Micro-prism fixing device and micro-prism combined structure

CN224922091UActive Publication Date: 2026-10-30SHANDONG LUQIAO GROUP CO LTD +1
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Patent Information

Application Number
CN202522779303.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-29
Publication Date
2026-10-30
Estimated Expiration
2035-12-29

AI Technical Summary

Technical Problem

由于施工放样过程中,测量员手扶棱镜杆,一定会引起一定误差,导致施工放样精度较低

Benefits of technology

[0017] This invention stably mounts a miniature prism on a base and allows it to rotate at multiple angles, assisting surveyors in setting up the prism and effectively improving the accuracy of construction layout. By fixing the miniature prism with a longitudinal moving component and a fixed base, it replaces the surveyor's manual operation, filling a gap in existing technology.

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Abstract

The utility model provides a kind of micro-prism fixing device and micro-prism combination structure, the micro-prism fixing device includes first pedestal, the top side of first pedestal is fixedly installed with support rod, longitudinally moving assembly is movably sheathed on the support rod, one end of longitudinally moving assembly is connected with one end of rotary adjusting assembly, the other end of rotary adjusting assembly is connected with second pedestal, prism fixing assembly is installed on the second pedestal.The utility model has the beneficial effects as follows, the utility model can install micro-prism on pedestal stably, and can be multi-angle rotation, auxiliary surveyor erects prism, effectively improves construction lofting precision, micro-prism is fixed by longitudinally moving assembly and fixed pedestal, replaces surveyor hand to hold prism, fills the application blank of prior art.
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Description

Technical Field

[0001] This utility model relates to a micro prism fixing device and a micro prism assembly structure, belonging to the field of engineering surveying. Background Technology

[0002] As a core piece of equipment in modern engineering surveying, the total station integrates electronic angle measurement (horizontal and vertical angles), electronic distance measurement, and microprocessor data processing functions, completely revolutionizing traditional construction layout methods. Its working principle involves aiming the telescope at the target point, accurately measuring the horizontal angle, vertical angle, and slope distance from the instrument center to the target point, and combining this with built-in calculation programs (such as coordinate forward and inverse calculations, resection, etc.) and known control point coordinates to calculate and indicate the precise spatial position (plane position XY and elevation H) of the point to be laid out in real time.

[0003] In the precision positioning technology of total station construction and layout, the prism is far more than a simple reflecting tool. As a "cooperative target," its core function is to efficiently, stably, and accurately reflect the infrared or laser signals emitted by the total station back to the instrument. Its specially designed corner reflector array (usually composed of three mutually perpendicular reflecting surfaces) is directional, capable of reflecting incident light parallel to the original path back to the light source, greatly improving signal reception strength and ranging accuracy. Compared to non-cooperative targets (such as natural objects), the prism significantly reduces the effects of signal attenuation, atmospheric disturbance, and background light interference, providing a physical guarantee for achieving millimeter-level or even sub-millimeter-level ranging accuracy.

[0004] In construction layout, the center of the prism represents the physical location of the point to be laid out on the actual site. The process by which the surveyor holds the prism rod and precisely aligns the center of the prism with the design point is the process of practically marking the design location. Because the surveyor's hand holding the prism rod during construction layout will inevitably introduce some error, the accuracy of the construction layout will be relatively low. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a micro prism fixing device and a micro prism assembly structure.

[0006] According to a first aspect of the present invention, a miniature prism fixing device is provided, including a first base, a support rod fixedly installed on one side of the top of the first base, a longitudinal moving component movably sleeved on the support rod, one end of the longitudinal moving component being connected to one end of a rotation adjustment component, the other end of the rotation adjustment component being connected to a second base, and a prism fixing component being installed on the second base.

[0007] Furthermore, the longitudinal moving assembly includes a sleeve and a first locking mechanism. The sleeve is sleeved on the support rod, and the first locking mechanism is threadedly connected to the sleeve. The end of the first locking mechanism movably passes through the sleeve and abuts against and is fixed to the outer side surface of the support rod.

[0008] Furthermore, the rotary adjustment assembly includes a connecting rod and two rotary components. The two rotary components are movably connected to both ends of the connecting rod, and the ends of the two rotary components away from the connecting rod are respectively connected and fixed to the sleeve and the second base.

[0009] Furthermore, the rotating assembly includes a connecting block and a rotating joint. Two double-ear connection points formed by the rotating joint are symmetrically provided on one side of the connecting block, and a single-ear connection point formed by the rotating joint is provided in the middle of the other side of the connecting block.

[0010] Furthermore, the two ear connection points on the two rotating components are respectively connected and fixed to the end of the connecting rod by bolt locking components.

[0011] Furthermore, both the longitudinal moving component and the second base are provided with a set of double-ear connection points on their outer surfaces, and the double-ear connection points are also connected and fixed to the single-ear connection points on the rotating component by a set of bolt locking components.

[0012] Furthermore, the bolt locking assembly includes a bolt and a nut, the bolt passing through the double-ear connection point and the single-ear connection point, and the nut being connected to the end of the bolt.

[0013] Furthermore, the prism fixing assembly includes two clamps symmetrically arranged inside the second base, and a lateral adjustment mechanism is fixed on the opposite side of the two clamps, the lateral adjustment mechanism being threaded onto the second base.

[0014] Furthermore, both the lateral adjustment mechanism and the first locking mechanism are bolt structures.

[0015] According to a second aspect of the present invention, a microprism assembly structure is provided, wherein, based on the above-described microprism fixing device, the microprism is mounted on the second base via the prism fixing assembly.

[0016] The beneficial effects of this utility model are:

[0017] This invention stably mounts a miniature prism on a base and allows it to rotate at multiple angles, assisting surveyors in setting up the prism and effectively improving the accuracy of construction layout. By fixing the miniature prism with a longitudinal moving component and a fixed base, it replaces the surveyor's manual operation, filling a gap in existing technology.

[0018] This utility model adopts a modular design with fewer components and is easy to assemble, which reduces manufacturing costs and maintenance difficulty. In addition, its fixing device can move up and down and rotate at multiple angles, enabling the microprism to be used in complex environments. At the same time, it can ensure data accuracy and reduce instrument shaking through a stable fixing device, ensuring high reliability of measurement results.

[0019] This utility model is easy to operate and has a simple installation process. It can quickly assemble the microprism and the device without complicated tools, which significantly improves on-site work efficiency. In addition, its fixing device has high compatibility and can be adapted to standard microprisms. It has a wide range of applications and can be flexibly used for construction layout in different engineering scenarios. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 Isometric side view of a miniature prism fixing device of this utility model Figure 1 ;

[0022] Figure 2 This is a side view of a miniature prism fixing device according to the present invention;

[0023] Figure 3 Isometric side view of a miniature prism fixing device of this utility model Figure 2 ;

[0024] Figure 4 This is a partial structural schematic diagram of a micro prism fixing device according to the present invention.

[0025] In the figure, 100 is the first base; 200 is the support rod; 300 is the longitudinal movement assembly; 310 is the sleeve; 320 is the first locking mechanism; 400 is the rotation adjustment assembly; 410 is the connecting rod; 420 is the rotation assembly; 421 is the connecting block; 422 is the rotation joint; 4221 is the bolt locking assembly; 500 is the second base; 600 is the prism fixing assembly; 610 is the clamping plate; and 620 is the lateral adjustment mechanism. Detailed Implementation

[0026] 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.

[0027] Example 1

[0028] Please see Figures 1-4 This utility model provides a technical solution for a micro prism fixing device, including a first base 100, which is a flat plate structure with a hollow structure, serving as the support structure and foundation for the fixing device. A support rod 200 is fixedly installed on one side of the top of the first base 100. The support rod 200 serves as the support structure for the fixing device and acts as a guide for longitudinal movement. The support rod 200 and the first base 100 can be vertically fixed by at least one of the following methods: threaded connection, snap-fit ​​connection, or pin connection. These fixing methods and specific implementation structures are known in the art and will not be described in detail here. A longitudinal movement component 300 is movably sleeved on the support rod 200 and can move along the support rod 200. One end of the longitudinal moving component 300 is connected to one end of the rotation adjustment component 400, and the other end of the rotation adjustment component 400 is connected to the second base 500. The second base 500 is a ring frame structure, and a prism fixing component 600 is installed on the second base 500 for fixing the microprism. The rotation adjustment component 400, the second base 500, and the prism fixing component 600 as a whole can be raised and lowered together with the longitudinal moving component 300, and the second base 500 can rotate around any rotation axis point of any rotation component 420. This fixing device can not only clamp and fix the microprism, but also has optional angle, height, and position adjustments, filling the application gap of the prior art.

[0029] See Figure 3The longitudinal moving component 300 includes a sleeve 310 and a first locking mechanism 320. The sleeve 310 is sleeved on the support rod 200, and the first locking mechanism 320 is threadedly connected to the sleeve 310. The end of the first locking mechanism 320 movably passes through the sleeve 310 and abuts against and is fixed to the outer side surface of the support rod 200. The first locking mechanism 320 has a locked state and an unlocked state. When the first locking mechanism 320 is in the knob-locked state, the first locking mechanism 320 abuts against or is embedded in the support rod 200, and the sleeve 310 and the support rod 200 are kept relatively fixed via the first locking mechanism 320. When the first locking mechanism 320 is in the unscrewed unlocked state, the first locking mechanism 320 disengages from the support rod 200, and the sleeve 310 can slide along the support rod 200. More specifically, the first locking mechanism 320 is a bolt-type locking mechanism. The first locking mechanism 320 is threadedly connected to the sleeve 310. When the first locking mechanism 320 is screwed, the first locking mechanism 320 can move along its own axial direction and abut against or be embedded in the support rod 200 or disengage from the support rod 200. At the same time, in order to cooperate with the first locking mechanism 320 to realize the movement and fixation of the sleeve 310, a positioning hole or the like can be provided at the position corresponding to the support rod 200 and the first locking mechanism 320. The number of the first locking mechanisms 320 can be one or more, preferably two. The first locking mechanisms 320 can be arranged opposite each other or on two adjacent surfaces.

[0030] See Figure 3 and Figure 4The rotation adjustment assembly 400 includes a connecting rod 410 and two rotating components 420. Each rotating component 420 has a rotational degree of freedom to rotate independently around two perpendicular rotation axes. The two rotating components 420 are movably connected to both ends of the connecting rod 410. The ends of the two rotating components 420 away from the connecting rod 410 are respectively connected and fixed to the sleeve 310 and the second base 500. Each rotating component 420 includes a connecting block 421 and a rotating joint 422. One side of the connecting block 421 has two symmetrically arranged double-eared connection points formed by the two rotating joints 422, and the other side of the connecting block 421 has a single-eared connection point formed by the rotating joint 422 in the middle. The double-eared connection points on the two rotating components 420 are respectively locked to the connecting rod 410 by bolt locking components 4221. The ends of the 0 are fixedly connected. A set of double-ear connection points are also provided on the outer surfaces of both the longitudinal moving component 300 and the second base 500. These double-ear connection points are also connected and fixed to the single-ear connection points on the rotating component 420 via a set of bolt locking components 4221. The bolt locking components 4221 include bolts and nuts. The bolt passes through the double-ear connection points and the single-ear connection points, and the nut is connected to the end of the bolt. In the working state, one of the double-ear connection points and the single-ear connection point on each side of the rotating component 420 rotates horizontally, while the other rotates vertically. By setting the rotation adjustment component 400, the microprism can not only rotate at multiple angles but also move up and down, allowing the prism to cooperate with the instrument to achieve layout at different points. Specifically, when there are many layout points, precise translation can be achieved by rotating the rotating component 420 around at least one rotation axis.

[0031] The rotary joint 422 used in this embodiment is known in the art. In order to lock and unlock the rotary joint 422, a bolt-locking rotary joint is preferably used, which includes a bolt locking assembly 4221 (including a bolt and a nut). The rotation axis of the rotary joint 422 is parallel to, and preferably coincides with, the axis of the bolt in the bolt locking assembly 4221.

[0032] It should be noted that the structure of the bolt-locking rotary joint and the principles of its locking and unlocking are known to those skilled in the art, and no specific limitations are made here.

[0033] Furthermore, the rotary joint 422 may include a rotating shaft and a bushing that are rotatably fitted. The rotating shaft has a through hole along its own axis (i.e., the rotating shaft is a tubular structure). The middle part of the bolt of the bolt locking assembly is fitted inside the rotating shaft, and the protruding part of the bolt engages with a nut to achieve locking and unlocking of the rotary joint. Of course, the bolt of the bolt locking assembly can also serve as the rotating shaft. To ensure smooth rotation between the rotating shaft and the bushing, the bushing can be a bearing structure, or the rotating shaft and the bushing can be rotatably connected via a bearing.

[0034] See Figure 3 The prism fixing assembly 600 includes two clamping plates 610 symmetrically arranged inside the second base 500. A lateral adjustment mechanism 620 is fixed to each of the two clamping plates 610 on opposite sides. The lateral adjustment mechanism 620 is threaded onto the second base 500. Both the lateral adjustment mechanism 620 and the first locking mechanism 320 are bolt structures. When the lateral adjustment mechanism 620 is screwed on, it can move along its own axial direction, causing the clamping plates 610 connected to it to move synchronously and in the same direction. To improve the stability of the prism fixed to the prism fixing assembly 600 and to avoid physical scratches on the prism, a flexible pad (e.g., a corrugated rubber pad) is provided on the side of the clamping plate 610 that contacts the prism. When the clamping plate 610 contacts the prism, the flexible pad on the surface of the clamping plate 610 is compressed and deformed, thereby preventing the prism from slipping or tilting.

[0035] In addition, the shape of the plywood 610 can be a square plate, an arc plate, or other irregularly shaped plates, and the main material of the plywood 610 can also be a metal plate or a plastic plate, etc.

[0036] Example 2

[0037] This utility model provides a technical solution for a micro prism assembly structure. Based on the aforementioned micro prism fixing device, the micro prism is installed on the second base 500 via the prism fixing component 600. The micro prism is a device specifically designed for construction layout. The structure of the micro prism is known in the art, and its specific structure will not be explained in detail here. It can be any existing model of micro prism.

[0038] In use, the heights of the longitudinal moving component 300, the rotation adjustment component 400, the second base 500, and the prism fixing component 600 are adjusted by adjusting the position of the longitudinal moving component 300 on the support rod 200. After adjustment, the first locking mechanism 320 is turned by knob, and the end of the first locking mechanism 320 is fixed by abutting against the support rod 200 to achieve limitation. Then, the angles of the two rotating components 420 and the connecting rod 410 are adjusted to adjust the lateral and vertical angles and positions of the second base 500 and the prism fixing component 600. Then, the position of the two clamping plates 610 on both sides is adjusted by turning the lateral adjustment mechanism 602, thereby clamping and fixing the microprism from both sides, filling the application gap of the prior art.

[0039] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A miniature prism fixing device, characterized in that, The system includes a first base (100), a support rod (200) is fixedly installed on one side of the top of the first base (100), a longitudinal moving component (300) is movably sleeved on the support rod (200), one end of the longitudinal moving component (300) is connected to one end of the rotation adjustment component (400), the other end of the rotation adjustment component (400) is connected to a second base (500), and a prism fixing component (600) is installed on the second base (500).

2. The miniature prism fixing device according to claim 1, characterized in that, The longitudinal moving assembly (300) includes a sleeve (310) and a first locking mechanism (320). The sleeve (310) is sleeved on the support rod (200), and the first locking mechanism (320) is threaded onto the sleeve (310). The end of the first locking mechanism (320) moves through the sleeve (310) and abuts against the outer side surface of the support rod (200) for fixation.

3. The miniature prism fixing device according to claim 2, characterized in that, The rotary adjustment assembly (400) includes a connecting rod (410) and two rotary components (420). The two rotary components (420) are movably connected to both ends of the connecting rod (410), and the ends of the two rotary components (420) away from the connecting rod (410) are respectively connected and fixed to the sleeve (310) and the second base (500).

4. The miniature prism fixing device according to claim 3, characterized in that, The rotating assembly (420) includes a connecting block (421) and a rotating joint (422). Two double-ear connection points formed by the rotating joint (422) are symmetrically provided on one side of the connecting block (421), and a single-ear connection point formed by the rotating joint (422) is provided in the middle of the other side of the connecting block (421).

5. A miniature prism fixing device according to claim 4, characterized in that, The two ear connection points on the two rotating components (420) are respectively connected and fixed to the end of the connecting rod (410) by bolt locking assembly (4221).

6. A miniature prism fixing device according to claim 5, characterized in that, The outer surfaces of both the longitudinal moving component (300) and the second base (500) are provided with a set of double-ear connection points, and the double-ear connection points are also connected and fixed to the single-ear connection points on the rotating component (420) by a set of bolt locking components (4221).

7. A miniature prism fixing device according to claim 6, characterized in that, The bolt locking assembly (4221) includes a bolt and a nut, the bolt passing through the double-ear connection point and the single-ear connection point, and the nut being connected to the end of the bolt.

8. A miniature prism fixing device according to claim 7, characterized in that, The prism fixing assembly (600) includes two clamping plates (610) symmetrically arranged inside the second base (500). A lateral adjustment mechanism (620) is fixed on the opposite side of each of the two clamping plates (610). The lateral adjustment mechanism (620) is threaded onto the second base (500).

9. A miniature prism fixing device according to claim 8, characterized in that, Both the lateral adjustment mechanism (620) and the first locking mechanism (320) are bolt structures.

10. A micro-prism assembly structure, characterized in that, The device includes a microprism fixing device according to any one of claims 1-9, wherein the microprism is mounted on the second base (500) by the prism fixing assembly (600).