Land area measuring device

Abstract

The invention relates to the technical field of land area measurement, and particularly discloses a land area measuring device, when the device is used, the device is supported through four groups of stabilizing modules, and when a lifting module is used for lifting a mounting table and a land measuring instrument, a telescopic rod slides out of a round hole, so that a roller is always located on the ground, and the device is convenient to use. When the land measuring instrument stops ascending, the electromagnet is electrified, has magnetism and is adsorbed with the magnetic coating, so that the electromagnet is fixed, the telescopic rod does not slide any more, self-locking of the telescopic rod is completed, and when the land measuring instrument descends, the mounting rod descends and cooperates with the rolling effect of the rolling wheels on the ground, the telescopic rod gradually shrinks into the round hole, and the ground measuring instrument is fixed. And when the land measuring instrument stops descending, the electromagnet is adsorbed with the magnetic coating, so that the telescopic rod does not slide any more, and the telescopic rod is locked, so that the stabilizing module is automatically adjusted along with ascending and descending of the land measuring instrument and is automatically locked after ascending and descending are completed, and the use convenience of the device is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of land area measurement, and particularly relates to a land area measurement device. Background Art

[0002] When conducting an investigation on the current situation of urban and rural land use, a land area measuring instrument is required to measure the land area, so a land area measurement device is needed.

[0003] A land area measurement device for land resource investigation is disclosed in the Chinese invention patent with the authorization announcement number CN115681753B. It is recorded in the above patent that "when the height of the land area measurement device is adjusted, a suitable rotating sleeve and the positioning rod slidably connected to the rotating sleeve are selected according to the height lifted by the land area measurement device. The inserts at the bottom of the sliding blocks on the rotating sleeve and the positioning rod of this specification on the four sides are taken out, the selected rotating sleeve is rotated outward, and after rotating to a suitable angle, the positioning rod sleeved in the inner cavity of the rotating sleeve is slid downward to insert the pointed cone at the bottom of the positioning rod into the ground. When it is necessary to adjust the height of the land area measurement device, different specifications of rotating sleeves and positioning rods are selected according to the adjusted height. This structure can, during use, by replacing different specifications of rotating sleeves and positioning rods, make the selected rotating sleeve and positioning rod cooperate with the lifting of the height of the land area measurement device to improve the fixing effect of the land area measurement device at different heights". Among them, for the change in height, the adjustment of the support structures such as the rotating sleeve and the positioning rod requires manual adjustment by personnel, and every time the height changes, different rotating sleeves and positioning rods need to be adjusted and replaced, which cannot improve the automation degree of the support structure, that is, it cannot automatically change the support range of the support structure while the height changes to adapt to the change in the center of gravity at different heights. Summary of the Invention

[0004] The purpose of the present invention is to provide a land area measurement device to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: A land area measuring device, comprising a mounting table, a land measuring instrument connected to the top of the mounting table, inclined planes are provided at the bottoms of all four sides of the mounting table, and a stabilizing module is provided on the inclined planes. The stabilizing module includes a mounting hole, a mounting rod, a circular hole and a telescopic rod. The mounting hole is opened on the mounting table, and the mounting hole is in the middle of the inclined plane. One end of the mounting rod is arranged in the mounting hole, and the outer wall of the mounting rod is threadedly connected to the mounting hole through external threads. The circular hole is opened in the mounting rod, the telescopic rod is arranged in the circular hole, and the end of the telescopic rod away from the mounting table sequentially penetrates through the circular hole and the mounting rod. The outer wall of the telescopic rod is slidably matched with the mounting rod. A lifting module is provided at the bottom of the mounting table. The lifting module includes a bottom plate, a driving motor, a lifting column, a threaded hole and a driving screw rod. The bottom plate is arranged below the mounting table, the driving motor is connected to the middle of the top of the bottom plate through a positioning bolt, the lifting column is connected to the middle of the bottom of the mounting table, the threaded hole is opened in the middle of the bottom of the lifting column, the bottom end of the driving screw rod is connected to the output end of the top of the driving motor, the top end of the driving screw rod is arranged in the threaded hole, and the outer wall of the driving screw rod is threadedly connected to the threaded hole through external threads.

[0006] Preferably, the stabilizing module further includes an electromagnet and a magnetic coating. The electromagnet is connected to the end of the telescopic rod close to the mounting table. The magnetic coating is arranged in the circular hole and is coated on the inner wall of the mounting rod. The electromagnet and the magnetic coating are slidably matched. When the electromagnet is energized, the electromagnet has magnetism, and the electromagnet and the magnetic coating are magnetically attracted to each other, so as to fix the electromagnet and make the telescopic rod stop sliding, completing the self-locking of the telescopic rod.

[0007] Preferably, the stabilizing module further includes a connecting block, a positioning rod and rollers. The connecting block is connected to the end of the telescopic rod away from the mounting table. The positioning rod is arranged in the connecting block, and both ends of the positioning rod penetrate through the connecting block. The rollers are symmetrically connected to both ends of the positioning rod. Through the arrangement of the rollers, the telescopic effect of the telescopic rod in the circular hole is ensured, and the movement of the device is facilitated.

[0008] Preferably, the lifting module further includes an extension plate member and universal wheels. The extension plate member includes a bottom ring and a top ring. The inner wall of the bottom ring is connected to the bottom plate, and the bottom surface of the bottom ring is flush with the bottom plate. The top ring is connected to the top of the bottom ring. The universal wheels are circumferentially arranged and connected to the bottom end of the top ring, and there is a gap between the universal wheels and the bottom ring to ensure the movement effect of the device.

[0009] Preferably, the lifting module further includes an arc-shaped strengthening plate member and vertical notches. The arc-shaped strengthening plate members are circumferentially arranged and connected to the top of the top ring. The vertical notches are circumferentially arranged and opened on the outer wall of the lifting column. The end of the arc-shaped strengthening plate member away from the top ring is arranged in the vertical notch, and the arc-shaped strengthening plate member and the lifting column are slidably matched. As the lifting column rises and falls, the end of the arc-shaped strengthening plate member away from the top ring slides in the vertical notch, ensuring the lifting effect of the lifting column while preventing the lifting column from rotating as the driving screw rod rotates.

[0010] Preferably, the lifting module further includes a limiting ring which is sleeved and connected to the outer wall of the lifting column, and the bottom surface of the limiting ring is flush with the bottom surface of the lifting column to limit the arc-shaped reinforcing plate and prevent the end of the arc-shaped reinforcing plate away from the top ring from disengaging from the vertical notch.

[0011] Preferably, recovery plates are connected to the middle top of the four sides of the installation platform, and the top surface of the recovery plate is flush with the top surface of the installation platform to connect and fix the installation rod and the recovery plate, ensuring the convenience of subsequent movement of the device.

[0012] Preferably, a recovery hole is provided at the bottom of the recovery plate, and the inner wall of the recovery hole can be threadedly connected to the end of the installation rod located in the installation hole by threads. The top end of the installation rod is arranged at the bottom of the recovery hole, and the installation rod is rotated reversely to gradually extend the top end of the installation rod into the recovery hole.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: When using the device of the present invention, the device is supported by four sets of stabilizing modules. When using the lifting module to lift the installation platform and the land measuring instrument, the telescopic rod slides out of the round hole, so that the rollers are always on the ground. When the land measuring instrument stops rising, the electromagnet is energized and has magnetism, and adsorbs with the magnetic coating, thereby fixing the electromagnet, so that the telescopic rod no longer slides, completing the self-locking of the telescopic rod. When lowering the land measuring instrument, the installation rod descends, and in cooperation with the rolling effect of the rollers on the ground, the telescopic rod gradually contracts into the round hole. When the land measuring instrument stops descending, the electromagnet is energized and has magnetism, and adsorbs with the magnetic coating, thereby fixing the electromagnet, so that the telescopic rod no longer slides, completing the self-locking of the telescopic rod. Thus, the stabilizing module automatically adjusts with the lifting and lowering of the land measuring instrument and automatically locks after the lifting and lowering of the land measuring instrument are completed, improving the convenience of using the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of a land area measuring device.

[0015] Figure 2 It is a schematic diagram of the bottom structure of a land area measuring device.

[0016] Figure 3 It is a schematic diagram of the installation hole of a land area measuring device.

[0017] Figure 4 It is a schematic diagram of the driving lead screw of a land area measuring device.

[0018] Figure 5 It is a schematic cross-sectional view of the installation rod of a land area measuring device.

[0019] In the figure: 1, mounting table; 2, land surveying instrument; 3, inclined plane; 4, stabilizing module; 41, mounting hole; 42, mounting rod; 43, round hole; 44, telescopic rod; 45, electromagnet; 46, magnetic coating; 47, connecting block; 48, positioning rod; 49, roller; 5, lifting module; 51, bottom plate; 52, driving motor; 53, lifting column; 54, threaded hole; 55, driving lead screw; 56, extension plate member; 561, bottom ring; 562, top ring; 57, universal wheel; 58, arc-shaped reinforcing plate member; 59, vertical notch; 510, limiting ring; 6, recovery plate member; 7, recovery hole. Detailed implementation manner

[0020] Embodiment Please refer to Figures 1 - 5 As shown, a land area measuring device includes a mounting table 1. A land surveying instrument 2 is connected to the top of the mounting table 1. Inclined planes 3 are provided at the bottoms of all four sides of the mounting table 1. A stabilizing module 4 is provided on the inclined planes 3. The stabilizing module 4 includes a mounting hole 41, a mounting rod 42, a round hole 43 and a telescopic rod 44. The mounting hole 41 is opened on the mounting table 1, and the mounting hole 41 is located in the middle of the inclined plane 3. One end of the mounting rod 42 is arranged in the mounting hole 41, and the outer wall of the mounting rod 42 is threadedly connected to the mounting hole 41 through an external thread. The round hole 43 is opened in the mounting rod 42, and the telescopic rod 44 is arranged in the round hole 43. The end of the telescopic rod 44 away from the mounting table 1 sequentially penetrates through the round hole 43 and the mounting rod 42. The outer wall of the telescopic rod 44 is in sliding fit with the mounting rod 42. A lifting module 5 is provided at the bottom of the mounting table 1. The lifting module 5 includes a bottom plate 51, a driving motor 52, a lifting column 53, a threaded hole 54 and a driving lead screw 55. The bottom plate 51 is arranged below the mounting table 1. The driving motor 52 is connected to the middle of the top of the bottom plate 51 through a positioning bolt. The lifting column 53 is connected to the middle of the bottom of the mounting table 1. The threaded hole 54 is opened in the middle of the bottom of the lifting column 53. The bottom end of the driving lead screw 55 is connected to the output end of the top of the driving motor 52. The top end of the driving lead screw 55 is arranged in the threaded hole 54, and the outer wall of the driving lead screw 55 is threadedly connected to the threaded hole 54 through an external thread.

[0021] Refer to Figure 5 As shown, the stabilizing module 4 further includes an electromagnet 45 and a magnetic coating 46. The electromagnet 45 is connected to the end of the telescopic rod 44 close to the mounting table 1. The magnetic coating 46 is arranged in the round hole 43 and is coated on the inner wall of the mounting rod 42. The electromagnet 45 and the magnetic coating 46 are in sliding fit. When the electromagnet 45 is energized, the electromagnet 45 has magnetism, and the electromagnet 45 and the magnetic coating 46 are magnetically attracted to each other, thereby fixing the electromagnet 45 and preventing the telescopic rod 44 from sliding, and completing the self-locking of the telescopic rod 44.

[0022] Refer to Figures 1 - 4As shown, the stabilizing module 4 further includes a connecting block 47, a positioning rod 48 and a roller 49. The connecting block 47 is connected to the end of the telescopic rod 44 away from the mounting table 1. The positioning rod 48 is arranged in the connecting block 47, and both ends of the positioning rod 48 penetrate through the connecting block 47. The rollers 49 are symmetrically connected to both ends of the positioning rod 48. Through the arrangement of the rollers 49, the telescopic effect of the telescopic rod 44 in the round hole 43 is ensured, and the movement of the device is facilitated.

[0023] Reference Figures 1 - 3 As shown, the lifting module 5 further includes an extension plate member 56 and a universal wheel 57. The extension plate member 56 includes a bottom ring 561 and a top ring 562. The inner wall of the bottom ring 561 is connected to the bottom plate 51, and the bottom surface of the bottom ring 561 is flush with the bottom plate 51. The top ring 562 is connected to the top of the bottom ring 561. The universal wheels 57 are circumferentially and arrayedly connected to the bottom end of the top ring 562, and there is a gap between the universal wheels 57 and the bottom ring 561 to ensure the movement effect of the device.

[0024] Reference Figures 1 - 4 As shown, the lifting module 5 further includes an arc-shaped strengthening plate member 58 and a vertical notch 59. The arc-shaped strengthening plate members 58 are circumferentially and arrayedly connected to the top of the top ring 562. The vertical notches 59 are circumferentially and arrayedly opened on the outer wall of the lifting column 53. One end of the arc-shaped strengthening plate member 58 away from the top ring 562 is arranged in the vertical notch 59, and the arc-shaped strengthening plate member 58 is in sliding fit with the lifting column 53. As the lifting column 53 rises and falls, one end of the arc-shaped strengthening plate member 58 away from the top ring 562 slides in the vertical notch 59. While ensuring the lifting effect of the lifting column 53, the lifting column 53 is prevented from rotating as the driving lead screw 55 rotates.

[0025] Reference Figure 1 、 Figure 3 and Figure 4 As shown, the lifting module 5 further includes a limiting ring 510. The limiting ring 510 is sleeved and connected to the outer wall of the lifting column 53, and the bottom surface of the limiting ring 510 is flush with the bottom surface of the lifting column 53 to limit the arc-shaped strengthening plate member 58 and prevent one end of the arc-shaped strengthening plate member 58 away from the top ring 562 from disengaging from the vertical notch 59.

[0026] Reference Figures 1 - 4 As shown, recovery plate members 6 are connected to the middle top of the four sides of the mounting table 1, and the top surface of the recovery plate members 6 is flush with the top surface of the mounting table 1. The mounting rod 42 and the recovery plate members 6 are connected and fixed to ensure the convenience of subsequent movement of the device.

[0027] Reference Figures 2 - 4 As shown, a recovery hole 7 is opened at the bottom of the recovery plate member 6, and the inner wall of the recovery hole 7 can be threadedly connected to one end of the mounting rod 42 in the mounting hole 41 through threads. The top end of the mounting rod 42 is arranged at the bottom of the recovery hole 7, and the mounting rod 42 is rotated in the reverse direction so that the top end of the mounting rod 42 gradually extends into the recovery hole 7.

[0028] Working principle: When using this device, step one: Separate the mounting rod 42 from the recycling plate 6. Since the outer wall of the top end of the mounting rod 42 is threadedly connected to the recycling hole 7 through external threads, rotate the mounting rod 42 so that the top end of the mounting rod 42 disengages from the recycling hole 7. Since the outer wall of the top end of the mounting rod 42 is threadedly connected to the mounting hole 41 through external threads, align the top end of the mounting rod 42 with the mounting hole 41 and rotate the mounting rod 42. The mounting rod 42 will gradually extend into the mounting hole 41, and through the mounting hole 41, connect the mounting rod 42 to the mounting table 1, thus completing the connection and installation between the stabilizing device and the mounting table 1; Step two: When it is necessary to lift the land surveyor 2, turn on the drive motor 52. The drive motor 52 is turned on and sends a signal to the peripheral terminal. The peripheral terminal receives the signal and controls the electromagnet 45 to stop being powered, completing the unlocking between the telescopic rod 44 and the mounting rod 42, and driving the drive screw rod 55 to rotate. Since the outer wall of the drive screw rod 55 is threadedly connected to the threaded hole 54 through external threads, the lifting column 53 rises as the drive screw rod 55 rotates. Under the gravitational action of the electromagnet 45, the telescopic rod 44, the positioning rod 48, the connecting block 47 and the roller 49, the telescopic rod 44 continuously slides out of the circular hole 43, and the roller 49 always remains on the ground. When the land surveyor 2 rises to the height required by the surveyor, the operator turns off the drive motor 52. The drive motor 52 is turned off and sends a signal to the peripheral terminal. The peripheral terminal receives the signal and controls the electromagnet 45 to be powered on, making the electromagnet 45 magnetic. The electromagnet 45 is magnetically connected to the magnetic coating 46, thereby fixing the electromagnet 45 and preventing the telescopic rod 44 from sliding, completing the self-locking of the telescopic rod 44 and ensuring the support stability of the stabilizing module 4 for the mounting table 1; Step 3: When it is necessary to lower the land surveying instrument 2, turn on the driving motor 52. After the driving motor 52 is turned on, the driving motor 52 transmits a signal to the peripheral terminal. The peripheral terminal receives the signal and controls the electromagnet 45 to stop being powered on, completing the unlocking between the telescopic rod 44 and the mounting rod 42. The driving motor 52 drives the driving lead screw 55 to rotate in the reverse direction. Since the outer wall of the driving lead screw 55 is threadedly connected to the threaded hole 54 through an external thread, the lifting column 53 descends as the driving lead screw 55 rotates in the reverse direction. Since the roller 49 can roll on the ground, the mounting rod 42 descends along with the mounting table 1, and the telescopic rod 44 gradually contracts into the circular hole 43. After the land surveying instrument 2 descends to the height required by the personnel, the personnel turn off the driving motor 52. After the driving motor 52 is turned off, the driving motor 52 transmits a signal to the peripheral terminal. The peripheral terminal receives the signal and controls the electromagnet 45 to be powered on, making the electromagnet 45 magnetic. The electromagnet 45 is magnetically connected to the magnetic coating 46, thereby fixing the electromagnet 45 and preventing the telescopic rod 44 from sliding, completing the self-locking of the telescopic rod 44 and ensuring the support stability of the stable module 4 for the mounting table 1; Step 4: After using the land surveying instrument 2, rotate the mounting rod 42 in the reverse direction so that the top end of the mounting rod 42 disengages from the mounting hole 41, thereby separating the mounting rod 42 from the mounting table 1. Place the top end of the mounting rod 42 at the bottom of the recovery hole 7 and rotate the mounting rod 42 in the reverse direction so that the top end of the mounting rod 42 gradually extends into the recovery hole 7, thereby connecting and fixing the mounting rod 42 to the recovery plate member 6 to ensure the convenience of subsequent movement of the device.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A land area measuring device, comprising an installation platform (1), characterized in that, At the top of the mounting table (1), a land surveying instrument (2) is connected. At the bottom of the periphery of the mounting table (1), inclined planes (3) are provided. On the inclined planes (3), a stabilizing module (4) is provided. The stabilizing module (4) includes a mounting hole (41), a mounting rod (42), a circular hole (43) and a telescopic rod (44). The mounting hole (41) is opened on the mounting table (1), and the mounting hole (41) is located in the middle of the inclined plane (3). One end of the mounting rod (42) is arranged in the mounting hole (41), and the outer wall of the mounting rod (42) is threadedly connected with the mounting hole (41) through external threads. The circular hole (43) is opened in the mounting rod (42), and the telescopic rod (44) is arranged in the circular hole (43). The end of the telescopic rod (44) far from the mounting table (1) sequentially penetrates through the circular hole (43) and the mounting rod (42). The outer wall of the telescopic rod (44) is in sliding fit with the mounting rod (42). At the bottom of the mounting table (1), a lifting module (5) is provided. The lifting module (5) includes a bottom plate (51), a driving motor (52), a lifting column (53), a threaded hole (54) and a driving lead screw (55). The bottom plate (51) is arranged below the mounting table (1), the driving motor (52) is connected to the middle of the top of the bottom plate (51) through a positioning bolt, the lifting column (53) is connected to the middle of the bottom of the mounting table (1), the threaded hole (54) is opened in the middle of the bottom of the lifting column (53), the bottom end of the driving lead screw (55) is connected to the output end of the top of the driving motor (52), the top end of the driving lead screw (55) is arranged in the threaded hole (54), and the outer wall of the driving lead screw (55) is threadedly connected with the threaded hole (54) through external threads.

2. The land area measuring device according to claim 1, characterized in that: The stabilizing module (4) further includes an electromagnet (45) and a magnetic coating (46). The electromagnet (45) is connected to the end of the telescopic rod (44) close to the mounting table (1). The magnetic coating (46) is arranged in the circular hole (43), and the magnetic coating (46) is coated on the inner wall of the mounting rod (42). The electromagnet (45) is in sliding fit with the magnetic coating (46).

3. The land area measuring device according to claim 1, characterized in that: The stabilizing module (4) further includes a connecting block (47), a positioning rod (48) and a roller (49). The connecting block (47) is connected to the end of the telescopic rod (44) far from the mounting table (1). The positioning rod (48) is arranged in the connecting block (47), and both ends of the positioning rod (48) penetrate through the connecting block (47). The rollers (49) are symmetrically connected to both ends of the positioning rod (48).

4. The land area measuring device according to claim 1, characterized in that: The lifting module (5) further includes an extension plate member (56) and universal wheels (57). The extension plate member (56) includes a bottom ring (561) and a top ring (562). The inner wall of the bottom ring (561) is connected to the bottom plate (51), and the bottom surface of the bottom ring (561) is flush with the bottom plate (51). The top ring (562) is connected to the top of the bottom ring (561). The universal wheels (57) are circumferentially arranged and connected to the bottom end of the top ring (562), and there is a gap between the universal wheels (57) and the bottom ring (561).

5. The land area measuring device according to claim 4, characterized in that: The lifting module (5) further includes an arc-shaped reinforcement plate member (58) and a vertical notch (59). The arc-shaped reinforcement plate members (58) are circumferentially and arrayedly connected to the top of the top ring (562). The vertical notches (59) are circumferentially and arrayedly formed in the outer wall of the lifting column (53). One end of the arc-shaped reinforcement plate member (58) away from the top ring (562) is arranged in the vertical notch (59), and the arc-shaped reinforcement plate member (58) is slidably matched with the lifting column (53).

6. The land area measuring device according to claim 5, characterized in that: The lifting module (5) further includes a limiting ring (510). The limiting ring (510) is sleeved and connected to the outer wall of the lifting column (53), and the bottom surface of the limiting ring (510) is flush with the bottom surface of the lifting column (53).

7. The land area measuring device according to claim 1, characterized in that: Recovery plate members (6) are connected to the middle and top of the periphery of the installation table (1), and the top surface of the recovery plate member (6) is flush with the top surface of the installation table (1).

8. The land area measuring device according to claim 7, characterized in that: Recovery holes (7) are formed in the bottom of the recovery plate member (6), and the inner wall of the recovery hole (7) can be threadedly connected to one end of the installation rod (42) located in the installation hole (41) through threads.

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