Land measurement auxiliary device for land utilization planning
By designing the housing and brush structure of the land surveying auxiliary device, the problem of dust accumulation on the handheld measuring tape in the field was solved, enabling automatic cleaning and smooth winding of the measuring tape, thus improving the reliability and efficiency of the measurement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-27
- Publication Date
- 2026-04-10
AI Technical Summary
The tape of existing handheld rulers is prone to accumulating dust and impurities when used in fields, leading to difficulties in reading and jamming during winding, which affects subsequent use.
A land surveying auxiliary device for land use planning was designed, comprising a housing, a manual rotating shaft, a measuring tape, a sieve cylinder, and a brush structure. Through the cooperation of a one-way valve and a telescopic spring, the measuring tape is automatically cleaned to ensure that dust and impurities do not accumulate.
It effectively reduces the impact of dust and impurities on the readings, ensures smooth tape rewinding, and improves the reusability and measurement accuracy of the device.
Smart Images
Figure CN121829255A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of land survey, and particularly relates to a land survey auxiliary device for land use planning. BACKGROUND
[0002] As the basis of land use, the complexity and dynamics of the geological environment have a profound impact on the mode, intensity and sustainability of land use. Geological resources provide material support for land use, but geological environmental problems constrain land use.
[0003] Land survey devices play a crucial role in land use planning and surveying and mapping engineering. Surveying and mapping engineering is a technical system for acquiring, processing and analyzing geographic spatial information, and provides basic data support and decision-making basis for land use planning. Surveying and mapping is one of the core fields of surveying and mapping engineering, aiming to obtain basic information of land through high-precision measurement technology, including topography, landform, cadastral, etc. The hand tape is the most basic tool in land surveying and is commonly used in planning practice. It is mainly used for measuring short distances and is small in size and light in weight, so it can be carried to the field or construction site. The measurement data is converted into a planning base map, and the land use type is marked. Regular measurement of land use changes provides the basis for planning adjustment. However, in the field measurement, the tape of the hand tape is inevitably accumulated with dust and other field particles. Since the length of the tape of the hand tape is relatively long, it is very difficult to clean up, which will cause reading difficulties or jamming during rewinding in the subsequent use, bringing many inconveniences to the subsequent reuse. SUMMARY
[0004] The purpose of the present application is to solve the problem of the existing tape that is difficult to clean and is not conducive to subsequent use, and to provide a land survey auxiliary device for land use planning.
[0005] In order to achieve the above purpose, the following technical scheme is adopted: A land survey auxiliary device for land use planning, comprising a shell, a hand shaft arranged outside the shell, and a tape fixedly connected to the outer surface of the hand shaft, the front surface of the bottom cylinder arranged on the outer surface of the shell is fixedly connected with an annular plate, and a pair of interconnected sieve cylinders are fixedly connected to the lower part of the inner wall of the shell, a first soft hair brush is fixedly connected to the outer surface of each sieve cylinder, a group of piston grooves are formed in the front surface of the annular plate, a first piston rod is slidably connected inside each piston groove, and an extension spring is fixedly connected to the inner wall of each piston groove, the hand shaft penetrates through the annular plate and is slidably connected to the outer surface of the first piston rod, each piston groove is connected to the inside of the bottom cylinder through a first one-way valve, and the bottom cylinder is connected to the inside of the sieve cylinder through a second one-way valve.
[0006] As a further description of the above technical solutions: The third one-way valve inlaid on the outer surface of the annular plate is connected with the interior of the piston groove, one end of the telescopic spring away from the piston groove is fixedly connected with the first piston rod, the air inlet end of the third one-way valve is connected with the outside, and the air outlet end of the third one-way valve is connected with the interior of the piston groove.
[0007] As a further description of the above technical solutions: The extension end of the scale band penetrates between the two screen barrels and extends to the outside, the air inlet end of the first one-way valve is connected with the interior of the annular plate, and the air outlet end of the first one-way valve is connected with the interior of the bottom barrel, the air inlet end of the second one-way valve is connected with the interior of the bottom barrel, and the air outlet end of the second one-way valve is connected with the interior of the screen barrel.
[0008] As a further description of the above technical solutions: The outer surface of the shell is fixedly connected with a square barrel, and the inner wall of the square barrel is fixedly connected with the inner wall of an inner barrel.
[0009] As a further description of the above technical solutions: The inner wall of the sliding groove opened in the inner wall of the square barrel is slidably connected with a sliding block, the sliding block is fixedly connected with the outer surface of the inner barrel, the inner wall of the sliding groove is fixedly connected with a compression spring, and one end of the compression spring away from the sliding groove is fixedly connected with the sliding block.
[0010] As a further description of the above technical solutions: The inner wall of the piston barrel fixedly connected with the outer surface of the square barrel is slidably connected with a second piston rod, the second piston rod extends to the interior of the sliding groove and is fixedly connected with the sliding block, the through hole opened in the inner wall of the inner barrel is connected with a cavity opened in the interior of the sliding block, the inner wall of the cavity is fixedly connected with a first check valve, and the outer surface of the piston barrel is inlaid with a second check valve.
[0011] As a further description of the above technical solutions: The outer surface of the square barrel is fixedly connected with a motor, an eccentric wheel arranged in the interior of the sliding groove is fixedly connected with the output end of the motor, and the outer surface of the sliding block is slidably connected with the eccentric wheel.
[0012] As a further description of the above technical solutions: The air inlet end of the first check valve is connected with the interior of the inner barrel through the cavity and the through hole, and the air outlet end of the first check valve is connected with the interior of the piston barrel, the air inlet end of the second check valve is connected with the interior of the piston barrel, and the air outlet end of the second check valve is connected with the outside.
[0013] As a further description of the above technical solutions: The upper surface of the shell is fixedly connected with a handle, and the bottom surface of the shell is fixedly connected with a sharp head.
[0014] In summary, due to the adoption of the technical scheme, the application has the following beneficial effects: In the application, when the ruler tape is wound by pulling the ruler tape to drive the manual rotating shaft to rotate or rotate the manual rotating shaft, the manual rotating shaft intermittently contacts the outer surface of the first piston rod, and under the arrangement of the extension spring, the first piston rod reciprocates in the inner wall of the piston groove, the external air flows to the outside of the sieve cylinder through the third one-way valve, the first one-way valve and the second one-way valve, and under the cooperation of the first soft brush, the dust on the outer surface of the ruler tape is cleaned, the accumulation of dust and other impurities is slowed down, and the subsequent use process is difficult to read or the winding process is jammed. The stretching and winding of the device automatically clean the outer surface of the ruler tape, which is beneficial to the subsequent reuse of the device. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 A land surveying auxiliary device for land use planning is provided. Figure 2 A land surveying auxiliary device for land use planning is provided. Figure 3 A land surveying auxiliary device for land use planning is provided. Figure 4 A land surveying auxiliary device for land use planning is provided. Figure 5 A land surveying auxiliary device for land use planning is provided. Figure 6 A land surveying auxiliary device for land use planning is provided. Figure 4 A land surveying auxiliary device for land use planning is provided.
[0016] Legend: 1, shell; 2, manual rotating shaft; 3, ruler tape; 4, ring plate; 5, sieve cylinder; 6, first soft brush; 7, piston groove; 8, first piston rod; 9, extension spring; 10, bottom cylinder; 11, first one-way valve; 12, second one-way valve; 13, third one-way valve; 14, square cylinder; 15, inner cylinder; 16, second soft brush; 17, sliding groove; 18, sliding block; 19, compression spring; 20, piston cylinder; 21, second piston rod; 22, through hole; 23, cavity; 24, first check valve; 25, second check valve; 26, motor; 27, eccentric wheel; 28, handle; 29, sharp head. DETAILED DESCRIPTION
[0017] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.
[0018] Please refer to Figures 1-6 The present application provides a technical solution: a land surveying auxiliary device for land use planning, comprising a shell 1, a manual rotating shaft 2 arranged outside the shell 1, and a scale tape 3 fixedly connected to the outer surface of the manual rotating shaft 2. The manual rotating shaft 2 penetrates the shell 1 and is rotatably connected to the inner wall of the shell 1. A handle 28 is fixedly connected to the upper surface of the shell 1, and a sharp head 29 is fixedly connected to the bottom surface of the shell 1. The handle 28 is arranged to facilitate gripping, and the sharp head 29 is arranged to facilitate the positioning and pointing of the device. An annular plate 4 is fixedly connected to the front surface of a bottom cylinder 10 arranged on the outer surface of the shell 1. A pair of interconnected sieve cylinders 5 are fixedly connected to the lower part of the inner wall of the shell 1. The bottom cylinder 10 is fixedly connected to the outer surface of the shell 1. A group of piston grooves 7 are formed in the front surface of the annular plate 4. A third one-way valve 13 inlaid on the outer surface of the annular plate 4 is in communication with the interior of the piston groove 7. The air inlet end of the third one-way valve 13 is in communication with the outside, and the air outlet end of the third one-way valve 13 is in communication with the interior of the piston groove 7. The extension end of the scale tape 3 penetrates between the two sieve cylinders 5 and extends to the outside.
[0019] The air inlet end of the first one-way valve 11 is in communication with the interior of the annular plate 4, and the air outlet end of the first one-way valve 11 is in communication with the interior of the bottom cylinder 10. The air inlet end of the second one-way valve 12 is in communication with the interior of the bottom cylinder 10, and the air outlet end of the second one-way valve 12 is in communication with the interior of the sieve cylinder 5, ensuring the flow direction of the air in the piston groove 7, i.e. the external air flows to the interior of the sieve cylinder 5 through the third one-way valve 13, the piston groove 7, the first one-way valve 11, and the second one-way valve 12. The outer surfaces of the two sieve cylinders 5 are each fixedly connected with a first soft hair brush 6, which plays a cleaning role on the outer surface of the scale tape 3 moving between the two sieve cylinders 5. Each piston groove 7 is slidably connected with a first piston rod 8, and the inner wall of each piston groove 7 is fixedly connected with a telescopic spring 9, one end of which away from the piston groove 7 is fixedly connected with the first piston rod 8, Figure 4 and Figure 6 The telescopic springs 9 in the embodiments are in a natural state, and the telescopic springs 9 play a reset effect on the first piston rod 8. The manual rotating shaft 2 penetrates the annular plate 4 and is slidably connected with the outer surface of the first piston rod 8. Each piston groove 7 is in communication with the interior of the bottom cylinder 10 through the first one-way valve 11, and the bottom cylinder 10 is in communication with the interior of the sieve cylinder 5 through the second one-way valve 12.
[0020] When the ruler tape 3 is pulled to drive the manual rotating shaft 2 to rotate or the manual rotating shaft 2 is rotated to wind the ruler tape 3, the manual rotating shaft 2 is intermittently in contact with the outer surface of the first piston rod 8, and under the arrangement of the extension spring 9, the first piston rod 8 reciprocates in the inner wall of the piston groove 7, the external air flows to the outside of the sieve cylinder 5 through the third one-way valve 13, the first one-way valve 11 and the second one-way valve 12, and under the cooperation of the first soft brush 6, the dust on the outer surface of the ruler tape 3 penetrating between the two sieve cylinders 5 is cleaned, the accumulation of dust and other impurities is slowed down, the reading difficulty in the subsequent use process or the jamming in the winding process is reduced, the automatic cleaning effect of the outer surface of the ruler tape 3 during the stretching and winding of the ruler tape 3 is realized, and the subsequent repeated use of the device is facilitated.
[0021] The outer surface of the shell 1 is fixedly connected with a square tube 14, the inner wall of the square tube 14 is slidably connected with the inner wall of an inner tube 15, the inner wall of the inner tube 15 is fixedly connected with a second soft brush 16, the second soft brush 16 is arranged to clean the outer surface of the folding ruler penetrating the inside of the inner tube 15, the inner wall of a sliding groove 17 opened in the inner wall of the square tube 14 is slidably connected with a sliding block 18, the sliding block 18 is fixedly connected with the outer surface of the inner tube 15, the sliding block 18 is slidably connected with the penetrating part of the square tube 14, the inner wall of the sliding groove 17 is fixedly connected with a compression spring 19, Figure 4 and Figure 5 The upper part of the compression spring 19 is in a natural state, and the lower part of the compression spring 19 is in a compressed state, the compression spring 19 is arranged to provide buffering and resetting effects for the sliding block 18, and one end of the compression spring 19 away from the sliding groove 17 is fixedly connected with the sliding block 18.
[0022] The inner wall of the piston cylinder 20 fixedly connected to the outer surface of the square cylinder 14 is slidingly connected with the second piston rod 21, the second piston rod 21 extends to the inside of the sliding groove 17 and is fixedly connected with the sliding block 18, the outer surface of the square cylinder 14 is fixedly connected with the motor 26, the eccentric wheel 27 arranged in the inside of the sliding groove 17 is fixedly connected with the output end of the motor 26, the eccentric wheel 27 is slidingly connected with the outer surface of the sliding block 18, the motor 26 does not contact with the penetration of the square cylinder 14, the eccentric wheel 27 does not contact with the inner wall of the sliding groove 17, the motor 26 drives the eccentric wheel 27 to rotate in the inside of the sliding groove 17, so that the sliding block 18 reciprocatingly moves in the inside of the sliding groove 17, the inner cylinder 15 and the second soft brush 16 move with the sliding block 18, so that the second soft brush 16 arranged in the inside of the inner cylinder 15 plays a cleaning role on the outer surface of the folding ruler penetrating through the inner cylinder 15, the second piston rod 21 does not contact with the penetration of the square cylinder 14, the through hole 22 opened in the inner wall of the inner cylinder 15 is in communication with the cavity 23 opened in the inside of the sliding block 18, the first check valve 24 is fixedly connected with the inner wall of the cavity 23, the second check valve 25 is inlaid on the outer surface of the piston cylinder 20, the air inlet end of the first check valve 24 is in communication with the inside of the inner cylinder 15 through the cavity 23 and the through hole 22, and the air outlet end of the first check valve 24 is in communication with the inside of the piston cylinder 20, the air inlet end of the second check valve 25 is in communication with the inside of the piston cylinder 20, and the air outlet end of the second check valve 25 is in communication with the outside, so as to ensure the flow direction of the air in the inside of the piston cylinder 20, that is, the air in the inside of the inner cylinder 15 flows to the inside of the piston cylinder 20 through the through hole 22, the cavity 23 and the first check valve 24, and flows to the outside through the second check valve 25, so that the dust on the surface of the folding ruler penetrating into the inside of the inner cylinder 15 flows to the outside along with the air.
[0023] In land surveying, hand-held rulers and folding rulers are used as portable measuring tools, and are suitable for different scenarios. The core functions of the two are portability, ease of operation and adaptability. The folding ruler solves the problem of inconvenience in carrying the traditional long ruler through the foldable design. The flexibility of the folding ruler makes it more suitable for irregular land surveying. If the measurement task is mainly short distance and regular land, and the budget is limited, the hand-held ruler is preferred. If irregular land, large-scale land or high precision is required, the folding ruler is preferred. In complex projects, both hand-held rulers and folding rulers can be used to improve the efficiency of land surveying and support the whole process of planning. The planning scheme needs to be verified by hand-held ruler measurement to determine its feasibility. Land surveying is like a physical examination, the hand-held ruler is like a stethoscope, and land use planning is like a doctor's diagnosis and prescription. None of the three is dispensable: without measurement, planning has no basis; without planning, measurement is meaningless; without a hand-held ruler, measurement cannot be implemented. The measurement data obtained by the device provide the basis for land use planning. For small-scale land, detailed layout is required. In the measurement stage, the hand-held ruler directly participates in data collection, such as boundary measurement and topographic elevation determination. In the planning stage, the hand-held ruler measurement results are used to verify the feasibility of the scheme, such as whether the building spacing meets the fire safety specifications. In the implementation stage, the hand-held ruler supervises the implementation of the planning, such as checking whether the actual construction exceeds the red line of the land use.
[0024] When the motor 26 works, it drives the eccentric wheel 27 to rotate, so that the slider 18 drives the inner cylinder 15 and the second soft brush 16 to move reciprocally inside the square cylinder 14. The second soft brush 16 cleans the outer surface of the columnar measuring tool used in the folding ruler inside the inner cylinder 15 during land surveying. At the same time, the air in the inner cylinder 15 flows through the through hole 22, the cavity 23 and the first non-return valve 24 to the inside of the piston cylinder 20, and finally flows to the outside through the second non-return valve 25, so that the dust cleaned by the second soft brush 16 in the inner cylinder 15 follows the air flow to the outside, which cleans the folding ruler and other tools used in land surveying, and thus provides a strong basis for subsequent land use planning.
[0025] Working principle: in use, the motor 26 is connected with the mobile power supply, pull the tape 3 drive hand shaft 2 rotation or through the rotation of hand shaft 2 to tape 3 winding, hand shaft 2 and the first piston rod 8 intermittent contact with the outer surface, under the setting of telescopic spring 9, so that the first piston rod 8 reciprocating in the inner wall of piston groove 7, the outside air through the third one-way valve 13, first one-way valve 11 and second one-way valve 12 to the outside of the screen cylinder 5, under the cooperation of the first soft brush 6, through the two screen cylinder 5 between the tape 3 outer surface of dust cleaning effect, slow down the dust and other impurities accumulation in the subsequent use process in reading difficult or winding when the card, the device of tape 3 stretch and winding automatically on the tape 3 outer surface play automatic cleaning effect, is conducive to the subsequent repeated use of the device, motor 26 work when the eccentric wheel 27 rotation, so that the slider 18 drive inner cylinder 15 and the second soft brush 16 in the inside of the square tube 14 reciprocating, the second soft brush 16 on the inside of the inner cylinder 15 folding ruler outer surface play a cleaning role, at the same time, the inner cylinder 15 inside air through the hole 22, cavity 23 and first check valve 24 to the inside of the piston cylinder 20, and finally through the second check valve 25 to the outside, so that the inner cylinder 15 inside the dust cleaned by the second soft brush 16 follow the air to the outside, to the folding ruler used in land surveying tools play a cleaning role.
[0026] The above description is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled in the art of the technical range disclosed in the present application, according to the technical solution and the inventive concept of the present application to equivalent replacement or change, should be covered in the protection scope of the present application.
Claims
1. A land surveying auxiliary device for land use planning, comprising a housing, a manually operated rotating shaft disposed outside the housing, and a measuring tape fixedly connected to the outer surface of the manually operated rotating shaft, characterized in that, An annular plate is fixedly connected to the front of the bottom cylinder on the outer surface of the shell, and a pair of interconnected sieve cylinders are fixedly connected to the lower part of the inner wall of the shell. A first soft brush is fixedly connected to the outer surface of each of the two sieve cylinders. A set of piston grooves is opened on the front of the annular plate. A first piston rod is slidably connected inside each piston groove, and a telescopic spring is fixedly connected to the inner wall of each piston groove. The manual rotating shaft passes through the annular plate and is slidably connected to the outer surface of the first piston rod. Each piston groove is connected to the inside of the bottom cylinder through a first one-way valve, and the bottom cylinder is connected to the inside of the sieve cylinder through a second one-way valve.
2. The land surveying auxiliary device for land use planning according to claim 1, characterized in that, The third one-way valve embedded on the outer surface of the annular plate is connected to the inside of the piston groove. The end of the telescopic spring away from the piston groove is fixedly connected to the first piston rod. The air inlet of the third one-way valve is connected to the outside, and the air outlet of the third one-way valve is connected to the inside of the piston groove.
3. The land surveying auxiliary device for land use planning according to claim 1, characterized in that, The extension end of the measuring tape passes through the space between the two screen cylinders and extends to the outside. The air inlet end of the first one-way valve is connected to the inside of the annular plate, and the air outlet end of the first one-way valve is connected to the inside of the bottom cylinder. The air inlet end of the second one-way valve is connected to the inside of the bottom cylinder, and the air outlet end of the second one-way valve is connected to the inside of the screen cylinder.
4. The land surveying auxiliary device for land use planning according to claim 1, characterized in that, A square tube is fixedly connected to the outer surface of the shell, and a second soft brush is fixedly connected to the inner wall of the inner tube, which is slidably connected to the inner wall of the square tube.
5. The land surveying auxiliary device for land use planning according to claim 4, characterized in that, A slider is slidably connected to the inner wall of the groove opened in the inner wall of the square tube. The slider is fixedly connected to the outer surface of the inner tube. A compression spring is fixedly connected to the inner wall of the groove. The end of the compression spring away from the groove is fixedly connected to the slider.
6. The land surveying auxiliary device for land use planning according to claim 5, characterized in that, The inner wall of the piston cylinder, which is fixedly connected to the outer surface of the square cylinder, is slidably connected to a second piston rod. The second piston rod extends into the interior of the slide groove and is fixedly connected to the slider. The through hole opened in the inner wall of the inner cylinder is connected to the cavity opened inside the slider. The inner wall of the cavity is fixedly connected to a first check valve. The outer surface of the piston cylinder is inlaid with a second check valve.
7. The land surveying auxiliary device for land use planning according to claim 6, characterized in that, A motor is fixedly connected to the outer surface of the square tube, and an eccentric wheel inside the slide groove is fixedly connected to the output end of the motor. The eccentric wheel is slidably connected to the outer surface of the slider.
8. The land surveying auxiliary device for land use planning according to claim 7, characterized in that, The inlet of the first check valve is connected to the inside of the inner cylinder through a cavity and a through hole, and the outlet of the first check valve is connected to the inside of the piston cylinder. The inlet of the second check valve is connected to the inside of the piston cylinder, and the outlet of the second check valve is connected to the outside.
9. The land surveying auxiliary device for land use planning according to claim 1, characterized in that, A handle is fixedly connected to the upper surface of the housing, and a pointed tip is fixedly connected to the bottom surface of the housing.