Multifunctional urban and rural planning positioning measurement auxiliary device

Abstract

This invention relates to the field of urban and rural planning surveying technology, and discloses a multifunctional urban and rural planning positioning and surveying auxiliary device, including a pole body. A marking component is provided at the bottom of the pole body. The marking component includes a hollow rod with a first cavity inside. A plaster rod is placed inside the first cavity. A base is slidably sleeved at the bottom of the hollow rod. A rotating ring is rotatably connected inside the hollow rod, and two sets of steel needles are installed on the rotating ring. A locking component is provided on the outer wall of the hollow rod. Through the marking component, workers can drive the rotating ring and steel needles to rotate and grind the plaster rod by pressing the pole body during the layout and positioning operation. The resulting plaster powder falls precisely to the ground through the through holes of the base and the rotating ring. Compared with the traditional method of manually sprinkling plaster powder, this simplifies the operation process of marking points in urban and rural planning surveying and improves the accuracy of the marked positions.

Description

Technical Field

[0001] This invention relates to the field of urban and rural planning surveying technology, and specifically to a multifunctional urban and rural planning positioning and surveying auxiliary device. Background Technology

[0002] Urban and rural planning positioning surveying is a core foundational operation for urban and rural spatial layout, project site selection, and engineering layout. It provides accurate spatial coordinates for the implementation of urban and rural construction planning. The operation requires the use of various high-precision measuring devices. Among them, RTK real-time dynamic positioning technology has become the mainstream equipment due to its centimeter-level positioning accuracy. It is widely used in practical operations such as field data collection, point layout, and line positioning in urban and rural planning. It can quickly complete the acquisition of survey point coordinates and on-site calibration of planning points.

[0003] Chinese patent CN210864052U discloses "An RTK Measurement Device," comprising an RTK body, a support platform at the bottom of the RTK body, and a support member at the bottom of the support platform. The support member includes a connecting rod and a bottom rod. The connecting rod includes a sleeve and an extension rod. The sleeve is fixedly connected to the bottom of the support platform, and the extension rod is slidably connected inside the sleeve. A screw passes through the outer wall of the sleeve and abuts against the outer wall of the extension rod. A groove is formed on the side wall of the end of the extension rod facing the ground. The end of the bottom rod near the extension rod abuts against the groove, and the end of the bottom rod away from the extension rod is provided with an abutment device. This patent has the effect of being convenient for people of different heights to use.

[0004] However, the existing technology has the following problems: In existing RTK surveying equipment, the ground marking of the calibrated survey points is usually done by manually sprinkling plaster powder during the line setting and positioning operation, so as to achieve the visual preservation of the planned points. However, the manual powder sprinkling operation is cumbersome and inefficient. The marking accuracy is greatly affected by human factors and is prone to point deviation. At the same time, the plaster powder is easy to adhere to the workers and cause pollution. Summary of the Invention

[0005] The purpose of this invention is to provide a multifunctional urban and rural planning positioning and measurement auxiliary device to solve the above-mentioned problems. It aims to overcome the shortcomings of the existing technology, such as the cumbersome and inefficient manual powdering operation, the large influence of human factors on the marking accuracy, and the easy occurrence of point offset. Details are described below.

[0006] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a multifunctional urban and rural planning positioning and measurement auxiliary device, comprising a pole body, a marking assembly at the bottom of the pole body, the marking assembly including a hollow pole, a first cavity within the hollow pole, a plaster rod within the first cavity, a base slidably sleeved at the bottom of the hollow pole, a rotating ring rotatably connected within the hollow pole, two sets of steel needles mounted on the rotating ring, and a smooth rod mounted on the base. When the base is pressed, the smooth rod drives the rotating ring to rotate, causing the steel needles to grind plaster powder from the bottom of the plaster rod, which is then sprinkled onto the ground for marking. A locking assembly is provided on the outer wall of the hollow pole body to lock the base when the pole body is tilted, preventing the base from pressing down and triggering the marking action.

[0007] Preferably, a pressure block is slidably connected inside the cavity rod, a first spring is provided between the pressure block and the inner wall of the cavity rod, a door for installing plaster rods is provided on the cavity rod, the two ends of the plaster rods abut against the pressure block and the steel needles respectively, a second spring is provided between the outer wall of the cavity rod and the base, and both the base and the rotating ring are provided with through holes for plaster powder to fall.

[0008] Preferably, the outer wall of the optical rod is provided with a spiral groove, the inner wall of the rotating ring is provided with a sliding tongue, the rotating ring is sleeved on the outer wall of the optical rod, and the sliding tongue is slidably connected to the spiral groove.

[0009] Preferably, the inner wall of the cavity rod is connected to a serrated ring, and an elastic sheet is connected through a group of steel needles, the elastic sheet contacting the serrated ring when moving.

[0010] Preferably, the cavity rod is provided with a crushing component, the crushing component includes a perforated ring, the perforated ring is connected to the bottom of the cavity rod, the perforated ring is provided with multiple slots, the smooth rod passes through the perforated ring, multiple crushing rods are hinged to the perforated ring, and a connecting rod is hinged to the crushing rod, the end of the connecting rod away from the crushing rod is hinged to the outer wall of the smooth rod.

[0011] Preferably, the bottom of the crushing rod is provided with multiple spikes, and the multiple crushing rods are respectively located above multiple troughs.

[0012] Preferably, the locking assembly includes a locking ring rotatably connected to the outer wall of the cavity rod. The locking ring has two slots, and the base is connected to two abutment rods. The top ends of the two abutment rods can pass through the two slots of the locking ring, respectively. A grooved ring is connected to the locking ring. A second cavity is provided inside the cavity rod, and a steel ball is provided inside the second cavity. A sliding rod is vertically slidably connected to the top of the second cavity, and the bottom of the sliding rod abuts against the steel ball. Two sliding shafts are connected to the sliding rod. Two arc-shaped grooves are provided on the inner wall of the grooved ring, and the two sliding shafts are slidably connected to the two arc-shaped grooves, respectively. When the sliding rod moves vertically, it drives the grooved ring to rotate through the two sliding shafts.

[0013] Preferably, the bottom of the second cavity is provided with a slope. When the inclination angle of the cavity rod is less than 3 degrees, the steel ball is guided to roll to the center position of the second cavity by the slope. The bottom of the slide rod is provided with a hemispherical shape.

[0014] Preferably, the grooved ring has a buckle groove, and the hollow rod is hinged with a buckle rod, which can be embedded in the buckle groove.

[0015] The beneficial effects are: 1. This multifunctional urban and rural planning positioning and measurement auxiliary device, through the setting of the marking component, allows workers to drive the rotating ring and steel needle to rotate and grind the plaster rod by pressing the rod body during the line setting operation. The resulting plaster powder falls accurately to the ground through the through holes of the base and the rotating ring. This achieves the technical effect of integrating the line setting and positioning function into the measuring rod body. Compared with the traditional method of manually sprinkling plaster powder, it simplifies the operation process of urban and rural planning measurement marking points, improves the accuracy of the marked position, and avoids plaster powder adhering to the workers and causing pollution, thus meeting the efficiency and cleanliness requirements of RTK measurement operations.

[0016] 2. This multifunctional urban and rural planning positioning and measurement auxiliary device, through the setting of the crushing component, allows the hole ring groove to be exposed and intercepted when the pressing rod triggers the marking component. When the rod is released and reset, the crushing rod swings downward under the thrust of the connecting rod, and the spike at its bottom can crush the plaster block on the groove, causing the plaster block to break into small particles and fall to the ground with the powder, making the measurement mark more conspicuous and clear. At the same time, it avoids plaster block blocking the through hole, further improving the device's adaptability to working conditions and marking effect.

[0017] 3. This multifunctional urban and rural planning positioning and measurement auxiliary device, through the setting of the locking component, enables the worker to automatically lock the contact rod when the rod body tilts more than 3 degrees during operation, preventing the cavity rod from being pressed down. After the verticality of the rod body is adjusted, it automatically engages the lock, and the marking component can then operate normally, avoiding inaccurate marking positions caused by marking when the rod body is tilted. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2This is a schematic diagram of the cavity rod structure of the present invention; Figure 3 This is a schematic diagram of the base structure of the present invention; Figure 4 This is a schematic diagram of the rotating ring structure of the present invention; Figure 5 This is a schematic diagram of the steel needle structure of the present invention; Figure 6 This is a schematic diagram of the crushing component structure of the present invention; Figure 7 This is a schematic diagram of the crusher rod structure of the present invention; Figure 8 This is a schematic diagram of the locking component structure of the present invention; Figure 9 This is a schematic diagram of the slide bar structure of the present invention; Figure 10 This is a schematic diagram of the sliding shaft structure of the present invention; Figure 11 This is a schematic diagram of the buckle structure of the present invention.

[0020] The annotations in the attached figures are explained as follows: 1. Rod body; 2. Punctuation component; 21. Cavity rod; 22. Base; 23. Smooth rod; 231. Spiral groove; 24. Rotary ring; 25. Steel needle; 26. Pressure block; 27. Serrated ring; 28. Elastic sheet; 3. Crushing assembly; 31. Hole ring; 32. Crushing rod; 33. Connecting rod; 4. Locking assembly; 41. Abutment rod; 42. Locking ring; 43. Groove ring; 431. Snap groove; 44. Slide rod; 45. Slide shaft; 46. Steel ball; 47. Snap rod; 5. Plaster sticks. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0022] In the following description, certain specific details are set forth for the purpose of illustrating various disclosed embodiments in order to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the art will recognize that embodiments may be practiced without one or more of these specific details. In other instances, well-known apparatuses, structures, and techniques associated with this application may not have been shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

[0023] Throughout this specification, references to "one embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Therefore, the appearance of "in one embodiment" or "in another embodiment" in various places throughout the specification does not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic may be combined in any manner in one or more embodiments.

[0024] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0025] In the description of this application, "multiple" means two or more, unless otherwise expressly and specifically defined.

[0026] Please see Figure 1 - Figure 5 In one embodiment: A multifunctional urban and rural planning positioning and measurement auxiliary device includes a pole 1, an RTK head mounted on the top of the pole 1, and a marking assembly 2 at the bottom of the pole 1. The marking assembly 2 includes a hollow rod 21, with a first cavity inside the hollow rod 21 containing a plaster rod 5. A base 22 is slidably sleeved at the bottom of the hollow rod 21. A rotating ring 24 is rotatably connected inside the hollow rod 21, with two sets of steel needles 25 mounted on the rotating ring 24. A smooth rod 23 is mounted on the base 22, with a spiral groove 231 on the outer wall of the smooth rod 23. A sliding tongue is provided on the inner wall of the rotating ring 24, and the rotating ring 24 is sleeved on the outer wall of the smooth rod 23. The spiral groove 231 is slidably connected. When the base 22 is pressed, it can drive the rotating ring 24 to rotate through the smooth rod 23, so that the steel needle 25 grinds the bottom of the plaster rod 5 into plaster powder through rotation. The plaster powder is sprinkled on the ground for marking. A pressure block 26 is slidably connected inside the cavity rod 21. A first spring is provided between the pressure block 26 and the inner wall of the cavity rod 21. The cavity rod 21 is provided with a door for installing the plaster rod 5. The two ends of the plaster rod 5 abut against the pressure block 26 and the steel needle 25 respectively. A second spring is provided between the outer wall of the cavity rod 21 and the base 22. Both the base 22 and the rotating ring 24 are provided with through holes for the plaster powder to be sprinkled.

[0027] In this embodiment, the prefabricated cylindrical plaster rod 5 is designed to fit the first cavity. With the help of the hatch, the plaster rod 5 can be quickly filled and replaced. After assembly, the plaster rod 5 is always in contact with the steel needle 25 under the axial pressure of the first spring and the pressure block 26, ensuring the continuity of grinding powder. When the rod body 1 is pressed, the relative movement of the base 22 and the smooth rod 23 forms a spiral transmission pair through the spiral groove 231 and the sliding tongue, driving the rotating ring 24 and the steel needle 25 to rotate and grind powder. The plaster powder falls accurately to the ground through the through hole of the base 22 and the rotating ring 24. The second spring can automatically reset after pressing. Compared with the traditional manual method of sprinkling plaster powder, it simplifies the operation process of urban and rural planning measurement markers, improves the accuracy of the marking position, and avoids plaster powder adhering to the workers and causing pollution, thus meeting the efficiency and cleanliness requirements of RTK measurement operations.

[0028] In addition, a serrated ring 27 is connected to the inner wall of the cavity rod 21, and an elastic plate 28 is connected through a set of steel needles 25. When the elastic plate 28 moves, it contacts the serrated ring 27. When the rotating ring 24 drives the steel needles 25 and the elastic plate 28 to rotate, the elastic plate 28 and the tooth surface of the serrated ring 27 are in continuous contact to generate elastic deformation and reset vibration. After the vibration is transmitted to the steel needles 25, it can promote the rapid falling of the gypsum powder generated by grinding, prevent the powder from sticking and accumulating, and improve the grinding efficiency of the gypsum rod 5, ensuring that the powder output process is continuous and smooth.

[0029] Please see Figure 3 , Figure 6 , Figure 7 In another embodiment: A crushing assembly 3 is provided inside the hollow rod 21. The crushing assembly 3 includes a perforated ring 31 connected to the bottom of the hollow rod 21. The perforated ring 31 has multiple grooves. A smooth rod 23 passes through the perforated ring 31. Multiple crushing rods 32 are hinged to the perforated ring 31. A connecting rod 33 is hinged to the crushing rod 32. The end of the connecting rod 33 away from the crushing rod 32 is hinged to the outer wall of the smooth rod 23. Multiple spikes are provided at the bottom of the crushing rods 32. The multiple crushing rods 32 are located above the multiple grooves. The crushing assembly 3 relies on the connection between the smooth rod 23 and the hollow rod 21. The device operates in conjunction with the movement. Pressing rod 1 causes the hollow rod 21 to move downwards. Under the action of connecting rod 33, the breaking rod 32 is pressed tightly against the smooth rod 23, exposing the groove of the hole ring 31 and trapping larger gypsum blocks. When rod 1 is released to reset, the breaking rod 32 swings downwards under the thrust of connecting rod 33. Its bottom spike can break the gypsum blocks on the groove, causing the gypsum blocks to break into small particles and fall to the ground with the powder, making the measurement marks more visible and clear. At the same time, it avoids gypsum blocks clogging the through holes, further improving the device's adaptability to working conditions and the marking effect.

[0030] Please see Figure 1 , Figure 8 - Figure 11 In another embodiment: A locking assembly 4 is provided on the outer wall of the hollow rod 21 to lock the base 22 when the rod 1 is tilted, preventing the base 22 from pressing down to trigger the marking action. The locking assembly 4 includes a locking ring 42, which is rotatably connected to the outer wall of the hollow rod 21. The locking ring 42 has two slots. Two abutment rods 41 are connected to the base 22. The top ends of the two abutment rods 41 can pass through the two slots of the locking ring 42 respectively. A grooved ring 43 is connected to the locking ring 42. A second cavity is provided inside the 21, and a steel ball 46 is placed inside the second cavity. A sliding rod 44 is vertically slidably connected to the top of the second cavity, and the bottom of the sliding rod 44 abuts against the steel ball 46. Two sliding shafts 45 are connected to the sliding rod 44. Two arc-shaped grooves are opened in the inner wall of the grooved ring 43, and the two sliding shafts 45 are slidably connected to the two arc-shaped grooves respectively. When the sliding rod 44 moves vertically, it drives the grooved ring 43 to rotate through the two sliding shafts 45. The bottom of the second cavity is provided with a slope. At the inclination angle of the cavity rod 21... When the tilt angle is less than 3 degrees, the steel ball 46 is guided to roll to the center of the second cavity by the slope, and the bottom of the slide rod 44 is set as a hemispherical shape. When the locking assembly 4 is measured by RTK, the tilt angle of the rod 1 is set to ≤3 degrees as the standard value. The verticality is automatically sensed by the gravity rolling characteristics of the steel ball 46. When the tilt angle of the rod 1 exceeds 3 degrees, the steel ball 46 deviates from the center and cannot lift the slide rod 44. The locking ring 42 rotates to make the groove and the contact rod 41 misalign. The contact rod 41 forms a support structure to prevent the cavity rod 21 from moving down. This not only prevents the grinding mark from being triggered, but also allows the staff to intuitively judge that the tilt angle of the rod 1 exceeds the limit by pressing and resisting, and adjust the verticality in time. When the tilt angle of the rod 1 is less than 3 degrees, the steel ball 46 returns to its position and lifts the slide rod 44, driving the locking ring 42 to rotate so that the groove and the contact rod 41 are aligned. The base 22 can then press down normally, which avoids the deviation of the mark position caused by the inaccurate RTK positioning when the rod 1 is tilted, and ensures the positioning accuracy of urban and rural planning measurement.

[0031] In addition, a latching groove 431 is provided on the grooved ring 43, and a latching rod 47 is hinged on the cavity rod 21. The latching rod 47 can be embedded in the latching groove 431. The latching rod 47 and the latching groove 431 form a mechanical latching and limiting structure. When there is no need to perform marking work, the grooved ring 43 is rotated to make the latching rod 47 embed into the latching groove 431, which can fix the position of the locking ring 42 and make its groove continuously deviate from the abutting rod 41, thereby realizing the forced locking of the marking component 2, preventing accidental pressing and triggering of the marking in non-operational state, further improving the controllability and reliability of the device, and meeting the usage needs of different operation scenarios.

[0032] When using this multifunctional urban and rural planning positioning and measurement auxiliary device, the plaster rod 5 is prefabricated and its shape is cylindrical, fitting the inside of the first cavity. During installation, the hatch of the cavity rod 21 is opened, and then one end of the plaster rod 5 is pressed against the pressure block 26 to compress the first spring. Then, the plaster rod 5 is filled into the first cavity, and finally, the bottom of the plaster rod 5 presses against the two sets of steel needles 25. Then, the hatch is closed. The cavity rod 21 and the rod body 1 form a whole. The top of the rod body 1 can be equipped with an RTK receiver. After the RTK receiver is installed, measurement or line laying positioning operations can begin. When it is necessary to mark the current survey point, the rod body 1 is pressed down, so that the rod body 1, the cavity rod 21 and the base 22 simultaneously apply downward pressure to the ground. The base 22 stops moving downward due to the reaction force of the ground, but the cavity rod 21 and its internal rotating ring 24 continue to move downward. Therefore, a relative movement is formed between the rotating ring 24 and the smooth rod 23. When the smooth rod 23 slides along the rotating ring 24, the spiral groove 231 on its outer wall and the sliding tongue on the inner wall of the rotating ring 24 form a spiral transmission pair, thereby driving the rotating ring 24 to rotate in the cavity rod 21. The two sets of steel needles 25 on the rotating ring 24 rotate synchronously, generating friction and grinding action with the bottom of the plaster rod 5. Under the elastic force of the first spring, the pressure block 26 continuously applies axial pressure to the plaster rod 5, ensuring that the bottom of the plaster rod 5 is always in contact with the steel needles 25, ensuring the continuity of grinding powder. The plaster powder generated by grinding falls to the ground through the through holes of the rotating ring 24 and the base 22 in sequence, achieving accurate marking. After pressing, the staff releases the rod body 1, and the second spring uses its elastic force to drive the cavity rod 21 and the rod body 1 to spring back to their original position. The steel needles 25 grind the plaster rod 5 to produce powder. Compared with the conventional method of manually sprinkling plaster powder, the operation is more convenient and the marking is more accurate. At the same time, it also avoids plaster powder adhering to the staff.

[0033] When the rotating ring 24 drives the steel needle 25 and the elastic plate 28 to rotate, the elastic plate 28 moves in a circular motion with the steel needle 25. The elastic plate 28 is in continuous contact with the tooth surface of the serrated ring 27 and generates elastic deformation and reset vibration. This vibration is transmitted to the steel needle 25, so that when the steel needle 25 contacts the bottom of the plaster rod 5, it promotes the falling of plaster powder through vibration, improves the grinding efficiency of the plaster rod 5, and ensures smooth powder output.

[0034] The perforated ring 31 moves synchronously with the cavity rod 21. When the cavity rod 21 moves downward, the perforated ring 31 moves downward accordingly, and the multiple breaking rods 32 on the perforated ring 31 move downward synchronously. When the breaking rods 32 move downward, since the smooth rod 23 does not move downward, the smooth rod 23 applies a pulling force to the breaking rods 32 through the connecting rod 33, causing the breaking rods 32 to swing upward until they are in close contact with the outer wall of the smooth rod 23. At this time, the groove of the perforated ring 31 is fully exposed. During the grinding process, in addition to powder, lumps of plaster will also fall off the plaster rod 5. The perforated ring 31 is located in the through hole between the rotating ring 24 and the base 22. Between, the plaster block larger than the inner wall of the trough will remain temporarily on the trough. After the rod body 1 is released, the cavity rod 21 moves upward and resets, and the breaking rod 32 also moves upward and resets. At this time, the breaking rod 32 moves upward relative to the smooth rod 23. The smooth rod 23 applies a pushing force to the breaking rod 32 through the connecting rod 33, causing the breaking rod 32 to swing downward. When the spikes on the breaking rod 32 swing downward, they contact the plaster block stuck on the trough, thereby breaking the plaster block. The plaster block is broken into particles and falls to the ground through the trough and the groove of the base 22. By breaking the plaster block and scattering it, the marking can be made more conspicuous.

[0035] During operation, when the rod 1 and the cavity rod 21 tilt more than 3 degrees, the steel ball 46 deviates from the center of the second cavity due to gravity. At this time, the steel ball 46 deviates from the bottom of the slide rod 44, and the slide rod 44 falls due to its own weight. When the slide rod 44 falls, the two sliding shafts 45 on the slide rod 44 slide along the arc groove of the groove ring 43, driving the groove ring 43 and the locking ring 42 to rotate. This causes the groove of the locking ring 42 to rotate and become misaligned with the abutment rod 41. At this time, both abutment rods 41 are blocked by the locking ring 42. After the tops of the two abutting rods 41 are held in place by the locking ring 42, the two abutting rods 41 form a support structure between the locking ring 42 and the base 22. At this time, the cavity rod 21 cannot move down, so it cannot trigger the rotating ring 24 to rotate and grind the plaster rod 5. At this time, the worker's action of pressing the rod body 1 is blocked, and it can be judged that the current tilt angle of the rod body 1 exceeds the limit. It is necessary to adjust the verticality of the rod body 1. When the tilt angle of the rod body 1 is less than 3 degrees, the slope at the bottom of the second cavity guides the steel ball 46 to roll to the center of the second cavity, and the steel ball 46 lifts the bottom. The slide rod 44 is hemispherical, causing it to move vertically upwards. Two sliding shafts 45 on the slide rod 44 slide along the arc-shaped groove of the grooved ring 43, driving the grooved ring 43 and locking ring 42 to rotate in opposite directions until the two slots of the locking ring 42 align with the two abutment rods 41 on the base 22. At this point, the abutment rods 41 can freely pass through the slots, and the base 22 can be pressed down normally to trigger the marking action. Furthermore, when the marking assembly 2 needs to be manually locked, the grooved ring 43 is manually rotated so that the latching groove 431 rotates below the latching rod 47, and then the latching rod 47 is moved to engage the locking mechanism. Rod 47 is embedded in the buckle groove 431 to achieve mechanical locking of the groove ring 43. At this time, the groove of the locking ring 42 deviates from the abutment rod 41 and locks the abutment rod 41. Therefore, through the setting of the locking component 4, when the rod body 1 is tilted more than 3 degrees during the operation, the locking component 4 can automatically lock the abutment rod 41, so that the cavity rod 21 cannot be pressed down. After the verticality of the rod body 1 is adjusted, it automatically engages the lock, and the marking component 2 can operate normally, avoiding inaccurate marking positions caused by marking when the rod body 1 is tilted.

[0036] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A multifunctional urban and rural planning positioning and measurement auxiliary device, comprising a pole (1), characterized in that: The bottom of the rod (1) is provided with a marking component (2). The marking component (2) includes a cavity rod (21). The cavity rod (21) has a first cavity. The first cavity has a plaster rod (5). The bottom of the cavity rod (21) is slidably sleeved with a base (22). The cavity rod (21) is rotatably connected with a rotating ring (24). Two sets of steel needles (25) are installed on the rotating ring (24). The base (22) is equipped with a smooth rod (23). When the base (22) is pressed, it can drive the rotating ring (24) to rotate through the smooth rod (23), so that the steel needles (25) grind the bottom of the plaster rod (5) into plaster powder through rotation. The plaster powder is sprinkled on the ground for marking. The outer wall of the hollow rod (21) is provided with a locking assembly (4) for locking the base (22) when the rod (1) is tilted, so that the base (22) cannot be pressed down to trigger the marking action.

2. The multifunctional urban and rural planning positioning measurement auxiliary device according to claim 1, characterized in that: A pressure block (26) is slidably connected inside the cavity rod (21). A first spring is provided between the pressure block (26) and the inner wall of the cavity rod (21). A door for installing a plaster rod (5) is provided on the cavity rod (21). The two ends of the plaster rod (5) abut against the pressure block (26) and the steel needle (25) respectively. A second spring is provided between the outer wall of the cavity rod (21) and the base (22). Both the base (22) and the rotating ring (24) are provided with through holes for plaster powder to fall.

3. The multifunctional urban and rural planning positioning measurement auxiliary device according to claim 2, characterized in that: The outer wall of the optical rod (23) is provided with a spiral groove (231), the inner wall of the rotating ring (24) is provided with a sliding tongue, the rotating ring (24) is sleeved on the outer wall of the optical rod (23), and the sliding tongue is slidably connected to the spiral groove (231).

4. The multifunctional urban and rural planning positioning measurement auxiliary device according to claim 3, characterized in that: The inner wall of the cavity rod (21) is connected to a serrated ring (27), and an elastic sheet (28) is connected through a group of steel needles (25). When the elastic sheet (28) moves, it contacts the serrated ring (27).

5. The multifunctional urban and rural planning positioning and measurement auxiliary device according to claim 3, characterized in that: The cavity rod (21) is provided with a crushing component (3), which includes a perforated ring (31) connected to the bottom of the cavity rod (21). The perforated ring (31) has multiple slots. The smooth rod (23) passes through the perforated ring (31). Multiple crushing rods (32) are hinged on the perforated ring (31). A connecting rod (33) is hinged on the crushing rod (32). The end of the connecting rod (33) away from the crushing rod (32) is hinged to the outer wall of the smooth rod (23).

6. The multifunctional urban and rural planning positioning and measurement auxiliary device according to claim 5, characterized in that: The bottom of the crushing rod (32) is provided with multiple spikes, and the multiple crushing rods (32) are respectively located above multiple troughs.

7. A multifunctional urban and rural planning positioning and measurement auxiliary device according to claim 2, characterized in that: The locking assembly (4) includes a locking ring (42), which is rotatably connected to the outer wall of the cavity rod (21). The locking ring (42) has two slots. The base (22) is connected to two abutting rods (41). The top ends of the two abutting rods (41) can pass through the two slots of the locking ring (42). The locking ring (42) is connected to a grooved ring (43). The cavity rod (21) has a second cavity. The second cavity has a steel ball (46). The top of the second cavity is vertically slidably connected to a sliding rod (44). The bottom of the sliding rod (44) abuts against the steel ball (46). The sliding rod (44) is connected to two sliding shafts (45). The inner wall of the grooved ring (43) has two arc-shaped grooves. The two sliding shafts (45) are slidably connected to the two arc-shaped grooves respectively. When the sliding rod (44) moves vertically, it drives the grooved ring (43) to rotate through the two sliding shafts (45).

8. A multifunctional urban and rural planning positioning and measurement auxiliary device according to claim 7, characterized in that: The bottom of the second cavity is provided with a slope. When the inclination angle of the cavity rod (21) is less than 3 degrees, the steel ball (46) is guided to roll to the center position of the second cavity by the slope. The bottom of the slide rod (44) is set as a hemispherical shape.

9. A multifunctional urban and rural planning positioning and measurement auxiliary device according to claim 8, characterized in that: The grooved ring (43) has a buckle groove (431), and the hollow rod (21) is hinged with a buckle rod (47), which can be embedded in the buckle groove (431).

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