Water tank anti-pinch structure for floor washing robot

Abstract

The utility model relates to a water tank anti-pinch structure for a floor washing robot, which comprises a water tank main body, a water tank frame mounted at the top of the water tank main body, a tank cover arranged at the rear end of the water tank frame, and fixed cylinders mounted on two sides of the bottom of the water tank frame. After the sewage tank cover is completely closed, the spring can store energy, when the sewage tank cover is opened, the spring can drive the first movable rod body to pop up upwards and drive the universal ball to abut against the sewage tank cover to move upwards, the sewage tank cover can be automatically popped up to be opened, and when the sewage tank cover is closed, the universal ball can be driven to abut against the sewage tank cover to move upwards. The first movable rod body and the universal ball are used for abutting against the sewage tank cover, the situation that the sewage tank cover is directly closed, and the hands of workers are pinched is avoided, when the sewage tank cover is pressed downwards, the self-locking mechanism does not need to be driven to move to unlock the locking state, and the tank cover closing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of floor cleaning robots, specifically to a water tank anti-pinch structure for floor cleaning robots. Background Technology

[0002] When cleaning the wastewater tank of the floor cleaning robot, the wastewater tank cover needs to be opened. Since the wastewater tank cover is connected to the wastewater tank by a hinge, the wastewater tank cover is relatively heavy and is easily bumped and closed during manual cleaning operations. When it closes, it can easily pinch a person's hand and cause injury.

[0003] Patent application number 202220962856.7 discloses an anti-pinch structure for the water tank of a floor cleaning robot, including a wastewater tank, a wastewater tank cover, a hinge, and a self-locking hinge. The wastewater tank and the wastewater tank cover are fixedly connected by the hinge and the self-locking hinge. A second fixed seat and a second movable seat are hinged by a pin. Both sides of the second fixed seat are provided with arc holes, and a round hole is provided at the rear end of one of the arc holes. A locking shaft is slidably connected to the second movable seat. Shaft segment I and shaft segment II are fixedly connected to the locking shaft. An open retaining ring is engaged between shaft segment I and shaft segment II. A return spring is provided between the open retaining ring and the second movable seat. When the second movable seat is unfolded, shaft segment II is inserted into the arc hole to fix the second movable seat. This can solve the problem of the wastewater tank cover accidentally closing and pinching the user's hand, ensuring the safety of the user and greatly improving the user experience of the floor cleaning robot.

[0004] In practical applications, the traditional anti-pinch structure for water tanks used in floor cleaning robots uses a locking shaft to lock the water tank lid, thus preventing the worker's hand from being pinched when the water tank lid is closed. However, this anti-pinch method requires unlocking when closing the water tank lid, which means that the worker has to unlock the lid every time the water tank lid is opened and closed, which wastes a lot of time and reduces the efficiency of opening and closing the water tank lid.

[0005] For example, when closing the sewage tank cover, the operator needs to manually operate the handle to move the self-locking mechanism to release the lock. This operation method means that every time the sewage tank cover is opened or closed, the operator must directly contact and operate the locking mechanism, which not only increases the operation steps but also consumes extra time, thereby reducing the operating efficiency of the sewage tank cover. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a water tank anti-pinch structure for floor cleaning robots. This solves the problem that the current traditional water tank anti-pinch structure for floor cleaning robots uses a locking shaft to lock the water tank lid, thereby preventing the worker's hand from being pinched when the water tank lid is closed. However, this anti-pinch method requires unlocking when closing the water tank lid, which means that the worker needs to unlock the lid every time the water tank lid is opened and closed, which wastes a lot of time and reduces the efficiency of opening and closing the water tank lid.

[0007] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: design a water tank anti-pinch structure for a floor cleaning robot, including a water tank body, a water tank frame installed on the top of the water tank body, a tank cover provided at the rear end of the water tank frame, and the tank cover and the water tank frame are connected by a hinge, and a fixing cylinder is installed on both sides of the bottom of the water tank frame, and an anti-pinch component is installed on the outside of the fixing cylinder.

[0008] In practical applications, when the sewage tank lid is closed to the tank body, the sewage tank lid contacts the universal ball at the top of the first moving rod, causing the sewage tank lid to move downward against the universal ball. The universal ball then moves the first moving rod downward, which in turn moves the first moving plate downward, compressing the spring. This causes the ball seat and universal ball to enter the round hole on the surface of the tank lid. After the sewage tank lid is fully closed, the spring stores energy. When the sewage tank lid is opened, the spring causes the first moving rod to spring upward, causing the universal ball to move upward against the sewage tank lid. This not only automatically opens the sewage tank lid, but also prevents the sewage tank lid from closing directly and pinching the operator's hand when it is closed, thanks to the first moving rod and universal ball.

[0009] Preferably, the anti-pinch assembly includes a spring, a first movable plate, a second movable plate, a first movable rod, a second movable rod, a ball seat, a universal ball, and a pressure plate.

[0010] Preferably, the first movable rod and the second movable rod pass through the upper and lower ends of the fixed cylinder, and the first movable plate and the second movable plate are fixed at one end of the first movable rod and the second movable rod inside the fixed cylinder, and the first movable plate and the second movable plate are connected by a spring.

[0011] Preferably, a ball seat is fixed to one end of the first movable rod extending out of the fixed cylinder, and a universal ball is rotatably connected inside the ball seat; a pressure plate is fixed to one end of the second movable rod extending out of the fixed cylinder.

[0012] In practical applications, when the water tank is placed into the placement slot of the floor cleaning robot, the pressure plate can press against the placement slot, allowing the spring to store energy. When the water tank needs to be cleaned, the cover of the floor cleaning robot can be opened, and the water tank body can be directly popped out. There is no need for the staff to reach into the placement slot to lift the water tank in the narrow space, making the lifting of the water tank more effortless. The lifting mechanism and the anti-pinch mechanism are integrated into one unit.

[0013] Preferably, the water tank frame has round holes on both sides of the top, and the first movable rod passes through the holes. The inner side of the round holes has an opening.

[0014] Preferably, one end of a fixing strip is fixed to the inner side of the ball seat, and the size of the fixing strip matches the size of the opening.

[0015] Preferably, one end of a support rod is fixed to the bottom of the fixing strip, and a filter screen is fixed to the other end of the support rod.

[0016] In practical applications, when the sewage tank cover is opened, the first moving rod causes the universal ball to bounce up. The ball seat then moves the fixed plate upward, which in turn moves the support rod upward. The support rod then moves the filter screen inside the tank body upward, thus lifting the filter screen directly to the top of the tank body. This allows staff to directly clean the dirt on the surface of the filter screen, improving the convenience of cleaning the filter screen. Furthermore, during the upward movement of the filter screen, the frame scraper also moves upward, assisting in scraping away dirt from the inner wall of the tank body.

[0017] Preferably, the filter screen is located inside the water tank body, and a frame-shaped scraper is fixed to the outer wall of the filter screen. The end of the frame-shaped scraper away from the filter screen is in contact with the inner wall of the water tank body.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. In this invention, after the sewage tank lid is fully closed, the spring stores energy. When the sewage tank lid is opened, the spring will cause the first moving rod to pop up, causing the universal ball to push against the sewage tank lid and move upward. This not only allows the sewage tank lid to open automatically, but also allows the first moving rod and universal ball to hold the sewage tank lid in place when it is closed, preventing the sewage tank lid from closing directly and pinching the operator's hand. When pressing down, there is no need to drive the self-locking mechanism to move to release the locked state, thus improving the efficiency of closing the lid.

[0020] 2. When the water tank is placed in the placement slot of the floor cleaning robot, the pressure plate holds the placement slot in place, allowing the spring to store energy. This allows the water tank to pop out directly when cleaning is needed, eliminating the need for workers to reach into the placement slot and laboriously lift the water tank in the narrow space. This greatly reduces the workload of workers and improves operational efficiency. The integrated design of the lifting mechanism and the anti-pinch mechanism not only makes the overall structure more compact but also achieves functional integration.

[0021] 3. After the sewage tank cover is opened, the filter screen can automatically rise to the top of the tank, making it easy for staff to clean the surface dirt directly and improving cleaning convenience. At the same time, the upward movement of the filter screen drives the frame scraper to move upward, assisting in scraping away dirt from the inner wall of the tank body and enhancing the cleaning effect. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the anti-pinch lifting component structure of this utility model;

[0024] Figure 3 This is an enlarged structural diagram of point A in this utility model;

[0025] Figure 4 This is a schematic diagram of the frame-shaped scraper structure of this utility model.

[0026] In the diagram: 1. Water tank body; 101. Water tank frame; 102. Tank cover; 2. Fixed cylinder; 201. Round hole; 202. First moving rod; 203. Ball seat; 204. Universal ball; 205. Second moving rod; 206. Pressure plate; 207. First moving plate; 208. Spring; 209. Opening; 210. Second moving plate; 3. Fixed strip; 301. Support rod; 302. Filter screen; 303. Frame scraper. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0028] Example 1: A water tank anti-pinch structure for a floor cleaning robot, see [link / reference] Figures 1 to 4 The system includes a water tank body 1, a water tank frame 101 installed on the top of the water tank body 1, a tank cover 102 provided at the rear end of the water tank frame 101, and the tank cover 102 and the water tank frame 101 are connected by a hinge. Fixed cylinders 2 are installed on both sides of the bottom of the water tank frame 101, and anti-pinch components are installed on the outside of the fixed cylinders 2.

[0029] Specifically, when the sewage tank cover 102 is closed to the water tank body 1, the sewage tank cover 102 contacts the universal ball 204 at the top of the first moving rod 202, causing the sewage tank cover 102 to move downward against the universal ball 204. The universal ball 204 then moves the first moving rod 202 downward. When the first moving rod 202 moves downward, it moves the first moving plate 207 downward, compressing the spring 208. This causes the ball seat 203 and the universal ball 204 to enter the round hole 201 on the surface of the tank cover 102. After the sewage tank cover 102 is fully closed, the spring 208 stores energy. When the sewage tank cover 102 is opened, the spring 208 will cause the first moving rod 202 to pop up, causing the universal ball 204 to push against the sewage tank cover 102 and move upward. This not only allows the sewage tank cover 102 to open automatically, but also allows the first moving rod 202 and the universal ball 204 to push against the sewage tank cover 102 when it is closed, preventing the sewage tank cover 102 from closing directly and pinching the staff's hands.

[0030] For example, when closing the sewage tank cover 102, the operator needs to manually operate the handle to drive the self-locking mechanism to move and unlock it. This operation method means that every time the sewage tank cover 102 is opened or closed, the operator must directly contact and operate the locking mechanism, which not only increases the number of operation steps but also consumes extra time, thereby reducing the operating efficiency of the sewage tank cover 102.

[0031] In practical use, this solution allows the sewage tank cover 102 to be moved downwards. After the sewage tank cover 102 is fully closed, the spring 208 stores energy. When the sewage tank cover 102 is opened, the spring 208 will cause the first moving rod 202 to pop upwards, causing the universal ball 204 to push against the sewage tank cover 102 and move upwards. This not only allows the sewage tank cover 102 to open automatically, but also allows the first moving rod 202 and the universal ball 204 to push against the sewage tank cover 102 when it is closed, preventing the sewage tank cover 102 from closing directly and pinching the workers' hands.

[0032] For details, see Figure 2 The anti-pinch assembly includes a spring 208, a first movable plate 207, a second movable plate 210, a first movable rod 202, a second movable rod 205, a ball seat 203, a universal ball 204, and a pressure plate 206.

[0033] For more details, see Figure 2 The first movable rod 202 and the second movable rod 205 pass through the upper and lower ends of the fixed cylinder 2 respectively, and the first movable plate 207 and the second movable plate 210 are fixed at one end of the first movable rod 202 and the second movable rod 205 inside the fixed cylinder 2. The first movable plate 207 and the second movable plate 210 are connected by a spring 208.

[0034] Further, see Figure 2 The first movable rod 202 has a ball seat 203 fixed at one end extending out of the fixed cylinder 2. A universal ball 204 is rotatably connected inside the ball seat 203. The second movable rod 205 has a pressure plate 206 fixed at one end extending out of the fixed cylinder.

[0035] Specifically, when the water tank is placed into the placement slot of the floor cleaning robot, the pressure plate 206 can be pressed against the placement slot of the floor cleaning robot. The pressure plate 206 will drive the second moving rod 205 and the second moving plate 210, thereby using the second moving plate 210 to compress the spring 208, so that the spring 208 stores energy. When the water tank needs to be cleaned, the cover of the floor cleaning robot can be opened, and the water tank body 1 can be directly popped out. There is no need for the staff to put their hands into the placement slot to lift the water tank in the narrow space, making the lifting of the water tank more effortless. The lifting mechanism and the anti-pinch mechanism are integrated into one unit.

[0036] For example, in traditional methods, when the water tank needs to be cleaned, workers must manually reach into the narrow space inside the tank and laboriously lift it up. This method is not only time-consuming and laborious, but also prone to causing injury to the workers' hands due to the confined space.

[0037] In practical use, this solution works as follows: the pressure plate 206 presses against the placement slot, causing the second moving rod 205 and the second moving plate 210 to move upwards. Energy is stored in the spring 208. During cleaning, the water tank body 1 can be directly ejected by simply opening the cover of the floor cleaning robot, eliminating the need for staff to reach into the confined space to lift it. This not only saves effort and is convenient but also greatly improves operational safety, avoiding the risk of hand injury. At the same time, the integrated design of the lifting mechanism and the anti-pinch mechanism makes the overall structure more compact and reliable.

[0038] Further, see Figure 1 The water tank frame 101 has round holes 201 on both sides of the top, and the first moving rod 202 passes through the holes. The inner side of the round holes 201 has an opening 209.

[0039] It is worth noting that, see Figure 1 One end of a fixing strip 3 is fixed to the inner side of the ball seat 203, and the size of the fixing strip 3 matches that of the opening 209.

[0040] It is worth noting that, see Figure 1 One end of a support rod 301 is fixed to the bottom of the fixed strip 3, and the other end of the support rod 301 is fixed to a filter screen 302.

[0041] It is worth mentioning that, see Figure 1 and Figure 4The filter screen 302 is located inside the water tank body 1, and a frame-shaped scraper 303 is fixed on the outer wall of the filter screen 302. The end of the frame-shaped scraper 303 away from the filter screen 302 is attached to the inner wall of the water tank body 1.

[0042] Specifically, when the sewage tank cover 102 is opened, the first moving rod 202 causes the universal ball 204 to spring up. The ball seat 203 then moves the fixing plate 3 upward, which in turn moves the support rod 301 upward. The support rod 301 then moves the filter screen 302 inside the tank body 1 upward, thereby lifting the filter screen 302 inside the tank body 1 directly to the top of the tank body 1. This allows staff to directly clean the dirt on the surface of the filter screen 302, improving the convenience of cleaning the surface dirt. Moreover, during the upward movement of the filter screen 302, the frame scraper 303 is also moved upward, thus assisting in scraping away dirt from the inner wall of the tank body 1.

[0043] For example, in traditional solutions, when it is necessary to clean the filter screen 302 inside the main body 1 of the water tank, the staff usually need to manually remove the filter screen 302 from the water tank, or use tools and operations to access the filter screen 302 for cleaning. This is not only tedious and time-consuming, but also increases the labor intensity of the staff because the filter screen 302 may be heavy or inconveniently located. There is also a risk that improper operation may damage the filter screen 302 or the internal structure of the water tank.

[0044] In practical use, this solution achieves automatic lifting of the filter screen 302 by setting up a first moving rod 202, a universal ball joint 204, a ball seat 203, a fixed strip 3, and a support rod 301. When the sewage tank cover 102 is opened, the filter screen 302 can be directly lifted to the top of the tank body 1, allowing staff to easily access and clean the surface of the filter screen 302, greatly improving the convenience of cleaning. At the same time, the frame-shaped scraper 303 driven by the upward movement of the filter screen 302 can also assist in scraping away dirt from the inner wall of the tank body 1, enhancing the cleaning effect. This not only saves time and effort but also reduces the risks and potential damage during operation, improving the overall user experience and efficiency.

[0045] It should be noted that when the tank cover 102 is closed, the filter screen 302 is located in the middle area of ​​the water tank body 1. Due to the presence of the filter screen 302, a large amount of impurities are easily accumulated on the inner wall of the water tank body 1 above it. In order to keep the water tank clean, it is necessary to scrape off the impurities in these upper positions. However, the lower part of the inner wall of the water tank body 1 has relatively few impurities and dirt because it has already been filtered by the filter screen 302. Therefore, no additional cleaning work is required for this position.

[0046] A universal ball 204 is provided on the top of the ball seat 203. The universal ball 204 can roll freely. When the lid 102 is tilted and pressed down, its edge will contact the universal ball 204 and apply a downward pressure. Due to the rolling characteristics of the universal ball 204, this downward pressure will cause the universal ball 204 to roll. At the same time, the universal ball 204 is connected to the ball seat 203, and the ball seat 203 is fixed to the top of the first moving rod 202. Therefore, the rolling of the universal ball 204 will drive the first moving rod 202 to move downward in the vertical direction. By tilting the lid 102 and pressing down, the universal ball 204, the ball seat 203 and the first moving rod 202 can be driven to move downward vertically.

[0047] The spring 208 in this application is a compression spring 208. When the compression spring 208 is subjected to compression force, it will generate a reaction force. It is suitable for the anti-pinch and lifting functions in this scenario. The elasticity and deformation of the compression spring 208 can be controlled by adjusting its wire diameter, mean diameter, number of coils and other parameters according to the actual weight of the box cover 102 and the required lifting height.

[0048] The tank cover 102 is fixed to the water tank body 1 using a conventional snap-fit ​​connection method. This snap-fit ​​connection is within the scope of existing technology, and its structure and working principle are well known and widely used in this technical field. Therefore, there is no need to elaborate on its specific details in this application.

[0049] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0050] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A water tank anti-pinch structure for a floor cleaning robot, comprising a water tank body (1), characterized in that, The water tank body (1) top is equipped with water tank frame (101), water tank frame (101) rear end is provided with tank cover (102), and tank cover (102) is connected between water tank frame (101) through hinge, water tank frame (101) bottom both sides are equipped with fixed cylinder body (2), fixed cylinder body (2) inside is equipped with anti-pinch hand lifting assembly, anti-pinch hand lifting assembly includes spring (208), first moving plate body (207), second moving plate body (210), first moving rod body (202), second moving rod body (205), ball seat (203), universal ball (204), pressure plate (206), first moving rod body (202) and second moving rod body (205) respectively penetrate fixed cylinder body (2) upper and lower ends, and one end of first moving rod body (202) and second moving rod body (205) in fixed cylinder body (2) is fixed with first moving plate body (207) and second moving plate body (210), and first moving plate body (207) and second moving plate body (210) are connected through spring (208).

2. The water tank anti-pinch structure for a floor cleaning robot of claim 1, wherein, The one end of first moving rod body (202) fixed in fixed cylinder body (2) is provided with ball seat (203), universal ball (204) is rotatably connected in ball seat (203), and the one end of second moving rod body (205) fixed in fixed cylinder is provided with pressure plate (206).

3. The water tank anti-pinch structure for a floor cleaning robot of claim 1, wherein, The both sides of water tank frame (101) top are provided with circular hole (201), and first moving rod body (202) penetrates in circular hole (201), and the inner side of circular hole (201) is provided with opening (209).

4. The water tank anti-pinch structure for a floor cleaning robot of claim 1, wherein, One end of fixed strip plate (3) is fixed on the inner side of ball seat (203), and the size of fixed strip plate (3) is matched with opening (209).

5. The water tank anti-pinch structure for a floor cleaning robot of claim 4, wherein, One end of support rod body (301) is fixed on the bottom of fixed strip plate (3), and the other end of support rod body (301) is fixed with filter screen body (302).

6. The water tank anti-pinch structure for a floor cleaning robot of claim 5, wherein, Filter screen body (302) is located in water tank body (1), and frame-shaped scraping strip (303) is fixed on the outer wall of filter screen body (302), and the end of frame-shaped scraping strip (303) away from filter screen body (302) is attached to the inner wall of water tank body (1).

Images