A liquid level regulating device

Abstract

The utility model provides a kind of liquid quantity regulating device, it is related to the detachable closure technical field of pressure vessel.The utility model is applied to recoil brake, including the support body connected on recoil brake, liquid regulator cylinder is connected with support body, floating piston is slidingly sealed in liquid regulator cylinder, first elastic element is located in the side portion of floating piston away from support body, wherein, the end portion of first elastic element away from floating piston is fixed in position in liquid regulator cylinder, second liquid cavity is in liquid regulator cylinder between support body and floating piston, recoil brake has first liquid cavity, and there is a stop liquid in first liquid cavity and second liquid cavity, recoil portion is slidably arranged in first liquid cavity, and there is a on-off valve on support body, and recoil portion sliding can push on-off valve to open and make first liquid cavity and second liquid cavity communicate, and recoil portion sliding can be separated from on-off valve and make it close.The utility model is simple and compact in structure, and can effectively adjust the expansion volume caused by temperature rise when artillery shoots.

Description

Technical Field

[0001] This utility model relates to the technical field of detachable sealing components for pressure vessels, and specifically to a liquid volume regulating device. Background Technology

[0002] The increase or decrease in volume of a liquid with temperature changes is a common thermal phenomenon. The recoil mechanism of a firing cannon is a pressure vessel. Without a liquid volume regulating device, the liquid inside the recoil mechanism, as a pressure vessel, will have nowhere to be released due to the increase in temperature and expansion in volume. This will cause the recoil part of the recoil mechanism to fail to return to its original position, seriously affecting the performance of the cannon.

[0003] Therefore, the liquid volume regulation function is extremely necessary in the recoil mechanism of artillery. In conventional medium and large caliber artillery, the liquid volume regulator of the recoil mechanism is either built into the recoil mechanism or connected externally through a bend in the pipe or other means.

[0004] If a traditional built-in liquid volume regulator structure is adopted, the liquid volume regulation function is built into the recoil mechanism. Some even directly reserve a portion of air in the recoil mechanism for liquid volume regulation. The structure is relatively simple, but this type of liquid volume regulator will affect the recoil pattern and make it difficult to control the recoil pattern.

[0005] If a traditional external liquid volume regulator is used, the liquid volume regulator is relatively independent, but the sealing effect of components such as bends is relatively poor. This type of liquid volume regulator also requires a long space, which will bring some trouble to the space layout. Utility Model Content

[0006] The purpose of this invention is to develop a liquid volume regulating device with a simple and compact structure that can effectively regulate the expansion volume caused by temperature rise during artillery firing.

[0007] This utility model is achieved through the following technical solution:

[0008] A liquid volume regulating device, applied to a recoil mechanism, comprising:

[0009] Support body, connected to the recoil mechanism;

[0010] The liquid regulator cylinder is connected to the support body;

[0011] A floating piston is slidably disposed in the liquid conditioner cylinder and the two are slidably sealed.

[0012] The first elastic element is located on the side of the floating piston away from the support.

[0013] Wherein, the end of the first elastic element away from the floating piston is fixed in the position inside the liquid regulator cylinder, the liquid regulator cylinder between the support body and the floating piston is a second liquid chamber, the anti-recoil device has a first liquid chamber, the first liquid chamber and the second liquid chamber are provided with a recoil liquid, a recoil part is slidably provided in the first liquid chamber, the support body is provided with an on-off valve, the recoil part can slide to push the on-off valve to open so that the first liquid chamber and the second liquid chamber are connected, the recoil part can slide to disengage from the on-off valve to close it.

[0014] Optionally, a top cover is provided inside the liquid regulator cylinder on the side of the floating piston away from the support, and the two ends of the first elastic element are in contact with the top cover and the floating piston, respectively.

[0015] Optionally, the first elastic element is a first spring, and the floating piston and the top cover end are respectively provided with a circular groove for the first spring to be engaged.

[0016] Optionally, the top cover is provided with a filter plug for filtering the air entering the liquid regulator cylinder inside the top cover.

[0017] Optionally, the anti-recoil device includes an outer cylinder, the recoil portion is slidably disposed within the outer cylinder, the cavity within the outer cylinder through which the recoil portion slides is a first liquid cavity, and the support body and liquid regulator cylinder are disposed within the outer cylinder.

[0018] Optionally, the outer wall of the liquid conditioner cylinder is provided with at least one O-ring seal that forms a seal with the inner wall of the outer cylinder, and the liquid conditioner cylinder is inserted into the outer cylinder and bolted to the outer cylinder.

[0019] Optionally, the on / off valve includes a valve housing fixed to a support body, a valve cavity extending through the valve housing, a valve body slidably disposed within the valve cavity, the valve body being hollow inside and having a slot on its outer wall communicating with the interior, the valve body and the valve cavity having matching end caps and sealing holes at their ends in the second liquid cavity, and a second elastic element being disposed between the end of the valve body in the first liquid cavity and the valve housing.

[0020] Optionally, the end cap is frustum-shaped, the small diameter end of the end cap is coaxially connected to the valve body and the small diameter end is located on the side near the seat portion, and the sealing hole is frustum-shaped with a shape and size corresponding to the end cap.

[0021] Optionally, the valve body is rod-shaped, and the end of the valve body near the seat portion is provided with a support that cooperates with the seat portion. The second elastic element is located between the support and the valve housing and is located around the valve body.

[0022] Optionally, the second elastic element is a second spring, and the supports and valve housings are provided with grooves for placing the second spring at their close ends.

[0023] The beneficial effects of this utility model are:

[0024] This utility model features a simple, compact structure, small size, reliable operation, and light weight. Mounted on the recoil mechanism, it effectively regulates the expansion volume of the recoil fluid caused by temperature increases during artillery firing. During firing, the recoil mechanism absorbs some recoil energy, and the converted heat causes the fluid to expand. The space for compensating for the expanding fluid is adjusted by the elastic sliding of a floating piston. This utility model can be directly inserted into the end of the recoil mechanism, making installation and disassembly convenient. The O-ring seal is also extremely reliable. When recoil occurs, the on / off valve isolates the first liquid chamber that absorbs some recoil energy from the second liquid chamber that regulates the liquid volume, thus preventing any impact on the recoil pattern. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a structural diagram of the present utility model;

[0027] Figure 2 This is a structural diagram of an on / off valve.

[0028] Reference numerals in the attached drawings: 1. Outer cylinder; 2. Support body; 3. Liquid regulator cylinder; 4. Floating piston; 5. Top cover; 6. On / off valve; 61. Valve shell; 62. Valve cavity; 63. Valve body; 64. Support; 65. Second spring; 66. End cap; 67. Sealing hole; 7. Seated part; 8. Air filter plug; 9. First spring; 10. First liquid cavity; 11. Second liquid cavity. Detailed Implementation

[0029] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0030] In this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0032] like Figure 1 and Figure 2 As shown, this utility model discloses a liquid volume regulating device, which is applied to a recoil device. It includes a support body 2 connected to an outer cylinder 1, a recoil portion 7 slidably provided inside the outer cylinder 1, and a liquid regulator cylinder 3 connected to the side of the support body 2 away from the recoil portion 7. Both the support body 2 and the liquid regulator cylinder 3 are located inside the outer cylinder 1.

[0033] The support body 2 is sealed and fixedly connected to the outer cylinder 1. The outer wall of the liquid regulator cylinder 3 is provided with at least one O-ring that forms a seal with the inner wall of the outer cylinder 1. After the liquid regulator cylinder 3 is inserted into the outer cylinder 1 and comes into close contact with the support body 2, the liquid regulator cylinder 3 is bolted to the outer cylinder 1, thereby realizing the detachable connection between the liquid regulator cylinder 3 and the outer cylinder 1.

[0034] A floating piston 4 is slidably installed inside the liquid regulator cylinder 3, and a top cover 5 is installed inside the liquid regulator cylinder 3 on the side of the floating piston 4 away from the support body 2.

[0035] The cavity in which the inner rear seat 7 of the outer cylinder 1 slides is the first liquid cavity 10, the cavity between the support body 2 and the floating piston 4 in the liquid regulator cylinder 3 is the second liquid cavity 11, and the cavity between the floating piston 4 and the top cover 5 is the air cavity.

[0036] The top cover 5 is equipped with an air filter plug 8, which connects the air chamber to the outside environment and filters the air entering the air chamber. The top cover 5 and the air filter plug 8 ensure that the air chamber is in balance with the outside air pressure, while keeping the inside of the liquid conditioner cylinder 3 where the floating piston 4 slides clean, preventing dust and impurities from entering the inner wall of the liquid conditioner cylinder 3 and affecting the sliding of the floating piston 4.

[0037] A first spring 9 is provided inside the air chamber. The two ends of the first spring 9 are in contact with the top cover 5 and the floating piston 4, respectively. The floating piston 4 and the top cover 5 are respectively provided with circular grooves for the first spring 9 to be inserted. The elastic force of the first spring 9 drives the floating piston 4 and the top cover 5 to move away from each other.

[0038] Both the first liquid chamber 10 and the second liquid chamber 11 contain stagnant liquid. The support body 2 and the liquid regulator cylinder 3 are sealed to the inner wall of the outer cylinder 1. The floating piston 4 is slidably sealed to the inner wall of the liquid regulator cylinder 3. The support body 2 is equipped with an on / off valve 6 that can connect or disconnect the first liquid chamber 10 and the second liquid chamber 11.

[0039] When recoil begins, the recoil section 7 disengages from the on / off valve 6, and the on / off valve 6 closes. When the return stroke is about to reach its final position, the recoil section 7 pushes the on / off valve 6 to open it. When the on / off valve 6 is open, the first liquid chamber 10 and the second liquid chamber 11 are connected. If the liquid expands due to temperature rise, the expanding liquid will push the floating piston 4 to slide away from the support body 2, and the first spring 9 will compress accordingly to provide space for the liquid expansion. Conversely, if the liquid contracts due to temperature drop, the floating piston 4 will slide towards the support body 2 under the force of the first spring 9, and the first spring 9 will extend accordingly to allow the floating piston 4 to adapt to the shrinking volume of the recoil liquid.

[0040] The on / off valve 6 includes a cylindrical valve housing 61 fixed on the support body 2, a valve cavity 62 extending through the valve housing 61, the valve cavity 62 being opened parallel to the sliding direction of the rear seat part 7, and a valve body 63 slidingly disposed inside the valve cavity 62.

[0041] The valve body 63 is rod-shaped and hollow. It has slots along its length, allowing the hollow interior of the valve body 63 to communicate with the outside. Multiple slots can be present, enabling communication between the first liquid chamber 10 and the second liquid chamber 11 through these slots and the interior of the valve body 63. The valve body 63 is longer than the valve cavity 62, ensuring that the slots on both sides of the valve body 63 are positioned within the first and second liquid chambers 10 and 11, thus connecting them.

[0042] A support 64 is provided at the end of the valve body 63 near the rear seat portion 7, that is, at the end of the valve body 63 located in the first liquid chamber 10. A second spring 65 is provided on the valve body 63 between the support 64 and the valve housing 61. The ends of the support 64 and the valve housing 61 that are close to each other are provided with grooves for the second spring 65 to be placed. The elastic force of the second spring 65 pushes the support 64 and the valve housing 61 away from each other.

[0043] The valve body 63 is provided with a cap 66 at the end away from the seat portion 7, that is, at the end of the valve body 63 located in the second liquid chamber 11. The valve chamber 62, which is closer to the support body 2, is provided with a sealing hole 67 that seals with the cap 66. The cap 66 is frustum-shaped, and the small diameter end of the cap 66 is coaxially connected to the valve body 63 and is located closer to the seat portion 7. The sealing hole 67 is frustum-shaped with a shape and size corresponding to the cap 66.

[0044] After the recoil begins, the recoil part 7 slides away from the support body 2 and disengages from the support 64. Under the elastic force of the second spring 65, the support 64 slides away from the valve housing 61, thereby driving the valve body 63 to slide into the first liquid chamber 10 within the valve chamber 62 until the end cap 66 seals the sealing hole 67, thus closing the on / off valve 6.

[0045] When the recoil is about to reach its final position, the recoil portion 7 slides towards the support body 2 until the recoil portion 7 pushes the support 64. The support 64 slides towards the valve housing 61, the second spring 65 is compressed, and the valve body 63 slides towards the second liquid chamber 11, causing the end cap 66 to disengage from the sealing hole 67. Since the valve body 63 is hollow inside and has slots arranged in the length direction, the second liquid chamber 11 and the first liquid chamber 10 are connected through the slots and the hollow interior of the valve body 63. The first liquid chamber 10 and the second liquid chamber 11 are connected, allowing the floating piston 4 to slide adaptively to adjust the liquid volume in the first liquid chamber 10. When the temperature of the liquid in the first liquid chamber 10 is high and the volume expands, the floating piston 4 slides accordingly to increase the volume of the second liquid chamber 11 to accommodate the expanded liquid. When the temperature of the liquid in the first liquid chamber 10 decreases and the volume contracts, the floating piston 4 slides accordingly to decrease the volume of the second liquid chamber 11 to ensure that the amount of liquid in the first liquid chamber 10 is sufficient.

[0046] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the technical solutions of this utility model. Any technical solution that can be implemented based on the above embodiments without creative effort should be considered to fall within the scope of protection of this utility model patent.

Claims

1. A liquid volume regulating device, characterized in that, Applications in anti-recoil devices include: Support body, connected to the recoil mechanism; The liquid regulator cylinder is detachably connected to the anti-recoil device and contacts the support body; A floating piston is slidably disposed in the liquid conditioner cylinder and the two are slidably sealed. The first elastic element is located on the side of the floating piston away from the support. Wherein, the end of the first elastic element away from the floating piston is fixed in the position inside the liquid regulator cylinder, the liquid regulator cylinder between the support body and the floating piston is a second liquid chamber, the anti-recoil device has a first liquid chamber, the first liquid chamber and the second liquid chamber are provided with a recoil liquid, a recoil part is slidably provided in the first liquid chamber, the support body is provided with an on-off valve, the recoil part can slide to push the on-off valve to open so that the first liquid chamber and the second liquid chamber are connected, the recoil part can slide to disengage from the on-off valve to close it.

2. The liquid volume regulating device according to claim 1, characterized in that, The floating piston has a top cover inside the liquid regulator cylinder on the side away from the support body, and the two ends of the first elastic element are in contact with the top cover and the floating piston, respectively.

3. The liquid volume regulating device according to claim 2, characterized in that, The first elastic element is a first spring, and the floating piston and the top cover end are respectively provided with a circular groove for the first spring to be engaged.

4. The liquid volume regulating device according to claim 2, characterized in that, The top cover is equipped with a filter plug for filtering the air entering the liquid regulator cylinder inside the top cover.

5. The liquid volume regulating device according to claim 1, characterized in that, The recoil mechanism includes an outer cylinder, the recoil portion is slidably disposed within the outer cylinder, the cavity within the outer cylinder in which the recoil portion slides is a first liquid cavity, and the support body and liquid regulator cylinder are disposed within the outer cylinder.

6. The liquid volume regulating device according to claim 5, characterized in that, The outer wall of the liquid regulator cylinder is provided with at least one O-ring seal that forms a seal with the inner wall of the outer cylinder. The liquid regulator cylinder is inserted into the outer cylinder and bolted to the outer cylinder.

7. The liquid volume regulating device according to any one of claims 1 to 6, characterized in that, The on / off valve includes a valve shell fixed to a support body, a valve cavity extending through the valve shell, a valve body slidably disposed within the valve cavity, the valve body being hollow inside and having a slot on its outer wall communicating with the interior, the valve body and the valve cavity having matching end caps and sealing holes at the ends of the valve body and the valve cavity in the second liquid cavity respectively, and a second elastic element being disposed between the end of the valve body in the first liquid cavity and the valve shell.

8. The liquid volume regulating device according to claim 7, characterized in that, The end cap is shaped like a frustum, and the small diameter end of the end cap is coaxially connected to the valve body and is located on the side near the rear seat portion. The sealing hole is shaped like a frustum corresponding to the end cap in shape and size.

9. The liquid volume regulating device according to claim 7, characterized in that, The valve body is rod-shaped, and a support that cooperates with the rear seat is provided at the end of the valve body near the rear seat. The second elastic element is located between the support and the valve shell and is located on the periphery of the valve body.

10. The liquid volume regulating device according to claim 9, characterized in that, The second elastic element is a second spring, and the support and the valve housing are provided with grooves for placing the second spring at their close ends.

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