Land area measuring instrument

Abstract

The utility model discloses a land area measuring instrument which comprises a box body and a box cover, a ground nail box is fixed at the top of the front end of the box body, a box cover is hinged to the front wall of the ground nail box, the box cover is a magnetic box cover, an electric guide rail is fixed in the middle of the front end of the box body, and a lifting sliding block is arranged on the outer side of the electric guide rail. A telescopic motor is fixed to the front end of the lifting sliding block, a knocking hammer is fixed to the output end of the telescopic motor, a ruler body is arranged on the inner side of the front wall of the box body, and the box cover is installed at the top end of the box body. Compared with an existing land area measuring device, the land area measuring instrument is provided with the ground nail storage mechanism and the ground nail knocking mechanism, a flexible rule can be conveniently fixed through ground nails, convenience of the device is improved, meanwhile, the device is provided with the winding mechanism capable of achieving uniform winding, winding is more uniform, and the measuring efficiency is improved. The flexible rule can be prevented from being scattered or occupying too much space due to the fact that the flexible rule is intensively wound in a certain area.

Description

Technical Field

[0001] The utility model relates to the technical field of area measurement, in particular to a land area measuring instrument. Background Art

[0002] The rational allocation of land resources is of great significance to ensuring the stable development of my country's social economy. Land surveying and mapping technology is the most widely used and most important technical means in land development and management. Giving full play to the important functions of land surveying and mapping will help promote the sustainable utilization and scientific development of land resources. In the process of land surveying and mapping, it is often necessary to use a land area measuring instrument to measure the side length or perimeter of a specified plot of land and calculate the land area.

[0003] The announcement number authorized by China is CN218723818U, and the patent is named "A patent for an area measuring device for land planning". The device includes a measuring instrument, a wire-retracting mechanism is arranged inside the measuring instrument, the upper front end of the measuring instrument is connected by a fixing mechanism, an auxiliary mechanism is arranged at the front of the measuring instrument, and the measuring instrument includes a casing, the top of the casing is connected to a top cover by a hinge, universal wheels are fixedly connected to both sides of the rear of the bottom end of the casing, feet are fixedly connected to both sides of the front of the bottom end of the casing, a pull rod is slidably connected to the middle of the rear end of the casing, and the upper front section of the casing is connected to the top cover by a fixing mechanism. The area measuring device for land planning described in the utility model uses an auxiliary mechanism to fix the tape measure at the turning point of the edge of the land and at every distance on the long side with a branch passing through a slip ring to avoid the pulling force when setting the tape measure affecting the previously set tape measure.

[0004] Although the above device can prevent the pulling force when setting the tape measure from affecting the tape measure previously set, there are still some problems when using the device:

[0005] 1. The device does not have a ground nail storage mechanism and a nailing mechanism. When using the device, it is necessary to find branches or fix its fixing ring at noon, which is troublesome to fix and has low firmness.

[0006] 2. The device does not have a uniform winding mechanism. It is directly wound up through the tape roller and the servo motor. When winding up, the tape measure will hit a place outside the tape roller, causing a waste of space, and the tape measure is very easy to fall off and become scattered.

[0007] In view of the above situation, technical innovation is carried out based on the existing land area measurement devices. Utility Model Content

[0008] The purpose of the utility model is to provide a land area measuring instrument to solve the problems raised in the above background technology.

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a land area measuring instrument, comprising a box body and a box cover, a ground nail box is fixed to the top of the front end of the box body, and the front wall of the ground nail box is hinged with a box cover, the box cover is a magnetic box cover, an electric guide rail is fixed to the middle of the front end of the box body, and a lifting slider is arranged on the outside of the electric guide rail, a telescopic motor is fixed to the front end of the lifting slider, and a knocking hammer is fixed to the output end of the telescopic motor, a ruler is arranged on the inner side of the front wall of the box body, the box cover is installed on the top of the box body, and the box cover and the box body are hinged.

[0010] Furthermore, a mounting frame is fixed to the inner bottom wall of the box body, and a winding motor is fixed to the top of the mounting frame.

[0011] Furthermore, the inner bottom wall of the mounting frame is rotatably connected to a winding roller, and a pulley 1 is fixed to the top of the winding roller.

[0012] Furthermore, a transmission belt is arranged outside the first pulley, and a second pulley is arranged at one end of the transmission belt.

[0013] Furthermore, a reciprocating screw is fixed to the bottom end of the second pulley, and a reciprocating slider is arranged outside the reciprocating screw.

[0014] Furthermore, a universal wheel is fixed to the rear of the bottom end of the box, and a telescopic pull rod is fixed to the rear end of the box.

[0015] Furthermore, a support assembly is fixed to the front bottom end of the box body, and the support assembly includes a support foot and a foot pad, and the foot pad is bonded to the bottom end of the support foot.

[0016] Compared with the prior art, the beneficial effects of the utility model are: the device is provided with a ground nail storage mechanism and a ground nail knocking mechanism, which can conveniently fix the tape measure through the ground nails, which is beneficial to improving the convenience of the device; at the same time, the device is provided with a uniformly wound winding mechanism, which is more uniformly wound, and can avoid the tape measure being scattered or occupying too much space due to the tape measure being concentrated in a certain area.

[0017] 1. The utility model is provided with a ground nail box, a box cover, an electric guide rail, a lifting slider, a telescopic motor, a knocking hammer and a ruler body. The ground nails are stored in the ground nail box, and a metal ring is fixed at the end of the ruler body. The inner hole diameter of the metal ring is slightly larger than the outer diameter of the rod of the ground nail. When the user needs to fix the ruler body, the ruler body can be pulled out and the metal ring is placed on the ground, and then the box cover is opened to take out the ground nail from the ground nail box, and the ground nail is passed through the metal ring and inserted into the ground, and the device is moved to align the knocking hammer with the ground nail, and then the knocking switch is turned on. When the knocking switch is turned on, the lifting slider will drive the telescopic motor to move downward slowly, and at the same time, the telescopic motor will drive the knocking hammer to repeatedly knock the ground nail until the ground nail is firmly nailed into the ground, thereby avoiding the need to carry extra nails and hammers and avoiding the need for manpower to knock nails. During the knocking process, the user can support the ground nail with his hands to prevent the ground nail from being knocked crooked by the knocking hammer. Through the above structure, the device can conveniently fix the soft ruler through the ground nail, which is conducive to improving the convenience of the device.

[0018] 2. The utility model is provided with a winding motor, a winding roller, a first pulley, a transmission belt, a second pulley, a reciprocating screw and a reciprocating slider. The winding motor drives the winding roller and the first pulley to rotate by rotating. When the winding roller rotates to rewind, the first pulley can drive the second pulley to rotate through the transmission belt. The second pulley and the reciprocating screw are both rotatably connected to the mounting frame. When the second pulley and the reciprocating screw rotate, the reciprocating slider moves back and forth up and down along the outside of the reciprocating screw, so that the ruler body can be evenly wound around the outer wall of the winding roller, avoiding the ruler body from being always wound around in one place, causing the roller body to swell and the ruler body to be scattered. Through the above structure, the device can rewind more evenly, and can avoid the flexible ruler being scattered or occupying too much space due to the flexible ruler being concentratedly wound around a certain area. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view structural schematic diagram of a land area measuring instrument of the utility model;

[0020] Figure 2 It is a side view cross-sectional structure schematic diagram of a land area measuring instrument of the utility model;

[0021] Figure 3 The utility model is a partial side view and cross-sectional enlarged structural schematic diagram of a mounting frame, a winding motor, a winding roller, a first pulley, a transmission belt, a second pulley, a reciprocating screw rod and a reciprocating slider of a land area measuring instrument.

[0022] In the figure: 1. box body; 2. ground nail box; 3. box cover; 4. electric guide rail; 5. lifting slider; 6. telescopic motor; 7. knock hammer; 8. ruler; 9. box cover; 10. mounting frame; 11. winding motor; 12. winding roller; 13. pulley 1; 14. transmission belt; 15. pulley 2; 16. reciprocating screw rod; 17. reciprocating slider; 18. universal wheel; 19. telescopic pull rod; 20. support assembly; 2001. support foot; 2002. foot pad. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-3 The principles and features of the present invention are described, and the examples given are only used to explain the present invention, and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0024] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0026] like Figure 1 and Figure 2As shown, a land area measuring instrument comprises a box body 1 and a box cover 9, a ground nail box 2 is fixed to the top of the front end of the box body 1, and a box cover 3 is hinged on the front wall of the ground nail box 2, and the box cover 3 is a magnetic box cover 3, an electric guide rail 4 is fixed to the middle of the front end of the box body 1, and a lifting slider 5 is arranged on the outer side of the electric guide rail 4, a telescopic motor 6 is fixed to the front end of the lifting slider 5, and a knocking hammer 7 is fixed to the output end of the telescopic motor 6, a ruler 8 is arranged on the inner side of the front wall of the box body 1, the box cover 9 is installed on the top of the box body 1, and the box cover 9 is hinged to the box body 1, the ground nails are stored in the ground nail box 2, and a metal ring is fixed to the end of the ruler 8, and the inner hole diameter of the metal ring is slightly larger than the outer diameter of the rod of the ground nail. When the user needs to fix the ruler 8, The ruler body 8 can be pulled out, and the metal ring can be placed on the ground. The box cover 3 can be opened to take out the ground nail from the ground nail box 2, and the ground nail can be passed through the metal ring and inserted into the ground. The device can be moved to align the hammer 7 with the ground nail, and then the knocking switch can be turned on. When the knocking switch is turned on, the lifting slider 5 can drive the telescopic motor 6 to move slowly downward, and at the same time, the telescopic motor 6 can drive the knocking hammer 7 to repeatedly knock the ground nail until the ground nail is firmly nailed into the ground, thereby avoiding the need to carry extra nails and hammers, and avoiding the need for manpower to knock nails. During the knocking process, the user can support the ground nail with his hands to prevent the ground nail from being knocked crooked by the hammer 7. Through the above structure, the device can conveniently fix the soft ruler through the ground nail, which is conducive to improving the convenience of the device.

[0027] like Figure 1 and Figure 3 As shown, a mounting frame 10 is fixed to the inner bottom wall of the box body 1, and a winding motor 11 is fixed to the top of the mounting frame 10, a winding roller 12 is rotatably connected to the inner bottom wall of the mounting frame 10, and a pulley 13 is fixed to the top of the winding roller 12, a transmission belt 14 is arranged outside the pulley 13, and a pulley 2 15 is arranged at one end of the transmission belt 14, a reciprocating screw rod 16 is fixed to the bottom end of the pulley 2 15, and a reciprocating slider 17 is arranged outside the reciprocating screw rod 16, a universal wheel 18 is fixed to the rear part of the bottom end of the box body 1, and a telescopic pull rod 19 is fixed to the rear end of the box body 1, a support assembly 20 is fixed to the front part of the bottom end of the box body 1, and the support assembly 20 includes a support foot 2001 and a foot pad 2002, and the support foot 2001 has a plurality of support legs. A foot pad 2002 is bonded to the bottom end, and the winding motor 11 drives the winding roller 12 and the pulley 1 13 to rotate by rotating. When the winding roller 12 rotates and rewinds, the pulley 1 13 can drive the pulley 2 15 to rotate through the transmission belt 14. The pulley 2 15 and the reciprocating screw rod 16 are both rotatably connected to the mounting frame 10. When the pulley 2 15 and the reciprocating screw rod 16 rotate, the reciprocating slider 17 will reciprocate up and down along the outside of the reciprocating screw rod 16, so that the ruler body 8 can be evenly wound around the outer wall of the winding roller 12, avoiding the ruler body 8 from being always wound in one place, causing the roller body to swell and the ruler body 8 to be scattered. Through the above structure, the device can be wound more evenly, and can avoid the tape measure being scattered or occupying too much space due to the tape measure being concentratedly wound in a certain area.

[0028] In summary: when using the land area measuring instrument, the user can first fix the end of the ruler body 8 on the ground. The ruler body 8 is a soft ruler, and the other end of the ruler body 8 is fixed to the winding roller 12. The user can slightly press down the upper rear end of the box body 1 through the telescopic pull rod 19, so that one end of the support assembly 20 is lifted and the universal wheel 18 touches the ground, and then pull the device through the telescopic pull rod 19 and the universal wheel 18. During the pulling process, the ruler body 8 is continuously pulled out. The user can measure the length and width data of the land plot according to the readings on the ruler body 8, and calculate the land area according to the data. The ground nail box 2 stores ground nails inside, and a metal ring is fixed at the end of the ruler body 8. The inner hole diameter of the metal ring is slightly larger than the outer diameter of the rod of the ground nail. When the user needs to fix the ruler body 8, the ruler body 8 can be pulled out and the metal ring can be placed on the ground, and then the box cover 3 can be opened to take out the ground nail from the ground nail box 2, and the ground nail is passed through the metal ring and inserted into the ground, and the device is moved to the knocking hammer 7 to align with the ground nail, and then the knocking switch is turned on. When the knocking switch is turned on, the lifting slider 5 will drive the telescopic motor 6 to move slowly downward, and at the same time, the telescopic motor 6 will drive the knocking hammer 7 to repeatedly knock the ground nail until the ground nail is firmly nailed into the ground, thereby avoiding the need to carry extra nails and hammers, and avoiding the need for manpower to knock nails. During the knocking process, the user can support the ground nail with his hands to prevent the ground nail from being knocked crooked by the knocking hammer 7. The winding motor 11 drives the winding roller 12 and the pulley 1 13 to rotate by rotating. When the winding roller 12 rotates and rewinds, the pulley 1 13 can drive the pulley 2 15 to rotate through the transmission belt 14. The pulley 2 15 and the reciprocating screw rod 16 are both rotatably connected to the mounting frame 10. When the pulley 2 15 and the reciprocating screw rod 16 rotate, the reciprocating slider 17 will reciprocate up and down along the outside of the reciprocating screw rod 16, so that the ruler 8 can be evenly wound around the outer wall of the winding roller 12, avoiding the ruler 8 from always being wound in one place, resulting in the expansion of the roller body and the scattered ruler 8. This is the working principle of the land area measuring instrument.

[0029] The above are only preferred embodiments of the utility model, and do not impose any form of limitation on the utility model. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings and above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A land area measuring instrument, comprising a box body (1) and a box cover (9), characterized in that: A floor nail box (2) is fixed to the top of the front end of the box body (1), and a box cover (3) is hingedly connected to the front wall of the floor nail box (2), and the box cover (3) is a magnetic box cover (3). An electric guide rail (4) is fixed to the middle of the front end of the box body (1), and a lifting slider (5) is arranged on the outer side of the electric guide rail (4). A telescopic motor (6) is fixed to the front end of the lifting slider (5), and a percussion hammer (7) is fixed to the output end of the telescopic motor (6). A ruler (8) is arranged on the inner side of the front wall of the box body (1). The box cover (9) is installed on the top end of the box body (1), and the box cover (9) is hinged to the box body (1).

2. A land area measuring instrument according to claim 1, characterized in that: A mounting frame (10) is fixed to the inner bottom wall of the box body (1), and a winding motor (11) is fixed to the top end of the mounting frame (10).

3. A land area measuring instrument according to claim 2, characterized in that: The inner bottom wall of the mounting frame (10) is rotatably connected to a winding roller (12), and a pulley (13) is fixed to the top of the winding roller (12).

4. A land area measuring instrument according to claim 3, characterized in that: A transmission belt (14) is arranged outside the first pulley (13), and a second pulley (15) is arranged at one end of the transmission belt (14).

5. A land area measuring instrument according to claim 4, characterized in that: A reciprocating screw rod (16) is fixed to the bottom end of the second pulley (15), and a reciprocating slider (17) is arranged outside the reciprocating screw rod (16).

6. A land area measuring instrument according to claim 1, characterized in that: A universal wheel (18) is fixed to the rear portion of the bottom end of the box body (1), and a telescopic pull rod (19) is fixed to the rear end of the box body (1).

7. A land area measuring instrument according to claim 1, characterized in that: A support assembly (20) is fixed to the front bottom end of the box body (1), and the support assembly (20) comprises a support foot (2001) and a foot pad (2002), and the foot pad (2002) is bonded to the bottom end of the support foot (2001).

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