Reciprocating sludge scraper for sedimentation tank

Abstract

The invention relates to the technical field of sludge treatment, in particular to a sedimentation tank reciprocating type sludge scraper which comprises a concave bottom frame, an open groove, a first fixing frame and a second fixing frame, the open groove is formed in the center of the interior of the concave bottom frame, and the first fixing frame and the second fixing frame are formed in the positions, located on the two sides of the open groove, of the top face of the concave bottom frame respectively. A limiting frame is fixedly installed at an opening in one side of the open groove, and a pushing mechanism is arranged on the top face, located on one side of the first fixing frame, of the concave bottom frame. According to the invention, on the basis of reducing the sludge blocking risk of operating parts of the device, the conditions of sludge detention in the pond and blockage of a discharge port are reduced through a cleaning mode of intermittent lifting and back scraping, and meanwhile, the pushed sludge is intermittently cut, so that sludge blockage is further reduced, and subsequent collection is facilitated; and the operation efficiency of the sludge scraper is comprehensively improved.

Description

Technical Field

[0001] The invention relates to the technical field of sludge treatment, in particular to a reciprocating sludge scraper for a sedimentation tank. Background Art

[0002] The scraper is the main equipment for sewage sludge treatment and is widely used in urban and rural environmental protection sewage sludge treatment industry. A sludge trough is provided at the bottom of the scraper. The sewage sludge enters the sedimentation tank and settles based on the gravity of the solid particles or is concentrated using drugs, so that the upper part is clarified water and the lower part is settled sludge slurry. The scraper discharges the settled sludge slurry from the sedimentation tank through the sludge trough and performs the next step of treatment according to the sewage sludge treatment process. A running scraper plate is also installed at the bottom of the scraper. The settled sludge slurry is pushed to the sludge trough and discharged from the discharge hole through the operation of the scraper plate, and the clarified water is discharged from the upper part of the sedimentation tank to achieve the purpose of separating sludge and clarified water.

[0003] The existing patent CN2153877609U discloses a hydraulic reciprocating mud scraper to solve the problem that after long-term use, a large amount of mud is easily attached to the outer wall of the scraper of the current hydraulic reciprocating mud scraper. In order to prevent the attached mud from corroding the scraper, the scraper needs to be cleaned regularly manually, which results in a heavy workload. However, the scraper in the above-mentioned comparative patent belongs to a conventional scraper mechanism, which is directly settled in the sludge during operation and is driven by a triangular arm fixing frame, a hydraulic drive assembly, etc. This kind of structural setting is very likely to cause sludge to accumulate inside the device and affect the movement and operation of the scraper; At the same time, although the above-mentioned comparative patent can scrape the sludge in the sedimentation tank and remove the sludge on the surface of the scraper, the discharge port is easily blocked due to the continuous accumulation of sludge when the sludge is scraped, and in the process of reciprocating motion, since the linear moving height of the scraper remains unchanged, the sludge that is not scraped off for the first time is easily pushed back to the reverse side of the scraper, forming a scraping dead angle and reducing the sludge cleaning efficiency; In view of the technical defects in this aspect, a solution is now proposed. Summary of the invention

[0004] The purpose of the present invention is to provide a reciprocating sludge scraper for a sedimentation tank to solve the technical defects proposed by the background technology.

[0005] The object of the present invention can be achieved by the following technical scheme: A reciprocating sludge scraper for a sedimentation tank comprises a concave bottom frame, an open groove, a fixed frame 1 and a fixed frame 2, wherein the open groove is arranged at the inner center of the concave bottom frame, and the fixed frame 1 and the fixed frame 2 are respectively arranged on the top surface of the concave bottom frame at two sides of the open groove; A limited position frame is fixedly installed at the opening of one side of the opening slot, and a pushing mechanism is arranged on the top surface of the concave bottom frame at a position on one side of the fixed frame; A groove is provided at the center of the top surface of the fixing frame 1, and a T-shaped slide is slidably connected inside the groove. A side surface of the fixing frame 1 close to the fixing frame 2 is provided with a plurality of groups of inclined grooves 1 at equal distances. The first and the second ends of each group of inclined grooves 1 are respectively provided with a transverse groove 1 and a transverse groove 2, and a plurality of teeth are provided at equal distances on the inner wall of the bottom of the transverse groove 1. A plurality of groups of rotating rods are fixedly installed at equal distances on one side of the T-shaped slide plate, one end of each group of rotating rods extends to the outside of the corresponding inclined groove 1 and is fixedly installed with a wedge-shaped scraper, a limiting gear 1 is fixedly installed on the middle section of the outside of the rotating rod, and the limiting gear 1 is slidably connected to the inside of the inclined groove 1, and a rack 1 is fixedly installed at the center of one side of the fixed frame 1 away from the fixed frame 2.

[0006] Furthermore, a cutting plate is arranged inside the limit frame, the top of the cutting plate extends to the outside of the limit frame, and an inclined groove 2 is arranged inside the cutting plate at the upper end of the limit frame, and a plurality of groups of tooth grooves are arranged at equal distances on the bottom surface of the cutting plate.

[0007] Furthermore, the pushing mechanism includes a motor, which is fixedly mounted on the top surface of the concave bottom frame through a mounting frame and is located on one side of the fixed frame, and a double-axis cylinder is fixedly mounted on the output shaft at the front end of the motor, and a triangular stop block is fixedly mounted on one side of the double-axis cylinder at the rear end bearing.

[0008] Furthermore, the pushing mechanism also includes a fan-shaped tooth plate, which is meshed with one side of rack one, and a hinge rod is fixedly installed on the side of the fan-shaped tooth plate away from rack one, the bottom center of the hinge rod is hinged to the top surface of the concave bottom frame, and a circular shaft is fixedly installed on the bottom surface of the hinge rod and at one end away from the fan-shaped tooth plate, and the circular shaft extends from the top surface of the double-axis cylinder and is located on one side of the triangular stop block.

[0009] Furthermore, a half gear is fixedly installed on the end of the double-axis cylinder away from the motor through a long rod, and a sliding frame with a circular structure is sleeved on the outside of the half gear, and a plurality of groups of teeth are arranged on the inner wall of the bottom of the sliding frame at equal distances, a sliding block is fixedly installed at the center of the bottom of the sliding frame, and the sliding block is slidably connected to the inside of a sliding groove arranged on one side of the top surface of the concave bottom frame, a spring damping shock absorber is fixedly installed between the sliding block and the inner wall of one side of the sliding groove, a push frame with a concave structure is fixedly installed at the center of one side of the sliding frame, and convex sliding shafts are fixedly installed on the inner walls of the front and rear ends of the push frame and at the open end, and two groups of the sliding shafts are respectively slidably connected to the lower end of the inside of the second inclined groove.

[0010] Furthermore, the top surface height of the second fixing frame exceeds the top surface height of the first fixing frame by 8 cm, and an inner groove is provided at the top of one side of the second fixing frame close to the first fixing frame, and a cleaning piece is provided inside the inner groove.

[0011] Furthermore, the cleaning member includes a guide rod, which is fixedly installed inside the inner groove, and a plurality of groups of sliding rods are equidistantly sleeved on the outside of the guide rod, one end of the sliding rod extends to the notch of the inner groove and is rotatably connected to a roller wiping shaft, and the roller wiping shaft is located at one end of the sliding rod and fixedly sleeved with a limiting gear 2, and the bottom of the plurality of groups of limiting gears 2 are meshed with a rack 2 fixedly installed on the inner wall of the bottom of the inner groove, and the roller wiping shaft is located at the rear end of the top of the wedge-shaped scraper.

[0012] Furthermore, a plurality of sets of sleeves are fixedly sleeved at equal distances on the outside of the guide rod, and the slide rod is arranged between two sets of sleeves. A spring coil is wound around the outside of the guide rod between the slide rod and one of the sets of sleeves.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention is to cooperate with a wedge-shaped scraper assembly and a pushing mechanism, and a motor drives the double-axis cylinder and the triangular block to rotate synchronously. The inclined surface of the triangular block continuously presses the circular axis, thereby forcing the fan-shaped tooth plate to deflect, and the fan-shaped tooth plate pulls the wedge-shaped scraper to move synchronously. The rotating rod slides from the inside of the inclined groove 1 to the inside of the horizontal groove 2, forcing the wedge-shaped scraper to tilt and slide down, and scrape the sludge on the bottom surface, and the sludge is scraped to the bottom of the wedge-shaped scraper in the adjacent area; When the circular shaft passes over the inclined surface of the triangular block and loses the pressure, the sector tooth plate is reset and pulls the T-shaped slide plate and the wedge-shaped scraper to reset and move, and the limit gear 1 slides from the inside of the transverse groove 2 to the inside of the inclined groove 1, forcing the wedge-shaped scraper to rise and move away from the bottom of the sedimentation tank, and the limit gear 1 slides to the inside of the transverse groove 1 and meshes with the teeth to realize the rotation of the rotating rod and the wedge-shaped scraper; In this way, the sludge is lifted and scraped back intermittently, which not only effectively removes the sludge on the bottom of the pool and reduces the situation of mud clogging due to the appearance of scratching dead corners, but also the segmented sludge cutting can reduce the blockage of the sludge discharge port. At the same time, compared with the traditional scraper set inside the sedimentation tank, the device can also reduce the situation of sludge blocking the internal structure of the scraper and reduce the impact on the operation of the device; 2. The present invention also provides a cutting plate assembly, which cooperates with the pushing structure, and the half gear rotates and meshes with the slide frame to move the slide frame and the push frame. The two sets of sliding shafts slide linearly along the inside of the second chute and press against the inner wall of the bottom of the second chute to force the cutting plate to sink downward until the tooth groove at the bottom of the cutting plate extends to the lower end of the limit frame and crushes the mud blocks pushed down, thereby reducing the blockage of the mud blocks at the discharge port and accelerating the discharge speed of the mud blocks; When the tooth block surface of the half gear passes over the tooth groove, the sliding frame loses the meshing transmission, and the traction push frame moves in the opposite direction, and the sliding shaft moves in the opposite direction along the inside of the second inclined groove, forcing the cutting plate to rise and return to its original position and away from the discharge port to reduce the obstruction to the sludge discharge. Repeating the operation can realize the repeated cutting of the discharged sludge by the cutting plate. 3. The cleaning member is arranged to cooperate with the wedge-shaped scraper. The wedge-shaped scraper is turned over and continuously presses the roller wiping shaft at the adjacent position. The roller wiping shaft pulls the sliding rod and the limit gear 2 to move synchronously. The limit gear is meshed with the rack 2 during the movement to realize the self-rotation of the limit gear and the roller wiping shaft. The self-rotation translation of the roller wiping shaft adapts to the cleaning of the wedge-shaped scraper in the rotating state, so as to assist in removing the sludge adhered to the surface of the wedge-shaped scraper, so as to avoid the accumulation of sludge at the scraping end at the bottom of the wedge-shaped scraper, which affects the scratching effect of the sludge at the bottom of the sedimentation tank and causes its own corrosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 A top view of the overall structure of the present invention; Figure 3 It is a schematic diagram of the unfolded plane of the biaxial cylinder of the present invention; Figure 4 A half-section view of the concave bottom frame of the present invention; Figure 5 It is a side sectional view of the combination of the concave bottom frame and the fixed frame of the present invention; Figure 6 It is a partial structural schematic diagram of the combination of the concave bottom frame and the pushing mechanism of the present invention; Figure 7 It is a side sectional view of the combination of the concave bottom frame, the limit frame and the pushing mechanism of the present invention; Figure 8 It is a three-dimensional schematic diagram of the combination of the second fixing frame and the cleaning member of the present invention.

[0016] In the figure: 1, concave bottom frame; 2, opening groove; 3, fixed frame 1; 301, groove; 302, T-shaped slide plate; 303, inclined groove 1; 304, transverse groove 1; 305, transverse groove 2; 306, rotating rod; 307, wedge-shaped scraper; 308, limit gear 1; 309, rack 1; 4, fixed frame 2; 401, inner groove; 5, limit frame; 501, cutting plate; 502, inclined groove 2; 6, pushing mechanism; 61, motor ; 62. Double-axis cylinder; 63. Triangular block; 64. Fan-shaped tooth plate; 65. Hinge rod; 66. Round shaft; 67. Half gear; 68. Slide frame; 69. Sliding block; 610. Slide groove; 611. Spring damping shock absorber; 612. Push frame; 613. Sliding shaft; 7. Cleaning part; 71. Guide rod; 72. Sliding rod; 73. Roller wiping shaft; 74. Limiting gear 2; 75. Rack 2; 76. Sleeve; 77. Spring assembly ring. DETAILED DESCRIPTION

[0017] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Example 1: Please refer to Figure 1 - Figure 8 As shown, a reciprocating sludge scraper for a sedimentation tank comprises a concave bottom frame 1, an opening groove 2, a fixing frame 1 3 and a fixing frame 2 4, the opening groove 2 is arranged at the inner center of the concave bottom frame 1, the fixing frame 1 3 and the fixing frame 2 4 are respectively arranged on the top surface of the concave bottom frame 1 and located at both sides of the opening groove 2, and a limiting frame 5 is fixedly installed at the opening of one side of the opening groove 2; A groove 301 is provided at the center of the top surface of the fixing frame 1 3, and a T-shaped slide plate 302 is slidably connected inside the groove 301. A plurality of groups of inclined grooves 1 303 are equidistantly provided on a side surface of the fixing frame 1 3 close to the fixing frame 2 4. A transverse groove 1 304 and a transverse groove 2 305 are provided at the head and tail ends of each group of inclined grooves 1 303, respectively, and a plurality of teeth are equidistantly provided on the inner wall of the bottom of the transverse groove 1 304. A plurality of rotating rods 306 are fixedly installed at equal distances on one side of the T-shaped slide plate 302, one end of each rotating rod 306 extends to the outside of the corresponding inclined groove 1 303 and is fixedly installed with a wedge-shaped scraper 307, a limiting gear 1 308 is fixedly installed on the middle section of the outside of the rotating rod 306, and the limiting gear 1 308 is slidably connected to the inside of the inclined groove 1 303, a rack 1 309 is fixedly installed at the center of the side of the fixed frame 1 3 away from the fixed frame 2 4, firstly, the concave bottom frame 1 is sleeved on the top of the sedimentation tank, and a plurality of wedge-shaped scrapers 307 correspond to the bottom surface of the tank, and the limiting frame 5 at the end of the open groove 2 corresponds to the sludge discharge port of the sedimentation tank; A pushing mechanism 6 is arranged on the top surface of the concave bottom frame 1 and located on one side of the fixed frame 3. The pushing mechanism 6 includes a motor 61. The motor 61 is fixedly mounted on the top surface of the concave bottom frame 1 and located on one side of the fixed frame 3 through a mounting frame, and a double-axis cylinder 62 is fixedly mounted on the output shaft at the front end of the motor 61. A triangular stop block 63 is fixedly mounted on one side of the double-axis cylinder 62 and located at the rear end bearing. The pushing mechanism 6 also includes a fan-shaped tooth plate 64, which is meshed with one side of the rack 309, and a hinge rod 65 is fixedly installed on the side of the fan-shaped tooth plate 64 away from the rack 309, and the bottom center of the hinge rod 65 is hinged to the top surface of the concave bottom frame 1, and a round shaft 66 is fixedly installed on the bottom surface of the hinge rod 65 and away from the fan-shaped tooth plate 64. The round shaft 66 extends from the top surface of the double-axis cylinder 62 and is located on one side of the triangular stop block 63; The specific scraping process includes: first starting the motor 61, which drives the double-axis cylinder 62 to rotate clockwise, and the triangular block 63 rotates synchronously with the double-axis cylinder 62, and the inclined surface of one side of the triangular block 63 continuously presses the circular shaft 66, forcing the hinge rod 65 and the fan-shaped tooth plate 64 to deflect, and the fan-shaped tooth plate 64 pulls the rack 1 309, the T-shaped slide plate 302, the rotating rod 306 and the wedge-shaped scraper 307 to move synchronously, and the rotating rod 306 slides from the inside of the inclined groove 1 303 to the inside of the horizontal groove 2 305, forcing the wedge-shaped scraper 307 to tilt and slide down, and scrape the sludge on the bottom surface; The sludge scrapes to the bottom of the wedge-shaped scraper 307 in the adjacent area, and with the continuous rotation of the double-axis cylinder 62, the circular shaft 66 passes over the inclined surface of the triangular block 63 and loses the pressure. Under the flipping action of the hinge force, the hinge rod 65 and the fan-shaped tooth plate 64 are reset, and the fan-shaped tooth plate 64 pulls the T-shaped slide plate 302 and the wedge-shaped scraper 307 to reset and move. During this period, the limit gear 1 308 slides from the inside of the transverse groove 2 305 to the inside of the inclined groove 1 303, forcing the wedge-shaped scraper 307 to lift and move away from the bottom of the sedimentation tank. At the same time, the limit gear 1 308 slides to the inside of the transverse groove 1 304 and meshes with the teeth to realize the rotation of the rotating rod 306 and the wedge-shaped scraper 307. In this way, by intermittently lifting and scraping the sludge, not only can the sludge on the bottom of the pool be effectively removed and the mud blocks caused by scratching dead corners be reduced, but the segmented cutting of the sludge can also reduce the blockage of the sludge discharge port. At the same time, compared with the traditional scraper installed inside the sedimentation tank, the device can also reduce the sludge blocking the internal structure of the scraper and reduce the impact on the operation of the device.

[0019] Example 2: Please refer to Figure 6 - Figure 7 As shown, a cutting plate 501 is provided inside the limiting frame 5, the top of the cutting plate 501 extends to the outside of the limiting frame 5, and an inclined inclined groove 502 is provided inside the cutting plate 501 at the upper end of the limiting frame 5, and a plurality of groups of tooth grooves are provided at equal distances on the bottom surface of the cutting plate 501; A half gear 67 is fixedly installed at one end of the double-axis cylinder 62 away from the motor 61 through a long rod, and a slide frame 68 with a circular structure is sleeved on the outside of the half gear 67. A plurality of groups of teeth are arranged at equal distances on the inner wall at the bottom of the slide frame 68. A slider 69 is fixedly installed at the center of the bottom of the slide frame 68, and the slider 69 is slidably connected to the inside of a slide groove 610 arranged at one side of the top surface of the concave bottom frame 1. A spring damping shock absorber 611 is fixedly installed between the slider 69 and the inner wall of one side of the slide groove 610. A push frame 612 with a concave structure is fixedly installed at the center of one side of the slide frame 68, and convex sliding shafts 613 are fixedly installed on the inner walls of the front and rear ends of the push frame 612 and at the open end. Two groups of sliding shafts 613 are respectively slidably connected to the lower end of the inside of the second inclined groove 502; While the motor 61 drives the double-axis cylinder 62 to rotate, it also drives the half gear 67 to rotate synchronously, and the half gear 67 meshes with the teeth of the inner wall at the bottom of the slide frame 68 to realize the movement of the slide frame 68 and the push frame 612, the slider 69 moves along the inside of the slide groove 610, and causes the spring damping shock absorber 611 to be compressed, and the push frame 612 moves through the outside of the cutting plate 501, forcing the two sets of sliding shafts 613 to slide linearly along the inside of the second inclined groove 502, and the sliding shafts 613 press against the inner wall at the bottom of the second inclined groove 502 to force the cutting plate 501 to sink downward, until the tooth groove at the bottom of the cutting plate 501 extends to the lower end of the limit frame 5 and crushes the mud blocks pushed down, thereby reducing the blockage of mud blocks at the discharge port to speed up the discharge of mud blocks; It is worth noting that when the tooth block surface of the half gear 67 passes over the tooth groove, the sliding frame 68 loses the meshing transmission and is reset by the rebound force of the spring damping shock absorber 611, pulling the push frame 612 to move in the opposite direction. At the same time, the sliding shaft 613 moves in the opposite direction inside the inclined groove 502, forcing the cutting plate 501 to be lifted up and returned to its original position and away from the discharge port to reduce the obstruction to the sludge discharge. Repeating the operation can realize the repeated cutting of the discharged sludge by the cutting plate 501.

[0020] Example 3: Please refer to Figure 2 , Figure 5 - Figure 7 As shown, the top surface height of the fixing frame 2 4 exceeds the top surface height of the fixing frame 1 3 by 8 cm, and the fixing frame 2 4 is provided with an inner groove 401 at the top end near one side of the fixing frame 1 3, and a cleaning member 7 is provided inside the inner groove 401; The cleaning member 7 includes a guide rod 71, which is fixedly installed inside the inner groove 401, and a plurality of groups of slide rods 72 are sleeved at equal distances outside the guide rod 71, one end of the slide rod 72 extends to the notch of the inner groove 401 and is rotatably connected to a roller wiping shaft 73, and the roller wiping shaft 73 is located at one end of the slide rod 72 and is fixedly sleeved with a limited gear 2 74, and the bottoms of the plurality of groups of limited gear 2 74 are meshed with a rack 2 75 fixedly installed on the inner wall of the bottom of the inner groove 401; The roller wiping shaft 73 is located at the rear end of the top of the wedge-shaped scraper 307. A plurality of sleeves 76 are fixedly sleeved at equal distances on the outside of the guide rod 71, and the slide rod 72 is arranged between two sleeves 76. A spring coil 77 is wound between the slide rod 72 and one of the sleeves 76 on the outside of the guide rod 71. The roller wiping shaft 73 is pressed against the wedge-shaped scraper 307, and the roller wiping shaft 73 is pressed against the wedge-shaped scraper 307, so that the sliding bar 72 and the limiting gear 74 move synchronously, and the sliding bar 72 slides along the outside of the guide rod 71 and presses the spring ring 77 to form a compression state, and the limiting gear 74 meshes with the rack 75 during the movement to realize the self-rotation of the limiting gear 74 and the roller wiping shaft 73. The self-rotation translation of the roller wiping shaft 73 adapts to the cleaning of the wedge-shaped scraper 307 in the rotating state, so as to assist in removing the sludge adhered to the surface of the wedge-shaped scraper 307, so as to prevent the accumulation of sludge at the scraping end at the bottom of the wedge-shaped scraper 307, which affects the scraping effect of the sludge at the bottom of the sedimentation tank and causes its own corrosion. At the same time, the self-rotation of the roller wiping shaft 73 assists it in cleaning the sludge blocks adhered to the wedge-shaped scraper 307.

[0021] When the present invention is used, the concave bottom frame 1 is first sleeved on the top of the sedimentation tank, a plurality of groups of wedge-shaped scrapers 307 correspond to the bottom surface of the tank, and the limit frame 5 at the end of the open groove 2 corresponds to the sludge discharge port of the sedimentation tank. Next, the motor 61 is started to drive the double-axis cylinder 62 to rotate clockwise, and the triangular block 63 rotates synchronously with the double-axis cylinder 62. The inclined surface of one side of the triangular block 63 continuously presses the circular shaft 66, forcing the hinge rod 65 and the fan-shaped tooth plate 64 to deflect, and the fan-shaped tooth plate 64 pulls the rack 1 309, the T-shaped slide plate 302, the rotating rod 306 and the wedge-shaped scraper 307 to move synchronously, and the rotating rod 306 slides from the inside of the inclined groove 1 303 to the inside of the transverse groove 2 305, forcing the wedge-shaped scraper 307 to tilt and slide down, and scrape the sludge on the bottom surface; The sludge scrapes to the bottom of the wedge-shaped scraper 307 in the adjacent area, and with the continuous rotation of the double-axis cylinder 62, the circular shaft 66 passes over the inclined surface of the triangular block 63 and loses the pressure. Under the flipping action of the hinge force, the hinge rod 65 and the fan-shaped tooth plate 64 are reset, and the fan-shaped tooth plate 64 pulls the T-shaped slide plate 302 and the wedge-shaped scraper 307 to reset and move. During this period, the limit gear 1 308 slides from the inside of the transverse groove 2 305 to the inside of the inclined groove 1 303, forcing the wedge-shaped scraper 307 to lift and move away from the bottom of the sedimentation tank. At the same time, the limit gear 1 308 slides to the inside of the transverse groove 1 304 and meshes with the teeth to realize the rotation of the rotating rod 306 and the wedge-shaped scraper 307, and so on and so forth, realizing intermittent lifting and scraping of the sludge. At the same time, the half gear 67 rotates with the double-axis cylinder 62, and the sliding frame 68 is meshed to realize the movement of the sliding frame 68 and the push frame 612, the slider 69 moves along the inside of the sliding groove 610, and causes the spring damping shock absorber 611 to be compressed, and the push frame 612 moves through the outside of the cutting plate 501, forcing the two sets of sliding shafts 613 to slide linearly along the inside of the second inclined groove 502, and the sliding shaft 613 presses against the bottom inner wall of the second inclined groove 502 to force the cutting plate 501 to sink downward until the tooth groove at the bottom of the cutting plate 501 extends to the lower end of the limit frame 5 and crushes the mud blocks pushed down, thereby reducing the blockage of mud blocks at the feeding port; When the wedge-shaped scraper 307 is turned over, it continuously presses the roller wiping shaft 73 at the adjacent position, and the roller wiping shaft 73 moves synchronously due to the traction of the wedge-shaped scraper 307 on the sliding bar 72 and the limiting gear 74, and the sliding bar 72 slides along the outside of the guide rod 71 and presses the spring assembly ring 77 to form a compression state, and the limiting gear 74 engages with the rack 75 during the movement to realize the self-rotation of the limiting gear 74 and the roller wiping shaft 73, and the self-rotation translation of the roller wiping shaft 73 adapts to the cleaning of the wedge-shaped scraper 307 in the rotating state, so as to assist in removing the sludge adhered to the surface of the wedge-shaped scraper 307, so as to avoid the accumulation of sludge at the scraping end at the bottom of the wedge-shaped scraper 307.

[0022] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A reciprocating sludge scraper for a sedimentation tank, comprising a concave bottom frame (1), an open groove (2), a fixed frame 1 (3) and a fixed frame 2 (4), wherein the open groove (2) is arranged at the inner center of the concave bottom frame (1), and the fixed frame 1 (3) and the fixed frame 2 (4) are respectively arranged on the top surface of the concave bottom frame (1) at the positions on both sides of the open groove (2), characterized in that: A limiting frame (5) is fixedly installed at the opening of one side of the opening slot (2), and a pushing mechanism (6) is arranged on the top surface of the concave bottom frame (1) at a position on one side of the fixed frame (3); A groove (301) is provided at the center of the top surface of the fixing frame 1 (3), and a T-shaped slide plate (302) is slidably connected inside the groove (301); a side surface of the fixing frame 1 (3) close to the fixing frame 2 (4) is provided with a plurality of groups of inclined grooves 1 (303) at equal distances; the first and the second ends of each group of inclined grooves 1 (303) are respectively provided with a transverse groove 1 (304) and a transverse groove 2 (305); and a plurality of teeth are provided at equal distances on the inner wall of the bottom of the transverse groove 1 (304); A plurality of groups of rotating rods (306) are fixedly installed at equal distances on one side of the T-shaped slide plate (302), one end of each group of rotating rods (306) extends to the outside of the corresponding inclined groove one (303) and is fixedly installed with a wedge-shaped scraper (307), a limit gear one (308) is fixedly installed on the middle section of the outside of the rotating rod (306), and the limit gear one (308) is slidably connected to the inside of the inclined groove one (303), and a rack one (309) is fixedly installed at the center of one side of the fixed frame one (3) away from the fixed frame two (4).

2. A sedimentation tank reciprocating sludge scraper according to claim 1, characterized in that: A cutting plate (501) is provided inside the limiting frame (5), the top of the cutting plate (501) extends to the outside of the limiting frame (5), and an inclined inclined groove 2 (502) is provided inside the cutting plate (501) at the upper end of the limiting frame (5), and a plurality of groups of tooth grooves are provided at equal distances on the bottom surface of the cutting plate (501).

3. A sedimentation tank reciprocating sludge scraper according to claim 1, characterized in that: The pushing mechanism (6) comprises a motor (61), the motor (61) being fixedly mounted on the top surface of the concave bottom frame (1) and located at one side of the fixed frame (3) via a mounting frame, and a double-axis cylinder (62) being fixedly mounted at the output shaft at the front end of the motor (61), and a triangular stop block (63) being fixedly mounted at one side of the double-axis cylinder (62) at the rear end bearing.

4. A sedimentation tank reciprocating sludge scraper according to claim 1, characterized in that: The pushing mechanism (6) further comprises a fan-shaped tooth plate (64), the fan-shaped tooth plate (64) being meshed with one side of the rack one (309), and a hinge rod (65) being fixedly mounted on the side of the fan-shaped tooth plate (64) away from the rack one (309), the bottom center of the hinge rod (65) being hinged to the top surface of the concave bottom frame (1), and a round shaft (66) being fixedly mounted on the bottom surface of the hinge rod (65) and at one end away from the fan-shaped tooth plate (64), the round shaft (66) extending from the top surface of the double-axis cylinder (62) and being located on one side of the triangular stop block (63).

5. A sedimentation tank reciprocating sludge scraper according to claim 4, characterized in that: A half gear (67) is fixedly mounted on one end of the double-axis cylinder (62) away from the motor (61) via a long rod, and a slide frame (68) with a circular structure is sleeved on the outside of the half gear (67), and a plurality of groups of teeth are arranged at equal distances on the inner wall of the bottom of the slide frame (68). A slider (69) is fixedly mounted at the center of the bottom of the slide frame (68), and the slider (69) is slidably connected to the inside of a slide groove (610) arranged on one side of the top surface of the concave bottom frame (1), and a spring damping shock absorber (611) is fixedly mounted between the slider (69) and the inner wall of one side of the slide groove (610), and a push frame (612) with a concave structure is fixedly mounted at the center of one side of the slide frame (68), and convex slide shafts (613) are fixedly mounted on the inner walls of the front and rear ends of the push frame (612) and at the open end, and two groups of the slide shafts (613) are respectively slidably connected to the lower end of the inside of the second inclined groove (502).

6. A sedimentation tank reciprocating sludge scraper according to claim 1, characterized in that: The height of the top surface of the second fixing frame (4) exceeds the height of the top surface of the first fixing frame (3) by 5-10 cm, and the second fixing frame (4) is provided with an inner groove (401) at the top end on one side close to the first fixing frame (3), and a cleaning member (7) is provided inside the inner groove (401).

7. A sedimentation tank reciprocating sludge scraper according to claim 6, characterized in that: The cleaning member (7) comprises a guide rod (71), the guide rod (71) being fixedly mounted inside the inner groove (401), and a plurality of groups of slide rods (72) being sleeved at equal distances outside the guide rod (71), one end of the slide rod (72) extending to the notch of the inner groove (401) and being rotatably connected to a roller wiping shaft (73), and the roller wiping shaft (73) being fixedly sleeved with a limit gear 2 (74) at one end of the slide rod (72), the bottoms of the plurality of groups of limit gear 2 (74) being meshed with racks 2 (75) fixedly mounted on the inner wall of the bottom of the inner groove (401), and the roller wiping shaft (73) being located at the rear end of the top of the wedge-shaped scraper (307).

8. A sedimentation tank reciprocating sludge scraper according to claim 7, characterized in that: A plurality of groups of sleeves (76) are fixedly sleeved at equal distances on the outside of the guide rod (71), and the slide rod (72) is arranged between two groups of sleeves (76). A spring coil (77) is wound and arranged on the outside of the guide rod (71) between the slide rod (72) and one of the groups of sleeves (76).

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