Vegetation slope protection device with windproof function

Abstract

The vegetation slope protection device with the windproof function comprises a protection assembly, the protection assembly comprises a main protection frame body, splicing parts arranged on the main protection frame body and vegetation planting parts arranged on the splicing parts, and a protection layer body is laid on the side, close to a mountain, of the main protection frame body; a protective spacing layer is arranged in the protective layer body; the wind-proof assembly comprises a wind-proof barrier arranged on the vegetation planting part, an inserting steel part arranged on the wind-proof barrier and a water supply pipeline arranged on the inserting steel part, the water supply pipeline is arranged on the side close to the interior of the main protection frame body, the wind-proof barrier is communicated with the water supply pipeline, a water dredging part is arranged on the wind-proof barrier, and the water dredging part is communicated with the water supply pipeline. The side slope and vegetation on the side slope are protected through the windproof assembly, and the protection assembly also has water guiding and water draining effects, so that the side slope can be further protected.

Description

Technical Field

[0001] The invention relates to the technical field of slope protection, and in particular to a vegetation slope protection device with wind protection function. Background Art

[0002] Slope refers to any geological body on the ground with an inclined surface facing the air, and is a type of landform widely distributed on the surface. In road engineering, slope is an important part of road construction, and is often used as an auxiliary structure to maintain the normal operation of the road. Road slope protection mainly uses masonry or concrete to form a certain structure to protect the slope. Due to its convenient material acquisition and relatively mature design and construction technology, it is called a more common protection method. Existing protection structures are mostly integrated structures, which are not convenient for planting different types of vegetation on the slope, and have poor wind resistance, which makes it easy for wind to damage the slope. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the problems existing in the above-mentioned existing vegetation slope protection device with wind protection function, the present invention is proposed.

[0005] Therefore, the purpose of the present invention is to provide a vegetation slope protection device with wind protection function, which is fixed by a bracket and does not require the cooperation of multiple people. By starting the motor to rotate the drill bit, the drilling depth can be controlled by turning the handle, and the operation is simple.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a vegetation slope protection device with windproof function, comprising:

[0007] The protection assembly comprises a main protection frame, a splicable component arranged on the main protection frame, and a vegetation planting piece arranged on the splicable component, wherein a protection layer body is laid on the side of the main protection frame close to the mountain, and a protection spacer layer is arranged inside the protection layer body; and

[0008] The windproof component includes a windproof barrier arranged on a vegetation planting piece, a plug-in steel piece arranged on the windproof barrier, and a water supply pipeline arranged on the plug-in steel piece. The water supply pipeline is arranged on a side close to the inside of a main protective frame. The windproof barrier is connected to the water supply pipeline, and a moisture diversion piece is arranged on the windproof barrier.

[0009] As a preferred solution of the vegetation slope protection device with windproof function described in the present invention, the splicable components include a main frame plate arranged on the main protection frame, a plurality of storage frames arranged on the main frame plate, and a storage space arranged on the storage frame, bracket buckles are arranged at both ends of the storage frame, and a matching buckle that matches the bracket buckle is arranged on the main protection frame, the vegetation planting piece is arranged in the storage space, and the storage space is sealed by the plurality of vegetation planting pieces;

[0010] The vegetation planting piece comprises a storage box body arranged in a storage space and a protective side net arranged on the storage space, and a planting layer is arranged in the storage box body.

[0011] As a preferred solution of the vegetation slope protection device with windproof function of the present invention, the windproof barrier includes a first frame body arranged on the storage frame, a second frame body rotatably connected to the first frame body, and an angle adjustment component arranged between the first frame body and the second frame body;

[0012] A connecting plate is provided between the second frame body and the storage frame, and bolts are provided between the connecting plates.

[0013] As a preferred solution of the vegetation slope protection device with windproof function described in the present invention, wherein: the angle adjustment component includes a connecting column arranged on the first frame, the upper end of the connecting column is sleeved with a driving sleeve, the upper end of the connecting column is provided with the first frame, the angle adjustment component also includes an extension plate arranged on the driving sleeve, a driving gear arranged on the extension plate, and a ring gear arranged on the first frame and meshing with the driving gear, and the extension plate is provided with a motor connected to the driving gear.

[0014] As a preferred solution of the vegetation slope protection device with windproof function of the present invention, the adjustment component further includes a driving block body rotatably connected to the first frame body, a rack slidably connected to the driving block body, and a first gear disposed in the driving block body and meshing with the rack gear, wherein a clamping block is provided on the driving block body.

[0015] The clamping block is provided with a driving member for driving the first gear to rotate.

[0016] As a preferred solution of the vegetation slope protection device with windproof function described in the present invention, the water supply pipeline extends from the protective layer body to the main protective frame body, a gap is provided between the main protective frame body and the main frame plate, a drainage pipe is provided in the gap, and the end of the drainage pipe extends to the planting layer in the storage box body.

[0017] As a preferred solution of the vegetation slope protection device with windproof function described in the present invention, wherein: a connecting plate is provided at the upper end of the second frame, a hinge is provided between the connecting plate and the upper end of the second frame, a first guide plate is hingedly connected to one end of the connecting plate away from the second frame, a slide plate is provided at the other end of the first guide plate, the slide plate is slidably connected to the upper end of the storage frame, and a second guide plate is provided on the remaining side walls of the second frame.

[0018] As a preferred solution of the vegetation slope protection device with windproof function described in the present invention, a control circuit is arranged in the main frame plate, and the control circuit is electrically connected to a plurality of motors.

[0019] The beneficial effects of the present invention are as follows: after the operator installs the first frame and the second frame, the operator plants vegetation. After planting, the operator adjusts the direction, direction and corresponding angle of the second frame, and then adjusts it according to the external wind force.

[0020] When the angle between the direction of the second frame and the direction of the wind is acute, the wind will blow a lot to the position between the two second frames. The position between the two frames is where vegetation is planted, and the vegetation can absorb more wind and external dust. This is suitable when the wind force is relatively small.

[0021] When the wind is too strong, adjust the direction of the second frame to be perpendicular to the wind direction. The wind will blow more onto the surface of the second frame. The guide strips on the second frame and the protective side net will divert the wind outward, disperse the wind force and reduce the wind force. This is suitable for times when the wind force is strong.

[0022] Moreover, with the above arrangement, when a sudden flood or heavy rain occurs on the slope, the inclined second frame and vegetation will block more water.

[0023] When the wind continues to be too strong, the second frame can be adjusted to block the vegetation, thereby protecting the slope vegetation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0025] Figure 1 It is a schematic diagram of the overall structure of the vegetation slope protection device with wind protection function of the present invention.

[0026] Figure 2 It is a schematic cross-sectional view of the overall structure of the vegetation slope protection device with wind protection function of the present invention.

[0027] Figure 3 It is a schematic diagram of the structural explosion of the vegetation slope protection device with wind protection function of the present invention.

[0028] Figure 4 It is a schematic diagram of the adjustment components of the vegetation slope protection device with wind protection function of the present invention.

[0029] Figure 5 The vegetation slope protection device with windproof function of the present invention Figure 4 Enlarged schematic diagram of part A in the middle.

[0030] Figure 6 It is a schematic diagram of the adjustment components of the vegetation slope protection device with windproof function of the present invention,

[0031] Figure 7 It is a bottom view schematic diagram of the adjustment components of the vegetation slope protection device with wind protection function of the present invention.

[0032] Figure 8 This is a schematic diagram of adjusting the second frame plate of the vegetation slope protection device with wind protection function of the present invention to different angles.

[0033] Among them, 100, protection component; 101, main protection frame; 102, splicing parts; 103, frame parts; 104, vegetation planting parts; 105, protection layer; 106, protection interval layer; 200, windproof component; 201, wind barrier; 202, drying parts; 203, water supply pipeline; 204, moisture diversion parts; 103a, main frame; 103b, storage frame; 103c, storage space; 103d, bracket buckle; 103e, matching buckle; 104a, storage box; 104b, protection edge Net; 201a, first frame; 201b, second frame; 201c, connecting plate; 300, angle adjustment component; 301, connecting column; 302, drive sleeve; 303, extension plate; 304, drive gear; 305, ring gear; 306, motor; 400, drive block; 401, rack; 402, first gear; 403, block; 404, drive member; 500, gap; 501, drain pipe; 502, connecting plate; 503, first guide plate; 504, slide plate; 505, second guide plate. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0037] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0038] Example 1

[0039] Reference Figure 1-8 , which is the first embodiment of the present invention, provides a vegetation slope protection device with windproof function, including a protection component 100. In this embodiment, the protection component 100 includes a main protection frame 101, a splicable component 102 arranged on the main protection frame 101, and a frame component 103 is arranged on the main protection frame 101, and a vegetation planting piece 104 is also arranged on the frame component 103. The main protection frame 101 is mainly arranged on the slope. Because the slope has a certain inclination angle, the main protection frame 101 is made of high-strength concrete material and filled with steel bars when it is set. A number of main protection frames 101 are set and evenly and equidistantly arranged. In order to achieve equidistant arrangement and facilitate installation, the operator can use a crane to splice the splicable component 102.

[0040] Furthermore, a protective layer body 105 is laid on the side of the main protective frame 101 close to the mountain, and a protective spacer layer 106 is provided in the protective layer body 105. In the present embodiment, the protective layer body 105 comprises a filling groove opened on the slope, and a protective net is laid in the filling groove. The operator lays a mixed layer body formed by concrete, gravel and covering soil in the filling groove. After laying, a protective layer body 105 having a certain hardness and hydrophobicity is formed, and the protective spacer layer 106 is a protective net.

[0041] Furthermore, the present invention also includes a windproof component 200. In this embodiment, the windproof component 200 includes a windproof barrier 201 arranged on the vegetation planting member 104. The windproof barrier 201 is mainly used to reduce the wind erosion of the main protective frame 101 caused by the external wind, and disperse and guide the wind to an angle parallel to the main protective frame 101, thereby reducing the wind erosion and impact on the main protective frame 101. The plug-in steel member 202 on the windproof barrier 201, in this embodiment, the plug-in steel member 20 2 comprises a wind-breaking plate arranged on the wind-proof barrier 201 and a plurality of guide plates arranged on the wind-breaking plate, the cross section of each guide plate is in the shape of a water drop, a water supply pipeline 203 is also arranged on the vegetation planting piece 104, the water supply pipeline 203 is arranged on a side close to the inside of the main protective frame 101, the wind-proof barrier 201 is connected with the water supply pipeline 203, a moisture diversion piece 204 is arranged on the wind-proof barrier 201, and the water supply pipeline 203 can transport moisture to each vegetation planting piece 104 for moisture supply.

[0042] Furthermore, in this embodiment, the splicing component 102 includes a main frame plate 103a arranged on the main protection frame body 101, a plurality of storage frames 103b arranged on the main frame plate 103a, and a storage space 103c arranged on the storage frame 103b. The main frame plate 103a is connected to the main protection frame body 101 by steel bars, and bracket buckles 103d are arranged at both ends of the storage frame 103b. The main protection frame body 101 is provided with a plurality of storage frames 103b arranged on the main frame plate 103a. The vegetation planting pieces 104 are arranged in the storage space 103c, and a plurality of vegetation planting pieces 104 seal the storage space 103c. During installation, the operator first fastens the main frame plate 103a with the bracket buckles 103d and the matching buckles 103e on both sides of the main protective frame 101. The purpose of the fastening is to position the main frame plate 103a and the main protective frame 101 in a facing state, and then pass steel bars between the two for positioning to complete the installation.

[0043] Preferably, in the present embodiment, the vegetation planting member 104 comprises a storage box body 104a disposed in the storage space 103c, and a planting layer is disposed in the storage box body 104a.

[0044] In this embodiment, the wind-resistant barrier 201 includes a first frame 201a arranged on a storage frame 103b, a second frame 201b rotatably connected to the first frame 201a, an angle adjustment component 300 arranged between the first frame 201a and the second frame 201b, and a protective side net 104b rotatably connected to both sides of the second frame 201b; a connecting plate 201c is provided between the second frame 201b and the storage frame 103b, a connecting steel member 201d is provided between the connecting plates 201c, and bolts are provided between the connecting steel member 201d and the connecting plate 201c.

[0045] Preferably, the second frame 201b is in an arc shape, and guide strips are provided on the second frame 201b and the protective side net 104b.

[0046] In this embodiment, the angle adjustment component 300 includes a connecting column 301 disposed on the first frame 201 a , a driving sleeve 302 is sleeved on the upper end of the connecting column 301 , and the first frame 201 a is disposed on the upper end of the connecting column 301 .

[0047] Furthermore, the angle adjustment component 300 also includes an extension plate 303 arranged on the drive sleeve 302, a drive gear 304 arranged on the extension plate 303, and a ring gear 305 arranged on the first frame 201a and meshing with the drive gear 304. A motor 306 connected to the drive gear 304 is provided on the extension plate 303, and the first frame 201a is connected to the lower end of the photovoltaic panel. When the motor 306 is started, it drives the drive gear 304 to rotate, and the drive gear 304 drives the ring gear 305 to rotate, thereby driving the first frame 201a to rotate in the horizontal direction.

[0048] In this embodiment, the adjustment component also includes a driving block body 400 rotatably connected to one end of the first frame body 201a, a rack 401 slidably connected to the driving block body 400, and a first gear 402 arranged in the driving block body 400 and meshing with the rack 401. A clamping block 403 is provided at the end of the rack 401 away from the driving block body 400. The clamping block 403 is hinged to the back side of the second frame plate, and the hinged position is set at the upper position of the second frame plate.

[0049] Furthermore, a driving member 404 is provided on the driving block 400 for driving the first gear 402 to rotate. The driving member 404 is a stepper motor 306. The stepper motor 306 drives the first gear 402 to rotate. The first gear 402 drives the rack 401 to slide. The sliding of the rack 401 will pull the second frame plate, so that the second frame plate rotates in the vertical direction with the lower end close to the first frame 201a as the rotation center.

[0050] A snap-in plate 502 is provided at the upper end of the second frame 201b, a hinge is provided between the snap-in plate 502 and the upper end of the second frame 201b, a first guide plate 503 is hingedly connected to one end of the snap-in plate 502 away from the second frame 201b, a slide plate 504 is provided at the other end of the first guide plate 503, the slide plate 504 is slidably connected to the upper end of the storage frame 103b, a matching groove for matching with the slide plate 504 is opened at the upper end of the storage frame 103b, and a second guide plate 505 is provided on the other side walls of the second frame 201b, and the flow direction of the second guide plate 505 is consistent with that of the guide plate on the wind breaking plate.

[0051] Furthermore, the water supply pipeline 203 extends from the protective layer body 105 to the main protective frame body 101, and a gap 500 is provided between the main protective frame body 101 and the main frame plate 103a. A drainage pipe 501 is provided in the gap 500, and the end of the drainage pipe extends to the planting layer in the storage box body 104a.

[0052] A control circuit is provided in the main frame plate 103 a , and the control circuit is electrically connected to the plurality of motors 306 , thereby synchronously controlling the plurality of motors 306 to start together.

[0053] Operation process: When laying the protective device, first lay the protective net in the filling groove. The operator forms a mixed layer by laying concrete, gravel and covering soil in the filling groove. After laying, a protective layer 105 with a certain hardness and hydrophobicity is formed. Then the main protective frame 101 is placed, and then the main protective frame 101 is positioned with steel bars. Then a gap 500 is opened between the main protective frame 101 and the main frame, and a drainage pipe 501 is installed in the gap 500. Then the vegetation planting piece 104 is installed on the main frame, and then the adjustment component is installed.

[0054] When adjusting the second frame 201b, the motor 306 rotates the driving gear 304, so that the driving gear 304 drives the ring gear 305 to rotate, and then drives the first frame 201a to rotate in the horizontal direction. The stepper motor 306 drives the first gear 402 to rotate, and the first gear 402 drives the rack 401 to slide, and the sliding of the rack 401 will pull the second frame 201b, so that the second frame 201b rotates in the vertical direction with the lower end close to the first frame 201a as the rotation center.

[0055] Furthermore, after the operator installs the first frame 201a and the second frame 201b, the operator plants the vegetation. After planting, the operator adjusts the direction, direction and corresponding angle of the second frame 201b, and then adjusts it according to the external wind force (such as Figure 8 ).

[0056] When the angle between the second frame 201b and the wind direction is an acute angle ( Figure 8 In (1), the wind will blow a lot to the position between the two second frames 201b. The position between the two frames is the position for planting vegetation, so that the vegetation can absorb more wind and external dust. This is suitable when the wind force is relatively small.

[0057] When the wind is too strong, adjust the second frame 201b to be perpendicular to the wind direction ( Figure 8 In (2), the wind will blow more toward the surface of the second frame 201b, and the guide strips on the second frame 201b and the protective side net 104b will guide the wind outward, disperse the wind force, and reduce the wind force. This is suitable for times when the wind force is strong.

[0058] Moreover, with the above arrangement, when a sudden flood or heavy rain occurs on the slope, the inclined second frame 201b and the vegetation will block more water.

[0059] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0060] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0061] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A vegetation slope protection device with wind protection function, characterized in that: include, A protection assembly (100) comprises a main protection frame (101), a splicable component (102) arranged on the main protection frame (101), a frame component (103) arranged on the main protection frame (101), and a vegetation planting piece (104) arranged on the frame component (103), wherein a protection layer (105) is laid on a side of the main protection frame (101) close to the mountain, and a protection spacer layer (106) is arranged inside the protection layer (105); and, The windproof component (200) comprises a windproof barrier (201) arranged on a vegetation planting member (104), a plug-in steel member (202) arranged on a main protective frame (101), and a water supply pipeline (203) arranged on the plug-in steel member (202), wherein the water supply pipeline (203) is arranged on a side close to the inside of the main protective frame (101), the windproof barrier (201) is connected to the water supply pipeline (203), and a moisture diversion member (204) is arranged on the windproof barrier (201).

2. The vegetation slope protection device with windproof function as claimed in claim 1, characterized in that: The frame component (103) comprises a main frame plate (103a) arranged on the main protection frame (101), a plurality of storage frames (103b) arranged on the main frame plate (103a), and a storage space (103c) arranged on the storage frame (103b); bracket buckles (103d) are arranged at both ends of the storage frame (103b); a matching buckle (103e) matching with the bracket buckle (103d) is arranged on the main protection frame (101); the vegetation planting piece (104) is arranged in the storage space (103c); and the plurality of vegetation planting pieces (104) seal the storage space (103c); The vegetation planting member (104) comprises a storage box body (104a) arranged in a storage space (103c), and a planting layer is provided in the storage box body (104a).

3. The vegetation slope protection device with windproof function as claimed in claim 2, characterized in that: The windproof barrier (201) comprises a first frame (201a) arranged on a storage frame (103b), a second frame (201b) rotatably connected to the first frame (201a), an angle adjustment component (300) arranged between the first frame (201a) and the second frame (201b), and a protective side net (104b) rotatably connected to both ends of the second frame (201b); A connecting plate (201c) is provided between the second frame body (201b) and the storage frame (103b), and bolts are provided between the connecting plates (201c).

4. The vegetation slope protection device with windproof function as claimed in claim 3 is characterized by: The angle adjustment component (300) comprises a connecting column (301) arranged on a first frame (201a), a driving sleeve (302) being sleeved on the upper end of the connecting column (301), and the first frame (201a) being arranged on the upper end of the connecting column (301). The angle adjustment component (300) further comprises an extension plate (303) arranged on the driving sleeve (302), a driving gear (304) arranged on the extension plate (303), and a ring gear (305) arranged on the first frame and meshing with the driving gear (304), and a motor (306) connected to the driving gear (304) is arranged on the extension plate (303).

5. The vegetation slope protection device with windproof function as claimed in claim 4, characterized in that: The adjustment component further comprises a driving block (400) rotatably connected to the first frame (201a), a rack (401) slidably connected to the driving block (400), and a first gear (402) disposed in the driving block (400) and meshing with the rack (401); a clamping block (403) is provided on the driving block (400). The clamping block (403) is provided with a driving member (404) for driving the first gear (402) to rotate.

6. The vegetation slope protection device with windproof function as claimed in claim 1, characterized in that: The water supply pipeline (203) extends from the protective layer body (105) to the main protective frame body (101), a gap (500) is provided between the main protective frame body (101) and the main frame plate (103a), a drainage pipe (501) is provided in the gap (500), and the end of the drainage pipe extends to the planting layer in the storage box body (104a).

7. The vegetation slope protection device with windproof function as claimed in claim 6, characterized in that: A snap-in plate (502) is provided at the upper end of the second frame (201b), and a hinge is provided between the snap-in plate (502) and the upper end of the second frame (201b); one end of the snap-in plate (502) away from the second frame (201b) is hingedly connected to a first guide plate (503); a slide plate (504) is provided at the other end of the first guide plate (503); the slide plate (504) is slidably connected to the upper end of the storage frame (103b); and a second guide plate (505) is provided on the remaining side walls of the second frame (201b).

8. The vegetation slope protection device with windproof function as claimed in claim 4, characterized in that: A control circuit is provided inside the main frame plate (103a), and the control circuit is electrically connected to a plurality of motors (306).

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