Innovative guide rail locking device

By integrating the guide rail lock base and threaded adjustment rod, the problem of traditional locking methods damaging the guide rail precision is solved. This achieves precise and adjustable locking, wide applicability, and easy operation, while protecting the guide rail surface and extending its service life.

CN121897648APending Publication Date: 2026-04-21AEROSPACE INTELLIGENT MFG (SHANGHAI) TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
AEROSPACE INTELLIGENT MFG (SHANGHAI) TECH CO LTD
Filing Date
2026-01-19
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Traditional guide rail locking methods damage the surface precision of the guide rail and reduce its service life.

Method used

An innovative locking device employing a guide rail lock base and a threaded adjusting rod achieves linear movement of the locking block through the integrated design of threaded transmission and locking block. Power is provided by the operating lever, avoiding direct clamping to the guide rail.

Benefits of technology

It protects the surface precision of the guide rail, extends its service life, and provides a compact structure, precise and adjustable locking, wide applicability, simple operation, and reduced maintenance costs and downtime losses.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides an innovative guide rail locking device, and relates to the technical field of guide rail locking devices. The innovative guide rail locking device comprises a guide rail lock base and a threaded adjusting rod, mounting holes are formed in the front ends and the rear ends of the two sides of the upper end face of the guide rail lock base, locking blocks are embedded into the two sides of the interior of the guide rail lock base, and the threaded adjusting rod is arranged in the two locking blocks in a threaded penetrating mode. A fixing block and an operating rod are fixedly arranged at the end, without threads, of the threaded adjusting rod. By adopting thread transmission, the pressing degree of the locking block can be finely adjusted to adapt to scenes with different tightness requirements; different positioning requirements can be met according to different guide rail types, and the same device can cover various application scenes; according to the device, the three functions of positioning, fixing and releasing are integrated in one operation action, tools or steps do not need to be switched, and the threshold of function use is lowered.
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Description

Technical Field

[0001] This invention relates to the field of guide rail locking device technology, specifically an innovative guide rail locking device. Background Technology

[0002] As a key positioning and locking device in the fields of industrial automation, intelligent manufacturing and precision equipment, traditional guide rail locks achieve the purpose of locking by tightening the fastening screws to compress the guide rail. This method not only damages the surface precision of the guide rail, but also reduces the service life of the guide rail. Summary of the Invention

[0003] Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this invention provides an innovative guide rail locking device that solves the problem of achieving a locking effect while ensuring that the surface precision of the guide rail is not compromised.

[0005] Technical solution

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: an innovative guide rail locking device, comprising a guide rail lock base and a threaded adjusting rod, wherein mounting holes are provided at the front and rear ends of both sides of the upper end face of the guide rail lock base, and locking blocks are embedded in both sides of the inside of the guide rail lock base, and the threaded adjusting rod is threaded through the two locking blocks, and a fixing block and an operating rod are fixedly provided at the unthreaded end of the threaded adjusting rod.

[0007] Preferably, the guide rail lock base adopts a U-shaped structure, with its opening facing downwards and presenting a rectangular bottom groove.

[0008] Preferably, slots are provided on both sides of the top of the inner wall of the bottom groove.

[0009] Preferably, the two locking blocks are laterally slidably embedded inside the guide rail lock base and restrict rotation.

[0010] Preferably, the threaded adjusting rod eccentrically passes through the locking block.

[0011] Beneficial effects

[0012] This invention provides an innovative guide rail locking device. It has the following advantages:

[0013] This invention provides an innovative guide rail locking device. From a structural perspective, the threaded drive and locking block are integrated into a small base. Compared with the traditional separate locking structure, the structure is more compact and saves installation space. The combination of threaded adjustment and extended operating rod utilizes the precise displacement of the thread and amplifies the torque through the operating rod, solving the problem of difficulty in applying force in small spaces.

[0014] This invention provides an innovative guide rail locking device. Functionally, the threaded drive offers high displacement accuracy and allows for fine-tuning of the locking block's clamping degree, adapting to scenarios with varying tightness requirements. In terms of functional compatibility, the mechanism can meet different positioning needs depending on the guide rail type, covering multiple application scenarios with the same device. Furthermore, it is easy to use, integrating the three functions of "positioning, fixing, and releasing" into a single operation, eliminating the need to switch tools or steps and lowering the barrier to entry for its use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the axial structure of the present invention;

[0016] Figure 2 For the present invention Figure 1 A schematic diagram of the rear view structure;

[0017] Figure 3 For the present invention Figure 2 A schematic diagram of the top view structure;

[0018] Figure 4 This is a schematic diagram of the internal structure of the present invention.

[0019] The components include: 1. Mounting hole; 2. Guide rail lock base; 3. Fixing block; 4. Threaded adjusting rod; 5. Operating rod; 6. Locking block; 7. Bottom groove; 8. Slot hole. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example: Figures 1-4 As shown, this embodiment of the invention provides an innovative guide rail locking device, including a guide rail lock base 2 and a threaded adjusting rod 4. Mounting holes 1 are provided at the front and rear ends of both sides of the upper end face of the guide rail lock base 2. Locking blocks 6 are embedded in both sides of the guide rail lock base 2. The threaded adjusting rod 4 is threaded through the two locking blocks 6. A fixing block 3 and an operating rod 5 are fixedly provided at the unthreaded end of the threaded adjusting rod 4.

[0022] Specifically, in the above specific embodiments, the guide rail lock base 2 is used to install core components such as the locking block 6 and the threaded adjustment rod 4, and to integrate the assembly positions of each part; it restricts the movement direction of the locking block 6, so that it can only move in a straight line along the guide rail direction;

[0023] The locking block 6 directly contacts the mating structure of the guide rail, and achieves the fixing effect through the friction between itself and the guide rail.

[0024] The threaded adjusting rod 4 converts the rotational motion of the operating rod into the linear motion of the locking block through the threaded engagement.

[0025] The joystick 5 provides power and is a convenient hand / operation part, reducing the difficulty of manual operation;

[0026] The implementation process of this innovative guide rail locking device begins with pre-installation preparations. Operators must first confirm that the dimensions of the guide rail lock base 2 match the guide rail to be installed, and check that the locking block 6 and the threaded adjusting rod 4 move freely and without jamming. Then, the contact area between the guide rail surface and the locking device is cleaned to ensure there is no oil or impurities, guaranteeing uniform and reliable friction during the locking process. This stage showcases the device's compact and integrated design advantages; all core components are built into the base, eliminating the need for additional assembly of multiple scattered parts, significantly simplifying preparations and reducing the risk of installation errors due to lost or mismatched parts.

[0027] Next, the initial installation of the device is performed. The rectangular groove 7 at the bottom of the guide rail lock base 2 is aligned with the top of the guide rail and slowly lowered, allowing the guide rail to embed into the groove 7. At this point, the base achieves initial positioning and guidance through the groove 7. Using bolts, the device is initially fixed to the equipment base or support structure through the mounting holes 1 on both sides of the upper surface of the base. At this time, the locking block 6 has not yet contacted the guide rail, and the device is in an unlocked state. This step highlights the functional compatibility advantage of the device. Its U-shaped base and groove 7 structure can adapt to various guide rail specifications. A single device can cover different guide rail types and application scenarios, eliminating the need for dedicated locking components for different guide rails, thus improving the versatility and deployment efficiency of the equipment.

[0028] After initial installation, the locking operation begins. The operator rotates the operating lever clockwise, causing the threaded adjusting rod 4 to rotate synchronously. Since the threaded adjusting rod 4 engages with the locking blocks 6 on both sides via threads, and the locking blocks 4 are confined within the base and can only slide laterally, the threaded rotation translates into linear movement of the locking blocks 6 along the width of the guide rail, causing the two locking blocks 6 to advance synchronously to both sides of the guide rail. As the operating lever continues to rotate, the locking blocks 6 gradually press against the sides of the guide rail, achieving reliable locking through friction. During this process, the threaded drive provides precise displacement control, allowing for fine-tuning of the locking force. This meets the needs of scenarios requiring high rigidity and also adapts to applications requiring some adjustment leeway, demonstrating the device's significant advantages in locking accuracy and adjustability. Furthermore, the extended design of the operating lever allows for easy application of force even in confined spaces, improving operational convenience.

[0029] Finally, regarding the unlocking and adjustment process, when it is necessary to release the guide rail or adjust its position, turn the operating lever counterclockwise. The threaded adjusting lever 4 rotates in the opposite direction, and through the transmission of the threaded pair, pushes the locking block backward in a straight line, disengaging it from the guide rail, thus achieving quick unlocking. The entire process requires no tool changes or complex step switching, truly integrating positioning, fixing, and releasing functions within a single operation. This feature greatly lowers the barrier to entry, allowing even non-professionals to easily complete the operation. Furthermore, because the locking block 6 makes surface contact with the guide rail and the pressure is controllable, it avoids the surface damage to the guide rail caused by direct tightening with traditional screws, protecting the guide rail's accuracy and lifespan. This demonstrates the dual advantages of the device in terms of ease of use and guide rail protection.

[0030] The rotating operating lever 4 drives the threaded adjusting lever to rotate, and the threaded pair precisely converts the rotational motion into the opposing or opposite linear motion of the two locking blocks 6, thereby clamping or releasing the guide rail. This structure highly integrates transmission, execution, and operation functions into a compact base, significantly saving installation space. At the same time, the threaded drive provides high-precision displacement control, enabling stepless fine adjustment of the locking force. It can flexibly adapt to different tightness requirements, from precision positioning to heavy-duty locking, demonstrating the core advantages of compact structure and precise adjustment.

[0031] The innovative guide rail locking device provided by this technology has a series of significant and synergistic advantages compared with traditional locking methods. These advantages are mainly reflected in four core aspects: structural design, functional performance, scope of application, and user experience, which together constitute its outstanding technical competitiveness and application value.

[0032] In terms of structure and reliability, this device boasts core advantages such as high integration, high rigidity, and no damage to the guide rail. It employs an integrated U-shaped base, compactly integrating the threaded transmission mechanism, double sliding locking blocks, and operating components internally, significantly saving installation space and making it particularly suitable for modern, densely packed equipment layouts with limited space. The base itself has high rigidity, effectively bearing and distributing locking forces and working loads, ensuring structural stability over long-term use. Most importantly, its locking principle is achieved through uniform surface contact friction between the locking blocks and the guide rail side, abandoning the traditional method of directly pressing or squeezing the guide rail surface with screws. This fundamentally avoids scratches, indentations, or plastic deformation, perfectly protecting the original precision and surface integrity of the guide rail, thereby significantly extending the service life of the entire guide rail system and reducing maintenance costs and downtime losses caused by guide rail damage.

[0033] In terms of functionality and performance, this device achieves precise, adjustable, and reliable holding of the locking force. A precision threaded transmission mechanism converts the rotational motion of the operating lever into micron-level linear displacement of the locking blocks, allowing the operator to continuously and precisely adjust the locking force steplessly. This meets the requirements for robust locking with high rigidity and zero wobbling, while also enabling damped locking that allows for slight slippage, making it highly adaptable. The symmetrical and synchronous design of the dual locking blocks ensures that the locking force is evenly applied to both sides of the guide rail, avoiding uneven loading and jamming caused by unilateral force. The special eccentric threaded rod design not only enhances the adaptability to guide rails of different specifications but also generates a certain self-amplifying force effect during the locking process. Combined with the self-locking characteristics of the threaded pair itself, the device can maintain a locked state for a long time even under harsh conditions such as vibration and impact, exhibiting excellent anti-loosening performance and ensuring the safety and reliability of equipment operation.

[0034] In terms of applicability and compatibility, this device demonstrates excellent versatility and flexibility. Its modular design allows a single model to accommodate guide rails of various widths and specifications through its open base structure, achieving "one lock for multiple uses." This greatly simplifies spare parts inventory management and reduces procurement and management costs. Whether for linear guides in precision machine tools, conveyor rails on automated production lines, or support rails in heavy equipment, this device provides an effective locking solution. This broad compatibility enables seamless application across various industries, from light industry and electronics to heavy manufacturing, significantly expanding the product's market application scenarios.

[0035] In terms of operation and maintenance, this device greatly improves the convenience and efficiency of human-machine interaction. It integrates the three functions of "positioning, clamping, and releasing" into a single, intuitive action of rotating the operating lever. The operating logic is simple and direct, requiring no tool switching or complex steps. The extended operating lever provides a labor-saving lever arm, allowing for easy application of force even in confined spaces, reducing the operator's workload. Simultaneously, the unlocking process is equally smooth and controllable; simply rotating the operating lever in the opposite direction releases the device smoothly, without the risk of jamming or sudden disengagement. This high level of ease of use not only shortens the time required for equipment debugging, setup, and tooling changes, improving production efficiency, but also lowers the skill threshold for operators, reducing the possibility of equipment damage or safety accidents due to misoperation.

[0036] In summary, this technology, through innovative mechanical integration design, successfully combines four major advantages—compact structure, precise and reliable locking, wide applicability, and simple and efficient operation—while protecting the core assets of the guide rail. It not only solves the pain points of traditional locking methods, such as damage to the guide rail, rough adjustments, and cumbersome operation, but also provides an excellent solution for the fixing and rapid positioning needs of guide rails in modern industrial equipment with high reliability, high adaptability, and high ergonomics, demonstrating high practical value and promising prospects for widespread application.

[0037] In one embodiment of the present invention, the guide rail lock base 2 adopts a U-shaped structure, and its opening direction is downward, presenting a rectangular bottom groove 7;

[0038] Specifically, in the above-mentioned specific embodiments, the U-shaped structure not only enhances the load-bearing rigidity and overall stability of the base, but also provides a natural guide rail with a bottom groove formed by its bottom opening, ensuring the initial alignment and guidance during device installation.

[0039] In one embodiment of the present invention, slot holes 8 are provided on both sides of the top end of the inner wall of the bottom groove 7;

[0040] Specifically, in the above-described embodiments, the slot 8 provides an interface for further restricting the movement trajectory of the locking block 6 or adding auxiliary positioning functions, thereby enhancing the system's resistance to off-center loads and its stability during the locking process. This design enables a single device to be compatible with various sizes and types of guide rails through the universal bottom slot 7 structure, achieving broad adaptability to various working conditions and reducing the cost and storage complexity for users to stock dedicated locking parts for different guide rails.

[0041] In one embodiment of the present invention, two locking blocks 6 are embedded in the guide rail lock base 2 and are laterally slidably installed to restrict rotation;

[0042] Specifically, in the above-described embodiments, this installation method is typically achieved through a sliding groove, a guide key, or a guide pin that mates with the slot 8. This constraint mechanism ensures that, driven by the threaded adjusting rod 4, the locking block 6 can only move horizontally in a direction perpendicular to the length of the guide rail, thereby purely converting the rotational torque into a positive clamping force on the side of the guide rail. This avoids the problem of uneven distribution of locking force or excessive local stress on the guide rail caused by the rotation of the locking block 6. Furthermore, it ensures that the contact surface between the locking block 6 and the guide rail remains parallel during locking and unlocking, allowing for uniform transmission of frictional force. This greatly improves the reliability and repeatability of locking, while effectively preventing scratches or indentations on the guide rail surface caused by abnormal stress concentration, thus protecting the long-term accuracy of the guide rail.

[0043] In one embodiment of the present invention, the threaded adjusting rod 4 eccentrically passes through the locking block 6;

[0044] Specifically, in the above-described embodiment, the axis of the adjusting rod 4 is offset from the theoretical symmetrical center line of the locking block 6. This eccentric design allows for fine-tuning of the actual contact point between the locking block and the guide rail by rotating the adjusting rod. Its working principle is that, utilizing the leverage effect of the eccentricity, the fit between the locking block and guide rails of different widths or side profiles can be optimized without significantly increasing the operating torque. This feature significantly improves the device's adaptability to non-standard guide rails or those with slight manufacturing tolerances, ensuring maximum effective contact area and stable locking force under various conditions. Simultaneously, the eccentric structure helps generate a self-amplifying force during locking, enhancing vibration resistance and anti-loosening capabilities in the locked state. This allows the device to maintain excellent locking reliability under dynamic loads, further broadening its application range.

[0045] Working principle: The device is directly installed on the guide rail. During use,

[0046] Locking process: Rotate the operating lever 5 to drive the threaded adjusting lever 4 to rotate synchronously; since the threaded adjusting lever 4 and the locking block 6 are connected by threads, and the locking block 6 is restricted inside the guide rail lock base 2, the threaded rotation will be converted into the linear displacement of the locking block 6 moving in the direction of the guide rail; the locking block 6 continues to advance towards the guide rail side, and finally fits tightly with the cooperation structure of the guide rail, fixing the current position of the guide rail and completing the locking.

[0047] Unlocking process: Rotate the operating lever 5 in the opposite direction. The threaded adjusting lever 4 is driven to rotate by the reverse torque of the operating lever 5. The working surface of the thread profile is in surface contact with the internal thread of the locking block 6. The torque is converted into an axial component force that pushes the locking block 6 backward in a straight line through the positive pressure of the thread profile. At this time, there is no radial clearance in the threaded pair, which avoids backlash or idle error during transmission. When the locking block 6 disengages from the guide rail, the locking process is completed.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An innovative guide rail locking device, comprising a guide rail locking base (2) and a threaded adjusting rod (4), characterized in that: The guide rail lock base (2) has mounting holes (1) at both ends on both sides of the upper end face. Locking blocks (6) are embedded in both sides of the guide rail lock base (2). The threaded adjustment rod (4) is threaded through the two locking blocks (6). The end of the threaded adjustment rod (4) without threads is fixedly provided with a fixing block (3) and an operating rod (5).

2. The innovative guide rail locking device according to claim 1, characterized in that: The guide rail lock base (2) adopts a U-shaped structure, and its opening direction is downward, presenting a rectangular bottom groove (7).

3. The innovative guide rail locking device according to claim 2, characterized in that: The bottom groove (7) has slots (8) on both sides of the top of the inner wall.

4. The innovative guide rail locking device according to claim 1, characterized in that: The two locking blocks (6) are embedded inside the guide rail lock base (2) and are laterally slidably installed to restrict rotation.

5. The innovative guide rail locking device according to claim 1, characterized in that: The threaded adjusting rod (4) is eccentrically inserted through the locking block (6).