Measuring device for rural planning and design

Abstract

The invention is applicable to the technical field of measuring devices, and provides a measuring device for rural planning and design, which comprises an upper shell, a lower shell, a winding disc, a tape and a fixing mechanism, and further comprises an angle measuring mechanism and a connecting mechanism, the tape is in contact with the angle measuring mechanism, and the connecting mechanism comprises a connecting assembly and a clamping assembly. One side of the connecting assembly is fixedly connected with the tape, the other side of the connecting assembly is provided with a clamping groove matched with the clamping assembly, and the tape is matched with the connecting mechanism, the angle measuring mechanism and the fixing mechanism, so that not only can the perimeter of a measured object be calculated, but also the area and the outline of the measured object can be accurately surveyed and mapped; measurement of the perimeter and the area of a measured object and drawing of the outline of the measured object can be completed through single-person operation, then integration of multiple functions of the measuring device is achieved, errors possibly caused by multi-person cooperative measurement are avoided, and accumulative errors generated during traditional sectional type measurement are effectively eliminated.

Description

Technical Field

[0001] The present invention belongs to the technical field of measuring devices, and particularly relates to a measuring device for rural planning and design. Background Art

[0002] The existing measuring device (Chinese Patent: CN117870494A) includes a plurality of bases. The upper side wall of the base is fixedly connected with a perpendicularity adjusting mechanism. The upper end of the perpendicularity adjusting mechanism is fixedly connected with a connecting plate. The left side wall of the connecting plate is fixedly connected with a tensioning mechanism through a height adjusting mechanism. A tape measure is arranged above the right side of the base. When measuring some uneven or weedy land, it can be measured above the land, so that the tape measure does not contact the ground, ensuring the measurement accuracy of the tape measure. And when using the tape measure to measure the land, the tape measure can always be kept in a taut state, ensuring the accuracy of the measurement result, and also avoiding the problem that the tape measure is stretched too much due to elasticity, causing the tape measure to extend and affecting the subsequent measurement accuracy.

[0003] The existing device completes the measurement of the land through the tape measure. However, during the measurement of the land perimeter, multiple people need to cooperate and measure cumulatively in stages. This not only takes time and effort, consumes a large amount of labor costs, but also the accumulated measurement data is prone to errors, and the accuracy of the measurement data cannot be guaranteed. In addition, the existing device has a single function and can only complete the measurement of the perimeter, and cannot accurately obtain the area and contour of the land.

[0004] Therefore, in view of the above situation, there is an urgent need to develop a measuring device for rural planning and design to overcome the deficiencies in current practical applications. Summary of the Invention

[0005] Aiming at the deficiencies of the existing technology, the purpose of the embodiment of the present invention is to provide a measuring device for rural planning and design to solve the problems in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: A measuring device for rural planning and design includes an upper shell and a lower shell. An upper shell and a lower shell form a shell unit. A winding disc is fixedly installed inside both the upper shell and the lower shell. A roll of tape measure is installed inside the winding disc. Strip-shaped holes communicating with each other are opened on the left sides of both the upper shell and the lower shell. Sliding grooves and mounting frames for installing a fixing mechanism are respectively opened on the upper shell and the lower shell. The device further includes: An angle measuring mechanism. The two ends of the angle measuring mechanism are respectively installed outside the upper shell and the lower shell. And one end of the angle measuring mechanism is parallel to and in the same plane as the strip-shaped hole. One end of the tape measure penetrates through the strip-shaped hole and contacts one end of the angle measuring mechanism; Connecting mechanism, the connecting mechanism includes a connecting component and a clamping component, the connecting component is located on the side of the angle measuring mechanism away from the upper housing and the lower housing, one side of the connecting component is fixedly connected to the tape measure, and a clamping groove matching with the clamping component is formed on the other side of the connecting component, and the clamping component is fixedly installed on the outer walls of the right sides of the upper housing and the lower housing; The fixing mechanism distributes a plurality of housing units at designated measurement points according to the shape specifications of the measured object, the connecting mechanism connects the tape measure with its adjacent housing unit as a whole to form a closed-loop measurement system, and the angle measuring mechanism measures the deflection data of the horizontal angle of the tape measure.

[0007] As a further technical solution of the present invention, the connecting component includes: A sleeve arranged outside the housing unit, the sleeve adopts a cylindrical structure with one end open and the other end closed, a control release component that is intermittently matched with the clamping component is slidably installed on the inner wall of the sleeve, and a clamping groove matching with the clamping component is formed on one side of the sleeve; A left clamping plate fixed to one side of the sleeve; A right clamping plate movably arranged on the other side of the sleeve, the right clamping plate cooperates with the left clamping plate to complete the fixation of the tape measure.

[0008] As a further technical solution of the present invention, the clamping component includes: Two mounting blocks respectively fixed on the outer walls of one side of the upper housing and the lower housing, and mounting shafts are fixed on the end faces of the two mounting blocks close to each other; Two clamping blocks vertically symmetrically distributed between the two mounting blocks, the upper and lower ends of the two clamping blocks are respectively rotatably connected to the mounting shafts on the two mounting blocks, and one side of the two clamping blocks is intermittently matched with the clamping groove and the control release component respectively; A first spring installed between the two clamping blocks.

[0009] As a further technical solution of the present invention, the control release component includes: A sector column with one end slidably installed in the sleeve, the other end of the sector column is located outside the sleeve, a tapered hole is longitudinally formed in the middle of the sector column, and the aperture of the tapered hole gradually decreases from bottom to top; A second spring installed in the tapered hole and connected to the inner wall of the sleeve.

[0010] As a further technical solution of the present invention, the angle measuring mechanism includes: Z-shaped connecting plates parallelly distributed outside the upper housing and the lower housing; Orientation wheels vertically symmetrically installed inside the upper housing and the lower housing, the two orientation wheels and the Z-shaped connecting plates are all installed on the upper housing and the lower housing through the same connecting bolt; An angle measurement component arranged outside the upper shell and the lower shell. The angle measurement components are both rotatably connected to two Z-shaped connecting plates. The central points of the angle measurement component and the two directional wheels are coplanar with the strip-shaped hole, and the angle measurement component is in contact with the tape measure.

[0011] As a further technical solution of the present invention, the angle measurement component includes: A rotating disk rotatably installed on the Z-shaped connecting plate; A pointer fixed on one side of the rotating disk; A scale disk fixed on the Z-shaped connecting plate and concentric with the rotating disk. The scale disk cooperates with the pointer; A clamping plate fixed on the other side of the rotating disk; Arc-shaped clamping plates symmetrically distributed between the two rotating disks and both connected to the two clamping plates. The tape measure is located between the two arc-shaped clamping plates, and the central points of the two arc-shaped clamping plates are coplanar with the strip-shaped hole.

[0012] As a further technical solution of the present invention, the fixing mechanism includes: A rotating component with one end respectively installed inside the upper shell and the lower shell. One end of the rotating component extends to the outside of the upper shell; A bidirectional screw rod with both ends rotatably installed in the installation frames arranged on both sides of the upper shell and the lower shell. The bidirectional screw rod is connected to the other end of the rotating component; Fixing components symmetrically arranged between the upper shell and the lower shell. One ends of the two fixing components are respectively threadedly connected to both ends of the bidirectional screw rod, and the other ends of the two fixing components both extend to the outside of the upper shell and the lower shell.

[0013] As a further technical solution of the present invention, the rotating component includes: A rotating shaft with one end rotatably installed inside the upper shell and the lower shell. The other end of the rotating shaft extends to the outside of the upper shell; A worm fixed on one end of the rotating shaft; A worm gear fixed on the bidirectional screw rod. The worm gear meshes with the worm; A rotating rod fixed on the other end of the rotating shaft.

[0014] As a further technical solution of the present invention, the rotating component includes: A rotating shaft with one end rotatably installed inside the upper shell and the lower shell. The other end of the rotating shaft extends to the outside of the upper shell; A worm fixed on one end of the rotating shaft; A worm gear fixed on the bidirectional screw rod. The worm gear meshes with the worm; A rotating rod fixed on the other end of the rotating shaft.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The fixing mechanism can separately fix multiple measuring devices at designated measuring points, enabling each housing unit to independently adapt to different curvature surfaces and adjust the fitting angle according to the shape characteristics of the object to be measured, laying a prerequisite for the measurement work and ensuring the accuracy of the measurement data; Multiple upper housings, lower housings and the measuring tapes inside them can enclose a closed figure according to the shape specifications of the object to be measured, thus forming a closed-loop measurement system, and obtaining the stretching length of the measuring tape between adjacent housing units. Through the perimeter calculation formula, the perimeter data of the object to be measured can be quickly obtained. At the same time, by combining with the angle measuring mechanism, the rotation angle of the measuring tape can also be measured, that is, the included angle between adjacent upper and lower housings can be measured, and combined with the multiple side length data of the object to be measured obtained previously. In this way, not only the perimeter size of the object to be measured can be calculated, but also the area size and the external contour of the object to be measured can be accurately mapped. It realizes the measurement of the perimeter and area of the object to be measured and the drawing of the external contour of the object to be measured by a single person's operation, and then realizes the integration of the multifunction of the measuring device, avoids the errors that may be brought by multi-person cooperative measurement, greatly improves the measurement efficiency, reduces the cost of manual measurement at the same time, and through the closed-loop measurement system composed of multiple measuring devices, the cumulative error generated during traditional segmented measurement can be effectively eliminated, ensuring the accuracy and reliability of the overall measurement result.

[0016] To more clearly elaborate the structural features and functions of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the first perspective of the measuring device for rural planning and design provided by the embodiment of the present invention.

[0018] Figure 2 It is a schematic structural diagram of the second perspective of the measuring device for rural planning and design provided by the embodiment of the present invention.

[0019] Figure 3 It is a schematic cross-sectional view of the first perspective of the measuring device for rural planning and design provided by the embodiment of the present invention.

[0020] Figure 4 It is a schematic cross-sectional view of the second perspective of the measuring device for rural planning and design provided by the embodiment of the present invention.

[0021] Figure 5 For Figure 2 It is a schematic diagram of the internal structure of the upper housing and the lower housing.

[0022] Figure 6 For Figure 4Enlarged view of the structures of the connection component, clamping component, and unlocking component.

[0023] Figure 7 is Figure 6 Enlarged view of the structures of the connection component, clamping component, and unlocking component.

[0024] Figure 8 is Figure 3 Enlarged view of the structures of the Z-shaped connecting plate, connecting bolt, directional wheel, and angle measuring component.

[0025] Figure 9 is Figure 8 Exploded view of the structures of the Z-shaped connecting plate, connecting bolt, directional wheel, and angle measuring component.

[0026] Figure 10 Schematic structural diagram of the measuring device for rural planning and design of the present invention in the state of measuring the perimeter.

[0027] Reference numerals: 100 - upper housing, 200 - lower housing, 300 - tape measure, 400 - fixing mechanism, 410 - rotating assembly, 411 - rotating rod, 412 - rotating shaft, 413 - worm, 414 - worm gear, 420 - bidirectional screw, 430 - fixing assembly, 431 - cross slide, 432 - elastic telescopic member, 434 - fixing plate, 500 - angle measuring mechanism, 510 - Z-shaped connecting plate, 520 - connecting bolt, 530 - directional wheel, 540 - angle measuring component, 541 - rotating disk, 542 - pointer, 543 - scale disk, 544 - clamping plate, 545 - arc-shaped clamping plate, 600 - connecting mechanism, 610 - connecting component, 611 - sleeve, 612 - left clamping plate, 613 - right clamping plate, 614 - card slot, 620 - clamping component, 621 - mounting block, 622 - mounting shaft, 623 - clamping block, 624 - first spring, 630 - unlocking component, 631 - sector column, 632 - tapered hole, 633 - second spring, 700 - winding disk, 800 - mounting frame, 900 - strip-shaped hole. Detailed implementation manners

[0028] In order to make the objectives, technical solutions, and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] The following describes the specific implementation of the present invention in detail with reference to specific embodiments.

[0030] As Figures 1 to 10As shown in the figure, a measuring device for rural planning and design provided as an embodiment of the present invention includes an upper housing 100 and a lower housing 200. A winding disc 700 is fixedly installed inside both the upper housing 100 and the lower housing 200. A coiled measuring tape 300 is installed inside the winding disc 700. Strip-shaped holes 900 that communicate with each other are opened on the left sides of both the upper housing 100 and the lower housing 200. The strip-shaped holes 900 are used for the measuring tape 300 to extend to the outside of the upper housing 100 and the lower housing 200. Sliding grooves for slidably installing a fixing mechanism 400 are opened on the front sides of the upper housing 100 and the lower housing 200. Mounting frames 800 for the fixing mechanism 400 to rotate are opened on the left and right sides of both the upper housing 100 and the lower housing 200. One end of the fixing mechanism 400 extends outside the upper housing 100 and the lower housing 200. It further includes: An angle measuring mechanism 500, both ends of the angle measuring mechanism 500 are installed outside the upper housing 100 and the lower housing 200, and one end of the angle measuring mechanism 500 is parallel to and coplanar with the strip-shaped hole 900. One end of the measuring tape 300 penetrates through the strip-shaped hole 900 and contacts one end of the angle measuring mechanism 500; A connecting mechanism 600, the connecting mechanism 600 includes a connecting component 610 and a clamping component 620. The connecting component 610 is located on the side of the angle measuring mechanism 500 away from the upper housing 100 and the lower housing 200. One side of the connecting component 610 is fixedly connected to the measuring tape 300. A clamping groove 614 that cooperates with the clamping component 620 is opened on the other side of the connecting component 610. The clamping component 620 is fixedly installed on the outer wall of the right side of the upper housing 100 and the lower housing 200; According to the outer shape specifications of the object to be measured, a plurality of upper shells 100, lower shells 200, and the angle measuring mechanisms 500 and connecting mechanisms 600 on both of them can be distributed at the specified measuring points of the object to be measured through the fixing mechanism 400. An upper shell 100 and a lower shell 200 can form a shell unit, so that each shell unit can independently adapt to different curvature surfaces and adjust the fitting angle according to the outer shape characteristics of the object to be measured. The connecting components 610 on a single upper shell 100 and lower shell 200 are displaced synchronously with the tape measure 300 and are connected to the clamping components 620 arranged on one side of the adjacent upper shell 100 and lower shell 200 as a whole, so that a plurality of upper shells 100, lower shells 200, and the tape measure 300 inside both of them can enclose a closed figure according to the outer shape specifications of the object to be measured, thereby forming a closed-loop measurement system, and obtaining the stretching length of the tape measure 300 between adjacent shell units. Through the perimeter calculation formula, the perimeter data of the object to be measured can be quickly obtained, so as to realize the measurement of the perimeter of the object to be measured by a single person, avoid the errors that may be brought by multi-person cooperative measurement, reduce the cost of manual measurement at the same time, and through the closed-loop measurement system composed of multiple measuring devices, the cumulative errors generated during traditional segmented measurement can be eliminated, thereby improving the accuracy of measurement data; Assume that the display of the tape measure 300 on the angle measuring mechanism 500 is 0 in the initial state. Combining with the attached Figure 10 , the following perimeter calculation formula can be obtained: C = N(L + A); Wherein, C is the perimeter of the object to be measured, N is the set number of measuring devices, L is the stretching length of the tape measure 300, and A is the straight-line distance between the angle measuring mechanism 500 and the connecting component 610 on the same upper shell 100 and lower shell 200; At the same time, when the tape measure 300 on a single upper shell 100 and lower shell 200 is connected to the adjacent upper shell 100 and lower shell 200, it will also drive the angle measuring mechanism 500 to deflect horizontally. The angle measuring mechanism 500 can measure the rotation angle of the tape measure 300 by deflecting horizontally, that is, measure the included angle between adjacent two upper shells 100 and lower shells 200, and combine it with the previously obtained multiple side length data of the object to be measured. It can not only calculate the area size of the object to be measured, but also accurately draw the outer contour of the object to be measured, realize the integration of the functions of the measuring device, and realize the measurement of the perimeter and area of the object to be measured and the drawing of the outer contour of the object to be measured by a single person, avoid the errors that may be brought by multi-person cooperative measurement, greatly improve the measurement efficiency, reduce the cost of manual measurement at the same time, and through the closed-loop measurement system composed of multiple measuring devices, the cumulative errors generated during traditional segmented measurement can be effectively eliminated, ensuring the accuracy and reliability of the overall measurement result; When measuring a relatively large area of land or farmland and when the accuracy requirements for perimeter and area data are not high, the left and right widths of the upper housing 100 and the lower housing 200 can be ignored, that is, the calculation of data A can be ignored, and only the stretching length of the tape measure 300 needs to be counted. In this way, the required perimeter data, area data, and outer contour data can also be obtained.

[0031] In a preferred embodiment, protrusions are distributed on the winding disc 700 in the upper housing 100, and grooves are distributed on the winding disc 700 in the lower housing 200. The protrusions cooperate with the grooves. In this way, not only can the stable fixation of the rolled tape measure 300 be completed, but also accurate positioning can be provided for the connection between the upper housing 100 and the lower housing 200, ensuring that the upper housing 100 and the lower housing 200 can be quickly and accurately connected as a whole, and further ensuring the installation accuracy of other components inside the two. The tail end of the rolled tape measure 300 in the winding disc 700 can be connected to a reel rotatably arranged in the winding disc 700, and the reel can be connected to an elastic contraction structure. The elastic contraction structure can adopt an elastic spring. In this way, the tape measure 300 in the free state can be automatically wound up, avoiding manual winding, and saving the measurement cost and measurement time.

[0032] As Figures 3 to 7 shown, as a preferred embodiment of the present invention, the connection assembly 610 includes a sleeve 611, a left clamping plate 612, a right clamping plate 613, and a card slot 614. A left clamping plate 612 is fixed on one side of the sleeve 611, and a right clamping plate 613 is movably arranged on the other side of the sleeve 611. The left clamping plate 612 and the right clamping plate 613 can fixedly connect the tape measure 300 to the sleeve 611 by locking each other. A card slot 614 matching the clamping component 620 is opened on the side of the sleeve 611 away from the left clamping plate 612. And the sleeve 611 preferably adopts a cylindrical structure with one end open and the other end closed. A control release component 630 that intermittently cooperates with the clamping component 620 is slidably installed on the inner wall of the sleeve 611.

[0033] During the stretching process of the tape measure 300, the sleeve 611 can move synchronously with the tape measure 300, so that the sleeve 611 can move to a position where it cooperates with the clamping component 620 on the adjacent housing unit. The clamping groove 614 on the sleeve 611 can cooperate with the clamping component 620 to connect the tape measure 300 and the adjacent housing unit into a whole, enabling multiple housing units and the tape measure 300 therein to enclose a closed figure according to the shape specifications of the object to be measured, thereby forming a closed-loop measurement system. This can ensure that a single person can complete the surveying and mapping of the perimeter, area, and contour of the object to be measured, realizing the integration of multiple functions of the measuring device, reducing the labor cost of measurement, effectively eliminating the cumulative error generated during traditional segmented measurement, and ensuring the accuracy and reliability of the overall measurement result.

[0034] In a preferred embodiment, initially, both the left clamping plate 612 and the right clamping plate 613 are in contact with the angle measuring mechanism 500, so that the display of the tape measure 300 on the angle measuring mechanism 500 in the initial state is 0 or other quantitative data, which facilitates the staff to quickly and accurately read the stretching length of the tape measure 300.

[0035] As Figures 3 to 7 shown, as a preferred embodiment of the present invention, the clamping component 620 includes a mounting block 621, a mounting shaft 622, a clamping block 623, and a first spring 624. The mounting blocks 621 are respectively fixed on the outer walls of one side of the upper housing 100 and the lower housing 200. Mounting shafts 622 are fixed on the end faces of the two mounting blocks 621 that are close to each other. The clamping blocks 623 are vertically symmetrically distributed between the two mounting blocks 621, and the upper and lower ends of the clamping block 623 are respectively rotatably connected to the mounting shafts 622 on the two mounting blocks 621. One side of the two clamping blocks 623 intermittently cooperates with the clamping groove 614 and the unlocking and control component 630 respectively. A first spring 624 is installed between the end faces of the two clamping blocks 623 that are close to each other.

[0036] The clamping groove 614 on the sleeve 611 can cooperate with the two clamping blocks 623 and the first spring 624 to connect the sleeve 611 and the adjacent housing unit into a whole, and further connect the tape measure 300 and the adjacent housing unit into a whole, enabling multiple housing units and the tape measure 300 therein to enclose a closed figure according to the shape specifications of the object to be measured, thereby forming a closed-loop measurement system. This can ensure that a single person can complete the surveying and mapping of the perimeter, area, and contour of the object to be measured, realizing the integration of multiple functions of the measuring device, reducing the labor cost of measurement, effectively eliminating the cumulative error generated during traditional segmented measurement, and ensuring the accuracy and reliability of the overall measurement result; When it is necessary to release the connection between the sleeve 611 and the adjacent housing unit, the unlocking component 630 moves towards the inside of the sleeve 611 and squeezes the side walls of the latch blocks 623, causing the two latch blocks 623 to approach each other and compress the first spring 624. When the overall width of the two latch blocks 623 is less than the width of the card slot 614, the two latch blocks 623 can be removed from the sleeve 611, thereby releasing the connection between the sleeve 611 and the adjacent housing unit, and further releasing the connection between the tape measure 300 and the adjacent housing unit. This facilitates the staff to separately collect multiple measuring devices, facilitates subsequent measurement of other measurement objects, and improves the convenience and practicality of the measuring device.

[0037] In a preferred embodiment, during the process of connecting the upper housing 100 and the lower housing 200 into a whole, the two mounting blocks 621 can also complete the limitation of the two latch blocks 623 through their respective mounting shafts 622, so that the two latch blocks 623 can be stably mounted on one side of the upper housing 100 and the lower housing 200, thereby ensuring the connection strength and connection stability between the tape measure 300 and the adjacent housing unit; One end of the latch block 623 that cooperates with the card slot 614 is provided with a hook structure, so that after the latch block 623 enters the card slot 614, it can effectively contact the inner end wall of the card slot 614, thereby completing the stable connection between the sleeve 611 and the latch block 623. Under the action of the elastic force released by the spring, the two latch blocks 623 can complete the cooperation with the card slot 614, and when the spring is in a compressed state, the two latch blocks 623 approach each other and can smoothly enter and exit the card slot 614.

[0038] As Figures 3 to 7 shown, as a preferred embodiment of the present invention, the unlocking component 630 includes a sector column 631, a tapered hole 632, and a second spring 633. One end of the sector column 631 is slidably installed inside the sleeve 611, the other end of the sector column 631 is located outside the sleeve 611, a tapered hole 632 is longitudinally opened in the middle of the sector column 631, the aperture of the tapered hole 632 gradually decreases from bottom to top, and a second spring 633 is installed between the inner wall of the tapered hole 632 and the inner wall of the sleeve 611.

[0039] In the initial state, the second spring 633 can drive the sector column 631 to move upward above the card slot 614 by releasing its own elastic force, avoiding interference of the sector column 631 with the connection between the latch block 623 and the card slot 614, and ensuring that the latch block 623 can effectively cooperate with the card slot 614; When it is necessary to release the connection between the sleeve 611 and the adjacent housing unit, the sector column 631 slides towards the inside of the sleeve 611, so that the end with a larger aperture on its tapered hole 632 first contacts the side wall of the latch 623, and drives the ends of the two latches 623 located inside the sleeve 611 into the tapered hole 632. Since the aperture of the tapered hole 632 continuously decreases during the downward sliding process of the sector column 631, this can drive the two latches 623 to approach each other and squeeze the first spring 624. When the overall width of the two latches 623 is smaller than the width of the card slot 614, due to the sector design of the sector column 631, it can be ensured that the latch 623 directly enters the card slot 614 from the tapered hole 632, so as to ensure that the latch 623 can smoothly move out of the sleeve 611, release the connection between the sleeve 611 and the adjacent housing unit, and further release the connection between the tape measure 300 and the adjacent housing unit, facilitating the staff to separately collect multiple measuring devices, facilitating subsequent measurement of other measurement objects, and improving the convenience and practicality of the measuring device.

[0040] In a preferred embodiment, the outer diameter of the sector column 631 is slightly smaller than the inner diameter of the sleeve 611. In this way, while ensuring that the sector column 631 can slide inside the sleeve 611, it can also ensure that the latch 623 will not interfere with the inner wall of the sleeve 611 during the process of withdrawing to the outside of the sleeve 611, so that the latch 623 can effectively and smoothly withdraw outside the sleeve 611.

[0041] As Figures 3 to 9 shown, as a preferred embodiment of the present invention, the angle measuring mechanism 500 includes a Z-shaped connecting plate 510, a connecting bolt 520, a directional wheel 530 and an angle measuring component 540. The Z-shaped connecting plates 510 are distributed in parallel on the outside of the upper housing 100 and the lower housing 200. The directional wheels 530 are vertically symmetrically installed inside the upper housing 100 and the lower housing 200. The two directional wheels 530 are used for guiding and feeding the tape measure 300 in a directional manner. The two Z-shaped connecting plates 510 and the directional wheels 530 are both installed on the upper housing 100 and the lower housing 200 through connecting bolts 520. The angle measuring component 540 is arranged on the outside of the upper housing 100 and the lower housing 200 and is rotatably connected to the two Z-shaped connecting plates 510. The central points of the angle measuring component 540 and the two directional wheels 530 are all in the same plane as the strip hole 900, and the angle measuring component 540 is in contact with the tape measure 300.

[0042] In a preferred embodiment, the directional wheel 530 can ensure that the tape measure 300 always remains parallel to the housing unit before being led out of the housing unit, ensuring that it will not deflect horizontally. This can improve the measurement accuracy of the angle measuring component 540, and further ensure the accuracy of the measurement data.

[0043] As shown Figures 3 to 9 in the figure, as a preferred embodiment of the present invention, the angle measurement assembly 540 includes a rotating disk 541, a pointer 542, a scale disk 543, a clamping plate 544 and an arc-shaped clamping plate 545. The rotating disk 541 is rotatably mounted on the Z-shaped connecting plate 510. One side of the rotating disk 541 is provided with a pointer 542 that cooperates with the scale disk 543. The scale disk 543 is fixed on the Z-shaped connecting plate 510 and is concentric with the rotating disk 541. The other side of the rotating disk 541 is fixed with a clamping plate 544 that cooperates with the arc-shaped clamping plate 545. The arc-shaped clamping plates 545 are symmetrically distributed between the two rotating disks 541 and are both connected to the clamping plates 544 on the two rotating disks 541. A measuring tape 300 is arranged between the two arc-shaped clamping plates 545. The central points of the two arc-shaped clamping plates 545 and the strip-shaped hole 900 are coplanar.

[0044] Since the adjacent housing units are not on the same vertical plane, when the measuring tape 300 on the single upper housing 100 and the lower housing 200 is connected to the adjacent upper housing 100 and lower housing 200, the measuring tape 300 will drive the two arc-shaped clamping plates 545 in contact with it to rotate. The two arc-shaped clamping plates 545 drive the rotating disk 541 to deflect horizontally. The rotating disk 541 drives the pointer 542 to deflect. The pointer 542 can measure the deflection angle of the measuring tape 300, that is, measure the included angle between two adjacent housing units, by deflecting and cooperating with the scale disk 543. Combined with the multiple side length data of the measured object obtained previously, not only can the area size of the measured object be calculated, but also the external contour of the measured object can be accurately drawn. It can be realized that the measurement of the perimeter and area of the measured object and the drawing of the external contour of the measured object can be completed by a single person's operation, thereby realizing the integration of the multifunction of the measuring device, avoiding the errors that may be brought by multi-person cooperative measurement, greatly improving the measurement efficiency, reducing the cost of manual measurement at the same time, and through the closed-loop measurement system composed of multiple measuring devices, the cumulative error generated during traditional segmented measurement can be effectively eliminated, ensuring the accuracy and reliability of the overall measurement result.

[0045] In a preferred embodiment, the arc-shaped clamping plate 545 preferably adopts an arc-shaped plate structure with a quarter-circle cross-section, which can reduce its contact area with the measuring tape 300, avoid interference of the arc-shaped clamping plate 545 with the deflection of the measuring tape 300, and ensure the accuracy of the angle measurement data.

[0046] As shown Figures 1 to 5As shown, as a preferred embodiment of the present invention, the fixing mechanism 400 includes a rotating assembly 410, a bidirectional screw 420, and a fixing assembly 430. One end of the rotating assembly 410 is respectively installed inside the upper housing 100 and the lower housing 200 and is connected to the bidirectional screw 420. The other end of the rotating assembly 410 extends outside the upper housing 100. The two ends of the bidirectional screw 420 are respectively rotatably installed in the mounting frames 800 provided on both sides of the upper housing 100 and the lower housing 200 through bearings. The fixing assemblies 430 are symmetrically arranged between the upper housing 100 and the lower housing 200. One end of each of the two fixing assemblies 430 is threadedly connected to the two ends of the bidirectional screw 420, and the other end of each of the two fixing assemblies 430 extends outside the upper housing 100 and the lower housing 200.

[0047] The rotating assembly 410 can drive the bidirectional screw 420 to rotate. By rotating and cooperating with the upper housing 100 and the lower housing 200, the bidirectional screw 420 can drive the two fixing assemblies 430 to approach or move away from each other, so that the two fixing assemblies 430 can complete or release the fixation of the clamping object, thereby completing or releasing the fixation and installation of a single measuring device.

[0048] In a preferred embodiment, the bidirectional screw 420 preferably adopts a double-headed screw with opposite left and right thread directions.

[0049] As Figures 1 to 5 As shown, as a preferred embodiment of the present invention, the rotating assembly 410 includes a rotating rod 411, a rotating shaft 412, a worm 413, and a worm gear 414. One end of the rotating shaft 412 is rotatably installed inside the upper housing 100 and the lower housing 200. A worm 413 is fixed to one end of the rotating shaft 412. The worm 413 meshes with the worm gear 414 fixed on the bidirectional screw 420. The other end of the rotating shaft 412 extends outside the upper housing 100 and is fixedly connected to the rotating rod 411.

[0050] The rotating rod 411 drives the rotating shaft 412 to rotate, the rotating shaft 412 drives the worm 413 to rotate synchronously, and the worm 413 drives the bidirectional screw 420 to rotate through the worm gear 414, so that the bidirectional screw 420 can drive the two fixing components 430 to approach each other and complete the fixation of the clamped object, enabling the staff to distribute a single measuring device at the required measuring points according to the shape specifications of the object to be measured, ensuring that each housing unit can independently adapt to different curvature surfaces and adjust the fitting angle according to the shape characteristics of the object to be measured. This facilitates single-person operation. After multiple measuring devices are individually fixed, only by connecting the tape measure 300 to adjacent housing units through the connecting mechanism 600 to form an integrated whole and a closed-loop measuring system, the perimeter, area, and contour of the object to be measured can be mapped, saving a large amount of manual measurement costs and improving the measurement efficiency and the accuracy of measurement data.

[0051] In a preferred embodiment, the clamped object can be adaptively adjusted according to the geographical environment where the object to be measured is located, and can be a wall column, a tree branch, a concrete pile foundation, or a columnar object carried by a person.

[0052] As Figures 1 to 5 shown, as a preferred embodiment of the present invention, the fixing component 430 includes a cross slide 431, an elastic telescopic member 432, and a fixing plate 434. The cross slide 431 is symmetrically and slidably arranged between the upper housing 100 and the lower housing 200, and the two cross slides 431 are respectively threadedly connected to both ends of the bidirectional screw 420. One end of the cross slide 431 extends outside the upper housing 100 and the lower housing 200. The elastic telescopic member 432 is located outside the upper housing 100 and the lower housing 200 and is slidably connected to the cross slide 431. One end of the elastic telescopic member 432 is fixed with a fixing plate 434.

[0053] By rotating and cooperating with the upper housing 100 and the lower housing 200, the bidirectional screw 420 can drive the two cross slides 431 to move synchronously, so that the two cross slides 431 approach or move away from each other. When the two cross slides 431 approach each other, they can complete the clamping and fixation of the clamped object, enabling a single measuring device to be stationary with the clamped object, thus facilitating the formation of a closed measuring system by multiple measuring devices.

[0054] In a preferred embodiment, the type of the fixing plate 434 can be replaced according to the different clamped objects to ensure that the fixing plate 434 can effectively and stably clamp and fix the clamped object, thereby ensuring the connection strength between the two; The elastic telescopic member 432 preferably adopts a telescopic connection structure composed of a telescopic column and a spring. One end of the telescopic column is slidably installed on the cross slide 431, the other end of the telescopic column is fixedly connected to the fixing plate 434, a spring is sleeved outside the telescopic column, and both ends of the spring are connected to the cross slide 431 and the fixing plate 434 respectively.

[0055] The working principle of the present invention is as follows: The rotating rod 411 drives the rotating shaft 412 to rotate, the rotating shaft 412 drives the worm 413 to rotate synchronously, the worm 413 drives the bidirectional screw 420 to rotate through the worm gear 414. By rotating and cooperating with the upper housing 100 and the lower housing 200, the bidirectional screw 420 can drive the two cross slides 431 to move synchronously, so that the two cross slides 431 approach or move away from each other. When the two cross slides 431 approach each other, they can clamp and fix the clamping object, so that a single measuring device can be stationary with the clamping object, enabling the staff to distribute the single measuring device at the required measuring points according to the shape specifications of the object to be measured, ensuring that each housing unit can independently adapt to different curvature surfaces and adjust the fitting angle according to the shape characteristics of the object to be measured; During the stretching process of the tape measure 300, the sleeve 611 can move synchronously with the tape measure 300, so that the sleeve 611 can move to cooperate with the clamping assembly 620 on its adjacent housing unit. The card slot 614 on the sleeve 611 can cooperate with the two clamping blocks 623 and the spring 624 to connect the sleeve 611 with the adjacent housing unit as a whole, and then connect the tape measure 300 with the adjacent housing unit as a whole, so that multiple housing units and the tape measure 300 therein can enclose a closed figure according to the shape specifications of the object to be measured, thereby forming a closed-loop measurement system, and obtaining the stretching length of the tape measure 300 between adjacent housing units, and quickly obtaining the perimeter data of the object to be measured through the perimeter calculation formula; Since the adjacent housing units are not on the same vertical plane, when the tape measure 300 on the single upper housing 100 and the lower housing 200 is connected to the adjacent upper housing 100 and the lower housing 200, the tape measure 300 will drive the two arc-shaped clamping plates 545 in contact with it to rotate. The two arc-shaped clamping plates 545 drive the rotating disk 541 to deflect horizontally, and the rotating disk 541 drives the pointer 542 to deflect. The pointer 542 can measure the deflection angle of the tape measure 300, that is, measure the included angle between two adjacent housing units, by deflecting and cooperating with the scale disk 543. Combining with the multiple side length data of the object to be measured obtained previously, not only can the area size of the object to be measured be calculated, but also the contour of the object to be measured can be accurately drawn. It can be realized that a single person can complete the measurement of the perimeter and area of the object to be measured and the drawing of the contour of the object to be measured, thus realizing the integration of the multi-function of the measuring device, avoiding the errors that may be brought by multi-person cooperative measurement, greatly improving the measurement efficiency, reducing the cost of manual measurement at the same time, and through the closed-loop measurement system composed of multiple measuring devices, the cumulative error generated during traditional segmented measurement can be effectively eliminated; The above is the working principle of the measuring device for rural planning and design.

[0056] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A measuring device for rural planning design, comprising an upper shell and a lower shell, wherein the upper shell and the lower shell constitute a shell unit, wherein winding disks are fixed inside the upper shell and the lower shell, wherein a rolled tape measure is installed inside the winding disk, wherein mutually connected strip holes are provided on the left sides of the upper shell and the lower shell, wherein a slide groove and an installation frame for installing a fixing mechanism are respectively provided on the upper shell and the lower shell, wherein the device is characterized in that: Also includes: An angle measuring mechanism, wherein two ends of the angle measuring mechanism are respectively mounted on the outside of the upper shell and the lower shell, and one end of the angle measuring mechanism is parallel to the strip hole and coexists in the same plane, and one end of the tape measure passes through the strip hole and contacts with one end of the angle measuring mechanism; A connecting mechanism, the connecting mechanism comprising a connecting component and a snap-on component, the connecting component being located on a side of the angle measuring mechanism away from the upper shell and the lower shell, one side of the connecting component being fixedly connected to the tape measure, the other side of the connecting component being provided with a snap-on groove matched with the snap-on component, the snap-on component being fixed to the outer wall on the right side of the upper shell and the lower shell; The fixing mechanism distributes multiple shell units at designated measuring points according to the external specifications of the measured object; the connecting mechanism connects the tape measure and its adjacent shell units as a whole to form a closed-loop measuring system; and the angle measuring mechanism measures the deflection data of the horizontal angle of the tape measure.

2. The rural planning and design measuring device according to claim 1, characterized in that: The connection component comprises: A sleeve is arranged outside the housing unit, the sleeve adopts a cylindrical structure with one end open and the other end closed, a release assembly intermittently matched with the clamping assembly is slidably mounted on the inner wall of the sleeve, and a clamping groove matched with the clamping assembly is opened on one side of the sleeve; A left clamp fixed to one side of the sleeve; A right clamping plate is movably arranged on the other side of the sleeve, and the right clamping plate cooperates with the left clamping plate to fix the tape measure.

3. The measuring device for rural planning and design according to claim 2, characterized in that: The clamping assembly comprises: Two mounting blocks are respectively fixed on the outer wall of one side of the upper shell and the lower shell, and mounting shafts are fixed on the end surfaces of the two mounting blocks close to each other; Two clamping blocks are vertically symmetrically distributed between the two mounting blocks, the upper and lower ends of the two clamping blocks are rotatably connected to the mounting shafts on the two mounting blocks, and one side of the two clamping blocks is intermittently matched with the clamping slot and the release assembly respectively; A spring is installed between two blocks.

4. The rural planning and design measuring device according to claim 3, characterized in that: The control release component comprises: A sector column with one end slidably mounted in the sleeve, the other end of the sector column is located outside the sleeve, a tapered hole is longitudinally opened in the middle of the sector column, and the diameter of the tapered hole gradually decreases from bottom to top; Spring 2 is installed in the tapered hole and connected to the inner wall of the sleeve.

5. The rural planning and design measuring device according to claim 1, characterized in that: The angle measuring mechanism comprises: Z-shaped connecting plates are parallelly distributed outside the upper shell and the lower shell; The wheels are directional wheels vertically and symmetrically mounted inside the upper shell and the lower shell, and the two directional wheels and the Z-shaped connecting plate are mounted on the upper shell and the lower shell through the same connecting bolts; An angle measuring assembly is arranged outside the upper shell and the lower shell, and the angle measuring assembly is rotatably connected to the two Z-shaped connecting plates. The center points of the angle measuring assembly and the two directional wheels are in the same plane as the strip hole, and the angle measuring assembly is in contact with the tape measure.

6. The rural planning and design measuring device according to claim 5, characterized in that: The angle measurement component comprises: Rotate the rotating disk mounted on the Z-shaped connecting plate; A pointer fixed to one side of the rotating disk; A scale plate fixed on the Z-shaped connecting plate and concentric with the rotating disk, the scale plate being matched with the pointer; A card plate fixed on the other side of the rotating disk; The arc-shaped clamping plates are symmetrically distributed between the two rotating disks and are connected to the two clamping plates. The measuring tape is located between the two arc-shaped clamping plates, and the center points of the two arc-shaped clamping plates and the strip-shaped holes are in the same plane.

7. The rural planning and design measuring device according to claim 1, characterized in that: The fixing mechanism comprises: A rotating assembly having one end mounted inside the upper shell and the lower shell respectively, and one end of the rotating assembly extending to the outside of the upper shell; Two ends of the bidirectional screws are rotatably mounted in mounting frames arranged on both sides of the upper shell and the lower shell, and the bidirectional screws are connected to the other end of the rotating assembly; The fixing components are symmetrically arranged between the upper shell and the lower shell, one end of the two fixing components are respectively threadedly connected to the two ends of the bidirectional screw, and the other ends of the two fixing components extend to the outside of the upper shell and the lower shell.

8. The rural planning and design measuring device according to claim 7, characterized in that: The rotating assembly comprises: A rotating shaft having one end rotatably mounted inside the upper shell and the lower shell, and the other end of the rotating shaft extending to the outside of the upper shell; A worm gear fixed to one end of the rotating shaft; A worm wheel fixed on the bidirectional screw, the worm wheel meshing with the worm; A rotating rod is fixed on the other end of the rotating shaft.

9. The rural planning and design measuring device according to claim 7, characterized in that: The fixing assembly comprises: Two cross slides are symmetrically slidably arranged between the upper shell and the lower shell, the two cross slides are respectively threadedly connected to the two ends of the bidirectional screw, and one end of the cross slide extends to the outside of the upper shell and the lower shell; An elastic telescopic member located outside the upper shell and the lower shell and slidably connected to the cross slide; A fixing plate fixed on one end of the elastic telescopic member.

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