Underwater mud scraper limiting device
By using a combination limit device of the magnet and the Hall sensor in the underwater scraping machine limit device, the problem of the mechanical sensor wear is solved, the high -precision position detection and the automatic return operation have been achieved, and the service life of the device is extended.
Patent Information
- Application Number
- CN202420925334.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-04-30
AI Technical Summary
In the existing underwater mud scraper limiting device, mechanical sensors are prone to wear, resulting in a decrease in accuracy and reliability.
The combination limit device of the magnet and the Hall sensor is used to accurately detect the position of the mud car through the non -contact detection of the magnet and the Hall sensor, and automatically trigger the return operation through the trigger rod and the limit switch.
It improves the accuracy of the position detection of the mud car, reduces mechanical wear, extends the service life of the equipment, and realizes the reliability of automatic return operation.
Smart Images
Figure CN222400367U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mud scrapers, in particular to a limiting device for underwater mud scrapers. Background Art
[0002] During sewage treatment, workers usually use a sedimentation tank to flocculate and settle the sewage. After flocculation, the solid pollutants settle to the bottom of the tank. Then the scraper is operated to work back and forth, and the scraper plate at the bottom of the scraper is used to scrape out the sludge at the bottom of the sludge tank.
[0003] Existing underwater scraper limit devices generally use limit sensors, but the working environment of underwater scrapers is usually harsh. Long-term use and long-term exposure to the air of the sensors cause wear of the mechanical parts of the sensors, thereby affecting their accuracy and reliability. Utility Model Content
[0004] Based on this, the purpose of the utility model is to provide an underwater scraper limit device to solve the technical problem that mechanical sensors are prone to wear and failure.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an underwater scraper limiting device, comprising a sedimentation tank, a scraper vehicle is arranged inside the sedimentation tank, a lower magnet is fixedly connected to the bottom of the scraper vehicle, a front magnet and a rear magnet are respectively fixedly connected to the front and rear sides of the scraper vehicle, a front sensor box is fixedly connected to the front side of the sedimentation tank, a bottom sensor box is fixedly connected to the bottom of the sedimentation tank, and a rear sensor box is fixedly connected to the rear side of the sedimentation tank.
[0006] By adopting the above technical solution, the sedimentation tank, the scraper truck, and the lower magnet, front magnet and rear magnet fixed on the scraper truck cooperate with the front sensor box, bottom sensor box and rear sensor box, so that the device can accurately detect the position of the scraper truck in the sedimentation tank and trigger it at the appropriate trigger position.
[0007] Furthermore, Hall sensors are arranged inside the front sensor box, the bottom sensor box and the rear sensor box.
[0008] By adopting the above technical solution, by arranging Hall sensors inside the front sensor box, the bottom sensor box and the rear sensor box, accurate detection of the position of the scraper truck can be achieved. The Hall sensor is a sensor based on the Hall effect, which can sense changes in the magnetic field to determine the position of the scraper truck.
[0009] Furthermore, a front control box is fixedly connected to the top of the front side of the sedimentation tank, and the front control box is connected to the front sensor box and the bottom sensor box through a first connecting pipe.
[0010] By adopting the above technical solution, the front control box fixedly connected to the top of the front side of the sedimentation tank can conveniently and centrally control and monitor the Hall sensors in the front sensor box and the bottom sensor box, making the control system of the equipment more centralized and convenient for operation and maintenance.
[0011] Furthermore, a rear control box is fixedly connected to the top of the rear side of the sedimentation tank, and the rear control box is connected to the rear sensor box through a first connecting pipe.
[0012] By adopting the above technical solution, by fixing the rear control box on the top of the rear side of the sedimentation tank, centralized control and monitoring of the Hall sensor in the rear sensor box can be achieved, making the position detection of the scraper truck on the rear side of the sedimentation tank more convenient and efficient.
[0013] Furthermore, a trigger rod is fixedly connected to the top of the mud scraper vehicle.
[0014] By adopting the above technical solution, a trigger rod is fixedly connected to the top of the scraper truck, which provides a physical trigger mechanism for the scraper truck. When the scraper truck runs to a specific position, it interacts with subsequent equipment, thereby achieving precise control of the start and stop of the scraper truck.
[0015] Furthermore, a limit switch is provided on one side of the front control box, two limit switches are provided, and a pull rope is connected between the two limit switches.
[0016] By adopting the above technical solution, two limit switches are set on one side of the front control box and a pull rope is connected between the two limit switches. A simple and effective physical limit mechanism is provided. When the scraper truck moves to a predetermined position, the trigger rod touches the pull rope, thereby triggering the limit switch to stop the scraper truck.
[0017] Furthermore, the front control box is connected to the front sensor box and the bottom sensor box via a second connecting pipe, and the rear control box is connected to the rear sensor box via a second connecting pipe.
[0018] By adopting the above technical solution, the front control box is connected to the front sensor box and the bottom sensor box, and the rear control box is connected to the rear sensor box through the second connecting pipe, thereby ensuring a stable connection between the control system and the sensor. The second connecting pipe is used as a protective and fixing structure for the transmission line, which can effectively prevent the line from being damaged or loosened, thereby improving the stability and reliability of the entire system.
[0019] Furthermore, slideways are fixedly connected to the inner walls on both sides of the second connecting pipe, and a sliding trolley is slidably connected between the two slideways.
[0020] By adopting the above technical solution, by fixing the connecting slides on the inner walls on both sides of the second connecting pipe, a stable sliding track is provided for the sliding trolley, so that the sliding trolley can move smoothly on the slides, which provides convenience for subsequent maintenance and inspection work.
[0021] Furthermore, a groove is provided inside the sliding trolley, and a buckle is provided inside the groove.
[0022] By adopting the above technical solution, a groove is opened inside the sliding trolley to provide a stable installation space for the Hall sensor, thereby ensuring the stability and accuracy of the sensor during installation and use.
[0023] Furthermore, a rubber rod is fixedly connected to one side of the sliding trolley.
[0024] By adopting the above technical solution, a rubber rod is fixedly connected to one side of the sliding trolley to provide an operator with a convenient pushing point. The soft material and suitable length design of the rubber rod enable the operator to easily push the sliding trolley to move on the slide, thereby improving the convenience and efficiency of the operation.
[0025] In summary, the utility model mainly has the following beneficial effects:
[0026] 1. The utility model realizes accurate detection of the position of the scraper truck by setting the lower magnet, the front magnet, the rear magnet and the Hall sensor. The non-contact detection method not only improves the accuracy of position detection, but also reduces mechanical wear, thereby extending the service life of the equipment. The limit device using the magnet and the Hall sensor has the advantages of high precision, long life, easy maintenance, etc., which provides a strong guarantee for the safe operation of the scraper truck;
[0027] 2. The utility model provides a trigger rod and a pull rope. The trigger rod can interact with other pull ropes when the scraper truck runs to a specific position. When the trigger rod touches the pull rope, the limit switch connected thereto is driven to operate, so that the scraper truck can automatically trigger the return operation when it reaches the predetermined position. No additional manual control is required. The additional trigger function is used to achieve reliable return.
[0028] 3. The utility model provides a second connecting tube, a sliding trolley and a groove. By providing the second connecting tube, a stable sliding track is provided for the sliding trolley, ensuring that the sliding trolley can move smoothly in the tube. The design of the sliding trolley and the groove provides great convenience for the installation and replacement of the Hall sensor. When the Hall sensor is damaged, the maintenance personnel only need to pull the rubber rod to slide the sliding trolley along the second connecting tube, and then easily take out the damaged sensor inside the groove, and put the new sensor into the groove to be clamped, which reduces maintenance time and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0030] Figure 2 It is a rear view structural schematic diagram of the utility model;
[0031] Figure 3 This is a schematic diagram of the side sectional structure of the second embodiment of the utility model;
[0032] Figure 4 It is a schematic diagram of the cutaway structure of the second connecting pipe of the utility model.
[0033] In the figure: 1, sedimentation tank; 2, mud scraper; 3, lower magnet; 4, front magnet; 5, rear magnet; 6, front sensor box; 7, bottom sensor box; 8, rear sensor box; 9, front control box; 10, first connecting pipe; 11, rear control box; 12, limit switch; 13, trigger rod; 14, second connecting pipe; 15, Hall sensor; 16, pull rope; 141, slide; 142, sliding trolley; 143, groove; 144, buckle; 145, rubber rod. DETAILED DESCRIPTION
[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.
[0035] The following describes an embodiment of the utility model based on its overall structure. Embodiment 1:
[0036] A limit device for an underwater scraper, such as Figure 1-Figure 4 As shown, it includes a sedimentation tank 1, and a mud scraper 2 is arranged inside the sedimentation tank 1. The bottom of the mud scraper 2 is fixedly connected with a lower magnet 3, and the front and rear sides of the mud scraper 2 are respectively fixedly connected with a front magnet 4 and a rear magnet 5. The front side of the sedimentation tank 1 is fixedly connected with a front sensor box 6, the bottom of the sedimentation tank 1 is fixedly connected with a bottom sensor box 7, and the rear side of the sedimentation tank 1 is fixedly connected with a rear sensor box 8. The sedimentation tank 1, the mud scraper 2, and the lower magnet 3, front magnet 4 and rear magnet 5 fixed on the mud scraper cooperate with the front sensor box 6, the bottom sensor box 7 and the rear sensor box 8, so that the device can accurately detect the position of the mud scraper 2 in the sedimentation tank 1 and trigger it at a suitable triggering position. At the same time, the non-contact detection method of the magnet and the sensor box not only reduces mechanical wear and improves the service life of the equipment, but also avoids errors caused by sludge accumulation, thereby ensuring the accuracy and stability of the mud scraper limit device.
[0037] See also Figure 1 , Figure 2 and Figure 3 , Hall sensors 15 are arranged inside the front sensor box 6, the bottom sensor box 7 and the rear sensor box 8. By arranging the Hall sensors 15 inside the front sensor box 6, the bottom sensor box 7 and the rear sensor box 8, accurate detection of the position of the scraper vehicle 2 can be achieved. The Hall sensor 15 is a sensor based on the Hall effect, which can sense changes in the magnetic field to determine the position of the scraper vehicle 2. At the same time, the Hall sensor 15 has the advantages of high sensitivity, high response speed, low energy consumption, etc., so that the scraper limit device can respond to the position changes of the scraper vehicle 2 more quickly and accurately, thereby improving the working efficiency and stability of the entire device. The Hall sensor has a long service life, strong adaptability to the environment, and can work stably in a closed environment, further enhancing the reliability and durability of the device.
[0038] See also Figure 1 , Figure 2 and Figure 3 A front control box 9 is fixedly connected to the top of the front side of the sedimentation tank 1, and the front control box 9 is connected to the front sensor box 6 and the bottom sensor box 7 through a first connecting pipe 10. The front control box 9 fixedly connected to the top of the front side of the sedimentation tank 1 can conveniently and centrally control and monitor the Hall sensors 15 in the front sensor box 6 and the bottom sensor box 7, making the control system of the equipment more centralized and convenient for operation and maintenance. At the same time, the front control box 9 is connected to the front sensor box 6 and the bottom sensor box 7 through the first connecting pipe 10, ensuring the stable transmission of the control signal. The connection method is simple and reliable, which not only protects the transmission line, but also facilitates future maintenance and replacement work.
[0039] See also Figure 1 , Figure 2 and Figure 3 A rear control box 11 is fixedly connected to the top of the rear side of the sedimentation tank 1, and the rear control box 11 is connected to the rear sensor box 8 through a first connecting pipe 10. By fixedly connecting the rear control box 11 to the top of the rear side of the sedimentation tank 1, centralized control and monitoring of the Hall sensor 15 in the rear sensor box 8 can be achieved, making the position detection of the scraper 2 on the rear side of the sedimentation tank 1 more convenient and efficient. At the same time, the rear control box 11 is connected to the rear sensor box 8 through the first connecting pipe 10, which can ensure the stable transmission of control signals and data, improve the reliability and response speed of the entire limit device, and make the maintenance of the equipment easier.
[0040] See also Figure 1 , Figure 2 and Figure 3A trigger rod 13 is fixedly connected to the top of the scraper 2. By fixing the trigger rod 13 on the top of the scraper 2, a physical trigger mechanism is provided for the scraper. When the scraper runs to a specific position, it interacts with subsequent equipment to achieve precise control of the start and stop of the scraper 2. At the same time, the setting of the trigger rod 13 increases the operability and functional diversity of the scraper 2. It can be used to trigger various actions, such as starting, stopping, turning, etc., making the movement of the scraper more flexible and controllable. This design not only improves the working efficiency of the scraper, but also enhances its ability to adapt to different working environments and tasks.
[0041] See also Figure 1 , Figure 2 and Figure 3 A limit switch 12 is arranged on one side of the front control box 9. There are two limit switches 12, and a pull rope 16 is connected between the two limit switches 12. By arranging two limit switches 12 on one side of the front control box 9 and connecting the pull rope 16 between the two limit switches 12, a simple and effective physical limit mechanism is provided. When the scraper truck 2 moves to a predetermined position, the trigger rod 13 touches the pull rope 16, thereby triggering the limit switch 12 to stop the scraper truck 2. At the same time, the combination of the limit switch 12 and the pull rope 16 is low-cost, and the mechanical limit method provides a trigger backup, which provides additional protection for the safe operation of the scraper truck 2.
[0042] The implementation principle of the utility model is: first, when it is necessary to start, the scraper truck 2 moves, and when the scraper truck 2 moves to the bottom sensor box 7, the lower magnet 3 triggers the Hall sensor 15, and the front control box 9 starts timing. When the trigger rod 13 touches the pull rope 16, it drives the limit switch 12 to act, and the scraper truck 2 starts to return. When the Hall sensor 15 inside the front sensor box 6 senses the front magnet 4 or the timing times out, it triggers an alarm, prompting the scraper truck 2 to stop moving, and transmits the information that the limit switch 12 is damaged to the control center. When the Hall sensor 15 in the rear sensor box 8 senses the rear magnet 5, it sends a signal to stop the scraper truck 2 and complete the complete scraping operation. Embodiment 2:
[0043] See also Figure 4The front control box 9 is connected to the front sensor box 6 and the bottom sensor box 7 through the second connecting tube 14, and the rear control box 11 is connected to the rear sensor box 8 through the second connecting tube 14. The front control box 9 is connected to the front sensor box 6 and the bottom sensor box 7 through the second connecting tube 14, and the rear control box 11 is connected to the rear sensor box 8, thereby ensuring a stable connection between the control system and the sensor. The second connecting tube 14 is used as a protective and fixing structure for the transmission line, which can effectively prevent the line from being damaged or loosened, thereby improving the stability and reliability of the entire system. At the same time, the use of the second connecting tube 14 also facilitates future maintenance and overhaul work. If the sensor or control box needs to be replaced or inspected, the relevant components can be easily removed through the connecting tube without large-scale disassembly of the entire system.
[0044] See also Figure 4 The inner walls on both sides of the second connecting tube 14 are fixedly connected with slideways 141, and a sliding trolley 142 is slidably connected between the two slideways 141. By fixing the slideways 141 on the inner walls on both sides of the second connecting tube 14, a stable sliding track is provided for the sliding trolley 142, so that the sliding trolley 142 can move smoothly on the slideways 141, which provides convenience for subsequent maintenance and inspection work. At the same time, the introduction of the sliding trolley 142 increases the flexibility and maintainability of the equipment. When the sensor needs to be inspected or replaced, the sliding trolley 142 can be easily slid to a suitable position for maintenance operations.
[0045] See also Figure 4 A groove 143 is provided inside the sliding trolley 142, and a buckle 144 is provided inside the groove 143. By providing the groove 143 inside the sliding trolley 142, a stable installation space is provided for the Hall sensor 15, which can ensure the stability and accuracy of the sensor during installation and use. At the same time, the buckle 144 provided inside the groove 143 can further fix the Hall sensor 15 to prevent it from moving or falling off during use. The design of the buckle 144 not only improves the stability of the sensor, but also makes the replacement and installation of the sensor more convenient and quick.
[0046] See also Figure 4 A rubber rod 145 is fixedly connected to one side of the sliding trolley 142. By fixing the rubber rod 145 on one side of the sliding trolley 142, a convenient pushing point is provided for the operator. The soft material and suitable length design of the rubber rod 145 enable the operator to easily push the sliding trolley 142 to move on the slide 141, thereby improving the convenience and efficiency of the operation. At the same time, the rubber rod 145 also has a certain buffering effect, which can reduce the impact and noise generated during the pushing process, making the entire operation process smoother and quieter.
[0047] The implementation principle of the utility model is: first, when it is found that the Hall sensor 15 is damaged, the rubber rod 145 is pulled to make the sliding trolley 142 slide out along the second connecting tube 14, and then the Hall sensor 15 inside the groove 143 is taken out, and a new Hall sensor 15 is put into the groove 143 and clamped by the buckle 144, and then the sliding trolley 142 is put back into the second connecting tube 14, and the rubber rod 145 is pushed to reset the Hall sensor 15, so that it is easier to repair and replace the Hall sensor 15.
[0048] Parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art, and will not be described in detail here.
[0049] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.
Claims
1. A limit device for an underwater scraper, characterized in that: The invention comprises a sedimentation tank (1), wherein a scraper truck (2) is arranged inside the sedimentation tank (1), a lower magnet (3) is fixedly connected to the bottom of the scraper truck (2), a front magnet (4) and a rear magnet (5) are fixedly connected to the front and rear sides of the scraper truck (2), a front sensor box (6) is fixedly connected to the front side of the sedimentation tank (1), a bottom sensor box (7) is fixedly connected to the bottom of the sedimentation tank (1), and a rear sensor box (8) is fixedly connected to the rear side of the sedimentation tank (1).
2. The underwater scraper limiting device according to claim 1 is characterized in that: Hall sensors (15) are arranged inside the front sensor box (6), the bottom sensor box (7) and the rear sensor box (8).
3. The underwater scraper limiting device according to claim 1 is characterized in that: A front control box (9) is fixedly connected to the top of the front side of the sedimentation tank (1); the front control box (9) is connected to the front sensor box (6) and the bottom sensor box (7) via a first connecting pipe (10).
4. The underwater scraper limiting device according to claim 3 is characterized in that: A rear control box (11) is fixedly connected to the top of the rear side of the sedimentation tank (1), and the rear control box (11) is connected to the rear sensor box (8) via a first connecting pipe (10).
5. The underwater scraper limiting device according to claim 1 is characterized in that: A trigger rod (13) is fixedly connected to the top of the mud scraper (2).
6. The underwater scraper limiting device according to claim 3 is characterized in that: A limit switch (12) is provided on one side of the front control box (9), two limit switches (12) are provided, and a pull rope (16) is connected between the two limit switches (12).
7. The underwater scraper limiting device according to claim 4 is characterized in that: The front control box (9) is connected to the front sensor box (6) and the bottom sensor box (7) via a second connecting pipe (14), and the rear control box (11) is connected to the rear sensor box (8) via a second connecting pipe (14).
8. The underwater scraper limiting device according to claim 7 is characterized in that: Slideways (141) are fixedly connected to the inner walls on both sides of the second connecting pipe (14), and a sliding trolley (142) is slidably connected between the two slideways (141).
9. The underwater scraper limiting device according to claim 8, characterized in that: A groove (143) is provided inside the sliding trolley (142), and a buckle (144) is provided inside the groove (143).
10. The underwater scraper limiting device according to claim 8, characterized in that: A rubber rod (145) is fixedly connected to one side of the sliding trolley (142).