Premixed concrete coarse impurity filtering device

Abstract

The utility model relates to the field of constructional engineering, and discloses a premixed concrete coarse impurity filtering device which comprises a supporting box, a support is fixedly connected to the top end of the supporting box, a motor is arranged in the middle of the support, a rotating shaft is arranged at the output end of the motor through a transmission assembly, and a stirring rod is fixedly connected to the output end of the motor. A convex block is fixedly connected to the outer wall of the rotating shaft, a filtering frame is slidably connected to the inner wall of the supporting box, and a filtering frame is detachably mounted on the inner wall of the filtering frame. According to the utility model, the motor drives the belt pulley, the stirring rod, the rotating shaft and other components to cooperatively operate, so that the filter rack continuously and transversely moves under the action of the convex block and the reset spring, and the filter frame transversely moves left and right along with the filter rack, thereby greatly improving the screening effect and effectively avoiding the blockage problem caused by fixation of the filter screen; and meanwhile, the stirring rod continuously stirs to prevent concrete condensation, and efficient and stable screening is ensured.

Description

Technical Field

[0001] This utility model relates to the field of construction engineering, and in particular to a filter device for coarse impurities in ready-mixed concrete. Background Technology

[0002] In the field of construction engineering, the quality of ready-mixed concrete plays a crucial role in the safety and durability of the entire project. During the production process, ready-mixed concrete often contains some coarse impurities, such as large stones, wood blocks, and metal blocks. If these impurities are not removed in time, they will affect the performance of the concrete, leading to defects in the concrete structure and reducing the quality of the project.

[0003] The existing technology has the following drawbacks: most traditional concrete impurity filtration devices adopt the form of fixed filter screens. During the screening process, concrete easily accumulates on the filter screen, causing it to become clogged, reducing screening efficiency, and requiring frequent shutdowns to clean the filter screen, which seriously affects the production progress. Moreover, replacing the filter screen is extremely inconvenient, usually requiring the use of tools to remove multiple bolts and other connecting parts, which is complicated and cumbersome, consuming a lot of time and labor costs. Therefore, a premixed concrete coarse impurity filtration device is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a filter device for coarse impurities in ready-mixed concrete, which aims to improve the problem of clogging caused by fixed filter screens in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a premixed concrete coarse impurity filtration device, comprising a support box, a bracket fixedly connected to the top of the support box, a motor disposed in the middle of the bracket, a rotating shaft disposed at the output end of the motor via a transmission assembly, a stirring rod fixedly connected to the output end of the motor, a protrusion fixedly connected to the outer wall of the rotating shaft, a filter frame slidably connected to the inner wall of the support box, a filter frame detachably installed on the inner wall of the filter frame, a collar fixedly connected to the bottom end of the filter frame, the left end of the collar elastically connected to the support box via a return spring, a fixing pipe fixedly connected to the inner wall of the support box, and a limit assembly disposed on the inner wall of the filter frame;

[0006] The transmission assembly includes pulleys, and there are two sets of pulleys. The two sets of pulleys are connected by a belt drive, and the pulleys are respectively fixedly connected to the outer wall of the motor and the rotating shaft.

[0007] As a further description of the above technical solution:

[0008] The limiting component includes a stop block that passes through and is slidably connected to the inner wall of the filter frame. There are two sets of the stop blocks, which are elastically connected to each other by a positioning spring. A guide rod is slidably connected to the inner wall of the stop block.

[0009] As a further description of the above technical solution:

[0010] The guide rod is fixedly connected to the inner wall of the filter frame.

[0011] As a further description of the above technical solution:

[0012] The outer wall of the baffle is in contact with the outer wall of the filter frame.

[0013] As a further description of the above technical solution:

[0014] The two sets of baffles are symmetrically arranged on the inner wall of the filter frame.

[0015] As a further description of the above technical solution:

[0016] The left end of the collar is fixedly connected to one end of the return spring, and the other end of the return spring is fixedly connected to the inner wall of the left end of the support box.

[0017] As a further description of the above technical solution:

[0018] The collar is slidably connected to the outer wall of the fixed tube.

[0019] As a further description of the above technical solution:

[0020] The stirring rod is rotatably connected to the inner wall of the support box, and the outer wall of the protrusion is in contact with the side wall of the filter frame.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the motor drives the pulley, stirring rod and rotating shaft and other components to work together, so that the filter frame moves horizontally continuously under the action of the protrusion and the return spring. The filter frame moves horizontally left and right accordingly, which greatly increases the screening effect and effectively avoids the clogging problem caused by the fixed filter screen. At the same time, the stirring rod can prevent the concrete from solidifying and ensure the high efficiency and stability of the screening process.

[0023] 2. In this utility model, the filter frame can be quickly replaced by blocking or not blocking the filter frame with a stop block, without the need for additional tools to repeatedly tighten the bolts, making it simple and convenient in actual operation. Attached Figure Description

[0024] Figure 1This is a three-dimensional schematic diagram of the support box of a premixed concrete coarse impurity filtration device proposed in this utility model;

[0025] Figure 2 This is a schematic cross-sectional view of the support box of a premixed concrete coarse impurity filtration device proposed in this utility model;

[0026] Figure 3 This is a three-dimensional schematic diagram of the filter frame and filter housing of a premixed concrete coarse impurity filtration device proposed in this utility model.

[0027] Figure 4 This is a cross-sectional schematic diagram of the filter frame of a premixed concrete coarse impurity filtration device proposed in this utility model.

[0028] Legend:

[0029] 1. Support box; 2. Bracket; 3. Motor; 4. Pulley; 5. Belt; 6. Shaft; 7. Stirring rod; 8. Protrusion; 9. Filter frame; 10. Collar; 11. Return spring; 12. Fixing tube; 13. Stop block; 14. Positioning spring; 15. Guide rod; 16. Filter frame. Detailed Implementation

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Reference Figure 1 - Figure 3This utility model provides an embodiment of a premixed concrete coarse impurity filtration device, comprising a support box 1, a bracket 2 fixedly connected to the top of the support box 1, the bracket 2 mainly supporting and connecting a motor 3, the motor 3 being disposed in the middle of the bracket 2, and a rotating shaft 6 being disposed at the output end of the motor 3 via a transmission assembly, and a stirring rod 7 being fixedly connected to the output end of the motor 3. The stirring rod 7 can stir the concrete during the filtration process, causing the concrete particles to move continuously, disrupting their tendency to solidify, maintaining good fluidity of the concrete, and ensuring the smooth progress of the filtration process. A protrusion 8 is fixedly connected to the outer wall of the rotating shaft 6, the protrusion 8 being elliptical in shape. The filter frame 9 is shaped like an ellipse and can be moved by pressing it against the elliptical surface. The filter frame 9 is slidably connected to the inner wall of the support box 1. The filter frame 9 mainly connects to and supports the entire filter frame 16. The filter frame 16 is detachably installed on the inner wall of the filter frame 9. The filter frame 16 is equipped with a filter screen, which can block large impurities in the concrete. The bottom end of the filter frame 9 is fixedly connected to a collar 10. The left end of the collar 10 is elastically connected to the support box 1 through a return spring 11. The inner wall of the support box 1 is fixedly connected to a fixing tube 12. The fixing tube 12 mainly supports and guides the collar 10 and the filter frame 9. The inner wall of the filter frame 9 is equipped with a limit component.

[0032] The transmission assembly includes pulleys 4, and there are two sets of pulleys 4. The two sets of pulleys 4 are connected by a belt 5. The pulleys 4 are fixedly connected to the outer walls of the motor 3 and the shaft 6 respectively. One set of pulleys 4 is fixed to the output end of the motor 3, and the other set of pulleys 4 is fixed to the shaft 6. When the motor 3 drives one set of pulleys 4 to rotate, it will drive the other set of pulleys 4 and the shaft 6 to rotate through the belt.

[0033] Reference Figure 1 , Figure 3 and Figure 4 The limiting component includes a stop block 13, which is slidably connected to the inner wall of the filter frame 9. The filter frame 9 has a slot, which allows the stop block 13 to move along the slot. There are two sets of stop blocks 13, which are elastically connected by a positioning spring 14. One end of the positioning spring 14 is fixed to the upper stop block 13, and the other end of the positioning spring 14 is fixed to the lower stop block 13. When the stop blocks 13 separate, they will stretch the positioning spring 14. When resetting, the reverse elastic force of the positioning spring 14 will bring the stop block 13 back to its original position. A guide rod 15 is slidably connected to the inner wall of the stop block 13. The guide rod 15 mainly provides vertical guidance for the stop block 13 and has a certain frictional force. The guide rod 15 is fixedly connected to the inner wall of the filter frame 9. The outer wall of the stop block 13 is in contact with the outer wall of the filter frame 16. The two sets of stop blocks 13 are symmetrically arranged on the inner wall of the filter frame 9.

[0034] Reference Figure 1 - Figure 3The left end of the collar 10 is fixedly connected to one end of the return spring 11. The return spring 11 is in a stretched state at this time. When resetting, the return spring 11 uses its reverse elastic force to move the collar 10 to the left. The other end of the return spring 11 is fixedly connected to the inner wall of the left end of the support box 1. The collar 10 is slidably connected to the outer wall of the fixed tube 12. The stirring rod 7 passes through and is rotatably connected to the inner wall of the support box 1. The support box 1 has a support frame that can support the stirring rod 7. The outer wall of the protrusion 8 is in contact with the side wall of the filter frame 9.

[0035] Working principle: When concrete needs to be screened, simply transport the concrete into the support box 1 and start the motor 3 to drive a set of pulleys 4 and the mixing rod 7 to rotate. The pulleys 4 drive the belt 5 to drive another set of pulleys 4 to rotate the shaft 6. The shaft 6 drives the protrusion 8 to rotate. When the protrusion 8 is not in contact with the filter frame 9, the elastic force of the return spring 11 will cause the collar 10 and the filter frame 9 to suddenly move to the left. When the protrusion 8 contacts the filter frame 9, it will slowly squeeze the filter frame 9 to move to the right and stretch the return spring 11. During the use of the filter frame 9, the filter frame 16 will move laterally continuously, which will increase the screening effect and avoid the filter screen from being fixed and easily blocked. During the screening process, the mixing rod 7 will continuously stir to ensure that the concrete does not solidify and affect subsequent screening.

[0036] When the filter screen on the filter frame 16 needs to be replaced, simply stop the motor 3 and then manually move the stop block 13 to separate them. At this time, the positioning spring 14 is in a stretched state, allowing the stop block 13 to retract into the inner wall of the filter frame 9. Then, manually remove the filter frame 16 from the filter frame 9. When installing a new filter frame 16, simply insert the filter frame 16 into the filter frame 9, then release the stop block 13. The reverse elastic force of the positioning spring 14 will cause the stop block 13 to return to its original position, allowing the stop block 13 to block the filter frame 16 and prevent it from being removed from the filter frame 9.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for filtering coarse impurities in ready-mixed concrete, comprising a support box (1), characterized in that: The top of the support box (1) is fixedly connected to a bracket (2), a motor (3) is provided in the middle of the bracket (2), a rotating shaft (6) is provided at the output end of the motor (3) through a transmission assembly, a stirring rod (7) is fixedly connected at the output end of the motor (3), a protrusion (8) is fixedly connected to the outer wall of the rotating shaft (6), a filter frame (9) is slidably connected to the inner wall of the support box (1), a filter frame (16) is detachably installed on the inner wall of the filter frame (9), a collar (10) is fixedly connected to the bottom end of the filter frame (9), the left end of the collar (10) is elastically connected to the support box (1) through a return spring (11), a fixing tube (12) is fixedly connected to the inner wall of the support box (1), and a limit assembly is provided on the inner wall of the filter frame (9). The transmission assembly includes pulleys (4), and there are two sets of pulleys (4). The two sets of pulleys (4) are connected by a belt (5). The pulleys (4) are fixedly connected to the outer walls of the motor (3) and the shaft (6).

2. The premixed concrete coarse impurity filtering device according to claim 1, characterized in that: The limiting component includes a stop (13), which is slidably connected to the inner wall of the filter frame (9). There are two sets of the stop (13), which are elastically connected to each other by a positioning spring (14). A guide rod (15) is slidably connected to the inner wall of the stop (13).

3. The premixed concrete coarse impurity filtering device according to claim 2, characterized in that: The guide rod (15) is fixedly connected to the inner wall of the filter frame (9).

4. The premixed concrete coarse impurity filtering device according to claim 2, characterized in that: The outer wall of the baffle (13) is in contact with the outer wall of the filter frame (16).

5. The premixed concrete coarse impurity filtering device according to claim 2, characterized in that: The two sets of baffles (13) are symmetrically arranged on the inner wall of the filter frame (9).

6. The premixed concrete coarse impurity filtering device according to claim 1, characterized in that: The left end of the collar (10) is fixedly connected to one end of the return spring (11), and the other end of the return spring (11) is fixedly connected to the inner wall of the left end of the support box (1).

7. The premixed concrete coarse impurity filtering device according to claim 1, characterized in that: The collar (10) is slidably connected to the outer wall of the fixed tube (12).

8. The premixed concrete coarse impurity filtering device according to claim 1, characterized in that: The stirring rod (7) is rotatably connected to the inner wall of the support box (1), and the outer wall of the protrusion (8) is in contact with the side wall of the filter frame (9).

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