A drainage pipe network traceability device and its usage method

Abstract

The present invention discloses a drainage network tracing device and method for use. The drainage network tracing device includes a detection mechanism and a handheld operating unit. The detection mechanism includes a signal transmitter and a signal receiver. The handheld operating unit includes a telescopic rod mechanism and a hanging mechanism. The signal transmitter or the signal receiver is detachably mounted on the bottom of the telescopic rod mechanism. In the present invention, a detachable assembly method of the detection mechanism and the handheld operating unit is adopted. This device and method are not only safer, more convenient, and pollution-free in use, but also more stable and reliable in operation, ensuring the rapidity and accuracy of the detection process.

Description

Technical Field

[0001] The present invention relates to the technical field of drainage pipe networks, and in particular to a drainage pipe network source tracing device and a use method thereof. Background Art

[0002] A major problem with urban municipal drainage networks is the tendency to misplace pollution sources, where pollution sources are identified where none should be, or vice versa. The prerequisite for effectively identifying misplaced pollution sources is pollutant tracing. This involves qualitatively or quantitatively analyzing the sources of pollutants and determining the causal relationship between pollutants within the network and their sources.

[0003] In existing technologies, common traceability technologies include physical inspection, characteristic factor method, and watermark recognition method. There are many specific methods available for each technology, but they all have certain limitations and restrictive factors. The specific analysis is as follows:

[0004] Flow monitoring method: Flow monitoring gaps are inevitable, the cost of observing flow section by section is high, and it is impossible to accurately determine the systemic lines of the pipe network intuitively;

[0005] Smoke testing: has significant limitations, is difficult to apply on a large scale (air pollution), can easily cause public panic, and is difficult to detect all illegal connections and illegal emissions;

[0006] Dye test method: It has great limitations and is difficult to apply on a large scale (water pollution). It is also not suitable for rainwater pipes (empty pipes at certain times) and pipes with low flow rates or static non-flowing conditions.

[0007] Video (CCTV and QV) recognition method: CCTV is slow and not suitable for pipes full of water or sections with deep siltation. Desilting or pretreatment is required in advance. QV has a limited viewing distance (only a certain distance from the wellhead).

[0008] Diving detection method: There is a high risk to worker safety, accuracy is difficult to guarantee, and it is limited to pipes with a diameter of DN800 or above. Summary of the Invention

[0009] The technical problem to be solved by the present invention is to provide a drainage network tracing device and a method for use which are more convenient and reliable to operate and more rapid and accurate in detection.

[0010] In order to solve the above technical problems, the present invention adopts the following technical solution: a drainage network tracing device, comprising a detection mechanism and a handheld operating unit, wherein the detection mechanism comprises a signal sending component and a signal receiving component, and the handheld operating unit comprises a telescopic rod mechanism and a hanging mechanism, wherein the signal sending component or the signal receiving component is detachably mounted on the bottom of the telescopic rod mechanism;

[0011] The telescopic rod mechanism includes an outer telescopic sleeve, an inner telescopic tube assembly, and an inner connecting rod assembly nested in sequence from the outside to the inside. The inner telescopic tube assembly is threadedly rotatably matched with the inner connecting rod assembly, and the inner telescopic tube assembly is slidably plugged into the outer telescopic sleeve. Under the rotational drive of the inner connecting rod assembly, the inner telescopic tube assembly has a motion range of extending or retracting into the outer telescopic sleeve.

[0012] The hanging mechanism includes a first hoop slidably sleeved on the upper end of the outer telescopic sleeve, a second hoop fixedly sleeved on the lower end of the outer telescopic sleeve, and a hinged rod assembly hinged between the first hoop and the second hoop. The hinged rod assembly has multiple hinged rod assemblies, which are respectively arranged at intervals on the periphery of the outer telescopic sleeve, and the hinged rod assembly has a motion stroke that bends or resets as the first hoop slides.

[0013] Furthermore, the inner connecting rod assembly includes a rotating handle, a reinforcing fixing piece and a threaded screw, the bottom of the rotating handle is provided with an assembly groove, the reinforcing fixing piece is fixed in the assembly groove, and the threaded screw is fixed to the bottom of the reinforcing fixing piece;

[0014] A flange tube interface is fixed on the top of the outer telescopic sleeve, and the flange tube interface is snapped into the assembly groove and rotates with the rotating handle. The reinforcing fixing piece extends into the flange tube interface, and the threaded screw extends into the outer telescopic sleeve, and the threaded screw has a motion stroke that rotates inside the outer telescopic sleeve as the rotating handle rotates.

[0015] Furthermore, the inner telescopic tube assembly includes a sliding sleeve and an inner sleeve;

[0016] The outer telescopic sleeve has a mounting cavity longitudinally defined within its body, a plurality of sliding grooves longitudinally defined on its inner wall, a plurality of ribs longitudinally fixed to its outer wall, the ribs slidably engaging with the sliding grooves, a threaded through groove longitudinally defined within its body, the threaded through groove engaging with the threaded screw, and the sliding sleeve has a sliding upward or downward motion stroke along the mounting cavity under the rotational drive of the threaded screw;

[0017] The inner sleeve is fixedly connected to the bottom of the sliding sleeve, the threaded screw extends into the inner sleeve, and the inner sleeve has a movement stroke of extending or retracting into the outer telescopic sleeve as the sliding sleeve slides.

[0018] Furthermore, the articulated rod assembly includes a connecting rod and a support rod, the length of the connecting rod is greater than the length of the support rod, the top of the connecting rod is hinged to the first hoop, the bottom of the connecting rod is fixed with a clamping piece, the bottom of the support rod is hinged to the second hoop, the top of the support rod is fixed with a hook, and the clamp is hingedly connected to the hook.

[0019] Furthermore, the hanging mechanism also includes a spring member and a top support member. The spring member is sleeved on the outside of the outer telescopic sleeve and is located between the first hoop and the second hoop. The top support member is fixed to the top of the first hoop and extends upward. The spring member can have a compression or reset movement stroke as the top support member drives the first hoop to slide.

[0020] Furthermore, it also includes an assembly component that can be detachably mounted on the bottom of the telescopic rod mechanism, and the assembly component includes a mounting plate, a U-shaped bracket and a liquid sensor alarm;

[0021] A threaded pipe interface is fixed on the top of the mounting plate, and the inner telescopic tube assembly also includes a threaded pipe column arranged at the bottom, and the threaded pipe interface is threadedly matched with the threaded pipe column. The front of the mounting plate is provided with a bolt member that can be matched and installed with the shell of the signal sending component or the signal receiving component, and the back of the mounting plate is provided with a slide rail that can be slidably plugged into the U-shaped bracket, and the U-shaped bracket is opened upward and is inserted on the back of the mounting plate in an adjustable height. The liquid sensor alarm is fixed to the bottom of the mounting plate.

[0022] Furthermore, the signal transmitting component includes a signal transmitting host, a guide pin and a wire, wherein the guide pin is fixed to the bottom of the signal transmitting host, and the wire is connected between the signal transmitting host and an external control device and a power supply;

[0023] The signal receiving component includes a signal receiving and analyzing host and a probe. The probe is fixed on the bottom of the signal receiving and analyzing host. The signal receiving and analyzing host has a built-in power supply.

[0024] Furthermore, the detection mechanism is a ground penetrating radar, the signal emitting component is used to emit electromagnetic waves in the form of radar wave signals, and the signal receiving component is used to receive radar wave signals and analyze feedback.

[0025] Furthermore, the detection mechanism is a network cable finder, the signal emitting component is used to emit electromagnetic waves in the form of electric pulse signals, and the signal receiving component is used to receive the electric pulse signals and analyze the feedback.

[0026] A method for using a drainage network source tracing device, comprising the drainage network source tracing device, the method comprising the following steps:

[0027] S1: Observe the water level in the pipes below the ground with your naked eyes and a flashlight or use a pipe detection instrument.

[0028] S2: Insert the single traceability device as the signal emitting component mounted on the bottom of the handheld operating unit into the signal emitting well, and insert the multiple traceability devices as the signal receiving components mounted on the bottom of the handheld operating unit into the signal receiving well a and the signal receiving well b respectively;

[0029] S3: Pushing the first hoop to open the hinged rod assembly, using the hook to hook or press against the wall of the inspection well, and rotating the rotary handle to gradually extend the inner sleeve out of the outer telescopic sleeve;

[0030] S4: When the pipeline connecting the signal-emitting well and the signal-receiving well is in an empty state or the water level is less than 1 / 2 of the pipe level, the detection mechanism uses a ground-penetrating radar, and electromagnetic waves are transmitted in the pipeline in the form of radar wave signals. Since the attenuation of radar wave signals in the air medium is much smaller than the attenuation in the soil of the stratum surrounding the pipeline, it is possible to quickly determine which of the signal-receiving wells a and b is the inspection well connected to the upstream and downstream of the same pipeline as the signal-emitting well, thereby quickly achieving the purpose of pipeline network tracing;

[0031] S5: When the pipeline connecting the signal emitting well and the signal receiving well is full or the water level is greater than 2 / 3 of the pipe position, the detection mechanism adopts a network line finder, and the electromagnetic wave is transmitted in the form of an electric pulse signal in the pipeline. The electric pulse signal uses the water in the pipeline as a conductor, and can quickly determine which of the signal receiving well a and the signal receiving well b is the inspection well connected to the upstream and downstream of the same pipeline as the signal emitting well, thereby quickly achieving the purpose of tracing the pipeline network.

[0032] The beneficial effects of the present invention are embodied in:

[0033] In the present invention, a combination of a detection mechanism and a handheld operating unit with detachable assembly is adopted. The detection mechanism is extended into the inspection well through the handheld operating unit. The stability and firmness of the handheld operating unit in the inspection well can be controlled by sliding the expansion or contraction of the hanging mechanism. The specific extension length of the handheld operating unit in the inspection well can be controlled by rotating the extension or shortening of the telescopic rod mechanism. It is not only safer and more convenient to use, without the need for manual downhole operations and pre-treatment and dredging of pipelines, but also more stable and reliable in operation. The operation premise is that it can be stably hooked in the inspection well, and then the detection mechanism can be stably lowered or raised in the inspection well, thereby ensuring the accuracy of the detection results.

[0034] In the present invention, the detection mechanism utilizes the conduction characteristics of electromagnetic waves. According to the conduction of electromagnetic waves between the signal sending component and the signal receiving component, the connectivity status between the current inspection wells and the status of the pipeline network can be quickly determined. This is not only applicable to a variety of pipeline conditions and does not cause pollution, but also ensures the speed of the detection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the assembly structure of a signal sending component according to an embodiment of the present invention.

[0036] Figure 2 It is a schematic diagram of the assembly structure of a signal receiving component according to an embodiment of the present invention.

[0037] Figure 3 It is a front view of an assembly component according to an embodiment of the present invention.

[0038] Figure 4 It is a rear view of an assembly component according to an embodiment of the present invention.

[0039] Figure 5 It is a front view of a handheld operating unit in a folded state according to an embodiment of the present invention.

[0040] Figure 6 It is a front view of a handheld operating unit in an extended state according to an embodiment of the present invention.

[0041] Figure 7 It is a partial cross-sectional view of a telescopic rod mechanism according to an embodiment of the present invention.

[0042] Figure 8 It is a partial cross-sectional view of an inner connecting rod according to an embodiment of the present invention.

[0043] Figure 9 It is a partial cross-sectional view of an outer telescopic sleeve according to an embodiment of the present invention.

[0044] Figure 10 It is a partial cross-sectional view of an inner telescopic tube assembly according to one embodiment of the present invention.

[0045] Figure 11 It is a partial side view of a hinged rod assembly according to one embodiment of the present invention.

[0046] Figure 12 This is a schematic diagram of an embodiment of the present invention applied to an empty pipe or a pipe with a water level less than 1 / 2 of the pipe level.

[0047] Figure 13 This is a schematic diagram of an embodiment of the present invention when the pipe is full or the water level in the pipe is greater than 2 / 3 of the pipe level.

[0048] The components in the accompanying drawings are marked as follows: 1. Detection mechanism; 2. Signal sending component; 201. Signal transmitting host; 202. Guide pin; 203. Wire; 3. Signal receiving component; 301. Signal receiving and analyzing host; 302. Probe; 4. Assembly component; 5. Mounting plate; 501. Threaded pipe interface; 502. Bolt; 503. Slide rail; 6. U-shaped bracket; 7. Liquid sensor alarm; 8. Handheld operation unit; 9. Telescopic rod mechanism; 10. Hanging mechanism; 11. Internal rod assembly; 1101. Rotating handle; 1102. Strengthening fixing member; 1103. Threaded Screw rod; 12. External telescopic sleeve; 1201. Flange pipe interface; 1202. Mounting cavity; 1203. Slide groove; 13. Internal telescopic tube assembly; 14. Sliding sleeve; 1401. Rib; 1402. Threaded through groove; 15. Inner sleeve; 1501. Threaded pipe column; 16. First hoop; 17. Second hoop; 18. Spring member; 19. Articulated rod assembly; 20. Connecting rod; 2001. Snap-fit member; 21. Support rod; 2101. Hook; 22. Ground; 23. Signal sending well; 24. Signal receiving well a; 25. Signal receiving well b; 26. Pipeline. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. It should be noted that if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the various electrical equipment and devices involved in this application are standard parts or modified parts that can be obtained through purchase channels in the prior art.

[0050] See also Figures 1-13 .

[0051] The present invention provides a drainage network tracing device, comprising a detection mechanism 1 and a handheld operating unit 8. The detection mechanism 1 comprises a signal emitter 2 and a signal receiver 3. The handheld operating unit 8 comprises a telescopic rod mechanism 9 and a hanging mechanism 10. The signal emitter 2 or the signal receiver 3 is detachably mounted on the bottom of the telescopic rod mechanism 9.

[0052] The telescopic rod mechanism 9 includes an outer telescopic sleeve 12, an inner telescopic tube assembly 13, and an inner connecting rod assembly 11, which are nested in sequence from the outside to the inside. The inner telescopic tube assembly 13 is threadedly rotatably matched with the inner connecting rod assembly 11, and the inner telescopic tube assembly 13 is slidably plugged into the outer telescopic sleeve 12. Under the rotational drive of the inner connecting rod assembly 11, the inner telescopic tube assembly 13 has a motion range of extending or retracting into the outer telescopic sleeve 12.

[0053] The hanging mechanism 10 includes a first hoop 16 slidably mounted on the upper end of the outer telescopic sleeve 12, a second hoop 17 fixedly mounted on the lower end of the outer telescopic sleeve 12, and a hinged rod assembly 19 hinged between the first hoop 16 and the second hoop 17. There are multiple hinged rod assemblies 19, which are respectively arranged at intervals around the periphery of the outer telescopic sleeve 12, and the hinged rod assembly 19 has a movement stroke that bends or resets as the first hoop 16 slides.

[0054] In the present invention, a combination of a detection mechanism and a handheld operating unit that can be detachably assembled is adopted. On the one hand, the detection mechanism utilizes the conduction characteristics of electromagnetic waves, and according to the conduction of electromagnetic waves between the signal sending component and the signal receiving component, it can quickly determine the connectivity status and pipeline network status between the current inspection wells; on the other hand, the detection mechanism is extended into the inspection well via the handheld operating unit, wherein the stability and firmness of the handheld operating unit in the inspection well can be controlled by sliding the expansion or contraction of the hanging mechanism, and the specific extension length of the handheld operating unit in the inspection well can be controlled by rotating the extension or shortening of the telescopic rod mechanism. This device and method are not only safer and more convenient to use and pollution-free, but also more stable and reliable in operation, ensuring the speed and accuracy of the detection process.

[0055] In one embodiment, the inner rod assembly 11 includes a rotating handle 1101, a reinforcing fixing member 1102, and a threaded screw 1103. The bottom of the rotating handle 1101 is provided with an assembly groove, the reinforcing fixing member 1102 is fixed in the assembly groove, and the threaded screw 1103 is fixed to the bottom of the reinforcing fixing member 1102.

[0056] A flange pipe interface 1201 is fixed to the top of the outer telescopic sleeve 12, and the flange pipe interface 1201 is snapped into the assembly groove and rotated with the rotating handle 1101. The reinforcing fixing part 1102 extends into the flange pipe interface 1201, and the threaded screw 1103 extends into the outer telescopic sleeve 12, and the threaded screw 1103 has a motion stroke that rotates inside the outer telescopic sleeve 12 as the rotating handle 1101 rotates.

[0057] When in use, the rotating handle 1101 is mounted on the top of the outer telescopic sleeve 12 and can rotate freely around the top of the outer telescopic sleeve 12. It is necessary to ensure that the length and rod diameter of the threaded screw 1103 are smaller than the length and tube diameter of the outer telescopic sleeve 12.

[0058] In one embodiment, the inner telescopic tube assembly 13 includes a sliding sleeve 14 and an inner sleeve 15;

[0059] The outer telescopic sleeve 12 has a mounting cavity 1202 longitudinally defined within its body. A plurality of slide grooves 1203 are longitudinally defined on the inner wall of the mounting cavity 1202. A plurality of ribs 1401 are longitudinally fixed to the outer wall of the sliding sleeve 14. The ribs 1401 are slidably engaged with the slide grooves 1203. A threaded through groove 1402 is longitudinally defined within the body of the sliding sleeve 14. The threaded through groove 1402 is threadably engaged with the threaded screw 1103. Driven by the rotation of the threaded screw 1103, the sliding sleeve 14 can slide upward or downward along the mounting cavity 1202.

[0060] The inner sleeve 15 is fixedly connected to the bottom of the sliding sleeve 14 , and the threaded screw 1103 extends into the inner sleeve 15 . The inner sleeve 15 has a motion stroke of extending or retracting into the outer telescopic sleeve 12 as the sliding sleeve 14 slides.

[0061] With such a design, when the rotating handle 1101 is rotated, the threaded screw 1103 rotates accordingly, and the sliding sleeve 14, which is nested outside the threaded screw 1103 and threadably matched therewith, slides up and down along the inner wall of the mounting cavity 1202 under the sliding insertion restriction of the rib 1401 and the slide groove 1203. At the same time, the inner sleeve 15 fixedly connected to the bottom of the sliding sleeve 14 also moves up and down in the mounting cavity 1202, and the inner sleeve 15 always remains sleeved on the outside of the threaded screw 1103. The detection mechanism 1 can achieve stable descent or ascent in the inspection well, avoiding descent or ascent in a rotating manner, thereby improving the accuracy of the detection results.

[0062] In one embodiment, a conventional carbon fiber telescopic rod may be connected between the telescopic rod mechanism 9 and the detection mechanism 1 to cope with inspection wells of greater depth.

[0063] In one embodiment, the articulated rod assembly 19 includes a connecting rod 20 and a support rod 21, the length of the connecting rod 20 is greater than the length of the support rod 21, the top of the connecting rod 20 is hinged to the first hoop 16, the bottom of the connecting rod 20 is fixed with a clamping piece 2001, the bottom of the support rod 21 is hinged to the second hoop 17, the top of the support rod 21 is fixed with a hook 2101, and the clamping piece 2001 is hingedly connected to the hook 2101. With this design, when the first hoop 16 is pushed to slide downward along the outer telescopic sleeve 12, the connecting rod 20 moves downward accordingly, while the support rod 21 remains fixed by the second hoop 17. Then, the connecting rod 20 and the support rod 21 bend and expand outward at the hinge, and the hook 2101 extends from the clamping member 2001 until it hooks or abuts against the wall of the inspection well. The handheld operating unit 8 is operated on the premise that it can be stably hooked and placed in the inspection well, avoiding significant shaking or jittering of the detection mechanism 1 during the lowering process, thereby improving the accuracy of the detection results.

[0064] It should be noted that the opening direction of the hook claw 2101 faces outward, and the fixed position of the second hoop 17 at the lower end of the outer telescopic sleeve 12 is adjustable.

[0065] In one embodiment, the mounting mechanism 10 further includes a spring member 18 and a supporting member. The spring member 18 is sleeved on the exterior of the outer telescopic sleeve 12 and interposed between the first hoop 16 and the second hoop 17. The supporting member is fixed to the top of the first hoop 16 and extends upward. The spring member 18 can move through a compression or reset motion as the supporting member drives the first hoop 16 to slide. This design allows the supporting member to extend the push of the first hoop 16, while the spring member 18 provides a buffering effect during the advancement of the first hoop 16.

[0066] In one embodiment, it further includes an assembly component 4 detachably mounted on the bottom of the telescopic rod mechanism 9, the assembly component 4 including a mounting plate 5, a U-shaped bracket 6 and a liquid sensor alarm 7;

[0067] A threaded pipe interface 501 is fixed on the top of the mounting plate 5, and the inner telescopic tube assembly 13 also includes a threaded pipe column 1501 arranged at the bottom. The threaded pipe interface 501 is threadably matched with the threaded pipe column 1501. The front of the mounting plate 5 is provided with a bolt member 502 that can be installed and matched with the shell of the signal sending component 2 or the signal receiving component 3. The back of the mounting plate 5 is provided with a slide rail 503 that can be slidably plugged into the U-shaped bracket 6, and the U-shaped bracket 6 is opened upward and is inserted on the back of the mounting plate 5 in an adjustable height. The liquid sensor alarm 7 is fixed to the bottom of the mounting plate 5.

[0068] With this design, on the one hand, the mounting plate 5 provides greater convenience for the replacement and assembly of the detection mechanism 1 and the handheld operating unit 8; on the other hand, during the detection process, when the inspection well is empty, the U-shaped head of the U-shaped bracket 6 will preferentially hit the bottom of the well to prevent damage to the signal sending component 2 or the signal receiving component 3; when there is liquid in the inspection well, the liquid sensor alarm 7 will preferentially extend into the liquid and trigger the alarm in time to remind the staff to stop lowering the detection mechanism 1 to avoid damage to the machine body.

[0069] In one embodiment, the signal transmitting component 2 includes a signal transmitting host 201, a guide pin 202 and a wire 203, wherein the guide pin 202 is fixed to the bottom of the signal transmitting host 201, and the wire 203 is connected between the signal transmitting host 201 and an external control device and a power supply;

[0070] The signal receiving component 3 includes a signal receiving and analyzing host 301 and a probe 302 . The probe 302 is fixed to the bottom of the signal receiving and analyzing host 301 . The signal receiving and analyzing host 301 has a built-in power supply.

[0071] Designed in this way, the detection mechanism 1 utilizes the conduction characteristics of electromagnetic waves, first lowers the signal emitting component 2 into a single inspection well, and then lowers multiple signal receiving components 3 into multiple adjacent inspection wells. The signal emitting component 2 emits electromagnetic waves to the upstream and downstream pipelines of the inspection well, and the signal receiving component 3 receives the electromagnetic waves and analyzes the feedback. According to the conduction of the electromagnetic waves between the signal emitting component 2 and the signal receiving component 3, the connectivity status between the current inspection wells and the status of the pipeline network can be quickly determined, thereby improving the speed of the detection process.

[0072] In one embodiment, the detection mechanism 1 is a ground-penetrating radar. The signal transmitter 2 is used to transmit electromagnetic waves in the form of radar signals, and the signal receiver 3 is used to receive the radar signals and analyze the feedback. This design allows the ground-penetrating radar to operate when the pipeline 26 connecting the signal transmission well 23 and the signal receiving well is empty or the water level is less than 1 / 2 of the pipe level.

[0073] In one embodiment, the detection mechanism 1 is a network cable finder. The signal transmitter 2 is used to emit electromagnetic waves in the form of electrical pulse signals, and the signal receiver 3 is used to receive the electrical pulse signals and analyze the feedback. This design allows the network cable finder to function properly when the pipe 26 connecting the signal transmission well 23 and the signal receiving well is full or has a water level greater than 2 / 3 of the pipe.

[0074] A method for using a drainage network source tracing device, comprising the drainage network source tracing device, the method comprising the following steps:

[0075] S1: Observe the water level in the pipe 26 below the ground 22 with the naked eye and a flashlight or with a pipe detection instrument.

[0076] S2: Insert the single tracing device of the signal emitting component 2 assembled at the bottom of the handheld operating unit 8 into the signal emitting well 23, and insert the multiple tracing devices of the signal receiving component 3 assembled at the bottom of the handheld operating unit 8 into the signal receiving well a24 and the signal receiving well b25 respectively;

[0077] S3: Push the first hoop 16 to open the hinged rod assembly 19, use the hook 2101 to hook or press against the wall of the inspection well, and rotate the rotating handle 1101 to gradually extend the inner sleeve 15 out of the outer telescopic sleeve 12;

[0078] S4: When the pipeline 26 connecting the signal emitting well 23 and the signal receiving well is in an empty pipe state or the water level is less than 1 / 2 of the pipe position, the detection mechanism 1 uses a ground penetrating radar, and the electromagnetic wave is transmitted in the form of a radar wave signal in the pipeline 26. Since the attenuation of the radar wave signal in the air medium is much smaller than the attenuation in the soil of the stratum surrounding the pipeline 26, it can be quickly determined whether the signal receiving well a24 or the signal receiving well b25 is an inspection well connected to the upstream and downstream of the same pipeline 26 as the signal emitting well 23, thereby quickly achieving the purpose of tracing the source of the pipeline network;

[0079] S5: When the pipeline 26 connecting the signal emitting well 23 and the signal receiving well is in a full pipe state or the water level is greater than 2 / 3 of the pipe position, the detection mechanism 1 adopts a network line finder, and the electromagnetic wave is transmitted in the form of an electric pulse signal in the pipeline 26. The electric pulse signal uses the water in the pipeline 26 as a conductor, and can quickly determine which of the signal receiving well a24 and the signal receiving well b25 is the inspection well connected to the upstream and downstream of the same pipeline 26 as the signal emitting well 23, thereby quickly achieving the purpose of tracing the pipeline network.

[0080] It should be understood that the examples and implementation methods described herein are for illustrative purposes only and are not intended to limit the present invention. Those skilled in the art may make various modifications or changes based on them. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A drainage network tracing device, characterized by: The invention comprises a detection mechanism (1) and a handheld operating unit (8), wherein the detection mechanism (1) comprises a signal sending component (2) and a signal receiving component (3), and the handheld operating unit (8) comprises a telescopic rod mechanism (9) and a hanging mechanism (10), wherein the signal sending component (2) or the signal receiving component (3) is detachably mounted on the bottom of the telescopic rod mechanism (9). The telescopic rod mechanism (9) comprises an outer telescopic sleeve (12), an inner telescopic tube assembly (13) and an inner connecting rod assembly (11) which are nested and distributed in sequence from the outside to the inside. The inner telescopic tube assembly (13) is threadedly matched with the inner connecting rod assembly (11). The inner telescopic tube assembly (13) is slidably plugged with the outer telescopic sleeve (12). Under the rotational drive of the inner connecting rod assembly (11), the inner telescopic tube assembly (13) has a motion stroke of extending or retracting into the outer telescopic sleeve (12). The hanging mechanism (10) comprises a first hoop (16) slidably sleeved on the upper end of the outer telescopic sleeve (12), a second hoop (17) fixedly sleeved on the lower end of the outer telescopic sleeve (12), and a hinged rod assembly (19) hinged between the first hoop (16) and the second hoop (17), wherein the hinged rod assembly (19) comprises a plurality of hinged rod assemblies (19) which are respectively arranged at intervals around the periphery of the outer telescopic sleeve (12), and the hinged rod assembly (19) has a motion stroke that bends or resets as the first hoop (16) slides. The hinged rod assembly (19) includes a connecting rod (20) and a supporting rod (21), the length of the connecting rod (20) is greater than the length of the supporting rod (21), the top of the connecting rod (20) is hinged to the first hoop (16), the bottom of the connecting rod (20) is fixed with a clamping piece (2001), the bottom of the supporting rod (21) is hinged to the second hoop (17), the top of the supporting rod (21) is fixed with a hook (2101), and the clamping piece (2001) is hingedly connected to the hook (2101).

2. The drainage network source tracing device according to claim 1, characterized in that: The inner connecting rod assembly (11) comprises a rotating handle (1101), a reinforcing fixing piece (1102) and a threaded screw (1103); a mounting groove is provided at the bottom of the rotating handle (1101); the reinforcing fixing piece (1102) is fixed in the mounting groove; and the threaded screw (1103) is fixed at the bottom of the reinforcing fixing piece (1102); A flange pipe interface (1201) is fixed to the top of the outer telescopic sleeve (12), and the flange pipe interface (1201) is snapped into the assembly groove and rotated to match the rotating handle (1101). The reinforcing fixing member (1102) extends into the flange pipe interface (1201), and the threaded screw (1103) extends into the outer telescopic sleeve (12), and the threaded screw (1103) has a motion stroke that rotates inside the outer telescopic sleeve (12) as the rotating handle (1101) rotates.

3. The drainage network source tracing device according to claim 2, characterized in that: The inner telescopic tube assembly (13) comprises a sliding sleeve (14) and an inner sleeve (15); The outer telescopic sleeve (12) has a mounting cavity (1202) longitudinally formed inside the tube body, and a plurality of slide grooves (1203) are longitudinally formed on the inner wall surface of the mounting cavity (1202). The outer wall surface of the sliding sleeve (14) has a plurality of ribs (1401) longitudinally fixed thereto, and the ribs (1401) are matched with the sliding grooves (1203) in a sliding manner. The sliding sleeve (14) has a threaded through groove (1402) longitudinally formed inside the tube body, and the threaded through groove (1402) is matched with the threaded screw (1103). Under the rotation drive of the threaded screw (1103), the sliding sleeve (14) has a movement stroke of sliding upward or downward along the mounting cavity (1202); The inner sleeve (15) is fixedly connected to the bottom of the sliding sleeve (14), and the threaded screw (1103) extends into the inner sleeve (15). The inner sleeve (15) has a movement stroke that extends or retracts into the outer telescopic sleeve (12) as the sliding sleeve (14) slides.

4. The drainage network source tracing device according to claim 1, characterized in that: The hanging mechanism (10) further includes a spring member (18) and a supporting member. The spring member (18) is sleeved on the outside of the outer telescopic sleeve (12) and is located between the first hoop (16) and the second hoop (17). The supporting member is fixed to the top of the first hoop (16) and extends upward. The spring member (18) can move along with the supporting member to drive the first hoop (16) to slide and thus have a compression or reset motion stroke.

5. The drainage network source tracing device according to claim 1, characterized in that: It also includes an assembly component (4) that is detachably mounted on the bottom of the telescopic rod mechanism (9), and the assembly component (4) includes a mounting plate (5), a U-shaped bracket (6), and a liquid sensor alarm (7); A threaded pipe interface (501) is fixed on the top of the mounting plate (5), and the inner telescopic tube assembly (13) also includes a threaded pipe column (1501) arranged at the bottom, and the threaded pipe interface (501) is threadably matched with the threaded pipe column (1501). The front of the mounting plate (5) is provided with a bolt member (502) that can be matched and installed with the shell of the signal sending component (2) or the signal receiving component (3). The back of the mounting plate (5) is provided with a slide rail (503) that can be slidably plugged into the U-shaped bracket (6), and the U-shaped bracket (6) is opened upward and is inserted at the back of the mounting plate (5) in an adjustable height. The liquid sensor alarm (7) is fixed to the bottom of the mounting plate (5).

6. The drainage network source tracing device according to claim 1, characterized in that: The signal transmitting component (2) comprises a signal transmitting host (201), a guide pin (202) and a wire (203), wherein the guide pin (202) is fixed to the bottom of the signal transmitting host (201), and the wire (203) is connected between the signal transmitting host (201) and an external control device and a power supply; The signal receiving component (3) comprises a signal receiving and analyzing host (301) and a probe (302). The probe (302) is fixed on the bottom of the signal receiving and analyzing host (301). The signal receiving and analyzing host (301) has a built-in power supply.

7. The drainage network source tracing device according to claim 1, characterized in that: The detection mechanism (1) is a ground penetrating radar, the signal emitting component (2) is used to emit electromagnetic waves in the form of radar wave signals, and the signal receiving component (3) is used to receive radar wave signals and analyze feedback.

8. The drainage network source tracing device according to claim 1, characterized in that: The detection mechanism (1) is a network cable finder, the signal emitting component (2) is used to emit electromagnetic waves in the form of electric pulse signals, and the signal receiving component (3) is used to receive the electric pulse signals and analyze the feedback.

9. A method for using a drainage network tracing device, characterized by: The method is implemented using the drainage network source tracing device according to claim 3, and comprises the following steps: S1: Observe the water level in the pipe (26) below the ground (22) with the naked eye and a flashlight or with a pipe detection instrument; S2: Extending a single tracing device for the signal emitting component (2) assembled at the bottom of the handheld operating unit (8) into the signal emitting well (23), and extending a plurality of tracing devices for the signal receiving component (3) assembled at the bottom of the handheld operating unit (8) into the signal receiving well a (24) and the signal receiving well b (25), respectively; S3: Pushing the first hoop (16) to open the hinged rod assembly (19), using the hook (2101) to hook or press against the wall of the inspection well, and rotating the rotating handle (1101) to gradually extend the inner sleeve (15) out of the outer telescopic sleeve (12); S4: When the pipeline (26) connected to the signal emitting well (23) and the signal receiving well is in an empty pipe state or the water level is less than 1 / 2 of the pipe position, the detection mechanism (1) uses a ground penetrating radar, and the electromagnetic wave is transmitted in the form of a radar wave signal in the pipeline (26). Since the attenuation of the radar wave signal in the air medium is much smaller than the attenuation in the soil of the stratum surrounding the pipeline (26), it is possible to quickly determine which of the signal receiving well a (24) and the signal receiving well b (25) is the inspection well connected to the upstream and downstream of the same pipeline (26) as the signal emitting well (23), thereby quickly achieving the purpose of tracing the source of the pipeline network; S5: When the pipeline (26) connecting the signal emitting well (23) and the signal receiving well is in a full pipe state or the water level is greater than 2 / 3 of the pipe position, the detection mechanism (1) adopts a network line finder, and the electromagnetic wave is conducted in the form of an electric pulse signal in the pipeline (26). The electric pulse signal uses the water in the pipeline (26) as a conductor, and can quickly determine which of the signal receiving well a (24) and the signal receiving well b (25) is the inspection well connected to the upstream and downstream of the same pipeline (26) as the signal emitting well (23), thereby quickly achieving the purpose of tracing the source of the pipeline network.

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