Cutting device for concrete prefabricated frame manufacturing

Abstract

The invention discloses a concrete prefabricated frame manufacturing cutting device which comprises supporting ground feet and further comprises a cutting assembly, a working box is fixedly connected to the tops of the supporting ground feet, a working plate is fixedly connected to the top of the working box, the cutting assembly comprises a fixed base, and the fixed base is fixedly connected to the left side of the top of the working plate. A driving motor is fixedly connected to the top of the fixed base, a splash-proof shell is fixedly connected to the right side of the driving motor, a cutting cutterhead is arranged in the splash-proof shell, and the driving motor can drive the cutting cutterhead to rotate when working. According to the cutting device, by controlling the angle and the distance between the cooling water flow sprayed by the liquid spraying head and the cutting cutter head, it can be ensured that the water flow more evenly covers the cutting cutter head during cooling, and therefore heat generated in the cutting process is more effectively taken away, and it is helpful for preventing the cutting cutter head from being damaged due to overheating; meanwhile, the temperature of the cutting area is kept stable, and cutting efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of concrete prefabricated frame manufacturing equipment, in particular to a cutting device for manufacturing concrete prefabricated frames. Background Art

[0002] Precast concrete frame usually refers to precast concrete frame structure, which is a frame structure composed of precast concrete components (such as precast columns, precast beams, precast floor slabs, precast stairs, external wall panels, etc.). The components of the precast concrete frame are usually produced in the factory and then transported to the construction site for assembly. These components include precast columns, precast beams, precast floor slabs, etc., which together constitute the main body of the frame structure.

[0003] The Chinese patent application with patent application number CN202420080772.X discloses a cutting device for manufacturing precast concrete frames. Although this application realizes the movement through the cooperation of the sliding frame and the fixed frame, so that the cutting device can slide and cut the frame, the device does not need multiple components to cooperate during the cutting process, which makes the initial manufacturing cost low, making the device convenient for popular use. However, when this application is put into use, it is difficult to adjust the cooling position, so that the temperature is not uniform when cutting, which can easily cause the cutting disc to overheat and cause damage. Improvements are needed to address this problem. Summary of the Invention

[0004] The object of the present invention is to provide a cutting device for manufacturing a prefabricated concrete frame to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a cutting device for manufacturing precast concrete frames, comprising a supporting foot and a cutting assembly, wherein a working box is fixedly connected to the top of the supporting foot, and a working plate is fixedly connected to the top of the working box.

[0006] Wherein, the cutting assembly comprises:

[0007] The fixed base is fixedly connected to the left side of the top of the working plate. The top of the fixed base is fixedly connected to a drive motor. The right side of the drive motor is fixedly connected to a splashproof shell. A cutting disc is arranged in the splashproof shell. The drive motor can drive the cutting disc to rotate when working.

[0008] According to the above technical solution, it also includes a driving assembly, which consists of a fixed support plate, a lifting guide cylinder, an electric telescopic rod, a movable lifting plate, an extrusion frame, an extrusion arm, a movable positioning frame, an adjustment plate and a fixed rotating frame.

[0009] The fixed support plate is fixedly connected to the back of the splashproof shell, the lifting guide cylinder is fixedly connected to the middle of the bottom of the fixed support plate, the electric telescopic rod is fixedly connected to the middle of the top of the fixed support plate, the electric telescopic rod has a telescopic end, the mobile lifting plate is fixedly connected to the telescopic end of the electric telescopic rod, the extrusion frame is fixedly connected to the outside of the mobile lifting plate, the extrusion arm is rotatably connected to the middle part of the extrusion frame, the mobile positioning frame is rotatably connected to the side of the extrusion arm away from the extrusion frame, the adjustment plate is fixedly connected to the side of the mobile positioning frame away from the lifting guide cylinder, and the fixed rotating frame is fixedly connected to the outside of the fixed support plate. The mobile lifting plate and the extrusion frame can squeeze the extrusion arm when lifting, so that the mobile positioning frame and the adjustment plate are synchronously stressed.

[0010] According to the above technical solution, a connecting assembly is also included, which is composed of a connecting drive plate, an adjusting baffle and an adjusting support frame.

[0011] The connecting drive plate is fixedly connected to the front of the adjustment plate, the adjustment baffle is fixedly connected to the front of the connecting drive plate, and the adjustment support frame is fixedly connected to the outside of the splashproof shell. When the adjustment plate moves, it can synchronously drive the connecting drive plate and the adjustment baffle to move.

[0012] According to the above technical solution, a cooling component is also included, which consists of a water tank support frame, a water storage tank, a water pump, a diversion pipe, a spray pipe, a spray head and a telescopic connecting hose.

[0013] The water tank support frame is fixedly connected to the back of the working box, the water storage tank is fixedly connected to the top of the water tank support frame, the water pump is fixedly connected to the top of the water storage tank, the diversion pipe is fixedly connected to the top of the water pump, the spray pipe is fixedly connected to the bottom inner side of the adjusting baffle, the spray head is fixedly connected to the side of the spray pipe away from the adjusting baffle, and the telescopic connecting hose is fixedly connected to the top of the diversion pipe. When the water pump is working, it can pump water in the water storage tank into the diversion pipe.

[0014] According to the above technical solution, the telescopic end of the electric telescopic rod passes through the middle of the fixed support plate and the top of the lifting guide cylinder and extends into the lifting guide cylinder and is fixedly connected to the top of the movable lifting plate. A lifting groove is provided on the outside of the lifting guide cylinder to accommodate the lifting of the extrusion frame. When working, the electric telescopic rod can drive the movable lifting plate and the extrusion frame to rise and fall on the inner wall of the lifting guide cylinder.

[0015] According to the above technical solution, the adjustment plate is rotatably connected to the middle of the fixed rotating frame. When the movable positioning frame pushes the adjustment plate, the adjustment plate can rotate in the middle of the fixed rotating frame.

[0016] According to the above technical solution, the telescopic connecting hose is fixedly connected to the liquid spraying pipe at one end away from the diversion pipe, and the water in the diversion pipe can be introduced into the liquid spraying pipe through the telescopic connecting hose.

[0017] According to the above technical solution, the number of the extrusion frame, extrusion arm, mobile positioning frame, adjustment plate, fixed rotating frame, connecting drive plate, adjustment baffle, adjustment support frame, spray pipe, spray head and telescopic connecting hose are all two, and the two extrusion frames, extrusion arms, mobile positioning frame, adjustment plate, fixed rotating frame, connecting drive plate, adjustment baffle, adjustment support frame, spray pipe, spray head and telescopic connecting hose are symmetrically distributed on the left and right sides of the fixed support plate. When the electric telescopic rod is driven, it can synchronously drive the two adjustment baffles to rotate in the adjustment support frame.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. By controlling the angle and distance between the cooling water flow sprayed from the spray head and the cutting disc, it is possible to ensure that the water flow covers the cutting disc more evenly during cooling, thereby more effectively removing the heat generated during the cutting process. This helps prevent the cutting disc from being damaged due to overheating, while maintaining a stable temperature in the cutting area and improving cutting efficiency.

[0020] 2. By adjusting the angle and distance of the cooling water flow, the temperature distribution of the cutting disc can be better controlled, reducing the thermal stress caused by local overheating. This helps prevent the cutting disc from cracking or deforming due to excessive thermal stress, thereby extending its service life;

[0021] 3. The smoke and dust generated during the cutting process have adverse effects on the working environment and workers' health. By adjusting the angle and distance of the cooling water flow, these harmful substances can be washed away more effectively. At the same time, a higher cooling water flow angle can cover more smoke and dust, improving the working environment.

[0022] 4. When adjusting the angle of the adjustment baffle, the adjustment baffle can be set on the outside of the cutting disc, which can prevent sparks from the side from flying around during cutting and avoid causing fire. At the same time, the water flow sprayed from the spray head contacts the outside of the cutting disc. The water flow can wash away the chips, dust and other debris generated during the cutting process, keep the cutting area clean, and reduce excessive contact between the cutting disc and the workpiece due to the presence of debris, thereby ensuring the service life of the cutting disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the fixed support plate of the present invention;

[0026] Figure 3 yes Figure 2 A in the middle is an enlarged schematic diagram;

[0027] Figure 4 This is a schematic diagram of the explosion of the lifting guide cylinder of the present invention;

[0028] Figure 5 yes Figure 4 The enlarged schematic diagram of point B in the middle;

[0029] Figure 6 It is a schematic diagram of the adjustment baffle of the present invention;

[0030] Figure 7 It is a schematic diagram of the liquid ejecting head of the present invention.

[0031] In the figure: 1. Supporting feet; 2. Working box; 3. Working plate; 4. Cutting assembly; 401. Fixed base; 402. Driving motor; 403. Splashproof shell; 404. Cutting disc; 5. Driving assembly; 501. Fixed supporting plate; 502. Lifting guide cylinder; 503. Electric telescopic rod; 504. Mobile lifting plate; 505. Extrusion frame; 506. Extrusion arm; 507. Mobile positioning frame; 508. Adjustment plate; 509. Fixed rotating frame; 6. Connecting assembly; 602. Connecting driving plate; 603. Adjustment baffle; 604. Adjustment support frame; 7. Cooling assembly; 701. Water tank support frame; 702. Water storage tank; 703. Water pump; 704. Diverter pipe; 705. Spray pipe; 706. Spray head; 707. Telescopic connecting hose DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but are not to be construed as limiting the present invention.

[0034] For example 1, please refer to Figure 1-6 The present invention provides a technical solution: a cutting device for manufacturing a prefabricated concrete frame, comprising a supporting foot 1 and a cutting assembly 4, wherein a working box 2 is fixedly connected to the top of the supporting foot 1, and a working plate 3 is fixedly connected to the top of the working box 2.

[0035] Wherein, the cutting component 4 includes:

[0036] The fixed base 401 is fixedly connected to the left side of the top of the working plate 3. The top of the fixed base 401 is fixedly connected to a drive motor 402. The right side of the drive motor 402 is fixedly connected to a splash-proof shell 403. A cutting disc 404 is arranged in the splash-proof shell 403. The drive motor 402 can drive the cutting disc 404 to rotate when working.

[0037] It also includes a driving assembly 5, which consists of a fixed support plate 501, a lifting guide cylinder 502, an electric telescopic rod 503, a movable lifting plate 504, an extrusion frame 505, an extrusion arm 506, a movable positioning frame 507, an adjustment plate 508 and a fixed rotating frame 509.

[0038] The fixed support plate 501 is fixedly connected to the back of the splashproof shell 403, the lifting guide cylinder 502 is fixedly connected to the middle of the bottom of the fixed support plate 501, the electric telescopic rod 503 is fixedly connected to the middle of the top of the fixed support plate 501, the electric telescopic rod 503 has a telescopic end, the mobile lifting plate 504 is fixedly connected to the telescopic end of the electric telescopic rod 503, the extrusion frame 505 is fixedly connected to the outside of the mobile lifting plate 504, the extrusion arm 506 is rotatably connected to the middle part of the extrusion frame 505, the mobile positioning frame 507 is rotatably connected to the side of the extrusion arm 506 away from the extrusion frame 505, the adjustment plate 508 is fixedly connected to the side of the mobile positioning frame 507 away from the lifting guide cylinder 502, and the fixed rotating frame 509 is fixedly connected to the outside of the fixed support plate 501. The mobile lifting plate 504 and the extrusion frame 505 can squeeze the extrusion arm 506 when lifting, so that the mobile positioning frame 507 and the adjustment plate 508 are synchronously stressed.

[0039] It also includes a connecting component 6, which consists of a connecting driving plate 602, an adjusting baffle 603 and an adjusting support frame 604.

[0040] The connecting drive plate 602 is fixedly connected to the front of the adjustment plate 508, the adjustment baffle 603 is fixedly connected to the front of the connecting drive plate 602, and the adjustment support frame 604 is fixedly connected to the outside of the splashproof shell 403. When the adjustment plate 508 moves, it can synchronously drive the connecting drive plate 602 and the adjustment baffle 603 to move.

[0041] The telescopic end of the electric telescopic rod 503 passes through the middle of the fixed support plate 501 and the top of the lifting guide cylinder 502 and extends into the lifting guide cylinder 502 and is fixedly connected to the top of the movable lifting plate 504. A lifting groove is provided on the outside of the lifting guide cylinder 502 to accommodate the lifting of the extrusion frame 505. When working, the electric telescopic rod 503 can drive the movable lifting plate 504 and the extrusion frame 505 to rise and fall on the inner wall of the lifting guide cylinder 502.

[0042] The adjustment plate 508 is rotatably connected to the middle of the fixed rotating frame 509 . When the movable positioning frame 507 pushes the adjustment plate 508 , the adjustment plate 508 can rotate in the middle of the fixed rotating frame 509 .

[0043] When the cooling angle needs to be adjusted, the electric telescopic rod 503 is controlled to work, so that the electric telescopic rod 503 drives the mobile lifting plate 504 to move up and down in the lifting guide cylinder 502 during operation. At the same time, the mobile lifting plate 504 causes the extrusion frame 505 to move synchronously when it is lifted, so that the extrusion frame 505 squeezes the extrusion arm 506. When the extrusion arm 506 is squeezed, the extrusion arm 506 pushes the mobile positioning frame 507. At this time, the mobile positioning frame 507 is forced to push the adjustment plate 508, so that the adjustment plate 508 rotates in the middle of the fixed rotating frame 509. At the same time, when the adjustment plate 508 rotates, it can drive the adjustment baffle 603 by connecting the drive plate 602, so that the adjustment baffle 603 rotates synchronously in the adjustment support frame 604, so that the rotation angle of the adjustment support frame 604 can be changed, and then the angle during cooling can be changed.

[0044] For example 2, please refer to Figure 1-7 Based on the first embodiment, the present invention provides a technical solution: it also includes a cooling component 7, which is composed of a water tank support frame 701, a water storage tank 702, a water pump 703, a diversion pipe 704, a liquid spray pipe 705, a liquid spray head 706 and a telescopic connecting hose 707.

[0045] The water tank support frame 701 is fixedly connected to the back of the working box 2, the water storage tank 702 is fixedly connected to the top of the water tank support frame 701, the water pump 703 is fixedly connected to the top of the water storage tank 702, the diversion pipe 704 is fixedly connected to the top of the water pump 703, the spray pipe 705 is fixedly connected to the bottom inner side of the adjusting baffle 603, the spray head 706 is fixedly connected to the side of the spray pipe 705 away from the adjusting baffle 603, the telescopic connecting hose 707 is fixedly connected to the top of the diversion pipe 704, and the water pump 703 can pump the water in the water storage tank 702 into the diversion pipe 704 when working.

[0046] The telescopic connecting hose 707 is fixedly connected to the liquid spraying pipe 705 at one end away from the diversion pipe 704 , so that the water in the diversion pipe 704 can be introduced into the liquid spraying pipe 705 through the telescopic connecting hose 707 .

[0047] There are two of each of the extrusion frame 505, the extrusion arm 506, the mobile positioning frame 507, the adjustment plate 508, the fixed rotating frame 509, the connecting drive plate 602, the adjustment baffle 603, the adjustment support frame 604, the spray pipe 705, the spray head 706 and the telescopic connecting hose 707. The two extrusion frames 505, the extrusion arm 506, the mobile positioning frame 507, the adjustment plate 508, the fixed rotating frame 509, the connecting drive plate 602, the adjustment baffle 603, the adjustment support frame 604, the spray pipe 705, the spray head 706 and the telescopic connecting hose 707 are symmetrically distributed on the left and right sides of the fixed support plate 501. When driven, the electric telescopic rod 503 can synchronously drive the two adjustment baffles 603 to rotate in the adjustment support frame 604.

[0048] When cooling is required, the water pump 703 is controlled to pump out the cooling water in the water tank 702, and introduce it into the spray pipe 705 through the diversion pipe 704 and the telescopic connecting hose 707, and finally sprayed out through the spray head 706, so that the spray head 706 can change the spray angle synchronously with the change of the angle of the adjustment baffle 603.

[0049] By controlling the angle and distance between the cooling water flow sprayed by the liquid spray head 706 and the cutting disc 404, it is possible to ensure that the water flow covers the cutting disc more evenly during cooling, thereby more effectively removing the heat generated during the cutting process. This helps prevent the cutting disc 404 from being damaged due to overheating, while maintaining a stable temperature in the cutting area and improving cutting efficiency.

[0050] By adjusting the angle and distance of the cooling water flow, the temperature distribution of the cutting disc 404 can be better controlled, and the thermal stress caused by local overheating can be reduced. This helps prevent the cutting disc 404 from cracking or deforming due to excessive thermal stress, thereby extending its service life.

[0051] The smoke and dust generated during the cutting process have adverse effects on the working environment and workers' health. By adjusting the angle and distance of the cooling water flow, these harmful substances can be washed away more effectively. At the same time, a higher cooling water flow angle can cover more smoke and dust, improving the working environment.

[0052] When adjusting the angle of the adjustment baffle 603, the adjustment baffle 603 can be set on the outside of the cutting disc 404, which can prevent sparks from the side from flying around during cutting and avoid causing fire. At the same time, the water flow sprayed by the spray head 706 contacts the outside of the cutting disc 404. The water flow can wash away the chips, dust and other debris generated during the cutting process, keep the cutting area clean, and reduce excessive contact between the cutting disc 404 and the workpiece due to the presence of debris, thereby ensuring the service life of the cutting disc 404.

[0053] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0054] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A cutting device for manufacturing a precast concrete frame, comprising a support foot (1), characterized in that: It also includes a cutting assembly (4), wherein the top of the supporting foot (1) is fixedly connected to a working box (2), and the top of the working box (2) is fixedly connected to a working plate (3); Wherein, the cutting assembly (4) comprises: A fixed base (401) is fixedly connected to the left side of the top of the working plate (3); a driving motor (402) is fixedly connected to the top of the fixed base (401); a splash-proof shell (403) is fixedly connected to the right side of the driving motor (402); a cutting disc (404) is arranged in the splash-proof shell (403); and the driving motor (402) can drive the cutting disc (404) to rotate when working.

2. A cutting device for manufacturing a prefabricated concrete frame according to claim 1, characterized in that: The device further comprises a driving assembly (5), wherein the driving assembly (5) is composed of a fixed support plate (501), a lifting guide cylinder (502), an electric telescopic rod (503), a movable lifting plate (504), an extrusion frame (505), an extrusion arm (506), a movable positioning frame (507), an adjustment plate (508), and a fixed rotating frame (509); The fixed support plate (501) is fixedly connected to the back of the splashproof shell (403), the lifting guide cylinder (502) is fixedly connected to the middle of the bottom of the fixed support plate (501), the electric telescopic rod (503) is fixedly connected to the middle of the top of the fixed support plate (501), the electric telescopic rod (503) has a telescopic end, the movable lifting plate (504) is fixedly connected to the telescopic end of the electric telescopic rod (503), the extrusion frame (505) is fixedly connected to the outside of the movable lifting plate (504), and the extrusion arm (506) is rotatably connected to the extrusion frame. In the middle of the pressing frame (505), the movable positioning frame (507) is rotatably connected to the side of the squeezing arm (506) away from the squeezing frame (505), the adjusting plate (508) is fixedly connected to the side of the movable positioning frame (507) away from the lifting guide cylinder (502), and the fixed rotating frame (509) is fixedly connected to the outside of the fixed support plate (501). The movable lifting plate (504) and the squeezing frame (505) can squeeze the squeezing arm (506) when they are lifted or lowered, so that the movable positioning frame (507) and the adjusting plate (508) are subjected to force synchronously.

3. The cutting device for manufacturing a prefabricated concrete frame according to claim 2, characterized in that: It also includes a connecting assembly (6), which is composed of a connecting drive plate (602), an adjusting baffle (603) and an adjusting support frame (604); The connecting drive plate (602) is fixedly connected to the front of the adjustment plate (508), the adjustment baffle (603) is fixedly connected to the front of the connecting drive plate (602), and the adjustment support frame (604) is fixedly connected to the outside of the splash-proof shell (403). When the adjustment plate (508) moves, it can synchronously drive the connecting drive plate (602) and the adjustment baffle (603) to move.

4. The cutting device for manufacturing a prefabricated concrete frame according to claim 3, characterized in that: It also includes a cooling component (7), which is composed of a water tank support frame (701), a water storage tank (702), a water pump (703), a diversion pipe (704), a liquid spray pipe (705), a liquid spray head (706), and a telescopic connecting hose (707); The water tank support frame (701) is fixedly connected to the back of the working box (2); the water storage tank (702) is fixedly connected to the top of the water tank support frame (701); the water pump (703) is fixedly connected to the top of the water storage tank (702); the diversion pipe (704) is fixedly connected to the top of the water pump (703); the liquid spray pipe (705) is fixedly connected to the bottom inside the adjustment baffle (603); the liquid spray head (706) is fixedly connected to the side of the liquid spray pipe (705) away from the adjustment baffle (603); the telescopic connecting hose (707) is fixedly connected to the top of the diversion pipe (704); and when the water pump (703) is in operation, the water in the water storage tank (702) can be pumped into the diversion pipe (704).

5. The cutting device for manufacturing a prefabricated concrete frame according to claim 4, characterized in that: The telescopic end of the electric telescopic rod (503) passes through the middle of the fixed support plate (501) and the top of the lifting guide cylinder (502) and extends into the lifting guide cylinder (502) to be fixedly connected to the top of the movable lifting plate (504). The outer side of the lifting guide cylinder (502) is provided with a lifting groove for accommodating the lifting of the extrusion frame (505). When the electric telescopic rod (503) is in operation, it can drive the movable lifting plate (504) and the extrusion frame (505) to move up and down on the inner wall of the lifting guide cylinder (502).

6. The cutting device for manufacturing a prefabricated concrete frame according to claim 5, characterized in that: The adjustment plate (508) is rotatably connected to the middle of the fixed rotating frame (509), and when the movable positioning frame (507) pushes the adjustment plate (508), the adjustment plate (508) can rotate in the middle of the fixed rotating frame (509).

7. The cutting device for manufacturing a prefabricated concrete frame according to claim 6, characterized in that: The telescopic connecting hose (707) is fixedly connected to the liquid spraying pipe (705) at one end away from the diversion pipe (704), and water in the diversion pipe (704) can be introduced into the liquid spraying pipe (705) through the telescopic connecting hose (707).

8. The cutting device for manufacturing a precast concrete frame according to claim 7, characterized in that: The extrusion frame (505), the extrusion arm (506), the movable positioning frame (507), the adjustment plate (508), the fixed rotating frame (509), the connecting drive plate (602), the adjustment baffle (603), the adjustment support frame (604), the liquid spraying pipe (705), the liquid spraying head (706) and the telescopic connecting hose (707) are each provided in two pieces. The two extrusion frames (505), the extrusion arm (506), the movable positioning frame (507), the adjustment plate (508), the fixed rotating frame (509), the connecting drive plate (602), the adjustment baffle (603), the adjustment support frame (604), the liquid spraying pipe (705), the liquid spraying head (706) and the telescopic connecting hose (707) are symmetrically distributed on the left and right sides of the fixed support plate (501). When the electric telescopic rod (503) is driven, it can synchronously drive the two adjustment baffles (603) to rotate in the adjustment support frame (604).

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