Multifunctional excavating early warning device and excavating early warning method

Abstract

The application discloses a multifunctional excavating early warning device and method, and relates to the technical field of excavating early warning, which comprises a shovel and a quick release device, wherein the top of the shovel is fixedly installed with a connecting piece, the front side of the shovel is fixedly installed with a sealing frame, and the front side of the sealing frame is slidably installed with a sealing door; the quick release device comprises a placing rod, a placing plate, a detector body, a mounting groove, a mounting frame, a mounting rod, a protection hole, a stabilizing rod and an L-shaped rod; the detector body inside the sealing frame continues to move to make the mounting rod contact with the mounting groove; when the mounting rod contacts with the mounting groove, the mounting rod moves upward to reset and contact with the inner wall of the mounting groove and restore the limiting of the detector body to complete the installation of the detector body; and the L-shaped rod can effectively prevent the detector body from being mistakenly released due to being hit by foreign matters during the excavation process, so as to reduce the risk of damage and mistaken release of the detector body.

Description

Technical Field

[0001] This invention relates to the field of excavation early warning technology, specifically to a multifunctional excavation early warning device and excavation early warning method. Background Technology

[0002] A multi-functional excavation early warning device typically consists of a disassembly device, a protection device, a detector body, and an early warning module.

[0003] Patent publication number CN208796426U relates to an excavator-mounted radar landslide early warning device, comprising two support plates connected by a central pivot. Each support plate has a pair of buckles at both ends, and sliding grooves on both sides of the support plates. A slider engages within the sliding groove, and an early warning radar is fixed to the slider. A housing is mounted on the early warning radar, containing a battery. A solar panel is mounted above the housing. Grooves are located at the bottom of the two support plates, containing four adjusting rods arranged in two groups of two within the two grooves. This excavator-mounted radar landslide early warning device features a reasonable structural design, ease of use, portability, and high degree of freedom, significantly improving the accuracy and timeliness of landslide prediction.

[0004] The aforementioned patents feature reasonable structural design, ease of use, portability, and high degree of freedom, which can significantly improve the accuracy of slope slip prediction and the timeliness of early warning. However, it is difficult to quickly disassemble and install the detector body. If the detector body is difficult to disassemble, maintenance and repair work will become complicated and time-consuming, resulting in a long repair cycle when the equipment fails, which will affect the normal progress of excavation operations. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a multifunctional excavation early warning device and excavation early warning method, solving the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multifunctional excavation early warning device, comprising a bucket and a quick-release device, wherein a connector is fixedly installed on the top of the bucket, a sealing frame is fixedly installed on the front side of the bucket, and a sealing door is slidably installed on the front side of the sealing frame; the quick-release device comprises a placement rod, a placement plate, a detector body, a mounting groove, a mounting frame, a mounting rod, a protective hole, a stabilizing rod, and an L-shaped rod; the detector body, entering the sealing frame, continues to move so that the mounting rod contacts the mounting groove; when the mounting rod contacts the mounting groove, the mounting rod moves upward to reset and contact the inner wall of the mounting groove, restoring the limiting position on the detector body and completing the installation of the detector body; the placement rod is fixedly installed on the inner wall of the sealing frame, the placement plate is slidably installed on the circumferential surface of the placement rod, the detector body is disposed inside the sealing frame, the mounting groove is opened at the bottom of the detector body, the mounting frame is fixedly installed at the bottom of the sealing frame, the mounting rod slidably penetrates the inner and outer walls of the mounting frame, the protective hole is opened on the front and rear walls of the mounting rod, the stabilizing rod is fixedly installed on the front side of the mounting frame, and the L-shaped rod is slidably installed on the circumferential surface of the stabilizing rod.

[0007] According to the above technical solution, a first spring is provided between the placement rod and the placement plate. The first spring can drive the placement plate to reset. The mounting rod is in contact with the inner wall of the mounting groove, and the detector body is in contact with the inner wall of the sealing frame.

[0008] According to the above technical solution, a second spring is provided between the mounting frame and the mounting rod, which can drive the mounting rod to reset. A third spring is provided between the stabilizing rod and the L-shaped rod, which can drive the L-shaped rod to reset. The L-shaped rod is in contact with the inner wall of the protective hole.

[0009] According to the above technical solution, a shielding device for improving the sealing performance of the sealing frame is provided on the top of the sealing frame. A protective device is provided on the top of the sealing frame. The shielding device includes a linkage block, a sealing plate, a sealing groove, a shielding plate, a protective groove, an L-shaped plate, and a transmission frame. The movement of the sealing door drives the movement of the L-shaped plate to shield and seal the top of the protective groove, further enhancing the sealing performance of the sealing frame. The linkage block is fixedly installed on the top of the placement plate. The sealing plate is fixedly installed on the front side of the linkage block. The sealing groove is opened on the top of the sealing frame. The shielding plate is slidably installed on the top of the sealing frame. The protective groove is opened on the surface of the shielding plate. The L-shaped plate is fixedly installed on the side of the sealing door away from the linkage block. The transmission frame is fixedly installed on the top of the shielding plate. The sealing performance of the sealing frame can be further improved by the shielding of the sealing plate.

[0010] According to the above technical solution, a No. 4 spring is provided between the shield and the sealing frame. One end of the No. 4 spring is set on the surface of the shield and the other end is set on the top of the sealing frame. The No. 4 spring can drive the shield to reset. The end of the shield away from the sealing door is set as an inclined surface. The detector body is in contact with the protective groove. There are two sets of sealing grooves, shields and protective grooves.

[0011] According to the above technical solution, the protection device includes a support frame, a support hole, a support rod, a displacement rod, a displacement hole, an inclined plate, and a clamping rod. The inclined plate moves to contact the clamping rod and squeezes it. The clamping rod moves downward under the pressure of the inclined plate to assist in clamping and fixing the side of the detector body. The support frame is fixedly installed on the top of the sealing frame. The support hole is opened on the top of the support frame. The support rod is fixedly installed on the inner wall of the support hole. The displacement rod is slidably installed on the circumferential surface of the support rod. The displacement hole is opened on the top of the displacement rod. The inclined plate is fixedly installed on the inner wall of the displacement hole. The clamping rod slides through the top of the sealing frame.

[0012] According to the above technical solution, a No. 5 spring is provided between the support hole and the support rod. The No. 5 spring can drive the displacement rod to reset. The bottom of the inclined panel is in contact with the clamping rod, and the displacement rod is in contact with the transmission frame.

[0013] According to the above technical solution, a No. 6 spring is provided between the clamping rod and the sealing frame. One end of the No. 6 spring is located on the surface of the clamping rod and the other end is located on the top of the inner wall of the sealing frame. The No. 6 spring can drive the clamping rod to reset. The clamping rod is in contact with the detector body. The elastic coefficient of the No. 5 spring is greater than that of the No. 6 spring.

[0014] A warning method for a multifunctional excavation warning device includes the following steps:

[0015] Step 1: After the detector body is inspected and maintained, manually pull the L-shaped rod to move it away from the bucket. The L-shaped rod moves away from the bucket to disengage from the protective hole and release the limit on the mounting rod. After the limit on the mounting rod is released, manually pull the mounting rod downward.

[0016] Step 2: The mounting rod moves downward to compress the second spring. The second spring deforms and stores force under the compression of the mounting rod. At the same time, the detector body is placed inside the sealing frame. The detector body inside the sealing frame contacts the placement plate and compresses the placement plate. The placement plate moves towards the bucket under the compression of the detector body.

[0017] Step 3: The placement plate moves towards the bucket and compresses the first spring. The first spring deforms and stores force under the compression of the placement plate. At the same time, the detector body inside the sealing frame continues to move so that the mounting rod contacts the mounting groove. When the mounting rod contacts the mounting groove, the mounting rod moves upward and resets under the elastic force of the second spring. The mounting rod moves upward and resets, contacts the inner wall of the mounting groove, and restores the limit on the detector body, completing the installation of the detector body.

[0018] Step 4: After the detector body is installed stably, manually pull the sealing door to move it longitudinally to restore the seal on the sealing frame. After the seal on the sealing frame is restored, start the detector body to detect the pipeline crossing under the channel. When the detector body detects a metal pipeline, it will automatically alarm to remind the operator to stop the dredging operation.

[0019] This invention provides a multifunctional excavation early warning device. It has the following beneficial effects:

[0020] (1) In this invention, the detector body has a built-in metal detection module. When a metal pipe is detected, it will automatically alarm and remind the operator to stop the dredging and mud-dredging operation. When the detector body needs to be inspected and maintained, the L-shaped rod needs to be manually pulled away from the bucket. The L-shaped rod moves away from the bucket and disengages from the protective hole and releases the limit on the mounting rod. The L-shaped rod can effectively prevent the detector body from being accidentally disassembled due to impact from foreign objects during the excavation process, thereby reducing the risk of damage and accidental disassembly of the detector body and improving the detection accuracy and reliability. The installation of the detector body is completed by moving the mounting rod upward to reset it to contact the inner wall of the mounting groove and restore the limit on the detector body. The convenient installation process reduces the time required for maintenance and replacement.

[0021] (2) In this invention, after the baffle plate is separated from the linkage block, the baffle plate moves towards the detector body under the elastic force of the fourth spring to seal the top of the sealing groove. The movement of the sealing door drives the L-shaped plate to move and block and seal the top of the protective groove, further enhancing the sealing performance of the sealing frame. The enhanced sealing performance can effectively prevent mud from entering the sealing frame and damaging the detector body, reducing the risk of damage to the detector body. Furthermore, the enhanced sealing performance helps to maintain the stability of the internal components of the detector body, improve detection accuracy and reliability, and ensure that the detector can work normally under different conditions.

[0022] (3) In this invention, the displacement rod moves away from the L-shaped plate under the elastic action of the No. 5 spring. The movement of the displacement rod away from the L-shaped plate causes the inclined plate to move. The inclined plate moves and contacts the clamping rod and squeezes the clamping rod. The clamping rod moves downward under the squeeze of the inclined plate to assist in clamping and fixing the side of the detector body. The squeeze of the clamping rod provides additional side support, reduces the displacement or shaking of the detector during operation, improves the stability of the overall equipment, and the auxiliary clamping can ensure that the detector body is more tightly fixed in the predetermined position, improving the accuracy of detection. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of the sealing frame of the present invention;

[0025] Figure 3 For the present invention Figure 2 Enlarged schematic diagram of section A in the middle;

[0026] Figure 4 This is a schematic diagram showing the position and structure of the sealing door and the L-shaped plate of the present invention;

[0027] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of section B;

[0028] Figure 6 This is a schematic diagram showing the position and structure of the shielding plate and the transmission frame of the present invention;

[0029] Figure 7 This is a schematic diagram showing the position and structure of the placement plate and the detector body of the present invention.

[0030] In the diagram: 1. Bucket; 2. Connector; 3. Sealing frame; 4. Sealing door; 5. Placement rod; 6. Placement plate; 7. Detector body; 8. Mounting groove; 9. Mounting frame; 10. Mounting rod; 11. Protective hole; 12. Stabilizing rod; 13. L-shaped rod; 141. Linkage block; 142. Sealing plate; 143. Sealing groove; 144. Shielding plate; 145. Protective groove; 146. L-shaped plate; 147. Transmission frame; 151. Support frame; 152. Support hole; 153. Support rod; 154. Displacement rod; 155. Displacement hole; 156. Sloping panel; 157. Clamping rod. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figures 1-7 One embodiment of the present invention is a multifunctional excavation early warning device, including a bucket 1 and a quick-release device. A connector 2 is fixedly installed on the top of the bucket 1, a sealing frame 3 is fixedly installed on the front side of the bucket 1, and a sealing door 4 is slidably installed on the front side of the sealing frame 3. The quick-release device includes a placement rod 5, a placement plate 6, a detector body 7, a mounting groove 8, a mounting frame 9, a mounting rod 10, a protective hole 11, a stabilizing rod 12, and an L-shaped rod 13. The placement rod 5 is fixedly installed on the inner wall of the sealing frame 3, the placement plate 6 is slidably installed on the circumferential surface of the placement rod 5, the detector body 7 is disposed inside the sealing frame 3, the mounting groove 8 is opened at the bottom of the detector body 7, the mounting frame 9 is fixedly installed at the bottom of the sealing frame 3, the mounting rod 10 slidably penetrates the inner and outer walls of the mounting frame 9, the protective hole 11 is opened on the front and rear walls of the mounting rod 10, the stabilizing rod 12 is fixedly installed on the front side of the mounting frame 9, and the L-shaped rod 13 is slidably installed on the circumferential surface of the stabilizing rod 12. The convenient installation process reduces the time required for maintenance and replacement of the detector body 7.

[0033] A first spring is provided between the placement rod 5 and the placement plate 6. The first spring can drive the placement plate 6 to reset. The mounting rod 10 contacts the inner wall of the mounting groove 8, and the detector body 7 contacts the inner wall of the sealing frame 3. The L-shaped rod 13 can effectively prevent the detector body 7 from being accidentally disassembled due to impact from foreign objects during the excavation process, thereby reducing the risk of damage and accidental disassembly of the detector body 7.

[0034] A second spring is provided between the mounting frame 9 and the mounting rod 10. The second spring can drive the mounting rod 10 to reset. A third spring is provided between the stabilizing rod 12 and the L-shaped rod 13. The third spring can drive the L-shaped rod 13 to reset. The L-shaped rod 13 contacts the inner wall of the protective hole 11.

[0035] A warning method for a multifunctional excavation warning device includes the following steps:

[0036] Step 1: After the detector body 7 has been inspected and maintained, manually pull the L-shaped rod 13 to move away from the bucket 1. The L-shaped rod 13 moves away from the bucket 1 to disengage from the protective hole 11 and release the limit on the mounting rod 10. After the limit on the mounting rod 10 is released, manually pull the mounting rod 10 downward.

[0037] Step 2: The mounting rod 10 moves downward to compress the second spring. The second spring deforms and stores force under the compression of the mounting rod 10. At the same time, the detector body 7 is placed inside the sealing frame 3. The detector body 7 inside the sealing frame 3 contacts the placement plate 6 and compresses the placement plate 6. The placement plate 6 moves towards the bucket 1 under the compression of the detector body 7.

[0038] Step 3: The placement plate 6 moves towards the bucket 1 to compress the first spring. The first spring deforms and stores force under the compression of the placement plate 6. At the same time, the detector body 7, which has entered the sealing frame 3, continues to move so that the mounting rod 10 contacts the mounting groove 8. When the mounting rod 10 contacts the mounting groove 8, the mounting rod 10 moves upward and resets under the elastic force of the second spring. The mounting rod 10 moves upward and resets to contact the inner wall of the mounting groove 8 and restores the limit on the detector body 7, thus completing the installation of the detector body 7.

[0039] Step 4: After the detector body 7 is installed stably, manually pull the sealing door 4 to move longitudinally to restore the seal on the sealing frame 3. After the seal on the sealing frame 3 is restored, start the detector body 7 to detect the pipeline crossing the channel. When the detector body 7 detects a metal pipeline, it will automatically alarm to remind the operator to stop the dredging operation.

[0040] In this embodiment, when the detector body 7 needs maintenance, first manually pull the sealing door 4 longitudinally to release the seal on the sealing frame 3. After the seal on the sealing frame 3 is released, manually pull the L-shaped rod 13 away from the bucket 1. The movement of the L-shaped rod 13 away from the bucket 1 pulls the No. 3 spring. The No. 3 spring deforms and stores force due to the pull of the L-shaped rod 13. At the same time, the movement of the L-shaped rod 13 away from the bucket 1 disengages from the protective hole 11 and releases the limit on the mounting rod 10. After the limit on the mounting rod 10 is released, manually pull the mounting rod 10 downwards. 10 moves downwards to disengage from the mounting slot 8 and release the limiting effect on the detector body 7. After the limiting effect on the detector body 7 is released, the placement plate 6 moves away from the bucket 1 under the elastic force of the first spring, ejecting the detector body 7 to complete the quick disassembly of the detector body 7. After the detector body 7 has been inspected and maintained, manually pull the L-shaped rod 13 away from the bucket 1. The L-shaped rod 13 moves away from the bucket 1 to disengage from the protective hole 11 and release the limiting effect on the mounting rod 10. After the limiting effect on the mounting rod 10 is released, manually pull the mounting rod 10 downwards. Mounting rod 10 moves downwards, compressing spring number two. Spring number two deforms and stores force under the pressure of mounting rod 10. Simultaneously, the detector body 7 is placed inside the sealing frame 3. The detector body 7 inside the sealing frame 3 contacts the placement plate 6 and compresses the placement plate 6. The placement plate 6 moves closer to the bucket 1 under the pressure of the detector body 7. The movement of the placement plate 6 towards the bucket 1 compresses spring number one. Spring number one deforms and stores force under the pressure of the placement plate 6. At the same time, the detector body 7 inside the sealing frame 3 continues to move, causing mounting rod 10 to contact the mounting groove 8, ready for installation. When rod 10 contacts the mounting groove 8, the mounting rod 10 moves upward and resets under the elastic force of spring No. 2. The mounting rod 10 moves upward and resets to contact the inner wall of the mounting groove 8 and restores the limit on the detector body 7, thus completing the installation of the detector body 7. After the detector body 7 is installed stably, the sealing door 4 is manually pulled to move longitudinally to restore the seal on the sealing frame 3. After the seal on the sealing frame 3 is restored, the detector body 7 is started to detect the pipeline crossing under the channel. The detector body 7 has a built-in metal detection module. When the detector body 7 detects a metal pipeline, it automatically alarms to remind the operator to stop the dredging operation.

[0041] Please see Figures 1-7Based on the above embodiments, in another embodiment of the present invention, a shielding device for improving the sealing performance of the sealing frame 3 is provided on the top of the sealing frame 3, and a protective device is provided on the top of the sealing frame 3. The shielding device includes a linkage block 141, a sealing plate 142, a sealing groove 143, a shielding plate 144, a protective groove 145, an L-shaped plate 146, and a transmission frame 147. The linkage block 141 is fixedly installed on the top of the placement plate 6, the sealing plate 142 is fixedly installed on the front side of the linkage block 141, the sealing groove 143 is opened on the top of the sealing frame 3, the shielding plate 144 is slidably installed on the top of the sealing frame 3, the protective groove 145 is opened on the surface of the shielding plate 144, the L-shaped plate 146 is fixedly installed on the side of the sealing door 4 away from the linkage block 141, and the transmission frame 147 is fixedly installed on the top of the shielding plate 144. Strengthening the sealing performance helps to maintain the stability of the components inside the detector body 7, improves the detection accuracy and reliability, and ensures that the detector body 7 can work normally under different conditions. The sealing performance of the sealing frame 3 can be further improved by the shielding of the sealing plate 142.

[0042] A No. 4 spring is provided between the shield plate 144 and the sealing frame 3. One end of the No. 4 spring is located on the surface of the shield plate 144, and the other end is located on the top of the sealing frame 3. The No. 4 spring can drive the shield plate 144 to reset. The end of the shield plate 144 away from the sealing door 4 is set as an inclined surface. The detector body 7 is in contact with the protective groove 145. There are two sets of sealing grooves 143, shield plates 144 and protective grooves 145.

[0043] The protective device includes a support frame 151, a support hole 152, a support rod 153, a displacement rod 154, a displacement hole 155, an inclined plate 156, and a clamping rod 157. The support frame 151 is fixedly installed on the top of the sealing frame 3. The support hole 152 is opened on the top of the support frame 151. The support rod 153 is fixedly installed on the inner wall of the support hole 152. The displacement rod 154 is slidably installed on the circumferential surface of the support rod 153. The displacement hole 155 is opened on the top of the displacement rod 154. The inclined plate 156 is fixedly installed on the inner wall of the displacement hole 155. The clamping rod 157 slides through the top of the sealing frame 3. The auxiliary clamping can ensure that the detector body 7 is more tightly fixed in the predetermined position, thereby improving the accuracy of the detection.

[0044] A No. 5 spring is provided between the support hole 152 and the support rod 153. The No. 5 spring can drive the displacement rod 154 to reset. The bottom of the inclined plate 156 contacts the clamping rod 157, and the displacement rod 154 contacts the transmission frame 147.

[0045] A No. 6 spring is provided between the clamping rod 157 and the sealing frame 3. One end of the No. 6 spring is located on the surface of the clamping rod 157 and the other end is located on the top of the inner wall of the sealing frame 3. The No. 6 spring can drive the clamping rod 157 to reset and contact the detector body 7. The elastic coefficient of the No. 5 spring is greater than that of the No. 6 spring.

[0046] In this embodiment, during operation: the placement plate 6 moves away from the bucket 1 under the elastic force of the first spring, causing the linkage block 141 to move. The linkage block 141 moves away from the bucket 1 and contacts the baffle plate 144, pressing the inclined surface of the baffle plate 144. The baffle plate 144, pressed by the linkage block 141, moves away from the detector body 7, pulling the fourth spring. The fourth spring deforms and stores force under the pull of the baffle plate 144. At the same time, the baffle plate 144, pressed by the linkage block 141, moves away from the detector body 7, disengaging from the sealing groove 143 and the detector body 7, thus facilitating the quick disassembly of the detector body 7. When the placement plate 6 is pressed by the detector body 7 and moves towards the bucket 1, the movement of the placement plate 6 towards the bucket 1 causes the linkage block 141 to move. The linkage block 141 moves towards the bucket 1 and disengages from the shield plate 144. After the shield plate 144 disengages from the linkage block 141, the shield plate 144 moves towards the detector body 7 under the elastic force of the fourth spring to seal the top of the sealing groove 143. At the same time, when the sealing door 4 is manually pulled to move longitudinally to restore the seal on the sealing frame 3, the movement of the sealing door 4 causes the L-shaped plate 146 to move to shield and seal the top of the protective groove 145, further enhancing the sealing performance of the sealing frame 3.

[0047] The shield 144, pressed by the linkage block 141, moves away from the detector body 7, causing the transmission frame 147 to move. The transmission frame 147 moves and contacts the displacement rod 154, pressing it. The displacement rod 154, pressed by the transmission frame 147, moves away from the L-shaped plate 146. The movement of the displacement rod 154 presses the fifth spring, causing it to deform and store force. Simultaneously, the movement of the displacement rod 154 away from the L-shaped plate 146 causes the inclined panel 156 to move. The inclined panel 156 moves away from the top of the clamping rod 157. After the clamping rod 157 is out of contact with the inclined panel 157, it moves upward under the elastic force of the sixth spring, resetting and disengaging from the detector body 7. The shield 144 then... When the fourth spring moves towards the detector body 7, the baffle plate 144 moves, causing the transmission frame 147 to move and disengage from the displacement rod 154. After the displacement rod 154 disengages from the transmission frame 147, it moves away from the L-shaped plate 146 under the elastic force of the fifth spring. The movement of the displacement rod 154 away from the L-shaped plate 146 causes the inclined plate 156 to move. The inclined plate 156 moves and contacts the clamping rod 157, pressing it. The clamping rod 157 moves downward under the pressure of the inclined plate 156, pulling the sixth spring. The sixth spring deforms and stores force under the pull of the clamping rod 157. At the same time, the clamping rod 157 moves downward under the pressure of the inclined plate 156, providing auxiliary clamping and fixing to the side of the detector body 7.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-functional excavation early warning device, comprising a bucket (1), characterized in that: It also includes a quick-release mechanism; The bucket (1) is fixedly installed with a connector (2) on the top, and a sealing frame (3) is fixedly installed on the front side of the bucket (1). A sealing door (4) is slidably installed on the front side of the sealing frame (3). The quick-release device includes a placement rod (5), a placement plate (6), a detector body (7), a mounting groove (8), a mounting frame (9), a mounting rod (10), a protective hole (11), a stabilizing rod (12), and an L-shaped rod (13). The placement rod (5) is fixedly installed on the inner wall of the sealing frame (3). The placement plate (6) is slidably installed on the circumferential surface of the placement rod (5). The detector body (7) is located inside the sealing frame (3). The mounting groove (8) is opened at the bottom of the detector body (7). The mounting frame (9) is fixedly installed at the bottom of the sealing frame (3). The mounting rod (10) slides through the inner and outer walls of the mounting frame (9). The protective hole (11) is opened on the front and rear walls of the mounting rod (10). The stabilizing rod (12) is fixedly installed on the front side of the mounting frame (9). The L-shaped rod (13) is slidably installed on the circumferential surface of the stabilizing rod (12). The sealing frame (3) is provided with a shielding device on the top to improve the sealing performance of the sealing frame (3), and a protective device is provided on the top of the sealing frame (3).

2. The multifunctional excavation early warning device according to claim 1, characterized in that: A first spring is provided between the placement rod (5) and the placement plate (6), the mounting rod (10) contacts the inner wall of the mounting groove (8), and the detector body (7) contacts the inner wall of the sealing frame (3).

3. The multifunctional excavation early warning device according to claim 2, characterized in that: A second spring is provided between the mounting frame (9) and the mounting rod (10), and a third spring is provided between the stabilizing rod (12) and the L-shaped rod (13). The L-shaped rod (13) is in contact with the inner wall of the protective hole (11).

4. The multifunctional excavation early warning device according to claim 3, characterized in that: The shielding device includes a linkage block (141), a sealing plate (142), a sealing groove (143), a shielding plate (144), a protective groove (145), an L-shaped plate (146), and a transmission frame (147). The linkage block (141) is fixedly installed on the top of the placement plate (6). The sealing plate (142) is fixedly installed on the front side of the linkage block (141). The sealing groove (143) is opened on the top of the sealing frame (3). The shielding plate (144) is slidably installed on the top of the sealing frame (3). The protective groove (145) is opened on the surface of the shielding plate (144). The L-shaped plate (146) is fixedly installed on the side of the sealing door (4) away from the linkage block (141). The transmission frame (147) is fixedly installed on the top of the shielding plate (144).

5. A multifunctional excavation early warning device according to claim 4, characterized in that: A No. 4 spring is provided between the shield (144) and the sealing frame (3). The end of the shield (144) away from the sealing door (4) is set as an inclined surface. The detector body (7) is in contact with the protective groove (145).

6. A multifunctional excavation early warning device according to claim 5, characterized in that: The protective device includes a support frame (151), a support hole (152), a support rod (153), a displacement rod (154), a displacement hole (155), an inclined plate (156), and a clamping rod (157). The support frame (151) is fixedly installed on the top of the sealing frame (3). The support hole (152) is opened on the top of the support frame (151). The support rod (153) is fixedly installed on the inner wall of the support hole (152). The displacement rod (154) is slidably installed on the circumferential surface of the support rod (153). The displacement hole (155) is opened on the top of the displacement rod (154). The inclined plate (156) is fixedly installed on the inner wall of the displacement hole (155). The clamping rod (157) slides through the top of the sealing frame (3).

7. A multifunctional excavation early warning device according to claim 6, characterized in that: A No. 5 spring is provided between the support hole (152) and the support rod (153), the bottom of the inclined plate (156) is in contact with the clamping rod (157), and the displacement rod (154) is in contact with the transmission frame (147).

8. A multifunctional excavation early warning device according to claim 7, characterized in that: A No. 6 spring is provided between the clamping rod (157) and the sealing frame (3), and the clamping rod (157) is in contact with the detector body (7).

9. A warning method for a multi-functional excavation warning device, using the multi-functional excavation warning device as described in claim 8, characterized in that, Includes the following steps: Step 1: After the detector body (7) has been inspected and maintained, manually pull the L-shaped rod (13) to move away from the bucket (1). The L-shaped rod (13) moves away from the bucket (1) to disengage from the protective hole (11) and release the limit on the mounting rod (10). After the limit on the mounting rod (10) is released, manually pull the mounting rod (10) downward. Step 2: The mounting rod (10) moves downward to compress the second spring. The second spring deforms and stores force under the compression of the mounting rod (10). At the same time, the detector body (7) is placed inside the sealing frame (3). The detector body (7) inside the sealing frame (3) contacts the placement plate (6) and compresses the placement plate (6). The placement plate (6) moves towards the bucket (1) under the compression of the detector body (7). Step 3: The placement plate (6) moves towards the bucket (1) to compress the first spring. The first spring deforms and stores force under the compression of the placement plate (6). At the same time, the detector body (7) inside the sealing frame (3) continues to move so that the mounting rod (10) contacts the mounting groove (8). When the mounting rod (10) contacts the mounting groove (8), the mounting rod (10) moves upward and resets under the elastic force of the second spring. The mounting rod (10) moves upward and resets to contact the inner wall of the mounting groove (8) and restores the limit on the detector body (7), thus completing the installation of the detector body (7). Step 4: After the detector body (7) is installed stably, manually pull the sealing door (4) to move longitudinally to restore the seal on the sealing frame (3). After the seal on the sealing frame (3) is restored, start the detector body (7) to detect the pipeline crossing the channel. When the detector body (7) detects a metal pipeline, it will automatically alarm to remind the operator to stop the dredging operation.

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