Miniature linear guide rail anti-falling limiting stop block assembly
By setting adjustable limit blocks and a rolling connection slider structure on the guide rail, the problem of fixed position of the limit blocks is solved, the precise movement of the slider and the stability of the structure are achieved, slider damage is reduced, and service life is increased.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-11
- Publication Date
- 2026-04-03
AI Technical Summary
In existing guide rail anti-drop devices, the position of the limit block is fixed and cannot be adjusted according to the actual movement requirements of the slider. Furthermore, the slider is easily damaged due to direct contact with the limit block, which affects the lifespan of the slider.
A miniature linear guide anti-drop limit block assembly was designed. By setting an adjustable limit block and a rolling connected slider structure on the guide rail, the rolling ball reduces friction, and the fixed rod prevents direct contact, thereby achieving flexible adjustment of the limit position and structural stability.
It improves the accuracy of slider movement and the flexibility of the structure, reduces direct contact damage between the slider and the limit stop, and enhances the stability and service life of the slider.
Smart Images
Figure CN224079472U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical engineering technology, specifically to a miniature linear guide rail anti-fall-off limiting block assembly. Background Technology
[0002] A stop is a mechanical part or structural component used to restrict the movement of an object, provide support, or prevent displacement. It has a wide range of applications in various fields.
[0003] Existing guide rail anti-drop devices typically place limit blocks at both ends of the guide rail to limit the movement of the slider. However, the position of the limit blocks is fixed and cannot be adjusted according to the actual movement requirements of the slider. In addition, the contact parts are prone to damage when the slider slides on the guide rail, and direct contact between the slider and the limit blocks can also damage the slider, thus affecting its service life.
[0004] Therefore, a miniature linear guide anti-fall-off limiting block assembly is proposed to solve the problems mentioned above. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a miniature linear guide rail anti-drop limit block assembly, which can solve problems such as the fixed position of the limit block and the inability to adjust the limit position according to the actual movement requirements of the slider.
[0006] To achieve the above objectives, this utility model provides the following technical solution: It includes a guide rail and a sliding block disposed on the upper end of the guide rail. Triangular grooves are provided on both sides of the guide rail. Cylindrical grooves are provided through both sides of the sliding block, and a fixing rod is disposed inside the cylindrical groove. Two springs are sleeved around the fixing rod. Limiting blocks are fixedly connected to both ends of the fixing rod, and the two limiting blocks are symmetrically distributed. Two limiting blocks are provided at the upper end of the guide rail. Rectangular grooves are provided on both sides of the two limiting blocks, and sliders are provided through the rectangular grooves. Triangular locking blocks are fixedly connected to one side of each slider, and a connecting rod is provided through the middle of each slider. Springs are sleeved around the connecting rod.
[0007] Preferably, two rolling grooves are formed on the inner side of the triangular sliding groove, the two rolling grooves are symmetrically distributed, and sleeves are sleeved at both ends of the connecting rod, the sleeves being slidably connected to the connecting rod.
[0008] Preferably, one end of the sleeve is fixedly connected to a plug-in block, and the plug-in block and the sliding block are arranged in a through-hole configuration.
[0009] Preferably, two triangular sliders are fixedly connected to the inner side of the sliding block, the two triangular sliders are slidably connected inside the triangular groove, and the two springs are symmetrically distributed.
[0010] Preferably, each of the two triangular sliders has a rolling ball at both ends, and the rolling ball is tactilely connected inside the triangular slider.
[0011] Preferably, the rolling ball is tumbling connected inside the rolling groove.
[0012] Preferably, the fixing rod and the cylindrical groove are slidably connected, the triangular locking block is inserted into the triangular sliding groove, and the size of the triangular locking block is slightly larger than the triangular sliding groove.
[0013] Compared with the prior art, this utility model provides a miniature linear guide rail anti-drop limiting block assembly, which has the following beneficial effects:
[0014] 1. By setting a rolling ball, the friction between the sliding block and the triangular groove can be reduced, thus improving the accuracy of the sliding block's movement.
[0015] 2. The position of the limit block can be changed by moving the slider, which improves the flexibility of the structure.
[0016] 3. By setting a fixing rod, direct contact between the sliding block and the limit stop can be prevented, thus improving the stability of the structure. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of a miniature linear guide rail anti-fall-off limiting block assembly according to this utility model;
[0018] Figure 2 This is a cross-sectional structural diagram of the rolling mechanism of this utility model;
[0019] Figure 3 This is a schematic diagram of the plug-in fixing method of this utility model;
[0020] Figure 4 This is a cross-sectional structural diagram of the plug-in fixing method of this utility model.
[0021] In the diagram: 1. Guide rail; 2. Sliding block; 3. Fixed rod; 4. Limiting block; 5. Limiting stop; 6. Slider; 7. Triangular snap-fit block; 8. Sleeve; 9. Connecting rod; 10. Spring 2; 11. Spring 1; 12. Rolling ball; 13. Triangular slide groove; 14. Rolling groove; 15. Insertion block. Detailed Implementation
[0022] 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.
[0023] Example:
[0024] Please see Figure 1 - Figure 4 This embodiment of a miniature linear guide rail anti-fall-off limiting block assembly includes a guide rail 1 and a sliding block 2 disposed on the upper end of the guide rail 1. Triangular sliding grooves 13 are provided on both sides of the guide rail 1. Cylindrical grooves are provided through both sides of the sliding block 2, and a fixing rod 3 is provided inside the cylindrical groove. Two springs 11 are sleeved around the fixing rod 3. Limiting blocks 4 are fixedly connected to both ends of the fixing rod 3. The two limiting blocks 4 are symmetrically distributed. Two limiting blocks 5 are provided on the upper end of the guide rail 1. Rectangular sliding grooves are provided on both sides of the two limiting blocks 5, and sliders 6 are provided through the rectangular sliding grooves. Triangular locking blocks 7 are fixedly connected to one side of the two sliders 6, and a connecting rod 9 is provided through the middle of the slider 6. Springs 2 10 are sleeved around the connecting rod 9.
[0025] Two rolling grooves 14 are provided on the inner side of the triangular sliding groove 13. The two rolling grooves 14 are symmetrically distributed. Sleeves 8 are sleeved at both ends of the connecting rod 9. The sleeves 8 are slidably connected to the connecting rod 9.
[0026] One end of the sleeve 8 is fixedly connected to a plug block 15, and the plug block 15 and the sliding block 2 are arranged in a through-hole configuration;
[0027] Two triangular sliders are fixedly connected to the inner side of the sliding block 2. The two triangular sliders are slidably connected inside the triangular groove 13, and the two springs 11 are symmetrically distributed.
[0028] The limitation of the sliding position of the sliding block 2 by the limiting block 5 is existing technology, so it is not described in detail in this embodiment.
[0029] At this time, by fixing two triangular sliders to the inside of the sliding block 2 and sliding the two triangular sliders to the guide rail 1, the lateral position of the sliding block 2 can be limited when the two triangular sliders slide inside the guide rail 1, so as to prevent the sliding block 2 from shifting position when sliding at the upper end of the guide rail 1, which would cause the sliding block 2 to move inaccurately. By setting two limit blocks 5 at the upper end of the guide rail 1, the stroke of the sliding block 2 can be limited, preventing it from detaching from the end of the guide rail 1 and ensuring the normal operation of the mechanical system.
[0030] By installing a fixed rod 3 through the cylindrical groove and sleeved with two springs 11 around the fixed rod 3, when the sliding block 2 moves on the upper end of the guide rail 1, the limiting block 4 will contact the limiting stop 5 earlier than the sliding block 2. The limiting stop 5 will squeeze the limiting block 4. When the limiting block 4 is under pressure, it will squeeze the springs 11. By having the springs 11 contact the limiting stop 5 first, the sliding block 2 will not directly collide with the limiting stop 5, thus preventing the limiting stop 5 from damaging the sliding block 2.
[0031] By pushing the slider 6, the triangular locking block 7 will be inserted into the triangular slide groove 13 to fix the position of the limiting baffle 5. The triangular locking block 7 is made of soft rubber and its size is slightly larger than the triangular slide groove 13. During installation, the triangular locking block 7 needs to be squeezed and deformed to embed into the triangular slide groove 13. The elastic restoring force of the rubber generates a lateral clamping force to achieve the fixing effect of the limiting baffle 5. When the slider 6 moves inward, the inner wall of the rectangular slide groove will push the insertion block 15 towards the slider 6. At the same time, the insertion block 15 will push the sleeve 8 to move. When the sleeve 8 moves, it will squeeze the spring 10. When the triangular locking block 7 moves into the triangular slide groove 13, the insertion block 15 will be inserted into the limiting baffle 5 to achieve the fixing effect of the slider 6. When the position of the limiting baffle 5 needs to be changed;
[0032] At this time, the plug-in block 15 is pushed manually. When the plug-in block 15 moves out from inside the limit block 5, the triangular locking block 7 can be pulled out by pulling the slider 6, thereby releasing the triangular locking block 7 from limiting the position of the limit block 5. The limit block 5 can then be moved to the designated position manually, and the position of the limit block 5 can be fixed by pushing the slider 6.
[0033] Both ends of the two triangular sliders are provided with rolling balls 12, which are rotatably connected inside the triangular sliders.
[0034] The rolling ball 12 is rolled inside the rolling groove 14;
[0035] The fixed rod 3 is slidably connected to the cylindrical groove, and the triangular limiting block 7 is inserted into the triangular sliding groove 13. The size of the triangular locking block 7 is slightly larger than that of the triangular sliding groove 13.
[0036] By rolling the ball 12 inside the triangular slider, the contact surface between the triangular slider and the triangular groove 13 can be changed to a rolling connection. This reduces the contact area between the triangular slider and the triangular groove 13, thereby reducing friction and preventing damage caused by prolonged sliding inside the triangular groove 13. This also prevents inaccurate movement of the sliding block 2. Furthermore, by setting the fixed rod 3 to a sliding connection with the cylindrical groove, when the limiting block 4 is pressed by the limiting stop 5, the fixed rod 3 will slide inside the cylindrical groove, ensuring that the sliding block 2 does not directly contact the limiting stop 5 and improving the stability of the structure.
[0037] The working principle of the above embodiments is as follows:
[0038] In use, by moving the two limit blocks 5 to the designated position and pushing the slider 6, the position of the limit blocks 5 can be fixed, preventing the sliding block 2 from falling off due to excessive movement, while ensuring the safety and accuracy of the mechanism's movement. By changing the contact surface between the sliding block 2 and the triangular slide groove 13 from sliding to rolling, the contact area between the sliding block 2 and the triangular slide groove 13 can be reduced, thereby reducing the problem of friction damage to the sliding block 2. Furthermore, by setting the fixing rod 3, the sliding block 2 can be prevented from directly contacting the limit blocks 5, thereby reducing the problem of damage to the sliding block 2 due to collision.
[0039] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.
[0040] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A miniature linear guide rail anti-fall-off limiting block assembly, characterized in that: The system includes a guide rail (1) and a sliding block (2) disposed on the upper end of the guide rail (1). The guide rail (1) has triangular grooves (13) on both sides. The sliding block (2) has cylindrical grooves through both sides, and a fixed rod (3) is disposed inside the cylindrical groove. Two springs (11) are sleeved around the fixed rod (3). Limiting blocks (4) are fixedly connected to both ends of the fixed rod (3). The two limiting blocks (4) are symmetrically distributed. Two limiting blocks (5) are disposed on the upper end of the guide rail (1). Rectangular grooves are disposed on both sides of the two limiting blocks (5), and a slider (6) is disposed through the rectangular groove. A triangular snap-fit block (7) is fixedly connected to one side of the two sliders (6), and a connecting rod (9) is disposed through the middle of the slider (6). A spring (10) is sleeved around the connecting rod (9).
2. The miniature linear guide anti-fall-off limiting block assembly according to claim 1, characterized in that: Two rolling grooves (14) are provided on the inner side of the triangular sliding groove (13). The two rolling grooves (14) are symmetrically distributed. Both ends of the connecting rod (9) are fitted with sleeves (8), and the sleeves (8) are slidably connected to the connecting rod (9).
3. The miniature linear guide anti-fall-off limiting block assembly according to claim 2, characterized in that: One end of the sleeve (8) is fixedly connected to a plug block (15), and the plug block (15) and the sliding block (2) are arranged in a through-hole configuration.
4. The miniature linear guide anti-fall-off limiting block assembly according to claim 3, characterized in that: The inner side of the sliding block (2) is fixedly connected to two triangular sliders, which are slidably connected inside the triangular groove (13), and the two springs (11) are symmetrically distributed.
5. The miniature linear guide anti-fall-off limiting block assembly according to claim 4, characterized in that: Both ends of the two triangular sliders are provided with rolling balls (12), which are tumbling connected inside the triangular sliders.
6. The miniature linear guide anti-fall-off limiting block assembly according to claim 5, characterized in that: The rolling ball (12) is tumbling connected inside the rolling groove (14).
7. The miniature linear guide anti-fall-off limiting block assembly according to claim 1, characterized in that: The fixing rod (3) is slidably connected to the cylindrical groove, and the triangular snap-fit block (7) is inserted into the triangular slide groove (13), and the size of the triangular snap-fit block (7) is slightly larger than that of the triangular slide groove (13).