Urban and rural planning land integrated positioning measurement equipment

Abstract

The application relates to the technical field of land planning and surveying equipment, and discloses an integrated positioning and surveying equipment for urban and rural planning land, which comprises an upper ring stand, a lower ring stand, a range finder body, a control mechanism for controlling the quick unfolding and quick contraction of the range finder body, a lifting mechanism, a zooming mechanism and a self-unfolding mechanism. The integrated positioning and surveying equipment for urban and rural planning land can automatically control the opening of the threaded sleeve during the process of lifting the whole equipment by the operator, so that the threaded connection is contacted, the range finder body is automatically returned instantaneously, the contraction of the triangular support is controlled at the same time, the whole surveying equipment is contracted, the operator is facilitated to use and store, the waiting return of the screw rotation type in the traditional mode is solved, the quick measurement of each measuring point by the operator can be effectively ensured, and the measurement efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of land planning and surveying equipment technology, specifically to an integrated positioning and surveying equipment for urban and rural planning and land use. Background Technology

[0002] Urban and rural planning is a spatial layout plan that takes promoting the comprehensive, coordinated and sustainable development of urban and rural economy and society as its fundamental task, scientific land use as its foundation, and improvement of human living environment as its goal. Location measurement provides substantial data for urban and rural planning, and urban and rural planning can be better formulated based on the on-site data.

[0003] Currently, distance measuring instruments are generally used for land surveying to measure distance and orientation. However, these instruments are somewhat cumbersome to use because there are many types, including retractable and foldable models as well as modular ones. Therefore, operators need to manually open or assemble them. Furthermore, some distance measuring instruments require measurement at different locations, necessitating position changes. Since the measurement height and orientation vary at each point, operators need to frequently adjust the lifting mechanism of the distance measuring instrument to adapt to different locations. Although some distance measuring instruments have electrically operated lifting mechanisms, the high-frequency adjustments can cause fatigue damage to the lead screw and motor. Therefore, this paper proposes an integrated urban and rural planning land use positioning and measurement device to solve the aforementioned problems. Summary of the Invention

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides an integrated positioning and measurement device for urban and rural planning and land use, which solves the problems of cumbersome operation and inconvenience in the use and operation of existing measuring instruments, as well as in repositioning measurements.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: an integrated positioning and measurement device for urban and rural planning and land use, comprising an upper ring frame and a lower ring frame, wherein the upper ring frame is connected to the lower ring frame via a connecting rod; a rangefinder body; and a control mechanism for controlling the rapid deployment and rapid retraction of the rangefinder body; the control mechanism includes a lifting mechanism, a scaling mechanism, and a self-deploying mechanism; the lifting mechanism includes an adjusting screw, the surface of which is threadedly connected to a threaded sleeve, the threaded sleeve being disposed on the upper ring frame, and the top of the adjusting screw being connected to the rangefinder body.

[0006] Preferably, the scaling mechanism includes a carrying plate, which is slidably connected to the upper ring frame. A pull rod is connected to the bottom of the carrying plate, and two carrying frames are rotatably connected to the carrying plate. The rangefinder body is located between the two carrying frames, and the pull rod is slidably connected to a threaded sleeve.

[0007] Preferably, the threaded sleeve comprises two half-sleeves, each half-sleeve having a thread, the adjusting screw being connected to the thread in the two half-sleeves, and the two half-sleeves being connected by a small spring.

[0008] Preferably, a small sliding rod is slidably connected between the two half-sleeves, and a small spring is sleeved on the small sliding rod. A limit rod is slidably connected to each of the two half-sleeves, and the limit rod is installed on the upper ring frame. A stepped surface is provided on the pull rod.

[0009] Preferably, the pull rod has a groove, the limiting rod is slidably connected inside the groove, and the bottom of the pull rod is connected to the self-deploying mechanism.

[0010] Preferably, the self-unfolding mechanism includes a rotating sleeve with a spiral groove, a ring sleeve slidably connected to the rotating sleeve, a sliding pin connected inside the ring sleeve, the sliding pin being slidably connected inside the spiral groove, the ring sleeve being connected to a pull rod, a worm sleeve being connected to the bottom of the rotating sleeve, three worm gears meshing on the surface of the worm sleeve, and a support connecting rod being fixedly connected to the worm gears.

[0011] Preferably, a fixing sleeve is connected to the bottom of the lower ring frame, a buffer spring is provided inside the fixing sleeve, a lower support rod is connected to the top of the buffer spring, abutting rod is abutted to the top of the lower support rod, and the abutting rod is connected to the adjusting screw.

[0012] Preferably, the abutment rod is slidably connected inside the fixed sleeve, and all three worm gear pieces are rotatably connected to the lower ring frame.

[0013] Preferably, a material sleeve is connected to the fixed sleeve, white powder is disposed inside the material sleeve, a feeding port is opened on the fixed sleeve inside the material sleeve, a baffle plate is connected to the lower support rod, a discharge port is disposed on the fixed sleeve below the material sleeve, and the baffle plate is located above the discharge port.

[0014] (III) Beneficial Effects Compared with the prior art, the present invention provides an integrated positioning and measurement device for urban and rural planning and land use, which has the following beneficial effects: 1. This integrated urban and rural planning land use positioning and measurement equipment, through its scaling mechanism, can automatically control the opening of the threaded sleeve during the operator's lifting of the entire equipment, thereby contacting the threaded connection and allowing the rangefinder body to automatically and instantly return to its original position. At the same time, it controls the retraction of the triangular support to retract the entire measuring equipment, making it convenient for the operator to use and store. This solves the problem of waiting for the traditional lead screw rotation method to return to its original position and can also effectively ensure that the operator can quickly measure each measurement point, thus improving measurement efficiency.

[0015] 2. This integrated urban and rural planning land use positioning and measurement equipment has a buffer spring that can buffer the control screw when it returns to its instantaneous position, avoiding hard contact damage to the rangefinder. At the same time, the elasticity of the buffer spring can also instantly open the discharge port to control the leakage of white powder inside the material sleeve, so that it falls onto the measurement point surface and marks the measurement point, which is convenient for subsequent planning calculations. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an integrated positioning and measurement device for urban and rural planning and land use proposed in this invention; Figure 2 This is a schematic diagram of the connection structure of the scaling mechanism of an integrated positioning and measurement device for urban and rural planning and land use proposed in this invention. Figure 3 This is a schematic diagram of the threaded sleeve connection structure of an integrated positioning and measurement device for urban and rural planning and land use proposed in this invention; Figure 4 This is a schematic diagram of the threaded sleeve structure of an integrated positioning and measurement device for urban and rural planning and land use proposed in this invention; Figure 5 This is a schematic diagram of the self-deploying mechanism of an integrated positioning and measurement device for urban and rural planning and land use proposed in this invention; Figure 6 This is a schematic diagram of the connection structure of the buffer spring in an integrated positioning and measurement device for urban and rural planning and land use proposed in this invention. Figure 7 This is a schematic diagram of the material sleeve connection structure of an integrated positioning and measurement device for urban and rural planning and land use proposed in this invention.

[0017] In the diagram: 1. Upper ring frame; 2. Lower ring frame; 3. Rangefinder body; 4. Hand-held frame; 5. Control mechanism; 501. Adjustment screw; 502. Threaded sleeve; 5021. Half sleeve; 5022. Small spring; 5023. Small slide rod; 503. Hand-held plate; 504. Stepped surface; 505. Limiting rod; 506. Slide groove; 507. Pull rod; 508. Ring sleeve; 509. Rotating sleeve; 510. Spiral groove; 511. Sliding pin; 512. Worm sleeve; 513. Worm wheel plate; 514. Support connecting rod; 515. Abutment rod; 516. Fixing sleeve; 517. Buffer spring; 518. Barrier plate; 519. Lower support rod; 520. Discharge port; 521. Material sleeve; 522. Feed port. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1-7 An integrated positioning and measurement device for urban and rural planning and land use includes an upper ring frame 1 and a lower ring frame 2, the upper ring frame 1 being connected to the lower ring frame 2 via a connecting rod; a rangefinder body 3; and a control mechanism 5 for controlling the rapid deployment and rapid retraction of the rangefinder body 3; the control mechanism 5 includes a lifting mechanism, a scaling mechanism, and a self-deploying mechanism.

[0020] In this embodiment, the lifting mechanism includes a control screw 501, with a threaded sleeve 502 threadedly connected to the surface of the control screw 501. The threaded sleeve 502 is mounted on the upper ring frame 1, and the top of the control screw 501 is connected to the rangefinder body 3. To meet the requirements of rapid retraction and self-locking functions, the threaded sleeve 502 adopts a split structure design, specifically composed of two symmetrically arranged half-sleeves 5021. The inner walls of both half-sleeves 5021 are provided with internal threads that match the control screw 501. After mating, they form a complete threaded pair, constituting a threaded transmission engagement with the control screw 501. The two half-sleeves 5021 are elastically connected by at least one small spring 5022 and slidably connected by a small slide rod 5023 to ensure mating accuracy. This elastic split structure enables the threaded sleeve 502 to have the ability to adjust radial contraction and expansion, thereby realizing the clamping and locking or disengagement of the control screw 501. When the threaded sleeve 502 is in the closed state, the adjusting screw 501 can rotate manually or under external force, achieving smooth rise or fall of the rangefinder body 3 through threaded transmission to meet the height adjustment requirements of different measurement points. When the threaded sleeve 502 expands under external force, the threaded pair disengages, the adjusting screw 501 loses its constraint, and the rangefinder body 3 can instantly fall back under gravity, achieving rapid retraction and reset. This lifting mechanism not only realizes the height adjustment function in conventional measurement, but also solves the problems of cumbersome operation, slow return speed, and easy fatigue damage of the screw in traditional threaded screw lifting structures when frequently changing measurement points by linkage with the scaling mechanism and the self-deploying mechanism, significantly improving the ease of use and structural response efficiency of the equipment.

[0021] Furthermore, the scaling mechanism includes a carrying plate 503, which is slidably connected to the upper ring frame 1. A pull rod 507 is connected to the bottom of the carrying plate 503, and two carrying arms 4 are rotatably connected to the carrying plate 503. The rangefinder body 3 is located between the two carrying arms 4, and the pull rod 507 is slidably connected to the threaded sleeve 502. Two carrying arms 4 are symmetrically rotatably connected to the upper surface of the carrying plate 503. The two carrying arms 4 have an arc or U-shaped structure and can rotate relative to each other around their connecting axis with the carrying plate 503. In the initial state, the two carrying arms 4 are in the extended position, making it easy for the operator to hold. When it is necessary to move or retract the equipment, the operator can hold the two carrying arms 4 and rotate them towards each other to merge, thus achieving single-handed lifting operation. The rangefinder body 3 is located in the space between the two carrying arms 4, protected by the carrying arms 4 without interfering with their rotation. The upper middle part of the pull rod 507 is slidably connected to the threaded sleeve 502.

[0022] The pull rod 507 has a stepped surface 504 and a vertical groove 506 on its shaft. The two half-sleeves 5021 of the threaded sleeve 502 are slidably connected to the groove 506 via a limiting rod 505, which is mounted on the upper ring frame 1. The bottom of the pull rod 507 is connected to the self-unfolding mechanism. When the pull rod 507 slides up and down, the position of the stepped surface 504 changes accordingly, thereby achieving radial constraint or release control of the two half-sleeves 5021. When the operator lifts the carrying frame 4, the carrying plate 503 drives the pull rod 507 upward, causing the contact surface to disengage from the half-sleeves 5021. Under the elastic force of the small spring 5022, the two half-sleeves 5021 expand radially, releasing the thread lock on the adjusting screw 501.

[0023] When the operator lowers the carrying frame 4, the carrying plate 503 and the pull rod 507 sink under gravity, the step surface 504 moves downward and weds into the gap between the two half-sleeves 5021 and the upper ring frame 1, causing the two half-sleeves 5021 to close radially and restoring the threaded locking state of the adjusting screw 501. The scaling mechanism realizes the mechanical linkage between single-handed lifting operation and threaded sleeve opening and closing control. Without additional power source or manual adjustment steps, it can automatically release the lifting lock the moment the equipment is lifted, creating conditions for the rapid return and reset of the rangefinder body 3; at the same time, it automatically restores the lock when the equipment is placed down, ensuring high stability during the measurement process.

[0024] Furthermore, the threaded sleeve 502 comprises two half-sleeves 5021, each with internal threads. The adjusting screw 501 is connected to these threads. When the two half-sleeves 5021 are closed, they engage to form a complete threaded sleeve, creating a driveable threaded connection with the adjusting screw 501. When the two half-sleeves 5021 are in an expanded state, the internal threads disengage from the external threads of the adjusting screw 501, releasing the transmission constraint. The two half-sleeves 5021 are elastically connected by a small spring 5022, which maintains a constant radial expansion preload on the two half-sleeves 5021. To ensure the stability of the movement of the two half-sleeves 5021 during engagement and disengagement, at least one small slide rod 5023 is slidably connected between them, with the small spring 5022 sleeved around the outside of the slide rod 5023. The small slide rod 5023 passes through the guide holes of the two half-sleeves 5021, providing installation and positioning for the small spring 5022 and guiding and limiting the relative movement of the two half-sleeves 5021, ensuring that they always maintain a coaxial alignment and preventing misalignment or jamming. Limit rods 505 are slidably connected to the outer sides of both half-sleeves 5021. The limit rods 505 are guide pin structures fixedly installed on the upper ring frame 1. The limit rods 505 pass through the guide holes in the half-sleeves 5021, guiding and constraining the radial movement of the half-sleeves 5021. This ensures that the two half-sleeves 5021 can only expand or contract radially under the elastic force of the small spring 5022 and external forces, without axial displacement or rotation, thus guaranteeing the alignment accuracy of the threaded sleeve 502 and the adjusting screw 501.

[0025] The bottom of the pull rod 507 extends downwards, passes through the upper ring frame 1, and is fixedly connected to the core driving element of the self-deploying mechanism—the ring sleeve 508. Through this connection, the up-and-down sliding motion of the pull rod 507 can be synchronously transmitted to the self-deploying mechanism, realizing the linkage control of the deployment and retraction states of the support link 514. Thus, the scaling mechanism, the lifting mechanism, and the self-deploying mechanism form an integrated motion control chain through the pull rod 507: when the operator lifts or lowers the carrying frame 4, the carrying plate 503 drives the pull rod 507 to slide up and down. On the one hand, the step surface 504 controls the opening and closing state of the threaded sleeve 502, realizing the locking and releasing of the adjusting screw 501; on the other hand, the ring sleeve 508 at the bottom drives the self-deploying mechanism to move, realizing the synchronous deployment and retraction of the triangular support structure.

[0026] Furthermore, the self-deploying mechanism includes a rotating sleeve 509 with a spiral groove 510. A ring sleeve 508 is slidably connected to the rotating sleeve 509, and a sliding pin 511 is connected inside the ring sleeve 508. The sliding pin 511 is slidably connected inside the spiral groove 510. A worm sleeve 512 is connected to the bottom of the rotating sleeve 509, and three worm gears 513 mesh with the surface of the worm sleeve 512. A support rod 514 is fixedly connected to the worm gears 513. The ring sleeve 508 and the rotating sleeve 509 form an axial sliding pair, allowing the ring sleeve 508 to slide up and down along the outer wall of the rotating sleeve 509. At least two sliding pins 511 are fixedly connected inside the ring sleeve 508, extending radially inward, penetrating the wall of the ring sleeve 508, and then slidingly embedding into the spiral groove 510 of the rotating sleeve 509, forming a spiral sliding pair. The upper part of the ring sleeve 508 is fixedly connected to the bottom of the pull rod 507 of the scaling mechanism. When the pull rod 507 slides up and down under the drive of the scaling mechanism, the ring sleeve 508 moves up and down synchronously, and the sliding pin 511 slides within the spiral groove 510. Due to the guiding effect of the spiral groove 510, the linear motion of the sliding pin 511 is converted into the rotational motion of the rotating sleeve 509. When the pull rod 507 drives the ring sleeve 508 to move down, the sliding pin 511 slides downward along the spiral groove 510, forcing the rotating sleeve 509 to rotate in one direction. When the pull rod 507 drives the ring sleeve 508 to move up, the sliding pin 511 slides upward along the spiral groove 510, forcing the rotating sleeve 509 to rotate in the opposite direction. A worm sleeve 512 is fixedly connected to the bottom of the rotating sleeve 509. The worm sleeve 512 is a sleeve-shaped structure with spiral teeth on its outer circumference, and is coaxially arranged with the rotating sleeve 509 and rotates synchronously. Three worm gear pieces 513 mesh with the outer circumference of the worm sleeve 512. Each worm gear piece 513 has a fan-shaped worm gear structure, with teeth on its arc-shaped edge that mesh with the helical teeth of the worm sleeve 512. A support rod 514 is fixedly connected to the side of the worm gear piece 513 without teeth. The three worm gear pieces 513 are evenly distributed circumferentially and rotatably connected to the upper ring frame 1, allowing them to rotate around their respective axes. When the rotating sleeve 509 rotates under the drive of the ring sleeve 508, the worm sleeve 512 rotates synchronously, driving the three worm gear pieces 513 to rotate synchronously around their axes. Due to the unidirectional transmission characteristics and self-locking performance of the worm gear drive, the rotation angles of the three worm gear pieces 513 are precisely synchronized and can remain locked in any position.

[0027] In addition, a fixed sleeve 516 is connected to the bottom of the lower ring frame 2. A buffer spring 517 is installed inside the fixed sleeve 516. A lower support rod 519 is connected to the top of the buffer spring 517. A contact rod 515 abuts against the top of the lower support rod 519 and is connected to the adjusting screw 501. The contact rod 515 is slidably connected inside the fixed sleeve 516, and three worm gears 513 are rotatably connected to the lower ring frame 2. When the operator lifts the carrying frame 4 to retract the equipment, the threaded sleeve 502 expands and releases its lock, causing the rangefinder body 3 to fall rapidly under gravity. At this time, the adjusting screw 501 drives the contact rod 515 downwards, which abuts against the lower support rod 519 and compresses the buffer spring 517. The buffer spring 517 absorbs the kinetic energy of the fall, preventing the rangefinder body 3 from colliding with the lower structure and causing damage. The buffer mechanism is housed within the fixed sleeve 516 of the lower ring frame 2, while the self-deploying drive mechanism is mounted on the upper ring frame 1, forming a functional layout with upper and lower partitions. Each mechanism independently performs its function while achieving motion linkage through the control screw 501 and the pull rod 507, resulting in a compact structure that does not interfere with each other. The fixed connection between the abutment rod 515 and the control screw 501, as well as the abutment relationship between the abutment rod 515 and the lower support rod 519, ensures reliable transmission of lifting and lowering motion and buffer response. Whether in normal lifting and lowering adjustment or rapid descent, the movement of the control screw 501 can be accurately transmitted to the buffer mechanism. The three worm gear plates 513 are rotatably connected to the lower ring frame 2, ensuring the synchronization and stability of the support link 514 during deployment. The self-locking characteristic of the worm gear drive allows the support link 514 to be reliably locked after deployment, forming a stable triangular support system together with the lower ring frame 2 and the fixed sleeve 516, ensuring the overall stability of the equipment during measurement. The abutment rod 515, as an extension of the regulating screw 501, transmits the lifting motion to the buffer mechanism, which in turn provides protection during rapid descent.

[0028] It is worth noting that a material sleeve 521 is connected to the outer wall of the fixed sleeve 516. A feed port 522 is provided inside the material sleeve 521 on the fixed sleeve 516. A baffle plate 518 is connected to the lower support rod 519. A discharge port 520 is provided below the material sleeve 521 on the fixed sleeve 516. Initially, the entire baffle plate 518 is located above the discharge port 520. When powder is applied, the baffle plate 518 moves to below the discharge port 520. The material sleeve 521 is a closed container structure with a hollow interior forming a storage cavity for storing white powder used for marking, such as lime powder, gypsum powder, or other coloring powders. The connection between the material sleeve 521 and the fixed sleeve 516 is sealed to prevent powder leakage. The interior of the material sleeve 521 is connected to the interior cavity of the fixed sleeve 516 through the feed port 522 on the side wall of the fixed sleeve 516. The feed inlet 522 is a through hole penetrating the side wall of the fixed sleeve 516, located within the area covered by the material sleeve 521, allowing the white powder inside the material sleeve 521 to enter the internal receiving cavity of the fixed sleeve 516 through the feed inlet 522. When the operator lifts the carrying frame 4 to retract the equipment, the threaded sleeve 502 expands and releases its lock, and the rangefinder body 3 quickly falls back under gravity. The adjusting screw 501 drives the abutment rod 515 to move downward, and after abutting against the lower support rod 519, it compresses the buffer spring 517. The lower support rod 519 slides downward against the elastic force of the buffer spring 517, causing the barrier plate 518 to move downward synchronously. When the barrier plate 518 moves down to below the discharge port 520, the discharge port 520 loses its obstruction and is in an open state. The feed inlet 522 is always positioned above the baffle plate 518. White powder inside the sleeve 521 enters the fixed sleeve 516 through the feed inlet 522 and flows downwards along the inner wall of the fixed sleeve 516 under gravity, exiting through the open outlet 520 to the ground, forming a white powder mark at the measurement point. After instantaneous compression, the buffer spring 517 immediately extends and resets, pushing the lower support rod 519 and the baffle plate 518 to slide upwards. The baffle plate 518 then moves back above the outlet 520, closing the outlet 520 and stopping the white powder discharge.

[0029] When continuous linear marking is required, such as spreading powder along the measurement route, the operator can hold the lifting frame 4 while pressing the upper part of the rangefinder body 3 with another finger, causing it to move downwards a certain distance. The adjusting screw 501 drives the abutment rod 515 downwards, compressing the buffer spring 517. The lower support rod 519 and the blocking plate 518 move downwards and remain in the downward position, ensuring the blocking plate 518 remains below the discharge port 520. The discharge port 520 remains continuously open, and the white powder in the material sleeve 521 enters the fixed sleeve 516 through the feed port 522 and is continuously discharged from the discharge port 520. The operator moves the device along the measurement route, and the white powder continuously discharges, forming a linear marking track on the ground. After releasing the pressure, the buffer spring 517 resets, the blocking plate 518 moves upwards to close the discharge port 520, and the marking stops. The compression motion of the buffer spring 517 drives the barrier plate 518 to open and close the discharge port 520, integrating the buffer protection function and the point marking function into a single mechanism. This eliminates the need for an additional power source, resulting in a simple and efficient structure. While the device rapidly retracts and resets, it automatically marks the current measurement point, requiring no additional operator intervention and improving efficiency during multi-point measurements. By controlling the pressing time and force, both point marking and linear marking modes can be implemented to meet the needs of different measurement scenarios, such as discrete point measurements and continuous route measurements. The opening and closing action of the barrier plate 518 precisely controls the timing and amount of white powder discharge, preventing waste or unnecessary pollution.

[0030] Working principle: First, during the use of the entire measuring device, the bottom of the fixed sleeve 516 contacts the ground. Then, the hand releases the handle 4, and the weight of the entire handle 4 plus the handle plate 503 sinks down. The stepped surface 504 on the pull rod 507 will slide into the gap between the half sleeve 5021 and the upper ring frame 1, so that the two half sleeves 5021 merge to form a complete threaded sleeve 502. Because the threaded sleeve 502 is designed as a two-part structure, it is easy to separate and detach the threaded connection later. The downward movement of the carrying plate 503, connected by the pull rod 507, causes the ring sleeve 508 to move downward. The downward movement of the ring sleeve 508 utilizes the two internal sliding pins 511 to slide within the spiral groove 510, thereby controlling the rotation of the rotating sleeve 509. The rotating sleeve 509 then drives the rotation of the worm sleeve 512. Through the worm gear transmission, the worm wheel plate 513 rotates at an angle, controlling the rotation of the support rod 514. Therefore, the three support rods 514 will rotate and unfold synchronously, providing triangular unfolding support for the entire measuring instrument. By utilizing the worm gear automatic unfolding method, unidirectional unfolding is possible. Even if the three support rods 514 are subjected to vibration or contact, they will still be self-locked and fixed by the worm gear structure, ensuring the stability of the support of the three support rods 514 for the measuring instrument. At this time, if the height of the rangefinder body 3 is adjusted, the rotation of the adjustment screw 501 can be controlled. The rotation of the adjustment screw 501 will cause the threaded sleeve 502 to rotate and rise, thereby adjusting the height of the measurement.

[0031] After measurement, during the hand-held repositioning, the operator controls the two carrying frames 4 to rotate and merge. When lifting, the carrying plate 503 moves upward, which in turn moves the pull rod 507 upward. After the pull rod 507 moves upward, the contact surface on the pull rod 507 will disengage from the half-set 5021, causing the step surface 504 on the pull rod 507 to move upward. At this point, there will be a certain gap between the step surface 504 and the half-set 5021, so the two half-sets 5021 are subjected to a small spring. The spring 5022 expands, causing the threaded sleeve 502 formed by the two half-sleeves 5021 to disengage from the adjusting screw 501. As a result, the entire rangefinder body 3 automatically sinks and resets under gravity. Simultaneously, the upward movement of the pull rod 507 causes the ring sleeve 508 to move upward, which in turn causes the rotating sleeve 509 to move upward, controlling the rotation and reset of the worm gear sleeve 512. This, in turn, causes the three support rods 514 to retract automatically. When the adjusting screw 501 automatically sinks and resets under gravity, it causes the abutment rod 515 to contact the lower support rod 519. The bottom of the lower support rod 519 is equipped with a buffer spring 517, which cushions the momentary sinking of the rangefinder body 3, preventing damage from hard contact. Furthermore, due to the instantaneous downward force of gravity, the buffer spring 517 will contract and expand elastically. Therefore, the blocking plate 518 on the lower support rod 519 will move down below the outlet 520. At this time, the marking powder inside the material sleeve 521 will flow out from the outlet 520 through the channel inside the fixed sleeve 516, marking the measurement point. After instantaneous compression, it will expand elastically, and then the blocking plate 518 will continue to move above the outlet 520 to block the flow channel of the powder. If linear marking is required, then... When the operator holds the lifting frame 4, they use one finger to press the top of the rangefinder body 3 to control it to move down a bit. At this time, by adjusting the linkage of the lead screw 501, the abutment rod 515 and the lower support rod 519, the barrier plate 518 is controlled to move down to below the discharge port 520, keeping the white powder channel open. Therefore, the marking white powder in the material sleeve 521 will enter the interior of the fixed sleeve 516 from the upper feed port 522, and then flow down to the discharge port 520 and be discharged outward, thereby moving and marking the entire land measurement position.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. An integrated positioning and measurement device for urban and rural planning and land use, characterized in that, It includes an upper ring frame (1) and a lower ring frame (2), wherein the upper ring frame (1) is connected to the lower ring frame (2) via a connecting rod; Rangefinder body (3); The control mechanism (5) is used to control the rapid deployment and rapid retraction of the rangefinder body (3); The control mechanism (5) includes a lifting mechanism, a scaling mechanism and a self-deploying mechanism; The lifting mechanism includes an adjusting screw (501), and a threaded sleeve (502) is threadedly connected to the surface of the adjusting screw (501). The threaded sleeve (502) is set on the upper ring frame (1), and the top of the adjusting screw (501) is connected to the rangefinder body (3).

2. The integrated positioning and measurement device for urban and rural planning and land use according to claim 1, characterized in that: The scaling mechanism includes a carrying plate (503), which is slidably connected to the upper ring frame (1). A pull rod (507) is connected to the bottom of the carrying plate (503). Two carrying frames (4) are rotatably connected to the carrying plate (503). The rangefinder body (3) is located between the two carrying frames (4). The pull rod (507) is slidably connected to the threaded sleeve (502).

3. The integrated positioning and measurement device for urban and rural planning and land use according to claim 2, characterized in that: The threaded sleeve (502) consists of two half sleeves (5021), each half sleeve (5021) having a thread. The adjusting screw (501) is connected to the thread in the two half sleeves (5021), and the two half sleeves (5021) are connected by a small spring (5022).

4. The integrated positioning and measurement device for urban and rural planning and land use according to claim 3, characterized in that: A small sliding rod (5023) is slidably connected between the two half-sets (5021), and a small spring (5022) is sleeved on the small sliding rod (5023). A limit rod (505) is slidably connected to each of the two half-sets (5021), and the limit rod (505) is installed on the upper ring frame (1). A stepped surface (504) is provided on the pull rod (507).

5. The integrated positioning and measurement device for urban and rural planning and land use according to claim 4, characterized in that: The pull rod (507) has a groove (506) and the limiting rod (505) is slidably connected inside the groove (506). The bottom of the pull rod (507) is connected to the self-deploying mechanism.

6. The integrated positioning and measurement device for urban and rural planning and land use according to claim 5, characterized in that: The self-deploying mechanism includes a rotating sleeve (509), on which a spiral groove (510) is provided. A ring sleeve (508) is slidably connected to the rotating sleeve (509). A sliding pin (511) is connected inside the ring sleeve (508). The sliding pin (511) is slidably connected inside the spiral groove (510). The ring sleeve (508) is connected to a pull rod (507). A worm sleeve (512) is connected to the bottom of the rotating sleeve (509). Three worm gear pieces (513) are meshed on the surface of the worm sleeve (512). A support connecting rod (514) is fixedly connected to the worm gear pieces (513).

7. The integrated positioning and measurement device for urban and rural planning and land use according to claim 6, characterized in that: The bottom of the lower ring frame (2) is connected to a fixed sleeve (516), and a buffer spring (517) is provided inside the fixed sleeve (516). The top of the buffer spring (517) is connected to a lower support rod (519), and the top of the lower support rod (519) abuts against a stop rod (515). The stop rod (515) is connected to the adjusting screw (501).

8. The integrated positioning and measurement device for urban and rural planning and land use according to claim 7, characterized in that: The abutment rod (515) is slidably connected inside the fixed sleeve (516), and the three worm gear pieces (513) are rotatably connected to the lower ring frame (2).

9. The integrated positioning and measurement device for urban and rural planning and land use according to claim 7, characterized in that: A material sleeve (521) is connected to the fixed sleeve (516), and white powder is provided inside the material sleeve (521). A feeding port (522) is opened on the fixed sleeve (516) inside the material sleeve (521). A barrier plate (518) is connected to the lower support rod (519). A discharge port (520) is provided on the fixed sleeve (516) below the material sleeve (521), and the barrier plate (518) is located above the discharge port (520).

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