 130 and is connected to each other. Specifically, the fan blade 122 is in the shape of a rectangular plate, and the axis of the wheel shaft 121 is located in the plane where the fan blade 122 is located. The fan blade 122 can move under the action of the water flow in the water pipe 200, thereby driving the wheel shaft 121 to rotate, and further driving the spiral shaft 130 to rotate.

[0058] In this embodiment, the number of the fan blades 122 is six, and the six fan blades 122 are arranged in a circular array on the outer circumference of the wheel shaft 121, but it is not limited thereto. In other embodiments, the number of the fan blades 122 can be four or eight, and the number of the fan blades 122 is not specifically limited.

[0059] Please continue to refer to Figure 5, the spiral shaft 130 includes a shaft body 131 and a strip-shaped blade 132. The strip-shaped blade 132 is spirally wound around the outer circumferential surface of the shaft body 131 and is connected to the shaft body 131. The shaft body 131 is coaxially arranged with the wheel shaft 121 and is connected to each other. Specifically, during the process of the wheel shaft 121 driving the shaft body 131 to rotate, the strip-shaped blade 132 rotates synchronously to drive the water and air in the water pipe 200 to spiral upward in the water inlet cavity 1111, accelerating the flow rate of the water and air, realizing the rapid introduction of the water and air, improving the exhaust efficiency, and enhancing the exhaust effect.

[0060] For the exhaust valve 100 provided by the embodiment of the present invention, the valve body 110 is provided with a water flow channel 111 and an exhaust channel 112 communicated with the water flow channel 111. The valve body 110 is used for being installed on the top of the water pipe 200 so that the water flow channel 111 is communicated with the water pipe 200. The spiral shaft 130 is rotatably installed in the water flow channel 111 and is connected to the impeller 120. The spiral shaft 130 is coaxially arranged with the impeller 120. The impeller 120 is used for extending into the water pipe 200. The impeller 120 can drive the spiral shaft 130 to rotate under the action of the water flow in the water pipe 200 to introduce part of the water and air in the water pipe 200 into the water flow channel 111. The exhaust member 140 is installed in the exhaust channel 112 and is used for discharging the air outwards through the exhaust channel 112. Compared with the prior art, since the exhaust valve 100 provided by the present invention adopts the spiral shaft 130 connected to the impeller 120 and the exhaust member 140 installed in the exhaust channel 112, it can quickly introduce the water and air in the water pipe 200, improve the exhaust efficiency, enhance the exhaust effect, and can ensure the continuous flow of the water in the valve body 110, avoiding the valve body 110 from being frozen and cracked by the water, which is safe and reliable. It makes the exhaust effect of the water transmission pipeline 10 good and the water transmission process stable.

[0061] The above is only the preferred embodiment of the present invention and is not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An exhaust valve, characterized in that, It includes a valve body, an impeller, a spiral shaft and an exhaust component. The valve body is provided with a water flow channel and an exhaust channel communicating with the water flow channel. The valve body is used to be installed on the top of a water pipe so that the water flow channel communicates with the water pipe. The spiral shaft is rotatably installed in the water flow channel and is connected to the impeller. The spiral shaft and the impeller are coaxially arranged. The impeller is used to extend into the water pipe. The impeller can drive the spiral shaft to rotate under the action of the water flow in the water pipe to introduce part of the water and air in the water pipe into the water flow channel. The exhaust component is installed in the exhaust channel and is used to discharge the air outwards through the exhaust channel.

2. The exhaust valve according to claim 1, characterized in that, The water flow channel includes a water inlet cavity, an exhaust cavity and a water outlet cavity that are sequentially communicated. The exhaust cavity communicates with the exhaust channel. The spiral shaft is installed in the water inlet cavity. Both the water inlet cavity and the water outlet cavity are used to communicate with the water pipe.

3. The exhaust valve according to claim 2, characterized in that, The valve body includes a housing and a partition. The partition is connected inside the housing to divide the housing into the water inlet cavity and the water outlet cavity. The exhaust cavity is arranged above the partition. The housing is used to be detachably connected to the water pipe.

4. The exhaust valve according to claim 3, characterized in that, The valve body further includes a mounting bracket. The mounting bracket is connected to the partition and / or the housing and is arranged between the water inlet cavity and the exhaust cavity. The spiral shaft is suspended below the mounting bracket and can rotate relative to the mounting bracket.

5. The exhaust valve according to claim 4, characterized in that, The valve body further includes a limiting bracket. The limiting bracket is connected to the partition and / or the housing and is arranged at one end of the water inlet cavity away from the exhaust cavity. The spiral shaft is rotationally matched with the limiting bracket.

6. The exhaust valve according to claim 3, characterized in that, The housing is provided with a protection section. The protection section includes an inner liner and an outer shell that are arranged at intervals. The inner liner is arranged outside the water flow channel. There is a buffer cavity between the inner liner and the outer shell.

7. The exhaust valve according to claim 6, wherein The thickness of the inner liner is less than the thickness of the outer shell.

8. The exhaust valve according to claim 1, characterized in that, The exhaust component includes a sealed floating ball. The exhaust channel is conically arranged. The exhaust channel has a large end and a small end arranged oppositely. The sealed floating ball is arranged between the large end and the small end. The diameter of the sealed floating ball is greater than the inner diameter of the small end and less than the inner diameter of the large end. The large end communicates with the water flow channel. The small end is used to communicate with the outside.

9. The exhaust valve according to claim 8, characterized in that, The exhaust component further includes an elastic member. An exhaust pipe extends outside the small end. The elastic member is arranged in the exhaust pipe. One end of the elastic member is connected to the sealed floating ball, and the other end is connected to the inner wall of the exhaust pipe.

10. The exhaust valve according to claim 1, characterized in that, The impeller includes a wheel shaft and a plurality of fan blades. The plurality of fan blades are arranged in an annular array on the outer circumference of the wheel shaft and are all connected to the wheel shaft.

11. The exhaust valve according to claim 1, characterized in that, The spiral shaft includes a shaft body and a strip-shaped blade. The strip-shaped blade is spirally wound around the outer circumference of the shaft body and is connected to the shaft body.

12. A water pipeline, characterized in that, It includes a water pipe and the exhaust valve according to any one of claims 1 to 11. The exhaust valve is installed on the top of the water pipe.

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