Waterproof and dustproof linear module
By incorporating waterproof and dustproof components, including a waterproof cover, shielding strip, and cleaning brush, into the linear module, the problem of dust and water droplets entering due to the gap between the waterproof cover and the guide rail is solved, achieving higher sealing performance and cleaning effect, and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG CHUANGBO PRECISION TECH CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-05-15
AI Technical Summary
In the use of existing waterproof linear modules, the gap between the waterproof cover and the guide rail allows dust and particles to enter, affecting positioning accuracy and causing wear.
A waterproof and dustproof linear module was designed, which adopts a combination structure of a waterproof cover body, a rubber waterproof pad, a lower shielding strip, a side cleaning brush, and an upper shielding strip. The waterproof cover is located above the slider, and the lower shielding strip and the upper shielding strip are arranged alternately. The side cleaning brush and the upper cleaning brush remove dust and water droplets respectively, improving the sealing performance and cleaning effect.
It effectively prevents dust and water droplets from directly entering the guide rail and slider, reducing wear and jamming, and improving positioning accuracy and service life.
Smart Images

Figure CN224245266U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of linear module technology, specifically a waterproof and dustproof linear module. Background Technology
[0002] Linear modules, also known as Cartesian robots or linear slides, are automation upgrade units following linear guides, linear motion modules, and ball screw linear transmission mechanisms. They can achieve linear and curvilinear motion of loads through the combination of various units, making automation of light loads more flexible and positioning more precise.
[0003] According to an improved waterproof linear module (publication number: CN222996338U), the above application includes a guide rail, a motor support base, a support base protective cover, a motor, a top cover waterproof cover, and a tail plate waterproof cover. In this improved waterproof linear module, when the gear disk rotates, it will drive the arc-shaped groove to rotate together. When the arc-shaped groove rotates, it will abut against the slide rod. However, the moving block at the end of the slide rod away from the arc-shaped groove is located in the slide groove, so that the slide groove limits the moving block.
[0004] Although the aforementioned linear module is waterproof in actual use, the waterproof cover slides on the guide rail, and there is a gap between the waterproof cover and the guide rail. This allows dust floating in the air to enter the lead screw, and wear and particle jamming will cause backlash and gap drift, affecting the positional accuracy. In view of this, we propose a waterproof and dustproof linear module. Utility Model Content
[0005] The purpose of this invention is to provide a waterproof and dustproof linear module to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a waterproof and dustproof linear module, including a guide rail, a slider disposed inside the guide rail, and a waterproof and dustproof component disposed on the top of the slider, the waterproof and dustproof component comprising:
[0007] The waterproof cover body has a rubber waterproof pad fixedly connected to its bottom.
[0008] The lower shielding strip has a side cleaning brush fixedly connected to its top end face;
[0009] The upper shielding strip is fixedly connected to the side wall of the guide rail.
[0010] Preferably, a support base is fixedly connected to the side wall of the guide rail, a motor is fixedly connected to the side wall of the support base, an active synchronous pulley is fixedly connected to the output shaft of the motor, and a synchronous belt is driven to the side wall of the active synchronous pulley.
[0011] Preferably, a bearing is fixedly connected to the inner wall of the support base, the inner ring of the bearing is fixedly connected to the lead screw, the end face of the lead screw is fixedly connected to the driven synchronous pulley, the driven synchronous pulley is driven by the synchronous belt, a protective cover is fixedly connected to the side wall of the support base, and the lead screw is driven by the slider.
[0012] Preferably, a tail plate body is fixedly connected to the side wall of the guide rail, the tail plate body is sleeved with the lead screw, and a tail plate waterproof cover is fixedly connected to the side of the tail plate body away from the slider.
[0013] Preferably, the waterproof cover body is fixedly connected to the top end face of the slider, and the rubber waterproof pad is located between the waterproof cover body and the rubber waterproof pad, which improves the sealing degree between the waterproof cover body and the slider.
[0014] Preferably, the lower shielding strip is fixedly connected to the inner wall of the waterproof cover body, the side cleaning brush is arranged in a wave shape, the upper shielding strip is fixedly connected to the side wall of the guide rail, the top of the side cleaning brush is movably connected to the bottom of the upper shielding strip, and the side cleaning brush wipes the bottom of the upper shielding strip.
[0015] Preferably, an upper cleaning brush is fixedly connected to the inner top surface of the waterproof cover body, and the upper cleaning brush is movably connected to the top end face of the support base.
[0016] Compared with the prior art, this utility model provides a waterproof and dustproof linear module, which has the following beneficial effects:
[0017] 1. This waterproof and dustproof linear module, through its waterproof and dustproof components, ensures that the waterproof cover is always positioned above the guide rail and slider. Most dust, debris, and water droplets fall from above, and the waterproof cover's position at the top can immediately block them, preventing them from falling directly onto the guide rail and slider. The staggered arrangement of the lower and upper shielding strips increases the difficulty for water and dust to enter, greatly reducing the probability of entry. The side cleaning brush continuously wipes the bottom of the upper shielding strip, removing dust, water droplets, oil, and other contaminants in real time, preventing them from accumulating at the seams. The wavy shape allows the brush bristles to contact the bottom of the upper shielding strip at different positions during the sliding process, improving the thoroughness of cleaning.
[0018] 2. This waterproof and dustproof linear module uses an upper cleaning brush to remove dust, water droplets, oil mist and other impurities that fall on the support base in real time, continuously cleaning the top of the support base and preventing these contaminants from entering the interior through the top gaps, thus reducing wear and jamming. Attached Figure Description
[0019] Figure 1 This is an exploded view of the main body of this utility model;
[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the guide rail of this utility model;
[0021] Figure 3 This utility model Figure 2 Schematic diagram of the structure of region A in the middle;
[0022] Figure 4 This is a schematic diagram of the guide rail structure of this utility model;
[0023] Figure 5 This is a schematic diagram of the waterproof cover structure of this utility model;
[0024] Figure 6 This utility model Figure 5 Schematic diagram of the structure of region B in the middle;
[0025] Figure 7 This is a schematic diagram of the main structure of this utility model.
[0026] In the diagram: 1. Guide rail; 2. Slider; 3. Waterproof and dustproof assembly; 301. Waterproof cover body; 302. Rubber waterproof pad; 303. Lower shielding strip; 304. Side cleaning brush; 305. Upper shielding strip; 4. Support base; 5. Motor; 6. Driving synchronous pulley; 7. Synchronous belt; 8. Driven synchronous pulley; 9. Lead screw; 10. Tail plate body; 11. Tail plate waterproof cover; 12. Protective cover; 13. Upper cleaning brush. Detailed Implementation
[0027] like Figures 1-7 As shown, this utility model provides a technical solution: a waterproof and dustproof linear module, including a guide rail 1, a slider 2 is provided inside the guide rail 1, and a waterproof and dustproof component 3 is provided on the top of the slider 2. The waterproof and dustproof component 3 includes a waterproof cover body 301, a rubber waterproof pad 302, a lower shielding strip 303, a side cleaning brush 304, and an upper shielding strip 305.
[0028] In one embodiment of this utility model, the waterproof cover body 301 is fixedly connected to the top end face of the slider 2, and a rubber waterproof pad 302 is fixedly connected to the bottom of the waterproof cover body 301. The rubber waterproof pad 302 is located between the waterproof cover body 301 and the rubber waterproof pad 302, and the rubber waterproof pad 302 improves the sealing degree between the waterproof cover body 301 and the slider 2.
[0029] The lower shielding strip 303 is fixedly connected to the inner wall of the waterproof cover body 301. A side cleaning brush 304 is fixedly connected to the top end face of the lower shielding strip 303. The side cleaning brush 304 is wavy. The upper shielding strip 305 is fixedly connected to the side wall of the guide rail 1. The top of the side cleaning brush 304 is movably connected to the bottom of the upper shielding strip 305. The side cleaning brush 304 wipes the bottom of the upper shielding strip 305.
[0030] A support base 4 is fixedly connected to the side wall of the guide rail 1. A motor 5 is fixedly connected to the side wall of the support base 4. An active synchronous pulley 6 is fixedly connected to the output shaft of the motor 5. A synchronous belt 7 is driven to the side wall of the active synchronous pulley 6. A bearing is fixedly connected to the inner wall of the support base 4. The inner ring of the bearing is fixedly connected to the lead screw 9. The end face of the lead screw 9 is fixedly connected to the driven synchronous pulley 8. The driven synchronous pulley 8 is driven to the synchronous belt 7. A protective cover 12 is fixedly connected to the side wall of the support base 4. The lead screw 9 is driven to the slider 2. A tail plate body 10 is fixedly connected to the side wall of the guide rail 1. The tail plate body 10 is sleeved with the lead screw 9. A tail plate waterproof cover 11 is fixedly connected to the side of the tail plate body 10 away from the slider 2.
[0031] The waterproof cover body 301 is always located above the guide rail 1 and the slider 2. Most dust, debris, and water droplets fall from above. The waterproof cover, being located above, can block them immediately, preventing them from falling directly onto the guide rail 1 and the slider 2. The protection from above can minimize direct contact and extend the service life of the guide rail 1 and the slider 2.
[0032] The lower shielding strip 303 and the upper shielding strip 305 are staggered. The S-shaped staggering prevents water droplets and dust from entering the guide rail 1 in a straight line. They must go around multiple bends to pass through, which increases the difficulty of water and dust entering and greatly reduces the probability of entry.
[0033] As the slider 2 and the waterproof cover body 301 move laterally, the side cleaning brush 304 continuously wipes the bottom of the upper shielding strip 305, removing dust, water droplets, oil stains and other contaminants in real time to prevent them from accumulating at the seams. Even if dust and water droplets fall to the bottom of the shielding strip, they will be brushed off when the slider 2 passes by again, reducing the chance of them entering the interior. The wavy shape allows the bristles to contact the bottom of the upper shielding strip 305 at different positions during the sliding process, which can scrape off contaminants on flat surfaces, pits, scratches and other areas, making it less likely to miss any areas than a straight brush.
[0034] In addition, an upper cleaning brush 13 is fixedly connected to the inner top surface of the waterproof cover body 301. The upper cleaning brush 13 is movably connected to the top end face of the support base 4. When the slider 2 and the waterproof cover body 301 move laterally, the upper cleaning brush 13 will slide along the top of the support base 4 to remove dust, water droplets, oil mist and other impurities that fall on it in real time, continuously clean the top of the support base 4, prevent these contaminants from entering the interior from the top gap, and reduce wear and jamming.
[0035] In this invention, during use, the motor 5 drives the active synchronous wheel 6 to rotate, which in turn drives the driven synchronous wheel 8 to rotate via the synchronous belt 7. The driven synchronous wheel 8 drives the lead screw 9 to rotate, and the slider 2 is slidably connected to the inner wall of the guide rail 1. This allows the rotation of the lead screw 9 to drive the slider 2 to slide laterally along the guide rail 1. The lower shielding strip 303 and the upper shielding strip 305 are staggered, and the S-shaped staggering prevents water droplets and dust from entering the guide rail 1 in a straight line, increasing the difficulty of water and dust entering. The side cleaning brush 304 continuously wipes the bottom of the upper shielding strip 305, removing dust, water droplets, oil stains and other contaminants in real time to prevent them from accumulating at the joints. Even if dust and water droplets fall to the bottom of the shielding strip, they will be brushed off when the slider 2 passes by again.
[0036] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A waterproof and dustproof linear module, comprising a guide rail (1), wherein a slider (2) is disposed inside the guide rail (1), characterized in that: The top of the slider (2) is provided with a waterproof and dustproof component (3), which includes: A waterproof cover body (301) is provided, and a rubber waterproof pad (302) is fixedly connected to the bottom of the waterproof cover body (301); A lower shielding strip (303) is provided, and a side cleaning brush (304) is fixedly connected to the top end face of the lower shielding strip (303); The upper shielding strip (305) is fixedly connected to the side wall of the guide rail (1).
2. The waterproof and dustproof linear module according to claim 1, characterized in that: A support base (4) is fixedly connected to the side wall of the guide rail (1), a motor (5) is fixedly connected to the side wall of the support base (4), an active synchronous pulley (6) is fixedly connected to the output shaft of the motor (5), and a synchronous belt (7) is driven to the side wall of the active synchronous pulley (6).
3. A waterproof and dustproof linear module according to claim 2, characterized in that: The inner wall of the support base (4) is fixedly connected to a bearing, the inner ring of the bearing is fixedly connected to a lead screw (9), the end face of the lead screw (9) is fixedly connected to a driven synchronous pulley (8), the driven synchronous pulley (8) is driven by a synchronous belt (7), the side wall of the support base (4) is fixedly connected to a protective cover (12), and the lead screw (9) is driven by a slider (2).
4. A waterproof and dustproof linear module according to claim 1, characterized in that: The guide rail (1) is fixedly connected to the side wall of the tail plate body (10), the tail plate body (10) is sleeved with the lead screw (9), and the tail plate body (10) is fixedly connected to the side away from the slider (2) with a tail plate waterproof cover (11).
5. A waterproof and dustproof linear module according to claim 1, characterized in that: The waterproof cover body (301) is fixedly connected to the top end face of the slider (2), and the rubber waterproof pad (302) is located between the waterproof cover body (301) and the rubber waterproof pad (302).
6. A waterproof and dustproof linear module according to claim 1, characterized in that: The lower shielding strip (303) is fixedly connected to the inner wall of the waterproof cover body (301), the side cleaning brush (304) is wavy, the upper shielding strip (305) is fixedly connected to the side wall of the guide rail (1), and the top of the side cleaning brush (304) is movably connected to the bottom of the upper shielding strip (305).
7. A waterproof and dustproof linear module according to claim 1, characterized in that: The top surface of the waterproof cover body (301) is fixedly connected to an upper cleaning brush (13), and the upper cleaning brush (13) is movably connected to the top end face of the support base (4).