Intelligent anti-falling concrete well lid

Abstract

The intelligent anti-falling concrete well lid comprises a base, a lid body, an anti-falling net, an annular induction base and an induction ring, the annular induction base is integrally arranged on the inner side wall of a channel in the circumferential direction, and pressure sensors are arranged on the two sides in the annular induction base respectively. The pressure sensor is provided with a detection end extending out of the upper end face of the annular induction base and matched with the induction ring in an induction mode, the induction ring is located above the annular induction base and moves in the channel in the vertical direction, and the interior of the induction ring is used for installing an anti-falling net. A return mechanism for lifting the induction ring when no external force acts on the anti-falling net is arranged between the annular induction seat and the induction ring, and the induction ring descends and triggers the pressure sensor when a person or an object falls into the anti-falling net. By the adoption of the scheme, the intelligent anti-falling concrete well lid can find the damage of the well lid in time.

Description

Technical Field

[0001] The utility model relates to the field of road facilities, in particular to an intelligent anti-falling concrete manhole cover. Background Art

[0002] Concrete manhole covers are a common road facility in cities, mainly used to cover deep wells in roads or communities to prevent people or objects from falling.

[0003] During the use of concrete manhole covers, damage is inevitable. In order to avoid danger after damage, anti-fall nets are often installed on the inside of the concrete manhole covers. Due to the large number of concrete manhole covers, when a concrete manhole cover is damaged, the municipal authorities often cannot discover and repair it in time (especially some concrete manhole covers are in difficult-to-find positions), and the strength of the anti-fall net is limited, and there are still safety hazards in long-term use. In addition, the anti-fall net is installed by hanging the edges of the anti-fall net one by one on multiple hooks arranged circumferentially on the inside of the concrete manhole cover, which poses a risk of unhooking. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an intelligent anti-falling concrete manhole cover which can promptly detect manhole cover damage.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: including a base, a cover body and an anti-fall net, the base is vertically penetrated with a channel, the upper end opening of the channel serves as a wellhead, the cover body is located at the wellhead and closes the wellhead, and also includes an annular sensing seat and an induction ring, the annular sensing seat is circumferentially integrally arranged on the inner side wall of the channel, pressure sensors are respectively arranged on both sides of the annular sensing seat, the pressure sensor is provided with a detection end extending from the upper end surface of the annular sensing seat and cooperating with the induction ring, the induction ring is located above the annular sensing seat and moves vertically in the channel, the inside of the induction ring is used for installing the anti-fall net, a return mechanism is provided between the annular sensing seat and the induction ring for lifting the induction ring when no external force acts on the anti-fall net, and when the anti-fall net falls into a person or an object, the induction ring descends and triggers the pressure sensor.

[0006] By adopting the above technical solution, when an object falls into or a person steps on the anti-fall net, it means that the cover body has been lost or damaged. At this time, the anti-fall net is compressed and drives the induction ring to descend. The induction ring triggers the pressure sensor to generate a pressure signal. The pressure signal can also be transmitted to the control center or nearby administrators via wired or wireless means as an alarm signal. Not only can the damage to the cover body be discovered in time, but also whether there are injuries, thereby shortening the damage time of the cover body and ensuring the personal safety of the personnel. In addition, a return mechanism is added between the annular induction seat and the induction ring. When there is no object or person on the anti-fall net, it is always in the highest position, which effectively avoids the false triggering of the pressure sensor and ensures the accuracy of the alarm signal.

[0007] The utility model is further configured as follows: the return mechanism includes a guide screw, a limit nut and a return spring, the guide screw includes a threaded section, a guide section and a fixed section in sequence from top to bottom, the upper end face of the annular induction seat is circumferentially equidistantly provided with fixing holes fixedly matched with the fixed section, the induction ring is provided with guide holes corresponding to the guide screw one by one and vertically slidingly matched with the guide section, the induction ring is provided with an upper sinking groove located above the guide hole and a lower sinking groove located below the guide hole, the limit nut is threadably matched with the threaded section and is located in the upper sinking groove, the return spring is sleeved on the guide section and compressed between the upper end face of the lower sinking groove and the upper end face of the annular induction seat, and the outer periphery of the induction ring is vertically slidingly matched with the inner wall of the channel.

[0008] By adopting the above technical scheme, the guide section cooperates with the guide hole, and the outer periphery of the induction ring cooperates with the inner wall of the channel to realize vertical stable guidance of the induction seat, and the return spring is compressed between the upper end surface of the sinking groove and the upper end surface of the annular induction seat to realize stable installation and accurate return of the return spring, thereby realizing a reliable return function of the return mechanism. Secondly, during installation, first fix the fixed section and the fixed hole, then put the return spring on the guide section, and then pass the guide section through the guide hole, and finally screw the limit nut on the threaded section. This installation method does not require operation of the guide screw and the return spring during subsequent disassembly and assembly of the induction ring, and disassembly and assembly is simpler. Then, since the anti-fall net is installed on the induction ring, the return spring also provides a buffering force to the anti-fall net, thereby improving the strength of the anti-fall net. In addition, the limit nut can also adjust the highest position of the induction ring according to needs.

[0009] The utility model is further configured as follows: the base is provided with an annular wall surrounding the cover body, an annular solar panel is provided above the annular wall, an inner cavity is provided in the base, a protective shell is provided in the inner cavity, a power supply and a wireless transmission module are provided in the protective shell, and the power supply stores the electric energy generated by the solar panel and supplies power to the wireless transmission module and the pressure sensor.

[0010] By adopting the above technical solution, the solar panels are powered and the wireless transmission module transmits signals, eliminating the inconvenience caused by laying power supply lines and transmission lines, and reasonably utilizing the existing annular wall space to make the solar panels beautiful and harmonious.

[0011] The utility model is further configured as follows: a support step for supporting the cover body is circumferentially arranged on the inner wall of the channel close to the wellhead, a safety gap is arranged between the cover body and the guide screw when the cover body is placed on the support step, and the width of the safety gap is greater than or equal to 10 cm.

[0012] By adopting the above technical solution and the setting of the supporting steps, on the one hand, it is ensured that the cover body stably closes the wellhead, and on the other hand, it avoids hitting the guide screw and causing damage to both, thereby extending the service life.

[0013] The utility model is further configured as follows: the induction ring is made of plastic material, and the edge of the anti-falling net is injection-molded and fixed to the inner wall of the induction ring.

[0014] By adopting the above technical solution, the anti-fall net and the induction ring are integrally injection-molded into one module, which facilitates replacement while ensuring connection strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of a specific implementation of the utility model;

[0016] Figure 2 This is an exploded view of a specific embodiment of the utility model without the cover;

[0017] Figure 3 for Figure 2 A magnified view of middle;

[0018] Figure 4 It is a cross-sectional view of a specific implementation mode of the utility model;

[0019] Figure 5 for Figure 4 Enlarged view of B. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] like Figure 1 — Figure 5 As shown, the utility model discloses an intelligent anti-fall concrete manhole cover, including a base 1, a cover body 2 and an anti-fall net 3. The base 1 is vertically penetrated with a channel 11, and the upper end opening of the channel 11 serves as a manhole. The cover body 2 is located at the manhole and closes the manhole. It also includes an annular sensing seat 4 and an induction ring 5. The annular sensing seat 4 is integrally arranged on the inner side wall of the channel 11 along the circumferential direction. Pressure sensors 6 are respectively arranged on both sides of the annular sensing seat 4. The pressure sensor 6 is provided with a detection end 61 extending from the upper end surface of the annular sensing seat 4 and sensingly cooperating with the induction ring 5. The induction ring 5 is located above the annular sensing seat 4 and moves vertically in the channel 11. The interior of the induction ring 5 is used to install the anti-fall net 3. A return position is provided between the annular sensing seat 4 and the induction ring 5 for lifting the induction ring 5 when no external force acts on the anti-fall net 3. Mechanism, when a person or object falls into the anti-fall net 3, the induction ring 5 drops and triggers the pressure sensor 6. When an object falls into or a person steps on the anti-fall net 3, it means that the cover body 2 has been lost or damaged. At this time, the anti-fall net 3 is pressurized and drives the induction ring 5 to drop. The induction ring 5 triggers the pressure sensor 6 to generate a pressure signal, which can also be transmitted to the control center or nearby administrators via wired or wireless means as an alarm signal. While timely discovering the damage to the cover body 2, it can also be discovered whether there are any injuries, thereby shortening the damage time of the cover body 2 while ensuring the personal safety of the personnel. In addition, a return mechanism is added between the annular induction seat 4 and the induction ring 5. When there is no object or person on the anti-fall net 3, it is always in the highest position, which effectively avoids the false triggering of the pressure sensor 6 and ensures the accuracy of the alarm signal.

[0023] The return mechanism includes a guide screw 41, a limit nut 42 and a return spring 43. The guide screw 41 includes a threaded section 411, a guide section 412 and a fixed section 413 from top to bottom. The upper end surface of the annular sensing seat 4 is equidistantly provided with fixing holes 44 fixedly matched with the fixed section 413 (fixed by cement, knocked in or interference fit) along the circumferential direction. The induction ring 5 is provided with a guide hole 51 corresponding to the guide screw 41 one by one and vertically slidingly matched with the guide section 412. The induction ring 5 is provided with an upper sinking groove 52 located above the guide hole 51 and a lower sinking groove 53 located below the guide hole 51. The limit nut 42 is threadedly matched with the threaded section 411 and is located in the upper sinking groove 52. The return spring 43 is sleeved on the guide section 412 and compressed between the upper end surface of the lower sinking groove 53 and the upper end surface of the annular sensing seat 4. The outer periphery of the induction ring 5 is vertically slidingly matched with the inner wall of the channel 11, and the guide section 412 cooperates with the guide hole 5 1. The outer periphery of the induction ring 5 cooperates with the inner wall of the channel 11 to realize the vertical stable guidance of the induction seat, and the return spring 43 is compressed between the upper end surface of the sinking groove 53 and the upper end surface of the annular induction seat 4 to realize the stable installation and accurate return of the return spring 43, thereby realizing the reliable return function of the return mechanism. Secondly, during installation, first fix the fixing section 413 and the fixing hole 44, then put the return spring 43 on the guide section 412, and then pass the guide section 412 through the guide hole 51, and finally screw the limiting nut 42 on the threaded section 411. This installation method does not require the operation of the guide screw 41 and the return spring 43 during the subsequent disassembly and assembly of the induction ring 5, and the disassembly and assembly is simpler. Then, since the anti-falling net 3 is installed on the induction ring 5, the return spring 43 also provides a buffering force to the anti-falling net 3, thereby improving the strength of the anti-falling net 3. In addition, the limiting nut 42 can also adjust the highest position of the induction ring 5 as needed.

[0024] The base 1 is provided with an annular wall 12 surrounding the cover 2, and an annular solar panel 7 is provided above the annular wall 12. An inner cavity 15 is provided in the base 1, and a protective shell 16 is provided in the inner cavity 15. A power supply 81 and a wireless transmission module 82 are provided in the protective shell 16. The power supply 81 and the wireless transmission module 82 (the wireless transmission module 82 can adopt a zigbee module to transmit signals through adjacent zigbee modules, or a wifi module to transmit through a nearby public network) are generally integrated in the circuit board 8, and can also be used in conjunction with the controller. The controller, pressure sensor, power supply 81 and wireless transmission module 82 are all commercially available modules, and their models and specifications are The grid can be selected as needed and is not described in detail. The power supply 81 stores the electric energy generated by the solar panel 7 and supplies power to the wireless transmission module 82 and the pressure sensor 6. The solar panel 7 supplies power and the wireless transmission module 82 transmits signals, eliminating the inconvenience caused by laying power supply lines and transmission lines, and reasonably utilizing the existing annular wall 12 space to make the solar panel 7 beautiful and harmonious. In addition, the solar panel 7 and the pressure sensor 6 can be connected to the circuit board 8 by threading after holes or grooves are opened on the base 1. The holes or grooves need to be sealed (such as sealant). The protective shell 16 installs the base 1 in the groove and an openable protective cover 161 is provided on the side.

[0025] The inner wall of the channel 11 near the wellhead is circumferentially provided with a support step 13 for supporting the cover body 2. When the cover body 2 is placed on the support step 13, a safety gap 14 is provided between the cover body 2 and the guide screw 41. The width a of the safety gap 14 is greater than or equal to 10 cm. The provision of the support step 13, on the one hand, ensures that the cover body 2 stably closes the wellhead, and on the other hand, avoids hitting the guide screw 41 and causing damage to both, thereby extending the service life.

[0026] The induction ring 5 is made of plastic, and the edge of the anti-fall net 3 is injection-molded and fixed to the inner wall of the induction ring 5. The anti-fall net 3 and the induction ring 5 are integrally injection-molded into a module, which is convenient for replacement while ensuring the connection strength.

Claims

1. An intelligent anti-falling concrete manhole cover, comprising a base, a cover body and an anti-falling net, wherein the base is vertically penetrated with a channel, the upper end of the channel is opened as a manhole, the cover body is located at the manhole and closes the manhole, and is characterized in that: It also includes an annular sensing seat and an induction ring, the annular sensing seat is integrally arranged on the inner wall of the channel along the circumferential direction, pressure sensors are respectively arranged on both sides of the annular sensing seat, the pressure sensor is provided with a detection end extending from the upper end surface of the annular sensing seat and cooperating with the induction ring, the induction ring is located above the annular sensing seat and moves vertically in the channel, the interior of the induction ring is used for installing an anti-fall net, a return mechanism is arranged between the annular sensing seat and the induction ring to lift the induction ring when no external force acts on the anti-fall net, and when the anti-fall net falls into a person or an object, the induction ring drops and triggers the pressure sensor.

2. The intelligent anti-falling concrete manhole cover according to claim 1 is characterized in that: The return mechanism includes a guide screw, a limit nut and a return spring. The guide screw includes a threaded section, a guide section and a fixed section from top to bottom. The upper end face of the annular sensing seat is equidistantly provided with fixing holes fixedly matched with the fixed section along the circumferential direction. The induction ring is provided with guide holes corresponding to the guide screw one by one and vertically slidingly matched with the guide section. The induction ring is provided with an upper sinking groove above the guide hole and a lower sinking groove below the guide hole. The limit nut is threadably matched with the threaded section and is located in the upper sinking groove. The return spring is sleeved on the guide section and compressed between the upper end face of the lower sinking groove and the upper end face of the annular sensing seat. The outer periphery of the induction ring is vertically slidingly matched with the inner wall of the channel.

3. The intelligent anti-falling concrete manhole cover according to claim 1 is characterized in that: The base is provided with an annular wall surrounding the cover body, an annular solar panel is provided above the annular wall, an inner cavity is provided in the base, a protective shell is provided in the inner cavity, a power supply and a wireless transmission module are provided in the protective shell, and the power supply stores the electric energy generated by the solar panel and supplies power to the wireless transmission module and the pressure sensor.

4. The intelligent anti-falling concrete manhole cover according to claim 2 is characterized in that: The inner wall of the channel close to the wellhead is circumferentially provided with a support step for supporting the cover body. When the cover body is placed on the support step, a safety gap is provided between the cover body and the guide screw. The width of the safety gap is greater than or equal to 10 cm.

5. The intelligent anti-falling concrete manhole cover according to claim 1 is characterized in that: The induction ring is made of plastic, and the edge of the anti-falling net is injection-molded and fixed to the inner wall of the induction ring.

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