Embedded intelligent anti-opening cement well lid with monitoring function

Abstract

The invention relates to the field of urban road construction and production, in particular to an embedded intelligent anti-opening cement well lid with a monitoring function, the embedded intelligent anti-opening cement well lid comprises a well mouth and a well lid body connected to the well mouth in an embedded mode, an annular sealing air bag is arranged to fill a gap between the well mouth and the well lid body, the sealing performance is improved, and the well lid body is prevented from being opened. The vertical part, the inclined surface part and the horizontal part are designed in the inner cavity of the well mouth, the vertical part provides lateral support for the well lid and limits horizontal displacement, the inclined surface part guides impurities to slide down, blockage and abrasion are reduced, meanwhile, the phenomenon that the balance of the well lid is affected by impurity accumulation is avoided, the horizontal part supports the well lid, and the chip groove is formed between the horizontal part and the inclined surface part. By arranging the high-pressure spraying assembly, when vibration of the well lid exceeds a threshold value, an annular sealing air bag shrinks to promote large-particle impurities to slide down, and high-pressure gas sprays and cleans away the impurities on the surface of the first steel plate, so that impurity accumulation is reduced.

Description

Technical Field

[0001] The invention relates to the field of urban road construction and production, in particular to an embedded intelligent anti-opening cement manhole cover with a monitoring function. Background Art

[0002] In the process of urban development, underground pipeline systems are constantly being built and improved, such as drainage pipes, communication cables, gas pipelines, etc. These pipelines need to be equipped with wellheads for maintenance and inspection. The emergence of manhole covers is to prevent people and objects from accidentally falling into the well, to ensure people's life safety and the normal operation of the city. Manhole covers usually include cement manhole covers and cast iron manhole covers. Cement manhole covers have low cost, high compressive strength and anti-slip effect. On urban roads, intelligent anti-opening cement manhole covers can ensure the safety of pedestrians and vehicles and prevent traffic accidents caused by theft or damage of manhole covers. At the same time, the vibration sensor installed on the cement manhole cover with monitoring function can detect the tiny vibration of the manhole cover and detect abnormal conditions of the manhole cover in time, which can effectively prevent accidents such as pedestrians falling and vehicles getting stuck due to illegal opening of the manhole cover.

[0003] The existing embedded intelligent anti-opening cement manhole covers with monitoring functions have certain defects during use: due to the gap between the manhole cover and the wellhead, when impurities enter the gap, they will form bulges or uneven surfaces in the local area, making the support height of the manhole cover inconsistent at different positions, thus causing the balance to be destroyed. The vibration sensor detects that the manhole cover is in a tilted or unstable state, which will cause the sensor to generate an erroneous signal, which will be misjudged by the vibration sensor as the manhole cover is open, reducing the detection accuracy.

[0004] Therefore, it is necessary to propose an embedded intelligent anti-opening cement manhole cover with monitoring function to solve the above technical problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an embedded intelligent anti-opening cement manhole cover with a monitoring function, which solves the technical problem that there is a gap between the manhole cover and the wellhead, which allows impurities to enter easily, forming an uneven surface that causes the manhole cover support height to be inconsistent and the balance to be destroyed, causing the vibration sensor to misjudge that the manhole cover is open, thereby reducing the detection accuracy.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The technical solution adopted by the present invention to solve the technical problem is: an embedded intelligent anti-opening cement manhole cover with monitoring function, comprising a manhole and a manhole cover embedded and connected to the manhole, a circular groove is provided at the bottom of the manhole cover, and a vertical part, an inclined part and a horizontal part are respectively provided on the inner side of the manhole from top to bottom, the vertical part is used to surround the periphery of the manhole cover, the inclined part is used to allow impurities to quickly slide down from its inclined surface after entering the gap between the manhole and the manhole cover, and the horizontal part is used to support the manhole cover, and the vertical part, the inclined part and the horizontal part of the manhole cover are all in contact with each other at the periphery of the manhole cover;

[0008] There is at least one chip removal groove, which is in the shape of a ring and is opened at the bottom of the wellhead, and is located between the bottom end of the inclined portion and the side of the horizontal portion close to the wellhead, and the chip removal groove is in the shape of a cone as a whole;

[0009] An intelligent sensor is arranged inside the circular groove to detect the vibration degree of the manhole cover;

[0010] The annular sealing airbag has a wear-resistant rubber pad on the outside to fill the gap between the wellhead and the well cover;

[0011] A support member, the number of which is at least one, which is fitted between the vertical portion and the inclined portion of the wellhead, the support member is used to support the wellhead cover, and a groove adapted to the support member is provided at the outer bottom of the annular sealing airbag;

[0012] The high-pressure jet component is arranged inside the circular groove and is used for jetting the vertical part and the inclined part of the wellhead.

[0013] Preferably, a ring-shaped mounting plate ring is installed on the top of the wellhead by bolts, and a first steel plate is installed on the mounting plate ring in the axial direction close to the wellhead and fits on the vertical part and the inclined part of the wellhead, the support member and the first steel plate are fixedly connected, and a second steel plate is installed on the surface side of the manhole cover close to the wellhead, and the annular sealing airbag is sleeved and fixedly connected on the outside of the second steel plate.

[0014] Preferably, the high-pressure injection assembly includes a high-pressure injection machine installed inside the circular groove, a three-way solenoid valve is installed on one side of the high-pressure injection machine through a pipeline, a first gas delivery end of the three-way solenoid valve passes through the inside of the second steel plate through a pipeline, a first gas delivery hole connected to the first gas delivery end pipeline is opened on the side of the vertical part of the second steel plate close to the wellhead, an air connecting hole is opened on the side of the support member corresponding to the first gas delivery hole, a first injection hole connected to the air connecting hole is opened inside the mounting plate ring and the first steel plate, the first injection hole faces the vertical part of the wellhead, the second gas delivery pipe of the three-way solenoid valve passes through the inside of the second steel plate through a pipeline and is connected to the annular sealing airbag, and an exhaust solenoid valve is installed at the bottom of the annular sealing airbag.

[0015] Preferably, the second steel plate is provided with a second injection hole at the top of the annular sealing airbag, and the second injection hole is connected to the first air supply hole. After the annular sealing airbag enters the contracted state, one side of the vertical part of the annular sealing airbag corresponds just below the second injection hole.

[0016] Preferably, the wellhead is located in the horizontal part and has a beveled edge on one side close to the chip groove, and the beveled edge can prevent impurities sliding down from the bevel portion of the wellhead from entering the horizontal part, thereby preventing impurities retained on the horizontal part from affecting the balance of the manhole cover.

[0017] Preferably, a driving motor is installed on one side of the bottom of the manhole cover, and the output end of the driving motor passes through the second steel plate and is installed with a driving gear. A transmission gear is rotatably connected below the second steel plate, and the transmission gear is meshed with the driving gear. A ring-shaped part fixedly connected to the transmission gear is rotatably connected below the second steel plate, and the hypotenuse side of the ring-shaped part close to the horizontal part is set as a bevel, and a micro-brush close to the hypotenuse side is installed on the side of the ring-shaped part located at the bevel, and a sealing cover connected to the driving gear through a bearing is installed below the second steel plate for dust prevention of the driving gear, and the sealing cover and the ring-shaped part are slidably connected.

[0018] Preferably, a sealing gasket is installed on the top of the horizontal part of the wellhead, and a fixing seat rotatably connected to the inner side of the annular member is installed below the second steel plate, and the fixing seat is tightly attached to the top of the sealing gasket.

[0019] Preferably, the sealing gasket is provided with an oblique angle on one side close to the annular member, and the fixing seat is provided with a third injection hole on one side corresponding to the oblique angle, and the third injection hole is connected to the second gas pipeline inside the second steel plate.

[0020] Beneficial effects:

[0021] (1) The present invention provides an annular sealing airbag to fill the gap between the wellhead and the manhole cover, thereby improving the sealing performance and preventing external impurities and rainwater from entering the wellhead. A vertical portion, an inclined portion and a horizontal portion are respectively designed through the inner cavity of the wellhead. The vertical portion provides lateral support for the manhole cover and limits horizontal displacement. The inclined portion guides impurities to slide down, reduces blockage and wear, and prevents impurity accumulation from affecting the balance of the manhole cover. The horizontal portion supports the manhole cover, and a chip removal groove is provided between the horizontal portion and the inclined portion to facilitate the removal of impurities from the chip removal groove, so that the horizontal portion maintains a stable contact with the manhole cover. By providing a high-pressure injection assembly, when the vibration of the manhole cover exceeds a threshold, the annular sealing airbag contracts to cause large particles of impurities to slide down. In addition, the high-pressure gas is used to spray and clean the impurities on the surface of the first steel plate, thereby reducing the accumulation of impurities, allowing the manhole cover to regain uniform support, restore balance and stability, and reduce shaking and tilting problems.

[0022] (2) The present invention is provided with a driving motor, a driving gear, a transmission gear, a ring part and a micro-brush. When the high-pressure injection assembly is started, a series of transmission structures are used to make the micro-brush on the ring part rotate on the bevel, so as to efficiently clean the impurities adhering to the bevel. Whether it is dust or other small particles of impurities, they can be cleaned away by the micro-brush in time to keep the bevel clean. At the same time, the high-pressure gas is ejected from the third injection hole and flows along the bevel at an accelerated speed, which cooperates with the cleaning effect of the micro-brush, making the micro-brush easier and more efficient during the cleaning process.

[0023] (3) The present invention sets the wellhead inclined portion, and the first injection hole and the second injection hole simultaneously inject gas, so that the amount of gas entering the vertical portion is increased, thereby enhancing the impact force of the gas, so that the impurities between the first steel plate and the annular sealing airbag are quickly cleaned, and the efficiency of the entire cleaning process is improved. The chip removal groove has a conical structure and is reasonably located, which can promptly receive the impurities sliding down from the inclined portion. The end with a large opening facilitates the entry of impurities, and the gradually shrinking groove bottom increases the impurity flow rate, further improving the chip removal efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the overall structure of the present invention from another angle;

[0027] Figure 3 It is an exploded view of the overall structure of the present invention;

[0028] Figure 4 A schematic diagram of a wellhead and a well cover of the present invention;

[0029] Figure 5 It is a partial cross-sectional view of the overall structure of the present invention;

[0030] Figure 6 It is a partial cross-sectional view of the wellhead of the present invention;

[0031] Figure 7 for Figure 5 A partial enlarged view of middle A;

[0032] Figure 8 It is a partial cross-sectional view of the manhole cover of the present invention;

[0033] Fig. 9 for Figure 5 A partial enlarged view of B.

[0034] Numbers in the figure:

[0035] 1. Wellhead; 10. Well cover; 11. Chip removal groove; 111. Bevel; 110. Sealing pad; 1101. Fixing seat; 1102. Third injection hole; 12. Intelligent sensor; 13. Annular sealing airbag; 14. Support member; 15. Notch; 16. Mounting plate ring; 161. First steel plate; 17. Second steel plate;

[0036] 2. High-pressure jet assembly; 21. High-pressure jet machine; 22. Three-way solenoid valve; 23. First air delivery hole; 24. Air receiving hole; 25. First jet hole; 26. Second jet hole; 27. Exhaust solenoid valve; 211. Drive motor; 212. Active gear; 213. Transmission gear; 214. Ring member; 215. Micro brush; 216. Sealing cover. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0038] like Figure 1-Figure 3 As shown, an embedded intelligent anti-opening cement manhole cover 10 with monitoring function includes a manhole 1 and the manhole cover 10 embedded and connected to the manhole 1. A circular groove is provided at the bottom of the manhole cover 10, and a vertical part, an inclined part and a horizontal part are respectively provided on the inner side of the manhole 1 from top to bottom. The vertical part is used to surround the periphery of the manhole cover 10, provide lateral support for the periphery of the manhole cover 10, limit the horizontal displacement of the manhole cover 10, make it more stable during use, and not easy to shake or deviate. The inclined part is used to allow impurities to enter the gap between the wellhead 1 and the manhole cover 10 and quickly slide down from its inclined surface, and use gravity to guide the impurities to move downward naturally, avoiding the accumulation of impurities in the gap, thereby reducing the blockage and wear problems between the wellhead 1 and the manhole cover 10 caused by the accumulation of impurities. Used to support the manhole cover 10, the vertical part, the inclined part and the horizontal part of the wellhead 1 are all fitted together on the periphery of the manhole cover 10. There is at least one chip groove 11, which is annular and opened at the bottom of the wellhead 1, and is located between the bottom of the inclined part and the side of the horizontal part close to the wellhead 1. The chip groove 11 has a cone-shaped structure as a whole. This position setting can timely receive impurities sliding down from the inclined part, and the chip groove 11 has a cone-shaped structure, and its larger opening end is close to the inclined part, which is conducive to the smooth entry of impurities into the chip groove 11, and the gradually shrinking groove bottom helps to increase the flow rate of impurities, so that impurities are discharged more quickly, thereby improving the chip removal efficiency. At the same time, it can also prevent impurities from entering the horizontal part, which can block the impurities, keep the horizontal part clean, and improve the balance of the cement manhole cover 10.

[0039] The smart sensor 12 is arranged inside the circular groove to detect the vibration degree of the manhole cover 10. When the manhole cover 10 is subjected to abnormal external force impact (such as being pried by thieves, severe collision of vehicles, etc.), the sensor can sense and record the vibration data in time;

[0040] A wear-resistant rubber pad is arranged on the outer side of the annular sealing airbag 13. The wear-resistant rubber pad has good wear resistance, can resist the friction between the wellhead 1 and the manhole cover 10, and extend the service life of the sealing device. The annular sealing airbag 13 is used to fill the gap between the wellhead 1 and the manhole cover 10, which can improve the sealing between the wellhead 1 and the manhole cover 10 and reduce the gap between the wellhead 1 and the manhole cover 10.

[0041] There is at least one support member 14, which fits between the vertical portion and the inclined portion of the wellhead 1. The support member 14 is used to support the manhole cover 10, thereby enhancing the integrity and stability of the wellhead 1 structure. At the same time, a certain gap is left between the wellhead 1 and the manhole cover 10, so as to facilitate the subsequent inflation of the annular sealing airbag 13 to achieve a sealing effect. At the same time, when the annular sealing airbag 13 contracts, impurities can be prompted to slide down quickly. A groove 15 compatible with the support member 14 is provided at the outer bottom of the annular sealing airbag 13. It is worth noting that a triangular mark corresponding to the groove 15 is installed on the manhole cover 10, and the triangular mark can be used to limit the groove 15 and the support member 14.

[0042] like Figure 3 As shown, a ring-shaped mounting plate ring 16 is installed on the top of the wellhead 1 by bolts, and a first steel plate 161 is installed on the mounting plate ring 16 close to the axial direction of the wellhead 1 to fit the vertical part and the inclined part of the wellhead 1, the support member 14 and the first steel plate 161 are fixedly connected, and a second steel plate 17 is installed on the surface side of the manhole cover 10 close to the wellhead 1, and the annular sealing airbag 13 is sleeved on the outside of the second steel plate 17 and fixedly connected.

[0043] It should be noted that during the use of the manhole cover 10, the annular sealing airbag 13 will constantly contact and rub against the wellhead 1 and the manhole cover 10. The smooth surface of the first steel plate 161 and the second steel plate 17 provides good protection for the annular sealing airbag 13. At the same time, the contact parts of the first steel plate 161 and the second steel plate 17 with the wellhead 1 and the manhole cover 10 can form a relatively tight connection, reducing the gap between the annular sealing airbag 13 and the wellhead 1 and the manhole cover 10, further preventing external impurities, rainwater, etc. from entering the wellhead 1.

[0044] like Figure 3-Figure 7As shown, a high-pressure injection assembly 2 is arranged inside the circular groove and is used to spray the vertical part and the inclined part of the wellhead 1. The high-pressure injection assembly 2 includes a high-pressure injection machine 21 installed inside the circular groove. A three-way solenoid valve 22 is installed on one side of the high-pressure injection machine 21 through a pipeline. The first gas delivery end of the three-way solenoid valve 22 passes through the inside of the second steel plate 17 through a pipeline. A first gas delivery hole 23 connected to the first gas delivery end pipeline is opened on the side of the second steel plate 17 close to the vertical part of the wellhead 1. An air receiving hole 24 is opened on the side of the support member 14 corresponding to the first gas delivery hole 23. A first injection hole 25 connected to the air receiving hole 24 is opened inside the mounting plate ring 16 and the first steel plate 161. The first injection hole 25 faces the vertical part of the wellhead 1. The second gas delivery pipe of the three-way solenoid valve 22 passes through the inside of the second steel plate 17 through a pipeline and is connected to the annular sealing airbag 13. An exhaust solenoid valve 27 is installed at the bottom of the annular sealing airbag 13.

[0045] It should be noted that when the manhole cover 10 is subjected to abnormal external force impact and other circumstances causing the vibration to exceed the preset threshold, the intelligent sensor 12 transmits a signal to the controller. After receiving the signal, the controller first closes the second air supply pipe of the three-way solenoid valve 22, opens the exhaust solenoid valve 27, and the gas in the annular sealing airbag 13 is discharged, the annular sealing airbag 13 shrinks, and large particles of impurities will quickly slide off the surface of the annular sealing airbag 13 and the vertical and inclined portions of the first steel plate 161 during the shrinkage process. Then, the controller opens the three-way solenoid valve 27. The first gas pipeline of 22, the high-pressure jet machine 21 is started, and the high-pressure gas enters the three-way solenoid valve 22 through the pipeline, and then passes through the first gas pipeline. The gas passes through the inside of the second steel plate 17 from the first gas pipeline, flows out from the first gas hole 23, and enters the gas receiving hole 24 of the support 14. Then, the gas passes through the first injection hole 25 connected to the inside of the mounting plate ring 16 and the first steel plate 161, and sprays the high-pressure gas toward one side of the vertical part of the wellhead 1, further promoting the cleaning of impurities on the surface of the first steel plate 161, thereby realizing efficient cleaning of impurities.

[0046] When the vibration of the manhole cover 10 exceeds a threshold value, the gas in the annular sealing airbag 13 is first discharged to cause it to shrink. Large particles of impurities quickly slide off the surface of the airbag and the surface of the first steel plate 161 during the shrinkage process of the airbag, thereby eliminating the influence of the uneven surface formed by the accumulation of impurities on the balance of the manhole cover 10 and avoiding abnormal vibration signals of the manhole cover 10 due to such imbalance. In addition, the impurities on the surface of the first steel plate 161 are sprayed and cleaned by high-pressure gas to reduce the accumulation of impurities on the first steel plate 161 and the second steel plate 17. The manhole cover 10 can regain uniform support, thereby restoring its balance and stability and reducing the shaking and tilting of the manhole cover 10 caused by imbalance.

[0047] like Figure 5 and Figure 8As shown, the second steel plate 17 is located at the top of the annular sealing airbag 13 and is provided with a second injection hole 26, and the second injection hole 26 is connected to the first air supply hole 23. After the annular sealing airbag 13 enters the contracted state, one side of the vertical part of the annular sealing airbag 13 corresponds just below the second injection hole 26.

[0048] It should be noted that, as the annular sealing airbag 13 contracts, one side thereof located at the vertical portion moves to below and corresponds to the second injection hole 26. Since the first gas delivery hole 23 is connected to the second injection hole 26, the gas passes through the first gas delivery hole 23 and enters the second injection hole 26. The high-pressure gas inside the second injection hole 26 is sprayed toward one side of the vertical portion of the annular sealing airbag 13. When the gas enters the vertical portion from the first injection hole 25 and the second injection hole 26 at the same time, due to the setting of the inclined portion of the wellhead 1, the first injection hole 25 and the second injection hole 26 spray gas at the same time, so that the amount of gas entering the vertical portion is increased, thereby enhancing the impact force of the gas, so that the impurities between the first steel plate 161 and the annular sealing airbag 13 are quickly cleaned, which greatly shortens the time for cleaning impurities and improves the efficiency of the entire cleaning process.

[0049] like Figure 6 and Fig. 9 As shown, the wellhead 1 is located in the horizontal part and is provided with a bevel 111 on one side close to the chip groove 11 . The bevel 111 can prevent impurities sliding down from the bevel portion of the wellhead 1 from entering the horizontal part, thereby preventing the impurities retained on the horizontal part from affecting the balance of the manhole cover 10 .

[0050] It should be noted that by setting the bevel 111, in order to prevent small particles of debris from entering the horizontal part, the small particles are guided to move toward the chip groove 11 along the inclination angle of the bevel 111 due to the principle of gravity, effectively preventing impurities from entering the horizontal part and avoiding the occurrence of imbalance of the manhole cover 10.

[0051] like Figure 8-Figure 9 As shown, a driving motor 211 is installed on one side of the bottom of the manhole cover 10, and the output end of the driving motor 211 passes through the second steel plate 17 and is installed with a driving gear 212. A transmission gear 213 is rotatably connected to the bottom of the second steel plate 17, and the transmission gear 213 is meshed with the driving gear 212. A ring member 214 fixedly connected to the transmission gear 213 is rotatably connected to the bottom of the second steel plate 17, and the side of the hypotenuse 111 of the annular member 214 close to the horizontal part is set to an oblique angle, and a micro brush 215 close to one side of the hypotenuse 111 is installed on the side of the annular member 214 located at the oblique angle, and a sealing cover 216 connected to the driving gear 212 through a bearing is installed below the second steel plate 17 for dust prevention of the driving gear 212, and the sealing cover 216 and the annular member 214 are slidably connected.

[0052] It should be noted that when the high-pressure injection assembly 2 is started, the controller simultaneously starts the drive motor 211, and its output end drives the active gear 212 to rotate. As the active gear 212 rotates, the transmission gear 213 starts to rotate. Since the transmission gear 213 is fixedly connected to the annular member 214, the rotation of the transmission gear 213 further drives the annular member 214 to rotate synchronously. The rotation of the annular member 214 drives the micro-brush 215 to rotate along the bevel 111. The impurities adhering to the bevel 111 can be cleaned by the micro-brush 215. At the same time, when the micro-brush 215 is not used, small particles of impurities can be further prevented from entering the horizontal part of the wellhead 1, and the dust and impurities adhering to the bevel 111 can be effectively cleaned to prevent the impurities from forming hard material accumulation on the bevel 111. Through regular cleaning of the micro-brush 215, it is ensured that the bevel 111 always remains relatively smooth and flat, so that the manhole cover 10 can be stably placed on the wellhead 1 to maintain its balance.

[0053] like Fig. 9 As shown, a sealing gasket 110 is installed on the top of the horizontal part of the wellhead 1 , and a fixing seat 1101 rotatably connected to the inner side of the annular member 214 is installed below the second steel plate 17 , and the fixing seat 1101 is tightly attached to the top of the sealing gasket 110 .

[0054] It should be noted that by providing the fixing seat 1101 and the sealing gasket 110, on the one hand, dust is effectively prevented from entering the horizontal part of the wellhead 1, thereby protecting the environment inside the wellhead 1; on the other hand, the high-pressure gas can more forcefully blow impurities in the gap between the wellhead 1 and the manhole cover 10 toward the chip groove 11, so that the impurities can be cleaned out of the wellhead 1 more quickly and thoroughly.

[0055] like Figure 8-Figure 9 As shown, the sealing gasket 110 is provided with an angled surface on one side close to the annular member 214 , and the fixing seat 1101 is provided with a third injection hole 1102 on one side corresponding to the angled surface. The third injection hole 1102 is connected to the second gas pipeline inside the second steel plate 17 .

[0056] It should be noted that when gas passes through the first gas delivery hole 23, a part of the gas is ejected from the inside of the third injection hole 1102. The position design of the third injection hole 1102 enables the gas to be ejected in a specific direction and angle, which is exactly toward the bevel 111, so that in the process of the micro-brush 215 cleaning the bevel 111, the high-pressure gas is ejected from the third injection hole 1102 and accelerated along the bevel 111, cooperating with the cleaning effect of the micro-brush 215, making the micro-brush 215 easier and more efficient during the cleaning process.

[0057] The working principle of the present invention is as follows: when the embedded intelligent anti-opening cement manhole cover 10 with monitoring function is used, when the intelligent sensor 12 detects that the vibration of the manhole cover 10 exceeds the preset threshold, the signal is transmitted to the controller, and the controller first closes the second air supply pipe of the three-way solenoid valve 22, opens the exhaust solenoid valve 27, and discharges the gas in the annular sealing airbag 13, and the airbag contracts. During the contraction of the airbag, large particles of impurities quickly slide down from its surface and the vertical part and inclined part of the first steel plate 161, eliminating the influence of impurity accumulation on the balance of the manhole cover 10. Then, the controller The device opens the first gas pipe of the three-way solenoid valve 22, starts the high-pressure jet 21, and the high-pressure gas enters the three-way solenoid valve 22 through the pipeline, and then passes through the second steel plate 17 through the first gas pipe, flows out from the first gas delivery hole 23, enters the gas receiving hole 24 of the support 14, and then sprays the high-pressure gas toward the side of the vertical part of the wellhead 1 through the first spray hole 25 inside the mounting plate ring 16 and the first steel plate 161, pushing the impurities on the surface of the first steel plate 161 to be cleaned. When the annular sealing airbag 13 shrinks, the side of its vertical part is located below the second spray hole 26. After passing through the first gas delivery hole 23, the gas enters the second spray hole 26, and the high-pressure gas is sprayed from the inside of the second spray hole 26 to the side of the vertical part of the annular sealing airbag 13. When the gas enters the vertical part from the first spray hole 25 and the second spray hole 26 at the same time, it is further accelerated due to the diversion effect of the inclined surface of the wellhead 1, increasing the amount of gas entering the vertical part, enhancing the gas impact force, so that the impurities between the first steel plate 161 and the annular sealing airbag 13 are quickly cleaned;

[0058] The output end of the driving motor 211 drives the active gear 212 to rotate, the active gear 212 drives the transmission gear 213, and the transmission gear 213 drives the ring member 214 fixedly connected to the ring member 214 to rotate synchronously. The micro-brush 215 on the bevel side of the ring member 214 rotates back and forth on the bevel 111 to clean the impurities adhering to the bevel 111, prevent the impurities from forming hard material accumulation on the bevel 111, and maintain the balance of the manhole cover 10. When gas passes through the first gas transmission hole 23, part of the gas is ejected from the third injection hole 1102 towards the bevel 111, cooperating with the cleaning action of the micro-brush 215, making the cleaning of the micro-brush 215 easier and more efficient, and further improving the cleaning effect of the bevel 111.

[0059] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. An embedded intelligent anti-opening cement manhole cover with monitoring function, comprising a manhole (1) and a manhole cover (10) embedded and connected to the manhole (1), characterized in that; The bottom of the manhole cover (10) is provided with a circular groove, and the inner side of the manhole (1) is provided with a vertical portion, an inclined portion and a horizontal portion from top to bottom, respectively. The vertical portion is used to surround the periphery of the manhole cover (10), the inclined portion is used to allow impurities to quickly slide down from its inclined surface after entering the gap between the manhole cover (1) and the manhole cover (10), and the horizontal portion is used to support the manhole cover (10). The vertical portion, the inclined portion and the horizontal portion of the manhole cover (1) are all in contact with the periphery of the manhole cover (10); There is at least one chip removal groove (11) in a ring shape and is opened at the bottom of the wellhead (1) and is located between the bottom end of the inclined portion and the side of the horizontal portion close to the wellhead (1). The chip removal groove (11) is a cone-shaped structure as a whole; An intelligent sensor (12) is arranged inside the circular groove and is used to detect the vibration level of the manhole cover (10); An annular sealing airbag (13) is provided with a wear-resistant rubber pad on the outside thereof, and is used to fill the gap between the wellhead (1) and the well cover (10); There is at least one support member (14), which is fitted between the vertical portion and the inclined portion of the wellhead (1), and the support member (14) is used to support the wellhead cover (10). The outer bottom of the annular sealing airbag (13) is provided with a notch (15) adapted to the support member (14); A high-pressure jet assembly (2) is arranged inside the circular groove and is used to jet the vertical part and the inclined part of the wellhead (1).

2. According to claim 1, an embedded intelligent anti-opening cement manhole cover with monitoring function, characterized in that; A ring-shaped mounting plate ring (16) is installed on the top of the wellhead (1) by bolts, and a first steel plate (161) is installed on the mounting plate ring (16) close to the axial direction of the wellhead (1) and is fitted on the vertical part and the inclined part of the wellhead (1). The support member (14) and the first steel plate (161) are fixedly connected, and a second steel plate (17) is installed on the surface side of the wellhead (1) close to the wellhead (1), and the annular sealing airbag (13) is sleeved on the outside of the second steel plate (17) and is fixedly connected.

3. An embedded intelligent anti-opening cement manhole cover with monitoring function according to claim 1 or 2, characterized in that; The high-pressure injection assembly (2) comprises a high-pressure injection machine (21) installed inside the circular groove, a three-way solenoid valve (22) is installed on one side of the high-pressure injection machine (21) through a pipeline, a first gas transmission end of the three-way solenoid valve (22) passes through the inside of the second steel plate (17) through a pipeline, a first gas transmission hole (23) connected to the first gas transmission end pipeline is opened on one side of the vertical part of the second steel plate (17) close to the wellhead (1), and the support member (14) corresponds to the first gas transmission hole (23). 3), a gas receiving hole (24) is provided on one side of the mounting plate ring (16) and the first steel plate (161), a first injection hole (25) connected to the gas receiving hole (24) is provided inside the mounting plate ring (16) and the first steel plate (161), the first injection hole (25) faces the vertical part of the wellhead (1), the second gas supply pipe of the three-way solenoid valve (22) passes through the inside of the second steel plate (17) through a pipeline and is connected to the annular sealing airbag (13), and an exhaust solenoid valve (27) is installed at the bottom of the annular sealing airbag (13).

4. The embedded intelligent anti-opening cement manhole cover with monitoring function according to claim 2, characterized in that; The second steel plate (17) is provided with a second injection hole (26) at the top of the annular sealing airbag (13), and the second injection hole (26) is connected to the first air delivery hole (23). After the annular sealing airbag (13) enters the contracted state, one side of the vertical portion of the annular sealing airbag (13) is located just below the second injection hole (26).

5. The embedded intelligent anti-opening cement manhole cover with monitoring function according to claim 1, characterized in that; The wellhead (1) is located in the horizontal part and is provided with a bevel (111) on one side close to the chip removal groove (11). The bevel (111) can prevent impurities sliding down from the bevel portion of the wellhead (1) from entering the horizontal part, thereby preventing impurities retained on the horizontal part from affecting the balance of the wellhead cover (10).

6. The embedded intelligent anti-opening cement manhole cover with monitoring function according to claim 5, characterized in that; A driving motor (211) is installed on one side of the bottom of the manhole cover (10); an output end of the driving motor (211) passes through a second steel plate (17) and is installed with a driving gear (212); a transmission gear (213) is rotatably connected to the bottom of the second steel plate (17); the transmission gear (213) and the driving gear (212) are meshed; a ring member (214) fixedly connected to the transmission gear (213) is rotatably connected to the bottom of the second steel plate (17); a side of the ring member (214) close to the hypotenuse (111) of the horizontal portion is set to an oblique angle; a micro brush (215) is installed on the side of the annular member (214) located at the oblique angle and is closely attached to one side of the hypotenuse (111); a sealing cover (216) connected to the driving gear (212) via a bearing is installed below the second steel plate (17) for dust prevention of the driving gear (212); the sealing cover (216) and the annular member (214) are slidably connected.

7. The embedded intelligent anti-opening cement manhole cover with monitoring function according to claim 6, characterized in that; A sealing gasket (110) is installed at the top of the horizontal part of the wellhead (1), and a fixing seat (1101) is installed below the second steel plate (17) and is rotatably connected to the inner side of the annular member (214), and the fixing seat (1101) is tightly attached to the top of the sealing gasket (110).

8. The embedded intelligent anti-opening cement manhole cover with monitoring function according to claim 7, characterized in that; The sealing gasket (110) is provided with an oblique angle on one side close to the annular member (214), and the fixing seat (1101) is provided with a third injection hole (1102) on the side corresponding to the oblique angle, and the third injection hole (1102) is connected to the second gas pipeline inside the second steel plate (17).

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