Greening vegetation transplanting device for ecological restoration of mining area

Abstract

The invention relates to the technical field of mining area ecological restoration, and discloses a greening vegetation transplanting device for mining area ecological restoration, the greening vegetation transplanting device comprises a main body table, one side of the upper part of the main body table is provided with a box body, the box body is internally provided with a storage fixing mechanism, and the storage fixing mechanism is used for storing and fixing vegetation needing to be transplanted; a spraying and collecting mechanism is installed at the bottom of the box body and used for spraying stored vegetation and collecting waste water, a pushing mechanism is installed in the main body table and used for pushing transplanted vegetation, and transplanting mechanisms are installed at the two ends of the pushing mechanism and used for transplanting the vegetation needing to be transplanted. The distance between the clamps is flexibly adjusted according to the types and sizes of vegetation, initial fixing is achieved by inserting spikes into soil, meanwhile, the requirement for transplanting diversified vegetation in a mining area is met through the multiple layers of storage tables and adjustable fixing clamps of the storage fixing mechanism, and the adaptability of the device is enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of mining area ecological restoration, in particular to a greening vegetation transplanting device used for mining area ecological restoration. Background Art

[0002] The greening vegetation transplanting device is a mechanical equipment that can realize a series of functions such as greening vegetation digging, transportation, storage and transplanting.

[0003] However, the current existing vegetation transplantation technology has many shortcomings in responding to the needs of ecological restoration in mining areas. The traditional manual transplantation method mainly relies on manual use of simple tools, such as shovels and hoes. This method is extremely inefficient in the complex environment of mining areas, has great labor intensity, and is difficult to ensure the integrity of the vegetation root system. When faced with the hard soil and complex geological conditions in mining areas, manual tools are often difficult to dig deeply, which easily causes root breakage, thereby greatly reducing the survival rate of vegetation after transplantation. Some existing simple transplanting equipment has relatively single functions, most of which only have basic digging or transportation functions, and lack systematic and comprehensive design. For example, small diggers can only complete simple digging operations and cannot properly protect and transport the excavated vegetation; some simple transportation tools cannot provide a suitable environment for vegetation during transportation, which easily causes damage to vegetation. In addition, these devices lack flexible adaptability and pertinence when facing vegetation of different types and sizes in mining areas, and cannot meet the actual needs of large-scale and diversified vegetation transplantation, which seriously restricts the efficient development of vegetation restoration work in mining areas.

[0004] In view of this, the purpose of the present invention is to provide a green vegetation transplanting device for ecological restoration of mining areas to solve the deficiencies in the prior art. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a greening vegetation transplanting device for ecological restoration in mining areas, which solves the problem that the actual needs of large-scale and diversified vegetation transplanting cannot be met.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a greening vegetation transplanting device for ecological restoration of mining areas, comprising a main platform, a box body is installed on one side of the upper part of the main platform, a storage and fixing mechanism is installed inside the box body, which is used to store and fix vegetation that needs to be transplanted, a spraying and collecting mechanism is installed at the bottom of the box body, which is used to spray the stored vegetation and collect and treat wastewater, a pushing mechanism is installed inside the main platform, which is used to push the transplanted vegetation, transplanting mechanisms are installed at both ends of the pushing mechanism, which are used to transplant the vegetation in need, a handle is fixedly installed at the rear end of the main platform, and a plurality of universal wheels are installed at the bottom of the main platform.

[0007] Preferably, the storage fixing mechanism comprises a plurality of storage tables fixedly mounted inside the box body, and both sides of the upper portions of the plurality of storage tables are mounted with fixing blocks, and one side of the fixing blocks is provided with a first slide groove.

[0008] Preferably, the plurality of storage tables are installed in an upper and lower position relationship.

[0009] Preferably, two first fixing clips are installed on the bottom storage table in the box body, the two first fixing clips are respectively slidably connected to the first sliding groove, a telescopic rod is connected between the two first fixing clips, and a first clamping hole is provided on one side of the two first fixing clips.

[0010] Preferably, a plurality of second fixing clips are installed on the middle storage table in the box, wherein a telescopic rod is connected between two corresponding second fixing clips, a second clamping hole is provided on one side of each of the plurality of second fixing clips, and the plurality of second fixing clips are respectively slidably connected to the first sliding groove.

[0011] Preferably, a plurality of third fixing clips are installed on the upper storage table in the box body, wherein a telescopic rod is also connected between two corresponding third fixing clips, a third clamping hole is provided on one side of the plurality of third fixing clips, the plurality of third fixing clips are respectively slidably connected to the first sliding groove, and a drainage outlet is provided on one side of the plurality of storage tables.

[0012] Preferably, the spraying and collecting mechanism includes a water tank fixedly mounted on the bottom of the box body, a filter screen is installed inside the water tank, a first electric slide rail is installed on both sides of the upper part of the filter screen, a first push plate is connected between the two moving seats of the first electric slide rails, and a collection box is installed on both sides of the water tank.

[0013] Preferably, a water inlet pipe is installed on the upper part of the water tank, one end of the water inlet pipe is connected to the interior of the water tank, a valve is installed around the outside of the water inlet pipe, a plurality of first water diversion pipes are arranged on one side of the water inlet pipe, the plurality of first water diversion pipes are respectively installed corresponding to a plurality of storage tables, a sprinkler is installed on one end of the plurality of first water diversion pipes, a plurality of drainage outlets arranged on one side of the storage tables are respectively installed corresponding to the plurality of second water diversion pipes, two water outlet pipes are installed on the upper part of the water tank, the plurality of second water diversion pipes are respectively installed corresponding to the water outlet pipes.

[0014] Preferably, the pushing mechanism includes second electric slide rails installed on both sides of the bottom of the main platform, hydraulic rods are fixedly installed on the upper parts of the movable seats on the two second electric slide rails, and placement blocks are fixedly installed on the output ends of the two hydraulic rods. A plurality of slides are arranged on the placement blocks, and long strips are installed on both sides of the upper part of the placement blocks, and a second slide groove is arranged on one side of the two long strips, and a second push plate is slidably installed between the two second slide grooves.

[0015] Preferably, the transplantation mechanism includes rotating shafts rotatably installed on both sides of the placement block, connecting frames are installed at the bottom of the two rotating shafts, one end of the two connecting frames is respectively connected to the first clamp and the second clamp, a rotating rod is rotatably installed between the first clamp and the second clamp, and the bottom of the first clamp and the second clamp are respectively provided with multiple spikes.

[0016] The present invention provides a greening vegetation transplanting device for ecological restoration in mining areas.

[0017] Beneficial effects:

[0018] 1. The present invention flexibly adjusts the spacing between the clamps according to the type and size of the vegetation, inserts the spikes into the soil to achieve preliminary fixation, and then completes the excavation and grabbing through the hydraulic rod, thereby improving the transplanting efficiency of different types of vegetation. At the same time, through the multi-layer storage platform and adjustable fixing clamps of the storage fixing mechanism, it can adapt to the storage of various vegetation, meet the transplanting needs of diversified vegetation in mining areas, and enhance the adaptability of the device.

[0019] 2. The present invention realizes position movement through the electric slide rail in the pushing mechanism, and then adjusts the height through the hydraulic rod. Subsequently, the vegetation is pushed stably through the cooperation of the slide and the push plate, thereby ensuring the stability of the vegetation during transportation. It can also accurately deliver the vegetation to the corresponding storage platform according to the type and size of the vegetation, thereby improving the accuracy and reliability of vegetation transportation.

[0020] 3. The present invention realizes the recycling of water by returning the sprayed water to the water tank through the drain port and the water diversion pipe, which not only saves water resources but also keeps the humidity in the tank stable. At the same time, impurities are cleaned by the filter screen and the first push plate under the action of the first electric slide rail, thereby ensuring the clean water quality, creating a good storage environment for vegetation, and promoting the ecological restoration of the mining area. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A perspective view of the present invention;

[0022] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the storage and fixing mechanism of the present invention;

[0024] Figure 4 It is a schematic diagram of the spraying structure of the present invention;

[0025] Figure 5 It is a schematic diagram of the collection structure of the present invention;

[0026] Figure 6 It is a schematic diagram of the pushing mechanism of the present invention;

[0027] Figure 7 It is a schematic diagram of the transplantation mechanism of the present invention;

[0028] Figure 8 It is a schematic diagram of a component of the pushing mechanism of the present invention.

[0029] Among them, 1. main platform; 2. box; 3. storage fixing mechanism; 301. storage platform; 302. fixing block; 303. first slide slot; 304. first fixing clamp; 305. telescopic rod; 306. first clamp hole; 307. drain outlet; 308. second fixing clamp; 309. second clamp hole; 310. third fixing clamp; 311. third clamp hole; 4. spraying and collecting mechanism; 401. water tank; 402. filter; 403. first electric slide rail; 404. first push plate; 405. collection box; 406. inlet Water pipe; 407, valve; 408, first water pipe; 409, sprinkler; 410, second water pipe; 411, water outlet pipe; 5, pushing mechanism; 501, second electric slide rail; 502, hydraulic rod; 503, placement block; 504, slideway; 505, strip; 506, second slide groove; 507, second push plate; 6, transplanting mechanism; 601, rotating shaft; 602, connecting frame; 603, first clamp; 604, second clamp; 605, rotating rod; 606, spike; 7, handle; 8, universal wheel. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Please refer to the attached Figure 1 -Attached Figure 8The embodiment of the present invention provides a greening vegetation transplanting device for ecological restoration of mining areas, including a main platform 1, a box body 2 is installed on one side of the upper part of the main platform 1, a storage and fixing mechanism 3 is installed inside the box body 2, which is used to store and fix vegetation to be transplanted, a spraying and collecting mechanism 4 is installed at the bottom of the box body 2, which is used to spray the stored vegetation and collect and process wastewater, a pushing mechanism 5 is installed inside the main platform 1, which is used to push the transplanted vegetation, and transplanting mechanisms 6 are installed at both ends of the pushing mechanism 5, which are used to transplant the required vegetation, a handle 7 is fixedly installed at the rear end of the main platform 1, and a plurality of universal wheels 8 are installed at the bottom of the main platform 1.

[0032] The storage fixing mechanism 3 includes a plurality of storage tables 301 fixedly installed inside the box body 2, and a fixing block 302 is installed on both sides of the upper part of the plurality of storage tables 301, and a first slide groove 303 is provided on one side of the fixing block 302;

[0033] A plurality of storage tables 301 are installed in an upper and lower position relationship;

[0034] Specifically, the function of the plurality of storage platforms 301 is to classify and store vegetation according to the size and type of vegetation, thereby achieving a diversified storage effect of vegetation.

[0035] Two first fixing clips 304 are installed on the bottom storage platform 301 in the box body 2. The two first fixing clips 304 are slidably connected to the first sliding groove 303 respectively. A telescopic rod 305 is connected between the two first fixing clips 304. One side of the two first fixing clips 304 is provided with a first clamping hole 306.

[0036] Specifically, the first fixing clamps 304 can slide left and right under the sliding action of the first sliding grooves 303 and then through the telescopic rod 305 connected between the two first fixing clamps 304 to adjust the spacing of the first clamping holes 306, so as to accurately fix vegetation of different sizes.

[0037] A plurality of second fixing clips 308 are installed on the middle storage platform 301 in the box body 2, wherein a telescopic rod 305 is connected between two corresponding second fixing clips 308, a second clamping hole 309 is provided on one side of the plurality of second fixing clips 308, and the plurality of second fixing clips 308 are respectively slidably connected with the first sliding groove 303;

[0038] Specifically, the storage platform 301 in the middle is mainly used to store vegetation with a slightly larger volume. The telescopic rod 305 connected between the second fixing clamps 308 can slide left and right to adjust the spacing of the second clamping holes 309, so as to accurately fix the vegetation with a slightly larger volume.

[0039] A plurality of third fixing clips 310 are installed on the upper storage platform 301 in the box body 2, wherein a telescopic rod 305 is also connected between two corresponding third fixing clips 310, a third clamping hole 311 is provided on one side of the plurality of third fixing clips 310, the plurality of third fixing clips 310 are respectively slidably connected to the first slide groove 303, and a drainage port 307 is provided on one side of the plurality of storage platforms 301;

[0040] Specifically, the storage table 301 at the bottom is mainly used to store larger plants. The telescopic rod 305 connected between the third fixing clamps 310 can also slide left and right to adjust the spacing of the third clamping holes 311, so as to accurately fix the larger plants.

[0041] The spraying and collecting mechanism 4 includes a water tank 401 fixedly mounted at the bottom of the box body 2, a filter screen 402 is mounted inside the water tank 401, first electric slide rails 403 are mounted on both sides of the upper part of the filter screen 402, a first push plate 404 is connected between the moving seats of the two first electric slide rails 403, and a collecting box 405 is mounted on both sides of the water tank 401;

[0042] Specifically, the filter 402 is used to filter out soil debris contained in the discharged water. The first push plate 404, driven by the first electric slide rail 403, cleans the soil debris remaining on the filter 402 to prevent the water from being polluted and affecting the spraying and moisturizing effect on the vegetation.

[0043] A water inlet pipe 406 is installed on the upper part of the water tank 401, one end of the water inlet pipe 406 is connected to the inside of the water tank 401, a valve 407 is installed around the outside of the water inlet pipe 406, a plurality of first water diversion pipes 408 are arranged on one side of the water inlet pipe 406, the plurality of first water diversion pipes 408 are respectively installed corresponding to the plurality of storage platforms 301, a sprayer 409 is installed on one end of the plurality of first water diversion pipes 408, a drainage port 307 arranged on one side of the plurality of storage platforms 301 is respectively installed corresponding to the plurality of second water diversion pipes 410, two water outlet pipes 411 are installed on the upper part of the water tank 401, the plurality of second water diversion pipes 410 are respectively installed corresponding to the water outlet pipes 411;

[0044] Specifically, the function of the water inlet pipe 406 is to transport water to each sprinkler 409, so as to spray and moisturize the vegetation. The function of the drain outlet 307 is to discharge the excess water sprayed on the bottom of the vegetation to prevent the growth of the vegetation from being affected by excessive water. The function of the second water pipe 410 connected to the water outlet pipe 411 is to discharge the waste water into the water tank 401 at the bottom, and then filter the waste water.

[0045] The pushing mechanism 5 includes second electric slide rails 501 installed on both sides of the bottom of the main platform 1, and hydraulic rods 502 are fixedly installed on the upper part of the moving seats on the two second electric slide rails 501. The output ends of the two hydraulic rods 502 are fixedly installed with placement blocks 503, and a plurality of slideways 504 are arranged on the placement blocks 503. Long strips 505 are installed on both sides of the upper part of the placement blocks 503, and one side of the two long strips 505 is provided with a second slide groove 506, and a second push plate 507 is slidably installed between the two second slide grooves 506;

[0046] Specifically, the hydraulic rod 502 is responsible for moving the transplanting mechanism 6 to the vicinity of the vegetation to be transplanted and moving the vegetation to the corresponding storage platform 301. The second push plate 507 pushes the vegetation to the corresponding storage position under the sliding action of the second slide groove 506.

[0047] The transplant mechanism 6 includes rotating shafts 601 rotatably mounted on both sides of the placement block 503, and connecting frames 602 are installed at the bottom of the two rotating shafts 601. One end of the two connecting frames 602 is respectively connected to a first clamp 603 and a second clamp 604, and a rotating rod 605 is rotatably mounted between the first clamp 603 and the second clamp 604. The bottom of the first clamp 603 and the bottom of the second clamp 604 are respectively provided with a plurality of spikes 606;

[0048] Specifically, the function of the rotating shaft 601 is to rotate the transplanting mechanism 6 to above the placement block 503, the function of the connecting frame 602 is to drive the first clamp 603 and the second clamp 604 to clamp and fix the vegetation under the action of the rotating rod 605 and take it out of the ground, and the function of the spike 606 is to be responsible for pushing the transplanting device deep into the ground to facilitate the removal of the vegetation that needs to be transplanted.

[0049] Working principle: When the present invention is used, it specifically includes the following steps:

[0050] First, the operator holds the handle 7 and then pushes the device to the mining area where vegetation transplanting is required under the action of the universal wheel 8.

[0051] Then enter the excavation and grasping stage. The operator selects a suitable transplanting mechanism 6 according to the type and size of the vegetation. For herbaceous plants or small shrubs, the spacing between the first clamp 603 and the second clamp 604 can be reduced. For larger trees, a larger spacing can be adjusted. Then, the transplanting mechanism 6 is started, and the first clamp 603 and the second clamp 604 are moved to the position above the vegetation through the hydraulic action of the hydraulic rod 502. Then, the spikes 606 at the bottom of the first clamp 603 and the second clamp 604 are inserted into the soil around the vegetation. Then, the first clamp 603 and the second clamp 604 are clamped by the clamping action of the first clamp 603 and the second clamp 604 to achieve preliminary fixation of the vegetation. Subsequently, the vegetation is lifted off the ground by the hydraulic rod 502 to complete the excavation and grasping process.

[0052] Next comes the transportation and storage stage. After grabbing the vegetation, the connecting frame 602 is driven to rotate through the rotating shaft 601 to move the vegetation to the top of the placement block 503 of the pushing mechanism 5. Then the placement block 503 catches the vegetation and drops it into the slide 504. Next, the pushing device is driven to move to the appropriate position through the second electric slide rail 501, and then the second push plate 507 slides in the second slide groove 506 of the long strip 505. Then, according to the type and size of the vegetation, the vegetation is pushed to the corresponding fixing device. For example, herbaceous plants correspond to the upper storage platform 301, small shrubs correspond to the middle storage platform 301, and large trees correspond to the bottom storage platform 301. After pushing is completed, the first fixing clamp 304 on the bottom storage platform 301 can slide in the first slide groove 303, and then the telescopic effect of the telescopic rod 305 can be used to adjust the spacing of the first clamping hole 306, ensuring that the first clamping hole 306 can fix the roots of the vegetation. The second fixing clamp 308 of the middle storage platform 301 and the third fixing clamp 310 of the upper storage platform 301 are similar. The spacing is adjusted through the telescopic rod 305, and the second clamping hole 309 and the third clamping hole 311 are used to fix the vegetation. After the vegetation is fixed, the second electric slide rail 501 continues to move, and moves the placement block 503 back to the initial position, preparing for the next push.

[0053] During the storage process, the water in the water tank 401 is transported through the water inlet pipe 406, and the water inlet flow rate can be controlled by the valve 407. When the stored vegetation needs to be moisturized, the water flows through the first water pipe 408 to the corresponding sprayers 409 on the top of each storage platform 301 to spray and moisturize the vegetation. The excess water after spraying flows through the drain port 307 on one side of the storage platform 301 through the second water pipe 410 into the water outlet pipe 411 on the top of the water tank 401, and finally returns to the water tank 401 to achieve water recycling. When the discharged water contains soil debris, it can be filtered through the filter screen 402 on the top of the water tank 401, and then the first electric slide rail 403 on the top of the filter screen 402 drives the first push plate 404 to clean the filtered soil debris on the filter screen 402, and then the cleaned impurities are collected through the collection boxes 405 on both sides of the water tank 401.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A greening vegetation transplanting device for ecological restoration in mining areas, characterized in that: The invention comprises a main platform (1), a box body (2) is installed on one side of the upper part of the main platform (1), a storage and fixing mechanism (3) is installed inside the box body (2), which is used to store and fix vegetation to be transplanted, a spraying and collecting mechanism (4) is installed at the bottom of the box body (2), which is used to spray the stored vegetation and collect and process wastewater, a pushing mechanism (5) is installed inside the main platform (1), which is used to push the transplanted vegetation, transplanting mechanisms (6) are installed at both ends of the pushing mechanism (5), which are used to transplant the required vegetation, a handle (7) is fixedly installed at the rear end of the main platform (1), and a plurality of universal wheels (8) are installed at the bottom of the main platform (1).

2. The greening vegetation transplanting device for ecological restoration of mining areas according to claim 1 is characterized in that: The storage fixing mechanism (3) comprises a plurality of storage platforms (301) fixedly mounted inside the box body (2), and a fixing block (302) is mounted on both sides of the upper part of the plurality of storage platforms (301), and a first sliding groove (303) is arranged on one side of the fixing block (302).

3. The greening vegetation transplanting device for ecological restoration of mining areas according to claim 2 is characterized in that: The plurality of storage tables (301) are installed in an upper and lower position relationship.

4. The greening vegetation transplanting device for ecological restoration of mining areas according to claim 1 is characterized in that: Two first fixing clamps (304) are installed on the bottom storage platform (301) in the box body (2), and the two first fixing clamps (304) are respectively slidably connected to the first sliding groove (303), a telescopic rod (305) is connected between the two first fixing clamps (304), and a first clamping hole (306) is provided on one side of the two first fixing clamps (304).

5. The greening vegetation transplanting device for ecological restoration of mining areas according to claim 1 is characterized in that: A plurality of second fixing clamps (308) are installed on the central storage platform (301) in the box body (2), wherein a telescopic rod (305) is connected between two corresponding second fixing clamps (308), a second clamping hole (309) is provided on one side of each of the plurality of second fixing clamps (308), and the plurality of second fixing clamps (308) are respectively slidably connected to the first sliding groove (303).

6. The greening vegetation transplanting device for ecological restoration of mining areas according to claim 1 is characterized in that: A plurality of third fixing clamps (310) are installed on the upper storage platform (301) in the box body (2), wherein a telescopic rod (305) is also connected between two corresponding third fixing clamps (310), a third clamping hole (311) is provided on one side of the plurality of third fixing clamps (310), the plurality of third fixing clamps (310) are respectively slidably connected to the first sliding groove (303), and a drainage outlet (307) is provided on one side of the plurality of storage platforms (301).

7. The greening vegetation transplanting device for ecological restoration of mining areas according to claim 1 is characterized in that: The spraying and collecting mechanism (4) comprises a water tank (401) fixedly mounted at the bottom of the box body (2); a filter screen (402) is mounted inside the water tank (401); first electric slide rails (403) are mounted on both sides of the upper part of the filter screen (402); a first push plate (404) is connected between the moving seats of the two first electric slide rails (403); and collection boxes (405) are mounted on both sides of the water tank (401).

8. The greening vegetation transplanting device for ecological restoration of mining areas according to claim 7 is characterized in that: A water inlet pipe (406) is installed on the upper part of the water tank (401), one end of the water inlet pipe (406) is connected to the inside of the water tank (401), a valve (407) is installed around the outside of the water inlet pipe (406), a plurality of first water diversion pipes (408) are arranged on one side of the water inlet pipe (406), the plurality of first water diversion pipes (408) are respectively installed corresponding to the plurality of storage platforms (301), a sprayer (409) is installed on one end of the plurality of first water diversion pipes (408), the drainage ports (307) arranged on one side of the plurality of storage platforms (301) are respectively installed corresponding to the plurality of second water diversion pipes (410), two water outlet pipes (411) are installed on the upper part of the water tank (401), the plurality of second water diversion pipes (410) are respectively installed corresponding to the water outlet pipes (411).

9. The greening vegetation transplanting device for ecological restoration of mining areas according to claim 1 is characterized in that: The pushing mechanism (5) comprises second electric slide rails (501) installed on both sides of the bottom of the main platform (1); the upper parts of the movable seats on the two second electric slide rails (501) are fixedly installed with hydraulic rods (502); the output ends of the two hydraulic rods (502) are fixedly installed with placement blocks (503); a plurality of slideways (504) are arranged on the placement blocks (503); long strips (505) are installed on both sides of the upper part of the placement blocks (503); a second slide groove (506) is arranged on one side of the two long strips (505); and a second push plate (507) is slidably installed between the two second slide grooves (506).

10. The greening vegetation transplanting device for ecological restoration of mining areas according to claim 1 is characterized in that: The transplant mechanism (6) comprises rotating shafts (601) rotatably mounted on both sides of the placement block (503); a connecting frame (602) is mounted at the bottom of each of the two rotating shafts (601); one end of each of the two connecting frames (602) is respectively connected to a first clamp (603) and a second clamp (604); a rotating rod (605) is rotatably mounted between the first clamp (603) and the second clamp (604); and a plurality of spikes (606) are respectively arranged at the bottom of each of the first clamp (603) and the second clamp (604).

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