A municipal road drainage structure with emergency drainage function

Abstract

The present invention relates to a drainage structure, and in particular to a municipal road drainage structure with an emergency drainage function. Provided is a municipal road drainage structure with an emergency drainage function that can drain water in an emergency and clear blockages. A municipal road drainage structure with an emergency drainage function includes a drainage pipe, a water collecting frame, a top cover, etc. A water collecting frame is provided on the top of the drainage pipe, and a detachable top cover is provided on the top of the water collecting frame. The present invention can control the U-shaped plate to be pulled to the right so that the U-shaped plate no longer contacts the shielding plate, and then the top cover can be opened, and then the shielding plate can be controlled to rotate so that the shielding plate no longer blocks the liquid outlet pipe. At this time, the accumulated water can be discharged into the drainage pipe through the liquid outlet pipe, thereby performing emergency drainage.

Description

Technical Field

[0001] The invention relates to a drainage structure, in particular to a municipal road drainage structure with emergency drainage function. Background Art

[0002] In the process of urbanization, municipal roads are an important part of it, and the drainage problem of municipal roads is a problem that deserves great attention in municipal engineering. One of the main reasons for the damage of roads and structures along the road is the effect of water. Waterlogging on the road is not only extremely detrimental to traffic safety, but long-term waterlogging may also cause overall damage to the roadbed. Therefore, the road drainage structure is an important part of road design. However, during the drainage process, garbage on the road surface can easily cause blockage of the guide plate.

[0003] The patent authorization announcement number is CN113417349A, which is a municipal road drainage structure with an emergency drainage function, including a drainage channel and a plurality of drainage units located at the upper part of the drainage channel, wherein the drainage units include drainage boards that are arranged oppositely and can be separated from each other, and drainage holes are provided on the drainage boards, and gaps are formed between the opposite drainage boards; when the amount of water entering the drainage channel increases, the gaps between the opposite drainage boards are impacted by the water flow and push the drainage boards away from each other. The drainage structure arranges opposite drainage boards on the drainage channel and allows the drainage boards to be separated from each other, so that when the amount of water increases in heavy rain weather, the gaps between the opposite drainage boards are increased by the impact of the water flow, thereby achieving the purpose of increasing the drainage volume, but there is no emergency drainage port, so when the drainage board is blocked by garbage, the drainage effect will be poor.

[0004] Therefore, it is also necessary to design a municipal road drainage structure with emergency drainage function that can drain water in an emergency and clear blockages. Summary of the invention

[0005] In order to overcome the disadvantages of the prior art that there is no emergency drain outlet and the drainage effect is poor when the drain plate is blocked by garbage, the technical problem of the present invention is to provide a municipal road drainage structure with emergency drainage function that can drain water in an emergency and clear blockages.

[0006] The technical implementation scheme of the present invention is: a municipal road drainage structure with emergency drainage function, including a drainage pipe, a water collecting frame, a top cover, a drainage component and a blocking component. A water collecting frame is provided on the top of the drainage pipe, a detachable top cover is provided on the top of the water collecting frame, a drainage component is provided on the right side of the water collecting frame, the drainage component is used for emergency drainage, and a blocking component is provided in the water collecting frame, and the blocking component is used for filtering garbage.

[0007] In a preferred embodiment of the present invention, the drainage assembly includes a liquid outlet pipe, a fixed plate, a shielding plate, and a U-shaped plate. The liquid outlet pipe is connected between the lower right side of the water collecting frame and the drainage pipe, the fixed plate is connected to the right inner wall of the water collecting frame, the left side of the fixed plate is rotatably connected to the shielding plate, the shielding plate is used to shield the liquid outlet pipe, and the right side of the water collecting frame is slidably connected to the U-shaped plate, and the U-shaped plate is in contact with the shielding plate at this time.

[0008] In a preferred embodiment of the present invention, the blocking assembly includes a filter frame, a sliding rod, a toggle plate, a connecting block and a first spring. A filter frame is provided on the inner side of the water collecting frame. A sliding rod is slidably provided on the upper part of the filter frame. The left side of the sliding rod passes through the water collecting frame and the filter frame. Seven toggle plates are connected to the lower side of the sliding rod. The toggle plates are in contact with the inner wall of the filter frame. The toggle plates are used to clean the filter frame. Connecting blocks are provided on the front and rear sides of the left part of the sliding rod. The first spring is connected between the right side of the connecting block and the left side of the water collecting frame.

[0009] In a preferred embodiment of the present invention, it also includes a pulling assembly for driving the sliding rod to move left and right, the pulling assembly includes a contact plate, a reduction motor, a rotating rod and a pushing block, the left side of the sliding rod is connected to the contact plate, the upper left side of the drain pipe is provided with a reduction motor, the output shaft of the reduction motor is connected to the rotating rod through a coupling, the right side surface of the rotating rod is provided with a pushing block, and the pushing block rotates to contact the contact plate.

[0010] In a preferred embodiment of the present invention, it also includes a rotating assembly for pulling the baffle plate to rotate and open, the rotating assembly includes a guide rod, a sliding plate, a fixed pulley and a pull wire, the right side of the water collecting frame is connected to the guide rod, the upper part of the guide rod is slidably connected to the sliding plate, the U-shaped plate moves to the right and contacts the sliding plate, the right inner wall of the water collecting frame is provided with a fixed pulley, the left side of the sliding plate is connected to the pull wire, the tail end of the pull wire passes through the right wall of the water collecting frame and bypasses the fixed pulley to be connected to the upper side of the baffle plate.

[0011] In a preferred embodiment of the present invention, it also includes a pulling component for driving the U-shaped plate to move left and right, and the pulling component includes a guide block, a strip plate, a rotating shaft, a cam and a T-shaped rod. The left and right sides of the water collecting frame are symmetrically provided with guide blocks, and the strip plates are slidably connected between the guide blocks on the same side laterally. The right ends of the strip plates are connected to the U-shaped plates. The left side of the rotating rod is connected to the rotating shaft through a coupling. The rotating shaft is connected to left and right cams in opposite directions through an overrunning clutch. The overrunning clutches between the two cams and the rotating shaft are in opposite directions. Left and right T-shaped rods are connected between the left sides of the strip plates, and the rotation of the cams will contact the T-shaped rods on the same side.

[0012] In a preferred embodiment of the present invention, a limiting assembly for limiting the sliding plate is also included, and the limiting assembly includes a support block, a wedge block, a right-angle plate, a second spring, a fixed rod and a push plate. Two front and rear support blocks are provided on the right side of the water collecting frame. The right parts of the support blocks are slidably connected with wedge blocks. The wedge blocks can limit the sliding plate after sliding toward each other. The sides of the wedge blocks away from each other are connected with right-angle plates, and second springs are connected between the right-angle plates and the support blocks on the same side. At this time, the second springs are in a stretched state. The right sides of the strip plates are connected with fixed rods, and the push plates are connected between the lower sides of the fixed rods. The push plates are in contact with the right-angle plates at this time.

[0013] In a preferred embodiment of the present invention, ten drainage holes are formed on the top cover.

[0014] The present invention has the following advantages: 1. The present invention can control the U-shaped plate to be pulled to the right so that the U-shaped plate no longer contacts the shielding plate, and then the top cover can be opened, and then the shielding plate can be controlled to rotate so that the shielding plate no longer blocks the liquid outlet pipe. At this time, the accumulated water can be discharged into the drain pipe through the liquid outlet pipe, thereby performing emergency drainage.

[0015] 2. The present invention can intermittently control the sliding rod to move to the left, so that the sliding rod can move left and right through the action of the first spring, so that the toggle plate can move left and right, and then the toggle plate can scrape and dredge the garbage in the filter frame, so that the drainage is smoother.

[0016] 4. The present invention can start the reduction motor to move the toggle plate left and right, so that the toggle plate can scrape and dredge the garbage in the filter frame, thereby reducing the trouble of manually controlling the sliding rod.

[0017] 5. The present invention controls the U-shaped plate to be pulled to the right. When the U-shaped plate moves to contact with the sliding plate, it will drive the sliding plate to move to the right. At this time, the shielding plate will be rotated and opened by pulling the pull wire. In this way, there is no need to open the top cover and control the rotation of the shielding plate, which makes the operation simpler and more convenient.

[0018] 6. The present invention can also automatically move the U-shaped plate to the right by starting the reduction motor, and relatively move the wedge-shaped block, thereby jamming the sliding plate, so that the shielding plate is always in a rotated open state, thereby realizing automatic emergency drainage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 2 It is a schematic diagram of a first partial three-dimensional structure of the present invention.

[0021] Figure 3It is a schematic diagram of a second partial three-dimensional structure of the present invention.

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the drainage component of the present invention.

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the barrier assembly of the present invention.

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the pulling assembly of the present invention.

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the rotating assembly of the present invention.

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the pulling assembly of the present invention.

[0027] Fig. 9 It is a schematic diagram of the three-dimensional structure of the limiting component of the present invention.

[0028] Markings in the accompanying drawings: 1: drain pipe, 2: water collecting frame, 3: top cover, 4: drainage assembly, 41: liquid outlet pipe, 42: fixed plate, 43: shielding plate, 44: U-shaped plate, 5: blocking assembly, 51: filter frame, 52: sliding rod, 53: toggle plate, 54: connecting block, 55: first spring, 6: pulling assembly, 61: contact plate, 62: reduction motor, 63: rotating rod, 64: pushing block, 7: rotating assembly, 71: guide rod, 72: sliding plate, 73: fixed pulley, 74: pull wire, 8: pulling assembly, 81: guide block, 82: strip plate, 83: rotating shaft, 84: cam, 85: T-bar, 9: limiting assembly, 91: support block, 92: wedge block, 93: right-angle plate, 94: second spring, 95: fixed rod, 96: pushing plate. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0030] Example 1

[0031] A municipal road drainage structure with emergency drainage function, such as Figure 1-5 As shown, it includes a drain pipe 1, a water collecting frame 2, a top cover 3, a drain component 4 and a blocking component 5. The top of the drain pipe 1 is provided with a water collecting frame 2, and the top of the water collecting frame 2 is provided with a detachable top cover 3, and ten drainage holes are opened on the top cover 3. The right side of the water collecting frame 2 is provided with a drain component 4, and the drain component 4 can drain water in an emergency. The water collecting frame 2 is provided with a blocking component 5, and the blocking component 5 can filter garbage.

[0032] When it is necessary to drain the municipal road, the municipal road drainage structure with emergency drainage function can be used. First, the municipal road drainage structure with emergency drainage function is buried underground. When water accumulates on the municipal road, the water will enter the water collecting frame 2 through the drainage hole groove of the top cover 3, and then be discharged into the drainage pipe 1, thereby playing a drainage role; when there is too much water on the municipal road, the drainage component 4 can be controlled to perform emergency drainage, and the blocking component 5 can also be controlled to dredge the drainage structure, thereby making the drainage smoother. When emergency drainage is not needed, the drainage component 4 is controlled to reset, and then the blocking component 5 is no longer controlled.

[0033] like Figure 3 and Figure 4 As shown, the drainage assembly 4 includes a liquid outlet pipe 41, a fixed plate 42, a shielding plate 43, and a U-shaped plate 44. The liquid outlet pipe 41 is connected between the lower right side of the water collecting frame 2 and the drainage pipe 1. The right inner wall of the water collecting frame 2 is fixedly connected with the fixed plate 42 by bolts. The left side of the fixed plate 42 is rotatably connected with the shielding plate 43, and the shielding plate 43 is used to shield the liquid outlet pipe 41. The right side of the water collecting frame 2 is slidably connected with the U-shaped plate 44, and the U-shaped plate 44 is in contact with the shielding plate 43 at this time.

[0034] When there is too much water on the municipal road, the U-shaped plate 44 can be controlled to be pulled to the right so that the U-shaped plate 44 no longer contacts the baffle plate 43, and then the top cover 3 can be opened, and then the baffle plate 43 can be controlled to rotate so that the baffle plate 43 no longer blocks the liquid outlet pipe 41. At this time, the accumulated water can be discharged into the drain pipe 1 through the liquid outlet pipe 41, so as to perform emergency drainage. When emergency drainage is not needed, the U-shaped plate 44 is controlled to move to the left and reset. At this time, the U-shaped plate 44 will push the baffle plate 43 to rotate and reset, so that the baffle plate 43 blocks the liquid outlet pipe 41 again, and the U-shaped plate 44 will prevent the baffle plate 43 from rotating and opening.

[0035] like Figure 1 and Figure 5 As shown, the blocking assembly 5 includes a filter frame 51, a sliding rod 52, a toggle plate 53, a connecting block 54 and a first spring 55. The filter frame 51 is provided on the inner side of the water collecting frame 2. The upper part of the filter frame 51 is slidably provided with a sliding rod 52. The left side of the sliding rod 52 passes through the water collecting frame 2 and the filter frame 51. Seven toggle plates 53 are connected to the lower side of the sliding rod 52. The toggle plates 53 are all in contact with the inner wall of the filter frame 51. The toggle plates 53 are used to clean the filter frame 51. Connecting blocks 54 are provided on both the front and rear sides of the left part of the sliding rod 52. The first spring 55 is connected between the right side of the connecting block 54 and the left side of the water collecting frame 2.

[0036] The filter frame 51 can effectively block and collect garbage. When there is too much water on the municipal road, the sliding rod 52 can be intermittently controlled to move to the left, so that the sliding rod 52 can move left and right through the action of the first spring 55, thereby causing the toggle plate 53 to move left and right, and then the toggle plate 53 can scrape and clear the garbage in the filter frame 51, thereby making the drainage smoother. When the water on the municipal road is drained, the sliding rod 52 can be no longer controlled.

[0037] Example 2

[0038] On the basis of Example 1, Figure 1 and Figure 6 As shown, it also includes a pulling component 6, which can drive the sliding rod 52 to move left and right. The pulling component 6 includes a contact plate 61, a reduction motor 62, a rotating rod 63 and a pushing block 64. The contact plate 61 is welded on the left side of the sliding rod 52, and the reduction motor 62 is provided on the upper left side of the drain pipe 1. The output shaft of the reduction motor 62 is connected to the rotating rod 63 through a coupling. The right side surface of the rotating rod 63 is provided with a pushing block 64, and the pushing block 64 rotates to contact the contact plate 61.

[0039] When there is too much water on the municipal road, the reduction motor 62 can be started, and the reduction motor 62 will drive the rotating rod 63 to rotate, thereby causing the pushing block 64 to rotate. The pushing block 64 will rotate and contact the contact plate 61, thereby driving the contact plate 61 to move to the left, thereby causing the sliding rod 52 to move to the left, and the first spring 55 is stretched. When the contact plate 61 moves to disengage from the pushing block 64, the first spring 55 retracts and drives the contact plate 61 and the sliding rod 52 to move to the right and reset. This is repeated, thereby causing the toggle plate 53 to move left and right, and then the toggle plate 53 can scrape and dredge the garbage in the filter frame 51, thereby making the drainage smoother. When the water on the municipal road is drained, the reduction motor 62 can be turned off.

[0040] like Figure 1 and Figure 7 As shown, it also includes a rotating component 7, which can pull the baffle plate 43 to rotate and open. The rotating component 7 includes a guide rod 71, a sliding plate 72, a fixed pulley 73 and a pull wire 74. The right side of the water collecting frame 2 is welded with a guide rod 71, and the upper part of the guide rod 71 is slidably connected to the sliding plate 72. The U-shaped plate 44 moves to the right and contacts the sliding plate 72. The right inner wall of the water collecting frame 2 is provided with a fixed pulley 73, and the left side of the sliding plate 72 is connected to the pull wire 74. The tail end of the pull wire 74 passes through the right wall of the water collecting frame 2 and bypasses the fixed pulley 73 to be connected to the upper side of the baffle plate 43.

[0041] When it is necessary to control the baffle plate 43 to rotate and no longer block the liquid outlet pipe 41, the U-shaped plate 44 is controlled to be pulled to the right. When the U-shaped plate 44 moves to contact with the sliding plate 72, it will drive the sliding plate 72 to move to the right. At this time, the baffle plate 43 will be pulled to rotate and open through the pull wire 74. In this way, there is no need to open the top cover 3 and control the baffle plate 43 to rotate, which makes the operation simpler and more convenient. When it is necessary to control the baffle plate 43 to rotate to block the liquid outlet pipe 41, the U-shaped plate 44 is controlled to move to the left and reset. At this time, the U-shaped plate 44 will push the baffle plate 43 to rotate in the opposite direction and reset, and then pull the sliding plate 72 to the left and reset through the pull wire 74.

[0042] like Figure 1 and Figure 8 As shown, it also includes a pulling component 8, which can drive the U-shaped plate 44 to move left and right. The pulling component 8 includes a guide block 81, a strip plate 82, a rotating shaft 83, a cam 84 and a T-shaped rod 85. The left and right sides of the water collecting frame 2 are both welded with guide blocks 81 symmetrically in front and back, and the guide blocks 81 on the same side are slidably connected with the strip plates 82. The right ends of the strip plates 82 are connected to the U-shaped plate 44. The left side of the rotating rod 63 is connected to the rotating shaft 83 through a coupling. The rotating shaft 83 is connected to left and right cams 84 in opposite directions through an overrunning clutch. The overrunning clutches between the two cams 84 and the rotating shaft 83 are in opposite directions. Left and right T-shaped rods 85 are welded between the left sides of the strip plates 82, and the cam 84 rotates to contact the T-shaped rod 85 on the same side.

[0043] like Figure 1 and Fig. 9 As shown, it also includes a limiting component 9, which can limit the sliding plate 72. The limiting component 9 includes a support block 91, a wedge block 92, a right-angle plate 93, a second spring 94, a fixing rod 95 and a pushing plate 96. Two front and rear support blocks 91 are welded to the right side of the water collecting frame 2. The right part of the support block 91 is slidably connected with a wedge block 92. After the wedge blocks 92 slide toward each other, they can limit the sliding plate 72. The sides of the wedge blocks 92 that are away from each other are welded with a right-angle plate 93. A second spring 94 is connected between the right-angle plate 93 and the support block 91 on the same side. At this time, the second spring 94 is in a stretched state. A fixing rod 95 is welded to the right side of the strip plate 82, and a pushing plate 96 is welded between the lower sides of the fixing rod 95. The pushing plate 96 is in contact with the right-angle plate 93 at this time.

[0044] When there is too much water on the municipal road, the reduction motor 62 will be started, so that the rotating rod 63 will rotate, thereby driving the rotating shaft 83 to rotate. At this time, the left cam 84 will rotate relative to the rotating shaft 83 due to the action of the overrunning clutch, and the right cam 84 will rotate with the rotating shaft 83. At this time, the right cam 84 will rotate and contact with the right T-bar 85, thereby pushing the T-bar 85 to move to the right, and then driving the strip plate 82 to move to the right, so that the fixing rod 95 and the push plate 96 will move to the right. When the push plate 96 moves to the side and disengages from the right-angle plate 93, the second spring 94 retracts and drives the right-angle plate 93 and the wedge block 92 to move inward; at the same time, the strip plate 82 moves to the right and also causes the U-shaped plate 44 to move to the right. When the U-shaped plate 44 moves to the right and contacts the sliding plate 72, it drives the sliding plate 72 to move to the right, and the sliding plate 72 contacts the wedge block 92, so that the wedge block 92 moves backward, and the second spring 94 is stretched. When the sliding plate 72 moves to the side and disengages from the wedge block 92, the second spring 94 retracts and drives the right-angle plate 93 and the wedge block 92 to move inward. When the wedge block 92 retracts, it will drive the wedge block 92 to move inward. At this time, the wedge block 92 will jam the sliding plate 72, so that the shielding plate 43 is always in a rotating open state, thereby realizing automatic emergency drainage; when the municipal road water is drained, the reduction motor 62 is controlled to reverse, and the rotating rod 63 and the rotating shaft 83 will rotate in the opposite direction. At this time, the right cam 84 will rotate relative to the rotating shaft 83 due to the action of the overrunning clutch, and the left cam 84 will rotate with the rotating shaft 83. At this time, the left cam 84 rotates It will contact the T-bar 85 on the left, thereby pushing the T-bar 85 to move to the left, and then drive the strip plate 82, the U-shaped plate 44, the fixing rod 95 and the pushing plate 96 to move to the left and reset. At this time, the pushing plate 96 will contact the right-angle plate 93, so that the right-angle plate 93 and the wedge block 92 move in the opposite direction, and the second spring 94 is stretched. At this time, the wedge block 92 will no longer jam the sliding plate 72, and then the U-shaped plate 44 will push the shielding plate 43 to rotate in the opposite direction and reset. At the same time, the pull wire 74 is used to move the sliding plate 72 to the left and reset.

[0045] Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation shall fall within the protection scope of the present invention.

Claims

1. A municipal road drainage structure with an emergency drainage function, comprising a drainage pipe (1), a water collecting frame (2) and a top cover (3), wherein the top of the drainage pipe (1) is provided with a water collecting frame (2), and the top of the water collecting frame (2) is provided with a detachable top cover (3), wherein: It also includes a drainage component (4) and a blocking component (5), wherein the drainage component (4) is provided on the right side of the water collection frame (2), and the drainage component (4) is used for emergency drainage, and the blocking component (5) is provided in the water collection frame (2), and the blocking component (5) is used for filtering garbage; The drainage assembly (4) comprises a liquid outlet pipe (41), a fixed plate (42), a shielding plate (43), and a U-shaped plate (44); the liquid outlet pipe (41) is connected between the lower right side of the water collecting frame (2) and the drainage pipe (1); the fixed plate (42) is connected to the right inner wall of the water collecting frame (2); the shielding plate (43) is rotatably connected to the left side of the fixed plate (42); the shielding plate (43) is used to shield the liquid outlet pipe (41); the U-shaped plate (44) is slidably connected to the right side of the water collecting frame (2); the U-shaped plate (44) is in contact with the shielding plate (43); The blocking assembly (5) comprises a filter frame (51), a sliding rod (52), a toggle plate (53), a connecting block (54) and a first spring (55). The filter frame (51) is provided inside the water collecting frame (2). The upper part of the filter frame (51) is provided with a sliding rod (52) in a sliding manner. The left side of the sliding rod (52) passes through the water collecting frame (2) and the filter frame (51). The lower side of the sliding rod (52) is connected to seven toggle plates (53). The toggle plates (53) are all in contact with the inner wall of the filter frame (51). The toggle plates (53) are used to clean the filter frame (51). The left side of the sliding rod (52) is provided with connecting blocks (54) on both the front and rear sides. The first spring (55) is connected between the right side of the connecting block (54) and the left side of the water collecting frame (2).

2. A municipal road drainage structure with emergency drainage function according to claim 1, characterized in that: The device also comprises a pulling assembly (6) for driving the sliding rod (52) to move left and right. The pulling assembly (6) comprises a contact plate (61), a reduction motor (62), a rotating rod (63) and a pushing block (64). The left side of the sliding rod (52) is connected to the contact plate (61). The reduction motor (62) is provided on the upper left side of the drainage pipe (1). The output shaft of the reduction motor (62) is connected to the rotating rod (63) via a coupling. The right side surface of the rotating rod (63) is provided with a pushing block (64). The pushing block (64) rotates to contact the contact plate (61).

3. A municipal road drainage structure with emergency drainage function according to claim 2, characterized in that: The invention also comprises a rotating assembly (7) for pulling the shielding plate (43) to rotate and open, the rotating assembly (7) comprising a guide rod (71), a sliding plate (72), a fixed pulley (73) and a pull wire (74), the right side of the water collecting frame (2) is connected to the guide rod (71), the upper part of the guide rod (71) is slidably connected to the sliding plate (72), the U-shaped plate (44) moves to the right and contacts the sliding plate (72), the right inner wall of the water collecting frame (2) is provided with a fixed pulley (73), the left side of the sliding plate (72) is connected to the pull wire (74), the tail end of the pull wire (74) passes through the right wall of the water collecting frame (2) and bypasses the fixed pulley (73) to be connected to the upper side of the shielding plate (43).

4. A municipal road drainage structure with emergency drainage function according to claim 3, characterized in that: The invention also comprises a pulling assembly (8) for driving the U-shaped plate (44) to move left and right. The pulling assembly (8) comprises a guide block (81), a strip plate (82), a rotating shaft (83), a cam (84) and a T-shaped rod (85). The left and right sides of the water collecting frame (2) are both provided with guide blocks (81) symmetrically in front and back. The guide blocks (81) on the same side are both slidably connected with the strip plates (82). The right ends of the strip plates (82) are both connected to the U-shaped plate (44). The left side of the rotating rod (63) is connected with the rotating shaft (83) via a coupling. The rotating shaft (83) is connected with left and right cams (84) in opposite directions via an overrunning clutch. The overrunning clutches between the two cams (84) and the rotating shaft (83) are in opposite directions. The left side of the strip plate (82) is connected with left and right T-shaped rods (85). When the cams (84) rotate, they will contact the T-shaped rods (85) on the same side.

5. A municipal road drainage structure with emergency drainage function according to claim 4, characterized in that: The invention also comprises a limiting assembly (9) for limiting the position of the sliding plate (72). The limiting assembly (9) comprises a support block (91), a wedge block (92), a right-angle plate (93), a second spring (94), a fixing rod (95) and a pushing plate (96). Two front and rear supporting blocks (91) are provided on the right side of the water collecting frame (2). The right part of each supporting block (91) is slidably connected to a wedge block (92). After the wedge blocks (92) slide towards each other, the sliding plate (72) can be limited. The sides of the wedge blocks (92) that are away from each other are connected to the right-angle plate (93). The second spring (94) is connected between the right-angle plate (93) and the supporting block (91) on the same side. At this time, the second spring (94) is in a stretched state. The right side of the strip plate (82) is connected to a fixing rod (95). The lower side of the fixing rod (95) is connected to a pushing plate (96). At this time, the pushing plate (96) is in contact with the right-angle plate (93).

6. A municipal road drainage structure with emergency drainage function according to claim 5, characterized in that: Ten drainage holes are formed on the top cover (3).

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