Region delineation device

Abstract

The utility model provides an area delineation device which comprises a plurality of chain links, a plurality of connecting rods, a plurality of connecting rods, a plurality of connecting rods and a plurality of connecting rods, the locking joint is hinged to the end of the chain joint at the tail end, a mounting groove is formed in the tail end of the locking joint, the width of the mounting groove is consistent with the thickness of the chain joint, and the chain joint can be arranged in the mounting groove; the locking screw is in threaded connection with the locking section, and when a certain chain section is arranged in the mounting groove, the locking section and the chain section can be fixed by screwing the locking screw; the device is reasonable in design structure, adopts a mode of hinging a plurality of chain links end to end to replace an existing measuring tape structure, can be assembled into rectangular shapes with different areas according to actual requirements, has the characteristics of stable structure and easiness in operation, and is beneficial to the counting accuracy in the crop research process of a test field.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural tools, and particularly relates to a region delineating device. Background Art

[0002] Currently, crop research and testing often requires measuring crop growth per unit area. For example, to investigate the number of weeds or insects per unit area or to collect soil samples, a designated area within the experimental field is designated and crop traits are counted. A common tool for demarcating areas is a tape measure. Experimenters bend the tape measure into a circle, place it in the experimental field, and then measure the crop growth within the circle. Alternatively, existing operators use wire to bend into a fixed area, or place multiple wooden sticks in the field to form a designated area. However, due to the soft texture of the tape measure, the circular shape after bending is very irregular. The wire bending process is time-consuming and labor-intensive, and cannot be adjusted to different area conditions. The assembled wooden sticks can also make positioning difficult during operation. Therefore, in practice, due to the different area demarcations for different crops and research subjects, using tape measures, wire, or wooden sticks to draw circles can be difficult, inaccurate, and inconvenient to calculate area. Utility Model Content

[0003] The utility model provides an area delineation device, which adopts a plurality of chain links hinged at the end to replace the existing tape measure structure. The device can be assembled into rectangular shapes of different areas according to actual needs. It has the characteristics of stable structure and easy operation, which is conducive to the accuracy of counting during experimental field crop research.

[0004] The technical solution adopted by the utility model is: a region delineation device, comprising:

[0005] There are multiple chain links, and two adjacent chain links are hinged to each other end to end;

[0006] The locking joint is hinged at the end of the last chain link, and a mounting slot is provided at the tail end thereof. The width of the mounting slot is consistent with the thickness of the chain link, and the chain link can be placed in the mounting slot;

[0007] The locking screw is threadedly connected to the locking link. When a chain link is placed in the installation groove, the locking link and the chain link can be fixed by tightening the locking screw.

[0008] A first boss extends outward from the center of the head end of the chain link, and a slot is provided in the middle position of the tail end. In two adjacent chain links, the first boss of the rear chain link can be inserted into the slot of the front chain link. Through holes are provided on the first boss of the chain link and the tail end of the chain link. The connecting shaft is inserted into the through hole to realize the connection of the two adjacent chain links.

[0009] A second boss extends outward from the center of the head end of the locking link. The second boss can be inserted into the slot of the adjacent chain link and connects the chain link to the locking link through a connecting shaft.

[0010] Positioning components are provided at the hinges between the two adjacent chain links and at the hinges between the locking link and the chain link.

[0011] The positioning assembly includes a plurality of slots arranged on the surfaces of the first boss and the second boss, and the slots are evenly distributed around the central axis of the connecting shaft; it also includes a spring plunger installed at the end of the chain link and capable of extending into the slot, and the steel ball at the end of the spring plunger can be placed in any slot to achieve the positioning of two adjacent chain links or a chain link and a locking link.

[0012] Scale lines are provided on the surface of the chain link.

[0013] The beneficial effects of the utility model are:

[0014] The utility model has a reasonable design structure and adopts a plurality of chain links hinged at the end to replace the existing tape measure structure. The device can be assembled into rectangular shapes of different areas according to actual needs. It has the characteristics of stable structure and easy operation, which is conducive to the accuracy of counting during experimental field crop research. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 This is a diagram of the use state of the utility model;

[0017] Figure 3 A perspective view of a chain link of the present invention;

[0018] Figure 4 A three-dimensional diagram of the locking joint of the present invention;

[0019] Figure 5 It is a partial cross-sectional view of the present utility model.

[0020] in:

[0021] 1. Chain link; 101. First boss; 102. Slot; 103. Scale line; 104. Threaded hole; 105. Slot;

[0022] 2. Connecting shaft;

[0023] 3. Locking joint; 301. Second boss; 302. Mounting slot;

[0024] 4. Locking screw;

[0025] 5. Spring plunger. DETAILED DESCRIPTION

[0026] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0027] As shown in the figure, a region demarcation device includes a chain link 1, a locking link 3, a locking screw 4, a connecting shaft 2 and a spring plunger 5.

[0028] There are multiple chain links 1, and two adjacent chain links 1 are hinged to each other at their ends; wherein, a first boss 101 extends outward from the center of the head end of the chain link 1, and a slot 105 is provided in the middle position of the tail end. Of the two adjacent chain links 1, the first boss 101 of the rear link 1 can be inserted into the slot 105 of the front link 1, and through holes are provided on the first boss 101 of the chain link 1 and the tail end of the chain link 1. The connecting shaft 2 is inserted into the through hole to realize the connection of the two adjacent chain links 1.

[0029] The locking link 3 is hinged at the end of the last link 1. A mounting groove 302 is formed at its tail end. The width of the mounting groove 302 is the same as the thickness of the link 1. The link 1 can be placed in the mounting groove 302. A second boss 301 extends outward from the center of the head end of the locking link 3. The second boss 301 can be inserted into the slot 105 of the adjacent link 1 and connect the link 1 to the locking link 3 via the connecting shaft 2. The mounting groove 302 at the tail end of the locking link 3 is the same as the height of a single link 1 (in this example, the cross-section of a single link 1 is square). Figure 2 As shown, the chain link 1 can enter the installation groove 302, so that the final rectangle is more standard.

[0030] The locking screw 4 is threadedly connected to the locking link 3. When a certain chain link 1 is placed in the mounting groove 302, the locking link 3 can be fixed to the chain link 1 by tightening the locking screw 4. Specifically, the locking screw 4 is installed at the tail end of the locking link 3 and can extend toward the mounting groove 302. After a certain chain link 1 is placed in the mounting groove 302 of the locking link 3, the locking screw 4 can be tightened to apply pressure to the chain link 1, thereby achieving a relatively fixed connection between the locking link 3 and the chain link 1.

[0031] Positioning components are provided at the hinges between the two adjacent chain links 1 and at the hinges between the locking link 3 and the chain link 1 .

[0032] Specifically, the positioning assembly includes a plurality of slots 102 arranged on the surfaces of the first boss 101 and the second boss 301, and the slots 102 are evenly distributed around the central axis of the connecting shaft 2; it also includes a spring plunger 5 installed at the end of the chain link 1 and capable of extending into the slot 105, and the spring plunger 5 is installed in the threaded hole 104 opened at the end of the chain link 1. The steel ball at the end of the spring plunger 5 can be placed in any slot 102 to achieve the positioning of two adjacent chain links 1 and the chain link 1 and the locking link 3. In this example, the number of slots 102 is four. In other embodiments, the number of slots 102 can be eight, so that the device can be assembled into other polygonal structures in addition to a rectangular structure.

[0033] The chain link 1 is provided with scale marks 103 on its surface, allowing the locking link 3 to be quickly positioned on the chain link 1 at the designated scale mark 103. This allows the device to be quickly assembled into commonly used area shapes. Furthermore, when the chain link 1 is in a straight line, the area demarcation device can also be used as a ruler. For example, the scale on the demarcation device ranges from 0 to 100 cm. At the 20 cm mark, after bending and positioning the locking link 3, the resulting square area is the designated area. Other desired areas can also be quickly and conveniently obtained using this method.

[0034] When using this area demarcation device, by checking the scale lines 103 on the chain link 1, the locking link 3 is folded to the chain link 1 of the specified size, and the locking screw 4 is tightened to fix the chain link 1 to the locking link 3. The position of the other chain links 1 is then adjusted, specifically the chain links 1 at the remaining three points of the rectangle are folded 90 degrees, and finally adjusted to a rectangular shape. In this state, the steel ball at the end of the spring plunger 5 abuts against the corresponding slot 102, which can prevent the two adjacent chain links 1 from easily rotating relative to each other.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A region delineation device, characterized in that: include: There are multiple chain links, and two adjacent chain links are hinged to each other end to end; The locking joint is hinged at the end of the last chain link, and a mounting slot is provided at the tail end thereof. The width of the mounting slot is consistent with the thickness of the chain link, and the chain link can be placed in the mounting slot; The locking screw is threadedly connected to the locking link. When a chain link is placed in the installation groove, the locking link and the chain link can be fixed by tightening the locking screw.

2. The area delineation device according to claim 1, characterized in that: A first boss extends outward from the center of the head end of the chain link, and a slot is provided in the middle position of the tail end. In two adjacent chain links, the first boss of the rear link can be inserted into the slot of the front link. Through holes are provided on the first boss of the chain link and the tail end of the chain link. The connecting shaft is inserted into the through hole to realize the connection of the two adjacent chain links.

3. The area delineation device according to claim 2, characterized in that: A second boss extends outward from the center of the head end of the locking link. The second boss can be inserted into the slot of the adjacent chain link and connects the chain link to the locking link through the connecting shaft.

4. The area delineation device according to claim 3, characterized in that: Positioning components are provided at the hinges of two adjacent chain links and at the hinges of the locking link and the chain link.

5. The area delineation device according to claim 4, characterized in that: The positioning assembly includes a plurality of slots arranged on the surfaces of the first boss and the second boss, and the slots are evenly distributed around the central axis of the connecting shaft; it also includes a spring plunger installed at the end of the chain link and capable of extending into the slot. The steel ball at the end of the spring plunger can be placed in any slot to achieve the positioning of two adjacent chain links or a chain link and a locking link.

6. The area delineation device according to claim 4, characterized in that: The surface of the chain link is provided with scale lines.

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