A structure and method for an urban drainage well cover with a waterproof pressure-release cover.

Abstract

This invention discloses a structure and method for an urban drainage manhole cover with a waterproof pressure-resistant, pop-up cover, belonging to the technical field of drainage manhole covers. The structure and method include a manhole base and a manhole cover, as well as an upper frame. The upper frame is located above the manhole base, and the manhole cover is installed inside the upper frame. A locking cap is provided on the outer surface of the manhole cover, and the locking cap is rotatably connected to the manhole cover via an internal thread. An integrally formed hexagonal shaft block is provided on the outer surface of the locking cap. To address the problem of manhole covers popping up when encountering excessive road water during drainage, where the accumulated water exerts buoyancy on the manhole cover and may cause it to pop up when vehicles pass over it, the soft rubber locking head is deformed under continuous pressure, making its diameter larger than the inlet diameter of the inner ring groove. Under continuous drainage, the soft rubber locking head can maintain a tight lock on the manhole cover, preventing it from separating from the manhole base.

Description

Technical Field

[0001] This invention relates to the field of drainage well cover technology, specifically to a structure and method for an urban drainage well cover with a waterproof pressure-resistant cover. Background Technology

[0002] Chinese patent CN218028102U discloses a drainage well cover structure with anti-clogging function. Rainwater and garbage will squeeze the filter frame to slide along the surface of the support frame, so that the top of the first rack will push the telescopic plate upward, so that the alarm can be activated and the staff can quickly find the blocked well cover and drain the water.

[0003] In the aforementioned patent, if the manhole cover encounters excessive water accumulation on the road during drainage, the accumulated water will have a buoyancy effect on the manhole cover, which may cause the manhole cover to jump off when a vehicle drives over it. Summary of the Invention

[0004] The purpose of this invention is to provide a structure and method for an urban drainage well cover with a waterproof pressure-resistant cover. Under continuous pressure, the soft rubber lock head is squeezed and deformed, making the diameter of the soft rubber lock head larger than the inlet diameter of the inner ring groove. Under continuous drainage, the soft rubber lock head can maintain the locking operation of the well cover, making the well cover unable to separate from the well seat, which can solve the problems in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a city drainage well cover structure with a waterproof pressure-reducing cover, comprising a well base and a well cover, and an upper well frame, wherein the upper well frame is located above the well base, the well cover is installed inside the upper well frame, a locking cap is provided on the outer surface of the well cover, the locking cap is rotatably connected to the well cover by an internal thread, an integrally formed external hexagonal shaft block is provided on the outer surface of the locking cap, a water-flowing side groove is provided between the well cover and the upper well frame, and an integrally formed anchor plate is provided at the bottom of the well base.

[0006] Preferably, the well base is provided with a drainage channel inside, and the water flow side channel is connected to the drainage channel. The water flow side channel is provided with multiple supporting guide columns inside, and the well cover is fitted and connected to the supporting guide columns.

[0007] Preferably, a mesh screen frame is provided below the manhole cover, and the mesh screen frame is connected to the manhole cover by an inner shaft. The mesh screen frame includes a conical mesh bag and a hanging mesh bag. The hanging mesh bag is located on the outside of the bottom of the conical mesh bag. The conical mesh bag and the hanging mesh bag are set as an integral structure, and the conical mesh bag is connected to the inner shaft by bolts.

[0008] Preferably, a counterweight hopper is provided at the bottom of the drainage well, a spring hinge is provided on the outside of the counterweight hopper, a piston shaft is provided above the spring hinge, the piston shaft is telescopically connected to the well base through a tension shaft cavity, and the tension shaft cavity extends to the outside of the support guide column.

[0009] Preferably, one end of the piston rod is provided with a soft rubber lock head, which is connected to the piston rod through a groove. The soft rubber lock head extends into the inner ring groove inside the manhole cover, and the inner ring groove is fitted and connected to the support guide post. The other end of the piston rod is provided with a wedge-shaped end.

[0010] Preferably, the spring hinge includes a limiting bracket and a swing shaft. The swing shaft is rotatably connected to the limiting bracket via a spring mechanism. The limiting bracket is bolted to the well base. Rocker arms are provided on both sides of the swing shaft. A pull rod is provided on both sides of one rocker arm, and the wedge-shaped end extends above the other rocker arm.

[0011] Preferably, a ring frame is provided on the outer side of the top of the counterweight hopper, a hanging lug is provided above the ring frame, the rocker arm is connected to the hanging lug via a pull rod, a water filter is provided at the bottom of the counterweight hopper, and the counterweight hopper is located directly below the mesh screen frame.

[0012] This invention also provides another technical solution: a method for using an urban drainage well cover structure with a waterproof pressure-relief cover, comprising the following steps:

[0013] Step 1: Align the manhole cover with the support guide post inside the water flow channel and install it. After installing the manhole cover, use a handheld device to engage it with the outer hexagonal shaft block and rotate the locking cap to adjust the suspension height of the mesh screen frame. The height of the mesh screen frame should be lower than the water flow channel.

[0014] Step 2: The road water flows into the drainage well through the side channel. The water guide block inside the side channel sends the water into the mesh screen frame. The mesh screen frame filters out leaves and suspended matter in the water. The filtered water falls into the counterweight hopper.

[0015] Step 3: As the water in the counterweight bucket continues to increase, the counterweight bucket sinks and causes the pendulum inside the spring hinge to rotate downward. At this time, the rocker arm on one side of the pendulum shaft contacts the wedge-shaped end at the bottom of the piston rod during the rotation. Under the push of the rocker arm, the piston rod moves upward along the tension shaft cavity.

[0016] Step 4: When the soft rubber locking head at the top of the piston rod enters the inner ring groove inside the manhole cover, it is squeezed and deformed under continuous pressure, making the diameter of the soft rubber locking head larger than the inlet diameter of the inner ring groove. Under continuous drainage, the soft rubber locking head can maintain the locking operation of the manhole cover, making it impossible for the manhole cover to separate from the manhole seat.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] In this invention, water accumulated on the road surface is filtered and falls into a counterweight hopper. As the water in the counterweight hopper increases, the hopper sinks, causing the pendulum inside the spring hinge to rotate downwards. At this time, the rocker arm on one side of the pendulum shaft contacts the wedge-shaped end at the bottom of the piston rod during rotation. Under the push of the rocker arm, the piston rod moves upwards along the tension shaft cavity. When the soft rubber lock head at the top of the piston rod enters the inner ring groove inside the manhole cover, it is squeezed and deformed under continuous pressure, making the diameter of the soft rubber lock head larger than the inlet diameter of the inner ring groove. Under continuous drainage, the soft rubber lock head can maintain the locking operation of the manhole cover, making it impossible for the manhole cover to separate from the manhole seat. Attached Figure Description

[0019] Figure 1 This is the overall front view of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall exploded structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the mesh screen frame structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the overall cross-sectional structure of the present invention;

[0023] Figure 5 for Figure 4 A magnified structural diagram at point A;

[0024] Figure 6 for Figure 4 A magnified structural diagram at point B.

[0025] In the diagram: 1. Manhole base; 2. Manhole cover; 101. Upper manhole frame; 102. Anchor plate; 103. Drainage manhole; 104. Spring hinge; 105. Counterweight bucket; 106. Tension shaft cavity; 107. Piston shaft; 1011. Water flow side channel; 1041. Limiting bracket; 1042. Swing shaft; 1043. Rocker arm; 1044. Tie rod; 1045. Spring mechanism; 1051. Filter port; 1052. Ring frame; 1053. Hanging lug; 1061. Support guide column; 1071. Soft rubber lock head; 1072. Wedge-shaped end; 201. Lock cap; 202. Mesh screen frame; 203. Inner ring groove; 2011. Outer hexagonal shaft block; 2012. Inner shaft rod; 2021. Conical mesh bag; 2022. Hanging plate mesh bag. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] To address the issue of manhole covers jumping off when encountering excessive road water during drainage, where the buoyancy of the water causes the manhole cover to deflect when vehicles pass over it; please refer to... Figure 1-6 This embodiment provides the following technical solution:

[0028] A city drainage manhole cover structure with a waterproof pressure-resistant cover includes a manhole base 1 and a manhole cover 2, and an upper manhole frame 101. The upper manhole frame 101 is located above the manhole base 1. The manhole cover 2 is installed inside the upper manhole frame 101. A locking cap 201 is provided on the outer surface of the manhole cover 2. The locking cap 201 is rotatably connected to the manhole cover 2 via an internal thread. An integrally formed external hexagonal shaft block 2011 is provided on the outer surface of the locking cap 201. A water-flowing side channel 1011 is provided between the manhole cover 2 and the upper manhole frame 101. An integrally formed anchoring base plate 102 is provided at the bottom of the manhole base 1. A drainage well channel 103 is provided inside the manhole base 1. The water-flowing side channel 1011 is connected to the drainage well channel 103. Multiple supporting guide posts 106 are provided inside the water-flowing side channel 1011. 1. The manhole cover 2 is fitted and connected to the support guide column 1061. A mesh screen frame 202 is set below the manhole cover 2. The mesh screen frame 202 is connected to the manhole cover 2 through the inner shaft 2012. The mesh screen frame 202 includes a conical mesh 2021 and a hanging mesh 2022. The hanging mesh 2022 is located on the outside of the bottom of the conical mesh 2021. The conical mesh 2021 and the hanging mesh 2022 are set as an integral structure. The conical mesh 2021 is connected to the inner shaft 2012 by bolts. The manhole cover 2 is aligned with the support guide column 1061 inside the water flow side channel 1011 for installation. After the manhole cover 2 is installed, it is engaged on the outer hexagonal shaft block 2011 using a handheld device, and the suspension height of the mesh screen frame 202 is adjusted by rotating the locking cap 201.

[0029] In this embodiment, the height of the mesh screen frame 202 is lower than that of the drainage ditch 1011. The road water flows into the drainage well 103 through the drainage ditch 1011. The water is then guided into the mesh screen frame 202 by the water guide block inside the drainage ditch 1011. The mesh screen frame 202 is used to filter out leaves and suspended matter in the water.

[0030] In this embodiment, a counterweight hopper 105 is provided at the bottom of the drainage well 103, a spring hinge 104 is provided on the outside of the counterweight hopper 105, a piston shaft 107 is provided above the spring hinge 104, the piston shaft 107 is telescopically connected to the well base 1 through a tension shaft cavity 106, the tension shaft cavity 106 extends to the outside of the support guide post 1061, a soft rubber lock head 1071 is provided at one end of the piston shaft 107, the soft rubber lock head 1071 is connected to the piston shaft 107 through a slot, the soft rubber lock head 1071 extends into the inner ring groove 203 inside the well cover 2, the inner ring groove 203 is fitted and connected to the support guide post 1061, and a wedge-shaped end 1072 is provided at the other end of the piston shaft 107.

[0031] In this embodiment, the locking and engaging operation is achieved through the deformation function of the soft rubber lock head 1071. The soft rubber lock head 1071 needs to be replaced regularly during use to prevent aging and damage.

[0032] In this embodiment, the spring hinge 104 includes a limiting bracket 1041 and a swing shaft 1042. The swing shaft 1042 is rotatably connected to the limiting bracket 1041 through a spring mechanism 1045. The limiting bracket 1041 is bolted to the well base 1. Rocker arms 1043 are provided on both sides of the swing shaft 1042. A pull rod 1044 is provided on both sides of one rocker arm 1043. The wedge-shaped end 1072 extends to the top of the other rocker arm 1043. A ring frame 1052 is provided on the outer side of the top of the counterweight hopper 105. A hanging ear 1053 is provided on the top of the ring frame 1052. The rocker arm 1043 is connected to the hanging ear 1053 through the pull rod 1044. A filter port 1051 is provided at the bottom of the counterweight hopper 105. The counterweight hopper 105 is located directly below the mesh screen frame 202.

[0033] In this embodiment, the accumulated water falls into the counterweight hopper 105. As the water in the counterweight hopper 105 increases, the counterweight hopper 105 sinks and drives the swing shaft 1042 inside the spring hinge 104 to rotate downward. At this time, the rocker arm 1043 on one side of the swing shaft 1042 contacts the wedge-shaped end 1072 at the bottom of the piston rod 107 during the rotation. Under the push of the rocker arm 1043, the piston rod 107 moves upward along the tension shaft cavity 106. When the soft rubber lock head 1071 at the top of the piston rod 107 enters the inner ring groove 203 inside the manhole cover 2, the soft rubber lock head 1071 is squeezed and deformed under continuous pressure, so that the diameter of the soft rubber lock head 1071 is larger than the inlet diameter of the inner ring groove 203. Under continuous drainage, the soft rubber lock head 1071 can maintain the locking operation of the manhole cover 2, so that the manhole cover 2 cannot be separated from the manhole seat 1.

[0034] In this embodiment, when the road surface is no longer continuously flooded, the water outlet 1051 at the bottom of the counterweight hopper 105 continuously discharges the water inside the hopper until the water inside the counterweight hopper 105 is completely discharged. Then, the swing shaft 1042 is reset under the action of the spring mechanism 1045, one end of the soft rubber lock head 1071 loses pressure and returns to its original shape, and the piston shaft 107 drives it to descend together and separate from the manhole cover 2. At this time, the manhole cover 2 can be opened normally.

[0035] Working principle: The manhole cover 2 is installed by aligning it with the support guide post 1061 inside the drainage channel 1011. After the manhole cover 2 is installed, it is engaged with the outer hexagonal shaft block 2011 using a handheld device. The locking cap 201 is rotated to adjust the suspension height of the mesh screen frame 202. The height of the mesh screen frame 202 should be lower than the drainage channel 1011. Road water flows into the drainage well 103 through the drainage channel 1011, cooperating with the water guide block inside the drainage channel 1011. Water is fed into the mesh screen 202, which filters out leaves and suspended matter from the accumulated water. The filtered water falls into the counterweight hopper 105. As the water in the counterweight hopper 105 increases, the counterweight hopper 105 sinks, causing the swing shaft 1042 inside the spring hinge 104 to rotate downwards. At this time, the rocker arm 1043 on one side of the swing shaft 1042 contacts the wedge-shaped end 1072 at the bottom of the piston rod 107 during rotation. Driven by the rocker arm 1043, the piston rod 107 moves upward along the tension shaft cavity 106. When the soft rubber lock head 1071 at the top of the piston rod 107 enters the inner ring groove 203 inside the manhole cover 2, it is squeezed and deformed under continuous pressure, making the diameter of the soft rubber lock head 1071 larger than the inlet diameter of the inner ring groove 203. Under continuous drainage, the soft rubber lock head 1071 can maintain the locking operation of the manhole cover 2, making the manhole cover 2 unable to separate from the manhole seat 1. When there is no continuous water accumulation on the road surface, the water filter port 1051 at the bottom of the counterweight hopper 105 continuously discharges the water in the hopper until the water inside the counterweight hopper 105 is completely discharged. Then, the swing shaft 1042 is reset under the action of the spring mechanism 1045, one end of the soft rubber lock head 1071 loses pressure and returns to its original shape, and the piston rod 107 drives it to descend together and separate from the manhole cover 2. At this time, the manhole cover 2 can be opened normally.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A structure for an urban drainage well cover with a waterproof pressure-resistant cover, comprising a well base (1) and a well cover (2), characterized in that, It also includes an upper well frame (101), which is located above the well base (1). The well cover (2) is installed inside the upper well frame (101). The outer surface of the well cover (2) is provided with a locking cap (201). The locking cap (201) and the well cover (2) are rotatably connected by an internal thread. The outer surface of the locking cap (201) is provided with an integrally formed external hexagonal shaft block (2011). A water-flowing side groove (1011) is provided between the well cover (2) and the upper well frame (101). The bottom of the well base (1) is provided with an integrally formed anchor plate. (102), the well base (1) is provided with a drainage well channel (103) inside, and the water flow side channel (1011) is connected to the drainage well channel (103). The water flow side channel (1011) is provided with multiple support guide columns (1061) inside, and the well cover (2) is fitted to the support guide columns (1061). The bottom of the drainage well channel (103) is provided with a counterweight hopper (105), and the outside of the counterweight hopper (105) is provided with a spring hinge (104). The top of the spring hinge (104) is provided with a piston shaft (107). The piston rod (107) is telescopically connected to the well seat (1) via a tension shaft cavity (106). The tension shaft cavity (106) extends to the outside of the support guide post (1061). One end of the piston rod (107) is provided with a soft rubber lock head (1071). The soft rubber lock head (1071) is connected to the piston rod (107) via a slot. The soft rubber lock head (1071) extends into the inner ring groove (203) inside the well cover (2). The inner ring groove (203) is fitted and connected to the support guide post (1061). The other end of the piston rod (107) is provided with a... The wedge-shaped end (1072) and the spring hinge (104) include a limiting bracket (1041) and a swing shaft (1042). The swing shaft (1042) is rotatably connected to the limiting bracket (1041) through a spring mechanism (1045). The limiting bracket (1041) is bolted to the well base (1). Both sides of the swing shaft (1042) are provided with rocker arms (1043). Both sides of one rocker arm (1043) are provided with a pull rod (1044). The wedge-shaped end (1072) extends above the other rocker arm (1043).

2. The urban drainage well cover structure with a waterproof pressure-relief cover according to claim 1, characterized in that: A mesh screen frame (202) is provided below the manhole cover (2). The mesh screen frame (202) is connected to the manhole cover (2) by an inner shaft (2012). The mesh screen frame (202) includes a conical mesh bag (2021) and a hanging mesh bag (2022). The hanging mesh bag (2022) is located on the outside of the bottom of the conical mesh bag (2021). The conical mesh bag (2021) and the hanging mesh bag (2022) are set as an integral structure. The conical mesh bag (2021) and the inner shaft (2012) are connected by bolts.

3. The urban drainage well cover structure with a waterproof pressure-relief cover according to claim 2, characterized in that: A ring frame (1052) is provided on the outer side of the top of the counterweight hopper (105), and a hanging ear (1053) is provided above the ring frame (1052). The rocker arm (1043) is connected to the hanging ear (1053) through a pull rod (1044). A water filter port (1051) is provided at the bottom of the counterweight hopper (105), and the counterweight hopper (105) is located directly below the mesh screen frame (202).

4. A method of using a city drainage well cover structure with a waterproof pressure-relief cover, implemented based on the city drainage well cover (2) structure with a waterproof pressure-relief cover as described in claim 3, characterized in that, Includes the following steps: Step 1: Align the manhole cover (2) with the support guide post (1061) inside the water flow side channel (1011) and install it. After installing the manhole cover (2), use a handheld device to engage it on the outer hexagonal shaft block (2011) and rotate the locking cap (201) to adjust the suspension height of the mesh screen frame (202). The height of the mesh screen frame (202) should be lower than that of the water flow side channel (1011). Step 2: The road water flows into the drainage well (103) through the side channel (1011). The water is guided into the mesh screen (202) by the water guide block inside the side channel (1011). The mesh screen (202) filters out the leaves and suspended matter in the water. The filtered water falls into the counterweight hopper (105). Step 3: As the water in the counterweight bucket (105) continues to increase, the counterweight bucket (105) sinks and drives the swing shaft (1042) inside the spring hinge (104) to rotate downward. At this time, the rocker arm (1043) on one side of the swing shaft (1042) contacts the wedge-shaped end (1072) at the bottom of the piston rod (107) during the rotation. Under the push of the rocker arm (1043), the piston rod (107) moves upward along the tension shaft cavity (106). Step 4: When the soft rubber lock head (1071) at the top of the piston rod (107) enters the inner ring groove (203) inside the manhole cover (2), the soft rubber lock head (1071) is squeezed and deformed under continuous pressure, so that the diameter of the soft rubber lock head (1071) is larger than the inlet diameter of the inner ring groove (203). Under continuous drainage, the soft rubber lock head (1071) maintains the locking operation of the manhole cover (2), so that the manhole cover (2) cannot be separated from the manhole seat (1).

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