Fixing mechanism for real estate surveying and mapping equipment

By designing a gear and rack mechanism with a support frame and locking pin assembly, the problem of bulkiness and inconvenience in the handling and maintenance of real estate surveying equipment was solved, enabling rapid fixing and disassembly, improving work efficiency and equipment stability, and extending service life.

CN224174883UActive Publication Date: 2026-04-28SHANDONG SENMAITU SURVEYING & MAPPING GEOGRAPHICAL INFORMATION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG SENMAITU SURVEYING & MAPPING GEOGRAPHICAL INFORMATION CO LTD
Filing Date
2025-08-06
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

The fixed structure of existing real estate surveying equipment is bulky, inconvenient, and costly to transport and maintain, which affects work progress and the service life of the equipment.

Method used

A fixing mechanism including a support frame, a rotating shaft, a connecting sleeve, a locking pin assembly, and a gear and rack mechanism was designed. The gear and rack meshing transmission enables quick fixing and disassembly, and the elastic locking of the locking pin assembly improves the stability and ease of operation of the equipment.

Benefits of technology

It enables rapid fixing and disassembly of surveying equipment, improves work efficiency, enhances equipment stability and applicability, extends service life, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of real estate surveying and mapping, and discloses a fixing mechanism for real estate surveying and mapping equipment, which comprises a support frame, the top of the support frame is fixedly connected with a fixing disc, the middle of the fixing disc is rotatably connected with a rotating shaft, and the top of the rotating shaft is slidably connected with a connecting sleeve. A surveying instrument is fixedly connected to the top of the connecting sleeve, a lock pin assembly is fixedly connected to the outer wall of the connecting sleeve, a protective shell is fixedly connected to the bottom of the supporting frame, a sliding rail is fixedly connected to the outer wall of the protective shell, a rack is fixedly connected to the inner side of the sliding rail, and a fixing plate is fixedly connected to the front side of the sliding rail. According to the utility model, when the support needs to be fixed more stably, the connecting shaft is driven to rotate by rotating the handle, and then the gear is driven to rotate. Rotation of the gear drives the rack to move downwards, the connecting rod is pushed, the fixing cone is inserted downwards, and therefore the supporting frame is firmly fixed.
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Description

Technical Field

[0001] This utility model relates to the field of real estate surveying technology, and in particular to a fixing mechanism for real estate surveying equipment. Background Technology

[0002] Real estate surveying equipment is a specialized instrument used to measure, collect, process, and analyze the spatial location, shape, area, ownership boundaries, and other properties such as land, houses, buildings, and structures. Through precise measurement techniques, this equipment provides data support for real estate registration, property rights delimitation, planning and construction, and demolition assessment, making it an indispensable tool in the field of real estate management.

[0003] Real estate surveying equipment typically employs a fixed structural design, which has several drawbacks. Fixed-structure equipment is cumbersome and inconvenient to handle and move, causing numerous inconveniences for on-site operations.

[0004] The fixed structure of the equipment is difficult to maintain and upgrade. Once a problem occurs, it needs to be replaced as a whole or undergo large-scale disassembly and repair. This not only increases maintenance costs but also affects the progress of surveying work. Therefore, a fixed mechanism for real estate surveying equipment is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a fixing mechanism for real estate surveying equipment, aiming to improve the problem of difficult handling in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A fixing mechanism for real estate surveying equipment includes a support frame, a fixing plate fixedly connected to the top of the support frame, a rotating shaft rotatably connected to the middle of the fixing plate, a connecting sleeve slidably connected to the top of the rotating shaft, a surveying instrument fixedly connected to the top of the connecting sleeve, a locking pin assembly fixedly connected to the outer wall of the connecting sleeve, a protective shell fixedly connected to the bottom of the support frame, a slide rail fixedly connected to the outer wall of the protective shell, a rack fixedly connected to the inner side of the slide rail, a fixing plate fixedly connected to the front side of the slide rail, a connecting shaft rotatably connected inside the fixing plate, a gear fixedly connected to one end of the connecting shaft, a rotating handle fixedly connected to the other end of the connecting shaft, the gear and the rack meshing, a connecting rod fixedly connected to the bottom of the rack, and a fixing cone fixedly connected to the end of the connecting rod away from the slide rail.

[0008] As a further description of the above technical solution:

[0009] The locking pin assembly includes a locking sleeve, which is fixedly connected to the left side of the connecting sleeve. A fixing block is slidably connected inside the locking sleeve, and a pull pin is fixedly connected to the middle of the fixing block. A locking spring is sleeved on the outside of the pull pin.

[0010] As a further description of the above technical solution:

[0011] The inner side of the protective shell is slidably connected with a fixing pin;

[0012] As a further description of the above technical solution:

[0013] The rotating shaft is rotatably connected to the middle of the support frame;

[0014] As a further description of the above technical solution:

[0015] The pull pin is slidably connected to the inside of the lock sleeve;

[0016] As a further description of the above technical solution:

[0017] One end of the locking spring is fixedly connected to the inner wall of the lock sleeve, and the other end of the locking spring is fixedly connected to the outer side of the fixing block;

[0018] As a further description of the above technical solution:

[0019] The pull pin passes through the connecting sleeve and is fixedly connected to the inside of the rotating shaft;

[0020] As a further description of the above technical solution:

[0021] The fixing pin passes through the slide rail and is fixedly connected to the inside of the rack.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, when a more stable fixing bracket is needed, the handle is turned to drive the connecting shaft to rotate, which in turn drives the gear to rotate. The rotation of the gear causes the rack to move downward, pushing the connecting rod and causing the fixing cone to insert downward, thereby firmly fixing the support frame.

[0024] 2. In this utility model, when it is necessary to disassemble the surveying instrument, the pull pin is pulled, and the pull pin moves the fixing block accordingly. Through the squeezing action of the fixing block on the spring, the pull pin can be smoothly disengaged from the rotating shaft, thereby separating the surveying instrument from the support frame and realizing quick disassembly. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a fixing mechanism for real estate surveying equipment proposed in this utility model;

[0026] Figure 2 for Figure 1Enlarged view of point A in the middle;

[0027] Figure 3 This is a schematic diagram of the structure of a pull pin for a fixing mechanism of real estate surveying equipment proposed in this utility model.

[0028] Legend:

[0029] 1. Support frame; 2. Locking pin assembly; 3. Fixing plate; 4. Rotating shaft; 5. Connecting sleeve; 6. Surveying instrument; 7. Connecting rod; 8. Protective shell; 9. Gear; 10. Slide rail; 11. Rack; 12. Fixing cone; 13. Fixing pin; 14. Fixing plate; 15. Rotating handle; 16. Fixing block; 17. Pull pin; 18. Locking sleeve; 19. Locking spring; 20. Connecting shaft. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figures 1-2This utility model provides an embodiment of a fixing mechanism for real estate surveying equipment, comprising a support frame 1, a fixing plate 3 fixedly connected to the top of the support frame 1, a rotating shaft 4 rotatably connected to the middle of the fixing plate 3, the rotating shaft 4 being rotatably connected to the middle of the support frame 1, a connecting sleeve 5 slidably connected to the top of the rotating shaft 4, a surveying instrument 6 fixedly connected to the top of the connecting sleeve 5, a locking pin assembly 2 fixedly connected to the outer wall of the connecting sleeve 5, a protective shell 8 fixedly connected to the bottom of the support frame 1, a slide rail 10 fixedly connected to the outer wall of the protective shell 8, a rack 11 fixedly connected to the inner side of the slide rail 10, and a fixing plate 14 fixedly connected to the front side of the slide rail 10. A connecting shaft 20 is rotatably connected inside plate 14. A gear 9 is fixedly connected to one end of the connecting shaft 20, and a rotating handle 15 is fixedly connected to the other end. Gear 9 meshes with rack 11. A connecting rod 7 is fixedly connected to the bottom of rack 11. A fixing cone 12 is fixedly connected to the end of connecting rod 7 away from slide rail 10. A fixing pin 13 is slidably connected to the inside of protective shell 8. The fixing pin 13 passes through slide rail 10 and is fixedly connected to the inside of rack 11. The fixing cone 12 is driven by the meshing of gear 9 and rack 11. Compared to the traditional manual insertion method, this is more labor-saving and convenient, allowing for quick fixation of the mechanism and improving work efficiency. Secondly, the setting of fixing pin 13 further enhances the stability of the fixation, preventing the mechanism from shaking due to external factors during surveying and ensuring the accuracy of survey data. Furthermore, the cooperation between rotating shaft 4 and connecting sleeve 5 makes the position adjustment of surveying instrument 6 more flexible, adaptable to different surveying scenarios and needs, and expanding the applicability of the equipment. In addition, the protective shell 8 provides excellent protection for the internal gears 9 and racks 11, reducing the corrosion of components by external dust and rainwater and extending the service life of the equipment. Meanwhile, the overall structure is compact and rationally designed, with all components securely connected, and the operation is simple and easy to understand, facilitating use and maintenance by staff.

[0032] Reference Figure 3The locking pin assembly 2 includes a locking sleeve 18, which is fixedly connected to the left side of the connecting sleeve 5. A fixing block 16 is slidably connected inside the locking sleeve 18. A pull pin 17 is fixedly connected to the middle of the fixing block 16. The pull pin 17 passes through the connecting sleeve 5 and is fixedly connected to the inner side of the rotating shaft 4. The pull pin 17 is slidably connected to the inner side of the locking sleeve 18. A locking spring 19 is sleeved on the outer side of the pull pin 17. One end of the locking spring 19 is fixedly connected to the inner wall of the locking sleeve 18, and the other end of the locking spring 19 is fixedly connected to the outer side of the fixing block 16. By simply pulling and releasing the pull pin 17, the fixed relationship between the connecting sleeve 5 and the rotating shaft 4 can be quickly released and restored without complicated tools and operating steps, saving adjustment time and improving work efficiency. In addition, the fixing effect is stable and reliable. The elastic force of the locking spring 19 ensures that the pull pin 17 remains fixed to the rotating shaft 4. Even if the equipment is subjected to slight vibration or impact during the surveying process, the pull pin 17 is not easily loosened, ensuring that there is no relative slippage between the connecting sleeve 5 and the rotating shaft 4, thus guaranteeing the stability of the surveying instrument 6 and ensuring the accuracy of the surveying data. Furthermore, the structure is highly durable. The locking sleeve 18 provides good protection for the pull pin 17 and the locking spring 19, reducing the wear and corrosion of internal components by the external environment. At the same time, the locking spring 19 is made of a highly elastic material, which can withstand multiple compression and reset operations, resulting in a long service life and reducing the maintenance cost and replacement frequency of the components.

[0033] Working Principle: When it is necessary to fix the support frame 1, this is achieved by rotating the handle 15. Rotating the handle 15 causes the connecting shaft 20 to rotate. The rotation of the connecting shaft 20 is further transmitted to the gear 9, causing it to rotate. The rotation of the gear 9 generates a series of chain reactions, causing the rack 11 to move downwards in a specific direction. The downward movement of the rack 11 pushes the connecting rod 7, causing it to displace accordingly. The displacement of the connecting rod 7 ultimately causes the fixing cone 12 to insert downwards into a predetermined position. The insertion of the fixing cone 12 makes the entire support frame 1 more robust and stable, effectively fixing the entire structure. When disassembling the surveying instrument 6, the pull pin 17 needs to be pulled. When the pull pin 17 is pulled, it moves the fixing block 16 along with it. During the movement, the fixing block 16 applies a squeezing force to the locking spring 19, allowing the pull pin 17 to smoothly disengage from the rotating shaft 4. Once the pull pin 17 successfully disengages from the rotating shaft 4, the surveying instrument 6 can be separated from the support frame 1, thus achieving a quick disassembly process.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fixing mechanism for real estate surveying equipment, comprising a support frame (1), characterized in that: The support frame (1) is fixedly connected to a fixed plate (3) at the top. A rotating shaft (4) is rotatably connected to the middle of the fixed plate (3). A connecting sleeve (5) is slidably connected to the top of the rotating shaft (4). A surveying instrument (6) is fixedly connected to the top of the connecting sleeve (5). A locking pin assembly (2) is fixedly connected to the outer wall of the connecting sleeve (5). A protective shell (8) is fixedly connected to the bottom of the support frame (1). A slide rail (10) is fixedly connected to the outer wall of the protective shell (8). A rack is fixedly connected to the inner side of the slide rail (10). (11) A fixing plate (14) is fixedly connected to the front side of the slide rail (10). A connecting shaft (20) is rotatably connected inside the fixing plate (14). A gear (9) is fixedly connected to one end of the connecting shaft (20). A rotating handle (15) is fixedly connected to the other end of the connecting shaft (20). The gear (9) meshes with the rack (11). A connecting rod (7) is fixedly connected to the bottom of the rack (11). A fixing cone (12) is fixedly connected to the end of the connecting rod (7) away from the slide rail (10).

2. The fixing mechanism for real estate surveying equipment according to claim 1, characterized in that: The locking pin assembly (2) includes a locking sleeve (18), which is fixedly connected to the left side of the connecting sleeve (5). A fixing block (16) is slidably connected inside the locking sleeve (18). A pull pin (17) is fixedly connected in the middle of the fixing block (16), and a locking spring (19) is sleeved on the outside of the pull pin (17).

3. The fixing mechanism for real estate surveying equipment according to claim 1, characterized in that: A fixing pin (13) is slidably connected to the inner side of the protective shell (8).

4. The fixing mechanism for real estate surveying equipment according to claim 1, characterized in that: The rotating shaft (4) is rotatably connected to the middle of the support frame (1).

5. A fixing mechanism for real estate surveying equipment according to claim 2, characterized in that: The pull pin (17) is slidably connected to the inside of the lock sleeve (18).

6. A fixing mechanism for real estate surveying equipment according to claim 2, characterized in that: One end of the locking spring (19) is fixedly connected to the inner wall of the lock sleeve (18), and the other end of the locking spring (19) is fixedly connected to the outside of the fixing block (16).

7. A fixing mechanism for real estate surveying equipment according to claim 2, characterized in that: The pull pin (17) passes through the connecting sleeve (5) and is fixedly connected to the inside of the rotating shaft (4).

8. A fixing mechanism for real estate surveying equipment according to claim 3, characterized in that: The fixing pin (13) passes through the slide rail (10) and is fixedly connected to the inside of the rack (11).