Measuring prism with anti-shaking structure
By designing an anti-sway structure and utilizing components such as a prism fixing base, support base, and vertical load, the problem of the measuring prism not being level due to environmental changes is solved, enabling it to automatically maintain a level position and improving the convenience and accuracy of surveying work.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGYIN XIANGJIANG PHOTOELECTRIC INSTR
- Filing Date
- 2025-03-27
- Publication Date
- 2026-05-08
AI Technical Summary
Existing measuring prisms are prone to becoming misaligned during installation and use due to environmental changes such as collisions or vibrations, requiring manual adjustment and affecting efficiency.
The structure employs an anti-sway design, including components such as a prism mounting base, a support base, an anti-sway ring, and a vertical load-bearing system. Through threaded connections and gravity, the support base remains vertical, ensuring that the prism assembly remains horizontal.
After installation on a non-flat surface, the prism automatically maintains a horizontal position without the need for manual adjustment, adapting to environmental changes and improving the convenience and accuracy of surveying work.
Smart Images

Figure CN224216933U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of prism technology, and in particular to a measuring prism with an anti-shake structure. Background Technology
[0002] Currently, due to the large-scale construction work such as rail transit and urban development, the market has placed higher demands on the positional accuracy of inspection prisms. Due to changes in the fixed position, even a slight adjustment can greatly affect the accuracy of the prism's horizontal position, causing the prism to be fixed horizontally. This requires repeated adjustments to the fixing angle of the prism bracket or the horizontal adjustment knob of the bracket to bring the prism bracket back to the horizontal position. When there are slight changes in the environment in which the prism bracket is fixed, such as collisions or vibrations, it can also lead to the prism being fixed horizontally.
[0003] Existing measuring prisms require manual adjustment by staff during installation and use, as the support itself cannot self-adjust, which has certain adverse effects on the user experience. To address the shortcomings of existing technologies, we propose a measuring prism with an anti-shake structure. Utility Model Content
[0004] The main objective of this invention is to provide a measuring prism with an anti-shake structure, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A measuring prism with an anti-sway structure includes a prism assembly. A prism mounting base is located below the prism assembly. A cylinder is positioned at the center of the bottom of the prism assembly and inserted into a corresponding circular hole on the inner wall of the prism mounting base. A tightening screw is located on the outer side of the prism mounting base. A support base is located below the prism mounting base. A small anti-sway ring is located on the outer side of the support base. A large anti-sway ring is located on the outer side of the small anti-sway ring. A fixing outer ring seat is located on the outer side of the large anti-sway ring. Symmetrical arrangements are made on the outer sides of both the support base and the small anti-sway ring. Two sets of anti-sway ring pins are provided. Two sets of outer ring seat pins are symmetrically arranged on the outer side of the large support anti-sway ring. The support base, small support anti-sway ring and large support anti-sway ring have the same thickness. A support frame base is provided below the fixed outer ring seat. Three sets of support shafts are provided between the support frame base and the fixed outer ring seat. Three sets of base adjustment feet are provided on the inner wall of the support frame base. A vertical load is provided at the lower middle position of the fixed outer ring seat. A load shaft is provided between the upper outer surface of the vertical load and the lower outer surface of the support base. Both ends of the load shaft are threaded on the outer side.
[0007] Preferably, the cylinder at the lower end of the prism assembly is inserted into the circular hole in the inner wall of the prism mounting base, and is detachably connected to the prism mounting base by a tightening screw. The prism mounting base is detachably connected to the threaded hole in the inner wall of the support base by an external thread located at the bottom.
[0008] Preferably, the support base is movably connected to the inner middle of the small support anti-sway ring by a set anti-sway ring pin, and the small support anti-sway ring is movably connected to the inner middle of the large support anti-sway ring by two other sets of anti-sway ring pins.
[0009] Preferably, the large support anti-sway ring is movably connected to the middle interior of the fixed outer ring seat by a set outer ring seat pin, and the fixed outer ring seat is fixedly installed above the support frame base by a set support shaft.
[0010] Preferably, the base adjustment foot passes through the inner wall of the support frame base and is detachably connected to the support frame base through an external thread on the outer side of the base adjustment foot and a threaded hole corresponding to the inner wall of the support frame base.
[0011] Preferably, the load-bearing shaft is detachably connected to the vertical load and the support frame base via threaded holes on the outer sides of both ends, corresponding to the threaded holes on the inner wall of the upper end of the vertical load and the inner wall of the lower end of the support base.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] In this invention, when the measuring prism needs to be installed on a non-flat plane, the height of the base feet of the equipment can be adjusted appropriately to prevent the measuring prism from tipping over or overturning on the plane. Since the vertical load is affected by gravity, it will always be perpendicular to the horizontal plane. The way the anti-sway ring is fixed to the support base allows the support base to rotate freely in the anti-sway ring. Because the vertical load is connected to the support base, it can be ensured that the support base is always perpendicular to the horizontal plane, so that the prism also remains horizontal.
[0014] In this invention, when the position of the prism assembly is adjusted, the detection prism can always remain in a relatively horizontal position. After the prism assembly is repositioned and fixed, the detection prism will also quickly return to a horizontal position without any additional adjustment. When the prism assembly moves due to environmental changes, the detection prism will remain horizontal due to the influence of the mechanism and will not require adjustment. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is an exploded structural diagram of the present invention.
[0017] In the diagram: 01. Prism assembly; 02. Prism mounting base; 03. Tightening screw; 04. Support base; 05. Small support anti-sway ring; 06. Large support anti-sway ring; 07. Fixed outer ring seat; 08. Anti-sway ring pin; 09. Outer ring seat pin; 10. Support shaft; 11. Load-bearing shaft; 12. Vertical load; 13. Base adjusting feet; 14. Support frame base. Detailed Implementation
[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0019] Example 1, as Figures 1-2 As shown, a measuring prism with an anti-sway structure is first fixed to the support base 04 and the small support anti-sway ring 05 by the anti-sway ring pin 08. Then, the small support anti-sway ring 05 is connected to the large support anti-sway ring 06 by the anti-sway ring pin 08. The large support anti-sway ring 06 is connected to the fixed outer ring seat 07 by the outer ring seat pin 09. Finally, the support base 04 is in the middle of the fixed outer ring seat 07 and can rotate freely. The load shaft 11 and the vertical load 12 are locked by threads. Then, the load shaft 11 is locked to the support base 04 by threads. The fixed outer ring seat 07 is fixed to the support frame base 14 by the support shaft 10. The base adjustment foot 13 is installed on the support frame base 14. By adjusting the height of the base adjustment foot 13, the equipment is kept in a relatively horizontal position.
[0020] Example 2, as Figures 1-2 As shown, a measuring prism with an anti-shake structure allows for 360° rotation. When the angle of the prism assembly 01 needs to be adjusted, a tightening screw 03 is installed on the outside of the prism mounting base 02. The prism mounting base 02 is threaded onto the support base 04, and the prism assembly 01 is installed in the prism mounting base 02. The rotation direction is fixed by the tightening screw 03. The device can be placed on any plane, and the height of the adjustable feet 13 can be adjusted appropriately to ensure that the device will not tip over. The vertical load 12 will always be perpendicular to the horizontal plane due to gravity, so that the prism assembly 01 also remains horizontal, facilitating personnel to perform surveying work.
[0021] It should be noted that this utility model is a measuring prism with an anti-sway structure. In use, firstly, the support base 04 and the small support anti-sway ring 05 are assembled together using anti-sway ring pins 08. The anti-sway ring pins 08 and the small support anti-sway ring 05 are tightly fitted, allowing the support base 04 to rotate within the small support anti-sway ring 05. Then, the small support anti-sway ring 05 is assembled and connected to the large support anti-sway ring 06 using the anti-sway ring pins 08. The anti-sway ring pins 08 and the small support anti-sway ring 06 are tightly fitted, allowing the small support anti-sway ring 05 to rotate within the large support anti-sway ring 06. Finally, the large support anti-sway ring 06 is assembled and connected to the fixed outer ring base 07 using outer ring base pins 09. The outer ring base pins 09 and the fixed outer ring base 07 are tightly fitted, ensuring the large support anti-sway ring... 06 can rotate in the middle of the fixed outer ring seat 07, so that the support seat 04 is in the middle of the fixed outer ring seat 07 and can rotate freely. The load shaft 11 and the vertical load 12 are locked by threads, and the load shaft 11 and the support seat 04 are locked by threads. The support shaft 10 is used to fix the fixed outer ring seat 07 and the support frame base 14. The base adjustment foot 13 is installed on the support frame base 14. By adjusting the height of the base adjustment foot 13, the equipment is kept in a relatively horizontal position. The tightening screw 03 is installed on the outside of the prism fixing seat 02. The prism fixing seat 02 is installed on the support seat 04 by threads. The prism group 01 is installed in the prism fixing seat 02 and can rotate 360°. The rotation direction is fixed by the tightening screw 03. The equipment can be placed on any flat surface. By adjusting the height of the base and adjusting the toe 13, the equipment will not tip over. The vertical load 12 will always be perpendicular to the horizontal plane due to gravity, so that the prism group 01 will also remain horizontal. During the surveying process, when the position is adjusted and fixed repeatedly, the surveying prism will always remain horizontal and will not be affected by position changes. Workers do not need to repeatedly adjust and confirm the level of the support, which is convenient for personnel to carry out surveying work.
[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A measuring prism with an anti-shake structure, comprising a prism assembly (01), characterized in that: A prism mounting base (02) is provided below the prism assembly (01). A cylinder is provided at the middle of the bottom of the prism assembly (01) and is inserted into the corresponding circular hole on the inner wall of the prism mounting base (02). A tightening screw (03) is provided on the outer side of the prism mounting base (02). A support base (04) is provided below the prism mounting base (02). A small support anti-sway ring (05) is provided on the outer side of the support base (04). A large support anti-sway ring (06) is provided on the outer side of the small support anti-sway ring (05). A fixed outer ring seat (07) is provided on the outer side of the large support anti-sway ring (06). Two sets of anti-sway ring pins (08) are symmetrically provided on the outer sides of both the support base (04) and the small support anti-sway ring (05). Two sets of outer ring seat pins (09) are symmetrically arranged on the outer side of the anti-sway ring (06). The thickness of the support seat (04), the small support anti-sway ring (05) and the large support anti-sway ring (06) is the same. A support frame base (14) is arranged below the fixed outer ring seat (07). Three sets of support shafts (10) are arranged between the support frame base (14) and the fixed outer ring seat (07). Three sets of base adjustment feet (13) are arranged on the inner wall of the support frame base (14). A vertical load (12) is arranged at the middle position below the fixed outer ring seat (07). A load shaft (11) is arranged between the upper outer surface of the vertical load (12) and the lower outer surface of the support seat (04). Threads are arranged on the outer sides of both ends of the load shaft (11).
2. A measuring prism with an anti-shake structure according to claim 1, characterized in that: The cylinder at the lower end of the prism assembly (01) is inserted into the round hole in the inner wall of the prism mounting base (02), and is detachably connected to the prism mounting base (02) by a tightening screw (03). The prism mounting base (02) is detachably connected to the threaded hole in the inner wall of the support base (04) by an external thread located below.
3. A measuring prism with an anti-shake structure according to claim 1, characterized in that: The bracket base (04) is movably connected to the middle interior of the small bracket anti-sway ring (05) by two sets of anti-sway ring pins (08), and the small bracket anti-sway ring (05) is movably connected to the middle interior of the large bracket anti-sway ring (06) by two other sets of anti-sway ring pins (08).
4. A measuring prism with an anti-shake structure according to claim 1, characterized in that: The large support anti-sway ring (06) is movably connected to the middle interior of the fixed outer ring seat (07) by two sets of outer ring seat pins (09). The fixed outer ring seat (07) is fixedly installed above the support frame base (14) by a support shaft (10).
5. A measuring prism with an anti-shake structure according to claim 1, characterized in that: The base adjustment tip (13) passes through the inner wall of the support frame base (14) and is detachably connected to the support frame base (14) through the external thread on the outside of the base adjustment tip (13) and the threaded hole corresponding to the inner wall of the support frame base (14).
6. A measuring prism with an anti-shake structure according to claim 1, characterized in that: The load shaft (11) is detachably connected to the vertical load (12) through threaded holes on the upper inner wall of the vertical load (12) and the lower inner wall of the support seat (04) located on the outer sides of both ends.