Advanced tunneling electromagnetic wave detector protection device

Abstract

The invention relates to the technical field of geotechnical engineering detection, in particular to an advanced tunneling electromagnetic wave detector protection device which comprises a bottom shell, a reinforcing support, a tapping device and a detector, the bottom shell comprises a motor notch, a motor support sliding rail, a drill bit auxiliary sliding rail and a reinforcing support notch, and the motor notch is formed in the center of the rear portion of the bottom shell. A motor notch is formed in the front end of the bottom shell, a motor support sliding rail is arranged on the outer side of the motor notch, a drill bit auxiliary sliding rail is installed at the front end of the motor support sliding rail, a reinforcing support notch is formed in the front end of the bottom shell, and the reinforcing support comprises a reinforcing support, a reinforcing rib, a positioning plate, a drill rod auxiliary sliding rail and a baffle limiting support. According to the electromagnetic wave detection device, through modular arrangement, the protection device and the detector are separately arranged in a matched mode, and it is guaranteed that the electromagnetic wave detection device can rapidly respond to emergencies while working stably.

Description

Technical Field

[0001] The present invention relates to the technical field of geotechnical engineering detection, and in particular to a protective device for an advanced excavation electromagnetic wave detector. Background Art

[0002] Electromagnetic wave detection is increasingly being developed and applied in the field of advanced detection technology. However, using electromagnetic wave detectors in rock formations requires drilling a hole and placing the detector there. Electromagnetic wave detectors can penetrate the soil structure ahead to detect more distant geological structures.

[0003] During advance tunneling, the likelihood of borehole deformation increases with increasing excavation depth. Because electromagnetic wave detectors operate by penetrating soil structures, they are not very sensitive to changes in the borehole they are located in. This means that if the top plate or front face of the borehole deforms, it is difficult to withdraw the electromagnetic wave detector in time, potentially damaging the equipment, increasing detection costs during advance tunneling, and wasting significant man-hours. Summary of the Invention

[0004] Therefore, the present invention provides an electromagnetic wave detection device for advance excavation, which can enhance the drilling strength and reduce the probability of emergencies when the electromagnetic wave detection device is working in the borehole, and can quickly recover the electromagnetic wave detector in the event of an emergency and protect it from damage. The present invention achieves the above-mentioned purpose through the following technical solutions:

[0005] An electromagnetic wave detection device for advanced tunneling, comprising: a bottom shell, a reinforcement bracket, a hole opening device, and a detector. The bottom shell comprises: a motor slot, a motor bracket slide rail, a drill bit auxiliary slide rail, and a reinforcement bracket slot. A motor slot is provided at the rear center of the bottom shell, a motor bracket slide rail is provided on the outside of the motor slot, a drill bit auxiliary slide rail is installed at the front end of the motor bracket slide rail, and a reinforcement bracket slot is provided at the front end of the bottom shell. The reinforcement bracket comprises: a reinforcement bracket, a reinforcement rib, a positioning plate, a drill rod auxiliary slide rail, and a baffle limiting bracket. The front end of the reinforcement rib is installed in the slot of the positioning plate, a drill rod auxiliary slide rail is provided at the upper end of the positioning plate, and a baffle limiting bracket is installed at the bottom of the rear end of the positioning plate. The hole opening device comprises: an active motor, a motor bracket, a positioning slide block, a drill bit auxiliary slide block, a main drill Head rotation motor, drill bit frame rotation shaft, drill bit frame moving motor, drill bit frame moving slide rail, drill bit frame, drill bit slide rail, drill bit rotation motor, execution drill bit, matching slide groove, the active motor is installed in the motor slot, a positioning slider is installed at the end of the motor bracket, the other end of the positioning slider is connected to the drill bit auxiliary slider, the drill bit auxiliary slider is connected to the main drill bit rotation motor, the drill bit frame rotation shaft is installed on the side of the main drill bit rotation motor, the drill bit frame rotation shaft is connected to the drill bit frame moving motor, the drill bit frame moving motor drives the drill bit frame moving slide rail to move, one side of the drill bit frame moving slide rail is connected to the drill bit frame, a drill bit slide rail is installed in the drill bit frame, a drill bit rotation motor is provided on the drill bit slide rail, an execution drill bit is installed on the drill bit rotation motor, and a matching slide groove is provided on the other side of the drill bit frame.

[0006] Preferably, the drill bit rotation motor can drive the drill bit to rotate with itself as the axis.

[0007] Preferably, the active motor can drive the motor bracket to control the positioning sliders on both sides to rotate synchronously on the motor bracket slide rails.

[0008] Preferably, the matching slide groove cooperates with the drill rod auxiliary slide rail, and the matching slide groove can slide on the drill rod auxiliary slide rail.

[0009] Preferably, the detector includes: a bottom rotating chassis, a matching rotating bracket, a baffle hydraulic main rod, a detector hydraulic main rod, a baffle hydraulic auxiliary rod, a front baffle, a detector slot, a limit plate slot, a detector mounting frame, a detector limit plate slot, a detector limit plate spring, a detector limit plate, a detector baffle, an electromagnetic wave detector, and a detector hydraulic auxiliary rod.

[0010] Preferably, the detector is installed inside the bottom shell, a bottom rotating chassis is installed in the center of the bottom shell, a matching rotating bracket is installed and operated on the bottom rotating chassis, a baffle hydraulic main rod is installed on the matching rotating bracket, and a detector hydraulic main rod is installed at the center of the bottom rotating chassis.

[0011] Preferably, the baffle hydraulic auxiliary rod is installed on the baffle hydraulic main rod, the front end of the baffle hydraulic auxiliary rod is installed with a front baffle, the central through hole of the front baffle is installed with a detector slot, and the outer edge of the detector slot is provided with two limit plate slots;

[0012] Preferably, one end of the detector hydraulic auxiliary rod is installed in the detector hydraulic main rod, and the other end of the detector hydraulic auxiliary rod can be inserted into the rear socket of the detector mounting frame. Detector limit plate grooves are installed on the upper and lower sides of the detector mounting frame, and a detector limit plate spring is installed in the detector limit plate groove. One end of the detector limit plate spring is connected to the detector limit plate groove, and the other end of the detector limit plate spring is connected to the detector limit plate. The detector baffle is installed at the front end of the detector mounting frame, and the electromagnetic wave detector is installed in the detector hydraulic auxiliary rod.

[0013] Beneficial effects of the present invention:

[0014] 1. The present invention adopts a modular setting, separating the protection device from the detector and setting them together, ensuring that the electromagnetic wave detector can quickly respond to emergencies (such as borehole deformation or abnormal pressure) when working in the borehole, and realize the rapid recovery and protection of the detector, effectively reducing the risk of equipment damage, reducing detection costs and waste of work time.

[0015] 2. The present invention enhances the stability of the drilling structure and reduces the possibility of drilling deformation and collapse by strengthening the coordination design of the bracket and the baffle limit bracket, thereby providing a safer working environment for the electromagnetic wave detector and further improving the efficiency and reliability of advanced detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the device of the present invention.

[0017] Figure 2 It is a schematic diagram of the bottom shell structure of the present invention.

[0018] Figure 3 This is a schematic diagram of the reinforcing bracket structure of the present invention.

[0019] Figure 4 It is a schematic diagram of the coordinated structure of the bottom shell and the hole-opening device of the present invention.

[0020] Figure 5 Schematic diagram of the hole opening device structure of the present invention Figure 5 -A.

[0021] Figure 6 This is a schematic diagram of the 5-A structure of the present invention.

[0022] Figure 7 Schematic diagram of the drill bit frame structure of the hole opening device of the present invention Figure 7 -A.

[0023] Figure 8 This is a schematic diagram of the structure of 7-A of the present invention.

[0024] Figure 9 This is a schematic diagram of the drill bit holder structure in a collapsed state according to the present invention.

[0025] Figure 10 This is a schematic diagram of the detector structure in the bottom shell of the present invention.

[0026] Figure 11 This is a schematic diagram of the detector and front baffle structure of the present invention.

[0027] Figure 12 Schematic diagram of the structure of the detector and the front baffle of the present invention Figure 12 -A.

[0028] Figure 13 This is a schematic diagram of the structure of 12-A of the present invention

[0029] Figure 14 This is a schematic diagram of the matching structure of the detector mounting bracket and the detector of the present invention.

[0030] Description of reference numerals:

[0031] 1. Bottom shell; 101. Motor notch; 102. Motor bracket slide; 103. Drill bit auxiliary slide; 104. Reinforcement bracket notch; 2. Reinforcement bracket; 201. Reinforcement rib; 202. Positioning plate; 203. Drill rod auxiliary slide; 204. Baffle limit bracket; 3. Hole opening device; 301. Active motor; 302. Motor bracket; 303. Positioning slider; 304. Drill bit auxiliary slide; 305. Main drill bit rotation motor; 306. Drill bit holder rotation axis; 307. Drill bit holder moving motor; 308. Drill bit holder moving slide; 309. Drill bit holder; 310. Drill bit slide ; 311, drill bit rotation motor; 312, drill bit execution; 313, matching slide; 4, detector; 401, bottom rotating chassis; 402, matching rotating bracket; 403, baffle hydraulic main rod; 404, detector hydraulic main rod; 405, baffle hydraulic auxiliary rod; 406, front baffle; 407, detector slot; 408, limit plate slot; 409, detector mounting bracket; 410, detector limit plate slot; 411, detector limit plate spring; 412, detector limit plate; 413, detector baffle; 414, electromagnetic wave detector; 415, detector hydraulic auxiliary rod. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that it is easy for a person skilled in the art to implement these embodiments. However, the present invention can also be implemented in various different forms. Therefore, the present invention is not limited to the embodiments described below. In addition, in order to more clearly describe the present invention, parts that are not connected to the present invention will be omitted from the accompanying drawings.

[0033] like Figure 1-14 As shown, an electromagnetic wave detection device for advance tunneling includes: a bottom shell 1, a reinforcement bracket 2, a hole opening device 3, and a detector 4. The reinforcement bracket 2 and the detector 4 are installed inside the bottom shell 1, and the hole opening device 3 is installed on the outer edge;

[0034] like Figure 2 As shown, the bottom shell 1 includes: a motor notch 101, a motor support slide rail 102, a drill auxiliary slide rail 103, and a reinforcement support notch 104;

[0035] At the rear center of the bottom shell 1, there is a motor notch 101. The outer edge of the motor notch 101 is provided with a motor support slide rail 102. The front end of the motor support slide rail 102 is installed with a drill auxiliary slide rail 103. At the front end of the bottom shell 1, there is a reinforcement bracket notch 104.

[0036] like Figure 3 As shown, the reinforcement bracket 2 includes: a reinforcement bracket 2, a reinforcement rib 201, a positioning plate 202, a drill rod auxiliary slide rail 203, and a baffle limiting bracket 204;

[0037] The main body of the reinforcing rib 201 of the reinforcing bracket 2 is a semicircular arc plate, the front end of which is installed in the groove of the positioning plate 202. The upper part of the front end of the positioning plate 202 is installed with a drill rod auxiliary slide rail 203, and the bottom of the rear end is installed with a baffle limit bracket 204;

[0038] like Figure 4 、 5 As shown in Figures 9, 7, 8, and 9, the drilling device 3 includes: an active motor 301, a motor bracket 302, a positioning slider 303, a drill auxiliary slider 304, a main drill rotation motor 305, a drill rack rotation shaft 306, a drill rack moving motor 307, a drill rack moving slide rail 308, a drill rack 309, a drill slide rail 310, a drill rotation motor 311, an executing drill bit 312, and a matching slide groove 313;

[0039] like Figure 4As shown, the active motor 301 of the hole-opening device 3 is installed in the motor slot 101, and the motor bracket 302 is installed on the driving part thereof. A positioning slider 303 is installed at the end of the motor bracket 302. The rear portion of the positioning slider 303 is installed on the motor bracket 302, and the bottom portion is installed on the motor bracket slide rail 102. The other end of the positioning slider 303 is connected to a drill auxiliary slider 304 installed and running on the drill auxiliary slide rail 103;

[0040] like Figure 5 、 6 As shown, one end of the drill bit auxiliary slider 304 is connected to the main drill bit rotation motor 305, and a drill bit frame rotation shaft 306 is installed on the side of the main drill bit rotation motor 305. The drill bit frame rotation shaft 306 is connected to the drill bit frame moving motor 307. The drill bit frame moving motor 307 controls and operates the drill bit frame moving slide 308 inside. The drill bit frame moving slide 308 is connected to and operates the rotating motor of the drill bit frame 309;

[0041] like Figure 7 、 8 As shown, a drill slide 310 is installed in the drill bit holder 309. The drill slide 310 drives a drill rotation motor 311 through electrical control. An execution drill bit 312 is installed on the drill rotation motor 311. The drill rotation motor 311 can drive the execution drill bit 312 to rotate around itself as the axis. A matching slide groove 313 is provided on the back of the drill bit holder 309.

[0042] like Figure 4 、 9 As shown, the active motor 301 of the hole-opening device 3 can drive the motor bracket 302 to control the positioning sliders 303 on both sides to rotate synchronously on the motor bracket slide rails 102, thereby controlling the drill auxiliary slider 304 connected thereto to run on the drill auxiliary slide rails 103, thereby synchronously driving the main drill rotation motor 305 to run on the outer surface of the bottom shell 1;

[0043] The main drill bit rotation motor 305 can control the side drill bit frame rotation axis 306 to rotate about its own axis, and at the same time control the drill bit frame moving motor 307 connected to it to rotate about the drill bit frame rotation axis 306. The drill bit frame moving slide 308 installed on the drill bit frame moving motor 307 can drive the rotary motor of the drill bit frame 309 to move on the drill bit frame moving slide 308.

[0044] like Figure 10 、 11, 12, 13, 14: The detector 4 includes: a bottom rotating chassis 401, a matching rotating bracket 402, a baffle hydraulic main rod 403, a detector hydraulic main rod 404, a baffle hydraulic auxiliary rod 405, a front baffle 406, a detector notch 407, a limit plate notch 408, a detector mounting frame 409, a detector limit plate slot 410, a detector limit plate spring 411, a detector limit plate 412, a detector baffle 413, an electromagnetic wave detector 414, and a detector hydraulic auxiliary rod 415;

[0045] like Figure 10 As shown, the detector 4 is installed inside the bottom shell 1, and a bottom rotating chassis 401 is installed in the center of the bottom shell 1. A matching rotating bracket 402 is installed and operates on the bottom rotating chassis 401, and a baffle hydraulic main rod 403 is installed on the matching rotating bracket 402. A detector hydraulic main rod 404 is installed at the center of the bottom rotating chassis 401;

[0046] like Figure 11 As shown, the baffle hydraulic auxiliary rod 405 is installed on the baffle hydraulic main rod 403, and a front baffle 406 is installed at the front end of the baffle hydraulic auxiliary rod 405. A detector slot 407 is installed at the central through hole of the front baffle 406, and the outer edge of the detector slot 407 has two limit plate slots 408;

[0047] like Figure 12 、 13 14, one end of the detector hydraulic auxiliary rod 415 is installed in the detector hydraulic main rod 404, and the other end of the detector hydraulic auxiliary rod 415 can be inserted into the rear socket of the detector mounting frame 409. Detector limit plate slots 410 are installed on the upper and lower sides of the detector mounting frame 409. A detector limit plate spring 411 is installed in the detector limit plate slot 410. One end of the detector limit plate spring 411 is connected to the detector limit plate slot 410, and the other end is connected to the detector limit plate 412. The detector baffle 413 is installed at the front end of the detector mounting frame 409, and the electromagnetic wave detector 414 is installed in the detector hydraulic auxiliary rod 415;

[0048] Working principle of the present invention:

[0049] First, the worker installs each reinforcement bracket in the reinforcement bracket slot 104 (such as Figure 1 As shown), the drill rod auxiliary slide rail 203 of the positioning plate 202 faces the front end of the bottom shell 1, and at this time the hole opening device 3 is as shown Figure 9 As shown, the drill bit rotation motor 311 for executing the drill bit 312 is located at the right end of the drill bit frame 309, and the front end of the drill bit 312 is facing the left end of 309. In addition, on the front baffle 406 of the detector 4, the detector limit plate 412 is prevented from being bounced up by the detector limit plate spring 411 through the limit plate notch 408, and the device is assembled.

[0050] After drilling a hole in the rock wall, the worker moves the bottom shell 1 to the front of the hole so that the bottom shell 1 is coaxial with the hole, and the starting device starts working.

[0051] At this time, the main drill rotating motor 305 of the hole-opening device 3 is in the state of Figure 9 As shown, the main drill bit rotating motor 305 starts the drill bit frame rotating shaft 306, and the drill bit frame rotating shaft 306 rotates the drill bit frame moving motor 307, so that the drill bit frame 9 rotates to the front end of the bottom shell 1, and then the drill bit frame moving motor 307 rotates the drill bit frame moving slide 308, and the drill bit frame moving slide 308 drives the drill bit frame 309 to move, as shown in FIG. Figure 6 As shown;

[0052] The drill bit rotation motor 311 inside the drill bit holder 309 controls the execution drill bit 312 to rotate so that the front end of the execution drill bit 312 points to the drill hole. Then the drill bit slide 310 controls the drill bit rotation motor 311 to raise the execution drill bit 312 to the center of the drill rod auxiliary slide 203 of the reinforcing bracket 2. The drill bit rotation motor 311 starts the execution drill bit 312 and starts drilling at the upper end of the drill hole.

[0053] After the drilling is completed, the active motor 301 starts the motor bracket 302, controls the main drill rotation motor 305 to start rotating around the bottom shell 1, and at the same time drives the drill bracket 309 to rotate around the drill rod auxiliary slide 203 through the drill slide rail 310 to the next reinforcement bracket 2, and the front end of the reinforcement rib 201 of the reinforcement bracket 2 on which the motor has moved will be pulled out from the front end slot of the positioning plate 202 by the worker and installed in the hole drilled by the execution drill bit 312. When the end of the reinforcement rib 201 reaches the front end slot of the positioning plate 202, one end of the baffle limit bracket 204 of the positioning plate 202 is directly inserted outward into the drilled hole;

[0054] After the holes are drilled in sequence and all the reinforcing brackets 2 in the reinforcing bracket slots 104 are installed, the outer periphery of the drilled holes is reinforced by the reinforcing ribs 201, and the baffle limiting bracket 204 at the lower part of the positioning plate 202 forms a fixed ring, the baffle hydraulic main rod 403 of the detector 4 retracts the baffle hydraulic auxiliary rod 405, and after the front baffle 406 is installed on the fixed ring formed by the baffle limiting bracket 204, the detector hydraulic main rod 404 is started to retract the detector hydraulic auxiliary rod 415 and insert it into the rear plug hole of the detector mounting bracket 409, and the detector mounting bracket 409 is pushed out of the detector slot 407 as a whole. During this process, the detector limiting plate slot 410 is separated from the limiting plate slot 408 as the detector mounting bracket 409 is separated from the detector limiting plate spring 411 installed in the detector limiting plate slot 410 will bounce one end of the detector limiting plate 412 upward, and then the detector baffle 413 is opened, and the electromagnetic wave detector 414 is extended from the detector hydraulic auxiliary rod 415 to start the detection work;

[0055] Because the borehole is reinforced by the reinforcing bracket 2, it is rare to encounter collapse around the borehole. If extraordinary pressure is encountered, causing the pressure around the borehole to increase, the reinforcing rib 201 of the reinforcing bracket 2 will encounter extraordinary pressure. If there is downward pressure, it will be transmitted to the front baffle 406 through the baffle limit bracket 204, and the two will share the burden. If an emergency occurs before the borehole is drilled, the detector hydraulic sub-rod 415 will retract the electromagnetic wave detector 414 into the detector mounting bracket 409, close the detector baffle 413, and then pull the detector hydraulic sub-rod 415 backward to clamp the front baffle 406 through the detector limit plate 412 to withstand the drilling pressure in front.

Claims

1. A protection device for an electromagnetic wave detector for advanced tunneling, comprising: A bottom shell (1), a reinforcing bracket (2), a hole opening device (3), and a detector (4); the characteristics are: the bottom shell (1) includes: a motor notch (101), a motor bracket slide rail (102), a drill bit auxiliary slide rail (103), and a reinforcing bracket notch (104); a motor notch (101) is provided at the rear center of the bottom shell (1); a motor bracket slide rail (102) is provided on the outside of the motor notch (101); a drill bit auxiliary slide rail (103) is installed at the front end of the motor bracket slide rail (102); a reinforcing bracket notch (104) is provided at the front end of the bottom shell (1); the reinforcing bracket (2) The invention comprises: a reinforcing bracket (2), a reinforcing rib (201), a positioning plate (202), a drill rod auxiliary slide rail (203), and a baffle limiting bracket (204); the front end of the reinforcing rib (201) is installed in the notch of the positioning plate (202); the upper end of the positioning plate (202) is provided with a drill rod auxiliary slide rail (203); the rear end bottom of the positioning plate (202) is provided with a baffle limiting bracket (204); the hole opening device (3) comprises: an active motor (301), a motor bracket (302), a positioning slide block (303), a drill bit auxiliary slide block (304), a main drill bit rotating motor (305), a drill bit The drill frame rotation shaft (306), the drill frame moving motor (307), the drill frame moving slide rail (308), the drill frame (309), the drill slide rail (310), the drill rotating motor (311), the execution drill (312), the matching slide groove (313), the active motor (301) is installed in the motor notch (101), the end of the motor bracket (302) is installed with a positioning slider (303), the other end of the positioning slider (303) is connected to the drill auxiliary slider (304), the drill auxiliary slider (304) is connected to the main drill rotating motor (305), the main drill rotating motor A drill frame rotating shaft (306) is installed on the side of (305), and the drill frame rotating shaft (306) is connected to the drill frame moving motor (307). The drill frame moving motor (307) drives the drill frame moving slide rail (308) to move. One side of the drill frame moving slide rail (308) is connected to the drill frame (309). A drill slide rail (310) is installed in the drill frame (309). A drill rotating motor (311) is provided on the drill slide rail (310). An execution drill bit (312) is installed on the drill rotating motor (311). A matching slide groove (313) is provided on the other side of the drill frame (309).

2. The advance tunneling electromagnetic wave detector protection device according to claim 1, characterized in that: The drill bit rotation motor (311) can drive the drill bit (312) to rotate with itself as the axis.

3. The advance tunneling electromagnetic wave detector protection device according to claim 1, characterized in that: The active motor (301) can drive the motor bracket (302) to control the positioning sliders (303) on both sides to rotate synchronously on the motor bracket slide rails (102).

4. The advance tunneling electromagnetic wave detector protection device according to claim 1, characterized in that: The matching slide groove (313) matches with the drill rod auxiliary slide rail (203), and the matching slide groove (313) can slide on the drill rod auxiliary slide rail (203).

5. The advance tunneling electromagnetic wave detector protection device according to claim 1, characterized in that: The detector (4) comprises: a bottom rotating chassis (401), a matching rotating bracket (402), a baffle hydraulic main rod (403), a detector hydraulic main rod (404), a baffle hydraulic auxiliary rod (405), a front baffle (406), a detector notch (407), a limit plate notch (408), a detector mounting frame (409), a detector limit plate slot (410), a detector limit plate spring (411), a detector limit plate (412), a detector baffle (413), an electromagnetic wave detector (414), and a detector hydraulic auxiliary rod (415).

6. The advance tunneling electromagnetic wave detector protection device according to claim 5, characterized in that: The detector (4) is installed inside the bottom shell (1). A bottom rotating chassis (401) is installed in the center of the bottom shell (1). A matching rotating bracket (402) is installed and operates on the bottom rotating chassis (401). A baffle hydraulic main rod (403) is installed on the matching rotating bracket (402). A detector hydraulic main rod (404) is installed at the center of the bottom rotating chassis (401).

7. The advance tunneling electromagnetic wave detector protection device according to claim 6, characterized in that: The baffle hydraulic auxiliary rod (405) is installed on the baffle hydraulic main rod (403), the front end of the baffle hydraulic auxiliary rod (405) is installed with a front baffle (406), the central through hole of the front baffle (406) is installed with a detector notch (407), and the outer edge of the detector notch (407) is provided with two limit plate notches (408).

8. The advance tunneling electromagnetic wave detector protection device according to claim 7, characterized in that: One end of the detector hydraulic auxiliary rod (415) is installed in the detector hydraulic main rod (404), and the other end of the detector hydraulic auxiliary rod (415) can be inserted into the rear jack of the detector mounting frame (409). Detector limiting plate grooves (410) are installed on the upper and lower sides of the detector mounting frame (409), and a detector limiting plate spring (411) is installed in the detector limiting plate groove (410). One end of the detector limiting plate spring (411) is connected to the detector limiting plate groove (410), and the other end of the detector limiting plate spring (411) is connected to the detector limiting plate (412). The detector baffle (413) is installed at the front end of the detector mounting frame (409), and the electromagnetic wave detector (414) is installed in the detector hydraulic auxiliary rod (415).

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