Offset device for real estate surveying and mapping

Abstract

The utility model belongs to the technical field of real estate surveying and mapping, and relates to a deviation device for real estate surveying and mapping, which comprises a bottom plate, two groups of moving wheels are mounted on each of two sides of the bottom plate, supporting columns are fixedly connected to four corners of the top of the bottom plate, a concentric-square-shaped plate is fixedly connected to the tops of the supporting columns, and sliding chutes are formed in two sides, close to each other, of the inner side of the concentric-square-shaped plate. And an offset assembly is mounted in the middle of the sliding groove. Through the arrangement of the offset assembly, the surveying instrument can be conveniently moved back and forth in a small range, so that when a complex landform environment occurs, due to the limitation of the surveying distance of the surveying instrument, surveying and mapping personnel can accurately measure the surveying and mapping data in order to obtain comprehensive, detailed and accurate landform data. Therefore, frequent movement and adjustment of the front-back position of the whole device are usually needed, but the operation is easy to cause the situations that the surveying and mapping time is delayed, the surveying and mapping operation complexity is increased and the surveying and mapping efficiency is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of real estate surveying technology and relates to an offset device for real estate surveying. Background Technology

[0002] Real estate surveying refers to the surveying of land, sea areas, and fixed structures such as houses and trees, providing surveying support and basic data for various real estate registration tasks. Based on the characteristics of different types of real estate, real estate surveying can be roughly divided into cadastral surveying, property surveying, marine cadastral surveying, forest cadastral surveying, grassland surveying, etc. When using surveying instruments for surveying operations, in order to ensure the accuracy and stability of the surveying results, a professional support system is usually provided. This support system not only provides solid support for the surveying instrument and effectively reduces errors caused by vibration or external interference, but also improves the safety and convenience of the operation process.

[0003] For example, patent (CN216977908U) discloses a horizontal offset device for real estate surveying instruments, which describes "an angle adjustment device, the top of which is fixedly connected to a fixed adjustment device. The use of a telescopic rod allows the fixed plate to move up and down, thereby allowing the equipment to be adjusted and fixed according to the height of the surveying instrument. The second connecting groove and the first connecting groove opened on the second connecting plate and the first connecting plate allow the operator to fix the surveying instrument at the rear end with bolts for a second time. This loading and unloading method is simple and quick, thereby improving the loading and unloading efficiency of the surveying instrument. The use of a rotating rod, a fine worm gear, a coarse worm gear, a fine worm, and a coarse worm allows the fine worm gear or the coarse worm to rotate by rotating the fine worm or the coarse worm, thereby causing the rotating rod to rotate and the surveying instrument connected to the first connecting plate to rotate, thereby allowing the equipment to adjust the horizontal angle of the surveying instrument."

[0004] When using the above technology, the following technical problems were found in the existing technology: When using the device, due to the limited horizontal surveying angle of the surveying instrument, when facing complex and ever-changing terrain environments, in order to obtain more comprehensive, detailed and accurate terrain data, surveyors often need to move and adjust the front and back positions of the surveying device within a small range. Moreover, due to the frequent movement and adjustment, it is easy to delay the surveying time, increase the complexity of the surveying operation and reduce the surveying efficiency. Utility Model Content

[0005] The technical problem this invention aims to solve is that, when using this device, due to the limited horizontal surveying angle of the surveying instrument, when facing complex and ever-changing terrain environments, surveyors often need to move and adjust the front and back positions of the surveying device within a small range in order to obtain more comprehensive, detailed and accurate terrain data. Moreover, the frequent movement and adjustment can easily lead to delays in surveying time, increased complexity of surveying operations and reduced surveying efficiency.

[0006] The present invention discloses an offset device for real estate surveying, comprising a base plate, two sets of moving wheels installed on both sides of the base plate, support columns fixedly connected to the four corners of the top of the base plate, a U-shaped plate fixedly connected to the top of the support columns, and sliding grooves opened on the two adjacent sides of the inner side of the U-shaped plate, with an offset component installed in the middle of the sliding groove.

[0007] The offset assembly includes a sliding plate, a mounting plate, a double-groove gear ring, a servo motor, and half gears. The sliding plate is slidably connected to the middle of the slide groove. The mounting plate is fixed to one side of the sliding plates that are close to each other. Two sets of double-groove gear rings are fixed to the bottom of the mounting plate. Half gears are meshed in the middle of the double-groove gear rings. Bearings are fixed to the middle of the half gears. A servo motor is installed and connected to one end of the bearing. A protective plate is provided below the loop plate. The servo motor is located below the loop plate through the protective plate. A fixing component is provided in the middle of the mounting plate.

[0008] The fixing assembly includes a bidirectional lead screw, a guide post, a fixing plate, a turntable, and a boss. The bidirectional lead screw is rotatably connected to both sides of the mounting plate. The two ends of the guide post are respectively fixed to the adjacent sides of the mounting plate. Two sets of fixing plates are slidably connected to the middle of the guide post. The other end of the fixing plate is threadedly connected to the bidirectional lead screw. One end of the bidirectional lead screw is fixed to the turntable, and the boss is fixed to the middle of the mounting plate.

[0009] A hollow disc is fitted at one end of the bearing, and inclined rods are fixed to both sides of the hollow disc. The top of the inclined rods is fixed to one side of the bottom of the U-shaped plate. An arc-shaped groove is opened in the middle of the hollow disc, and multiple sets of balls are rotatably connected in the middle of the arc-shaped groove.

[0010] Limiting rods are fixed to the bottom of both ends of the fixing plate, and limiting grooves are opened on both sides of the middle part of the mounting plate, with the limiting rods and limiting grooves fitting together.

[0011] Compared with the prior art, the beneficial effects of this utility model are: by setting the offset component, it can play the same role as moving the front and back positions of the small-range surveying instrument. When there is a complex terrain environment, it is no longer necessary to frequently move and adjust the front and back positions of the overall device, thus avoiding delays in surveying time, increased complexity of surveying operations, and decreased surveying efficiency caused by multiple position adjustments.

[0012] Furthermore, the fixed components facilitate the fixation of the surveying instrument, thereby improving the stability of its position and preventing changes in the surveying angle caused by shaking at the mounting plate, which could affect the normal progress of subsequent surveying work. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a structural schematic diagram of the protective plate of this utility model.

[0015] Figure 3 This is a cross-sectional structural diagram of the spiral plate of this utility model.

[0016] Figure 4 This is a cross-sectional structural diagram of the bearing of this utility model.

[0017] Figure 5 This is a structural schematic diagram of the fixing component of this utility model.

[0018] Figure 6 This is a cross-sectional view of the mounting plate of this utility model.

[0019] Figure 7 This is a cross-sectional structural diagram of the diagonal bar of this utility model.

[0020] In the diagram: 1. Base plate; 11. Caster wheel; 12. Support column; 13. U-shaped plate; 14. Slide groove; 15. Slide plate; 16. Mounting plate; 17. Double-sided grooved gear ring; 18. Servo motor; 19. Half gear; 111. Bearing; 2. Two-way lead screw; 21. Guide column; 22. Fixing plate; 23. Turntable; 24. Boss; 3. Diagonal bar; 31. Hollow disc; 32. Arc groove; 33. Ball bearing; 4. Limiting rod; 41. Limiting groove; 5. Protective plate. Detailed Implementation Example 1

[0021] like Figures 1-6 As shown, the device includes a base plate 1, with two sets of moving wheels 11 installed on both sides of the base plate 1. Support columns 12 are fixed to the four corners of the top of the base plate 1. A U-shaped plate 13 is fixed to the top of the multiple support columns 12. Symmetrical sliding grooves 14 are opened in the hollow part inside the U-shaped plate 13. Offset components are installed between the sliding grooves 14. The offset components can be used to adjust the front and back positions of the surveying instrument, thereby reducing the need to move the entire device and improving the efficiency of surveying work.

[0022] The offset assembly includes a slide plate 15, a mounting plate 16, a double-slotted gear ring 17, a servo motor 18, and a half gear 19. The slide plate 15 is slidably connected in the slide groove 14. The mounting plate 16 is fixed to one side of the two slide plates 15 that are close to each other. Two sets of double-slotted gear rings 17 are fixed to the bottom of the mounting plate 16. Half gears 19 are meshed inside the double-slotted gear rings 17. Bearings 111 are fixed to the middle of the half gears 19. The servo motor 18 is installed and connected to one end of the bearing 111. A protective plate 5 is provided below the loop plate 13. The servo motor 18 is set below the loop plate 13 through the protective plate 5. A fixing component is provided in the middle of the mounting plate 16.

[0023] When surveying real estate, the surveying instrument can be installed on the mounting plate 16. Then, the support column 12 is pulled to move the U-shaped plate 13, the moving wheel 11, and the base plate 1. The moving wheel 11 will rub against the ground during movement, thus rolling and improving the efficiency of moving the U-shaped plate 13. After the entire device is moved to the appropriate position, the surveying instrument can be used for surveying. When the position of the surveying instrument needs to be shifted forward or backward due to environmental or topographical influences to obtain more comprehensive data, the servo motor 18 can be driven to rotate the bearing 111. The rotation of the bearing 111 will drive the half gear 19 to rotate. When the half gear 19 rotates to the upper half turn, it will mesh with the teeth on the upper side of the double-grooved gear ring 17, thereby pushing the double-grooved gear ring 17 to translate in the direction of tooth rotation. Because the double-grooved gear ring 17 is fixedly connected to the mounting plate 16, the movement of the double-grooved gear ring 17 will drive the support column 16 to move the base plate 16. The mounting plate 16 moves synchronously, and the movement of the mounting plate 16 will cause the sliding plate 15 to slide at the sliding groove 14, thereby changing the position of the surveying instrument at the mounting plate 16. When the half gear 19 rotates to the lower half turn, it will mesh with the teeth on the lower side of the double-sided grooved gear ring 17, thereby pushing the double-sided grooved gear ring 17 and the mounting plate 16 to translate in the opposite direction of the initial direction. In this way, the servo motor 18 can be controlled according to the actual situation to adjust the front and back position of the surveying instrument. This step, through the setting of the offset component, can facilitate the small-range movement of the front and back position of the surveying instrument, thereby preventing the situation where, in complex terrain environments, due to the limitation of the surveying distance of the surveying instrument, surveyors usually need to frequently move and adjust the front and back position of the entire device in order to obtain comprehensive, detailed and accurate terrain data. However, this operation can easily cause delays in surveying time, increase the complexity of surveying operations and reduce surveying efficiency.

[0024] The top of the protective plate 5 is fixed to one side of the bottom of the U-shaped plate 13. The protective plate 5 serves to support the servo motor 18 and provide a relatively stable support force for the servo motor 18, thereby cooperating with the offset component to adjust the position of the surveying instrument. Example 2

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 As shown, the fixing assembly includes a bidirectional lead screw 2, a guide post 21, a fixing plate 22, a turntable 23, and a boss 24. The bidirectional lead screw 2 is rotatably connected to both sides of the mounting plate 16. The two ends of the guide post 21 are respectively fixed to the adjacent sides of the mounting plate 16. Two fixing plates 22 are slidably connected to the middle of the guide post 21. The other end of the fixing plate 22 is threadedly connected to the bidirectional lead screw 2. One end of the bidirectional lead screw 2 is fixed to the turntable 23. The boss 24 is fixed to the upper surface of the mounting plate 16 between the two fixing plates 22.

[0026] When the surveying instrument is placed on the mounting plate 16, it is positioned in the middle of the boss 24. Then, the turntable 23 is rotated, which drives the bidirectional lead screw 2 to rotate at the mounting plate 16. The rotation of the bidirectional lead screw 2 will cause the fixing plate 22 to move. At this time, the fixing plate 22 is forced to change its movement trajectory due to the restriction of the guide post 21, so that the fixing plate 22 slides along the guide post 21. Due to the opposite direction of the threads at both ends of the bidirectional lead screw 2, the two sets of fixing plates 22 will move closer to each other when moving, so as to clamp and fix the surveying instrument at the boss 24. This step, through the setting of the fixing components, can facilitate the fixing of the surveying instrument, thereby improving the stability of the surveying instrument's position. At the same time, it can reduce the impact of the movement of the surveying instrument when driving the offset component, which may cause the surveying instrument to shake at the mounting plate 16, thereby causing the surveying angle to change and affecting the normal progress of subsequent surveying work.

[0027] Limiting rods 4 are fixed to the bottom of both ends of the fixed plate 22. Limiting grooves 41 are opened on both sides of the middle of the mounting plate 16. The size of the limiting rods 4 and the limiting grooves 41 are matched. When the fixed plate 22 moves, it will drive the limiting grooves 41 to move synchronously. During the movement, the limiting grooves 41 will slide along the limiting rods 4. This step, through the cooperation of the limiting rods 4 and the limiting grooves 41, can play a role in assisting to support the fixed plate 22 and further limiting the movement trajectory of the fixed plate 22, thereby improving the stability of the fixed plate 22 when it moves and thus strengthening its fixing effect. Example 3

[0028] like Figure 4 , Figure 7 As shown, a hollow disc 31 is fitted onto one end of the bearing 111. Diagonal rods 3 are fixed to both sides of the hollow disc 31. The top of the diagonal rods 3 is fixed to the bottom of the U-shaped plate 13. An arc-shaped groove 32 is opened in the middle of the hollow disc 31. Multiple sets of balls 33 are rotatably connected in the middle of the arc-shaped groove 32. The diagonal rods 3 and the hollow disc 31 cooperate to support the bearing 111.

[0029] When the servo motor 18 drives the bearing 111 to rotate, one end of the bearing 111 will rotate on the inner wall of the hollow disk 31 and will come into contact with the ball 33 and form friction. Under the action of friction, the ball 33 can be driven to rotate in the middle of the arc groove 32. This step, through the cooperation of the inclined rod 3 and the hollow disk 31, can provide a certain support force for the bearing 111, thereby improving the stability and reliability of the bearing 111. Through the setting of the arc groove 32 and the ball 33, the friction between the bearing 111 and the inner wall of the hollow disk 31 can be reduced when the bearing 111 rotates, thereby improving the smoothness of the bearing 111's rotation and reducing the torque required to be output by the servo motor 18.

[0030] The usage process of the offset device for real estate surveying provided by this utility model is as follows: When it is necessary to survey real estate, the surveying instrument can be installed on the mounting plate 16 first. Then, the support column 12 is pulled to move the U-shaped plate 13, the moving wheel 11 and the base plate 1. The moving wheel 11 will rub against the ground when moving, thereby rolling and improving the efficiency of moving the U-shaped plate 13. After the entire device is moved to a suitable position, the surveying instrument can be used for surveying. When the position of the surveying instrument needs to be offset forward or backward due to the influence of the environment and terrain to obtain more comprehensive data, the servo motor 18 can be driven to drive the bearing 111 to rotate. The rotation of the bearing 111 will drive the half gear 19 to rotate. When the gear 19 rotates to the upper half-turn, it will mesh with the teeth on the upper side of the double-grooved gear ring 17, thereby pushing the double-grooved gear ring 17 to translate in one direction. Because the double-grooved gear ring 17 and the mounting plate 16 are fixed to each other, the movement of the double-grooved gear ring 17 will drive the mounting plate 16 to move synchronously. The movement of the mounting plate 16 will drive the slide plate 15 to slide along the slide groove 14, thereby changing the position of the surveying instrument set on the mounting plate 16. When the half gear 19 rotates to the lower half-turn, it will mesh with the teeth on the lower side of the double-grooved gear ring 17, thereby pushing the double-grooved gear ring 17 and the mounting plate 16 to translate in another direction. Through this structure, the servo motor 18 can be controlled according to the actual situation to adjust the front and rear position of the surveying instrument.

[0031] By setting the offset component, it can achieve the same effect as moving the surveying instrument back and forth within a small range. When encountering complex terrain environments, it is no longer necessary to frequently move and adjust the overall position of the device. This avoids delays in surveying time, increased complexity of surveying operations, and decreased surveying efficiency caused by repeated position adjustments.

[0032] The protective plate 5 serves to support the servo motor 18. By opening the protective plate 5, a relatively stable support force can be provided for the servo motor 18, which can be used in conjunction with the offset component to adjust the position of the surveying instrument. When the surveying instrument is placed on the mounting plate 16, it can be placed in the middle of the boss 24. Then, the turntable 23 is rotated, which drives the bidirectional lead screw 2 to rotate at the mounting plate 16. The rotation of the bidirectional lead screw 2 will drive the fixed plate 22 to move. At this time, the fixed plate 22 is forced to change its movement trajectory due to the restriction of the guide post 21, so that the fixed plate 22 slides along the guide post 21. Due to the opposite direction of the threads at both ends of the bidirectional lead screw 2, the two sets of fixed plates 22 will move closer to each other when moving, which can clamp and fix the surveying instrument at the boss 24.

[0033] By setting up the fixing components, the surveying instrument can be easily fixed, thereby improving the stability of the surveying instrument's position and preventing changes in its surveying angle due to shaking at the mounting plate, which could affect the normal progress of subsequent surveying work.

[0034] When the fixed plate 22 moves, it will drive the limiting groove 41 to move synchronously. During the movement, the limiting groove 41 will slide along the limiting rod 4. This step, through the cooperation of the limiting rod 4 and the limiting groove 41, can play a role in assisting the support of the fixed plate 22 and limiting the movement trajectory of the fixed plate 22 again, thereby improving the stability of the fixed plate 22 during movement and strengthening its fixing effect. The cooperation of the inclined rod 3 and the hollow disc 31 can play a role in supporting the bearing 111. When the servo motor 18 drives the bearing 111 to rotate, one end of the bearing 111 will rotate on the inner wall of the hollow disc 31 and will come into contact with the ball 33 and form friction. Under the action of friction, the ball 33 can be driven to rotate in the middle of the arc groove 32.

[0035] The cooperation between the inclined rod 3 and the hollow disk 31 provides a certain support force for the bearing 111, thereby improving the stability and reliability of the bearing 111. The arrangement of the arc groove 32 and the ball 33 reduces the friction between the bearing 111 and the inner wall of the hollow disk 31 when the bearing 111 rotates, thereby improving the smoothness of the bearing 111's rotation and reducing the torque required by the servo motor 18.

[0036] The descriptions of the orientation and relative positional relationships of the structure in this utility model, such as descriptions of front, back, left, right, up, and down, do not constitute a limitation on this utility model, but are merely for the convenience of description.

Claims

1. A offset device for real estate surveying, characterized in that: Includes a base plate (1), on both sides of the base plate (1) are two sets of moving wheels (11), and support columns (12) are fixed at the four corners of the top of the base plate (1). A spiral plate (13) is fixed at the top of the support column (12). A sliding groove (14) is opened on the two sides of the inner side of the spiral plate (13) that are close to each other. An offset component is installed in the middle of the sliding groove (14). The offset assembly includes a sliding plate (15), a mounting plate (16), a double-groove toothed ring (17), a servo motor (18), and a half gear (19). The sliding plate (15) is slidably connected to the middle of the slide groove (14). The mounting plate (16) is fixed to one side of the sliding plate (15) that is close to each other. Two sets of double-groove toothed rings (17) are fixed to the bottom of the mounting plate (16). Half gears (19) are meshed in the middle of the double-groove toothed rings (17). Bearings (111) are fixed to the middle of the half gears (19). The servo motor (18) is installed and connected to one end of the bearing (111). A protective plate (5) is provided below the spiral plate (13). The servo motor (18) is set below the spiral plate (13) through the protective plate (5). A fixing assembly is provided in the middle of the mounting plate (16).

2. The offset device for real estate surveying according to claim 1, characterized in that: The fixing assembly includes a bidirectional lead screw (2), a guide post (21), a fixing plate (22), a turntable (23), and a boss (24). The bidirectional lead screw (2) is rotatably connected to both sides of the mounting plate (16). The two ends of the guide post (21) are respectively fixed to the sides of the mounting plate (16) that are close to each other. Two sets of fixing plates (22) are slidably connected in the middle of the guide post (21). The other end of the fixing plate (22) is threadedly connected to the bidirectional lead screw (2). The turntable (23) is fixed to one end of the bidirectional lead screw (2). The boss (24) is fixed to the middle of the mounting plate (16).

3. The offset device for real estate surveying according to claim 1, characterized in that: A hollow disc (31) is fitted at one end of the bearing (111). A diagonal rod (3) is fixed to both sides of the hollow disc (31). The top of the diagonal rod (3) is fixed to one side of the bottom of the spiral plate (13). A forked arc groove (32) is opened in the middle of the hollow disc (31). Multiple sets of balls (33) are rotatably connected in the middle of the arc groove (32).

4. The offset device for real estate surveying according to claim 2, characterized in that: Limiting rods (4) are fixed to the bottom of both ends of the fixing plate (22), and limiting grooves (41) are opened on both sides of the middle part of the mounting plate (16). The limiting rods (4) and the limiting grooves (41) fit together.

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