Water discharging device

Abstract

The utility model discloses a water discharging device which comprises a water tank body, a floating ball and a water control mechanism, the floating ball is arranged in the water tank body, the water control mechanism is arranged at the top end of the water tank body, and the floating ball is connected with the water control mechanism. The water control mechanism comprises a valve body, a bottom cover, a top cover, a valve element, an ejector pin and a sealing gasket. The top cover and the bottom cover are fixedly connected to the upper end and the lower end of the valve body respectively to form an ejector pin cavity and a valve element cavity, and the ejector pin cavity and the valve element cavity are separated through an annular protrusion integrally formed on the inner wall of the valve body. The ejector pin is connected into the ejector pin cavity in a sliding mode, and the bottom end of the ejector pin penetrates through the annular protrusion and then extends into the valve element cavity. The valve element is connected into the valve element cavity in a sliding mode and controls the blocking state of a negative pressure extraction opening formed in one side of the valve element cavity, and the bottom end of the valve element extends out of the valve element cavity and then is connected with the floating ball. The top end of the valve element is fixedly connected with a first magnet, and the top end of the annular protrusion is fixedly connected with an annular magnet.

Description

Technical Field

[0001] The utility model relates to the field of gas extraction, in particular to a water discharger. Background Art

[0002] At present, in the process of coal mine production, gas extraction is required. A large amount of water often accumulates in the gas extraction pipe. Therefore, it is necessary to install a water drainer on the gas extraction pipe to remove the water in the gas extraction pipe. Patent No. CN201621121645.1 discloses a negative pressure automatic water drainer for a coal mine gas extraction pipe, which controls the ventilation valve by the height position of the float in the water drain box, and can realize the conversion of the water storage state and the water discharge state of the water drainer. However, it is found during use that since the height of the float is controlled by the slow change of the water level, when the height of the float reaches the critical point for converting the ventilation valve between the water storage state and the water discharge state, the water flow height in the water drainer will remain near this scale, that is, when the water level is higher than this height, water will be drained immediately, and when the water level is lower than this height, water will be stored immediately, causing the ventilation valve to be in a frequent conversion state; this condition seriously affects the use effect of the water drainer, and the frequent conversion of the ventilation valve not only affects the gas extraction efficiency, but also shortens the service life of the water drainer, and it is necessary to improve it. Summary of the invention

[0003] The utility model aims to solve the above problems and provide a water discharger with simple structure and convenient use.

[0004] In order to achieve the above purpose, the technical solution of the utility model is:

[0005] A water discharger comprises a water tank body, a float, and a water control mechanism, wherein the float is arranged inside the water tank body, the water control mechanism is arranged at the top of the water tank body, the float is connected to the water control mechanism, and the water control state of the water control mechanism is controlled by the height of the float; the water control mechanism comprises a valve body, a bottom cover, a top cover, a valve core, an ejector pin, and a sealing gasket; the top cover and the bottom cover are respectively fixedly connected to the upper and lower ends of the valve body to form an ejector pin cavity at the upper end and a valve core cavity at the lower end, the ejector pin cavity and the valve core cavity are separated by an annular protrusion integrally formed on the inner wall of the valve body; the ejector pin is slidably connected to the valve body. In the ejector cavity, the bottom end of the ejector passes through the annular protrusion and extends into the valve core cavity to control the connection state between the ejector cavity and the valve core cavity; the valve core is slidably connected in the valve core cavity and controls the blocking state of the negative pressure exhaust port arranged on one side of the valve core cavity, and the bottom end of the valve core extends out of the valve core cavity and is connected to the float; the top end of the valve core is fixedly connected to the first magnet, and the top end of the annular protrusion is fixedly connected to the annular magnet; when the first magnet and the annular magnet are attracted, the valve core pushes the ejector to move upward, the valve core blocks the negative pressure exhaust port, and a connection state is formed between the ejector cavity and the valve core cavity.

[0006] Furthermore, the ejector cavity is provided with an atmosphere communication port connected to the outside atmosphere, and the atmosphere communication port is provided on the side wall of the top cover.

[0007] Furthermore, a sealing gasket is embedded between the valve body and the top cover, and the ejector pin is a variable diameter structure with a large outer diameter at the upper part and a small outer diameter at the lower part. The bottom end of the ejector pin passes through the sealing gasket and then passes through the annular magnet and the annular protrusion in sequence; when the upper bottom end face of the ejector pin contacts the sealing gasket, the atmosphere communication port in the ejector pin cavity and the valve core cavity are in a blocked state; when the ejector pin moves upward and does not contact the sealing gasket, the atmosphere communication port in the ejector pin cavity and the valve core cavity are in a connected state.

[0008] Furthermore, a ventilation groove is provided on the inner wall of the valve body, the top end of the ventilation groove is connected with the valve core cavity, and the bottom end of the ventilation groove penetrates the bottom end wall of the valve body and is connected with the inside of the water tank body.

[0009] Furthermore, a central through hole is provided at the center position of the top end of the water tank body, and the bottom end of the valve body passes through the central through hole and is threadedly connected to the bottom cover located in the water tank body.

[0010] Furthermore, the bottom end of the valve core passes through the bottom cover and extends into the water tank body and is connected to the top end of a guide rod longitudinally arranged in the water tank body, and the bottom end of the guide rod is fixedly connected to the float.

[0011] Furthermore, an air inlet is provided on one side of the upper end of the water tank body, and a first baffle cover is provided on the inner side of the air inlet, which is opened under a negative pressure state and blocks the air inlet by gravity under normal air pressure. The first baffle cover is arranged in an inclined shape, and the top of the first baffle cover is connected to the top pin shaft of the inner side of the air inlet; a drain outlet is provided on one side of the bottom end of the water tank body, and a second baffle cover is provided on the outer side of the drain outlet, which is opened by water flow pressure under a normal state and blocks the drain outlet by its own gravity under a negative pressure state. The second baffle cover is arranged in an inclined shape, and the top of the second baffle cover is connected to the top pin shaft of the outer side of the drain outlet.

[0012] Furthermore, the float is a water-filled vacuum float and the weight of the float can be adjusted by injecting water into the float.

[0013] Furthermore, a transparent observation plate for observing the water level inside the water tank body is provided on the side wall of the water tank body.

[0014] Furthermore, the top cover, valve body and bottom cover are all made of non-magnetic material.

[0015] Compared with the prior art, the utility model has the following advantages and positive effects:

[0016] When the utility model is in the negative pressure pumping stage, the float ball is located at the bottom end of the water tank body, the top rod contacts the sealing gasket under the action of gravity and blocks the communication state between the atmosphere communication port and the valve core cavity, the valve core slides to the bottom end of the valve core cavity under the action of gravity of the float ball, the valve core does not block the negative pressure pumping port, and the negative pressure pumping port is connected with the inside of the water tank body through the ventilation groove on the inner wall of the valve body; at this time, the inside of the water tank body is in a negative pressure state, gas enters into the water tank body from the air inlet under the action of negative pressure and is pumped out from the negative pressure pumping port, and the water in the gas pipe remains in the water tank body; the water level in the water tank body gradually rises and drives the float ball to rise When the temperature rises to the critical switching position, the first magnet at the top of the valve core is attracted by the annular magnet at the top of the annular protrusion, and the valve core pushes the ejector pin to move upward to the topmost position. At this time, the drain device enters the water discharge stage, and the side wall of the valve core blocks the negative pressure air extraction port. The atmospheric connection port in the ejector pin cavity is connected with the valve core cavity, the ventilation groove, and the inside of the water tank body. The inside of the water tank body is in a normal air pressure state, and the water in the water tank body flows out from the drain port until the downward force of the float ball is greater than the adsorption force of the first magnet and the annular magnet again, and the valve core slides to the bottom of the valve core cavity again, and the drain device enters the negative pressure air extraction stage again.

[0017] The utility model adopts the coordinated control of the first magnet and the annular magnet, so that when the float drives the valve core to reach the height position of the critical point of the gas path conversion, the valve core is directly caused to rise quickly to the height of the water discharge state through the magnetic effect; when the water flow in the water tank body is reduced to a certain height, the valve core falls again to the height of the air pumping and water storage state under the gravity of the float; it can make the entire water control mechanism have clear air pumping and water storage states and water discharge states, and will not make the valve core be at the critical point height for a long time, thus avoiding the situation where the water control mechanism is frequently switched between the two states, which not only ensures that the extraction efficiency of the gas extraction pipeline is not affected, but also prolongs the service life of the water discharger, thereby effectively improving the use effect of the water discharger. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

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

[0020] Figure 2 It is a cross-sectional structural diagram of the air pumping and water storage state of the water control mechanism;

[0021] Figure 3It is a cross-sectional structural diagram of the water control mechanism in the water release state;

[0022] Figure 4 It is a cross-sectional view of the connection structure of the top cover, valve body and bottom cover. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work, any modifications, equivalent replacements, improvements, etc., should be included in the protection scope of the utility model.

[0024] like Figures 1 to 4 As shown, this embodiment discloses a water discharger, including a water tank body 1, a float 3, and a water control mechanism 2. A transparent observation plate for observing the water level inside the water tank body 1 is arranged on the side wall of the water tank body 1; the float 3 is arranged inside the water tank body 1, and the water control mechanism 2 is arranged at the top of the water tank body 1. The float 3 is connected to the water control mechanism 2 and the water control state of the water control mechanism 2 is controlled by the height of the float 3;

[0025] The float 3 is a water-injectable vacuum float and the weight of the float 3 can be adjusted by injecting water into the float 3. The use of a water-injectable vacuum float facilitates the adjustment of the float's buoyancy and gravity by injecting water into the vacuum float, so that the drain can adapt to various underground environments and achieve the effect of adjusting the water level in the drain.

[0026] The water control mechanism 2 comprises a valve body 21, a bottom cover 23, a top cover 22, a valve core 24, an ejector pin 25 and a sealing gasket 28; a central through hole is provided at the center of the top of the water tank body 1, the bottom end of the valve body 24 passes through the central through hole and is threadedly connected to the bottom cover 23 located in the water tank body 1, and the top cover 22 is fixedly connected to the top of the valve body 21; the top cover 22, the valve body 21 and the bottom cover 23 are connected to form an ejector pin cavity 222 located at the upper end and a valve core cavity 214 located at the lower end, and the ejector pin cavity 222 and the valve core cavity 214 are separated by an annular protrusion 211 integrally formed on the inner wall of the valve body 21;

[0027] The ejector cavity 222 is provided with an atmospheric communication port 221 connected to the outside atmosphere, and the atmospheric communication port 221 is provided on the side wall of the top cover 22; the ejector 25 is slidably connected in the ejector cavity 222 and can move longitudinally in the ejector cavity 222, and the bottom end of the ejector 25 passes through the annular protrusion 211 and extends into the valve core cavity 214 to control the communication state between the ejector cavity 222 and the valve core cavity 214;

[0028] A sealing gasket 28 is embedded between the valve body 21 and the top cover 22. The ejector pin 25 is a variable diameter structure with a large outer diameter at the upper part and a small outer diameter at the lower part. The bottom end of the ejector pin 25 passes through the sealing gasket 28 and then passes through the annular magnet 27 and the annular protrusion 211 in sequence; when the upper bottom end surface of the ejector pin 25 contacts the sealing gasket 28, the atmosphere communication port 221 in the ejector pin cavity 222 and the valve core cavity 214 are in a blocked state; when the ejector pin 25 moves upward and does not contact the sealing gasket 28, the atmosphere communication port 221 in the ejector pin cavity 222 and the valve core cavity 214 are in a connected state.

[0029] The inner wall of the valve body 21 is provided with a ventilation groove 213, the top of which is connected to the valve core cavity 214, the bottom of which passes through the bottom end wall of the valve body 21 and is connected to a connecting groove 231 provided on the bottom cover 23, the bottom cover 23 is located in the water tank body 1 and the connecting groove 231 is connected to the inside of the water tank body 1; the valve core 24 is slidably connected in the valve core cavity 214 and controls the blocking state of the negative pressure suction port 212 provided on one side of the valve core cavity 214 through longitudinal movement, and the bottom end of the valve core 24 passes through the bottom cover 23 and extends into the inside of the water tank body 1 It is connected to the top of the guide rod 4 longitudinally arranged in the water tank body 1 through a pin, and the bottom of the guide rod 4 is connected to the float 3; the top of the valve core 24 is fixedly connected to the first magnet 26, and the top of the annular protrusion 211 is fixedly connected to the annular magnet 27; when the first magnet 26 and the annular magnet 27 are attracted, the valve core 24 pushes the ejector pin 25 to move upward, and the valve core 24 blocks the negative pressure exhaust port 212, and the atmosphere connecting port 221 in the ejector pin cavity 222 is connected with the valve core cavity 214, the ventilation groove 213, the connecting groove 231, and the inside of the water tank body 1.

[0030] The ventilation groove mainly serves as an air flow channel to connect the valve core cavity with the interior of the water tank body. The bottom end of the ventilation groove can be set at a position where there is no obstruction from the bottom cover, or a connecting groove corresponding to the ventilation groove can be set on the bottom cover to connect the ventilation groove with the interior of the water tank body. In terms of design, as long as the connecting structure between the valve core cavity and the water tank body can be realized, it can be used in the present technical solution and the technical effect in the present technical solution can be achieved.

[0031] In order to prevent the magnetic force of the magnet from affecting other components, the top cover, valve body, bottom cover and ejector pin are all made of non-magnetic materials and will not be affected by the first magnet and the annular magnet.

[0032] An air inlet 101 connected to the gas extraction pipeline is arranged on one side of the upper end of the water tank body 1, and a first baffle 5 is arranged on the inner side of the air inlet 101, which is opened under negative pressure and blocked by gravity under normal air pressure. The first baffle 5 is arranged in an inclined shape, and the top of the first baffle 5 is connected to the top pin shaft of the inner side of the air inlet 101; a drain outlet 102 is arranged on one side of the bottom end of the water tank body 1, and a second baffle 6 is arranged on the outer side of the drain outlet 102, which is opened by water flow pressure under normal conditions and blocked by its own gravity under negative pressure conditions. The second baffle 6 is arranged in an inclined shape, and the top of the second baffle 6 is connected to the top pin shaft of the outer side of the drain outlet 102.

[0033] The connection structure between the air inlet and the first baffle cover, and the connection structure between the drain outlet and the second baffle cover make the air inlet open under negative pressure, and the drain outlet closed under negative pressure; at the same time, the air inlet is closed under normal air pressure, and the drain outlet is open under normal air pressure; thereby forming a one-way valve structure under different air pressure conditions, which not only realizes the water storage and water discharge operations of the water discharger, but also avoids the escape of gas in the gas extraction pipeline through the drain outlet, further improving the use effect of the utility model.

[0034] The conversion mechanical characteristics of the water discharger in the utility model are as follows: in the water accumulation (intake) stage of the water discharger, the box body is in a negative pressure state. At this time, water enters the box body from the air inlet, and the force analysis on the valve core is as follows: the upward force includes the buoyancy of the vacuum float + the attraction of the annular magnet and the first magnet; the downward resistance includes the gravity of the vacuum float, the valve core, the guide rod, and the ejector pin + the atmospheric pressure (the suction force at the ejector pin) + the friction resistance between the valve core and the valve body when the valve core moves upward; the conversion critical point is that the upward force is greater than or equal to the downward force, at which time the valve core moves upward instantly and is firmly attracted by the annular magnet, and at the same time the valve core pushes open its upper The ejector pin seals the negative pressure extraction port on the side of the valve core; at this time, the atmosphere connection port is connected to the inside of the box, and the negative pressure state in the box is rapidly converted to a "normal pressure" state consistent with the external atmospheric pressure. The retaining cover of the drain outlet is flushed open by the water, and the drain device starts to drain water. The drain device enters the drain stage. At this time, the force analysis of the valve core is performed again: the downward force includes the gravity of the vacuum float + valve core + guide rod, and the upward force includes the buoyancy of the vacuum float + the attraction of the annular magnet and cylindrical magnet + the friction resistance of the valve core with the valve body when it moves downward. The critical point of conversion is that the downward force is greater than or equal to the upward force.

[0035] When the water discharger of the utility model is in use, water in the gas extraction pipeline enters the water tank body of the water discharger through the air inlet, the negative pressure extraction port is connected to the gas extraction equipment to balance the negative pressure inside the water tank and the gas extraction pipeline, the water pushes open the baffle cover of the air inlet under the action of gravity and enters the water tank, the water level in the water tank rises, the buoyancy of the water lifts the vacuum float, the rising vacuum float pushes the guide rod to move upward, the guide rod drives the valve core to rise, and when it is about to reach the critical point, the first magnet at the top of the valve core reacts magnetically with the annular magnet, the valve core rises instantly to push up the ejector pin, the ejector pin is separated from the rubber sealing pad, the valve core blocks the negative pressure extraction port, and the ejector pin is lifted up, causing the inside of the water tank to inhale external air through the ventilation groove on the inner wall of the valve body and the atmosphere connecting port to balance the air pressure inside the water tank with that outside (such as Figure 3 As shown in the figure), the water in the water tank pushes open the cover of the drain port under the action of gravity to drain the water. The water level in the water tank drops, causing the vacuum float to drop. After the downward force of the vacuum float, the guide rod and the valve core reaches the critical point, the first magnet on the top of the valve core separates from the annular magnet in the valve body, and the valve core drops to open the negative pressure suction port. The ejector pin drops under the action of gravity and contacts the rubber sealing gasket, disconnecting the atmospheric connection port. The negative pressure suction port draws negative pressure from the water tank to close the cover of the drain port, and the negative pressure inside the water tank and the gas extraction pipeline are balanced (as shown in the figure). Figure 2 As shown in the figure), water pushes open the air inlet cover under the action of gravity and enters the water tank.

[0036] When the utility model is in the negative pressure pumping stage, the float ball is located at the bottom end of the water tank body, the top rod contacts the sealing gasket under the action of gravity and blocks the communication state between the atmosphere communication port and the valve core cavity, the valve core slides to the bottom end of the valve core cavity under the action of gravity of the float ball, the valve core does not block the negative pressure pumping port, and the negative pressure pumping port is connected with the inside of the water tank body through the ventilation groove on the inner wall of the valve body; at this time, the inside of the water tank body is in a negative pressure state, gas enters into the water tank body from the air inlet under the action of negative pressure and is pumped out from the negative pressure pumping port, and the water in the gas pipe remains in the water tank body; the water level in the water tank body gradually rises and drives the float ball to rise When the temperature rises to the critical switching position, the first magnet at the top of the valve core is attracted by the annular magnet at the top of the annular protrusion, and the valve core pushes the ejector pin to move upward to the topmost position. At this time, the drain device enters the water discharge stage, and the side wall of the valve core blocks the negative pressure air extraction port. The atmospheric connection port in the ejector pin cavity is connected with the valve core cavity, the ventilation groove, and the inside of the water tank body. The inside of the water tank body is in a normal air pressure state, and the water in the water tank body flows out from the drain port until the downward force of the float ball is greater than the adsorption force of the first magnet and the annular magnet again, and the valve core slides to the bottom of the valve core cavity again, and the drain device enters the negative pressure air extraction stage again.

[0037] The utility model adopts the coordinated control of the first magnet and the annular magnet, so that when the float drives the valve core to reach the height position of the critical point of the gas path conversion, the valve core is directly caused to rise quickly to the height of the water discharge state through the magnetic effect; when the water flow in the water tank body is reduced to a certain height, the valve core falls again to the height of the air pumping and water storage state under the gravity of the float; it can make the entire water control mechanism have clear air pumping and water storage states and water discharge states, and will not make the valve core be at the critical point height for a long time, thus avoiding the situation where the water control mechanism is frequently switched between the two states, which not only ensures that the extraction efficiency of the gas extraction pipeline is not affected, but also prolongs the service life of the water discharger, thereby effectively improving the use effect of the water discharger.

Claims

1. A water discharger, comprising a water tank body, a float, and a water control mechanism, wherein the float is arranged inside the water tank body, the water control mechanism is arranged at the top of the water tank body, the float is connected to the water control mechanism, and the water control state of the water control mechanism is controlled by the height of the float; characterized in that: The water control mechanism comprises a valve body, a bottom cover, a top cover, a valve core, a ejector pin and a sealing gasket; the top cover and the bottom cover are respectively fixedly connected to the upper and lower ends of the valve body to form an ejector pin cavity located at the upper end and a valve core cavity located at the lower end, and the ejector pin cavity and the valve core cavity are separated by an annular protrusion integrally formed on the inner wall of the valve body; the ejector pin is slidably connected in the ejector pin cavity, and the bottom end of the ejector pin passes through the annular protrusion and extends into the valve core cavity to control the connection state between the ejector pin cavity and the valve core cavity; the valve core is slidably connected in the valve core cavity and controls the blocking state of the negative pressure suction port arranged on one side of the valve core cavity, and the bottom end of the valve core extends out of the valve core cavity and is connected to the float; a first magnet is fixedly connected to the top end of the valve core, and an annular magnet is fixedly connected to the top end of the annular protrusion; when the first magnet is attracted to the annular magnet, the valve core pushes the ejector pin to move upward, the valve core blocks the negative pressure suction port, and a connection state is formed between the ejector pin cavity and the valve core cavity.

2. The water discharger according to claim 1, characterized in that: An atmosphere communication port connected to the outside atmosphere is arranged in the ejector cavity, and the atmosphere communication port is arranged on the side wall of the top cover.

3. The water discharger according to claim 2, characterized in that: A sealing gasket is embedded between the valve body and the top cover. The ejector pin is a variable diameter structure with a large outer diameter at the upper part and a small outer diameter at the lower part. The bottom end of the ejector pin passes through the sealing gasket and then passes through the annular magnet and the annular protrusion in sequence. When the upper bottom end face of the ejector pin contacts the sealing gasket, the atmosphere communication port in the ejector pin cavity and the valve core cavity are in a blocked state. When the ejector pin moves upward and does not contact the sealing gasket, the atmosphere communication port in the ejector pin cavity and the valve core cavity are in a connected state.

4. The water discharger according to claim 3, characterized in that: A ventilation groove is arranged on the inner wall of the valve body, the top of the ventilation groove is connected with the valve core cavity, and the bottom of the ventilation groove penetrates the bottom end wall of the valve body and is connected with the inside of the water tank body.

5. The water discharger according to claim 4, characterized in that: A central through hole is arranged at the center position of the top end of the water tank body, and the bottom end of the valve body passes through the central through hole and is threadedly connected with the bottom cover located in the water tank body.

6. The water discharger according to claim 5, characterized in that: The bottom end of the valve core passes through the bottom cover and extends into the water tank body and is connected to the top end of a guide rod longitudinally arranged in the water tank body, and the bottom end of the guide rod is fixedly connected to the float.

7. The water discharger according to claim 6, characterized in that: An air inlet is arranged on one side of the upper end of the water tank body, and a first baffle is arranged on the inner side of the air inlet, which is opened under a negative pressure state and blocked by gravity under normal air pressure, and the first baffle is arranged in an inclined shape, and the top of the first baffle is connected to the top pin shaft of the inner side of the air inlet; a drain outlet is arranged on one side of the bottom end of the water tank body, and a second baffle is arranged on the outer side of the drain outlet, which is opened by water flow pressure under a normal state and blocked by its own gravity under a negative pressure state, and the second baffle is arranged in an inclined shape, and the top of the second baffle is connected to the top pin shaft of the outer side of the drain outlet.

8. The water discharger according to claim 7, characterized in that: The float is a water-filled vacuum float, and the weight of the float can be adjusted by injecting water into the float.

9. The water discharger according to claim 8, characterized in that: A transparent observation plate for observing the water level inside the water tank body is arranged on the side wall of the water tank body.

10. The water discharger according to claim 9, characterized in that: The top cover, valve body and bottom cover are all made of non-magnetic material.

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