A quick opening and closing device for a lifting waterproof hammer

Abstract

This invention discloses a lifting-type rapid opening and closing device for water hammer, relating to the field of flow control technology. The device includes a flow component and a pressure-balancing component. The flow component includes a main channel and a cover plate located at the outlet end of the main channel and movable towards the main channel. The cover plate has an auxiliary drainage hole. The pressure-balancing component includes a plug mechanism located within the auxiliary drainage hole and a traction mechanism located on the main channel and connected to the plug mechanism. This traction mechanism, by adjusting its own length, drives the plug mechanism to move longitudinally within the auxiliary drainage hole. The plug mechanism includes an upper support plate of a flow channel connected to the traction mechanism and a drainage plug located below the upper support plate and embedded in the auxiliary drainage hole. The upper support plate has a diversion channel communicating with the auxiliary drainage hole. This invention uses a straight-type closing cover plate, which can reduce the opening and closing time of the main channel. Combined with the pressure-balancing component, it can adjust the pressure inside and outside the main channel according to the closing requirements of the main channel, preventing water hammer.

Description

Technical Field

[0001] This invention relates to the field of flow control technology, and specifically to a rapid opening and closing device for a lifting type waterproof hammer. Background Technology

[0002] Sea access valves are installed at the sea entrances of ships, offshore platforms, and diving equipment to control the flow of cooling water between the inside and outside of the tank. In the event of an accident such as a breach in the internal cooling water pressure boundary, these valves can quickly and reliably disconnect the connection to the external cooling water, preventing the accident from escalating further.

[0003] Traditional sea valves include butterfly valves and tongue valves. On one hand, the valve plate structure occupies part of the flow channel, causing significant internal flow disturbance and increasing flow resistance. On the other hand, these valves open and close by rotating the valve plate, resulting in a relatively long operating time. For large-diameter and high-pressure differential applications, the opening and closing torque is large, requiring significant drive power. This necessitates the use of high-power electric motors or a worm gear structure to convert hydraulic drive force into rotational torque, leading to a large drive mechanism. Furthermore, due to fluid inertia and compressibility, water hammer can easily occur in extreme situations, such as during pump start-up and shutdown or rapid valve opening and closing, when the fluid velocity or channel volume changes drastically, causing damage to the pipeline system and equipment. Summary of the Invention

[0004] This application provides a lifting-type water hammer rapid opening and closing device, which can solve the technical problems existing in the prior art where traditional sea valves use a spiral opening and closing mechanism, which has high opening and closing pressure, occupies the space of the flow channel, and at the same time, water hammer phenomenon is prone to occur when the fluid flow rate or channel volume changes rapidly during the rapid opening and closing process, causing damage to pipeline systems and equipment.

[0005] This application provides a quick-opening and closing device for a lifting waterproof hammer, including:

[0006] A flow assembly includes a main channel and a cover plate located at the outlet end of the main channel and movable toward the main channel to cover the main channel. The cover plate is provided with auxiliary drainage holes, and the inner diameter of the auxiliary drainage holes gradually increases toward the direction away from the main channel.

[0007] A pressure balancing assembly includes a plunger mechanism located within the auxiliary drain hole and a traction mechanism located on the main channel and connected to the plunger mechanism for adjusting its own length to drive the plunger mechanism to longitudinal displacement within the auxiliary drain hole. The plunger mechanism includes an upper support plate protruding from the auxiliary drain hole and connected to the traction mechanism, and a drain plug located below the upper support plate and conforming to the shape of the auxiliary drain hole to be embedded within the auxiliary drain hole. The upper support plate is provided with a plurality of branch channels communicating with the auxiliary drain hole.

[0008] In one embodiment, a connecting plate is provided on the outer periphery of the bottom of the main channel, and the connecting plate is provided with a plurality of driving mechanisms spaced apart along the circumference of the main channel.

[0009] In one embodiment, the cover plate includes a mating plate for matching the connecting plate and a recess located in the middle of the mating plate to mate with the main channel, wherein the auxiliary drainage hole is located at the center of the recess.

[0010] In one embodiment, the fixed end of the drive mechanism is fixedly disposed above the connecting plate, and the telescopic end of the drive mechanism passes through the connecting plate and is connected to the mating plate.

[0011] In one embodiment, there are two traction mechanisms, which are symmetrically arranged radially on the connecting plate along the main channel, and the traction directions of the two traction mechanisms are opposite to each other so as to pull the plunger mechanism to move longitudinally in opposite directions within the auxiliary drainage hole.

[0012] In one embodiment, the traction mechanism includes a fixed base and a wind turbine rotatably mounted on the fixed base, and the wind turbine is provided with a traction rope for connecting the upper support plate.

[0013] In one embodiment, a rotating member is provided between the traction rope and the upper support plate, one end of which is rotatably connected to the inner wall of the cover plate.

[0014] In one embodiment, the end of the rotating member away from the cover plate is provided with two spaced-apart connecting holes for connecting the traction ropes of the two traction mechanisms respectively, and the rotating member is also provided with connecting ears for rotatably connecting the upper support plate.

[0015] In one embodiment, the cover plate is further provided with a steering wheel located on the side of the plunger mechanism away from the traction member, for one of the traction ropes to pass through.

[0016] In one embodiment, the outer circumference of the upper support plate is provided with a plurality of horizontally extending support points, and the extended ends of the support points are bent toward the drain plug and abut against the inner surface of the cover plate, forming a diversion channel between adjacent support points.

[0017] The beneficial effects of the technical solutions provided in this application include:

[0018] The lifting-type water hammer quick-opening and closing device in this application uses a piston reciprocating motion drive mechanism to drive the cover plate to move linearly up and down, thereby opening and closing the main channel. This results in no turbulent components inside the main channel, good flow field uniformity, low flow resistance, low driving power, and shorter opening and closing time. By setting a plug mechanism, the pressure inside and outside the main channel is balanced, reducing opening and closing resistance and preventing water hammer. At the same time, when the main channel is closed, it can also achieve self-sealing by utilizing the pressure difference between the internal and external media, resulting in high sealing reliability. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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.

[0020] Figure 1 A schematic diagram of a lifting-type waterproof hammer quick-opening and closing device provided in an embodiment of this application;

[0021] Figure 2 A schematic diagram of the plug mechanism in a lifting waterproof hammer quick opening and closing device provided in this application embodiment;

[0022] Figure 3 A schematic diagram of the flow component structure in a lifting-type waterproof hammer quick-opening and closing device provided in an embodiment of this application;

[0023] Figure 4 A schematic diagram of the pressure balancing component structure in a lifting-type waterproof hammer quick-opening and closing device provided in an embodiment of this application;

[0024] Figure 5 Enlarged view of the force transfer component in a lifting-type waterproof hammer quick opening and closing device provided in the embodiments of this application;

[0025] Figure 6 A top view of the upper support plate in a lifting waterproof hammer quick opening and closing device provided in an embodiment of this application;

[0026] Figure 7 This is a schematic diagram of water flow when the main channel of a lifting-type waterproof hammer quick-opening and closing device is opened, provided in an embodiment of this application.

[0027] Figure 8 This is a schematic diagram of water flow when the main channel of a lifting-type waterproof hammer quick-opening and closing device is closed, provided in an embodiment of this application.

[0028] Figure 9 This is a schematic diagram showing the completed state of the main channel cover in a lifting-type waterproof hammer quick-opening and closing device provided in an embodiment of this application.

[0029] In the diagram: 1. Main channel; 2. Cover plate; 201. Mating plate; 202. Recessed part; 3. Auxiliary drainage hole; 4. Plug mechanism; 401. Upper support plate; 4011. Support point; 402. Drain plug; 5. Traction mechanism; 501. Fixed seat; 502. Wind wheel; 503. Traction rope; 6. Connecting plate; 7. Drive mechanism; 8. Rotating component; 801. Connecting hole; 802. Connecting lug; 803. Steering wheel. Detailed Implementation

[0030] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0031] This application provides a lifting-type water hammer rapid opening and closing device, which can solve the technical problems existing in the prior art where traditional sea valves use a spiral opening and closing mechanism, which has high opening and closing pressure, occupies the position of the flow channel, and at the same time, water hammer is prone to occur when the fluid flow rate or channel volume changes rapidly during rapid opening and closing, causing damage to pipeline systems and equipment.

[0032] The lifting-type water hammer quick-opening and closing device of this application includes a flow component and a pressure-balancing component. The flow component serves as the channel for water flow in and out and is designed with a vertical cover. Compared with the traditional threaded cover, it does not occupy the flow channel space. The pressure-balancing component is set on the flow component and can form another flow channel. When the valve is opened and closed, the pressure-balancing component can adjust the connection state of its own flow channel according to the inlet and outlet requirements of the flow component. This not only balances the internal and external pressure of the flow component and prevents water hammer, but also reduces the valve opening and closing resistance, driving power, and opening and closing time.

[0033] Specifically, Figure 1 This application provides a schematic diagram of a quick-opening and closing device for a lifting type waterproof hammer, as shown in the embodiments below. Figure 1 As shown, the flow assembly includes a main channel 1 and a cover plate 2 located at the outlet end of the main channel 1 and movable toward the main channel 1 to cover the main channel 1. The cover plate 2 is provided with an auxiliary drainage hole 3, and the inner diameter of the auxiliary drainage hole 3 gradually increases toward the direction away from the main channel 1.

[0034] The cover plate 2 and the main channel 1 are designed separately. When the water flow is interrupted, the cover plate 2 covers the outlet end of the main channel 1. When in operation, the cover plate 2 can be longitudinally displaced in the direction closer to or further away from the main channel 1 according to the cooling water inlet and outlet requirements, so as to realize the control of the cooling water flow inside and outside the control chamber. The inner diameter of the auxiliary drain hole 3 is larger at the top and smaller at the bottom, and is in the shape of a cone, so as to cooperate with the pressure balancing component to form another flow channel for balancing the pressure inside and outside the main channel 1.

[0035] Furthermore, the pressure balancing assembly includes a plunger mechanism 4 located within the auxiliary drain hole 3 and a traction mechanism 5 located on the main channel 1 and connected to the plunger mechanism 4 for longitudinal displacement of the plunger mechanism 4 within the auxiliary drain hole 3 by adjusting its own length. The traction mechanism 5 has a certain length, with one end fixed to the main channel 1 and the other end connected to the plunger mechanism 4. The traction mechanism 5 is spatially positioned above the plunger mechanism 4. Therefore, changes in the length of the traction mechanism 5 will cause changes in the position of the plunger mechanism 4. In one possible embodiment, the traction mechanism 5 is configured to rotate. When the traction mechanism 5 rotates in different directions, its length will also change accordingly, thereby causing the plunger mechanism 4 to rise or fall within the auxiliary drain hole 3.

[0036] Furthermore, Figure 2 This is a schematic diagram of the plug mechanism 4 in a lifting-type waterproof hammer quick-opening and closing device provided in an embodiment of this application, as shown below. Figure 2 As shown, the plug mechanism 4 includes an upper support plate 401 that protrudes from the auxiliary drain hole 3 to connect with the traction mechanism 5 and a drain plug 402 located below the upper support plate 401 and having the same shape as the auxiliary drain hole 3 to be embedded in the auxiliary drain hole 3. The upper support plate 401 is provided with a plurality of diversion channels that communicate with the auxiliary drain hole 3.

[0037] Based on the above description, the auxiliary drain hole 3 is conical, and the drain plug 402 is embedded in the auxiliary drain hole 3 and is also conical. The upper support plate 401 protrudes from the auxiliary drain hole 3, and the diameter of the upper support plate 401 is larger than that of the auxiliary drain hole 3, which can limit the position of the drain plug 402. That is to say, in this structure, the highest position that the drain plug 402 can move to is where it is completely in contact with the auxiliary drain hole 3. At this time, the auxiliary drain hole 3 is blocked by the drain plug 402, and the cooling water cannot flow. The lowest position that the drain plug 402 can move to is where the bottom surface of the upper support plate 401 contacts the inner surface of the cover plate 2. At this time, the drain plug 402 and the auxiliary drain hole 3 are spaced apart, and the auxiliary drain hole 3 is in a flow state. At the same time, the upper support plate 401 has several diversion channels that communicate with the auxiliary drain hole 3. Therefore, when the drain plug 402 is moved to the lowest position, the main channel 1 is in a flow state with the outside. In one possible embodiment, in order to improve the sealing performance, several sealing strips are also provided on the outer periphery of the drain plug 402.

[0038] The lifting-type water hammer quick-opening and closing device in this application adopts a lifting-type opening and closing method and uses a linear stroke method to open and close the device. Compared with the traditional spiral opening and closing, it can reduce the space occupied by the flow channel. At the same time, the cooperation between the auxiliary drain hole 3 and the pressure balancing component can balance the internal and external pressure according to the flow direction and pressure of the cooling water, which not only reduces the driving power and opening and closing time, but also prevents the occurrence of water hammer.

[0039] Furthermore, Figure 3 This application provides a schematic diagram of the flow component structure in a lifting-type waterproof hammer quick-opening and closing device, as shown in the embodiment of the present application. Figure 3 As shown, a connecting plate 6 is provided on the outer periphery of the bottom of the main channel 1, and several drive mechanisms 7 are provided on the connecting plate 6 at intervals along the circumference of the main channel 1. In one possible embodiment, the connecting plate 6 is a circular plate, and the main channel 1 passes through the center of the circular plate and forms an integral part with the circular plate to facilitate connection with the cover plate 2. The closing state of the main channel 1 and the cover plate 2 is achieved by the extension and retraction of the drive mechanisms 7. To ensure the uniformity of force on the cover plate 2, in one possible embodiment, the number of drive mechanisms 7 is four sets, and the four sets of drive mechanisms 7 are symmetrically arranged radially along the main channel 1. There can be multiple types of drive mechanisms 7. Considering the application scenario in this application, pushing the cover plate 2 requires a large amount of power. Therefore, in this application, the drive mechanism 7 is preferably hydraulically driven.

[0040] Further details can be found here. Figure 3 The cover plate 2 includes a mating plate 201 for matching with the connecting plate 6 and a recessed portion 202 located in the middle of the mating plate 201 to mate with the main channel 1. The auxiliary drainage hole 3 is located at the center of the recessed portion 202. Similarly, the mating plate 201 is also a circular plate. The recessed portion 202 is located at the center of the circular plate and the inner diameter of the recessed portion 202 is equal to the inner diameter of the main channel 1 and is opposite to the position of the main channel 1. The cross-sectional area of ​​the mating plate 201 is not greater than the cross-sectional area of ​​the connecting plate 6. When the assembly is completed, the fixed end of the drive mechanism 7 is fixedly set above the connecting plate 6, and the telescopic end of the drive mechanism 7 passes through the connecting plate 6 and connects to the mating plate 201. The cover plate 2 is closed or separated by the telescopic action of the drive mechanism 7.

[0041] Furthermore, in conjunction with the above description, the traction mechanism 5 pulls the plunger mechanism 4 in a rotating manner. When the main channel 1 needs to be closed, the cover plate 2 gradually approaches the main channel 1, and the cooling water in the main channel 1 is squeezed and begins to flow out from the outlet end of the main channel 1. At this time, the plunger mechanism 4 is flushed by the cooling water and descends, and the auxiliary drain hole 3 opens, preventing water hammer caused by a sharp increase in internal pressure due to the compression of the main channel volume caused by the movement of the cover plate 2. As the cover plate 2 completely covers the main channel 1, the traction mechanism 5 begins to rotate, and the length of the traction mechanism 5 shortens, thereby pulling up the plunger mechanism 4 and achieving a seal on the main channel 1.

[0042] When the main channel 1 needs to be opened, in order to reduce drive power and opening / closing time, the internal and external pressures of the main channel 1 need to be balanced. In this scenario, the cooling water will not generate scouring force. Therefore, in order to ensure that the plunger mechanism 4 can still float freely up and down in the absence of cooling water scouring, in this application, the number of traction mechanisms 5 is two. Figure 4 A schematic diagram of the pressure balancing component structure in a lifting-type waterproof hammer quick-opening and closing device provided in an embodiment of this application is shown below. Figure 4 As shown, two traction mechanisms 5 are radially symmetrically arranged on the connecting plate 6 along the main channel 1, and the traction directions of the two traction mechanisms 5 are opposite, so as to pull the plug mechanism 4 longitudinally in opposite directions within the auxiliary drainage hole 3 respectively. One traction mechanism 5 is used to pull up the plug mechanism 4, and the other traction mechanism 5 is used to pull down the plug mechanism 4.

[0043] For details, see Figure 4 The traction mechanism 5 includes a fixed base 501 and a wind turbine 502 rotatably mounted on the fixed base 501. The wind turbine 502 is provided with a traction rope 503 for connecting to the upper support plate 401. One end of the traction rope 503 is connected to the wind turbine 502, and the other end is connected to the upper support plate 401. In one possible embodiment, the top of the upper support plate 401 is provided with a connecting end for the traction rope 503 to pass through. When the wind turbine 502 rotates in different directions, the length of the traction rope 503 will increase or decrease accordingly. In one possible embodiment, the traction mechanism 5 is electrically connected to the drive mechanism 7. When the drive mechanism 7 extends or retracts to its position, it controls the traction mechanism 5 to perform the corresponding rotation action.

[0044] Furthermore, a rotatable member 8, one end of which is rotatably connected to the inner wall of the cover plate 2, is also provided between the traction rope 503 and the upper support plate 401. Figure 5 A detailed enlarged view of the force-transferring component 8 in a lifting-type waterproof hammer quick-opening and closing device provided in the embodiments of this application, as shown in the following figure. Figure 5 As shown, in conjunction with the above description, the traction mechanism 5 is located on the connecting plate 6, and the plunger mechanism 4 is located at the center of the cover plate 2. The traction mechanism 5 and the plunger mechanism 4 are inclined relative to each other in space. Therefore, the setting of the force-converting component 8 is mainly used to convert the inclined pulling force of the traction mechanism 5 into longitudinal pulling force, so as to facilitate the longitudinal displacement of the plunger mechanism 4 in the auxiliary drainage hole 3.

[0045] Specifically, the end of the rotating component 8 away from the cover plate 2 is provided with two spaced connecting holes 801 for connecting the traction ropes 503 in the two traction mechanisms 5 respectively. The rotating component 8 is also provided with connecting ears 802 for rotatably connecting the upper support plate 401. The rotating component 8 is located on one side of the plug mechanism 4. The rotating component 8 is a plate-shaped structure. The inner surface of the cover plate 2 is provided with a rotating shaft for rotatably connecting the rotating component 8. The other end of the rotating component 8 is provided with two connecting holes 801 for connecting the two traction ropes 503 respectively. The two connecting holes 801 are spaced apart along the width direction of the rotating component 8. When assembled, the rotating component 8 is tilted and the two connecting holes 801 are arranged vertically in the tilt position. When any traction rope 503 is shortened, it will drive the rotating component 8 to rotate around the rotating shaft on the inner surface of the cover plate 2. The plug mechanism 4 and the rotating component 8 are rotatably connected through the connecting ears 802, so that the plug mechanism 4 is always in a vertical state, so as to ensure that the plug mechanism 4 moves up and down with the movement of the rotating component 8.

[0046] Further details can be found here. Figure 5 The cover plate 2 is also provided with a steering wheel 803, which is located on the side of the plunger mechanism 4 away from the rotating member 8, so that one of the traction ropes 503 can pass through. In conjunction with the above description, one traction mechanism 5 is used to pull up the plunger mechanism 4, and the other traction mechanism 5 is used to pull down the plunger mechanism 4. Therefore, the steering wheel 803 is connected to the traction mechanism 5 used to pull down the plunger mechanism 4. The traction rope 503 of the traction mechanism 5 passes through the bottom of the steering wheel 803 and is connected to one of the connecting holes 801 on the rotating member 8, so as to convert the upward pulling force of the traction mechanism 5 into a downward pulling force, so as to pull one end of the rotating member 8 down and drive the plunger mechanism 4 to move down.

[0047] Furthermore, Figure 6 A top view of the upper support plate 401 in a lifting-type waterproof hammer quick-opening and closing device provided in an embodiment of this application is shown below. Figure 6 The upper support plate 401 has multiple horizontally extending support points 4011 on its outer circumference. The extended ends of the support points 4011 are bent toward the drain plug 402 and abut against the inner surface of the cover plate 2. A flow channel is formed between two adjacent support points 4011. In a frontal view, the support points 4011 are inverted L-shaped to form a flow channel between two support points 4011.

[0048] The working mechanism of the lifting waterproof hammer quick-opening and closing device in this application is as follows: Figure 7 This is a schematic diagram of the water flow when the main channel 1 of a lifting-type waterproof hammer quick-opening and closing device is opened, as provided in an embodiment of this application. Figure 7As shown, when the main channel 1 needs to be opened, one of the traction mechanisms 5 passing through the steering wheel 803 rotates, the traction rope 503 in the traction mechanism 5 shortens, the plunger mechanism 4 moves down to open the auxiliary drain hole 3, the external fluid enters the main channel 1 through the auxiliary drain hole 3, so as to balance the water pressure inside and outside the main channel 1, reduce the driving power and opening and closing time, and then the drive mechanism 7 extends, so that the cover plate 2 separates from the main channel 1. Figure 8 This is a schematic diagram of the water flow when the main channel 1 of a lifting-type waterproof hammer quick-opening and closing device is closed, as provided in an embodiment of this application. Figure 8 As shown, when the main channel 1 needs to be closed, the traction mechanism 5 does not move temporarily, the drive mechanism 7 retracts, the cover plate 2 gradually approaches the main channel 1, the cooling water in the main channel 1 is squeezed and begins to flow out from the outlet end of the main channel 1. At this time, the plunger mechanism 4 is flushed by the cooling water and descends, and the auxiliary drain hole 3 opens to avoid the main channel volume being compressed due to the movement of the cover plate 2, which would cause the internal pressure of the main channel to rise sharply and generate water hammer. Figure 9 This is a schematic diagram of the main channel 1 in the completed state of the lifting waterproof hammer quick opening and closing device provided in the embodiments of this application, and also a schematic diagram of the self-sealing effect principle, as shown below. Figure 9 As shown, as the cover plate 2 completely covers the main channel 1, the traction mechanism 5, which has not passed through the steering wheel 803, begins to rotate, thereby pulling up the plug mechanism 4 and realizing the self-sealing of the main channel 1.

[0049] The lifting-type water hammer quick opening and closing device in this application drives the cover plate 2 to move linearly up and down through the piston reciprocating motion drive mechanism 7, thereby opening and closing the main channel 1. This results in no turbulent components inside the main channel 1, good flow field uniformity, low flow resistance, low driving power, and shorter opening and closing time. By setting a balancing mechanism, the pressure inside and outside the main channel 1 is balanced, reducing opening and closing resistance and preventing water hammer. At the same time, when the main channel 1 is closed, it can also achieve self-sealing using external medium pressure, resulting in high sealing reliability.

[0050] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0051] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0052] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A lifting-type waterproof hammer quick-opening and closing device, characterized in that, include: The flow assembly includes a main channel (1) and a cover plate (2) located at the outlet end of the main channel (1) and movable toward the main channel (1) to cover the main channel (1). The cover plate (2) is provided with an auxiliary drainage hole (3), and the inner diameter of the auxiliary drainage hole (3) gradually increases toward the direction away from the main channel (1). The pressure balancing assembly includes a plunger mechanism (4) located in the auxiliary drain hole (3) and a traction mechanism (5) located on the main channel (1) and connected to the plunger mechanism (4) for adjusting its own length to move the plunger mechanism (4) longitudinally within the auxiliary drain hole (3). The plunger mechanism (4) includes an upper support plate (401) protruding from the auxiliary drain hole (3) and connected to the traction mechanism (5) and a drain plug (402) located below the upper support plate (401) and having the same shape as the auxiliary drain hole (3) to be embedded in the auxiliary drain hole (3). The upper support plate (401) is provided with a plurality of branch channels communicating with the auxiliary drain hole (3). Among them, there are two traction mechanisms (5), and the two traction mechanisms (5) are radially symmetrically arranged on the connecting plate (6) along the main channel (1), and the traction directions of the two traction mechanisms (5) are opposite to each other so as to pull the plunger mechanism (4) to move longitudinally in opposite directions within the auxiliary drainage hole (3); The traction mechanism (5) includes a fixed seat (501) and a windmill wheel (502) rotatably mounted on the fixed seat (501), and the windmill wheel (502) is provided with a traction rope (503) for connecting the upper support plate (401).

2. The lifting-type waterproof hammer quick-opening and closing device as described in claim 1, characterized in that, The main channel (1) has a connecting plate (6) on its bottom outer periphery, and the connecting plate (6) has a plurality of driving mechanisms (7) arranged at intervals along the circumference of the main channel (1).

3. The lifting-type waterproof hammer quick-opening and closing device as described in claim 2, characterized in that, The cover plate (2) includes a mating plate (201) for matching with the connecting plate (6) and a recess (202) located in the middle of the mating plate (201) to mate with the main channel (1), and the auxiliary drainage hole (3) is located at the center of the recess (202).

4. The lifting-type waterproof hammer quick-opening and closing device as described in claim 3, characterized in that, The fixed end of the drive mechanism (7) is fixedly disposed above the connecting plate (6), and the telescopic end of the drive mechanism (7) passes through the connecting plate (6) and is connected to the mating plate (201).

5. The lifting-type waterproof hammer quick-opening and closing device as described in claim 1, characterized in that, Between the traction rope (503) and the upper support plate (401), there is also a rotating member (8) whose one end is rotatably connected to the inner wall of the cover plate (2).

6. The lifting-type waterproof hammer quick-opening and closing device as described in claim 5, characterized in that, The rotating member (8) has two spaced connecting holes (801) at one end away from the cover plate (2) for connecting the traction ropes (503) in the two traction mechanisms (5) respectively. The rotating member (8) also has connecting ears (802) for rotatably connecting the upper support plate (401).

7. The lifting-type waterproof hammer quick-opening and closing device as described in claim 6, characterized in that, The cover plate (2) is also provided with a steering wheel (803), which is located on the side of the plunger mechanism (4) away from the rotating member (8) for one of the traction ropes (503) to pass through.

8. The lifting-type waterproof hammer quick-opening and closing device as described in claim 1, characterized in that, The upper support plate (401) has multiple horizontally extending support points (4011) on its outer circumference, and the extended ends of the support points (4011) are bent toward the drain plug (402) and abut against the inner surface of the cover plate (2), forming a flow channel between two adjacent support points (4011).

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