A movable rail type grid cleaner grab lifting and spraying device
By employing rolling contact and counterweights in the moving-rail bar screen cleaner, combined with spray lubrication and brush cleaning structure, the problems of high sliding friction resistance and poor grab sliding are solved, achieving stable movement of the sliding sleeve and effective cleaning of the filter screen.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU KAIYAMEI MASCH MFG CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-06-09
AI Technical Summary
In existing moving-rail bar screens, the sliding contact between the swing rail and the grab bucket sleeve is uneven, resulting in high frictional resistance or poor sliding, and the offset center of gravity of the grab bucket causes interference and collision problems.
Rolling fit is used instead of sliding fit, and counterweights are set on the sliding sleeve. The slide rail is lubricated by a spray device, and impurities are cleaned by a filter screen and brush structure to reduce frictional resistance and ensure sliding stability.
It effectively reduces frictional resistance, avoids poor sliding of the grab bucket and interference collisions, ensures stable movement of the sliding sleeve and cleanliness of the filter screen, and improves equipment operating efficiency.
Smart Images
Figure CN224331718U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of bar screen cleaning machines, specifically a moving rail type bar screen cleaning machine grab bucket lifting and spraying device. Background Technology
[0002] A moving-rail bar screen is a water treatment device primarily used for the continuous, automatic interception and removal of debris of various shapes from fluids. It typically consists of a grab bucket assembly, a trolley, and guide rails. The grab bucket assembly comprises two grab buckets connected by a hinge at the center and linked at the top by a hydraulic cylinder. The opening and closing of the grab buckets is achieved through the extension and retraction of the cylinder.
[0003] A bar screen cleaning machine is disclosed in utility model patent with patent authorization announcement number CN203200047U. It includes a frame, rake teeth and a bar screen, and a rubber plate is installed in the gap between the frame and the bar screen on both sides, facing the water.
[0004] However, existing moving-rail bar screens are generally installed at an angle of 60°-80°, and the swing rail is also tilted during operation. This leads to uneven contact between the swing rail and the grab bucket sleeve due to the offset of the grab bucket's center of gravity. Furthermore, the torque generated by the offset of the grab bucket's center of gravity relative to the swing rail is the main reason for the grab bucket's poor sliding motion along the swing rail. If the sliding clearance between the swing rail and the grab bucket sleeve is too large, it can easily cause interference and collision between the grab bucket teeth and the bar screen when the rake is closed; if the sliding clearance is too small, the frictional resistance is greater, making it even more likely that the grab bucket will not slide smoothly along the swing rail. Utility Model Content
[0005] The purpose of this invention is to provide a lifting and spraying device for the grab bucket of a moving-rail type bar screen cleaner. This solves the problem that existing moving-rail type bar screen cleaners typically have their bar screens installed at an angle of 60°-80°, and the swing rail is also tilted during operation. This leads to uneven contact between the swing rail and the grab bucket sleeve due to the offset of the grab bucket's center of gravity. Furthermore, the torque generated by the offset of the grab bucket's center of gravity relative to the swing rail causes the grab bucket to slide poorly along the swing rail. If the sliding clearance between the swing rail and the grab bucket sleeve is too large, it easily causes interference and collision between the grab bucket teeth and the bar screen when the rake is closed; if the sliding clearance is too small, the frictional resistance is greater, further contributing to the problem of the grab bucket sliding poorly along the swing rail.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a moving-rail type bar screen grab bucket lifting spray device, comprising a screen well body, a bar screen is provided on the inner wall of the screen well body, a moving-rail guide groove is provided on the bottom inner side of the screen well body, an upper frame is provided at the upper end of the screen well body, a swing slide rail is installed on the upper frame through a rotating fulcrum, the swing slide rail contacts the moving-rail guide groove, a slag rake is provided on the upper frame, a sliding sleeve is provided on the outer side of the swing slide rail, a grab bucket is provided on the end face of the sliding sleeve, a roller assembly is provided on the sliding sleeve, the rollers of the roller assembly contact the swing slide rail, and a counterweight is provided on the end face of the sliding sleeve.
[0007] Preferably, the bar screen is provided with a bar screen wall side fixing block, which is fixedly connected to the sludge removal well tank body. By setting the bar screen wall side fixing block, the bar screen and the sludge removal well tank body can be fixed.
[0008] Preferably, two counterweights are provided, which are evenly distributed on the sliding sleeve. By providing counterweights, the sliding sleeve can be used to balance the weight and ensure the stability of the sliding sleeve's movement.
[0009] Preferably, a spraying mechanism is provided on the sludge removal well body. The spraying mechanism includes a suction pump, which is fixedly installed at the upper end of the sludge removal well body. A suction pipe is fixedly connected to the lower side of the suction pump and is submerged in the sludge removal well body. A spray pipe is fixedly connected to the left side of the suction pump, with its vertical part submerged in the sludge removal well body. A spray head is fixedly connected to the vertical part of the spray pipe. A filter screen is fixedly connected to the lower end of the suction pipe. A submersible motor is fixedly installed on the right side of the suction pipe, and the output shaft of the submersible motor is fixed to the outside. A fixed plate is fitted onto the submersible motor. A guide rod is fixedly connected to the lower end of the fixed plate. A movable plate is slidably fitted onto the outer side of the guide rod. The movable plate is slidably connected to the output shaft of the submersible motor. A spring is provided on the outer side of the guide rod. A driven rod is fixedly connected to the left end of the movable plate. Brush bristles are fixedly connected to the upper side of the driven rod. The brush bristles contact the filter screen. Through the filter screen, impurities in the water can be filtered out. Under the action of the submersible motor, the driven rod can drive the brush bristles to slide along the surface of the filter screen to clean the impurities attached to the filter screen.
[0010] Preferably, multiple spray heads are provided, and the multiple spray heads are evenly distributed on the spray pipe. By setting the spray heads, water can be sprayed, thereby spraying and lubricating the swing slide rail.
[0011] Preferably, one end of the spring is welded to the movable plate, and the other end of the spring is welded to the fixed plate. The movable plate can be connected and used by means of the spring.
[0012] Preferably, multiple bristles are provided, and the multiple bristles are evenly distributed on the driven rod. By providing the bristles, impurities attached to the filter screen can be cleaned.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. This utility model reduces the frictional resistance coefficient by changing the sliding fit between the swing slide rail and the sliding sleeve to a rolling fit. A counterweight is set on the symmetrical plane of the grab bucket to reduce the torque generated by the sliding sleeve on the swing slide rail caused by the center of gravity of the grab bucket being offset on the swing slide rail, thereby further reducing the frictional resistance. In addition, with the water pump, spray head and other structures, water in the channel is consistently drawn and sprayed onto the swing slide rail during the operation of the moving rail bar screen cleaner, thereby further reducing the friction problem caused by the roller of the sliding sleeve on the swing slide rail.
[0015] 2. This utility model, through the setting of the filter screen, can filter out impurities in the water, avoiding damage to subsequent pump bodies, pipelines and other structural components. With the submersible motor, driven rod and other structures, the bristles can slide along the surface of the filter screen to clean the impurities attached to the filter screen, so as to ensure the flow of the filter screen. With the spring, guide rod and other structures, the bristles can always be in contact with the filter screen to ensure a good cleaning effect. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 For the present utility model Figure 1 3D view of the grab bucket;
[0018] Figure 3 For the present utility model Figure 2 Top view;
[0019] Figure 4 For the present utility model Figure 1 Enlarged view of the suction tube.
[0020] In the diagram: 1. Sewage treatment well body; 2. Bar screen; 3. Moving rail guide groove; 4. Upper frame; 5. Swinging slide rail; 6. Bar screen wall side fixing block; 7. Slag rake; 8. Sliding sleeve; 9. Grab bucket; 10. Roller assembly; 11. Counterweight block; 12. Spraying mechanism; 120. Suction pump; 121. Suction pipe; 122. Spray pipe; 123. Spray head; 124. Filter screen; 125. Submersible motor; 126. Fixed plate; 127. Guide rod; 128. Moving plate; 129. Spring; 130. Driven rod; 131. Brush bristles. Detailed Implementation
[0021] 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.
[0022] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 A moving-rail type bar screen grab bucket lifting spray device includes a screen well 1, a bar screen 2 is provided on the inner wall of the screen well 1, a moving-rail guide groove 3 is provided on the bottom inner side of the screen well 1, an upper frame 4 is provided at the upper end of the screen well 1, a swing slide rail 5 is installed on the upper frame 4 through a rotating fulcrum, the swing slide rail 5 contacts the moving-rail guide groove 3, a slag rake 7 is provided on the upper frame 4, a sliding sleeve 8 is provided on the outer side of the swing slide rail 5, a grab bucket 9 is provided on the end face of the sliding sleeve 8, a roller assembly 10 is provided on the sliding sleeve 8, the rollers of the roller assembly 10 contact the swing slide rail 5, and a counterweight block 11 is provided on the end face of the sliding sleeve 8.
[0023] Please see Figure 1 , Figure 2 , Figure 3 The grid 2 is provided with a grid channel wall side fixing block 6, which is fixedly connected to the sewage treatment well tank 1. The grid 2 and the sewage treatment well tank 1 can be fixed by the setting of the grid channel wall side fixing block 6. There are two counterweight blocks 11, which are evenly distributed on the sliding sleeve 8. The sliding sleeve 8 can be used to counterweight the counterweight blocks 11 to ensure the movement stability of the sliding sleeve 8.
[0024] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4A spraying mechanism 12 is installed on the sludge removal well tank 1. The spraying mechanism 12 includes a suction pump 120. The suction pump 120 is fixedly installed at the upper end of the sludge removal well tank 1. A suction pipe 121 is fixedly connected to the lower side of the suction pump 120 and is submerged in the sludge removal well tank 1. A spray pipe 122 is fixedly connected to the left side of the suction pump 120. The vertical part of the spray pipe 122 is submerged in the sludge removal well tank 1 and a spray head 123 is fixedly connected to the vertical part of the spray pipe 122. A filter screen 124 is fixedly connected to the lower end of the suction pipe 121. A submersible motor 125 is fixedly installed on the right side of the suction pipe 121. A fixed plate 126 is fixedly sleeved on the outside of the output shaft of the submersible motor 125. A guide rod 127 is fixedly connected to the lower end of the fixed plate 126. A movable plate 128 is slidably sleeved on the outer side of the guide rod 127. The movable plate 128 is slidably connected to the output shaft of the submersible motor 125. A spring 129 is provided on the outer side of the guide rod 127. A driven rod 130 is fixedly connected to the left end of the movable plate 128. A brush bristle 131 is fixedly connected to the upper side of the driven rod 130. The brush bristle 131 contacts the filter screen 124. Through the setting of the filter screen 124, impurities in the water can be filtered out. Under the action of the submersible motor 125, the driven rod 130 can drive the brush bristle 131 to slide along the surface of the filter screen 124 to clean the impurities attached to the filter screen 124.
[0025] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 Multiple spray heads 123 are provided, and the multiple spray heads 123 are evenly distributed on the spray pipe 122. Through the setting of the spray heads 123, water can be sprayed, thereby spraying and lubricating the swing slide rail 5. One end of the spring 129 is welded to the moving plate 128, and the other end of the spring 129 is welded to the fixed plate 126. Through the setting of the spring 129, the moving plate 128 can be connected and used. Multiple bristles 131 are provided, and the multiple bristles 131 are evenly distributed on the driven rod 130. Through the setting of the bristles 131, the impurities attached to the filter screen 124 can be cleaned.
[0026] The specific implementation process of this utility model is as follows: When in use, the upper frame 4 can be used to pull the sliding sleeve 8 along the outside of the swing slide rail 5 through the winding assembly and the winding action of the wire rope, so that the roller of the roller assembly 10 rolls along the surface of the swing slide rail 5 to reduce the sliding friction of the sliding sleeve 8. Under the action of the counterweight 11, the sliding sleeve 8 can be used for counterweighting to avoid the problem of the grab bucket 9 being biased.
[0027] When the sliding sleeve 8 moves, with the cooperation of the suction pump 120, suction pipe 121, and spray pipe 122, the spray head 123 can spray water and lubricate the sliding sleeve 8 and the swing slide rail 5 to reduce the sliding friction of the sliding sleeve 8. Under the action of the filter screen 124, impurities in the water can be filtered out to avoid affecting the suction pump 120, spray head 123, etc.
[0028] The submersible motor 125 is started to drive the output shaft to rotate, which in turn drives the fixed plate 126 to rotate, which in turn drives the guide rod 127 to rotate, which in turn drives the moving plate 128 to rotate, which in turn drives the driven rod 130 to rotate, so that the bristles 131 slide along the surface of the filter screen 124 to clean the impurities attached to the filter screen 124 and ensure the flow of the filter screen 124. Under the deformation of the spring 129, the moving plate 128 can be pulled to move the driven rod 130 upward, so that the bristles 131 come into contact with the filter screen 124 and ensure that the bristles 131 have a good cleaning effect.
[0029] 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 moving-rail type bar screen grab bucket lifting and spraying device, comprising a screen well (1), characterized in that: The inner wall of the sludge removal well (1) is provided with a grid (2), the bottom of the inner side of the sludge removal well (1) is provided with a moving rail guide groove (3), the upper end of the sludge removal well (1) is provided with an upper frame (4), the upper frame (4) is equipped with a swing slide rail (5) through a rotating fulcrum, the swing slide rail (5) is in contact with the moving rail guide groove (3), the upper frame (4) is provided with a slag rake (7), the outer side of the swing slide rail (5) is provided with a sliding sleeve (8), the end face of the sliding sleeve (8) is provided with a grab bucket (9), the sliding sleeve (8) is provided with a roller assembly (10), the rollers of the roller assembly (10) are in contact with the swing slide rail (5), and the end face of the sliding sleeve (8) is provided with a counterweight (11).
2. The moving-rail type bar screen grab bucket lifting and spraying device according to claim 1, characterized in that: The grid (2) is provided with a grid channel wall side fixing block (6), which is fixedly connected to the sewage well pool (1).
3. The moving-rail type bar screen grab bucket lifting and spraying device according to claim 1, characterized in that: There are two counterweights (11), and the two counterweights (11) are evenly distributed on the sliding sleeve (8).
4. The moving-rail type bar screen grab bucket lifting and spraying device according to claim 1, characterized in that: A spraying mechanism (12) is provided on the sludge removal well tank (1). The spraying mechanism (12) includes a suction pump (120). The suction pump (120) is fixedly installed at the upper end of the sludge removal well tank (1). A suction pipe (121) is fixedly connected to the lower side of the suction pump (120). The suction pipe (121) is submerged in the sludge removal well tank (1). A spray pipe (122) is fixedly connected to the left side of the suction pump (120). The vertical part of the spray pipe (122) is submerged in the sludge removal well tank (1). A spray head (123) is fixedly connected to the vertical part of the spray pipe (122). A filter screen (124) is fixedly connected to the lower end of the suction pipe (121). A submersible motor (125) is fixedly installed on the right side of 21). A fixed plate (126) is fixedly sleeved on the outside of the output shaft of the submersible motor (125). A guide rod (127) is fixedly connected to the lower end of the fixed plate (126). A movable plate (128) is slidably sleeved on the outside of the guide rod (127). The movable plate (128) is slidably connected to the output shaft of the submersible motor (125). A spring (129) is provided on the outside of the guide rod (127). A driven rod (130) is fixedly connected to the left end of the movable plate (128). A brush bristle (131) is fixedly connected to the upper side of the driven rod (130). The brush bristle (131) is in contact with the filter screen (124).
5. The moving-rail type bar screen grab bucket lifting and spraying device according to claim 4, characterized in that: Multiple spray heads (123) are provided, and the multiple spray heads (123) are evenly distributed on the spray pipe (122).
6. The moving-rail type bar screen grab bucket lifting and spraying device according to claim 4, characterized in that: One end of the spring (129) is welded to the movable plate (128), and the other end of the spring (129) is welded to the fixed plate (126).
7. The moving-rail type bar screen grab bucket lifting and spraying device according to claim 4, characterized in that: The brush bristles (131) are provided in multiple quantities, and the multiple brush bristles (131) are evenly distributed on the driven rod (130).