Concrete mortar raw material screening device capable of avoiding clogging

Abstract

The application relates to a clogging-avoiding concrete mortar raw material screening device and relates to the technical field of concrete mortar raw material processing.The device comprises a left support and a right support.The bolt connection structure of the screening frame, the sliding strip and the movable seat is arranged, the screening assembly can be conveniently disassembled and cleaned, the screening frame is connected with the two sliding strips and the movable seat through bolts, when residual raw materials are accumulated in the screening frame, the connecting bolts of the screening frame and the sliding strips and the movable seat can be unscrewed, the screening frame can be disassembled from between the sliding strips, after disassembly, the inside of the screening frame can be completely cleaned, meanwhile, the worn screening frame or the movable seat can be individually replaced, the problem that the screening assembly is integrally fixed and is difficult to disassemble, clean and maintain in the prior art is solved, the replacement device is arranged, when the screen is needed to be cleaned or replaced, the limiting block is pushed towards the first shell, the limiting block compresses the telescopic rod and the first spring and is separated from the limiting groove, and the screen can be taken out from the screening frame.

Description

Technical Field

[0001] This application relates to the field of concrete mortar raw material processing technology, and in particular to a concrete mortar raw material screening device that avoids clogging. Background Technology

[0002] Concrete is a general term for engineering composite materials that bind aggregates together with cementing materials. Generally speaking, concrete uses cement as cementing material, sand and stone as aggregates, and water in a certain proportion to make it. It is widely used in the field of civil engineering. Sand is a key raw material for making concrete, and its particle size directly affects the performance of concrete. Therefore, sand raw materials need to be graded by screening equipment.

[0003] In the prior art, patent CN222343447U discloses a concrete mortar raw material screening device to avoid clogging. The device supports an anti-clogging component, a screening component, and a power component through a left support and a right support, respectively. The motor of the power component drives the crank to rotate via belt drive. The crank drives the movable seat and the screening frame to move left and right on the auxiliary rollers through the connecting rod. At the same time, the raw material screening is achieved by limiting and guiding with the slide rail and slide bar. The anti-clogging component pushes the moving plate and the top head to fit against the bottom screen of the screening frame through the spring on the slide rod. The upward pushing force of the top head on the impurities in the screen hole when the screening frame moves achieves the purpose of preventing clogging and improving efficiency.

[0004] However, the above-mentioned equipment still has obvious shortcomings: the moving plate is directly set below the screening component, and the material passing through the screening component during the screening process is easy to accumulate on the surface of the moving plate. In addition, the moving plate has a fixed top, and the material accumulation in the gap between the top and the surface of the plate is difficult to clean. At the same time, the patent does not mention any cleaning solution for the moving plate and its top. Furthermore, the screening component adopts a fixed connection structure, and the screening frame, screen and other components cannot be easily disassembled. After long-term use, the material residue inside the component will continue to affect the screening efficiency, and it is also inconvenient to replace and maintain the components after wear. It is difficult to meet the needs of convenient cleaning and efficient maintenance in actual production. Therefore, a concrete mortar raw material screening equipment that avoids clogging is provided. Utility Model Content

[0005] The purpose of this application is to provide a concrete mortar raw material screening device that avoids clogging, featuring easy disassembly and cleaning of screening components, quick disassembly and maintenance of the screen, and the solution to the problem of difficult cleaning of material accumulation on the moving plate and top.

[0006] This application provides a concrete mortar raw material screening device to prevent clogging, employing the following technical solution: It includes a left support and a right support, and further includes a screening component and an anti-clogging component mounted on the left support, with the screening component positioned directly above the anti-clogging component. The screening component includes four auxiliary rollers fixed to the left support and a pair of slide rails. Sliding strips are slidably mounted inside the slide rails, and a screening frame is positioned between the two sliding strips. The screening frame is bolted to the sliding strips, and a movable seat is fixed to the tail end of the screening frame. The movable seat is bolted to the screening frame, and the movable seat is connected to an external actuator for driving the screening frame. Force component connection; the screening frame is equipped with a replacement device, the replacement device includes a first housing, the first housing is fixedly connected to the inside of the screening frame, a telescopic rod is fixedly connected inside the first housing, a first spring is sleeved on the surface of the telescopic rod, the left end of the first spring is fixedly connected to the inside of the first housing, and a limit block is fixedly connected to the right end of the first spring and the telescopic rod; a second housing is fixedly connected inside the screening frame, and a limit groove is opened on the side of the second housing. A screen is movably installed inside the limit block and the limit groove, and the screen is engaged with the screening frame through the cooperation of the limit block and the limit groove; By adopting the above technical solution, clarifying the supporting roles of the left and right supports, and defining the positional relationship of the screening component directly above the anti-blocking component, a structural foundation is provided for the coordinated operation of raw material screening and anti-blocking. Simultaneously, the bolted connection between the screening frame and the sliding strip and movable seat enables convenient disassembly of the screening frame, solving the problem of difficult cleaning due to the overall fixed screening component in existing technologies. The first housing, telescopic rod, first spring, and limiting block of the internal replacement device of the screening frame cooperate with the second housing and limiting groove, allowing for quick assembly and disassembly of the screen via snap-fit, enabling screen maintenance without tools and overcoming the defect of difficult screen replacement due to fixed screens in existing technologies. The overall structure balances screening, anti-blocking, and convenient maintenance, meeting the actual needs of concrete mortar raw material screening.

[0007] Preferably, a slider is fixedly connected to the side of the limiting block, and a groove is provided inside the first housing. The slider is slidably connected inside the groove. There are two sets of sliders, which are symmetrically arranged on both sides of the limiting block.

[0008] By adopting the above technical solution, two sets of symmetrical sliders are set on the side of the limiting block and slide in cooperation with the sliding groove inside the first housing to accurately limit the movement direction of the limiting block; when the limiting block is pushed to compress or reset, the slider slides synchronously along the sliding groove to avoid the limiting block from deviating, ensuring that the limiting block can be stably aligned with the limiting groove of the second housing, improving the stability of the screen clamping, preventing the screen from shifting when the screening frame moves, and ensuring the reliability of the screening process.

[0009] Preferably, the anti-blocking component includes four sliding rods, all of which are slidably connected to the left bracket. Each of the four sliding rods has a limiting plate fixedly installed at its bottom end. The top of each of the four sliding rods is connected to a movable plate by bolts. The top of the movable plate is fixedly provided with several top heads. Each of the four sliding rods is fitted with a second spring.

[0010] By adopting the above technical solution, through the sliding connection between the four sliding rods in the anti-blocking component and the left support, and the setting of the limiting plate at the bottom of the four sliding rods, the four sliding rods can slide up and down while preventing them from slipping off the left support. The bolt connection between the moving plate and the four sliding rods allows for easy disassembly of the moving plate, facilitating the cleaning of the surface of the moving plate and the material accumulation in the gap between the top and the top, thus solving the problem of difficult cleaning of the fixed moving plate in the prior art. Each of the four sliding rods is fitted with a second spring, which provides an upward force to the moving plate, ensuring that the top can fit against the screen and providing power support for the anti-blocking function.

[0011] Preferably, the screen openings of the screen are matched with the top head, and the screen can slide left and right on the top head of the moving plate.

[0012] By adopting the above technical solution, the screen holes of the screen are matched with the top head, and the screen can slide left and right on the top head of the moving plate. When the screening frame moves, the top head can accurately insert into the screen holes of the screen. The top head fits the screen with the moving plate and applies an upward pushing force to the impurities blocking the screen holes, effectively removing the blockage and avoiding the impact of screen hole blockage on screening efficiency, thus ensuring the continuous and smooth screening process of concrete mortar raw materials.

[0013] Preferably, the auxiliary roller is attached to the bottom of the screening frame, and the screening frame can move left and right on the auxiliary roller.

[0014] By adopting the above technical solution, the auxiliary rollers are attached to the bottom of the screening frame to provide stable support for the screening frame and reduce the frictional resistance when the screening frame moves left and right. At the same time, the screening frame can slide flexibly on the auxiliary rollers to ensure the smoothness of the screening frame movement, avoid the screening frame from shaking due to unstable support, improve the uniformity of raw material screening, and ensure stable screening effect.

[0015] Preferably, the slide is fixedly connected to the left bracket, and the slide bar can slide along the length of the slide.

[0016] By adopting the above technical solution, the movement trajectory of the screening frame is precisely limited by the fixed connection between the slide rail and the left support, and the sliding of the slide bar along the length of the slide rail. When the external power drives the screening frame to move, the slide bar slides synchronously along the slide rail to prevent the screening frame from shifting laterally, ensuring that the screening frame always moves in the preset direction, improving the stability of the screening process, and not affecting the subsequent disassembly and cleaning of the screening frame.

[0017] Preferably, the two ends of the second spring are fixedly connected to the bottom of the left bracket and the top of the limiting plate, respectively, and the second spring can push the moving plate upward when it is in a stretched state.

[0018] By adopting the above technical solution, the two ends of the second spring are fixedly connected to the bottom of the left support and the top of the limiting plate, respectively, so that the tensile force of the second spring can be stably transmitted to the limiting plate. When the second spring is in the stretched state, it pulls the limiting plate to drive the four sliding rods to move upward, thereby pushing the moving plate and the top head to continuously adhere to the bottom of the screen, ensuring the top head's effect on clearing the screen hole blockage.

[0019] Preferably, the first housing and the second housing are symmetrically arranged inside the screening frame, and the central axis of the first housing and the central axis of the second housing are on the same straight line to ensure that the limiting block can be accurately engaged in the limiting groove.

[0020] By adopting the above technical solution, the first and second housings are symmetrically arranged inside the screening frame, and their central axes are collinear. This ensures that the limiting block in the first housing can accurately align with the limiting groove of the second housing when the first spring resets. This structure avoids the limiting block from failing to smoothly engage with the limiting groove due to housing position offset, simplifies the installation of the screen, ensures the stability of the screen after engagement, prevents the screen from loosening due to housing offset during screening, and improves the reliability of equipment operation.

[0021] In summary, this application includes at least one of the following beneficial technical effects: This non-clogging concrete mortar raw material screening equipment utilizes a bolted connection structure between the screening frame, slide bars, and movable seat to facilitate easy disassembly and cleaning of the screening components. Within the screening components, the screening frame is bolted to two slide bars and the movable seat. When residual raw material accumulates inside the screening frame, the bolts connecting the screening frame to the slide bars and movable seat can be unscrewed, allowing the screening frame to be removed from between the slide bars. Disassembly enables thorough cleaning of the interior of the screening frame and facilitates the individual replacement of worn screening frames or movable seats. This solves the problem of existing technologies where the screening components are fixed as a whole, making disassembly, cleaning, and maintenance difficult. Furthermore, a replacement device is included. When cleaning or replacing the screen is required, pushing the limiting block towards the first housing compresses the telescopic rod and the first spring, disengaging it from the limiting groove. Remove the screen from the screening frame; after cleaning or replacement, squeeze the limiting block, and the first spring resets, pushing the limiting block back into the limiting groove, achieving quick screen fixation. Screen assembly and disassembly can be completed without tools, solving the problem of inconvenient screen fixing, replacement, and maintenance in existing technologies. By setting a bolted connection structure between the moving plate and the four sliding rods, the problem of difficult cleaning of material accumulation on the moving plate and top is solved: In the anti-blocking component, the moving plate is connected to the top of the four sliding rods by bolts. When screening residue accumulates on the surface of the moving plate or in the gap between the top, the connecting bolts can be unscrewed directly to remove the moving plate from the four sliding rods. After disassembly, the surface of the moving plate and the gap between the top can be thoroughly cleaned, preventing material residue from affecting subsequent screening, effectively solving the defects of fixed moving plate and difficult cleaning of accumulated material in existing technologies. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present application. Figure 2 This is a schematic diagram of the structure in frontal three-dimensional cross-section of this application; Figure 3 This is a cross-sectional structural schematic diagram of the replacement device in this application; Figure 4 for Figure 3 Schematic diagram of the structure at point A; Figure 5 This is a partial structural diagram of the tail end of the screening frame in this application.

[0023] In the picture: 1. Left support; 2. Right support; 3. Screening assembly; 31. Auxiliary roller; 32. Slide rail; 33. Slide bar; 34. Screening frame; 35. Movable seat; 36. Changing device; 361. First housing; 362. Telescopic rod; 363. First spring; 364. Limiting block; 365. Sliding block; 366. Slide groove; 367. Second housing; 368. Limiting groove; 37. Screen; 4. Anti-blocking assembly; 41. Four slide bars; 42. Limiting plate; 43. Moving plate; 44. Top head; 45. Second spring. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 This application will be described in further detail below.

[0025] Example 1: A concrete mortar raw material screening device to avoid clogging, referring to... Figure 1 , Figure 4 and Figure 5 The system includes a left support 1 and a right support 2, and also includes a screening component 3 and an anti-blocking component 4 mounted on the left support 1. The screening component 3 is positioned directly above the anti-blocking component 4. The screening component 3 includes four auxiliary rollers 31 fixed on the left support 1 and a pair of slide rails 32. Sliding strips 33 are slidably mounted inside the slide rails 32, and a screening frame 34 is provided between the two sliding strips 33. The screening frame 34 is connected to the sliding strips 33 by bolts. A movable seat 35 is fixedly mounted at the tail end of the screening frame 34, and the movable seat 35 is connected to the screening frame 34 by bolts. The movable seat 35 is connected to the outer... A power assembly for driving the movement of the screening frame 34 is connected; a replacement device 36 is provided inside the screening frame 34, the replacement device 36 includes a first housing 361, the first housing 361 is fixedly connected inside the screening frame 34, a telescopic rod 362 is fixedly connected inside the first housing 361, a first spring 363 is sleeved on the surface of the telescopic rod 362, the left end of the first spring 363 is fixedly connected inside the first housing 361, and a limit block 364 is fixedly connected to the right end of the first spring 363 and the telescopic rod 362; a second... The second housing 367 has a limiting groove 368 on its side. A screen 37 is movably installed inside the limiting block 364 and the limiting groove 368. The screen 37 is engaged with the screening frame 34 through the cooperation of the limiting block 364 and the limiting groove 368. By clarifying the supporting role of the left support 1 and the right support 2, and the positional relationship of the screening component 3 being placed directly above the anti-blocking component 4, a structural basis is provided for the coordinated work of raw material screening and anti-blocking. At the same time, the screening frame 34 is bolted to the slide bar 33 and the movable seat 35 to realize the coordinated work of the screening frame 34. The convenient disassembly of component 4 solves the problem of difficult cleaning of the screen component 3 when it is fixed as a whole in the prior art; the first housing 361, telescopic rod 362, first spring 363, and limiting block 364 of the replacement device 36 inside the screen frame 34 cooperate with the second housing 367 and limiting groove 368 to enable the screen 37 to be quickly disassembled and assembled by snap-fit, and the screen 37 can be maintained without tools, solving the defect of difficult replacement of the fixed screen 37 in the prior art; the overall structure takes into account screening, anti-clogging and convenient maintenance, and meets the actual needs of screening concrete mortar raw materials.

[0026] Reference Figure 1 , Figure 2 and Figure 3A slider 365 is fixedly connected to the side of the limiting block 364. A groove 366 is provided inside the first housing 361, and the slider 365 is slidably connected inside the groove 366. There are two sets of sliders 365, which are symmetrically arranged on both sides of the limiting block 364. The anti-blocking component 4 includes four slide rods 41, all of which are slidably connected to the left bracket 1. A limiting plate 42 is fixedly provided at the bottom of each of the four slide rods 41. A moving plate 43 is bolted to the top of each of the four slide rods 41. Several top heads 44 are fixedly provided on the top of the moving plate 43. A second spring 45 is sleeved on each of the four slide rods 41. By setting two sets of symmetrical sliders 365 on the side of the limiting block 364 and slidingly engaging with the groove 366 inside the first housing 361, the movement direction of the limiting block 364 is precisely limited. When the limiting block 364 is pushed to compress or reset, the slider 365 slides synchronously along the groove 366. To prevent the limiting block 364 from shifting and ensure that it is stably aligned with the limiting groove 368 of the second housing 367, the stability of the screen 37 is improved, preventing the screen 37 from shifting when the screening frame 34 moves, and ensuring the reliability of the screening process. Through the sliding connection between the four sliding rods 41 in the anti-blocking component 4 and the left support 1, and the setting of the limiting plate 42 at the bottom of the four sliding rods 41, the four sliding rods 41 can slide up and down, while preventing them from slipping off the left support 1. The bolt connection between the moving plate 43 and the four sliding rods 41 allows for easy disassembly of the moving plate 43, facilitating the cleaning of the surface of the moving plate 43 and the gap between the top head 44 and the material, thus solving the problem of difficult cleaning of the fixed moving plate 43 in the prior art. The four sliding rods 41 are all fitted with a second spring 45, which provides an upward force to the moving plate 43, ensuring that the top head 44 can fit against the screen 37, providing power support for the anti-blocking function.

[0027] Reference Figure 1 , Figure 2 and Figure 3 The sieve holes of the screen 37 match the top head 44. The screen 37 can slide left and right on the top head 44 of the moving plate 43. The auxiliary roller 31 is attached to the bottom of the screening frame 34, and the screening frame 34 can move left and right on the auxiliary roller 31. Because the sieve holes of the screen 37 match the top head 44, and the screen 37 can slide left and right on the top head 44 of the moving plate 43, the top head 44 can accurately insert into the sieve holes of the screen 37 when the screening frame 34 moves. The top head 44, along with the moving plate 43, adheres to the screen 37, clearing impurities blocked in the sieve holes. Applying an upward thrust effectively removes blockages, preventing screen blockage from affecting screening efficiency and ensuring a smooth screening process for concrete mortar raw materials. The auxiliary roller 31 fits against the bottom of the screening frame 34, providing stable support for the screening frame 34 and reducing frictional resistance when the screening frame 34 moves left and right. At the same time, the screening frame 34 can slide flexibly on the auxiliary roller 31, ensuring the stability of the screening frame 34's movement and preventing the screening frame 34 from shaking due to unstable support, thus improving the uniformity of raw material screening and ensuring stable screening results.

[0028] Reference Figure 1 , Figure 2 and Figure 3 The slide rail 32 is fixedly connected to the left support 1. The slide bar 33 can slide along the length of the slide rail 32. The two ends of the second spring 45 are fixedly connected to the bottom of the left support 1 and the top of the limiting plate 42, respectively. When the second spring 45 is in a stretched state, it can push the moving plate 43 to move upward. The first housing 361 and the second housing 367 are symmetrically arranged inside the screening frame 34, and the central axis of the first housing 361 and the central axis of the second housing 367 are on the same straight line, ensuring that the limiting block 364 can accurately fit into the limiting groove 368. Through the fixed connection of the slide rail 32 to the left support 1 and the cooperation of the slide bar 33 sliding along the length of the slide rail 32, the movement trajectory of the screening frame 34 is accurately limited. When the external power drives the screening frame 34 to move, the slide bar 33 slides synchronously along the slide rail 32 to prevent the screening frame 34 from shifting laterally, ensuring that the screening frame 34 always moves in the preset direction, improving the stability of the screening process, and not affecting the subsequent disassembly and cleaning of the screening frame 34. The second spring 45 is fixedly connected to the bottom of the left bracket 1 and the top of the limiting plate 42 at both ends, so that the tension of the second spring 45 can be stably transmitted to the limiting plate 42. When the second spring 45 is in the stretched state, it pulls the limiting plate 42 to drive the four sliding rods 41 to move upward, thereby pushing the moving plate 43 and the top head 44 to continuously adhere to the bottom of the screen 37, ensuring the top head 44's effect on clearing the screen hole blockage. The first housing 361 and the second housing 367 are symmetrically arranged inside the screening frame 34, and their central axes are collinear, ensuring that the limiting block 364 in the first housing 361 can accurately align with the limiting groove 368 of the second housing 367 when the first spring 363 is reset. This structure avoids the limiting block 364 from failing to smoothly engage with the limiting groove 368 due to housing position deviation, simplifies the installation operation of the screen 37, and ensures the stability of the screen 37 after engagement, preventing the screen 37 from loosening due to housing deviation during screening, and improving the reliability of equipment operation.

[0029] In this embodiment, by setting a bolted connection structure between the screening frame 34 and the slide bars 33 and the movable seat 35, the screening assembly 3 can be easily disassembled and cleaned. In the screening assembly 3, the screening frame 34 is connected to the two slide bars 33 and the movable seat 35 by bolts respectively. When residual raw materials accumulate inside the screening frame 34, the connecting bolts between the screening frame 34 and the slide bars 33 and the movable seat 35 can be unscrewed to remove the screening frame 34 from between the slide bars 33. After disassembly, the inside of the screening frame 34 can be thoroughly cleaned, and it is also convenient to replace the worn screening frame 34 or the movable seat 35 individually. This solves the problem of the screening assembly 3 being fixed as a whole and difficult to disassemble, clean, and maintain in the prior art. By setting a replacement device 36, when it is necessary to clean or replace the screen 37, the limiting block 364 is pushed towards the first housing 361. The limiting block 364 compresses the telescopic rod 362 and the first spring 363 and disengages from the limiting groove 368, thus removing the screen 37. 7. Remove from the screening frame 34; after cleaning or replacement, squeeze the limiting block 364, the first spring 363 resets and pushes the limiting block 364 back into the limiting groove 368, realizing the quick fixing of the screen 37. The screen 37 can be disassembled and assembled without tools, solving the problem of inconvenient fixing, replacement and maintenance of the screen 37 in the prior art; by setting the bolt connection structure between the moving plate 43 and the four sliding rods 41, the problem of difficult cleaning of the material accumulation on the moving plate 43 and the top 44 is solved: in the anti-blocking component 4, the moving plate 43 is connected to the top of the four sliding rods 41 by bolts. When screening residue material accumulates on the surface of the moving plate 43 or in the gap of the top 44, the connecting bolts can be unscrewed directly to remove the moving plate 43 from the four sliding rods 41; after disassembly, the surface of the moving plate 43 and the gap of the top 44 can be thoroughly cleaned to avoid the accumulation of material residue affecting subsequent screening, effectively solving the defects of the moving plate 43 being fixed and the accumulation of material being difficult to clean in the prior art.

[0030] The implementation principle of this application embodiment is as follows: After the external power component for driving the movement of the screening frame 34 is started, the power is transmitted to the screening frame 34 through the movable seat 35; since the tail end of the screening frame 34 is fixedly connected to the movable seat 35 by bolts, and the two sides of the screening frame 34 are bolted to the slide bar 33, and the bottom is in contact with the four auxiliary rollers 31 on the left support 1, and the slide bar 33 can slide along the length direction of the slide rail 32 fixed on the left support 1, the screening frame 34 will move left and right in the horizontal direction under the action of power, with the auxiliary rollers 31 as support and the slide bar 33 and slide rail 32 as limiting guides, providing a power basis for raw material screening; the concrete mortar raw material to be screened is put into the screening frame 34, and the left side of the screening frame 34... During the rightward movement, the raw material sways within the screening frame 34; material meeting the particle size requirements falls through the sieve holes of the screen 37, completing the screening and grading; at this time, the screen 37 is stably fixed within the screening frame 34 by the replacement device 36—the first housing 361 and the second housing 367 of the replacement device 36 are symmetrical inside the screening frame 34 and their central axes are collinear; the limiting block 364, under the restoring force of the first spring 363, engages with the limiting groove 368 of the second housing 367, while the sliders 365 on both sides of the limiting block 364 slide along the sliding groove 366 of the first housing 361, ensuring that the screen 37 is firmly clamped and preventing the screen 37 from shifting when the screening frame 34 moves; during the screening process, the anti-blocking component 4 operates synchronously to... To prevent screen 37 from clogging, the four sliding rods 41 of the anti-clogging component 4 are all slidably connected to the left support 1. The limiting plate 42 at the bottom of the four sliding rods 41 can prevent the four sliding rods 41 from slipping off the left support 1. The two ends of the second spring 45 sleeved on each of the four sliding rods 41 are fixedly connected to the bottom of the left support 1 and the top of the limiting plate 42, respectively. When the equipment is working, the second spring 45 is in a stretched state. Its tension drives the four sliding rods 41 to slide upward along the left support 1 through the limiting plate 42, thereby pushing the moving plate 43 connected to the top of the four sliding rods 41 by bolts to move upward, so that several top heads 44 on the top of the moving plate 43 fit against the bottom of the screen 37. Since the screen holes of the screen 37 match the top heads 44, and the screening frame 34 is continuously... The screen 37 moves left and right, so it slides synchronously left and right on the top 44 of the moving plate 43. The top 44 applies an upward pushing force to the impurities stuck in the screen holes of the screen 37, pushing the impurities out of the screen holes and achieving the anti-clogging function. When the equipment needs to be cleaned or parts replaced, it can be operated with the help of the various detachable structures: if it is necessary to clean the moving plate 43 and the top 44, unscrew the connecting bolts between the moving plate 43 and the top of the four slide rods 41, and the moving plate 43 can be removed from the four slide rods 41 to clean the material accumulated on the plate surface and the gap between the top 44; if it is necessary to clean the inside of the screening frame 34 or replace the screening frame 34, unscrew the connecting bolts between the screening frame 34 and the slide bar 33 and the movable seat 35, and the screening frame 34 can be removed from between the slide bars 33.To clean or replace the screen 37, push the limiting block 364 towards the first housing 361. The limiting block 364 compresses the telescopic rod 362 and the first spring 363. Simultaneously, the sliders 365 on both sides slide along the sliding groove 366. Once the limiting block 364 disengages from the limiting groove 368 of the second housing 367, the screen 37 can be removed from the screening frame 34. After cleaning or replacement, reverse the steps to reset all components and restore the equipment to its working state.

Claims

1. A concrete mortar raw material screening device to avoid clogging, comprising a left support (1) and a right support (2), characterized in that, It also includes a screening assembly (3) and an anti-blocking assembly (4) mounted on the left support (1), with the screening assembly (3) positioned directly above the anti-blocking assembly (4); the screening assembly (3) includes four auxiliary rollers (31) fixed on the left support (1) and a pair of slide rails (32), with slide bars (33) slidably mounted inside the slide rails (32), and a screening frame (34) between the two slide bars (33). The screening frame (34) is connected to the slide bars (33) by bolts, and a movable seat (35) is fixedly mounted at the tail end of the screening frame (34). The movable seat (35) is connected to the screening frame (34) by bolts, and the movable seat (35) is connected to an external power assembly for driving the screening frame (34) to move; a replacement device (36) is provided inside the screening frame (34), and the replacement device (36) includes a first housing ( 361), the first housing (361) is fixedly connected inside the screening frame (34), and a telescopic rod (362) is fixedly connected inside the first housing (361). A first spring (363) is sleeved on the surface of the telescopic rod (362). The left end of the first spring (363) is fixedly connected inside the first housing (361). A limiting block (364) is fixedly connected to the right end of the first spring (363) and the telescopic rod (362). A second housing (367) is fixedly connected inside the screening frame (34). A limiting groove (368) is opened on the side of the second housing (367). A screen (37) is movably installed inside the limiting block (364) and the limiting groove (368). The screen (37) is engaged with the screening frame (34) through the cooperation of the limiting block (364) and the limiting groove (368).

2. The concrete mortar raw material screening equipment for preventing clogging according to claim 1, characterized in that: The limiting block (364) is fixedly connected to a slider (365) on its side. The first housing (361) has a groove (366) inside. The slider (365) is slidably connected inside the groove (366). There are two sets of sliders (365), which are symmetrically arranged on both sides of the limiting block (364).

3. The concrete mortar raw material screening equipment for avoiding clogging according to claim 1, characterized in that: The anti-blocking component (4) includes four slide rods (41), all four slide rods (41) are slidably connected to the left bracket (1), the bottom of each of the four slide rods (41) is fixedly provided with a limiting plate (42), the top of each of the four slide rods (41) is connected to a moving plate (43) by bolts, the top of the moving plate (43) is fixedly provided with several top heads (44), and each of the four slide rods (41) is sleeved with a second spring (45).

4. A concrete mortar raw material screening device to avoid clogging according to claim 3, characterized in that: The sieve holes of the sieve (37) match the top head (44), and the sieve (37) can slide left and right on the top head (44) of the moving plate (43).

5. A concrete mortar raw material screening device to avoid clogging according to claim 1, characterized in that: The auxiliary roller (31) is attached to the bottom of the screening frame (34), and the screening frame (34) can move left and right on the auxiliary roller (31).

6. A concrete mortar raw material screening device for preventing clogging according to claim 1, characterized in that: The slide (32) is fixedly connected to the left bracket (1), and the slide bar (33) can slide along the length of the slide (32).

7. A concrete mortar raw material screening device for preventing clogging according to claim 3, characterized in that: The two ends of the second spring (45) are fixedly connected to the bottom of the left bracket (1) and the top of the limiting plate (42) respectively. When the second spring (45) is in a stretched state, it can push the moving plate (43) to move upward.

8. A concrete mortar raw material screening device for preventing clogging according to claim 1, characterized in that: The first housing (361) and the second housing (367) are symmetrically arranged inside the screening frame (34), and the central axis of the first housing (361) and the central axis of the second housing (367) are on the same straight line, ensuring that the limiting block (364) can be accurately inserted into the limiting groove (368).

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