A flushable flap valve

Abstract

The application discloses a flushing flap door, which comprises a door frame and a door body, a first locking piece is fixed to the door body, a driver is fixed to the door frame, a connecting rod can move linearly under the driving of the driver, a second locking piece is fixedly connected with the connecting rod and can move linearly under the driving of the connecting rod, the second locking piece has a pre-locking section and a locking section, the included angle between the pre-locking section and the locking section is greater than 180 DEG, the second locking piece is matched with the first locking piece, when the second locking piece is displaced from the pre-locking section to the locking section relative to the first locking piece, the door body can be closed, and when the second locking piece moves out of the locking section relative to the first locking piece in the same direction, the door body can be opened. The connecting rod moves linearly to drive the second locking piece to press the first locking piece, and the problem of poor sealing of the flushing flap door caused by the rotating movement mode under the same specification is avoided. The pre-locking section and the locking section of the second locking piece are matched with the first locking piece, so that the door body can be prevented from being locked out of position and the door body can be quickly opened.

Description

Technical Field

[0001] This application belongs to the field of water flow channel flushing technology, and particularly relates to a flushing flap gate. Background Technology

[0002] Flushing flap gates are mainly used in culverts, box culverts, or regulating reservoirs. They are installed in the middle and upper reaches of water flow channels with drops or at the outlets. They are used to store water and use the stored water to flush the downstream of the water flow channel when the gate is opened quickly.

[0003] In the existing technology, there are two types of flushing flap gates: rotary shaft driven and linkage driven.

[0004] Rotary shaft driven doors typically use a hydraulic or pneumatic cylinder to rotate a rotating shaft connected to a locking hook via a steering mechanism to open and close the door. For example, in patent number 2019220764105, "A Washing Door That Can Be Opened Quickly," the variable-direction drive device 7 pushes the hook shaft 61 to rotate, causing the hook 62 to hook onto or disengage from the hook sleeve 5. This solution belongs to the rotary shaft driven type. When the width of the water flow channel is large, the length of the door leaf 1 is correspondingly longer, the hook shaft 61 is longer, and the number of hooks 62 and hook sleeves 5 increases. In a rotary shaft drive system, the linear motion of the hydraulic or pneumatic cylinder needs to be converted into rotary motion. Therefore, the variable-direction drive device 7 can only be designed on both sides of the door frame 2. Consequently, during the rotation of the hook shaft 61, a phenomenon occurs: the closer the hook 62 is to the variable-direction drive device 7, the larger its rotation angle; conversely, the further away the hook 62 is, the smaller its rotation angle. This phenomenon is more pronounced the longer the hook shaft 61 is, leading to poor sealing and water leakage in the door leaf 1, specifically leakage at the end furthest from the variable-direction drive device 7. This phenomenon is caused by the torsional resistance of the hook shaft 61. One solution is to increase the diameter of the rotary shaft, which increases cost. Over time, the torque will still damage the rotary shaft, reducing its fatigue resistance and affecting its service life. Another solution is to install two sets of variable-direction drive devices on both sides of the door frame 1. This not only increases cost but also complicates the design and control actions, resulting in a higher failure rate. Furthermore, to ensure a locking effect, the hook portion of hook 62 needs to be of a certain length. Within a certain range, the longer the hook portion, the better the locking effect between hook 62 and hook sleeve 5. However, a longer hook portion will lead to a slower unhooking speed, affecting the door opening speed and thus the washing effect. Therefore, it is necessary to increase the power source of the hydraulic cylinder or pneumatic cylinder to increase the movement speed, which relatively increases the cost.

[0005] The connecting rod driving type is usually driven by an oil cylinder or a gas cylinder through a steering mechanism to make the straight reciprocating motion of the connecting rod shaft connected with the hook to open and close the door body. For example, in the patent No. 202021276263.2 "A new flushing door", the hydraulic cylinder 7 is connected with the L-shaped connecting rod 8 through the fork joint 10 to transmit power to the hook connecting rod 17 to drive the hook 18 to hook or release the door plate assembly 2 to realize the functions of water storage and flushing. The hook connecting rod 17 in this scheme is in straight line motion. Compared with the rotating driving type scheme, the connecting rod driving type scheme avoids the poor torsion resistance of the shaft (for example, the hook shaft 61 in 2019220764105 or the hook connecting rod 17 in 202021276263.2) and utilizes the advantage of good tensile effect, solving the problem of poor sealing. However, in the 202021276263.2 scheme, the positions of the hook pin shaft 16 on the hook seat 15, the hook 18, the fixed point of the hook connecting rod 17 through the bolt 19 and the door plate locking adjuster 14 require high precision and the processing difficulty is very great. If the door plate assembly 2 does not fall into place, the dislocation of the hook 18 and the door plate locking adjuster 14 is likely to occur, resulting in the failure of the hook 18 to hook into the door plate locking adjuster 14. In the schematic diagram of the 202021276263.2 scheme Figure 6 , the motion trajectory of the hook 18 and the hanging entrance of the door plate locking adjuster 14 are not at the same point, and are in dislocation in the three-dimensional space, so the locking cannot be completed. SUMMARY

[0006] The present application aims to provide a technical scheme to avoid some defects in the above two schemes. To this end, the present application provides a flushing flap door.

[0007] A flushing flap door, comprising: a door frame having a water outlet; a door body rotatably connected with the door frame for opening or closing the water outlet; a first locking member fixed to the door body; a driver fixed to the door frame for driving a connecting rod; the connecting rod is linearly movable under the driving of the driver; a second locking member fixedly connected with the connecting rod and linearly movable under the driving of the connecting rod, the second locking member has a pre-locking section and a locking section, wherein the included angle between the pre-locking section and the locking section is greater than 180°, the second locking member is adapted with the first locking member, when the second locking member is displaced from the pre-locking section to the locking section relative to the first locking member, the door body can be closed, and when the second locking member moves out of the locking section relative to the first locking member in the same direction, the door body can be opened.

[0008] Preferably, the driver is transversely located on the lower side of the door frame, and the connecting rod is arranged in parallel with the driver.

[0009] Preferably, the connecting rod is fixedly connected with a plurality of second locking members, and the driver is fixedly connected with the second locking members at the end points.

[0010] Preferably, the connecting rods are two, and the two connecting rods are distributed on two sides of the driver.

[0011] Preferably, the second locking member comprises a connecting part and a locking part, the connecting part and the locking part are respectively located at two ends of the second locking member, wherein the connecting part is used for connecting the connecting rod or the driver, and the locking part is used for setting a pre-locking section and a locking section.

[0012] Preferably, the pre-locking section is one of a curved surface or an inclined surface, and the locking section is a flat surface.

[0013] Preferably, the first locking member is a fixed shaft, and the fixed shaft is slidable relative to the second locking member.

[0014] Preferably, the first locking member comprises a fixed shaft and a roller, the roller is externally arranged on the fixed shaft, and the roller is rotatable relative to the second locking member.

[0015] Preferably, the flush flap further comprises a position module, and the position module is used for detecting and controlling the position of the second locking member.

[0016] Preferably, the position module comprises a position sensor and a controller, the position sensor is electrically connected to the controller, the position sensor is used for detecting a signal that the second locking member moves to the locking section, and the controller is used for controlling the driver to stop according to the signal; or the position module comprises a pressure sensor and a controller, the pressure sensor is electrically connected to the controller, the pressure sensor is used for detecting a locking pressure value between the second locking member and the locking section, and the controller is used for controlling the driver to stop when the locking pressure value is greater than or equal to a set pressure value.

[0017] The flush flap provided by the application has at least the following beneficial effects: (1) The connecting rod drives the second locking member to press the first locking member in a straight line, the longer the flush flap is, the longer the connecting rod is, and the better the tensile advantage of the connecting rod is. The defect of the flush flap caused by torsion of the connecting rod in the same specification in a rotary motion mode is avoided. (2) The pre-locking section and the locking section of the second locking member cooperate with the first locking member, which can prevent the door body from being locked out of position and ensure that the door body is quickly opened. (3) The driver is located at the lower end of the door frame, the connecting rod and the driver move in the same direction in a straight line, which reduces the loss of work and reduces the complex conversion mechanism. (4) The double connecting rod design prevents instability of the second locking member during locking. (5) The connecting rod fixes multiple second locking members, the driver is fixedly connected with the second locking member at the end point, the driver drives the end point of the connecting rod and drives the second locking member to move, and the structure utilizes the advantage of the good tensile effect of the connecting rod, so that the diameter of the connecting rod can be relatively thin to save costs. BRIEF DESCRIPTION OF DRAWINGS

[0018] 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 some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the opening structure of the flushing flap gate provided in an embodiment of this application is shown.

[0020] Figure 2 This application illustrates a flushing flap gate provided in an embodiment. Figure 1 A magnified view of a section at point I.

[0021] Figure 3 The diagram shows the structure of the driver, second locking member, and connecting rod of the flushing flap gate provided in the embodiment of this application.

[0022] Figure 4 This paper shows a schematic diagram of the closing structure of the flushing flap door provided in an embodiment of this application.

[0023] Figure 5 The flushing flap gate provided in the embodiment of this application is shown. Figure 4 A magnified view of a section at point III.

[0024] Figure 6 The diagram shown is an isometric view of the drive unit, first locking member, and second locking member of the flushing flap gate provided in the embodiments of this application.

[0025] Figure 7 A schematic diagram of the structure of the first locking member of the flushing flap gate provided in the embodiment of this application moving to the pre-locking section is shown.

[0026] Figure 8 A schematic diagram of the structure of the first locking member of the flushing flap gate provided in this application moving to the pre-locking surface is shown.

[0027] Figure 9 A schematic diagram of the structure of the first locking member of the flushing flap gate provided in this application moving to the fixed surface is shown.

[0028] Figure 10 A schematic diagram of the structure of the first locking member of the flushing flap gate provided in this application embodiment is shown, showing the movement of the first locking member sliding out from the locking section.

[0029] Figure 11 A connection block diagram showing the connection of the controller, pressure sensor and actuator of the flushing flap gate provided in an embodiment of this application is shown.

[0030] Figure 12A connection block diagram of a controller, a pressure sensor and a driver connected to the flush flap is shown.

[0031] Figure 13 A structural schematic diagram of the flush flap is shown.

[0032] The figure marks: 100-flush flap, 110-door frame, 120-door body, 130-first locking piece, 132-fixed shaft, 134-roller, 140-second locking piece, 141a-pre-locking section, 141b-locking section, 142-locking surface, 142a-pre-locking surface, 142b-fixing surface, 143-bottom plate, 144-driving plate, 145-abutting plate, 146-connecting plate, 150-driver, 151-connecting rod, 152-driving part, 154-driving shaft, 162-pressure sensor, 164-controller, 166-position sensor. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0034] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement condition and the like between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0035] In the present application, the driver includes but is not limited to a hydraulic driving type oil cylinder and a pneumatic driving type air cylinder.

[0036] In the present application, the directions or position relationships indicated by “front”, “back”, “left”, “right”, “up”, “down”, “positive” and “negative” are based on the directions or position relationships in the general use state, and are for the convenience of describing the present application, not for the purpose of narrow limitation.

[0037] In the present application, unless otherwise explicitly specified and limited, the terms “connection”, “fixing” and the like should be understood in a broad sense, for example, “fixing” can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0038] In addition, the descriptions such as "first", "second" and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present application.

[0039] The present application will be described below in conjunction with the accompanying drawings and specific embodiments:

[0040] Please refer to Figure 1 and Figure 4 The flushing flap 100 provided by the embodiments of the present application can prevent water leakage, lock stably, and enable the door body 120 to be quickly opened, thereby improving the flushing effect and the like. In the case that the water flow channel of the underground channel is flushed, the door body 120 loses the water flushing force and rotates toward the direction close to the door frame 110 under the action of its own gravity, and is naturally attached to the door frame 110. At this time, there is still a certain gap between the lower part of the door body 120 and the door frame 110, and the door body 120 cannot be automatically sealed. At this time, the driver 150 starts to drive the second locking member 140 to move relative to the first locking member 130, and the water outlet is sealed by the cooperation of the first locking member 130 and the second locking member 140. The rotating connection position of the door body 120 and the door frame 110 is arranged at the upper part, and the first locking member 130 and the second locking member 140 are arranged at the lower part.

[0041] The flushing flap 100 provided by the embodiments of the present application can be applied to the underground channel, box culvert or storage tank, and is used for controlling the water flow, water storage and flushing in the above structures. In the embodiments, the water flow channel of the flushing underground channel is taken as an example for description, and the same can be applied to other structures. If the underground channel needs to be flushed, the door body 120 is opened, so that the water upstream is flushed to the downstream through the water outlet in an instant, and the garbage downstream is flushed away.

[0042] Please refer to Figures 1 to 5In the embodiment, the flushing flap 100 comprises a frame 110, a door body 120, a first locking member 130, a second locking member 140, a driver 150 and a connecting rod 151. The frame 110 has a water outlet. The door body 120 is rotationally connected with the frame 110 and is used to open or close the water outlet. The first locking member 130 is installed on the door body 120. The second locking member 140 has oppositely arranged pre-locking segments 141a and locking segments 141b. The driver 150 is fixed on the frame 110 and is used to drive the connecting rod 151. The connecting rod 151 can move linearly under the driving of the driver 150. The second locking member 140 is fixedly connected with the connecting rod 151 and can move linearly under the driving of the connecting rod 151. The second locking member 140 has the pre-locking segments 141a and the locking segments 141b, wherein the included angle between the pre-locking segments 141a and the locking segments 141b is greater than 180°, the second locking member 140 is matched with the first locking member 130, when the second locking member 140 is displaced from the pre-locking segments 141a to the locking segments 141b relative to the first locking member 130, the distance between the second locking member 140 and the first locking member 130 gradually decreases in the process that the pre-locking segments 141a of the second locking member 140 are in contact with the first locking member, and when the second locking member 140 continues to move to the locking segments, the locking segments 141b of the second locking member 140 abut against the first locking member, that is, the door body 120 is closed. When the second locking member 140 moves out of the locking segments 141b relative to the first locking member 130 in the same direction, the door body 120 is opened.

[0043] The driver 150 can directly or indirectly drive the second locking member 140 to move relative to the first locking member 130, so that the first locking member 130 and the second locking member 140 can be locked or unlocked. When it is necessary to flush the water flow channel of the downstream underground conduit, the first locking member 130 and the second locking member 140 are unlocked from the locking segments 141b, and under the action of the water flow force, the door body 120 is opened, and a large amount of water flows from the water outlet to the downstream. After the flushing is completed, the door body 120 rotates to close to the frame 110 under the action of gravity, at this time, the driver 150 directly or indirectly drives the second locking member 140 to move relative to the first locking member 130, so that the first locking member 130 can gradually contact the second locking member 140 from the pre-locking segments 141a, so that the door body 120 can continue to rotate to the direction of closing to the frame 110 through the first locking member 130, until the door body 120 seals the water outlet.

[0044] The first locking member 130 can slide from the locking segments 141b to gradually cooperate with the second locking member 140, until the first locking member 130 is locked with the second locking member 140. If it is necessary to open the door body 120, the driver 150 continues to directly or indirectly drive the second locking member 140 to move in the same direction, so that the first locking member 130 can slide out of the locking segments 141b and quickly separate from the second locking member 140, without sliding out of the pre-locking segments 141a, which can reduce the unlocking time, so that the door body 120 can be quickly opened, and the flushing effect is improved.

[0045] In the present application, the driver 150 drives the connecting rod 151 to move linearly, and the connecting rod 151 is fixed with a plurality of second locking members 140. Under the same specification, the tensile capacity of the connecting rod 151 is far stronger than the torsional capacity, and therefore, the linear movement of the connecting rod 151 drives the second locking members 140 to move rotationally relative to the connecting rod, which has a longer service life and can also ensure the synchronous movement of the second locking members 140, avoiding local sealing failure to cause water leakage.

[0046] In the present application, the included angle between the pre-locking section 141b and the locking section 141a is greater than 180°, and after the flushing is completed, the lower end of the door body 120 is automatically close to the door frame 110 under the action of gravity, and there is still a certain gap between the lower end of the door body 120 and the door frame 110. The pre-locking section 141a serves to first touch the first locking member 130 on the door body 120, and during the linear movement of the second locking member, the pre-locking section 141a slowly presses the first locking member 130 towards the door frame, until the locking section 141b tightly seals the door body 120 and the door frame 110.

[0047] In the prior art, the locking hook for flushing the door generally has a hook shape, and the locking function is realized by hooking the locking hole on the door body. Generally, considering the error or the gap range between the lower end of the door body and the lower end of the door frame under gravity, the hook part of the locking hook needs to have a certain length. Since the movement directions of unlocking and locking are opposite, the greater this length is, the greater the unhooking stroke is when opening the door, which affects the opening speed. In the technical solution of the present application, the error or the gap range between the lower end of the door body and the lower end of the door frame under gravity is guaranteed by the pre-locking section 141a of the second locking member. During the locking process, the greater the error or the previous gap is, the greater the length of the pre-locking section 141a needs to be, and the greater the angle between the pre-locking section 141a and the locking section 141b needs to be. However, in the present application, the opening process is not from the pre-locking section 141a, that is, the unlocking and locking are not reverse movements, but are same-direction movements, that is, the length of the pre-locking section 141a does not affect the opening and locking. Therefore, the present application can relatively guarantee that the door is quickly opened.

[0048] In addition, before the door body 120 is opened, a large amount of water has been accumulated in the door body 120, and the water pressure is large. If the first locking member 130 slides out of the pre-locking section 141a, the unlocking distance is large, and if fast unlocking is required, the reaction speed of the driver 150 needs to be fast enough, which requires a larger power source for a short time, resulting in the expansion of the power station and a substantial increase in cost.

[0049] That is to say, in the embodiment, the second locking member 140 moves in the same direction relative to the first locking member 130 when locking and unlocking the door body 120, for the sake of brief description, the direction in which the driver 150 drives the second locking member 140 to move relative to the first locking member 130 to lock the first locking member 130 is defined as positive direction, and the opposite direction is defined as reverse direction.

[0050] In the process of locking the door body 120, the driver 150 drives the second locking member 140 to move in positive direction, through the cooperation of the first locking member 130 and the second locking member 140, the door body 120 is closed to the water drain port, if it is needed to open the door body 120, the driver 150 continues to drive the second locking member 140 to move in positive direction, the first locking member 130 separates from the second locking member 140 from the locking section 141b, so that the door body 120 is unlocked from the door frame 110, and the door body 120 can be opened.

[0051] In the embodiment, as shown in Figs. 2 and 3, the upper end of the door body 120 is rotatably connected with the upper end of the door frame 110, and the first locking member 130 is arranged at the lower end of the door body 120. The driver 150 and the second locking member 140 are arranged at the lower end of the door frame 110, and the connecting rod 151 is parallelly connected with the driver 150 through the second locking member 140. In the prior art, the driver 150 is usually arranged at the left side or the right side of the door frame, for example, the rotating shaft driving type flush valve door, because it is needed to convert the linear motion of the driver into the rotary motion of the locking hook, therefore, the driver can only be arranged at the left side or the right side of the door frame. For another example, the connecting rod shaft driving type flush valve door, the driver is also arranged at the left side or the two sides of the door frame, and the connecting rod shaft also moves linearly, but the motion direction of the driver is perpendicular to the motion direction of the connecting rod shaft, therefore, a direction conversion member is designed to convert the motion direction, which increases the complexity of the structure and the failure rate. In the present application, the driver 150 is arranged at the lower end of the door frame 110, and the connecting rod 151 is parallelly connected with the driver 150, that is, the connecting rod 151 and the driver 150 can move synchronously and in the same direction, which is more reasonable in design and simpler in structure.

[0052] Please refer to Figure 2In a feasible embodiment, the driver 150 is fixedly connected with the first second locking piece at the side end (left end or right end) of the door frame. The advantage of this design is that the connecting rod can be made thin enough without affecting the function. In this application, the second locking piece is fixedly connected with the connecting rod, and the connecting rod moves linearly in the same direction with the driver, and the connecting rod is always used for its good tensile property. The driver 150 is connected with the first second locking piece, and the second locking piece 140 is connected with the connecting rod 151, and the connecting rod 151 moves linearly in parallel with the driver. The driver 150 directly drives the first second locking piece, and the connecting rod 151 drives the other second locking pieces 140, and the movement of the connecting rod generates tensile force rather than torsion. The connecting rod is usually made of metal material with certain hardness, such as steel, and the metal material with certain hardness, especially the rod-shaped metal material, has a tensile property much greater than a torsional property.

[0053] Please refer to Figure 2 and Figure 3 In this embodiment, the second locking piece 140 includes a connecting part and a locking part, which are respectively at two ends of the second locking piece. The connecting part is located at one end close to the door frame 110, which is convenient for connection with the driver 150 and the connecting rod 151. The locking part is located at one end close to the door body 120, which is convenient for locking or unlocking with the first locking piece 130. The connecting part and the locking part are part of the second locking piece. The connecting part is used to connect the connecting rod 151 and make the connecting rod 151 move in the same direction with the driver 150. The locking part is used to set the pre-locking section and the locking section, and the angle of the pre-locking section and the locking section is greater than 180°. In a feasible way, the pre-locking section is an arc surface or an inclined surface, and the locking section is a flat surface.

[0054] Please refer to Figure 3 In a feasible embodiment, the connecting rod 151 is preferably two. The two connecting rods 151 are respectively located at the two sides of the driver and are parallel to the driver. Since the connecting rod 151 and the driver 150 are parallel, the driver 150 is preferably arranged at the end point of the connecting rod 151, that is, the driver 150 can be fixedly connected with the second locking piece 140 at the end point. The connecting part of the second locking piece is close to the door frame, and the locking part of the second locking piece is close to the door body. During the locking of the door body, the stress at the locking part may cause the connecting rod to be unstable. Therefore, the design of two connecting rods distributed on both sides of the driver 150 can enhance the stability of the structure during movement.

[0055] Please refer to Figure 5 and Figure 6In this embodiment, the second locking member 140 has a locking surface 142, and a pre-locking section 141a and a locking section 141b are respectively disposed at both ends of the locking surface 142. The second locking member 140 can move relative to the first locking member 130 under the drive of the driver 150, so that the first locking member 130 can slide from the pre-locking section 141a to abut against the locking surface 142, so that the door 120 closes the drain outlet, or the first locking member 130 can slide from the locking section 141b to separate from the locking surface 142, so that the door 120 opens the drain outlet.

[0056] The pre-locking section 141a and the locking section 141b are respectively located at both ends of the locking surface 142. After the door body 120 is attached to the door frame 110, the door body 120 does not seal the drain outlet, and the door body 120 is not completely closed, resulting in a certain error. The driver 150 drives the second locking member 140 to move forward, so that the first locking member 130 can contact the locking surface 142 from the pre-locking section 141a. The locking surface 142 gradually abuts against the first locking member 130, causing the door body 120 to continue to rotate towards the door frame 110 until the drain outlet is sealed. If it is necessary to open the drain outlet, the driver 150 continues to drive the second locking member 140 forward, causing the first locking member 130 to disengage from the locking section 141b and the locking surface 142. The first locking member 130 and the second locking member 140 separate, so that the door body 120 and the door frame 110 are separated. The door body 120 can be opened quickly, reducing the unlocking time and increasing the opening speed, thereby improving the flushing effect.

[0057] Please see Figure 7 In this embodiment, the locking surface 142 includes a pre-locking surface 142a and a fixed surface 142b, which are connected. The pre-locking section 141a is located at the end of the pre-locking surface 142a away from the fixed surface 142b, and the locking section 141b is located at the end of the fixed surface 142b away from the pre-locking surface 142a. The pre-locking surface 142a is inclined relative to the fixed surface 142b. Under the condition that the first locking member 130 abuts against the fixed surface 142b, the door 120 closes the drain outlet.

[0058] The pre-locking surface 142a is inclined relative to the fixed surface 142b. After the first locking member 130 engages with the locking surface 142a from the pre-locking section 141a, as... Figure 8 As shown, due to the inclined setting of the pre-locking surface 142a, the first locking member 130 will drive the door body 120 to gradually move towards the door frame 110, so that the door body 120 can fit tightly against the door frame 110 and seal the drain outlet. When the first locking member 130 moves to the fixed surface 142b, as... Figure 7 As shown, the door 120 has closed the drain outlet, and the actuator 150 can stop driving at this time.

[0059] Please see Figure 9If the first locking piece 130 and the second locking piece 140 need to be unlocked, the driver 150 continues to drive the second locking piece 140 to move forward, so that the first locking piece 130 can be separated from the locking section 141b, i.e. the fixed surface 142b away from one end of the pre-locking surface 142a and the entire locking surface 142, the door body 120 and the door frame 110 are unlocked, and the water outlet is opened. Among them, the first locking piece 130 slides out of the locking section 141b, compared with the first locking piece 130 sliding out of the pre-locking section 141a, the unlocking distance of the first locking piece 130 can be reduced, and the unlocking time of the door body 120 can be reduced under other conditions, so as to improve the opening speed and improve the flushing effect.

[0060] In the embodiment, the pre-locking surface 142a is one of an arc surface and an inclined surface, and the fixed surface 142b is a plane. The pre-locking surface 142a has a certain inclination angle relative to the fixed surface 142b, and can resist the first locking piece 130 to continue to move in the direction close to the door body 120, so as to lock the water outlet.

[0061] Among them, the fixed surface 142b is a plane, which means that the fixed surface 142b is parallel to the long side of the door frame 110, and the pre-locking surface 142a is inclined, which means that the pre-locking surface 142a is inclined in the direction close to the door frame 110. The pre-locking section 141a is arranged at one end of the pre-locking surface 142a away from the fixed surface 142b, and the other end of the pre-locking surface 142a is connected with the fixed surface 142b. Among the pre-locking section 141a and the connection, the distance from the pre-locking section 141a to the door frame 110 is the farthest, and the distance from the connection to the door frame 110 is the closest. The distance from other points on the pre-locking surface 142a to the door frame 110 becomes smaller and smaller in the direction from the pre-locking section 141a to the connection.

[0062] The fixed surface 142b is a plane, that is, the distance from any point on the fixed surface 142b to the door frame 110 is equal. In the process of the first locking piece 130 abutting against the fixed surface 142b, the door body 120 will not continue to move towards the door frame 110. When the first locking piece 130 abuts against the fixed surface 142b, it can be considered that the door body 120 has sealed the water outlet.

[0063] In addition, the movement direction of the second locking piece 140 driven by the driver 150 is also a straight line, and is the same as the long side direction of the door frame 110. The fixed surface 142b is parallel to the movement direction of the second locking piece 140, and the pre-locking surface 142a is also inclined relative to the movement direction of the second locking piece 140. In the process of the first locking piece 130 sliding relative to the locking surface 142, the pre-locking surface 142a gradually abuts against the first locking piece 130 to move in the direction close to the door frame 110, so that the door body 120 gradually moves towards the door frame 110 to seal the water outlet.

[0064] Please refer to Figure 11In the embodiment, the flush flap 100 further comprises a pressure sensor 162 and a controller 164, the pressure sensor 162 is electrically connected with the controller 164, the pressure sensor 162 is used to detect the locking pressure value between the first locking member 130 and the locking surface 142, and the controller 164 is used to control the driver 150 to stop under the condition that the locking pressure value is greater than or equal to a set pressure value.

[0065] The pressure sensor 162 is mainly used to detect the locking pressure value between the first locking member 130 and the locking surface 142. In the process of sliding the first locking member 130 relative to the pre-locking surface 142a, since the pre-locking surface 142a is inclined, the locking pressure value will gradually increase during the movement of the first locking member 130. When the first locking member 130 moves to the fixed surface 142b, since the fixed surface 142b is a flat surface, the locking pressure value will not continue to increase. If the locking pressure value is greater than or equal to the set pressure value, it can be determined that the first locking member 130 moves to the fixed surface 142b, which indicates that the first locking member 130 has been moved to the position, and the driver 150 can be stopped.

[0066] The set pressure value can be obtained by testing after the flush flap 100 is installed in the dark channel, or can be set when the flush flap 100 is shipped.

[0067] The flush flap further comprises a position module, which is used to detect and control the position of the second locking member.

[0068] Please refer to Figure 12 In addition, in other embodiments, whether the first locking member 130 moves to the fixed surface 142b can also be determined by the position of the first locking member 130. Specifically, the flush flap 100 further comprises a position sensor 166 and a controller 164, the position sensor 166 is electrically connected with the controller 164, the position sensor 166 is used to detect the in-place signal of the first locking member 130 moving to the fixed surface 142b, and the controller 164 is used to control the driver 150 to stop according to the in-place signal.

[0069] The position sensor 166 can be arranged at the fixed surface 142b. When the first locking member moves to the fixed surface 142b, the first locking member 130 will trigger the position sensor 166 to send the in-place signal. After receiving the in-place signal, the controller 164 controls the driver 150 to stop moving, the first locking member 130 abuts against the fixed surface 142b, the door body 120 is fixedly connected with the door frame 110, and the drain port is sealed.

[0070] Please refer to Figure 5 and Figure 6In the embodiment, the second locking member 140 comprises a bottom plate 143, a driving plate 144 and a bearing plate 145, the driving plate 144 and the bearing plate 145 are installed on the bottom plate 143, the driving plate 144 is connected with the driver 150, and the locking surface 142 is arranged on the side of the bearing plate 145 close to the driving plate 144.

[0071] The driver 150 is connected with the driving plate 144, the driving plate 144 is perpendicular to the locking surface 142, the movement direction of the second locking member 140 is perpendicular to the driving plate 144 and parallel to the bottom plate 143, and the driving plate 144 is mainly used for being connected with the driver 150 to drive the second locking member 140 to move relative to the first locking member 130.

[0072] In the embodiment, the second locking member 140 further comprises a connecting plate 146, the connecting plate 146 is arranged in a spaced manner with the driving plate 144, the connecting plate 146 and the driving plate 144 are arranged at an angle with the bearing plate 145, the connecting plate 146 is arranged corresponding to the pre-locking section 141a, and the driving plate 144 is arranged corresponding to the locking section 141b.

[0073] The connecting plate 146 is also perpendicular to the locking surface 142, the connecting plate 146 is parallel to the driving plate 144 and arranged in a spaced manner, the driver 150 can be connected with the connecting plate 146 or not, the connecting plate 146 is arranged corresponding to the pre-locking section 141a, and can limit the first locking member 130 when the first locking member 130 slides to the locking surface 142. Similarly, the driving plate 144 is arranged corresponding to the locking section 141b, and can limit the first locking member 130 when the first locking member 130 slides out.

[0074] In the embodiment, the first locking member 130 comprises a fixed shaft 132 and a roller 134, the fixed shaft 132 is fixedly connected with the door body 120, and the roller 134 is rotatably connected with the fixed shaft 132 and can rotatably slide relative to the second locking member 140.

[0075] The roller 134 abuts against the locking surface 142 and can rotatably slide relative to the locking surface 142, so as to convert sliding friction into rotating friction, reduce the friction force between the roller 134 and the locking surface 142, reduce the power of the friction effect, and increase the effective power ratio of the driver 150.

[0076] In addition, the first locking member 130 can only comprise the fixed shaft 132, the fixed shaft 132 is fixedly connected with the door body 120 and can slide relative to the second locking member 140.

[0077] Please refer to Figure 13In the embodiment, the second locking member 140 is multiple, the first locking member 130 is multiple, the multiple first locking members 130 are installed at the door body 120 in intervals, the driver 150 comprises a driving shaft 154 and a driving part 152, the driving part 152 is connected with the driving shaft 154, the multiple second locking members 140 are fixed on the driving shaft 154 in intervals, and one first locking member 130 is locked with one second locking member 140.

[0078] Since the door body 120 and the door frame 110 are long, the first locking member 130 and the second locking member 140 can be both multiple, the multiple first locking members 130 are arranged on the long side of the door body 120, the multiple second locking members 140 are arranged on the long side of the door frame 110, and the multiple second locking members 140 are all connected with the driving shaft 154, so that the multiple second locking members 140 can move synchronously and cooperate with the first locking member 130 from different positions of the door body 120, thereby improving the sealing effect of the door body 120 on the water outlet.

[0079] The working principle of the flushing flap valve 100 provided in the embodiment is as follows: in the embodiment, under the condition that the door body 120 seals the water outlet, the first locking member 130 abuts against the fixed surface 142b, if it is needed to flush the water flow channel of the downstream underground channel, the first locking member 130 slides out of the locking section 141b and is separated from the fixed surface 142b, so that the door body 120 is unlocked from the door frame 110, under the action of the water force, the door body 120 is opened, and a large amount of water flows from the water outlet to the downstream. After the flushing is completed, the door body 120 rotates to the door frame 110 under the action of gravity, the driver 150 drives the second locking member 140 to move relative to the first locking member 130, so that the first locking member 130 contacts the pre-locking surface 142a from the pre-locking section 141a, and the door body 120 continues to move to the door frame 110 under the abutment of the pre-locking surface 142a, until the second locking member 140 slides to abut against the fixed surface 142b. The first locking member 130 is abutted and moved to the position relative to the second locking member 140, the driver 150 stops working, and the door body 120 seals the water outlet.

[0080] In summary, the flushing flap valve 100 provided in the embodiment, the first locking member 130 can slide from the locking section 141b to gradually cooperate with the second locking member 140, until the first locking member 130 is locked with the second locking member 140, if it is needed to open the door body 120, the driver 150 continues to drive the second locking member 140 to move in the same direction, so that the first locking member 130 can slide out of the locking section 141b and quickly separate from the second locking member 140, without sliding out of the pre-locking section 141a, the unlocking time is reduced, the door body 120 can be quickly opened, and the flushing effect is improved.

[0081] In the description of the specification, reference to "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that a particular feature, structure, material, or characteristic being described is included in at least one embodiment or example of the application. The appearances of the phrases "in one embodiment", "in some embodiments", "an example", "a specific example", or "some examples" in various places in the specification are not necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples. Moreover, the terminology used in the specification is for the purpose of describing the particular versions of the application and is not intended to be limiting. The terminology can be standardized by the IEEE or other standards bodies.

Claims

1. A flushing flap gate, characterized in that, include: The door frame has a drain outlet; The door body is rotatably connected to the door frame and is used to open or close the drain outlet. The first locking element is fixed to the door body; A driver, fixed to the door frame, is used to drive the linkage; The connecting rod moves in the same direction as the driver under the drive of the driver; The second locking member is fixedly connected to the connecting rod and moves linearly under the drive of the connecting rod. The second locking member has a pre-locking section and a locking section, wherein the included angle between the pre-locking section and the locking section is greater than 180°. The second locking member is adapted to the first locking member. When the second locking member moves from the pre-locking section to the locking section relative to the first locking member, the door is closed. The driver drives the second locking member to move relative to the first locking member, with the direction of locking the first locking member defined as positive. The driver drives the second locking member to move positively, and the first locking member separates from the second locking member from the locking section, and the door is opened.

2. The flushing flap gate according to claim 1, characterized in that: The actuator is located laterally on the lower side of the door frame, and the connecting rod is arranged parallel to the actuator.

3. The flushing flap gate according to claim 2, characterized in that: The connecting rod is fixedly connected to a plurality of second locking elements, and the driver is fixedly connected to the second locking elements at the end point.

4. The flushing flap gate according to claim 2, characterized in that: The second locking member includes a connecting part and a locking part, which are located at opposite ends of the second locking member. The connecting part is used to connect the connecting rod, and the locking part is used to set the pre-locking section and the locking section.

5. The flushing flap gate according to claim 2, characterized in that: The connecting rod consists of two rods, which are distributed on both sides of the driver.

6. The flushing flap gate according to claim 4, characterized in that: The pre-locking section is either an arc surface or an inclined surface, and the locking section is a straight surface.

7. The flushing flap gate according to claim 1, characterized in that: The first locking element is a fixed shaft, which slides relative to the second locking element.

8. The flushing flap gate according to claim 1, characterized in that: The first locking member includes a fixed shaft and a roller, with the roller externally positioned on the fixed shaft, and the roller rotating relative to the second locking member.

9. The flushing flap gate according to claim 1, characterized in that: The flushing flap also includes a position module, which is used to detect and control the position of the second locking member.

10. The flushing flap gate according to claim 9, characterized in that, The position module includes a position sensor and a controller. The position sensor is electrically connected to the controller. The position sensor is used to detect the positioning signal of the second locking member moving to the locking segment. The controller is used to control the driver to stop based on the positioning signal. or, The position module includes a pressure sensor and a controller. The pressure sensor is electrically connected to the controller. The pressure sensor is used to detect the locking pressure value between the second locking member and the locking section. The controller is used to control the drive to stop when the locking pressure value is greater than or equal to a set pressure value.

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