Device for detecting three-dimensional space size
By integrating a linear module, laser displacement sensor, micro switch, proximity switch, cable chain, self-locking rotary plunger, and friction aluminum plate, the collision problem of the linear module-driven cleaning device in the event of circuit failure is solved, thereby improving the safety and reliability of the equipment, reducing maintenance costs, and improving signal stability.
Patent Information
- Application Number
- CN202520659999.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-04-09
AI Technical Summary
Existing linear module-driven cleaning devices may cause equipment collisions or curtain wall damage when circuit failures or signal delays occur. Traditional redundant circuits or software limit protection methods have slow response times and high costs, cannot cope with extreme mechanical failures, and cable wear affects data acquisition accuracy.
The system employs a combination of linear modules, laser displacement sensors, micro switches, proximity switches, cable chains, self-locking rotary plungers, and friction aluminum plates. Through mechanical linkage and electrical limits, it ensures that the equipment physically retreats in the event of circuit failure, reducing cable wear and improving signal stability.
It significantly reduces the risk of curtain wall breakdown, extends equipment life, reduces maintenance costs, is suitable for high electromagnetic interference or extreme environments, and saves installation space.
Smart Images

Figure CN223870015U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of linear modules, and more particularly to a device for detecting three-dimensional spatial dimensions. Background Technology
[0002] In existing linear module-driven cleaning devices, the module's travel is typically controlled by sensor signals. However, in the event of circuit failure or signal delay, the module's continued movement may cause equipment collisions or damage to the curtain wall. Traditional solutions often achieve protection through redundant circuits or software limits, but these methods still suffer from slow response times, high costs, and inability to handle extreme mechanical failures. Furthermore, the long-term movement of cables and sensors is prone to wear due to friction and bending, affecting data acquisition accuracy. Therefore, there is an urgent need for a linear module that integrates both mechanical and electrical protection mechanisms and can stably manage cables to improve the safety and reliability of cleaning devices. Utility Model Content
[0003] This application provides a device for detecting three-dimensional spatial dimensions, which solves the problem in the prior art where linear module driven cleaning devices typically rely on sensor signals to control the module's stroke. However, in the event of circuit failure or signal delay, the module may cause equipment collision or curtain wall damage due to continuous advancement. Traditional solutions often achieve protection through redundant circuits or software limits, but these methods still have technical problems such as slow response, high cost, and inability to cope with extreme mechanical failures.
[0004] The technical solution adopted in the embodiments of this application is as follows:
[0005] A device for detecting three-dimensional spatial dimensions includes a linear module, a laser displacement sensor, a micro switch, a proximity switch, a cable chain, a self-locking rotary plunger, a friction aluminum plate, and a fixed long rod. The linear module provides linear driving force. The laser displacement sensor, micro switch, and proximity switch are all mounted on the moving end of the linear module to detect the distance to a curtain wall and generate a stop signal. The cable chain connects the fixed end and the moving end of the linear module to protect and guide the sensor cable. The self-locking rotary plunger is located on the moving end of the linear module. The friction aluminum plate cooperates with the self-locking rotary plunger to limit the displacement of the fixed long rod through friction. A sensor is mounted at the end of the fixed long rod and can slide along the axial direction of the linear module.
[0006] A further technical solution is as follows: the two ends of the drag chain are respectively fixed to the base and the moving end of the linear module, and the internal channel of the drag chain separates the cables of the laser displacement sensor and the micro switch.
[0007] A further technical solution is as follows: the self-locking knob plunger forms an adjustable friction pair with the friction aluminum plate through the spring preload, and maintains the locked state of the fixed rod under normal conditions.
[0008] A further technical solution is that the laser displacement sensor is integrated at the end of the fixed rod, and its detection direction is consistent with the pushing direction of the linear module.
[0009] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:
[0010] 1. By employing a linear module, laser displacement sensor, micro switch, proximity switch, cable chain, self-locking rotary plunger, friction plate, and fixed rod, the electrical limit switches of the laser displacement sensor, micro switch, and proximity switch, along with the mechanical linkage of the self-locking rotary plunger and friction plate, ensure physical retraction even in the event of circuit failure, significantly reducing the risk of curtain wall breakdown. The cable chain provides directional protection for the sensor cables, reducing bending and wear, extending equipment life, and improving signal stability. The modular design of the self-locking rotary plunger and friction plate allows for quick disassembly and replacement, reducing maintenance costs. The mechanical retraction mechanism does not rely on external power and is suitable for environments with high electromagnetic interference or extreme temperature and humidity. The laser displacement sensor, micro switch, proximity switch, and retraction mechanism are integrated into the moving end of the linear module, saving installation space. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the overall structure of a device for detecting three-dimensional spatial dimensions in an embodiment of this utility model.
[0012] Figure 2 This is a partial structural diagram illustrating the positional relationship between the laser displacement sensor and the micro switch in an embodiment of this utility model.
[0013] Figure 3 This is a partial structural diagram illustrating the positional relationship between the self-locking knob plunger and the friction aluminum plate in an embodiment of this utility model.
[0014] In the diagram: 1. Linear module; 2. Laser displacement sensor; 3. Micro switch; 4. Proximity switch; 5. Cable chain; 6. Self-locking knob plunger; 7. Friction aluminum plate; 8. Fixed rod. Detailed Implementation
[0015] This application provides a device for detecting three-dimensional spatial dimensions, which solves the problem in the prior art where linear module driven cleaning devices typically rely on sensor signals to control the module's stroke. However, in the event of circuit failure or signal delay, the module may cause equipment collision or curtain wall damage due to continuous advancement. Traditional solutions often achieve protection through redundant circuits or software limits, but these methods still have technical problems such as slow response, high cost, and inability to cope with extreme mechanical failures.
[0016] The technical solution in this application is to solve the above problems, and the overall approach is as follows:
[0017] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.
[0018] A device for detecting three-dimensional spatial dimensions, such as Figure 1 , Figure 2 and Figure 3 As shown, the system includes a linear module 1, a laser displacement sensor 2, a micro switch 3, a proximity switch 4, a cable chain 5, a self-locking rotary plunger 6, a friction aluminum plate 7, and a fixed rod 8. The linear module 1 provides linear driving force. The laser displacement sensor 2, micro switch 3, and proximity switch 4 are all mounted on the moving end of the linear module 1 to detect the distance to the curtain wall and generate a stop signal. The cable chain 5 connects the fixed end and the moving end of the linear module 1, protecting and guiding the sensor cables. The self-locking rotary plunger 6 is located on the moving end of the linear module 1. The friction aluminum plate 7 cooperates with the self-locking rotary plunger 6, limiting the displacement of the fixed rod 8 through friction. A sensor is mounted at the end of the fixed rod 8, which can slide along the axial direction of the linear module 1.
[0019] When the linear module 1 pushes the fixed rod 8 toward the curtain wall, the laser displacement sensor 2, micro switch 3 and proximity switch 4 work together to monitor the position and trigger a stop signal; if the circuit fails and causes the module 1 to advance beyond the limit, the resistance of the fixed rod 8 forces the self-locking knob plunger 6 to pop up, reducing the clamping force between the friction aluminum plate 7 and the fixed rod 8, causing the fixed rod 8 to mechanically retreat and avoid damage to the curtain wall.
[0020] The two ends of the drag chain 5 are fixed to the base and the moving end of the linear module 1, respectively, and the internal channel of the drag chain 5 separates the cables of the laser displacement sensor 2 and the micro switch 3.
[0021] The self-locking knob plunger 6 forms an adjustable friction pair with the friction aluminum plate 7 through the spring preload, and maintains the locked state of the fixed rod 8 under normal conditions.
[0022] A laser displacement sensor 2 is integrated at the end of the fixed long rod 8, and its detection direction is consistent with the pushing direction of the linear module 1.
[0023] The slider of the linear module 1 is connected to the base via a cable chain 5. The laser displacement sensor 2, micro switch 3, and proximity switch 4 are installed at the front end of the slider. A fixed rod 8 passes through the slider and extends to the curtain wall detection area, with its surface in contact with the friction aluminum plate 7. A self-locking knob plunger 6 is embedded in the side wall of the slider, and the friction aluminum plate 7 is pressed against the fixed rod 8 by spring pressure.
[0024] Under normal operating conditions, the linear module 1 drives the slider and fixed rod 8 to move towards the curtain wall. The laser displacement sensor 2 provides real-time distance data, and the proximity switch 4 triggers a signal at a preset limit position to stop the module 1. If a circuit malfunction causes the module 1 to fail to stop, the fixed rod 8, under the resistance of the curtain wall, pushes the self-locking knob plunger 6 to compress the spring. The friction between the friction aluminum plate 7 and the fixed rod 8 decreases sharply, and the fixed rod 8 slides backward relative to the slider to avoid rigid impact on the curtain wall.
[0025] The use of a linear module 1, laser displacement sensor 2, micro switch 3, proximity switch 4, cable chain 5, self-locking rotary plunger 6, friction aluminum plate 7, and fixed rod 8, along with the electrical limit switches of the laser displacement sensor 2, micro switch 3, and proximity switch 4 and the mechanical linkage of the self-locking rotary plunger 6 and friction aluminum plate 7, ensures that physical retraction is triggered even in the event of circuit failure, significantly reducing the risk of curtain wall breakdown. The cable chain 5 provides directional protection for the sensor cables, reducing bending and wear, extending equipment lifespan, and improving signal stability. The modular design of the self-locking rotary plunger 6 and friction aluminum plate 7 allows for quick disassembly and replacement, reducing maintenance costs. The mechanical retraction mechanism does not rely on external power and is suitable for environments with high electromagnetic interference or extreme temperature and humidity. The laser displacement sensor 2, micro switch 3, proximity switch 4, and retraction mechanism are integrated into the moving end of the linear module 1, saving installation space.
[0026] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.
[0027] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A device for detecting three-dimensional spatial dimensions, characterized in that, The system includes a linear module (1), a laser displacement sensor (2), a micro switch (3), a proximity switch (4), a cable chain (5), a self-locking rotary plunger (6), a friction aluminum plate (7), and a fixed rod (8). The linear module (1) provides linear driving force. The laser displacement sensor (2), micro switch (3), and proximity switch (4) are all installed on the moving end of the linear module (1) to detect the distance to the curtain wall and generate a stop signal. The cable chain (5) connects the fixed end and the moving end of the linear module (1) to protect and guide the sensor cable. The self-locking rotary plunger (6) is located on the moving end of the linear module (1). The friction aluminum plate (7) cooperates with the self-locking rotary plunger (6) to limit the displacement of the fixed rod (8) through friction. A sensor is installed at the end of the fixed rod (8) and can slide along the axial direction of the linear module (1).
2. The device for detecting three-dimensional spatial dimensions as described in claim 1, characterized in that, The two ends of the drag chain (5) are respectively fixed to the base and the moving end of the linear module (1), and the internal channel of the drag chain (5) separates the cables of the laser displacement sensor (2) and the micro switch (3).
3. The device for detecting three-dimensional spatial dimensions as described in claim 1, characterized in that, The self-locking knob plunger (6) forms an adjustable friction pair with the friction aluminum plate (7) through the spring preload, and maintains the locked state of the fixed rod (8) under normal conditions.
4. The device for detecting three-dimensional spatial dimensions as described in claim 1, characterized in that, The laser displacement sensor (2) is integrated at the end of the fixed long rod (8), and its detection direction is consistent with the propulsion direction of the linear module (1).