Markov bottle capable of adjusting water supply pressure by lifting breather pipe

Abstract

The utility model discloses a Mariotte bottle capable of adjusting water supply pressure by lifting a breather pipe, which aims at overcoming the defects that the traditional Mariotte bottle is only provided with one water outlet, and the water level in the breather pipe is inconvenient to adjust when water is added into the bottle, and is additionally provided with a water outlet, and the water outlet can be kept connected with a water supply pipe when water needs to be added. And the water level in the breather pipe is adjusted through the water outlet, so that the operation steps during water adding are avoided from being tedious. In addition, external threads are machined on the outer surface of the breather pipe in the Markov bottle, a sleeve with a threaded hole is arranged on the vent hole, and the threads in the sleeve are matched with the external threads on the breather pipe, so that the position of the breather pipe in the Markov bottle can be adjusted by rotating the breather pipe. The pressure of the Mariotte bottle during water supply is adjustable, and the use flexibility of the Mariotte bottle is improved.

Description

A Marsh bottle with adjustable water supply pressure via a lift-up vent pipe Technical Field

[0001] This utility model belongs to the technical field of Marshall bottle water supply device, specifically relating to a Marshall bottle whose water supply pressure can be adjusted by lifting and lowering the vent pipe. Background Technology

[0002] The Mariotte bottle, also known as a Mariotte flask, is a type of constant-pressure bottle used as a water supply device. It is characterized by its simple structure and stable pressure. A traditional Mariotte bottle has an opening in the stopper through which a vent tube connects the internal space of the bottle to the outside. To ensure a tight seal, the vent tube is fixedly connected to the stopper. The Mariotte bottle also has an outlet at the bottom. During water supply, the space inside the bottle, excluding the vent tube, is filled with water, or the water level is at a relatively high position. The vent tube is either empty or at a relatively low position. Thus, the pressure at the outlet is a constant value, calculated as the pressure difference between the water level in the vent tube and the central axis of the outlet. After a period of water supply, the water level in the space outside the vent tube will be level with the water level in the vent tube. Then the pressure at the outlet will gradually decrease as the water level drops. At this point, you can only continue to supply water at constant pressure by opening the bottle stopper to add water and then letting the water level in the vent tube return to its initial state. Such an operation is very cumbersome.

[0003] Furthermore, in traditional Marviers, the relative position between the vent tube and the bottle body is fixed. If the water supply pressure needs to be changed, the water level in the vent tube must be adjusted, but the water level in the vent tube is difficult to control precisely. To ensure a constant water supply pressure, the water level in the vent tube is usually kept at the lower end of the vent tube. Therefore, traditional Marviers can only supply water at a constant pressure, limiting their flexibility of use. Summary of the Invention

[0004] The purpose of this invention is to provide a Marsh bottle whose water supply pressure can be adjusted by lifting and lowering the vent pipe, thereby simplifying the steps required to achieve continuous water supply and giving the Marsh bottle the ability to supply water at different constant pressure values, thus increasing its flexibility of use.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A Marshall bottle with adjustable water supply pressure via a lifting vent pipe includes a bottle body made entirely of transparent material. The top has a water inlet and a vent, while the side wall has a drain outlet and a water outlet. A water inlet valve, a drain valve, and a water outlet valve are sequentially installed on the water inlet, drain outlet, and water outlet. A vent pipe, a straight tube with external threads machined on its outer surface, passes through the vent. The lower half of the vent pipe is located inside the upper bottle body, while the upper half extends out of the vent and passes through a sleeve with internal threads. The sleeve and vent pipe are connected via a threaded fit. The lower end of the sleeve is fixedly connected to the outer edge of the vent, and the upper end of the vent pipe extends out of the sleeve and is fixedly fitted with a handle. When the water inlet valve, drain valve, and water outlet valve are all closed, the space inside the bottle can communicate with the outside through the vent pipe.

[0007] In existing technology, Marshall bottles have only one outlet. After refilling the bottle, some water must be drained through the outlet to adjust the water level in the vent pipe to match the previous pressure. However, in practice, the outlet is often connected to a water supply pipe. Adjusting the water level in the vent pipe requires disconnecting the supply pipe, then reconnecting it after adjustment. This is not only cumbersome but also makes it difficult to ensure a tight seal between the supply pipe and the outlet, affecting pressure stability during water supply. Therefore, this invention adds a drain outlet to the Marshall bottle. The inlet, drain, and outlet are equipped with corresponding valves: an inlet valve, a drain valve, and an outlet valve. The drain valve is normally closed. When adding water, the outlet valve is closed first, the inlet valve is opened, and once the water level reaches a certain height, the inlet valve is closed and the drain valve is opened. Since the space inside the bottle can only be connected to the outside through the drain outlet and the vent pipe, air will enter the bottle through the vent pipe when the drain valve drains water. Once the water level in the vent pipe drops to the predetermined height, the drain valve is closed and the outlet valve is opened to continue supplying water at constant pressure. This avoids the problem of repeatedly connecting and disconnecting the tubing. In addition, the vent pipe of a traditional Marshall bottle is fixed in position relative to the bottle body and can only supply water at a constant pressure. However, in this Marshall bottle, the outer surface of the vent pipe is machined with external threads, and a sleeve with an internal threaded hole is installed on the vent. This allows the vent pipe to be directly rotated to adjust the position of its lower end in the bottle to change the water supply pressure. Lubricating oil can be applied between the vent pipe and the sleeve to increase the sealing performance.

[0008] Further optimization resulted in a cylindrical bottle body with graduated lines distributed along its height on the side walls. These lines facilitate adjustment of the vent tube's position; the pressure during water supply can be determined by the height difference between the lower end of the vent tube and the center axis of the water outlet. The graduated lines require a cylindrical shape, meaning the cross-sectional area of ​​the internal space along its height must be equal; otherwise, the distribution of the lines would be uneven. Furthermore, the graduated lines also allow for easy monitoring of water supply volume. Knowing the cross-sectional area of ​​the internal space along its height, the water supply volume can be calculated by observing the change in water level before and after water flow.

[0009] Further optimization involves ensuring that any cross-section of the bottle body perpendicular to its height is formed by an arc and two straight edges. The arc corresponds to a central angle of 270°, and the two straight edges are of equal length and perpendicular to each other, while both are tangent to the arc. The vent is also tangent to the two straight edges at the top of the bottle body, and the graduation lines are located on the planar portion of the bottle's side wall. The reason for designing the bottle body in this shape and placing the vent and vent pipe in these positions is to reduce the force exerted on the vent pipe by the water flow during long-term water supply, preventing loosening of the connection between the vent pipe and the sleeve. During water supply, if the water flows out of the bottle at a high velocity, the remaining water in the bottle will form a vortex, and the vent pipe, situated within this vortex, may experience a Karman vortex street phenomenon under the influence of the water flow. The Karman vortex street phenomenon refers to the phenomenon where, when a fluid flows over a cylindrical object at a certain velocity, vortices of opposite rotation periodically and alternately appear on both sides of the object tangent to the streamlines. These vortices detach from the object, forming a series of vortices behind it, and then connecting to form a vortex street after leaving the object due to mutual disturbance. When a vortex street occurs, the alternating vortices on both sides exert a periodic force on the object. If the frequency of the force change is close to the object's natural frequency, the object may be damaged due to resonance. In the Martens bottle of this invention, because there is a right angle in the cross-section along the height direction of the bottle body, the swirling flow in the bottle passes directly before the right angle and does not flow into the corner. Placing the vent pipe in the corner also avoids the swirling flow acting on the vent pipe and causing the Karman vortex street phenomenon. This helps to prevent the vent pipe from loosening or breaking during long-term use, ensuring the reliability of the Martens bottle seal and extending its service life. When the ventilator is at a right angle, in order to facilitate accurate adjustment of the ventilator's position, the scale line should not be too far from the ventilator. Therefore, the ventilator should also be set near the right angle.

[0010] Further optimization involves placing both the drain outlet and the water outlet at the bottom of the bottle's side wall. Positioning the water outlet at the bottom maximizes the adjustable range of water pressure and the overall water supply. Since the drain outlet is used to adjust the water level in the vent pipe, its height must be lower than the lowest point reachable by the vent pipe; therefore, the drain outlet and water outlet must be at the same height.

[0011] Further optimization involves installing a base at the bottom of the bottle. Because the Marsh bottle of this invention is cylindrical, its center of gravity is relatively high. To prevent it from being easily tipped over during use, a base needs to be fixedly installed at the bottom of the bottle to increase its stability.

[0012] Further optimization resulted in all three valves—inlet, drain, and outlet—being gate valves, with identical models and specifications. Gate valves are highly reliable, offering excellent sealing and rapid opening and closing, making them ideal for Marshall bottles. Since the inlet, drain, and outlet valves function essentially the same in a Marshall bottle—requiring only the ability to achieve both open and closed states—the same model of gate valve is used for ease of maintenance and replacement.

[0013] The beneficial effects of this invention are as follows:

[0014] 1. The Marsh bottle of this utility model has a drain outlet on the bottle body. During the water filling process, the outlet can remain connected to the water supply pipe. The water level in the vent pipe can be adjusted through the drain outlet, which avoids the cumbersome operation steps and ensures the reliability of constant pressure water supply of the Marsh bottle.

[0015] 2. In this utility model, the vent tube in the Marshall bottle is threadedly connected to the sleeve installed at the vent port. By rotating the vent tube, the position of the vent tube in the Marshall bottle can be changed to change the pressure during water supply, thus increasing the flexibility of the use of the Marshall bottle.

[0016] 3. The body of the Marsh bottle is composed of a rounded part and a right-angled part. The vent tube is located in the right-angled corner, which avoids the vibration of the vent tube caused by the Karman vortex street phenomenon and ensures the reliability of the constant pressure water supply of the Marsh bottle. Attached Figure Description

[0017] Figure 1 is a schematic diagram of a Marsh bottle whose water supply pressure can be adjusted by lifting and lowering the vent pipe;

[0018] Figure 2. Overall schematic diagram of the ventilation tube;

[0019] Figure 3. Overall schematic diagram of the bottle;

[0020] Figure 4 shows an overall top view of a Marsh bottle whose water supply pressure can be adjusted via a lifting vent pipe. Detailed Implementation

[0021] Example 1:

[0022] A Marshall bottle with adjustable water level via a lifting vent pipe includes a bottle body 1, which is entirely made of glass and is cylindrical in shape. Any cross-section of the bottle body 1 perpendicular to its height is formed by an arc and two straight sides. The arc corresponds to a central angle of 270°. The two straight sides are of equal length and perpendicular to each other, and both are tangent to the arc. The graduation lines are located on the planar portion of the side wall of the bottle body 1. The top of the bottle body 1 has an inlet 10 and a vent 13. The center of the inlet 10 coincides with the center of the arc at the top of the bottle body 1, and the vent 13 is tangent to two straight edges at the top of the bottle body 1. The lower end of the side wall has a drain outlet 11 and a water outlet 12. The drain outlet 11 is located on the arc portion of the side wall of the bottle body 1, and the water outlet 12 is located on the edge where two rectangular planes meet in the planar portion. Both the drain outlet 11 and the water outlet 12 are located at the lowest point of the side wall of the bottle body 1, and their central axes are collinear and located on the plane of symmetry of the bottle body 1. The inlet 10, drain outlet 11, and water outlet 12 are respectively equipped with an inlet valve 2, a drain valve 3, and a water outlet valve 4, all of which are shut-off valves. A base 9 is fixedly installed at the bottom of the bottle body 1. The base 9 has the same shape as the bottom of the bottle body 1 but is larger in size. The line connecting the center of the arc part at the bottom of the bottle body 1 and the center of the arc part of the base 9 is parallel to the height direction of the bottle body 1, and the symmetry plane of the base 9 coincides with the symmetry plane of the bottle body 1.

[0023] A sleeve 5 is fixedly mounted on the vent 13. A threaded hole is drilled in the sleeve 5, the central axis of which coincides with the central axis of the vent 12, and the inner diameter of the threaded hole is equal to the diameter of the vent 12. A vent pipe 6, a straight pipe with external threads 8 machined on its outer surface, is inserted through the threaded hole of the sleeve 5. A handle 7, which is annular, is fixedly connected to its upper end, with the pipe opening at the center of the annulus. The external threads 8 are matched with the threads in the threaded hole of the sleeve 5. The lower half of the vent pipe 6 is located inside the bottle body 1, and the upper half extends from the vent 13. When the inlet valve 2, drain valve 3, and outlet valve 4 are all closed, the space inside the bottle body 1 can communicate with the outside through the vent pipe 6. When the handle 7 contacts the sleeve 5, the lower end of the vent pipe 6 is at a height higher than the central axis of the outlet 12. The bottle body has dimensional scale lines engraved on the flat part of the side wall along the height direction, and the scale lines are located near the edge where the two rectangular planes meet.

[0024] When using the Marshall bottle described in this invention, first grasp the handle 7 and rotate the vent tube 6, adjusting the lower end of the vent tube 6 to the desired position according to the size scale lines on the bottle body 1. Then, open the inlet valve 2, keeping the drain valve 3 and outlet valve 4 closed, and pour water into the Marshall bottle through the inlet valve 2 until the water level reaches the predetermined position. Then, close the inlet valve 2 and open the drain valve 3, closing the drain valve 3 when the water level drops to the lower end of the vent tube 6. After that, let it stand for half an hour and check the airtightness of the Marshall bottle. If the water level in the vent tube 6 does not rise after half an hour, it proves that the airtightness is good. At this time, open the outlet valve 4 to start constant pressure water supply. Record the water level in the bottle before the outlet valve 4 is opened. The water supply volume can be obtained by comparing the water level before opening with the remaining water level in the bottle after stopping the water supply.

[0025] If continuous water supply is required, immediately close the outlet valve 4 when the water level in the Marshall bottle drops to the lower end of the vent pipe 6. Determine whether the position of the vent pipe 6 needs adjustment based on the pressure requirement of the next water supply. If adjustment is required, repeat all steps except for checking the airtightness. If no adjustment is required, open the inlet valve 2 to add water, then close the inlet valve 2 and open the drain valve 3 to drain the water in the vent pipe 6. After that, close the drain valve 3 and open the outlet valve 4 to start water supply.

[0026] It is understood that the bottle body 1 can also be other shapes besides those described in Example 1.

[0027] It is understood that the inlet 10, outlet 11 and outlet 12 on the bottle body 1 may be located in other positions than those described in Embodiment 1.

[0028] It is understandable that inlet valve 2, drain valve 3, and outlet valve 4 can also be other types of valves besides shut-off valves, and the types of the three valves can also be different.

[0029] It is understood that in Embodiment 1, the Marsh bottle may not have a base 9, or the base 9 may be of other shapes.

[0030] Understandably, handle 7 could also be any shape other than a ring.

[0031] Understandably, the graduation lines marked on bottle 1 could also be volume graduation lines or other types of graduation lines.

Claims

1. A Marshall bottle with adjustable water supply pressure via a lifting vent pipe, characterized in that: The bottle includes a body (1), which is made entirely of transparent material. A water inlet (10) and a vent (13) are located at the top. A drain outlet (11) and a water outlet (12) are located on the side wall of the body (1). A water inlet valve (2), a drain valve (3), and a water outlet valve (4) are installed on the water inlet (10), drain outlet (11), and water outlet (12) respectively. A vent pipe (6) is inserted through the vent (13). The vent pipe (6) is a straight pipe with external threads (8) machined on its outer surface. The vent pipe (6) is located below... The upper half is located inside the upper bottle body (1). The upper half of the vent (13) extends out and passes through the sleeve (5). The sleeve (5) is provided with internal threads. The sleeve (5) and the vent pipe (6) are connected by threaded fitting. The lower end of the sleeve (5) is fixedly connected to the outer edge of the vent (13). The upper end of the vent pipe (6) extends out of the sleeve (5) and is fixedly equipped with a handle (7). When the inlet valve (2), drain valve (3), and outlet valve (4) are all in the closed state, the space in the bottle body (1) can be connected to the outside through the vent pipe (6).

2. A Marshall bottle as described in claim 1, wherein the water supply pressure can be adjusted via a lifting vent pipe, characterized in that: The bottle body (1) is cylindrical in shape, and the side wall of the bottle body (1) is marked with scale lines distributed along the height direction.

3. A Marshall bottle as described in claim 2, wherein the water supply pressure can be adjusted via a lifting vent pipe, characterized in that: Any cross section of the bottle body (1) perpendicular to the height direction is formed by an arc and two straight sides. The arc corresponds to a central angle of 270°. The two straight sides are of equal length and perpendicular to each other. At the same time, both straight sides are tangent to the arc. The vent (13) is tangent to the two straight sides at the top of the bottle body (1). The scale line is located on the plane part of the side wall of the bottle body (1).

4. A Marshall bottle as described in claim 3, wherein the water supply pressure can be adjusted via a lifting vent pipe, characterized in that: Both the drain outlet (11) and the water outlet (12) are located at the lower end of the side wall of the bottle body (1).

5. A Marshall bottle as described in claim 4, wherein the water supply pressure can be adjusted via a lifting vent pipe, characterized in that: The bottom of the bottle body (1) is fixedly equipped with a base (9).

6. A Marshall bottle as described in claim 5, wherein the water supply pressure can be adjusted via a lifting vent pipe, characterized in that: The inlet valve (2), drain valve (3) and outlet valve (4) are all stop valves and the three stop valves have the same model and specifications.

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