Portable rice seedling raising device

Abstract

The utility model discloses a convenient rice seedling raising device, and relates to the technical field of rice seed soaking and seedling raising. A heating disc is arranged in the middle of the upper surface of the heating base; the culture tank is placed on the upper surface of the heating base, the culture tank is provided with a placing groove for placing rice seeds, one side wall surface of the placing groove is provided with a through filtering hole, the inner bottom surface of the placing groove is provided with a strip-shaped first magnet, the positioning plate is placed on the inner bottom surface of the placing groove, and the positioning plate is arranged on the inner bottom surface of the placing groove. A strip-shaped first magnet is arranged on the bottom surface of the positioning plate, a strip-shaped second magnet is arranged on the bottom surface of the positioning plate, the first magnet is connected with the second magnet in a magnetic attraction manner, and a plurality of positioning hole groups which are arranged in a linear manner are formed in the upper surface of the positioning plate. Through the matched design of the heating base, the culture tank and the positioning plate, on one hand, rice seeds are cultured, and preparation is made for subsequent seedling culture; on the other hand, it can be guaranteed that the rice seeds are distributed on the inner bottom face of the culture tank in a small pile mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to rice seed soaking and seedling raising technical field, concretely relates to a portable rice seedling raising device BACKGROUND

[0002] Rice seed soaking and seedling raising are important links in rice production, which are directly related to the germination rate of rice, the quality of seedlings and the final yield. I will introduce the process and points of rice seed soaking and seedling raising in detail.

[0003] In the prior art, the publication number of a kind of portable rice seed soaking and seedling raising integrated device for CN206371069U, it relates to a seed soaking and seedling raising integrated device. Seed soaking and seedling raising in the prior art are operated separately, the temperature of seed soaking needs to be changed multiple times, and the temperature is difficult to control. Meanwhile, the two processes are complex and tedious, time-consuming and laborious. The heating disc is a temperature regulating heating disc, and its shape is rectangular. The heating frame is located directly above the heating disc with a gap between them. The shape of the heating frame matches the heating disc. The bottom of the heating frame is detachably connected to the heating disc by four end connectors. The culture tank is located in the gap between the heating disc and the heating frame and is in sliding cooperation with the gap. The outer wall of the heating disc is provided with a first temperature sensor and a first temperature display. The outer wall of the heating frame is provided with a second temperature sensor and a second temperature display. A plurality of first drainage holes are formed in the heating frame. At least one second drainage hole is formed in the sidewall of the culture tank.

[0004] However, the existing technology does not have a positioning structure for rice seeds located in the culture tank, which makes the germination of the cultivated rice seeds inconsistent. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the present application solves the problem that the existing technology does not have a positioning structure for rice seeds located in the culture tank, which makes the germination of the cultivated rice seeds inconsistent.

[0006] In order to achieve the above purpose, the technical solution adopted by the present application is as follows: a portable rice seedling raising device, comprising a heating base, a culture tank and a positioning plate, the middle position of the upper surface of the heating base is provided with a heating disc;

[0007] The culture tank is placed on the upper surface of the heating base. The culture tank has a placing groove for placing rice seeds. A through filter hole is formed in one side wall of the placing groove. A first magnet in the shape of a strip is arranged on the inner bottom surface of the placing groove,

[0008] The positioning plate is placed on the inner bottom surface of the placing groove, the bottom surface of the positioning plate is provided with a strip-shaped second magnet, the first magnet is magnetically connected with the second magnet, and the upper surface of the positioning plate is provided with a plurality of groups of positioning holes arranged in a linear shape.

[0009] In order to better realize the utility model, further, each group of the positioning hole group has a plurality of positioning holes, a first adjusting ring is threadedly connected to the positioning hole, and first knob grooves are equally spaced and arranged on the upper surface of the first adjusting ring.

[0010] In order to better realize the utility model, further, a second adjusting ring is threadedly connected to the first adjusting ring, and second knob grooves are equally spaced and arranged on the upper surface of the second adjusting ring.

[0011] In order to better realize the utility model, further, a plurality of supporting seats are arranged around the upper surface of the heating base, and connecting heads are arranged on the supporting seats.

[0012] The rice seedling raising device further comprises a surrounding frame, the surrounding frame has a vertically-through soil placing cavity, a plurality of connecting grooves are arranged around the bottom surface of the surrounding frame, the connecting heads are inserted into the connecting grooves, and the bottom surface of the surrounding frame is attached to the top surface of the culture tank,

[0013] The upper surfaces of the opposite sides of the soil placing cavity are both provided with water injection grooves, a plurality of surrounding frame through holes are arranged on the side wall surface of the water injection groove close to the soil placing cavity and in communication with the soil placing cavity, and a plurality of surrounding frame through holes are arranged on the side wall surface of the water injection groove away from the soil placing cavity and in communication with the outside of the surrounding frame.

[0014] In order to better realize the utility model, further, a gate groove is further arranged on the upper surface of the side wall surface of the water injection groove away from the soil placing cavity, and a gate plate is inserted into the gate groove.

[0015] In order to better realize the utility model, further, the rice seedling raising device further comprises a soil guide disc, the soil guide disc is hung in the soil placing cavity of the surrounding frame through a hanging folded edge,

[0016] The soil guide disc has a top-opened soil storage cavity, the bottom of the soil guide disc is provided with transverse strip-shaped channels and longitudinal strip-shaped channels arranged in a longitudinal and transverse interlaced mode, and the transverse strip-shaped channels and the longitudinal strip-shaped channels are both in communication with the soil storage cavity.

[0017] And, the transverse strip-shaped channels and the longitudinal strip-shaped channels are arranged above the positioning plate, and the orthogonal projection of any transverse strip-shaped channel on the upper surface of the positioning plate corresponds to the position between two adjacent positioning hole groups, and the orthogonal projection of any longitudinal strip-shaped channel on the upper surface of the positioning plate corresponds to the position between two adjacent positioning holes in the same positioning hole group.

[0018] The distance between two adjacent positioning hole groups is greater than or equal to the distance between two adjacent positioning holes in the same positioning hole group.

[0019] In order to better realize the utility model, further, the distance between the bottom surface of the transverse strip-shaped channel and the upper surface of the positioning plate, and the distance between the bottom surface of the longitudinal strip-shaped channel and the upper surface of the positioning plate are all less than the distance between two adjacent positioning holes in the same positioning hole group.

[0020] Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:

[0021] 1. The utility model discloses a heating base, culture tank and positioning plate cooperate and design, on the one hand, realize the cultivation of rice seeds, on the other hand, still can guarantee that rice seeds are distributed in the form of small piles on the bottom surface in the culture tank.

[0022] 2. The utility model discloses a plurality of positioning holes in each positioning hole group, a first adjusting ring is threadedly connected on the positioning hole, and a plurality of first knob grooves are equidistantly arranged on the upper surface of the first adjusting ring, so that the diameter of the positioning hole can be adjusted according to the cultivation requirements of rice seeds, the spacing and the amount of rice seed accumulation are adjusted, and the plurality of first knob grooves are convenient for the operator to hold, place and screw.

[0023] 3. The utility model discloses a second adjusting ring is threadedly connected in the first adjusting ring, a plurality of second knob grooves are equidistantly arranged on the upper surface of the second adjusting ring, and the diameter of the positioning hole is further adjusted.

[0024] 4. The utility model discloses a frame design, which is convenient for placing soil in the soil placing cavity of the frame, and further cultivating the germinated rice.

[0025] 5. The utility model discloses a frame through -hole, water injection groove and gate plate cooperate and design, which is convenient for irrigating water in the soil placing cavity, and the water in the soil placing cavity can flow out by opening the gate plate.

[0026] 6. This utility model, through the design of the soil guide plate, allows the soil (loose and fine) to first enter the soil storage chamber, and then enter the horizontal strip channel and the vertical strip channel. The soil then falls into the cultivation trough around the rice seedlings after germination. Finally, the soil guide plate is lifted, allowing the soil to fall slowly, avoiding the soil being placed directly into the frame, which would cause the soil to vertically impact the rice seedlings in the cultivation trough during the placement process, resulting in the seedlings breaking.

[0027] 7. This utility model, by designing that the distance between the bottom surface of the transverse strip channel and the upper surface of the positioning plate, and the distance between the bottom surface of the longitudinal strip channel and the upper surface of the positioning plate are both smaller than the distance between two adjacent positioning holes in the same group of positioning holes, ensures that the soil does not vertically impact the germinating rice seedlings in the cultivation trough during the placement process, while shortening the length of the transverse and longitudinal strip channels, making it easier for the soil to pass through and avoiding blockage. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is an exploded view of the present invention;

[0030] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0031] Figure 3 This is a schematic diagram of the heating base in this utility model;

[0032] Figure 4 This is a schematic diagram of the culture tank in this utility model;

[0033] Figure 5 This is a schematic diagram of the positioning plate in this utility model;

[0034] Figure 6 for Figure 5 A bottom view;

[0035] Figure 7 This is a schematic diagram of the structure of the frame in this utility model;

[0036] Figure 8 for Figure 7 Schematic diagram of the middle gate plate;

[0037] Figure 9 forFigure 7 A bottom view;

[0038] Figure 10 This is a schematic diagram of the soil guide disc in this utility model;

[0039] Figure 11 for Figure 10 Top view;

[0040] Figure 12 for Figure 10 Side view;

[0041] Figure 13 This is a schematic diagram of the soil guide disc in this utility model from a bottom view.

[0042] In the diagram: 100-Heating base; 101-Heating plate; 102-Support base; 103-Connector; 200-Cultivation tank; 201-Filter hole; 202-First magnet; 300-Positioning plate; 301-First adjusting ring; 302-First knob groove; 303-Second adjusting ring; 304-Second knob groove; 305-Second magnet; 400-Frame; 401-Frame through hole; 402-Water injection tank; 403-Gate; 404-Connecting groove; 500-Soil guide plate; 501-Soil storage chamber; 502-Transverse strip channel; 503-Vertical strip channel; 504-Hanging folded edge. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0044] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0045] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0046] In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, if the terms "first", "second" and the like appear in the description of the present application, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0047] In addition, if the terms "horizontal", "vertical" and the like appear in the description of the present application, they do not mean that the component must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0048] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, if the terms "arrangement", "installation", "connection", "connection" appear, they should be understood in a broad sense, for example, they can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0049] Embodiment one

[0050] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 The utility model discloses a portable rice seedling raising device, including heating base 100, culture tank 200 and positioning plate 300, the middle position of heating base 100 upper surface is provided with heating disc 101;

[0051] Culture tank 200 is placed on the upper surface of heating base 100, culture tank 200 has the placement recess of placing rice seeds, the side wall surface of placement recess is provided with the through filter hole 201, the inner bottom surface of placement recess is provided with the first magnet 202 of strip shape,

[0052] The positioning plate 300 is placed on the inner bottom surface of the placing groove, the bottom surface of the positioning plate 300 is provided with a strip-shaped second magnet 305, the first magnet 202 is magnetically connected with the second magnet 305, and the upper surface of the positioning plate 300 is provided with a plurality of groups of positioning holes arranged in a linear type.

[0053] Specifically, the thickness of the positioning plate 300 can be 10mm-50mm.

[0054] Through the cooperation design of the heating base 100, the culture tank 200 and the positioning plate 300, on the one hand, the cultivation of rice seeds is realized; on the other hand, the rice seeds are distributed in the form of small piles on the inner bottom surface of the culture tank 200.

[0055] As shown in Figure 1 , Figure 2 and Figure 6 , in the embodiment, each group of the positioning hole groups has a plurality of positioning holes, a first adjusting ring 301 is threadedly connected to the positioning holes, and a first knob groove 302 is arranged on the upper surface of the first adjusting ring 301 at equal intervals.

[0056] Through the design that each group of the positioning hole groups has a plurality of positioning holes, a first adjusting ring 301 is threadedly connected to the positioning holes, and a first knob groove 302 is arranged on the upper surface of the first adjusting ring 301 at equal intervals, the diameter of the positioning hole can be adjusted according to the needs of the cultivation of rice seeds, so as to adjust the interval and the amount of rice seed accumulation. The plurality of first knob grooves 302 are cooperated to facilitate the taking, placing and screwing of the operator.

[0057] As shown in Figure 1 , Figure 2 , Figure 5 , in the embodiment, a second adjusting ring 303 is threadedly connected in the first adjusting ring 301, and a second knob groove 304 is arranged on the upper surface of the second adjusting ring 303 at equal intervals.

[0058] Through the design that a second adjusting ring 303 is threadedly connected in the first adjusting ring 301, and a second knob groove 304 is arranged on the upper surface of the second adjusting ring 303 at equal intervals, the diameter of the positioning hole is further adjusted. The plurality of second knob grooves 304 are cooperated to facilitate the taking, placing and screwing of the operator.

[0059] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 7 and Figure 9As shown, in the embodiment, a plurality of support seats 102 are arranged around the upper surface of the heating base 100, and a connecting head 103 is arranged on the support seat 102.

[0060] The rice seedling raising device further comprises a surrounding frame 400, the surrounding frame 400 has a vertically-through soil placing cavity, a plurality of connecting grooves 404 are arranged around the bottom surface of the surrounding frame 400, the connecting head 103 is inserted into the connecting groove 404, and the bottom surface of the surrounding frame 400 is attached to the top surface of the culture tank 200,

[0061] The upper surfaces of the opposite sides of the soil placing cavity are provided with water injection grooves 402, a plurality of surrounding frame through holes 401 are arranged on the side wall surface close to the soil placing cavity and communicated with the soil placing cavity, and a plurality of surrounding frame through holes 401 are arranged on the side wall surface away from the soil placing cavity and communicated with the outside of the surrounding frame 400.

[0062] Through the design of the surrounding frame 400, the soil can be conveniently placed in the soil placing cavity of the surrounding frame 400, and the rice after germination can be further cultivated.

[0063] As shown in Figure 8 , in the embodiment, the upper surface of the side wall surface away from the soil placing cavity of the water injection groove 402 is further provided with a gate groove, and a gate plate 403 is inserted into the gate groove.

[0064] Through the cooperative design of the surrounding frame through hole 401, the water injection groove 402 and the gate plate 403, the irrigation water in the soil placing cavity is facilitated; when the gate plate 403 is opened, the water injected into the soil placing cavity can flow out.

[0065] As shown in Figure 1 , Figure 2 , Figure 10 , Figure 11 , Figure 12 and Figure 13 , in the embodiment, the rice seedling raising device further comprises a soil guide disc 500, the soil guide disc 500 is hung in the soil placing cavity of the surrounding frame 400 through a hanging folded edge 504,

[0066] The soil guide disc 500 has a top-opened soil storage cavity 501, the bottom of the soil guide disc 500 is provided with transversely and longitudinally staggered transverse strip-shaped channels 502 and longitudinal strip-shaped channels 503, and the transverse strip-shaped channels 502 and the longitudinal strip-shaped channels 503 are communicated with the soil storage cavity 501;

[0067] And, the transverse strip-shaped channels 502 and the longitudinal strip-shaped channels 503 are arranged above the positioning plate 300, the orthographic projection of any transverse strip-shaped channel 502 on the upper surface of the positioning plate 300 corresponds to the position between two adjacent positioning hole groups, and the orthographic projection of any longitudinal strip-shaped channel 503 on the upper surface of the positioning plate 300 corresponds to the position between two adjacent positioning holes in the same positioning hole group.

[0068] The distance between two adjacent positioning hole groups is greater than or equal to the distance between two adjacent positioning holes in the same positioning hole group.

[0069] Through the design of the soil guide disc 500, the soil (loose and scattered) first enters the soil storage cavity 501, and then enters the transverse strip-shaped channels 502 and the longitudinal strip-shaped channels 503, and then falls to the area around the germinated rice seedlings in the culture tank 200, and finally the soil guide disc 500 is lifted up, so that the soil falls slowly, avoiding the soil being directly placed into the surrounding frame 400, which causes the soil to directly impact the germinated rice seedlings in the culture tank 200 during the placing process, resulting in the breaking of the seedlings.

[0070] As shown in Figure 1 , Figure 10 , Figure 11 , Figure 12 and Figure 13 In this embodiment, the distance between the bottom surface of the transverse strip-shaped channel 502 and the upper surface of the positioning plate 300 and the distance between the bottom surface of the longitudinal strip-shaped channel 503 and the upper surface of the positioning plate 300 are both less than the distance between two adjacent positioning holes in the same positioning hole group.

[0071] Through the design that the distance between the bottom surface of the transverse strip-shaped channel 502 and the upper surface of the positioning plate 300 and the distance between the bottom surface of the longitudinal strip-shaped channel 503 and the upper surface of the positioning plate 300 are both less than the distance between two adjacent positioning holes in the same positioning hole group, the length of the transverse strip-shaped channel 502 and the longitudinal strip-shaped channel 503 is shortened on the basis of ensuring that the soil does not directly impact the germinated rice seedlings in the culture tank 200 vertically during the placing process, so that the soil is more easily passed through and is prevented from being blocked.

[0072] Working principle:

[0073] The selected good rice seeds are placed in the culture tank 200 and the positioning holes of the positioning plate 300, water is injected, and the culture tank 200 with the rice seeds is placed above the heating base 100. The heating disc 101 is started to heat, the heating temperature of the heating disc 101 is set, and the heating temperature of the heating disc 101 is displayed in real time on the first temperature display (not labeled in the figure, the installation of the first temperature sensor and the first temperature display belongs to the existing mature technology) through the first temperature sensor. A cover is added on the top of the culture tank 200, and the temperature is adjusted, the water is changed, and the disinfection process is performed multiple times according to the cultivation requirements of the rice seeds during the process until the rice seeds germinate to form rice germinated seeds (seedlings) that can be cultivated,

[0074] The frame 400 is placed above the culture tank 200, and the frame 400 is inserted with the heating base 100 through the connecting head 103 and the connecting groove 404 to support;

[0075] The soil guide disc 500 is hung on the frame 400, soil is added to the frame 400 through the soil guide disc 500, and the re-cultivation process of the seedlings is performed. The existing mature heating element can also be arranged on the wall surface around the frame 400. The temperature of the heating element is displayed in real time on the second temperature display through the second temperature sensor, so as to ensure that the seedlings can be effectively supported by the temperature. The culture is carried out according to the requirements of rice seedling cultivation until the rice seedlings grow to the size that can be put into the rice field. Finally, the frame 400 is disassembled, and the culture tank 200 is directly installed in the seedling planting machine to carry out the seedling planting work in the rice field.

[0076] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A convenient rice seedling raising device, characterized in that: Including heating base (100), culture tank (200) and positioning plate (300), the middle position of the upper surface of the heating base (100) is provided with heating disc (101); The culture tank (200) is placed on the upper surface of the heating base (100), the culture tank (200) has a placing groove for placing rice seeds, a side wall surface of the placing groove is provided with a through filter hole (201), and an inner bottom surface of the placing groove is provided with a strip-shaped first magnet (202), The positioning plate (300) is placed on the inner bottom surface of the placing groove, the bottom surface of the positioning plate (300) is provided with a strip-shaped second magnet (305), the first magnet (202) and the second magnet (305) are magnetically connected, and a plurality of positioning hole groups are formed on the upper surface of the positioning plate (300) and are arranged in a linear type. 2.The portable rice seedling raising device according to claim 1, characterized in that: Each of the positioning hole groups has a plurality of positioning holes, and a first adjusting ring (301) is threadedly connected to the positioning holes, and a first knob groove (302) is formed on the upper surface of the first adjusting ring (301) at equal intervals. 3.The portable rice seedling raising device according to claim 2, characterized in that: A second adjusting ring (303) is threadedly connected to the first adjusting ring (301), and a second knob groove (304) is formed on the upper surface of the second adjusting ring (303) at equal intervals. 4.The portable rice seedling raising device according to claim 2 or 3, characterized in that: A plurality of support seats (102) are arranged around the upper surface of the heating base (100), and a connecting head (103) is arranged on the support seat (102); The rice seedling raising device further comprises a surrounding frame (400), the surrounding frame (400) has a vertically through soil placing cavity, a plurality of connecting grooves (404) are formed around the bottom surface of the surrounding frame (400), the connecting head (103) is inserted into the connecting grooves (404), and the bottom surface of the surrounding frame (400) is attached to the top surface of the culture tank (200), Water injection grooves (402) are formed on the upper surfaces of the opposite sides of the soil placing cavity, a plurality of surrounding frame through holes (401) are formed on the side wall surface of the water injection groove (402) close to the soil placing cavity and are communicated with the soil placing cavity, and a plurality of surrounding frame through holes (401) are formed on the other side wall surface of the water injection groove (402) away from the soil placing cavity and are communicated with the outside of the surrounding frame (400).

5. The portable rice seedling raising device according to claim 4, wherein: A gate groove is further formed on the upper surface of the other side wall surface of the water injection groove (402) away from the soil placing cavity, and a gate plate (403) is inserted into the gate groove. 6.The portable rice seedling raising device according to claim 5, characterized in that: The rice seedling raising device further comprises a soil guide disc (500), and the soil guide disc (500) is hung in the soil placing cavity of the surrounding frame (400) through a hanging folded edge (504). The mud guiding disc (500) has a top-opened mud storage cavity (501), and the bottom of the mud guiding disc (500) is provided with transverse strip-shaped channels (502) and longitudinal strip-shaped channels (503) arranged in a crisscross manner, and the transverse strip-shaped channels (502) and the longitudinal strip-shaped channels (503) are communicated with the mud storage cavity (501); And the transverse strip-shaped channels (502) and the longitudinal strip-shaped channels (503) are located directly above the positioning plate (300), and the orthographic projection of any one of the transverse strip-shaped channels (502) on the upper surface of the positioning plate (300) corresponds to the position between two adjacent positioning hole groups, and the orthographic projection of any one of the longitudinal strip-shaped channels (503) on the upper surface of the positioning plate (300) corresponds to the position between two adjacent positioning holes in the same positioning hole group. The distance between two adjacent positioning hole groups is greater than or equal to the distance between two adjacent positioning holes in the same positioning hole group.

7. The portable rice seedling raising device according to claim 6, characterized in that: The distance between the bottom surface of the transverse strip-shaped channel (502) and the upper surface of the positioning plate (300) and the distance between the bottom surface of the longitudinal strip-shaped channel (503) and the upper surface of the positioning plate (300) are both less than the distance between two adjacent positioning holes in the same positioning hole group.

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