A manhole cover casting and coding device

Abstract

This invention provides a manhole chamber casting letter marking and encoding device, belonging to the technical field of manhole chamber casting letter marking. It includes a frame, a robotic arm, and an encoding component. The frame is mounted on the upper part of the manhole chamber, and its position is adjustable. The robotic arm is connected to the frame and has a working end that can move and adjust in multiple directions. A driver is installed on the frame, and the driver's power output end is connected to the robotic arm for driving its operation. The encoding component is connected to the frame and can extend into the manhole chamber. Its upper end is connected to the robotic arm's working end. The encoding component is used to mark and encode the manhole chamber. The encoding position and writing trajectory of the encoding component in the chamber are adjusted by the robotic arm. The manhole chamber casting letter marking and encoding device provided by this invention has the technical advantages of facilitating manhole chamber encoding operations, providing clear and durable encoding, preventing errors and confusion, ensuring easy identification, and preventing encoding from weathering and discoloration.

Description

Technical Field

[0001] This invention belongs to the technical field of manhole marking technology, and more specifically, relates to a manhole marking encoding device. Background Technology

[0002] Inspection wells, serving as a crucial link in existing urban drainage pipe networks, are installed within these networks to facilitate regular inspection, cleaning, and unblocking of the pipes. However, the external markings on inspection wells lack systematic explanation. Current inspection wells are typically made of plastic, brick, or concrete modules, and these technologies suffer from the following shortcomings:

[0003] 1. Brick inspection wells are constructed on-site. Due to the material and structural reasons, prefabrication is not possible, and detailed, clear and durable inspection well chamber identification and coding instructions cannot be provided.

[0004] 2. Concrete modular inspection wells and plastic inspection wells can be prefabricated in the factory and transported to the construction site for installation. However, there is no systematic identification and coding instruction, which makes it easy to confuse and make it difficult to distinguish and select the correct ones during the prefabrication and on-site installation of inspection wells.

[0005] 3. The identification codes for plastic inspection wells cannot be made permanent, especially since the inspection wells are installed on the ground. Over time, the codes will weather and change color.

[0006] In summary, the existing technology for marking and coding manholes is not easy to operate, and problems such as unclear and unsustainable coding and easy confusion and misidentification of markings are prone to occur. Summary of the Invention

[0007] The purpose of this invention is to provide a manhole marking and encoding device, which aims to solve the technical problem of difficulty in marking and encoding manholes.

[0008] To achieve the above objectives, the technical solution adopted by the present invention is: to provide a manhole casting marking and encoding device, comprising:

[0009] The frame is erected at the top of the inspection well chamber, and its position can be moved and adjusted.

[0010] A robotic arm, connected to the frame, has a working end that can move and adjust in multiple directions. A driver is provided on the frame, and the power output end of the driver is connected to the robotic arm and used to drive the robotic arm to operate.

[0011] The coding component is connected to the frame and can extend into the manhole chamber. Its upper end is connected to the working end of the robot arm. The coding component is used to identify and code the manhole chamber. The coding position and writing trajectory of the coding component in the manhole chamber are adjusted by means of the robot arm.

[0012] In one possible implementation, a control panel connected to the frame and electrically connected to the robotic arm is also included. The control panel is used to control the operation of the robotic arm and instruct the encoding component to encode at different positions.

[0013] In one possible implementation, the control panel is electrically connected to a wireless communication module, which is used to establish a wireless communication connection with external devices and send signals. The well chamber casting marking encoding device also includes a mobile terminal wirelessly connected to the control panel, which is used to remotely control the operation of the robotic arm and the encoding component.

[0014] In one possible implementation, the frame includes a lower frame, an adjusting rod, and an upper frame. The robotic arm is connected to the upper frame. The upper end of the lower frame has multiple internally threaded holes along the vertical direction, and the lower end of the upper frame has multiple internally threaded holes along the vertical direction. The internally threaded holes of the lower frame and the internally threaded holes of the upper frame have opposite thread directions. The adjusting rod has externally threaded holes with opposite directions at both ends. The adjusting rod is vertically positioned and its two ends are screwed to the internally threaded holes of the upper frame and the lower frame, respectively. Tightening the adjusting rod is used to adjust the distance between the upper frame and the lower frame, thereby adjusting the height of the robotic arm and the coding assembly.

[0015] In one possible implementation, the upper end of the frame is provided with a hanging assembly for suspending the coding component. When the coding component is not in use, the robot arm is detached from the coding component, and the coding component is connected to the coding component through the hanging assembly, which can suspend the coding component to form a free-suspension state. At this time, manually pushing the coding component can make the coding component perform identification coding in the inspection well chamber.

[0016] In one possible implementation, the encoding component includes:

[0017] The rotating shaft is horizontally positioned and rotatably connected to the working end of the robotic arm, allowing it to rotate circumferentially within a vertical plane.

[0018] The telescopic column has its upper end connected to the rotating shaft and its lower end facing the inspection well chamber, and has the freedom to extend and retract radially along the rotating shaft;

[0019] The pen barrel has its upper end inserted into the lower end of the telescopic rod with an adjustable insertion depth, and its lower end used to contact the inspection well chamber. The pen barrel is used to write codes on the inspection well chamber markings by means of the movement adjustment of the working end of the robotic arm. The writing height of the pen barrel is adjusted by means of the telescopic column. The pen barrel contains paint, which is used to write on the inspection well chamber and form codes.

[0020] In one possible implementation, the encoding component further includes a container holding paint, one end of which is connected to a pipe and the other end of which is connected to the interior of the pen barrel. A valve is provided on the pipe for conveying paint into the pen barrel, and the valve is used to control the amount of paint conveyed.

[0021] In one possible implementation, the robotic arm's working end is provided with a buffer platform, which has a degree of freedom to elastically extend and retract vertically. The upper end of the buffer platform is connected to the robotic arm's working end, and the lower end is rotatably connected to the rotating shaft. The buffer platform is used to buffer the downward pressure of the robotic arm on the inspection well chamber when the robotic arm drives the coding component to move downward.

[0022] In one possible implementation, the bottom of the buffer platform is provided with multiple casters, which are used to support the buffer platform to move in any direction above the inspection well chamber. The buffer platform is used to adjust the writing position of the pen during movement.

[0023] In one possible implementation, a roller is coaxially sleeved on the outer wall of the rotating shaft, and an arc-shaped slide rail is fixedly mounted on the outer wall of the roller. The arc-shaped slide rail is arranged along the outer circumference of the roller, and an arc-shaped slider is slidably connected to the arc-shaped slide rail. The outer end of the arc-shaped slider is hinged to the upper end of the telescopic column. The telescopic column can rotate in the radial plane of the roller, and its position after rotation can be limited by a set screw screwed on the arc-shaped slider. The rotation of the telescopic column is used to adjust the writing position, direction, or height of the pen.

[0024] The beneficial effects of the manhole marking and coding device provided by this invention are as follows: Compared with the prior art, the manhole marking and coding device of this invention includes a frame, a robotic arm, and a coding component. The frame is mounted on the upper end of the manhole, and its position can be moved and adjusted. The robotic arm is connected to the frame and has a working end that can be moved and adjusted in multiple directions. A driver is provided on the frame, and the power output end of the driver is connected to the robotic arm and used to drive the robotic arm to operate. The coding component is connected to the frame and can extend into the manhole. Its upper end is connected to the working end of the robotic arm. The coding component is used to mark and code the manhole. The coding position and writing trajectory of the coding component in the manhole are adjusted with the help of the robotic arm. This solves the technical problem that the marking and coding of manholes is not easy to operate. It has the technical effects of easy operation and construction of manhole marking and coding, clear and durable coding, not easy to be confused or misidentified, easy to distinguish, and the coding is not easy to weather or discolor. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of the manhole casting and coding device provided in an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of the manhole chamber marking and coding device provided in an embodiment of the present invention in the state of marking and coding the manhole chamber.

[0028] Figure 3 This is a schematic diagram showing the encoded letter markings of a sediment-type inspection well chamber after being processed by the manhole chamber casting marking encoding device provided in this embodiment of the invention.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Frame; 11. Lower frame; 12. Adjusting rod; 13. Upper frame; 2. Robotic arm; 3. Encoding component; 31. Rotating shaft; 32. Telescopic column; 33. Pen barrel; 34. Box; 35. Pipe; 36. Valve; 37. Roller; 38. Arc-shaped slide rail; 39. Arc-shaped slider; 391. Set screw; 4. Driver; 5. Control panel; 6. Mobile terminal; 7. Hanging assembly; 8. Buffer platform; 81. Elastic element; 82. Caster wheel; 9. Photovoltaic power supply component. Detailed Implementation

[0031] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0032] Please refer to the following: Figures 1 to 3 The present invention will now describe the manhole marking and coding device provided by the present invention. The manhole marking and coding device includes a frame 1, a robotic arm 2, and a coding component 3. The frame 1 is mounted on the upper end of the manhole, and its position is adjustable. The robotic arm 2 is connected to the frame 1 and has a working end that can be adjusted in multiple directions. A driver 4 is mounted on the frame 1, and the power output end of the driver 4 is connected to the robotic arm 2 and used to drive the robotic arm 2. The coding component 3 is connected to the frame 1 and can extend into the manhole. Its upper end is connected to the working end of the robotic arm 2. The coding component 3 is used to mark and code the manhole. The coding position and writing trajectory of the coding component 3 in the manhole are adjusted by means of the robotic arm 2.

[0033] The manhole marking and coding device provided by this invention solves the technical problem of the difficulty in operating the manhole marking and coding of manholes compared with the prior art. It has the technical effects of easy operation and construction of manhole marking and coding, clear and durable coding, not easy to be confused or disordered, easy to distinguish, and the coding is not easy to weather and discolor.

[0034] The driver 4 includes at least one motor or geared motor, capable of driving the joints or motion mechanisms of the robotic arm 2. Using the device of this invention, the cast characters on the manhole chamber can be identified and encoded. Different styles of markings and codes can be edited and written for different locations and types of manholes. Such markings are designed specifically for the manhole; therefore, the code will be different for another manhole. That is, each manhole chamber corresponds to a unique code. In this embodiment, the robotic arm 2 uses existing robotic arms or mechanical hands, capable of moving and adjusting the working end in different directions and dimensions. The cooperation between the robotic arm 2 and the encoding component 3 enables the encoding component 3 to write cast characters on the manhole chamber, identifying a unique code. This code then represents the style of this manhole chamber. The encoding information output by the encoding component 3 can be manually controlled; that is, the robotic arm 2 can be manually controlled to drive the encoding component 3, thus enabling the writing of cast characters and the identification of codes on the manhole chamber. By manually controlling the robotic arm 2 to move to different positions, the coded trajectory can be written, similar to a pencil writing on paper. Furthermore, the position of the frame 1 can be moved; by adjusting the position of the frame 1 according to the actual location of the cast characters, it is possible to write the cast characters and label the code in different positions.

[0035] In some embodiments, please refer to Figures 1 to 3 The manhole marking and coding device also includes a control panel 5 connected to the frame 1 and electrically connected to the robotic arm 2. The control panel 5 controls the operation of the robotic arm 2 and instructs the coding component 3 to perform coding at different positions. The control panel 5 controls the operation of the robotic arm 2, which in turn controls the operation of the coding component 3 to perform the marking and coding of the manhole markings. Operators only need to operate the control panel 5. Specifically, the control panel 5 has multiple adjustment buttons. By properly manipulating these buttons, the operation of the robotic arm 2 can be controlled to complete the marking and coding operation.

[0036] To enable remote operation of the robotic arm 2, or to achieve synchronized control with the control panel 5, in some embodiments, please refer to... Figures 1 to 3 The control panel 5 is electrically connected to a wireless communication module, which is used to establish wireless communication with external devices and send signals. The manhole marking and coding device also includes a mobile terminal 6 wirelessly connected to the control panel 5. The mobile terminal 6 is used to remotely control the operation of the robotic arm 2 and the coding component 3. The mobile terminal 6 has the same function as the control panel 5, both used to control the operation of the robotic arm 2. The advantage of setting up the mobile terminal 6 is that it enables remote operation, allowing workers to operate without being close to the robotic arm 2, and to reasonably control the marking and coding of the manhole marking and coding. If you want to control the robotic arm 2 to write Arabic numerals, you can operate the mobile terminal 6 or the control panel 5 to reasonably control the movement trajectory of the robotic arm 2's working end, and it can write the desired characters on the manhole marking and coding device as if it were automatic.

[0037] Specifically, the mobile terminal 6 uses existing technology products and can achieve remote communication with the control panel 5 through 4G or other communication methods.

[0038] In some embodiments, please refer to Figures 1 to 3The frame 1 includes a lower frame 11, an adjusting rod 12, and an upper frame 13. The robot arm 2 is connected to the upper frame 13. The upper end of the lower frame 11 has multiple internal threaded holes along the vertical direction, and the lower end of the upper frame 13 has multiple internal threaded holes along the vertical direction. The internal threaded holes of the lower frame 11 and the internal threaded holes of the upper frame 13 have opposite thread directions. The adjusting rod 12 has external threads with opposite directions at both ends. The adjusting rod 12 is vertically arranged and its two ends are screwed to the internal threaded holes of the upper frame 13 and the lower frame 11, respectively. Twisting the adjusting rod 12 is used to adjust the distance between the upper frame 13 and the lower frame 11, thereby adjusting the height of the robot arm 2 and the coding component 3. To adjust the height of the robotic arm 2 or the coding component 3, you can first adjust the adjusting rod 12. Of course, this can be achieved by adjusting the height of the working end of the robotic arm 2. At this time, the adjustment of the adjusting rod 12 can be regarded as "coarse adjustment" and the adjustment of the robotic arm 2 can be regarded as "fine adjustment". After the height and position of the frame 1 are adjusted, the height and position of the working end of the robotic arm 2 can be adjusted through the control panel 5, thereby enabling the adjustment of the running trajectory of the coding component 3 and completing the writing of the cast letter marking code on the inspection well chamber.

[0039] Specifically, rotating the adjusting rod 12 clockwise increases the distance between the upper frame 13 and the lower frame 11; conversely, rotating it counterclockwise decreases the distance. The frame 1 includes four pillars, each with a corresponding adjusting rod 12. It is important to note that multiple adjusting rods 12 can be adjusted simultaneously.

[0040] In some embodiments, please refer to Figures 1 to 3 The upper part of the upper frame 13 is equipped with a hanging component 7 for suspending the coding component 3. When the coding component 3 is not in use, the robot arm 2 is detached from the coding component 3, and the hanging component 7 connects to the coding component 3 and suspends it, forming a free-suspension state. At this time, manually pushing the coding component 3 allows it to perform marking and coding in the inspection well chamber. When the robot arm 2 is not in use, it can be separated from the coding component 3, meaning that the operation of the robot arm 2 will not affect the coding component 3. At this time, the coding component 3 can be manually pushed to different positions, following the trajectory of the pre-written casting characters, to cast characters on the inspection well chamber, finally forming the marking code. That is, this invention can control the casting and marking of characters using the robot arm 2, or it can write the casting and marking codes by manually operating the coding component 3. There is at least one set of hanging components 7, which can uniformly control the up and down movement of the coding component 3. When multiple sets are set, they should be arranged symmetrically to ensure that the coding component 3 is subjected to uniform force and maintains balance and stability during up and down movement.

[0041] Specifically, the suspension assembly 7 includes a winch mounted on the upper end of the upper frame 13, with the power output end of the winch connected to the upper end of the coding assembly 3 via a rope. The suspension assembly 7 can pull the coding assembly 3, which can move in any direction, thereby completing the casting and marking coding operation.

[0042] In some embodiments, please refer to Figures 1 to 3 The coding component 3 includes a rotating shaft 31, a telescopic column 32, and a pen 33. The pen 33 is hollow and can be used to hold paint. The rotating shaft 31 is horizontally positioned and rotatably connected to the working end of the robotic arm 2, allowing it to rotate circumferentially in the vertical plane. The upper end of the telescopic column 32 is connected to the rotating shaft 31, and the lower end faces the inspection well chamber, allowing it to extend and retract radially along the rotating shaft 31. The upper end of the pen 33 is inserted into the lower end of the telescopic column with an adjustable insertion depth, and the lower end is used to contact the inspection well chamber. The pen 33 is used to write codes on the inspection well chamber markings by means of the movement adjustment of the working end of the robotic arm 2. The writing height of the pen 33 is adjusted by means of the telescopic column 32. The pen 33 contains paint, which is used to write codes on the inspection well chamber. The rotating shaft 31 can rotate, and the telescopic column 32 can extend and retract, thus providing the pen 33 with more freedom of movement in different directions, thereby more smoothly completing the operation of casting the marking codes. The pen barrel 33 can be inserted into the manhole of the inspection well or placed outside the manhole of the inspection well. Regardless of its position, it can perform the casting and coding operation of the manhole of the inspection well. The lower end of the pen barrel 33 is equipped with a pen ball. The paint can be applied to the manhole of the inspection well through the pen ball to form the casting.

[0043] A rack is provided on one side of the pen barrel 33 along its height direction. A groove extending vertically inward is opened at the lower end of the telescopic column 32. The upper end of the pen barrel 33 can be placed in the groove. A gear is rotatably connected to one side of the groove. The gear meshes with the rack for transmission. By manually driving the gear to rotate from the outside of the telescopic column 32, the rack moves up and down accordingly, thereby adjusting the height of the pen barrel 33. A limiting screw is provided on the telescopic column 32 to limit the rotation of the gear. After the limiting screw abuts against the gear, it can limit the gear, thereby restricting the height of the pen barrel 33.

[0044] Specifically, for details on how the pen barrel 33 is cast or written, please refer to the existing technical patent document CN107350447A, which discloses a method and device for casting characters on the end face of a cast pipe socket. The document discloses the technical means of casting characters on the end face of a cast pipe socket. This invention also refers to and uses the casting process or steps in the existing technical document, thereby completing the character marking and coding operation of the manhole.

[0045] In some embodiments, please refer to Figures 1 to 3The coding component 3 also includes a container 34 containing paint. One end of the container 34 is connected to a pipe 35, and the other end of the pipe 35 is connected to the inside of the pen barrel 33. A valve 36 is installed on the pipe 35, which is used to deliver paint into the pen barrel 33, and the valve 36 is used to control the amount of paint delivered. The container 34 contains a large amount of paint, allowing for a continuous supply of paint to the pen barrel 33, facilitating continuous writing of the cast characters and coding. By properly controlling the opening and closing of the valve 36, the flow rate of paint can be controlled, thus preventing the pen barrel 33 from overflowing or running out of paint, achieving reasonable control over paint delivery. A cover is provided at the top of the container 34; when the paint in the container 34 is low, paint can be added by opening the cover.

[0046] In some embodiments, please refer to Figures 1 to 3 The robotic arm 2 has a buffer platform 8 at its working end. The buffer platform 8 has a vertical elastic buffering and extension degree of freedom. The upper end of the buffer platform 8 is connected to the working end of the robotic arm 2, and the lower end is rotatably connected to the rotating shaft 31. The buffer platform 8 is used to buffer the downward pressure of the robotic arm 2 on the inspection well chamber when the robotic arm 2 drives the coding component 3 to move downward. The buffer platform 8 is frame-shaped, with multiple elastic elements 81 vertically arranged in the middle, capable of vertical buffering and extension. Therefore, when the robotic arm 2 drives the coding component 3 to move suddenly downward, the buffer platform 8 can buffer the sudden downward pressure of the robotic arm 2, preventing rigid contact or collision with the inspection well chamber, effectively avoiding damage to the lower end of the pen barrel 33. The rope of the suspension component 7 is connected to the upper end of the buffer platform 8.

[0047] In some embodiments, please refer to Figures 1 to 3 The buffer platform 8 has multiple casters 82 at its bottom. These casters 82 support the buffer platform 8 and allow it to move in any direction above the inspection well chamber. During movement, the buffer platform 8 is used to adjust the writing position of the pen 33. The buffer platform 8 not only provides vertical cushioning but also adjusts the position of the coding component 3 (achieved through the multiple casters 82 in this embodiment). The inspection well chamber is generally located below ground level, while the buffer platform 8 is typically located on the ground. When the coding component 3 needs to encode the inspection well chamber located on the ground, this can be achieved by adjusting the height of the frame 1. The casters 82 have built-in locking mechanisms that lock them and prevent rotation, thus fixing the position of the buffer platform 8.

[0048] In order to enable the telescopic column 32 to rotate within the radial plane of the pivot 31, in some embodiments, please refer to... Figures 1 to 3A roller 37 is coaxially sleeved on the outer wall of the rotating shaft 31. An arc-shaped slide rail 38 is fixedly mounted on the outer wall of the roller 37, and the arc-shaped slide rail 38 is arranged along the outer circumference of the roller 37. An arc-shaped slider 39 is slidably connected to the arc-shaped slide rail 38. The outer end of the arc-shaped slider 39 is hinged to the upper end of the telescopic column 32. The telescopic column 32 can rotate in the radial plane of the roller 37, and its position after rotation can be limited by the set screw 391 screwed on the arc-shaped slider 39. The rotation of the telescopic column 32 is used to adjust the writing position, direction, or height of the pen 33. By setting the roller 37, the arc-shaped slide rail 38, and the arc-shaped slider 39, the degree of freedom of movement of the pen 33 is increased, thereby enabling convenient and smooth writing of cast characters and codes in multiple directions. The roller 37 is a cylindrical structure with open ends and a hollow interior.

[0049] The position of the curved slider 39 after movement can be locked by turning the set screw 391, thereby adjusting the height or direction of the pen barrel 33 for smoother writing. The curved slide rail 38 is multi-segmented, and the arc of each segment matches the arc of the roller 37. The multiple curved slide rail segments 38 are arranged around the outer circumference of the roller 37 to form a circular structure. Adjacent curved slide rail segments 38 are fixed together by locking components. The curved slider 39 is slidably connected to the lower curved slide rail 38, and it can also slide upwards to adjust the position of the pen barrel 33.

[0050] The invention also includes a photovoltaic power supply component 9 (connected to the upper end of the frame 1, used to absorb solar energy and convert it into electrical energy), whose power output end is electrically connected to the robotic arm 2, the driver 4 and the hanging component 7 and used to supply power respectively, realizing power supply even when there is no mains power, and providing power or energy requirements for the coding operation of the manhole marking on the inspection well.

[0051] like Figure 3 The diagram shown is a structural schematic of the manhole cover after the casting of the identification mark is encoded.

[0052] Specifically, the following coding rules are used in the actual coding operation of inspection well chambers:

[0053] The well chambers are coded according to their structure, with channel wells represented by "L" and sedimentation wells by "N":

[0054] They are coded according to the shape of the well chamber: straight wells are represented by "Z", turning wells by "C", three-way wells by "T" and three-way wells by "X".

[0055] The socket is coded according to its type; ordinary sockets are represented by "O", and sleeve sockets are not marked by default.

[0056] The well chamber is coded according to its nominal diameter, using Arabic numerals in mm.

[0057] The well chamber and well shaft are coded according to the connection interface type. The "T" type interface is not marked by default, the "K" type interface is represented by "K", the spigot interface is represented by "H", and the flange interface is represented by "F".

[0058] The coding is based on the direction of inflow: "S" represents inflow from the main downstream direction, "L" represents inflow from the left side, and "R" represents inflow from the right side.

[0059] The nominal diameter is coded and represented by Arabic numerals in mm.

[0060] The water level is coded according to its drop height, represented by "D Arabic numerals"; the unit is mm.

[0061] The branch pipes are coded according to their direction. Those flowing in the same direction as the main stream are not marked by default. Flowing to the left is indicated by "L" and flowing to the right is indicated by "R".

[0062] The angles are coded as follows: the angle between the centerline of the inlet pipe and the centerline of the main downstream inlet pipe; if there is no main downstream inlet pipe, the angle between the centerline of the inlet pipe and the centerline of the outlet pipe is used, expressed in Arabic numerals in "°"; when the angle is 90°, it is not marked by default; the angle between the centerline of the outlet pipe and the extended centerline of the main downstream inlet pipe is expressed in Arabic numerals in "°".

[0063] This invention utilizes a green, short-process lost foam casting method to integrally mold the pipe and manhole. The comprehensive coding content and unique coding system are the first of their kind both domestically and internationally, offering high clarity, durability, and stability. The comprehensive cast-lettered coding system for the manhole serves as a shape and function code, facilitating design by engineers, enabling manufacturers to accurately prefabricate according to the coding, and simplifying installation and selection by on-site personnel. It also facilitates information exchange among sales, design, production, transportation, and construction parties.

[0064] The manhole code consists of the manhole structure, shape, nominal diameter of the manhole / manhole shaft, interface type, inlet pipe direction, nominal diameter × angle, drop height, interface type, and outlet pipe nominal diameter, direction, and interface type. The ductile iron manhole chamber is cast as a single piece using a lost foam casting process. The manhole identification code indicates the manhole chamber's structural form, external shape, functional characteristics, and the specifications and interface types of the main flow pipe, side inlet pipes, and outlet pipes.

[0065] The manhole identification code is cast together with the manhole. This marking is clear and durable, facilitating production flow and information verification by sales, design, and on-site construction and installation personnel.

[0066] like Figure 3As shown, the well chamber code is: NZ1600 / 700-S1000H-1000F, where N indicates that the well chamber structure is a sludge-sealing type; Z indicates a straight-through well, with a nominal well chamber diameter of 1600mm, a nominal well shaft diameter of 700mm, and a T-type interface (default); S indicates that the nominal diameter of the main inlet pipe is 1000mm, H indicates the spigot interface type; the nominal diameter of the outlet pipe is 1000mm, concentric with the main downstream inlet pipe, and F indicates the flange interface type; since there are no inlet branch pipes, only the main downstream inlet pipe and the outlet pipe, this inspection well can be called a sludge-sealing, closed-end straight-through well.

[0067] Special example: NT1200 / 700-S500-R500×60°KD800-600F

[0068] N indicates that the well chamber structure is a sludge-collecting type; T indicates that the well chamber shape is a tee; the nominal diameter of the well chamber is 1200, the nominal diameter of the well shaft is 700, and the T-type interface is the default; S indicates the main downstream inlet pipe, with a nominal diameter of 500 and a T-type interface (default); R indicates the right inlet pipe, with a nominal diameter of 500, an angle of 60° with the main downstream inlet pipe, a K-type interface, and a drop height of 800 mm; the nominal diameter of the outlet pipe is 600, concentric with the main downstream inlet pipe; F indicates the flange connection type and the pressure rating is PN10 (default).

[0069] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A manhole cover casting and coding device, characterized in that, include: The frame is erected at the top of the inspection well chamber, and its position can be moved and adjusted. A robotic arm, connected to the frame, has a working end that can move and adjust in multiple directions. A driver is provided on the frame, and the power output end of the driver is connected to the robotic arm and used to drive the robotic arm to operate. The coding component is connected to the frame and can extend into the manhole chamber. Its upper end is connected to the working end of the robot arm. The coding component is used to identify and code the manhole chamber. The coding position and writing trajectory of the coding component in the manhole chamber are adjusted by means of the robot arm. The frame includes a lower frame, an adjusting rod, and an upper frame. The robotic arm is connected to the upper frame. The upper end of the lower frame has multiple internal threaded holes along the vertical direction, and the lower end of the upper frame has multiple internal threaded holes along the vertical direction. The internal threaded holes of the lower frame and the internal threaded holes of the upper frame have opposite thread directions. The adjusting rod has external threads with opposite directions at both ends. The adjusting rod is vertically arranged and its two ends are screwed to the internal threaded holes of the upper frame and the lower frame, respectively. Tightening the adjusting rod is used to adjust the distance between the upper frame and the lower frame, thereby adjusting the height of the robotic arm and the coding assembly.

2. The manhole cover casting and coding device as described in claim 1, characterized in that, It also includes a control panel connected to the frame and electrically connected to the robotic arm, the control panel being used to control the operation of the robotic arm and instruct the encoding components to encode at different positions.

3. The manhole casting and coding device as described in claim 2, characterized in that, The control panel is electrically connected to a wireless communication module, which is used to establish a wireless communication connection with external devices and send signals. The well chamber casting marking and encoding device also includes a mobile terminal that is wirelessly connected to the control panel. The mobile terminal is used to remotely control the operation of the robotic arm and the encoding component.

4. The manhole cover casting and coding device as described in claim 1, characterized in that, The upper end of the frame is provided with a hanging assembly for suspending the coding component. When the coding component is not in use, the robot arm is detached from the coding component and connected to the coding component through the hanging assembly, which can suspend the coding component to form a free-suspension state. At this time, manually pushing the coding component can make the coding component perform identification coding in the inspection well chamber.

5. The manhole cover casting and coding device as described in claim 1, characterized in that, The encoding component includes: The rotating shaft is horizontally positioned and rotatably connected to the working end of the robotic arm, allowing it to rotate circumferentially within a vertical plane. The telescopic column has its upper end connected to the rotating shaft and its lower end facing the inspection well chamber, and has the freedom to extend and retract radially along the rotating shaft; The pen has an upper end inserted into the lower end of the telescopic column with an adjustable insertion depth, and a lower end for contacting the inspection well chamber. The pen is used to write codes on the inspection well chamber markings by means of the movement adjustment of the working end of the robotic arm. The writing height of the pen is adjusted by means of the telescopic column. The pen contains paint, which is used to write on the inspection well chamber and form codes.

6. The manhole casting marking and coding device as described in claim 5, characterized in that, The coding component also includes a container holding paint, one end of which is connected to a pipe and the other end of which is connected to the inside of the pen barrel. A valve is installed on the pipe, which is used to deliver paint into the pen barrel, and the valve is used to control the amount of paint delivered.

7. The manhole casting and coding device as described in claim 5, characterized in that, The robotic arm's working end is equipped with a buffer platform, which has a vertical elastic buffer extension degree of freedom. The upper end of the buffer platform is connected to the robotic arm's working end, and the lower end is rotatably connected to the rotating shaft. The buffer platform is used to buffer the downward pressure of the robotic arm on the inspection well chamber when the robotic arm drives the coding component to move downward.

8. The manhole casting marking and coding device as described in claim 7, characterized in that, The bottom of the buffer platform is equipped with multiple casters, which are used to support the buffer platform to move in any direction above the inspection well chamber. The buffer platform is used to adjust the writing position of the pen during movement.

9. The manhole casting and coding device as described in claim 5, characterized in that, A roller is coaxially sleeved on the outer wall of the rotating shaft. An arc-shaped slide rail is fixedly installed on the outer wall of the roller. The arc-shaped slide rail is arranged along the outer circumference of the roller. An arc-shaped slider is slidably connected on the arc-shaped slide rail. The outer end of the arc-shaped slider is hinged to the upper end of the telescopic column. The telescopic column can rotate in the radial plane of the roller, and its position after rotation can be limited by the set screw screwed on the arc-shaped slider. The rotation of the telescopic column is used to adjust the writing position, direction, or height of the pen.

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