Construction device for slotting of CSM diaphragm wall

Abstract

The utility model provides a construction device for slotting a CSM diaphragm wall, which comprises an overturning part, a sand digging assembly is arranged at one end of the overturning part, a wheel milling assembly is arranged at the other end of the overturning part, a material pumping assembly is further arranged on the wheel milling assembly, the sand digging assembly comprises a sand digging support, and a plurality of first cross rods and second cross rods are arranged on the inner side of the sand digging support. A telescopic hydraulic rod is arranged on the first cross rod, a swingable bucket is arranged on the second cross rod, the wheel milling assembly comprises a milling wheel support, a plurality of transverse moving guide rails are arranged on the two sides of the milling wheel support, a movable driving support is arranged on the transverse moving guide rails, a wheel milling driver is arranged on the driving support, and a milling wheel supporting frame is arranged below the driving support. A rotatable milling wheel is arranged at the bottom of the milling wheel supporting frame, a transmission belt is arranged between the milling wheel and a wheel milling drive, and the wheel milling drive is used for driving the milling wheel to rotate, so that the problems that two different pieces of equipment need to be frequently transferred and the transferring period of the equipment is increased in the existing double-wheel milling and sand digging equipment used on a construction site are solved.

Description

Technical Field

[0001] This utility model relates to the field of anti-seepage wall construction, and in particular to a construction device for trenching CSM anti-seepage walls. Background Technology

[0002] In the construction of CSM cutoff walls, trenching is a crucial step. Different equipment is often required for trenching under different geological conditions, such as sandy soil and hard rock layers. When trenching in sandy soil layers, sand dredging equipment is often used; while when trenching in hard rock layers, specialized rock milling equipment is required. This results in the need to frequently move two different pieces of equipment during construction, which not only increases the equipment relocation cycle but also reduces the excavation efficiency of the cutoff wall and increases construction costs.

[0003] Existing trenching equipment has a single function and cannot flexibly switch operating modes under different geological conditions, making it difficult to meet the diverse needs of actual construction. This trenching device has two functions: sand digging and rock milling. It can effectively solve the above problems, eliminating the need for two devices to carry out construction, improving the excavation efficiency of the anti-seepage wall, and reducing the dispatch cycle of excavation equipment. Utility Model Content

[0004] The main purpose of this utility model is to provide a construction device for trenching CSM anti-seepage walls, which solves the problem that the current twin-wheel milling and sand-dredging equipment used on construction sites requires frequent operation of two different devices, increasing the equipment operation cycle.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a construction device for grooving CSM anti-seepage wall, including a turning part, one end of the turning part is provided with a sand digging component, the other end is provided with a wheel milling component, and the wheel milling component is also provided with a material extraction component.

[0006] The sand dredging assembly includes a sand dredging support, and the inner side of the sand dredging support is provided with multiple first crossbars and second crossbars. The first crossbars are provided with telescopic hydraulic rods, and the second crossbars are provided with swingable buckets.

[0007] The wheel milling assembly includes a milling wheel bracket, multiple transverse guide rails on both sides of the milling wheel bracket, a movable drive bracket on the transverse guide rails, a wheel milling drive on the drive bracket, a milling wheel support below the drive bracket, and a rotatable milling wheel at the bottom of the milling wheel support.

[0008] A transmission belt is provided between the milling wheel and the milling drive, which is used to drive the milling wheel to rotate.

[0009] In the preferred embodiment, a control unit is provided above the flipping part. The control unit includes multiple longitudinal side plates and transverse side plates, with the longitudinal side plates and transverse side plates arranged perpendicularly.

[0010] The longitudinal side plate is provided with multiple longitudinal lifting holes, and a longitudinal hydraulic cylinder is installed inside the longitudinal lifting holes; the transverse side plate is provided with multiple transverse lifting holes, and a transverse hydraulic cylinder is installed inside the transverse lifting holes.

[0011] Below the control unit, there is also a side plate clamping groove, and the flipping part is arranged in the side plate clamping groove;

[0012] The side plate clamping groove has through flip guide holes on both sides, and a flip sleeve is provided on the side facing inward of the flip guide hole. The outer circle of the flip sleeve has a toothed groove, and the flip part is installed between the flip sleeves.

[0013] In a preferred embodiment, the flipping part includes a flipping frame, and a flipping hole is provided at the middle position of the flipping frame. The flipping hole is coaxially sleeved with the flipping guide hole in the control part.

[0014] A flipping motor is also provided on one side of the flipping hole. The output shaft of the flipping motor is provided with a flipping gear. The flipping gear meshes with the tooth groove on the outside of the flipping sleeve. The flipping motor drives the flipping gear to make circumferential motion around the outer circle of the flipping sleeve, thereby driving the flipping frame to flip.

[0015] In the preferred embodiment, the tail of the hydraulic rod is provided with a tailstock, which is rotatably connected to the first crossbar, and the output end of the hydraulic rod is provided with a guide sleeve.

[0016] The bucket has a first hinge seat on its back side, which is rotatably connected to the guide sleeve. The bucket also has a second hinge seat on its back side, which is rotatably connected to the second crossbar. The hydraulic rod is used to control the opening and closing of the bucket.

[0017] In the preferred embodiment, a transverse hydraulic cylinder is provided on one side of the transverse guide rail. The transverse hydraulic cylinder is used to push the drive bracket to adjust the distance between the milling wheels on the transverse guide rail.

[0018] The outer circumference of the milling wheel is symmetrically provided with a third tool holder, and a fourth tool holder is provided between the third tool holders. The third tool holders are arranged in a figure-eight symmetrical manner, and the fourth tool holder is arranged perpendicular to the end face of the milling wheel. The third and fourth tool holders have complementary gaps.

[0019] The outer side of the transmission belt is also equipped with a first tool holder, and the transmission belt is positioned in the middle of the milling wheel.

[0020] In the preferred embodiment, the two end faces of the milling wheel are also provided with tool holder holes, the inside of the tool holder holes is provided with a retractable second tool holder, the inner side of the second tool holder is provided with a tool holder frame, and a pusher cylinder is provided between the tool holder frame and the milling wheel. The pusher cylinder is used to control the extension and retraction of the second tool holder.

[0021] The first, second, third, and fourth tool holders are all used to mount milling cutters.

[0022] In the preferred embodiment, the milling wheel assembly is further provided with a material extraction assembly, which includes a negative pressure pump and a filter head located below the negative pressure pump. The filter head is arranged between the milling wheels.

[0023] The filter head has multiple through filter holes that allow crushed stone to pass through. Above the negative pressure pump is a guide pipe that passes through the tilting guide hole and connects to the external filtration equipment. A rotating joint is provided between the guide pipes to cooperate with the tilting part for rotation.

[0024] This utility model provides a construction device for grooving CSM (Cemented Sandwich Method) anti-seepage walls, which has the following beneficial effects:

[0025] 1. By setting up a flip-up sand-digging component and a wheel milling component, the two functions of sand digging and rock milling can be flexibly switched, eliminating the need for two machines to work alternately and greatly improving construction efficiency.

[0026] 2. The control unit can precisely control the posture of the grooving device in the grooving, maintain verticality, and ensure grooving quality. The material extraction component can promptly extract and filter sand and mud to ensure a clean construction environment. Each component is highly adjustable, adapting to different geological conditions and construction standards, reducing equipment adjustment cycles and lowering construction costs. Attached Figure Description

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0028] Figure 1 This is an isometric view of the sand-digging mode of the grooving device of this utility model;

[0029] Figure 2 This is an isometric view of the dual-wheel milling mode of the grooving device of this utility model;

[0030] Figure 3 This is an exploded view of the entire grooving device of this utility model;

[0031] Figure 4 This is an axonometric view of the tilting frame of this utility model;

[0032] Figure 5 This is an exploded view of the wheel milling assembly of this utility model;

[0033] Figure 6 This is an axonometric view of the flipping part of this utility model;

[0034] Figure 7 This is a cross-sectional schematic diagram of the material extraction component of this utility model;

[0035] Figure 8 This is a cross-sectional schematic diagram of the milling wheel of this utility model;

[0036] Figure 9This is a hoisting diagram of the grooving device of this utility model;

[0037] Figure 10 This is a schematic diagram of the construction of the sand and gravel layer using the grooving device of this utility model;

[0038] Figure 11 This is a schematic diagram of the grooving device of this utility model used in the construction of hard rock layers.

[0039] In the diagram: 1. Slotting device; 2. Lifting unit; 201. Top plate; 202. Lifting hook; 203. Steering cylinder; 204. Cable harness plate; 205. Connecting rod; 3. Control unit; 301. Longitudinal side plate; 302. Transverse side plate; 303. Longitudinal lifting hole; 304. Transverse lifting hole; 305. Side plate clamping groove; 306. Tilting guide hole; 307. Transverse cylinder; 308. Longitudinal cylinder; 309. Tilting sleeve; 4. Tilting unit; 401. Tilting frame; 402. Tilting hole; 403. Tilting gear; 404. Tilting motor; 5. Sand dredging assembly; 501. First crossbar; 502. Hydraulic rod; 503. Tailstock; 504. Second crossbar; 505. Guide 506; Bucket 507; First hinge seat 508; Second hinge seat 509; Milling wheel assembly 6; Milling wheel bracket 601; Transverse guide rail 602; Transverse cylinder 603; Milling wheel drive 604; Drive bracket 605; Milling wheel support 606; Transmission belt 607; First cutter holder 608; Milling wheel 609; Second cutter holder 610; Third cutter holder 611; Fourth cutter holder 612; Cutter holder frame 613; Push cutter cylinder 614; Cutter holder hole 615; Material extraction assembly 7; Negative pressure pump 701; Material guide pipe 702; Rotary joint 703; Discharge pipe 704; Filter head 705; Filter hole 706; Sand layer 8; Hard rock layer 9. Detailed Implementation

[0040] Example 1

[0041] like Figure 1-11 As shown, a construction device for grooving CSM anti-seepage walls is characterized by: including a tilting part 4, one end of which is provided with a sand-dredging component 5, and the other end is provided with a wheel milling component 6, and the wheel milling component 6 is also provided with a material extraction component 7.

[0042] The sand dredging assembly 5 includes a sand dredging support 501. The inner side of the sand dredging support 501 is provided with a plurality of first crossbars 502 and second crossbars 505. The first crossbars 502 are provided with telescopic hydraulic rods 503, and the second crossbars 505 are provided with swingable buckets 507.

[0043] The milling wheel assembly 6 includes a milling wheel bracket 601, with multiple transverse guide rails 602 on both sides of the milling wheel bracket 601. A movable drive bracket 605 is provided on the transverse guide rails 602, a milling wheel drive 604 is provided on the drive bracket 605, a milling wheel support 606 is provided below the drive bracket 605, and a rotatable milling wheel 609 is provided at the bottom of the milling wheel support 606.

[0044] A transmission belt 607 is provided between the milling wheel 609 and the milling drive 604, and the milling drive 604 is used to drive the milling wheel 609 to rotate.

[0045] In the preferred embodiment, a control unit 3 is provided above the flipping part 4. The control unit 3 includes multiple longitudinal side plates 301 and transverse side plates 302, with the longitudinal side plates 301 and transverse side plates 302 arranged perpendicularly.

[0046] The longitudinal side plate 301 is provided with multiple longitudinal lifting holes 303, and the longitudinal lifting holes 303 are provided with longitudinal hydraulic cylinders 307. The transverse side plate 302 is provided with multiple transverse lifting holes 304, and the transverse lifting holes 304 are provided with transverse hydraulic cylinders 307.

[0047] Below the control unit 3, there is also a side plate clamping groove 305, and the flipping part 4 is arranged in the side plate clamping groove 305.

[0048] The side plate clamping groove 305 has through flip guide holes 306 on both sides. A flip sleeve 309 is also provided on the side of the flip guide hole 306 facing inward. The outer circle of the flip sleeve 309 has a toothed groove. The flip part 4 is installed between the flip sleeves 309.

[0049] In a preferred embodiment, the flipping part 4 includes a flipping frame 401, and a flipping hole 402 is provided at the middle position of the flipping frame 401. The flipping hole 402 is coaxially sleeved with the flipping guide hole 306 in the control part 3.

[0050] A flipping motor 404 is also provided on one side of the flipping hole 402. A flipping gear 403 is provided at the output shaft end of the flipping motor 404. The flipping gear 403 meshes with the tooth groove on the outer side of the flipping sleeve 309. The flipping motor 404 drives the flipping gear 403 to make circumferential motion around the outer circle of the flipping sleeve 309, thereby driving the flipping frame 401 to flip.

[0051] In the preferred embodiment, the tail of the hydraulic rod 503 is provided with a tail seat 504, the tail seat 504 is rotatably connected to the first crossbar 502, and the output end of the hydraulic rod 503 is provided with a guide sleeve 506.

[0052] The bucket 507 has a first hinge seat 508 on its back side, which is rotatably connected to the guide sleeve 506. The bucket 507 also has a second hinge seat 509 on its back side, which is rotatably connected to the second crossbar 505. The hydraulic rod 503 is used to control the opening and closing of the bucket 507.

[0053] In the preferred embodiment, a transverse guide rail 602 is provided on one side with a transverse hydraulic cylinder 603, which is used to push the drive bracket 605 to adjust the distance between the milling wheels 609 on the transverse guide rail 602.

[0054] The outer circular surface of the milling wheel 609 is symmetrically provided with a third tool holder 611, and a fourth tool holder 612 is provided between the third tool holders 611. The third tool holders 611 are arranged in a figure-eight symmetrical manner, and the fourth tool holder 612 is arranged perpendicular to the end face of the milling wheel 609. The third tool holders 611 and the fourth tool holder 612 have complementary gaps.

[0055] A first tool holder 608 is also provided on the outer side of the transmission belt 607, and the transmission belt 607 is arranged in the middle of the milling wheel 609.

[0056] In the preferred embodiment, the two end faces of the milling wheel 609 are also provided with tool holder holes 615, the inside of the tool holder holes 615 is provided with a retractable second tool holder 610, the inner side of the second tool holder 610 is provided with a tool holder frame 613, and a pusher cylinder 614 is provided between the tool holder frame 613 and the milling wheel 609. The pusher cylinder 614 is used to control the extension and retraction of the second tool holder 610.

[0057] The first tool holder 608, the second tool holder 610, the third tool holder 611, and the fourth tool holder 612 are all used to mount milling cutters.

[0058] In a preferred embodiment, the milling wheel assembly 6 is further provided with a material extraction assembly 7, which includes a negative pressure pump 701 and a filter head 705 below the negative pressure pump 701. The filter head 705 is arranged between the milling wheels 609.

[0059] The filter head 705 is provided with multiple through filter holes 706, which allow crushed stone to pass through. Above the negative pressure pump 701, there is a guide pipe 702. The guide pipe 702 passes through the flip guide hole 306 and is connected to the external filter equipment. A rotating joint 703 is provided between the guide pipes 702 and the guide pipe 702. The rotating joint 703 is used to cooperate with the flipping part 4 to rotate.

[0060] Example 2

[0061] Further explanation in conjunction with Example 1, such as Figure 1-11 The structure shown illustrates a grooving method for a CSM anti-seepage wall grooving construction device. The method includes: First, using a special hoisting vehicle, the grooving device 1 is hoisted to the top of the marked excavation position via the hoisting unit 2. A hoisting hook 202 is provided above the top plate 201 of the hoisting unit 2, which is connected to the hoisting vehicle via a steel cable. A multi-layer cable harness 204 is provided at the output shaft end of the steering cylinder 203 above the top plate 201. The steel cable passes through the through hole of the cable harness 204, which is provided with a wear-resistant ceramic ring, which can effectively prevent the steel cables from twisting and wearing each other when the steering cylinder 203 rotates.

[0062] After the trenching device 1 is in place, the sand-digging assembly 5 is used to excavate the sand layer 8. The sand-digging support 501 of the sand-digging assembly 5 is provided with a first crossbar 502 and a second crossbar 505 on its inner side. The tail seat 504 of the telescopic hydraulic rod 503 on the first crossbar 502 is rotatably connected to the first crossbar 502. The output end of the hydraulic rod 503 is provided with a guide sleeve 506. The second crossbar 505 is provided with a swingable bucket 507. The first hinge seat 508 on the back side of the bucket 507 is rotatably connected to the guide sleeve 506, and the second hinge seat 509 is rotatably connected to the second crossbar 505.

[0063] The opening and closing of the bucket 507 is controlled by the extension and retraction of the hydraulic rod 503 to excavate sand and soil. After excavating to the designated depth, the grooving device 1 is lifted out by the hoisting unit 2 and moved to the next position to continue excavating until the sand layer 8 is excavated.

[0064] After the sand layer 8 is excavated, the trenching device 1 is moved above the trench where the hard rock layer 9 needs to be excavated.

[0065] At this time, the flipping motor 404 of the flipping part 4 is started. The flipping hole 402 in the middle position of the flipping frame 401 of the flipping part 4 is coaxially sleeved with the flipping sleeve 309 in the flipping guide hole 306 on both sides of the side plate clamping groove 305 of the control part 3. The flipping gear 403 at the output shaft end of the flipping motor 404 meshes with the tooth groove on the outer side of the flipping sleeve 309. The flipping motor 404 drives the flipping gear 403 to make a circular motion around the outer circle of the flipping sleeve 309, thereby flipping the milling assembly 6 to the bottom of the grooving device 1.

[0066] Next, the transverse hydraulic cylinder 603 of the milling wheel assembly 6 is activated to adjust the spacing of the milling wheels 609 to meet the construction standards. The milling wheel bracket 601 of the milling wheel assembly 6 has transverse guide rails 602 on both sides. The drive bracket 605 on the transverse guide rail 602 is movable. The milling wheels 609 are installed at the bottom of the milling wheel support 606 below the drive bracket 605. The transverse hydraulic cylinder 603 can push the drive bracket 605 to move on the transverse guide rail 602.

[0067] Simultaneously, the pusher cylinders 614 inside the cutter holder holes 615 on both ends of the milling wheel 609 are activated, and the second cutter holder 610 is also adjusted to the construction standard. Then, the wheel milling drive 604 is activated, which drives the milling wheel 609 to rotate through the transmission belt 607, and the negative pressure pump 701 of the material extraction assembly 7 is activated to gradually excavate the hard rock layer 9 downward. A filter head 705 is provided below the negative pressure pump 701 of the material extraction assembly 7. The filter head 705 is arranged between the milling wheels 609. The filter holes 706 on the filter head 705 allow the crushed stone to pass through. The guide pipe 702 above the negative pressure pump 701 passes through the tilting guide hole 306 and is connected to the external filtration equipment. The rotating joint 703 between the guide pipes 702 can rotate with the tilting part 4.

[0068] During the excavation of the hard rock layer 9, the attitude of the grooving device 1 in the groove is adjusted by the jacking plate at the top of the longitudinal cylinder 307 and the transverse cylinder 307 of the control unit 3. The control unit 3 is composed of a longitudinal side plate 301 and a transverse side plate 302 arranged vertically. The longitudinal cylinder 307 is installed in the longitudinal lifting hole 303 on the longitudinal side plate 301, and the transverse cylinder 307 is installed in the transverse lifting hole 304 on the transverse side plate 302, so as to maintain the verticality of the grooving device 1.

[0069] During the tunneling process, the horizontal movement cylinder 603 can readjust the spacing of the milling wheels 609 according to the actual situation to handle the hard rock between the milling wheels 609. At the same time, the negative pressure pump 701 continuously pumps the sand and mud to the external filter device and then re-injects it into the trench.

[0070] After the hard rock layer 9 is excavated, the grooving device 1 is taken out using the hoisting unit 2, the second cutter holders 610 on both ends of the milling wheel 609 are retracted, the transverse hydraulic cylinder 603 is started to narrow the gap between the milling wheels 609, and then the tilting motor 404 is started to tilt the sand-digging component 5 back under the grooving device 1 to prepare for the next round of operation.

[0071] If it is necessary to change the grooving direction, the grooving direction of the grooving device 1 can be adjusted by the steering cylinder 203 of the hoisting part 2. Then, repeat steps 1 to 8 above to complete the grooving construction of the anti-seepage wall.

[0072] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A construction device for slotting CSM (Cross-Screen) waterproofing walls, characterized in that: It includes a flipping part (4), one end of which is provided with a sand-digging component (5), and the other end is provided with a wheel milling component (6). The wheel milling component (6) is also provided with a material extraction component (7). The sand dredging assembly (5) includes a sand dredging bracket (501). The inner side of the sand dredging bracket (501) is provided with a plurality of first crossbars (502) and second crossbars (505). The first crossbars (502) are provided with telescopic hydraulic rods (503), and the second crossbars (505) are provided with swingable buckets (507). The wheel milling assembly (6) includes a milling wheel bracket (601), with multiple transverse guide rails (602) on both sides of the milling wheel bracket (601), a movable drive bracket (605) on the transverse guide rails (602), a wheel milling drive (604) on the drive bracket (605), a milling wheel support (606) below the drive bracket (605), and a rotatable milling wheel (609) at the bottom of the milling wheel support (606). A transmission belt (607) is provided between the milling wheel (609) and the milling drive (604), and the milling drive (604) is used to drive the milling wheel (609) to rotate.

2. The construction device for slotting CSM (Crystal Surface Protective) walls according to claim 1, characterized in that: A control unit (3) is provided above the flipping part (4). The control unit (3) includes multiple longitudinal side plates (301) and transverse side plates (302). The longitudinal side plates (301) and transverse side plates (302) are arranged perpendicularly. The longitudinal side plate (301) is provided with multiple longitudinal lifting holes (303), and the longitudinal lifting holes (303) are provided with longitudinal hydraulic cylinders (308). The transverse side plate (302) is provided with multiple transverse lifting holes (304), and the transverse lifting holes (304) are provided with transverse hydraulic cylinders (307). The control unit (3) is also provided with a side plate clamping groove (305) below it, and the flipping part (4) is arranged in the side plate clamping groove (305); The side plate clamping groove (305) has through flip guide holes (306) on both sides. The flip guide hole (306) is also provided with a flip sleeve (309) on the inward side. The outer circle of the flip sleeve (309) is provided with a toothed groove. The flip part (4) is installed between the flip sleeves (309).

3. The construction device for slotting CSM (Crystal Surface Protective) walls according to claim 2, characterized in that: The flipping part (4) includes a flipping frame (401), and a flipping hole (402) is provided in the middle position of the flipping frame (401). The flipping hole (402) is coaxially connected with the flipping guide hole (306) in the control part (3). A flipping motor (404) is also provided on one side of the flipping hole (402). A flipping gear (403) is provided at the output shaft end of the flipping motor (404). The flipping gear (403) meshes with the tooth groove on the outside of the flipping sleeve (309). The flipping motor (404) drives the flipping gear (403) to make a circular motion around the outer circle of the flipping sleeve (309), thereby driving the flipping frame (401) to flip.

4. The construction device for slotting CSM (Crystal Surface Protective) walls according to claim 1, characterized in that: The hydraulic rod (503) is provided with a tail seat (504) at its tail end. The tail seat (504) is rotatably connected to the first cross bar (502). The output end of the hydraulic rod (503) is provided with a guide sleeve (506). The bucket (507) has a first hinge seat (508) on its back side, which is rotatably connected to the guide sleeve (506). The bucket (507) also has a second hinge seat (509) on its back side, which is rotatably connected to the second crossbar (505). The hydraulic rod (503) is used to control the opening and closing of the bucket (507).

5. The construction device for slotting CSM (Crystal Surface Protective) walls according to claim 1, characterized in that: A transverse guide rail (602) is provided on one side with a transverse hydraulic cylinder (603), which is used to push the drive bracket (605) to adjust the distance between the milling wheels (609) on the transverse guide rail (602); The outer circular surface of the milling wheel (609) is symmetrically provided with a third tool holder (611), and a fourth tool holder (612) is provided between the third tool holders (611). The third tool holders (611) are arranged in a figure-eight symmetrical manner, and the fourth tool holder (612) is arranged perpendicular to the end face of the milling wheel (609). The third tool holders (611) and the fourth tool holder (612) have complementary gaps. The outer side of the transmission belt (607) is also provided with a first tool holder (608), and the transmission belt (607) is arranged in the middle of the milling wheel (609).

6. The construction device for slotting CSM (Cross-Screen) seepage-proof walls according to claim 5, characterized in that: The milling wheel (609) is also provided with tool holder holes (615) on both ends. The tool holder holes (615) are provided with a retractable second tool holder (610). The inner side of the second tool holder (610) is provided with a tool holder frame (613). A pusher cylinder (614) is provided between the tool holder frame (613) and the milling wheel (609). The pusher cylinder (614) is used to control the extension and retraction of the second tool holder (610). The first tool holder (608), the second tool holder (610), the third tool holder (611), and the fourth tool holder (612) are all used to mount milling cutters.

7. The construction device for slotting CSM (Crystal Surface Protective) walls according to claim 1, characterized in that: The milling wheel assembly (6) is also provided with a material extraction assembly (7), which includes a negative pressure pump (701), and a filter head (705) is provided below the negative pressure pump (701). The filter head (705) is arranged between the milling wheels (609). The filter head (705) is provided with multiple through filter holes (706), which allow crushed stone to pass through. A guide pipe (702) is provided above the negative pressure pump (701). The guide pipe (702) passes through the flip guide hole (306) and is connected to the external filter equipment. A rotating joint (703) is provided between the guide pipes (702) and the guide pipe (702). The rotating joint (703) is used to cooperate with the flip part (4) to rotate.

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