Lifting type waterproof hammer quick opening and closing device

Abstract

The invention discloses a lifting type waterproof hammer rapid opening and closing device, and relates to the technical field of flow control, the lifting type waterproof hammer rapid opening and closing device comprises a flowing assembly and a pressure balancing assembly, the flowing assembly comprises a main channel and a cover plate which is located at the outflow end of the main channel and can move towards the main channel, and an auxiliary drainage hole is formed in the cover plate; the pressure balancing assembly comprises a plunger mechanism located in the auxiliary drainage hole and a traction mechanism which is located on the main channel, connected with the plunger mechanism and used for pulling the plunger mechanism to longitudinally move in the auxiliary drainage hole by adjusting the length of the traction mechanism. The plunger mechanism comprises an upper supporting plate of a flow channel connected with the traction mechanism and a drainage plug located below the upper supporting plate and embedded in the auxiliary drainage hole, and the upper supporting plate is provided with a flow dividing flow channel communicated with the auxiliary drainage hole. The linear covering cover plate is adopted, the opening and closing time of the main channel can be shortened, the balance pressure assembly is matched, the internal and external pressure of the main channel can be adjusted according to the covering requirement of the main channel, and the water hammer phenomenon is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of flow control, in particular to a lifting type anti-hammer quick opening and closing device. Background Art

[0002] Vessels, offshore platforms, and submersibles are equipped with sea valves to control the flow of cooling water inside and outside the vessel. In the event of an incident such as a breach in the internal cooling water pressure barrier, these valves can quickly and reliably cut off the connection to the external cooling water, preventing further damage.

[0003] Traditional sea valves include butterfly valves and tongue valves. On the one hand, the disc structure occupies part of the flow channel, causing severe disturbances to the internal flow and increasing flow resistance. On the other hand, these valves are opened and closed by rotating the disc, resulting in a long operating time. For large diameters and high pressure differentials, the opening and closing torque is large, requiring high drive power. This requires the use of high-power motors or the conversion of hydraulic drive force into rotational torque through a worm gear structure, resulting in a larger drive mechanism. Furthermore, due to the inertia and compressibility of the fluid, water hammer can easily occur in extreme situations, such as when pumps are started and stopped or valves are opened and closed rapidly, when the fluid flow rate or channel volume changes dramatically, causing damage to the piping system and equipment. Summary of the Invention

[0004] The present application provides a lifting type anti-water hammer rapid opening and closing device, which can solve the technical problems in the prior art that traditional sea valves use spiral opening and closing, the opening and closing pressure is large, and the position of the flow channel is occupied. At the same time, during the rapid opening and closing process, when the fluid flow rate or channel volume changes sharply, water hammer phenomenon is likely to occur, causing damage to the pipeline system and equipment.

[0005] The present invention provides a lifting type waterproof hammer rapid opening and closing device, comprising: A flow assembly comprising a main channel and a cover plate located at an outflow end of the main channel and movable toward the main channel to cover the main channel, wherein the cover plate is provided with an auxiliary drainage hole, and the inner diameter of the auxiliary drainage hole gradually increases in a direction away from the main channel; A pressure-balancing assembly, the pressure-balancing assembly including a plug mechanism located in the auxiliary drain hole and a traction mechanism located on the main channel and connected to the plug mechanism, for pulling the plug mechanism for longitudinal displacement in the auxiliary drain hole by adjusting its own length. The plug mechanism includes an upper support plate of a flow channel protruding from the auxiliary drain hole to be connected to the traction mechanism, and a drain plug located below the upper support plate and consistent in shape with the auxiliary drain hole to be embedded in the auxiliary drain hole. The upper support plate is provided with a plurality of diversion flow channels connected to the auxiliary drain hole.

[0006] In one embodiment, a connecting plate is provided on the outer periphery of the bottom of the main channel, and a plurality of driving mechanisms are provided on the connecting plate and spaced apart along the circumference of the main channel.

[0007] In one embodiment, the cover plate includes a matching plate for matching with the connecting plate and a recessed portion located in the middle of the matching plate to match with the main channel, and the auxiliary drainage hole is located at the center of the recessed portion.

[0008] In one embodiment, the fixed end of the driving mechanism is fixedly disposed above the connecting plate, and the telescopic end of the driving mechanism passes through the connecting plate and is connected to the matching plate.

[0009] In one embodiment, there are two traction mechanisms, which are radially symmetrically arranged on the connecting plate along the main channel, and the traction directions of the two traction mechanisms are opposite so as to respectively pull the plug mechanism to longitudinally displace in opposite directions in the auxiliary drainage hole.

[0010] In one embodiment, the traction mechanism includes a fixed seat and a windmill wheel rotatably mounted on the fixed seat, and the windmill wheel is provided with a traction rope for connecting to the upper support plate.

[0011] In one embodiment, a turning 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.

[0012] In one embodiment, the turning member is provided with two spaced apart connection holes at one end away from the cover plate for respectively connecting the traction ropes in the two traction mechanisms, and the turning member is also provided with a connection ear for rotatably connecting to the upper support plate.

[0013] In one embodiment, a steering wheel is further provided on the cover plate. The steering wheel is located on a side of the plunger mechanism away from the turning member, so as to allow one of the traction ropes to pass through.

[0014] In one embodiment, a plurality of horizontally extending support points are provided on the outer circumference of the upper support plate, 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 two adjacent support points.

[0015] The beneficial effects of the technical solutions provided in the embodiments of the present application include: The lifting type anti-water hammer quick opening and closing device in the present application drives the cover plate to move up and down in a straight line through the reciprocating motion of the piston driving mechanism to realize the opening and closing of the main channel, so that there are no disturbing components inside the main channel, the flow field is uniform, the flow resistance is small, the driving power is small, and the opening and closing time is shorter. By setting a plug mechanism, it is used to balance the pressure inside and outside the main channel, reduce the opening and closing resistance, and avoid water hammer. At the same time, when the main channel is closed, it can also use the pressure difference between the internal and external media to achieve self-sealing, and the sealing reliability is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 A schematic structural diagram of a lifting type anti-water hammer quick opening and closing device provided in an embodiment of the present application; Figure 2 A schematic diagram of the structure of a plug mechanism in a lifting type anti-water hammer rapid opening and closing device provided in an embodiment of the present application; Figure 3 A schematic diagram of the structure of a flow component in a lifting type anti-water hammer rapid opening and closing device provided in an embodiment of the present application; Figure 4 A schematic structural diagram of a pressure-balancing component in a lifting type anti-water hammer rapid opening and closing device provided in an embodiment of the present application; Figure 5 An enlarged view of the details of the transfer member in a lifting type anti-water hammer quick opening and closing device provided in an embodiment of the present application; Figure 6 A top view of the upper support plate in a lifting type anti-water hammer quick opening and closing device provided in an embodiment of the present application; Figure 7 A schematic diagram of water flow when the main channel is opened in a lifting type anti-water hammer quick opening and closing device provided in an embodiment of the present application; Figure 8 A schematic diagram of water flow when the main channel is closed in a lifting type anti-water hammer quick opening and closing device provided in an embodiment of the present application; Figure 9 This is a schematic diagram of the main channel covering completion state in a lifting type anti-water hammer rapid opening and closing device provided in an embodiment of the present application.

[0018] In the figure: 1. Main channel; 2. Cover plate; 201. Matching plate; 202. Lower recess; 3. Auxiliary drainage hole; 4. Plug mechanism; 401. Upper support plate; 4011. Support point; 402. Drain plug; 5. Traction mechanism; 501. Fixed seat; 502. Windmill wheel; 503. Traction rope; 6. Connecting plate; 7. Driving mechanism; 8. Turning member; 801. Connecting hole; 802. Connecting ear; 803. Steering wheel. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0020] The embodiment of the present application provides a lifting type anti-water hammer rapid opening and closing device, which can solve the technical problems existing in the prior art that the traditional sea valve uses a spiral opening and closing method, has a high opening and closing pressure, occupies the position of the flow channel, and is prone to water hammer when the fluid flow rate or channel volume changes sharply during the rapid opening and closing process, causing damage to the pipeline system and equipment.

[0021] The lifting type anti-water hammer rapid opening and closing device in the present application includes a flow component and a pressure-balancing component. The flow component serves as a channel for water to flow in and out. It is arranged in a vertical cover type. Compared with the traditional threaded cover, it does not occupy the flow channel space. The pressure-balancing component is arranged on the flow component and can form another flow channel. When the valve is opened and closed, the pressure-balancing component can adjust the connectivity of its own flow channel according to the inlet and outlet requirements of the flow component. It can not only balance the internal and external pressures of the flow component and prevent the occurrence of water hammer, but also reduce the valve opening and closing resistance, reduce the driving power and opening and closing time.

[0022] Specifically, Figure 1 A schematic diagram of the structure of a lifting type waterproof hammer quick opening and closing device provided in an embodiment of the present application is shown as follows: Figure 1 As shown, the flow component includes a main channel 1 and a cover plate 2 located at the outflow end of the main channel 1 and capable of being displaced toward the main channel 1 to cover the main channel 1. An auxiliary drainage hole 3 is provided on the cover plate 2, and the inner diameter of the auxiliary drainage hole 3 gradually increases in the direction away from the main channel 1.

[0023] The cover plate 2 is designed to be separated from the main channel 1. When the water flow is disconnected, the cover plate 2 covers the outflow end of the main channel 1. In the working state, the cover plate 2 can be longitudinally displaced toward or away from the main channel 1 according to the inflow and outflow needs of the cooling water, so as to realize the on-off control of the cooling water inside and outside the control cabin. The inner diameter of the auxiliary drain hole 3 is larger at the top and smaller at the bottom, forming a cone shape, which is used to cooperate with the pressure balance component to form another flow channel for balancing the pressure inside and outside the main channel 1.

[0024] Furthermore, the pressure balance assembly includes a plug mechanism 4 located in the auxiliary drainage hole 3 and a traction mechanism 5 located on the main channel 1 and connected to the plug mechanism 4, so as to pull the plug mechanism 4 to longitudinally displace in the auxiliary drainage hole 3 by adjusting its own length. The traction mechanism 5 has a certain length, one end of which is fixed on the main channel 1, and the other end is connected to the plug mechanism 4. The spatial position of the traction mechanism 5 is located above the plug mechanism 4. Therefore, the length change of the traction mechanism 5 will drive the position change of the plug mechanism 4. In a possible embodiment, the traction mechanism 5 is configured to be rotatable. When the traction mechanism 5 rotates in different directions, its length will also change accordingly, thereby pulling the plug mechanism 4 to rise or fall in the auxiliary drainage hole 3.

[0025] Further, Figure 2 This is a structural diagram of the plug mechanism 4 in a lifting type waterproof hammer fast opening and closing device provided in an embodiment of the present application, as shown in FIG. Figure 2 As shown, the plug mechanism 4 includes an upper support plate 401 that protrudes from the auxiliary drainage hole 3 to connect to the flow channel of the traction mechanism 5, and a drainage plug 402 that is located below the upper support plate 401 and has the same shape as the auxiliary drainage hole 3 and is embedded in the auxiliary drainage hole 3. The upper support plate 401 is provided with a number of diversion flow channels that are connected to the auxiliary drainage hole 3.

[0026] When the drain plug 402 is displaced to the lowermost position, the drain plug 402 is in contact with the auxiliary drain hole 3, and the drain plug 402 is in contact with the auxiliary drain hole 3.

[0027] The lifting type anti-water hammer rapid opening and closing device in the present application adopts a lifting type opening and closing method, and adopts a straight stroke method to realize the opening and closing of 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 drainage hole 3 and the pressure-balancing component can balance the internal and external pressures 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.

[0028] Further, Figure 3 This is a schematic diagram of the flow component structure in a lifting type waterproof hammer fast opening and closing device provided in an embodiment of the present application, as shown in FIG. Figure 3 As shown, a connecting plate 6 is provided on the outer periphery of the bottom of the main channel 1, and a plurality of 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 covering state of the main channel 1 and the cover plate 2 is achieved by the telescopic operation of the drive mechanism 7. To ensure uniform force on the cover plate 2, in one possible embodiment, the number of the drive mechanisms 7 is four, and the four groups of drive mechanisms 7 are radially symmetrically arranged along the main channel 1. There can be multiple types of drive mechanisms 7. In combination with 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.

[0029] For further information, see Figure 3 The cover plate 2 includes a matching plate 201 for matching with the connecting plate 6 and a recessed portion 202 located in the middle of the matching plate 201 to match with the main channel 1. The auxiliary drainage hole 3 is located at the center of the recessed portion 202. Similarly, the matching 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 main channel 1. The cross-sectional area of ​​the matching plate 201 is not larger than the cross-sectional area of ​​the connecting plate 6. When the assembly is completed, the fixed end of the driving mechanism 7 is fixedly arranged above the connecting plate 6, and the telescopic end of the driving mechanism 7 passes through the connecting plate 6 and is connected to the matching plate 201. The covering or separation of the cover plate 2 is realized by the telescopic action of the driving mechanism 7.

[0030] Furthermore, in conjunction with the above description, the traction mechanism 5 rotates to pull the plunger mechanism 4. When the main channel 1 needs to be closed, the cover plate 2 gradually approaches the main channel 1, squeezing the cooling water within the main channel 1 and causing it to flow out of the outlet of the main channel 1. At this time, the plunger mechanism 4 is flushed by the cooling water and descends, opening the auxiliary drain hole 3. This prevents the movement of the cover plate 2 from compressing the main channel volume, which would cause a sharp increase in internal pressure in the main channel and generate water hammer. As the cover plate 2 completely covers the main channel 1, the traction mechanism 5 begins to rotate, shortening its length, thereby pulling up the plunger mechanism 4 and sealing the main channel 1.

[0031] When the main channel 1 needs to be opened, in order to reduce the driving power and the opening and closing time, it is necessary to balance the internal and external pressures of the main channel 1. In this scenario, the cooling water will not generate a flushing force. Therefore, in order to achieve a scenario without cooling water flushing, the plug mechanism 4 can still float up and down freely. In this application, the number of traction mechanisms 5 is two. Figure 4 This is a schematic diagram of the structure of the pressure balance component in a lifting type waterproof hammer fast opening and closing device provided in an embodiment of the present application, as shown in FIG. Figure 4 As shown, 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, so as to respectively pull the plug mechanism 4 to longitudinally displace in opposite directions in the auxiliary drainage hole 3, wherein 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.

[0032] For details, see Figure 4 The traction mechanism 5 includes a fixed seat 501 and a windmill wheel 502 rotatably arranged on the fixed seat 501, and the windmill wheel 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 windmill wheel 502, and the other end is connected to the upper support plate 401. In a possible embodiment, a connecting end is provided on the top of the upper support plate 401 for the traction rope 503 to pass through. When the windmill wheel 502 rotates in different directions, the length of the traction rope 503 will also increase or shorten accordingly. In a possible embodiment, the traction mechanism 5 is electrically connected to the driving mechanism 7. When the driving mechanism 7 is retracted into place, the traction mechanism 5 is controlled to perform the corresponding rotation action.

[0033] Furthermore, a turning member 8 is provided between the traction rope 503 and the upper support plate 401, one end of which is rotatably connected to the inner wall of the cover plate 2. Figure 5 This is an enlarged view of the details of the transfer member 8 in a lifting type waterproof hammer fast opening and closing device provided in an embodiment of the present application, as shown in FIG. Figure 5 As shown, combined with the above description, the traction mechanism 5 is located on the connecting plate 6, the plug mechanism 4 is located at the center of the cover plate 2, and the traction mechanism 5 and the plug mechanism 4 are tilted relative to each other in space. Therefore, the setting of the turning member 8 is mainly used to convert the inclined pulling force of the traction mechanism 5 into a longitudinal pulling force to facilitate the longitudinal displacement of the plug mechanism 4 in the auxiliary drainage hole 3.

[0034] The two connecting holes 801 are arranged at intervals along the width direction of the rotating member 8. When the assembly is completed, the rotating member 8 is tilted, and the two connecting holes 801 are arranged up and down in the tilted direction. When any traction rope 503 is shortened, the rotating member 8 is driven to rotate with the rotating shaft on the inner surface of the cover plate 2 as the center, and the plug mechanism 4 and the rotating member 8 are rotatably connected via the connecting ear 802, so that the plug mechanism 4 is always in a vertical state to ensure that the plug mechanism 4 moves up and down with the movement of the rotating member 8.

[0035] For further information, see Figure 5 A steering wheel 803 is also provided on the cover plate 2. The steering wheel 803 is located on the side of the plug mechanism 4 away from the turning member 8, so that one of the traction ropes 503 can pass through. Combined with the above description, 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. Therefore, the steering wheel 803 is connected to the traction mechanism 5 for pulling down the plug mechanism 4, and 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 turning member 8 to convert the upward pulling force of the traction mechanism 5 into a downward pulling force, so as to pull one end of the turning member 8 down and drive the plug mechanism 4 to move downward.

[0036] Further, Figure 6 This is a top view of the upper support plate 401 in a lifting type waterproof hammer fast opening and closing device provided in an embodiment of the present application, see Figure 6 The outer circumference of the upper support plate 401 is provided with multiple horizontally extending support points 4011, 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 diversion channel between two adjacent support points 4011. When viewed from the front, the support points 4011 are in an inverted L shape to form a flow channel between the two support points 4011.

[0037] The mechanism of action of the lifting anti-hammer quick opening and closing device in this application is as follows: Figure 7 This is a schematic diagram of water flow when the main channel 1 is opened in a lifting type anti-water hammer quick opening and closing device provided by an embodiment of the present application, as shown in FIG. 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, and the plug mechanism 4 moves downward to open the auxiliary drainage hole 3. External fluid enters the main channel 1 through the auxiliary drainage hole 3 to balance the internal and external water pressures of the main channel 1, reducing the driving power and opening and closing time. Then, the driving mechanism 7 extends, so that the cover plate 2 is separated from the main channel 1; Figure 8 This is a schematic diagram of water flow when the main channel 1 is closed in a lifting type anti-water hammer quick opening and closing device provided by an embodiment of the present application, as shown in FIG. Figure 8 As shown, when the main channel 1 needs to be closed, the traction mechanism 5 does not move temporarily, the driving mechanism 7 is retracted, and 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 outflow end of the main channel 1. At this time, the plug mechanism 4 is flushed by the cooling water and descends, and the auxiliary drainage hole 3 is opened to avoid the cover plate 2 moving to compress the main channel volume, resulting in a sharp increase in the internal pressure of the main channel and the generation of water hammer. Figure 9 This is a schematic diagram of the main channel 1 in the closed state of a lifting waterproof hammer quick opening and closing device provided in an embodiment of the present application, and is also a schematic diagram of the self-sealing effect principle, as shown in FIG. Figure 9 As shown, as the cover plate 2 completely covers the main channel 1 , the traction mechanism 5 that does not pass through the steering wheel 803 begins to rotate, thereby pulling up the plug mechanism 4 to achieve self-sealing of the main channel 1 .

[0038] The lifting type anti-water hammer quick opening and closing device in the present application drives the cover plate 2 to move up and down in a straight line through the reciprocating motion of the piston driving mechanism 7 to realize the opening and closing of the main channel 1, so that there are no disturbing components inside the main channel 1, the flow field is uniform, the flow resistance is small, the driving power is small, and the opening and closing time is shorter. By setting up a balancing mechanism, it is used to balance the internal and external pressures of the main channel 1, reduce the opening and closing resistance, and avoid water hammer. At the same time, when the main channel 1 is closed, it can also use the external medium pressure to achieve self-sealing, and the sealing reliability is high.

[0039] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships 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, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0040] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0041] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present 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 the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A lifting type waterproof hammer quick opening and closing device, characterized in that: include: A flow assembly, comprising a main channel (1) and a cover plate (2) located at an outflow end of the main channel (1) and displaceable toward the main channel (1) to cover the main channel (1), wherein the cover plate (2) is provided with an auxiliary drainage hole (3), and the inner diameter of the auxiliary drainage hole (3) gradually increases in a direction away from the main channel (1); A pressure balancing assembly, the pressure balancing assembly comprising a plug mechanism (4) located in the auxiliary drainage hole (3) and a traction mechanism (5) located on the main channel (1) and connected to the plug mechanism (4) for pulling the plug mechanism (4) to longitudinally displace in the auxiliary drainage hole (3) by adjusting its own length, the plug mechanism (4) comprising an upper support plate (401) protruding from the auxiliary drainage hole (3) to form a flow channel connected to the traction mechanism (5) and a drainage plug (402) located below the upper support plate (401) and having the same shape as the auxiliary drainage hole (3) so as to be embedded in the auxiliary drainage hole (3), the upper support plate (401) being provided with a plurality of diversion flow channels communicating with the auxiliary drainage hole (3).

2. A lifting type waterproof hammer quick opening and closing device according to claim 1, characterized in that: A connecting plate (6) is provided on the outer periphery of the bottom of the main channel (1), and a plurality of driving mechanisms (7) are provided on the connecting plate (6) and are arranged at intervals along the circumference of the main channel (1).

3. A lifting type waterproof hammer quick opening and closing device according to claim 2, characterized in that: The cover plate (2) comprises a matching plate (201) for matching with the connecting plate (6) and a recessed portion (202) located in the middle of the matching plate (201) for matching with the main channel (1), and the auxiliary drainage hole (3) is located at the center of the recessed portion (202).

4. A lifting type waterproof hammer-proof quick opening and closing device according to claim 3, characterized in that: The fixed end of the driving mechanism (7) is fixedly arranged above the connecting plate (6), and the telescopic end of the driving mechanism (7) passes through the connecting plate (6) and is connected to the matching plate (201).

5. A lifting type waterproof hammer-proof quick opening and closing device according to claim 2, characterized in that: There are two traction mechanisms (5), which 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 respectively pull the plug mechanism (4) to longitudinally displace in opposite directions in the auxiliary drainage hole (3).

6. A lifting type waterproof hammer-proof quick opening and closing device according to claim 5, characterized in that: The traction mechanism (5) comprises a fixed seat (501) and a windmill wheel (502) rotatably arranged on the fixed seat (501), and a traction rope (503) for connecting to the upper support plate (401) is provided on the windmill wheel (502).

7. A lifting type waterproof hammer-proof quick opening and closing device according to claim 6, characterized in that: A turning member (8) is further provided between the traction rope (503) and the upper support plate (401), one end of which is rotatably connected to the inner wall of the cover plate (2).

8. A lifting type waterproof hammer quick opening and closing device according to claim 7, characterized in that: The end of the turning member (8) away from the cover plate (2) is provided with two spaced-apart connection holes (801) for respectively connecting the traction ropes (503) in the two traction mechanisms (5). The turning member (8) is also provided with a connection ear (802) for rotatably connecting to the upper support plate (401).

9. A lifting type waterproof hammer-proof quick opening and closing device according to claim 8, characterized in that: A steering wheel (803) is also provided on the cover plate (2). The steering wheel (803) is located on a side of the plug mechanism (4) away from the turning member (8) for one of the traction ropes (503) to pass through.

10. The lifting type waterproof hammer quick opening and closing device according to claim 1, characterized in that: The outer circumference of the upper support plate (401) is provided with a plurality of horizontally extending support points (4011), 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 diversion channel between two adjacent support points (4011).

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