Land area measuring device
The land area measuring device addresses the issue of inaccurate data due to wheel rotation under inertia by using a stop assembly with clamping and limiting mechanisms to ensure precise measurements.
Patent Information
- Application Number
- CN202422783804.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-11-15
AI Technical Summary
Existing wheeled distance meters continue to rotate due to inertia when suspended in the air, leading to inaccurate measurement data due to continued data collection during wheel suspension.
A land area measuring device with a stop assembly comprising a clamping mechanism, adjusting mechanism, and limiting mechanism to prevent the measuring wheel from rotating when lifted, using blocks, L-shaped rods, rotating disks, and tension springs to adjust and limit the position of the clamping mechanism.
Prevents the measuring wheel from rotating under inertia, ensuring accurate measurement data by allowing manual adjustment and limiting the wheel's rotation, thereby improving measurement accuracy.
Smart Images
Figure CN222211735U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of measuring equipment, and more specifically to a land area measuring device. Background Art
[0002] There are many types of land area measurement devices, each with its specific purpose and accuracy requirements. Common land area measurement devices include: wheeled distance meter, GPS measurement equipment, total station, laser distance meter, etc. Among them, wheeled distance meter is widely used by personnel because of its moderate price and convenient operation.
[0003] When the staff uses the wheeled distance meter, when they encounter uneven potholes or obstacles, they need to pick up the wheeled distance meter and cross the potholes and continue to push it to make it work. However, in the existing wheeled distance meter, when the measuring wheel is suspended in the air, it will continue to rotate under the action of inertia, and the recorder will continue to collect and record the data at this time, resulting in a large error between the final collected data and the real data, poor use effect, and insufficient accuracy of the measurement results. Based on this, we proposed a land area measurement device. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a land area measuring device to solve the problem that after the measuring wheel of the existing wheel-type distance meter in the above-mentioned background technology is suspended in the air, the measuring wheel will continue to rotate under the action of inertia, thereby causing the final collected data to have a large error compared with the real data.
[0005] The utility model provides the following technical solutions:
[0006] A land area measuring device comprises a bracket, the lower end of the bracket is rotatably connected to a distance measuring wheel, a telescopic rod is arranged above the bracket, the bottom end of the telescopic rod is fixedly connected to the peripheral side of the bracket, a digital display is fixedly installed on the top end of the telescopic rod, a handle is fixedly installed on the digital display, and a stop assembly for stopping the distance measuring wheel from rotating is installed on the bracket;
[0007] The stop assembly includes a clamping mechanism, an adjusting mechanism, and a limiting mechanism. The adjusting mechanism is connected to the clamping mechanism for adjusting the position of the clamping mechanism, and the limiting mechanism is connected to the clamping mechanism for limiting the state of the adjusting mechanism.
[0008] Preferably, the clamping mechanism includes a block and an L-shaped rod, the number of the blocks is two, and the two blocks are respectively located on two opposite sides of the distance measuring wheel. The number of the L-shaped rods is two, and one end of the L-shaped rod is fixedly connected to the side wall of the corresponding block. The side of the bracket away from the distance measuring wheel is fixedly connected to a protective box, and two through holes are provided on both sides of the protective box. The other end of the L-shaped rod slides through the through hole and extends into the protective box.
[0009] Preferably, the adjustment mechanism includes a connecting column, a rotating disk, and a rotating groove. The number of the connecting columns is two, and the connecting column is located in the protective box. One end of the connecting column is fixedly connected to the side wall of the L-shaped rod. The end of the bracket away from the distance measuring wheel is rotatably connected to a rotating shaft, and the rotating shaft passes through the rotating disk and extends to the outside. The rotating disk is coaxial with the rotating shaft and is fixedly connected. The rotating disk is located in the protective box. The number of the rotating grooves is two, and the two rotating grooves are symmetrically arranged on both sides of the rotating disk, and each rotating groove is arc-shaped. The connecting column can slidably extend into the inner wall of the corresponding rotating groove for sliding connection, and the protective box is away from the bracket. Two limiting grooves are provided on one side of the frame, the connecting column passes through the rotating groove and extends into the connecting column, the connecting column and the corresponding limiting groove can slide relative to each other, a protective cover is fixedly connected to the side of the protective box away from the bracket, the other end of the rotating shaft is fixedly connected to the inner wall of the protective cover, a gear is fixedly connected to the rotating shaft, the gear is located in the protective cover, a rack is provided on one side of the gear, the rack is meshed with the gear, sliding blocks are fixedly connected on both sides of the rack, the rack and the sliding block are combined into a T-shaped assembly, a slide rail is fixedly connected to the inner wall of the protective cover, a T-shaped slot is provided on the slide rail, and the T-shaped assembly is slidably connected to the slide rail.
[0010] Preferably, the limiting mechanism includes a fixed block and a first tension spring, the fixed block is located in the protective cover, the fixed block is fixedly connected to the inner wall of the protective cover, the first tension spring is located below the rack, one end of the first tension spring is fixedly connected to the top surface of the fixed block, the other end of the first tension spring is fixedly connected to the bottom end of the rack, one side of the rack is fixedly connected to the limiting rod, the side wall of the protective cover is provided with a sliding groove, the limiting rod is slidably connected to the inner wall of the sliding groove, the outer side wall of the protective cover is fixedly connected to the limiting block, the limiting block is slidably connected with the sliding rod, the side wall of the limiting block is fixedly connected to the second tension spring, the other end of the second tension spring is fixedly connected to the circular block, the second tension spring is sleeved outside the sliding rod, the circular block is fixedly connected to one end of the sliding rod, and the bottom surface of the limiting rod is against the top surface of the sliding rod.
[0011] Preferably, the clamping block is of a special shape, a concave groove matching the distance measuring wheel is formed on a side of the clamping block close to the distance measuring wheel, and the groove surface of the clamping block is a rough surface.
[0012] Preferably, a pointer is installed on the side of the distance measuring wheel away from the bracket.
[0013] Technical effects and advantages of the utility model:
[0014] 1. The utility model provides a clamping mechanism and an adjusting mechanism, so that personnel can change the rotation angle of the rotating disk by adjusting the height of the rack, thereby adjusting the distance between the clamping block and the distance measuring wheel, making it convenient for personnel to limit the distance measuring wheel, and preventing the distance measuring wheel from continuing to rotate under the action of inertia after being suspended in the air, thereby affecting the measurement accuracy.
[0015] 2. The utility model provides a limiting mechanism so that personnel can limit the height of the rack by means of a sliding rod and a limiting rod, thereby limiting the position of the card block, making it convenient for personnel to change the distance between the card block and the distance measuring wheel according to usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;
[0017] Figure 2 The overall structure of the utility model is shown in FIG. Figure 2 ;
[0018] Figure 3 This is a schematic diagram of the explosion structure of the stop assembly of the utility model;
[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the protective box area of the utility model Figure 1 ;
[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of the protective box area of the utility model Figure 2 ;
[0021] Figure 6 This is a schematic diagram of the explosion structure of the gear area of the utility model.
[0022] The accompanying drawings are marked as follows: 1. distance measuring wheel; 2. bracket; 3. telescopic rod; 4. digital display; 5. handle; 6. pointer; 7. block; 8. L-shaped rod; 9. protective box; 10. through hole; 11. connecting column; 12. rotating disk; 13. rotating groove; 14. limiting groove; 15. rotating shaft; 16. protective cover; 17. gear; 18. rack; 19. sliding block; 20. slide rail; 21. fixed block; 22. first tension spring; 23. limiting rod; 24. limiting block; 25. sliding rod; 26. second tension spring; 27. circular block; 28. sliding groove. DETAILED DESCRIPTION
[0023] The present invention is further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement schemes or common means, they are no longer described in detail herein, but still fall within the scope of protection of the present application.
[0024] Figure 1 - Figure 6 It is the best embodiment of the utility model, and the following Figure 1 - Figure 6 The utility model is further described.
[0025] Refer to the attached Figure 1-Figure 6 A land area measuring device includes a bracket 2, the lower end of the bracket 2 is rotatably connected to a measuring wheel 1, a telescopic rod 3 is arranged above the bracket 2, the bottom end of the telescopic rod 3 is fixedly connected to the peripheral side of the bracket 2, a digital display 4 is fixedly installed on the top of the telescopic rod 3, a handle 5 is fixedly installed on the digital display 4, and a stop assembly for stopping the rotation of the measuring wheel 1 is installed on the bracket 2.
[0026] The stop assembly includes a clamping mechanism, an adjusting mechanism, and a limiting mechanism. The adjusting mechanism is connected to the clamping mechanism for adjusting the position of the clamping mechanism, and the limiting mechanism is connected to the clamping mechanism for limiting the state of the adjusting mechanism.
[0027] Furthermore, the clamping mechanism includes a block 7 and an L-shaped rod 8. There are two blocks 7, which are respectively located on opposite sides of the distance measuring wheel 1. There are two L-shaped rods 8, one end of the L-shaped rod 8 is fixedly connected to the side wall of the corresponding block 7. A protective box 9 is fixedly connected to the side of the bracket 2 away from the distance measuring wheel 1. Through holes 10 are provided on both sides of the protective box 9. The other end of the L-shaped rod 8 slides through the through hole 10 and extends into the protective box 9.
[0028] Furthermore, the adjustment mechanism includes a connecting column 11, a rotating disk 12, and a rotating groove 13. The number of the connecting columns 11 is two, and the connecting columns 11 are located in the protective box 9. One end of the connecting column 11 is fixedly connected to the L-shaped rod 8. The end of the bracket 2 away from the measuring wheel 1 is rotatably connected to the rotating shaft 15, and the rotating shaft 15 passes through the rotating disk 12 and extends to the outside. The rotating disk 12 is coaxial with the rotating shaft 15 and is fixedly connected. The rotating disk 12 is located in the protective box 9. The number of the rotating grooves 13 is two, and the two rotating grooves 13 are symmetrically arranged on both sides of the rotating disk 12, and each rotating groove 13 is arc-shaped. The connecting column 11 can be slidably extended into the corresponding rotating groove 13. Two limiting grooves 14 are provided on the side of the protective box 9 away from the bracket 2. The connecting column 11 passes through The rotating groove 13 extends into the connecting column 11, and the connecting column 11 and the corresponding limiting groove 14 can slide relative to each other. A protective cover 16 is fixedly connected to the side of the protective box 9 away from the bracket 2. The other end of the rotating shaft 15 is fixedly connected to the inner wall of the protective cover 16. A gear 17 is fixedly connected to the rotating shaft 15. The gear 17 is located in the protective cover 16. A rack 18 is provided on one side of the gear 17. The rack 18 is meshed with the gear 17. Sliding blocks 19 are fixedly connected on both sides of the rack 18. The rack 18 and the sliding block 19 are combined into a T-shaped component. A slide rail 20 is fixedly connected to the inner wall of the protective cover 16. A T-slot is provided on the slide rail 20. The T-shaped component is slidably connected to the T-slot of the slide rail 20, which is convenient for limiting the rack 18 and preventing the rack 18 from falling off.
[0029] Furthermore, the limiting mechanism includes a fixed block 21 and a first tension spring 22. The fixed block 21 is located in the protective cover 16, and the fixed block 21 is fixedly connected to the inner wall of the protective cover 16. The first tension spring 22 is located below the rack 18, and one end of the first tension spring 22 is fixedly connected to the top surface of the fixed block 21, and the other end of the first tension spring 22 is fixedly connected to the bottom end of the rack 18. One side of the rack 18 is fixedly connected to a limiting rod 23. A sliding groove 28 is provided on the side wall of the protective cover 16, and the limiting rod 23 is slidably connected to the inner wall of the sliding groove 28. The outer wall of the shield 16 is fixedly connected to a limit block 24, a sliding rod 25 is slidably connected inside the limit block 24, a second tension spring 26 is fixedly connected to the side wall of the limit block 24, the other end of the second tension spring 26 is fixedly connected to a circular block 27, the second tension spring 26 is sleeved outside the sliding rod 25, the circular block 27 is fixedly connected to one end of the sliding rod 25, the bottom surface of the limit rod 23 is against the top surface of the sliding rod 25, so that personnel can limit the height of the rack 18 by the sliding rod 25 and the limit rod 23, thereby limiting the position of the blocking block 7.
[0030] Furthermore, the block 7 is of a special shape, and a concave groove matching the distance measuring wheel 1 is provided on one side of the block 7 close to the distance measuring wheel 1. The groove surface of the block 7 is a rough surface, which is convenient for increasing the friction force when the block 7 and the distance measuring wheel 1 are against each other, thereby stopping the distance measuring wheel 1.
[0031] Furthermore, a pointer 6 is installed on a side of the distance measuring wheel 1 away from the bracket 2 .
[0032] Working principle: when a person needs to pick up the device, he first moves the circular block 27 away from the limit block 24. At this time, the circular block 27 drives the sliding rod 25 to move and stretches the second tension spring 26. The sliding rod 25 is separated from the limit rod 23 and no longer resists each other. The sliding rod 25 cancels the limit on the limit rod 23. At this time, the stretched first tension spring 22 drives the rack 18 to move downward. At this time, the circular block 27 can be released, and the stretched second tension spring 26 rebounds to reset the sliding rod 25.
[0033] The rack 18 and the sliding block 19 slide in the slide rail 20, and the rack 18 moves downward to drive the gear 17 meshing therewith to rotate, and the gear 17 drives the rotating shaft 15 to rotate, and the rotating shaft 15 drives the rotating disk 12 to rotate, and the rotation of the rotating disk 12 drives the connecting column 11 in the rotating groove 13 to move. Since the connecting column 11 is located in the limiting groove 14, the two connecting columns 11 will move in the direction close to the rotating shaft 15 at this time. At this time, the two connecting columns 11 respectively drive the corresponding L-shaped rods 8 to move in the direction close to the rotating shaft 15, so that the distance between the two L-shaped rods 8 becomes smaller, and the L-shaped rod 8 drives the block 7 to move in the direction close to the distance measuring wheel 1, so that the groove surface of the block 7 is against the peripheral side of the distance measuring wheel 1, and the block 7 limits the distance measuring wheel 1 so that the distance measuring wheel 1 will not continue to rotate due to inertia, and the personnel can pick up the wheel type distance meter to cross the uneven place.
[0034] When the personnel put down the device and need to continue measuring, the personnel first move the circular block 27 in the direction away from the limit block 24. At this time, the circular block 27 drives the sliding rod 25 to move and stretch the second tension spring 26, and then pulls the limit rod 23 upward, so that the limit rod 23 drives the rack 18 to move upward, the rack 18 moves upward and stretches the first tension spring 22 upward, the rack 18 moves upward and drives the gear 17 to rotate in the opposite direction, the gear 17 drives the rotating shaft 15 to rotate, the rotating shaft 15 drives the rotating disk 12 to rotate in the opposite direction, and the rotating disk 12 rotates and drives the connecting column 11 in the rotating groove 13 to move. Since the connecting column 11 is located in the limit groove 14, the two The connecting column 11 will move in the direction away from the rotating shaft 15. At this time, the two connecting columns 11 respectively drive the corresponding L-shaped rods 8 to move in the direction away from the rotating shaft 15, so that the distance between the two L-shaped rods 8 becomes larger, and the L-shaped rod 8 drives the block 7 to move in the direction away from the measuring wheel 1, so that the groove surface of the block 7 does not abut against the peripheral side of the measuring wheel 1. When the limit rod 23 abuts against the top of the inner wall of the sliding groove 28, the person releases the circular block 27, and the stretched second tension spring 26 rebounds to reset the sliding rod 25. At this time, the top surface of the sliding rod 25 abuts against the bottom surface of the limit rod 23, and the sliding rod 25 limits the limit rod 23, and the person can push the device normally.
[0035] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.
Claims
1. A land area measuring device, comprising a bracket (2), characterized in that: The lower end of the bracket (2) is rotatably connected to a distance measuring wheel (1); a telescopic rod (3) is arranged above the bracket (2); the bottom end of the telescopic rod (3) is fixedly connected to the peripheral side of the bracket (2); a digital display (4) is fixedly mounted on the top end of the telescopic rod (3); a handle (5) is fixedly mounted on the digital display (4); and a stop assembly for stopping the distance measuring wheel (1) from rotating is mounted on the bracket (2); The stop assembly includes a clamping mechanism, an adjusting mechanism, and a limiting mechanism. The adjusting mechanism is connected to the clamping mechanism for adjusting the position of the clamping mechanism, and the limiting mechanism is connected to the clamping mechanism for limiting the state of the adjusting mechanism.
2. A land area measuring device according to claim 1, characterized in that: The clamping mechanism comprises a clamping block (7) and an L-shaped rod (8). The number of the clamping blocks (7) is two, and the two clamping blocks (7) are respectively located on two opposite sides of the distance measuring wheel (1). The number of the L-shaped rod (8) is two, and one end of the L-shaped rod (8) is fixedly connected to the side wall of the corresponding clamping block (7). A protective box (9) is fixedly connected to the side of the bracket (2) away from the distance measuring wheel (1). Two through holes (10) are provided on both sides of the protective box (9), and the other end of the L-shaped rod (8) slides through the through hole (10) and extends into the protective box (9).
3. A land area measuring device according to claim 2, characterized in that: The adjustment mechanism comprises a connecting column (11), a rotating disk (12), and a rotating groove (13). The connecting column (11) is two in number and is located in the protective box (9). One end of the connecting column (11) is fixedly connected to the L-shaped rod (8). One end of the bracket (2) away from the distance measuring wheel (1) is rotatably connected to a rotating shaft (15). The rotating shaft (15) passes through the rotating disk (12) and extends to the outside. The rotating disk (12) is coaxial with the rotating shaft (15) and is fixedly connected. The rotating disk (12) is located in the protective box (9). The rotating groove (13) is two in number and is symmetrically arranged on both sides of the rotating disk (12). Each rotating groove (13) is arc-shaped. The connecting column (11) can be slidably inserted into the corresponding rotating groove (13). The side of the protective box (9) away from the bracket (2) is provided with two limit grooves ( 14), the connecting column (11) passes through the rotating groove (13) and extends into the connecting column (11), the connecting column (11) and the corresponding limiting groove (14) can slide relative to each other, the side of the protective box (9) away from the bracket (2) is fixedly connected to a protective cover (16), the other end of the rotating shaft (15) is fixedly connected to the inner wall of the protective cover (16), the rotating shaft (15) is fixedly connected to a gear (17), the gear (17) is located in the protective cover (16), a rack (18) is provided on one side of the gear (17), the rack (18) is meshed with the gear (17), sliding blocks (19) are fixedly connected on both sides of the rack (18), the rack (18) and the sliding block (19) are combined into a T-shaped component, the inner wall of the protective cover (16) is fixedly connected to a slide rail (20), the slide rail (20) is provided with a T-shaped slot, and the T-shaped component is slidably connected to the slide rail (20).
4. A land area measuring device according to claim 3, characterized in that: The limiting mechanism comprises a fixed block (21) and a first tension spring (22), wherein the fixed block (21) is located inside the protective cover (16), the fixed block (21) is fixedly connected to the inner wall of the protective cover (16), the first tension spring (22) is located below the rack (18), one end of the first tension spring (22) is fixedly connected to the top surface of the fixed block (21), the other end of the first tension spring (22) is fixedly connected to the bottom end of the rack (18), one side of the rack (18) is fixedly connected to a limiting rod (23), and a sliding groove (28) is provided on the side wall of the protective cover (16). The limit rod (23) is slidably connected to the inner wall of the sliding groove (28); the outer wall of the protective cover (16) is fixedly connected to the limit block (24); the sliding rod (25) is slidably connected inside the limit block (24); the side wall of the limit block (24) is fixedly connected to a second tension spring (26); the other end of the second tension spring (26) is fixedly connected to a circular block (27); the second tension spring (26) is sleeved outside the sliding rod (25); the circular block (27) is fixedly connected to one end of the sliding rod (25); and the bottom surface of the limit rod (23) abuts against the top surface of the sliding rod (25).
5. A land area measuring device according to claim 2, characterized in that: The clamping block (7) is of a special shape, and a concave groove matching the distance measuring wheel (1) is provided on a side of the clamping block (7) close to the distance measuring wheel (1), and the groove surface of the clamping block (7) is a rough surface.
6. A land area measuring device according to claim 1, characterized in that: A pointer (6) is mounted on the side of the distance measuring wheel (1) away from the bracket (2).