A sound and light prompt locator for cadastral surveying and mapping boundary point positioning
By designing an audible and visual prompt locator and a detachable connecting rod structure, the problems of active prompting and stability of boundary point marking were solved, improving the identification and insertion efficiency of boundary points in complex environments and reducing wear and safety hazards.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 重庆市智绘检测技术有限公司
- Filing Date
- 2025-08-19
- Publication Date
- 2026-07-03
AI Technical Summary
Existing boundary point markers lack proactive warning functions, tend to tilt after being inserted into the ground, are difficult to insert into hard soil, and pose wear and safety hazards.
A cadastral survey boundary positioning audible and visual prompt locator was designed. It adopts an audible and visual locator combined with a detachable connecting rod structure, including a first connecting rod, a second connecting rod and a connecting ring. Stable connection is achieved through threaded connection and positioning pin. It is equipped with a protective cover and a base plate for support, and a sliding limit structure realizes state switching.
Active audio-visual cues for boundary points were implemented, improving recognition efficiency in complex environments, simplifying the insertion process in hard soil, reducing wear risk, and enhancing structural stability and safety.
Smart Images

Figure CN224454205U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of surveying and mapping technology, specifically, it relates to a cadastral surveying boundary positioning sound and light prompt locator. Background Technology
[0002] In the field of cadastral surveying, the accurate marking of boundary points is the core link in determining the scope of land ownership and calculating the cadastral area. The accuracy and stability of these markings directly affect the effectiveness of subsequent work such as land ownership confirmation, handling of ownership disputes, and resource planning.
[0003] However, current boundary point markers lack active prompting functions, and after being inserted into the ground, they are easily tilted by external forces due to the lack of supporting structure. They are difficult to insert when facing hard soil, and if the bottom is too sharp, it is easy to wear and poses a safety hazard, while if it is too blunt, it is difficult to fix.
[0004] In view of this, this utility model is proposed. Utility Model Content
[0005] To address the problems of current boundary point markers lacking proactive warning functionality, being prone to tilting due to the lack of support structure after being inserted into the ground, being difficult to insert in hard soil, having a sharp bottom that is easily worn and poses a safety hazard, and being too blunt that is difficult to fix, the basic concept of the technical solution adopted in this utility model is as follows:
[0006] A cadastral survey boundary positioning audible and visual locator includes an audible and visual locator, a first connecting rod, a second connecting rod, and a connecting ring. The first connecting rod is fixedly connected to the bottom of the audible and visual locator. The first connecting rod and the second connecting rod are detachably connected via the connecting ring. The connecting ring is slidably mounted on the end of the second connecting rod. A cone head is connected to the end of the second connecting rod away from the first connecting rod. A protective cover is slidably mounted on the second connecting rod. A switchable sliding limit structure is provided between the protective cover and the second connecting rod. A base plate is fixedly connected to the bottom of the protective cover. A retaining ring is provided on the second connecting rod.
[0007] In a preferred embodiment of this utility model, the inner side of the connecting ring is provided with an internal thread, and the bottom of the first connecting rod is provided with an external thread that matches the internal thread.
[0008] In a preferred embodiment of the present invention, the bottom of the first connecting rod is provided with a positioning pin, and the corresponding position of the second connecting rod is provided with a positioning hole, wherein the positioning pin is inserted into the positioning hole.
[0009] In a preferred embodiment of the present invention, the sliding limiting structure includes a vertical sliding groove and a slot opened on the inner side of the protective cover, and a slider connected to the outer side of the second connecting rod, wherein the slider is adapted to the sliding groove and the slot.
[0010] In a preferred embodiment of this utility model, the connecting ring is sleeved on the end of the second connecting rod and can slide along the axial direction of the second connecting rod.
[0011] In a preferred embodiment of this utility model, the positioning pin is arranged along the axial direction of the first connecting rod, the positioning hole is opened along the axial direction of the second connecting rod, and the outer diameter of the positioning pin is adapted to the inner diameter of the positioning hole.
[0012] Compared with the prior art, the present invention has the following advantages:
[0013] This utility model can actively prompt with an audio-visual locator, making it convenient to quickly identify boundary points in complex environments. The cone-shaped design combined with a detachable structure makes it easy to insert into hard soil with the help of external force. The protective cover can be switched to protect the cone from wear and tear, reducing safety hazards. The bottom plate of the protective cover provides stable support and can prevent tilting.
[0014] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description
[0015] In the attached diagram:
[0016] Figure 1 A three-dimensional image of a cadastral survey boundary demarcation and audible / visual prompt locator;
[0017] Figure 2 A schematic diagram of a cadastral survey boundary demarcation audible and visual locator inserted into the soil;
[0018] Figure 3 A cross-sectional view of a cadastral survey boundary demarcation audible and visual locator;
[0019] Figure 4 A cadastral survey boundary positioning audible and visual prompt locator Figure 3 Enlarged view of point A in the middle;
[0020] Figure 5 A cadastral survey boundary positioning audible and visual prompt locator Figure 3 Enlarged view at point B in the middle;
[0021] Figure 6 This is a cross-sectional view of the protective cover and base plate of a cadastral survey boundary demarcation audible and visual prompt locator.
[0022] In the diagram: 1. Sound and light positioner; 2. First connecting rod; 3. Second connecting rod; 4. Connecting ring; 5. External thread; 6. Internal thread; 7. Positioning pin; 8. Positioning hole; 9. Cone head; 10. Protective cover; 11. Base plate; 12. Slider; 13. Slide groove; 14. Slot; 15. Retaining ring. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.
[0024] like Figures 1 to 6 As shown, a cadastral survey boundary positioning sound and light prompt locator includes a sound and light locator 1, a first connecting rod 2, a second connecting rod 3, and a connecting ring 4. The first connecting rod 2 is fixedly connected to the bottom of the sound and light locator 1. The first connecting rod 2 and the second connecting rod 3 are detachably connected through the connecting ring 4. The connecting ring 4 is slidably installed on the end of the second connecting rod 3. A cone head 9 is connected to the end of the second connecting rod 3 away from the first connecting rod 2. A protective cover 10 is slidably installed on the second connecting rod 3. A switchable sliding limit structure is provided between the protective cover 10 and the second connecting rod 3. A base plate 11 is fixedly connected to the bottom of the protective cover 10. A retaining ring 15 is provided on the second connecting rod 3. In this setup, the sound and light locator 1 mainly includes a sound-generating component and a light-emitting component, and is equipped with a simple control circuit and a battery. Through synchronized sound and light prompts, it emits conspicuous sound and light signals at the boundary point location, making it convenient for staff to quickly locate the location. The sound and light locator 1 forms an integral structure with the first connecting rod 2 and the second connecting rod 3. The cone head 9 is used to insert into the ground to fix the boundary point. The protective cover 10 can slide along the second connecting rod 3. When the cone head 9 is inserted, it contacts the ground to form support. The retaining ring 15 limits the sliding stroke of the protective cover 10. The connecting ring 4 enables convenient disassembly and assembly of the first connecting rod 2 and the second connecting rod 3.
[0025] like Figures 1 to 6 As shown, in a specific embodiment, the inner side of the connecting ring 4 is provided with an internal thread 6, and the bottom of the first connecting rod 2 is provided with an external thread 5 that matches the internal thread 6. In this configuration, the matching and cooperation of the internal thread 6 and the external thread 5 enable the connecting ring 4 to firmly connect the first connecting rod 2 and the second connecting rod 3. The thread engagement achieves stable fixation of the two, and they can be separated by rotating in the opposite direction, ensuring convenient assembly and disassembly.
[0026] like Figures 1 to 6 As shown, the first connecting rod 2 is further provided with a positioning pin 7 at its bottom, and the second connecting rod 3 is provided with a positioning hole 8 at the corresponding position. The positioning pin 7 is inserted into the positioning hole 8. In this configuration, the positioning pin 7 is inserted into the positioning hole 8, which can achieve pre-positioning before the first connecting rod 2 and the second connecting rod 3 are connected, ensuring that the two are coaxially aligned, avoiding misalignment of the internal thread 6 and the external thread 5 during connection, and improving assembly efficiency.
[0027] like Figures 1 to 6As shown, the sliding limiting structure further includes a vertical sliding groove 13 and a slot 14 opened on the inner side of the protective cover 10, and a slider 12 connected to the outer side of the second connecting rod 3. The slider 12 is adapted to the sliding groove 13 and the slot 14. In this configuration, when the slider 12 is engaged in the slot 14, it can restrict the sliding of the protective cover 10 to achieve the protection of the cone head 9. When the slider 12 slides into the sliding groove 13, the protective cover 10 can slide along the axial direction of the second connecting rod 3 to meet the position adjustment requirements when the cone head 9 is inserted. The conversion between protection and use functions is achieved by switching between the two states.
[0028] like Figures 1 to 6 As shown, the connecting ring 4 is further sleeved on the end of the second connecting rod 3 and can slide along the axial direction of the second connecting rod 3. In this configuration, the connecting ring 4 slides along the axial direction of the second connecting rod 3, and can slide to the position aligned with the external thread 5 of the first connecting rod 2 when connection is required, completing the connection between the internal thread 6 and the external thread 5. When disassembling, it slides out of the thread engagement area, facilitating the separation of the first connecting rod 2 and the second connecting rod 3, and enhancing the structural flexibility.
[0029] like Figures 1 to 6 As shown, furthermore, the locating pin 7 is arranged along the axial direction of the first connecting rod 2, and the locating hole 8 is opened along the axial direction of the second connecting rod 3. The outer diameter of the locating pin 7 matches the inner diameter of the locating hole 8. In this arrangement, the axially arranged locating pin 7 and locating hole 8 can accurately limit the first connecting rod 2 and the second connecting rod 3 in the axial direction. With the matching diameter size, it ensures that there is no radial wobble after the two are connected, improves the coaxiality and stability of the overall structure, and avoids damage to the internal thread 6 and the external thread 5 due to misalignment and stress.
[0030] The implementation principle of the cadastral survey boundary positioning audible and visual prompt locator in this embodiment is as follows: First, the assembly is completed through the detachable structure of the first connecting rod 2 and the second connecting rod 3. The positioning pin 7 at the bottom of the first connecting rod 2 is inserted into the corresponding positioning hole 8 of the second connecting rod 3 to achieve pre-positioning and ensure the coaxiality of the two. Then, the connecting ring 4 at the end of the second connecting rod 3 is slid so that the internal thread 6 on the inner side of the connecting ring 4 engages with the external thread 5 at the bottom of the first connecting rod 2. Rotating the connecting ring 4 completes the fastening connection. Disassembly can be performed by reversing the operation. This convenient disassembly design is particularly practical in special scenarios. When encountering hard soil and difficulty in manually pressing to insert the cone 9 into the ground, the audible and visual locator 1 together with the first connecting rod 2 can be removed from the second connecting rod 3. The second connecting rod 3 can be directly struck with a tool to use external force to insert the cone. 9. The cone 9 at the bottom of the second connecting rod 3 is used to insert into the ground to fix the boundary point. The protective cover 10 on the outside of the second connecting rod 3 achieves state switching through a sliding limit structure. In the initial state, the slider 12 on the outside of the second connecting rod 3 is inserted into the slot 14 on the inside of the protective cover 10. The protective cover 10 covers the cone 9, and the bottom plate 11 forms protection. When in use, the protective cover 10 is rotated so that the slider 12 slides into the vertical slide groove 13. The protective cover 10 can slide along the axis of the second connecting rod 3. When the cone 9 is inserted into the ground, the bottom plate 11 contacts the ground and gradually moves upward as the cone goes deeper until it contacts and limits the contact with the retaining ring 15. At this time, the bottom plate 11 is in contact with the ground to form a stable support. The sound and light locator 1 provides a clear mark at the boundary point position through the sound and light prompt function, which facilitates the quick identification and confirmation of the cadastral range in the later stage.
Claims
1. A cadastral survey boundary demarcation audible and visual locator, comprising an audible and visual locator (1), a first connecting rod (2), a second connecting rod (3), and a connecting ring (4), characterized in that, The acoustic-optical positioner (1) is fixedly connected to a first connecting rod (2) at its bottom. The first connecting rod (2) and the second connecting rod (3) are detachably connected by a connecting ring (4). The connecting ring (4) is slidably installed on the end of the second connecting rod (3). A cone head (9) is connected to the end of the second connecting rod (3) away from the first connecting rod (2). A protective cover (10) is slidably installed on the second connecting rod (3). A switchable sliding limit structure is provided between the protective cover (10) and the second connecting rod (3). A base plate (11) is fixedly connected to the bottom of the protective cover (10). A retaining ring (15) is provided on the second connecting rod (3).
2. The audible and visual locator for pinpointing boundary markers for cadastral mapping of claim 1, wherein, The inner side of the connecting ring (4) is provided with an internal thread (6), and the bottom of the first connecting rod (2) is provided with an external thread (5) that is compatible with the internal thread (6).
3. The audible and visual locator for pinpointing boundary corners for cadastral mapping of claim 1, wherein, The first connecting rod (2) has a positioning pin (7) at its bottom, and the second connecting rod (3) has a positioning hole (8) at the corresponding position. The positioning pin (7) and the positioning hole (8) are inserted into each other.
4. The audible and visual locator for pinpointing boundary corners for cadastral mapping of claim 1, wherein, The sliding limit structure includes a vertical slide groove (13) and a slot (14) opened on the inner side of the protective cover (10) and a slider (12) connected to the outer side of the second connecting rod (3). The slider (12) is adapted to the slide groove (13) and the slot (14).
5. The audible and visual locator for pinpointing boundary corners for cadastral mapping of claim 1, wherein, The connecting ring (4) is sleeved on the end of the second connecting rod (3) and can slide along the axial direction of the second connecting rod (3).
6. The audible and visual locator for pinpointing boundary corners for cadastral mapping of claim 3, wherein, The positioning pin (7) is arranged along the axial direction of the first connecting rod (2), the positioning hole (8) is opened along the axial direction of the second connecting rod (3), and the outer diameter of the positioning pin (7) is adapted to the inner diameter of the positioning hole (8).