Material screening device for steel slag pavement construction

Abstract

The utility model relates to the technical field of material screening devices, in particular to a material screening device for steel slag pavement construction, which comprises a screen cage and a screen mesh, the screen mesh is movably inserted in the screen cage, the surface of the screen mesh is provided with an inserting groove, the surface of the screen cage is provided with an inserting rod mounting groove, one end of an inserting rod is movably inserted in the inserting rod mounting groove, and the other end of the inserting rod is provided with a connecting rod. The other end of the inserting rod is movably inserted into the inserting groove; the screen mesh has the beneficial effects that when the screen mesh needs to be replaced, the original screen mesh can be detached from the inner wall of the screen cage only by pulling the pull rod outwards and retreating the inserting rods from the inserting grooves, at the moment, the springs are compressed by the inserting rods and the spring stop blocks, the screen mesh with the needed hole diameter is placed into the inner wall of the screen cage, and the inserting grooves are aligned with the inserting rod mounting grooves, so that the screen mesh can be replaced. And then the pull rod is loosened, one end of the inserting rod is pushed into the inserting groove again through the spring, and then the screen can be rapidly replaced, so that the requirement for the number of the screen cages is greatly reduced, and a large number of materials needed for manufacturing the screen cages can be saved.

Description

Technical Field

[0001] This utility model relates to the technical field of material screening devices, specifically a material screening device for steel slag pavement construction. Background Technology

[0002] When steel slag is used as a road construction material, screening is a key pretreatment step that directly affects the quality, durability, and environmental performance of the road surface. The design of steel slag screening devices must take into account efficiency, particle classification, and impurity removal capabilities. During the construction of steel slag pavement, material screening is usually carried out by a vibrating screening device.

[0003] In the prior art, patent application CN202420203843.0 discloses a vibrating screening device for feed production, comprising: a lower screen cage and an upper screen cage. A positioning rod is fixed to the top of the lower screen cage, and a positioning groove is opened at the bottom of the upper screen cage. The positioning rod is movably inserted into the positioning groove. A limit block mounting groove is opened on the surface of the positioning rod, and a limit block is movably inserted into the limit block mounting groove. The beneficial effect is that by fixing multiple sets of positioning rods to the top of the lower screen cage, opening multiple sets of positioning grooves at the bottom of the upper screen cage, opening limit block mounting grooves on the surface of the positioning rods, and opening limit grooves on the inner wall of the positioning grooves, the installation of the lower and upper screen cages can be completed when the limit block simultaneously extends into the limit block mounting groove and the limit groove. When the limit block exits from the limit groove, the disassembly of the lower and upper screen cages can be completed. This makes the installation and disassembly of the lower and upper screen cages convenient and requires no third-party tools.

[0004] However, when using existing vibrating screening devices for feed production as screening devices for steel slag road construction materials, it is often necessary to prepare various screens with different apertures during the screening process of steel slag materials. In existing screening devices, the screen and the screen cage are integrally formed, so preparing multiple screens requires preparing multiple screen cages at the same time, resulting in a waste of screen cage production materials. Utility Model Content

[0005] The purpose of this invention is to provide a material screening device for steel slag pavement construction to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a material screening device for steel slag pavement construction, comprising: a screen cage and a screen mesh, wherein the screen mesh is movably inserted into the screen cage, an insertion groove is provided on the surface of the screen mesh, and an insertion rod mounting groove is provided on the surface of the screen cage, wherein one end of an insertion rod is movably inserted into the insertion rod mounting groove, and the other end of the insertion rod is movably inserted into the insertion groove.

[0007] Preferably, the plug rods are provided in several groups, and the several groups of plug rods are arranged in a circumferential array about the screen.

[0008] Preferably, a mounting base is fixed on the outer wall of the screen cage, a spring stop is movably inserted into the mounting base, a pull rod is movably inserted into the surface of the spring stop, and one end of the pull rod extends into the insertion rod mounting groove and is fixed to the surface of the insertion rod.

[0009] Preferably, a spring is fitted on the rod body of the pull rod, with one end of the spring abutting against the surface of the spring stop and the other end of the spring abutting against the surface of the plug rod.

[0010] Preferably, a first pin hole is formed on the surface of the mounting base, a second pin hole is formed on the surface of the spring stop, and a sliding groove is formed on the surface of the pull rod. A pin is movably inserted into the first pin hole and the second pin hole, and the pin is slidably connected in the sliding groove.

[0011] Preferably, a counterweight is fixed to the top of the pin.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model proposes a material screening device for steel slag pavement construction, which changes the screen cage and screen mesh into a separate design. Several sets of insertion rod mounting slots are opened on the inner wall of the screen cage, and several sets of insertion slots are opened on the surface of the screen mesh. One end of the insertion rod is inserted into the mounting slot, and the other end is inserted into the insertion slot, thus confining the screen mesh to the inner wall of the screen cage. When the screen mesh needs to be replaced, simply pull the lever outwards to disengage the insertion rod from the insertion slot, allowing the original screen mesh to be removed from the inner wall of the screen cage. At this time, the spring is compressed by the insertion rod and the spring stop. A screen mesh of the required aperture is placed into the inner wall of the screen cage, aligning each set of insertion slots with each set of insertion rod mounting slots. Then, the lever is released, and the spring pushes one end of the insertion rod back into the insertion slot, completing the quick replacement of the screen mesh. This greatly reduces the number of screen cages required, saving a significant amount of material needed to manufacture screen cages. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic cross-sectional view of the present invention.

[0016] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the chute;

[0018] Figure 5 for Figure 4Enlarged schematic diagram of the structure at point B.

[0019] In the diagram: 1. Screen cage; 2. Screen mesh; 3. Insertion groove; 4. Insertion rod mounting groove; 5. Insertion rod; 6. Pull rod; 7. Spring; 8. Mounting base; 9. Spring stop; 10. First pin hole; 11. Second pin hole; 12. Slide groove; 13. Pin; 14. Counterweight. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Example 1: Please refer to Figures 1 to 5 This utility model provides a technical solution: a material screening device for steel slag pavement construction, comprising: a screen cage 1 and a screen 2, wherein the screen 2 is movably inserted into the screen cage 1, and an insertion groove 3 is provided on the surface of the screen 2. An insertion rod mounting groove 4 is provided on the surface of the screen cage 1, and one end of an insertion rod 5 is movably inserted into the insertion rod mounting groove 4, while the other end of the insertion rod 5 is movably inserted into the insertion groove 3. Several sets of insertion rods 5 are provided, and the several sets of insertion rods 5 are arranged in a circumferential array about the screen 2. An installation seat 8 is fixed on the outer wall of the screen cage 1, and a spring stop 9 is movably inserted into the installation seat 8. A pull rod 6 is movably inserted into the surface of the spring stop 9, one end of the pull rod 6 extends into the insertion rod mounting groove 4 and is fixed to the surface of the insertion rod 5, and a spring 7 is sleeved on the rod body of the pull rod 6. One end of the spring 7 abuts against the surface of the spring stop 9, and the other end of the spring 7 abuts against the surface of the insertion rod 5.

[0022] In practical use, this steel slag pavement construction material screening device, based on existing technology, modifies the screen cage 1 and screen 2 into a separate design. Several sets of insertion rod mounting slots 4 are opened on the inner wall of the screen cage 1, and several sets of insertion slots 3 are opened on the surface of the screen 2. One end of the insertion rod 5 is inserted into the insertion rod mounting slot 4, and the other end of the insertion rod 5 is inserted into the insertion slot 3, thereby limiting the screen 2 to the inner wall of the screen cage 1. When it is necessary to replace the screen 2, simply pull the pull rod 6 outwards to allow the insertion rod to... 5. Once the screen 2 is removed from the inner wall of the screen cage 1, it can be removed from the insertion slot 3. At this time, the spring 7 is compressed by the insertion rod 5 and the spring stop 9. Place the screen 2 with the required aperture into the inner wall of the screen cage 1 and align each set of insertion slots 3 with each set of insertion rod mounting slots 4. Then release the pull rod 6, and the spring 7 will push one end of the insertion rod 5 back into the insertion slot 3, thus completing the quick replacement of the screen 2. This greatly reduces the number of screen cages 1 required and can save a lot of materials needed to make screen cages 1.

[0023] Example 2: Based on Example 1, in order to replace the spring 7, a first pin hole 10 is provided on the surface of the mounting base 8, a second pin hole 11 is provided on the surface of the spring stop 9, and a sliding groove 12 is provided on the surface of the pull rod 6. A pin 13 is movably inserted into the first pin hole 10 and the second pin hole 11. The pin 13 is slidably connected in the sliding groove 12, and a counterweight 14 is fixed to the top of the pin 13.

[0024] During normal use, pin 13 is simultaneously inserted into the first pin hole 10 and the second pin hole 11, thereby limiting the spring stop 9 in the mounting base 8. When the pull rod 6 drives the connecting rod 5 to fully retract into the connecting rod mounting groove 4, the spring 7 can be compressed by the connecting rod 5 and the spring stop 9. At the same time, pin 13 is slidably connected in the sliding groove 12 opened on the surface of the pull rod 6, which can prevent pin 13 from obstructing the pulling of the pull rod 6. Meanwhile, the counterweight 14 fixed to the top of pin 13 presses against the top of pin 13, which can prevent pin 13 from coming out of the first pin hole 10 and the second pin hole 11 during vibration. When it is necessary to replace the spring 7, pin 13 is inserted into the first pin hole 10 and the second pin hole 11. Pin 13 is pulled out from the first pin hole 10 and the second pin hole 11, and then the pull rod 6 is pulled outward. The pull rod 6 drives the plug rod 5 to move in the same direction. The plug rod 5 pushes the spring 7 to move in the same direction. The spring 7 pushes the spring stop 9 out of the mounting base 8, and then the spring stop 9 can be removed from the pull rod 6. Then the old spring 7 can be removed from the pull rod 6. The new spring 7 is put on the pull rod 6. Then the spring stop 9 is put back on the rod body of the pull rod 6 and the spring stop 9 is reinserted into the mounting base 8. Pin 13 is reinserted into the first pin hole 10, the second pin hole 11 and the slide groove 12 to complete the replacement of spring 7.

[0025] In practical use, this steel slag pavement construction material screening device, based on existing technology, modifies the screen cage 1 and screen 2 into a separate design. Several sets of insertion rod mounting slots 4 are opened on the inner wall of the screen cage 1, and several sets of insertion slots 3 are opened on the surface of the screen 2. One end of the insertion rod 5 is inserted into the insertion rod mounting slot 4, and the other end of the insertion rod 5 is inserted into the insertion slot 3, thereby confining the screen 2 to the inner wall of the screen cage 1. When it is necessary to replace the screen 2, simply pull the pull rod 6 outwards to allow the insertion rod 5 to retract from the insertion slot 3, thus removing the original screen 2. The screen 2 is removed from the inner wall of the screen cage 1. At this time, the spring 7 is compressed by the plug rod 5 and the spring stop 9. The screen 2 with the required aperture is placed into the inner wall of the screen cage 1 and the plug grooves 3 are aligned with the plug rod mounting grooves 4. Then, the pull rod 6 is released and the spring 7 pushes one end of the plug rod 5 back into the plug groove 3, thus completing the quick replacement of the screen 2. This greatly reduces the number of screen cages required and saves a lot of material needed to manufacture the screen cage 1. During normal use, the pin 13 is simultaneously inserted into the first pin hole 10 and the second pin hole 11, thereby limiting the spring stop 9. In the mounting base 8, when the pull rod 6 drives the connector rod 5 to fully retract into the connector rod mounting groove 4, the spring 7 can be compressed by the connector rod 5 and the spring stop 9. At the same time, the pin 13 is slidably connected in the groove 12 opened on the surface of the pull rod 6, which can prevent the pin 13 from obstructing the pulling of the pull rod 6. Meanwhile, the counterweight 14 fixed to the top of the pin 13 presses on the top of the pin 13, which can prevent the pin 13 from coming out of the first pin hole 10 and the second pin hole 11 during vibration. When it is necessary to replace the spring 7, the pin 13 is pulled out from the first pin hole 10 and the second pin hole 11. Then pull the lever 6 outwards. The lever 6 drives the plug rod 5 to move in the same direction. The plug rod 5 pushes the spring 7 to move in the same direction. The spring 7 pushes the spring stop 9 out of the mounting base 8. Then the spring stop 9 can be removed from the lever 6. Then the old spring 7 can be removed from the lever 6. The new spring 7 is put on the lever 6. Then the spring stop 9 is put back on the lever 6 and inserted back into the mounting base 8. The pin 13 is reinserted into the first pin hole 10, the second pin hole 11 and the slide groove 12 to complete the replacement of the spring 7.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A material screening device for steel slag pavement construction, comprising: The sieve cage (1) and the sieve mesh (2) are characterized in that: the sieve mesh (2) is movably inserted into the sieve cage (1), the surface of the sieve mesh (2) is provided with an insertion groove (3), the surface of the sieve cage (1) is provided with an insertion rod mounting groove (4), one end of the insertion rod (5) is movably inserted into the insertion rod mounting groove (4), and the other end of the insertion rod (5) is movably inserted into the insertion groove (3).

2. The material screening device for steel slag pavement construction according to claim 1, characterized in that: The plug rods (5) are provided in several groups, and the several groups of plug rods (5) are arranged in a circular array about the screen (2).

3. The material screening device for steel slag pavement construction according to claim 2, characterized in that: An installation base (8) is fixed on the outer wall of the screen cage (1). A spring stop (9) is movably inserted into the installation base (8). A pull rod (6) is movably inserted into the surface of the spring stop (9). One end of the pull rod (6) extends into the insertion rod mounting groove (4) and is fixed to the surface of the insertion rod (5).

4. The material screening device for steel slag pavement construction according to claim 3, characterized in that: A spring (7) is fitted on the rod body of the pull rod (6). One end of the spring (7) abuts against the surface of the spring stop (9), and the other end of the spring (7) abuts against the surface of the plug rod (5).

5. The material screening device for steel slag pavement construction according to claim 4, characterized in that: The mounting base (8) has a first pin hole (10) on its surface, the spring stop (9) has a second pin hole (11) on its surface, and the pull rod (6) has a sliding groove (12) on its surface. A pin (13) is movably inserted into the first pin hole (10) and the second pin hole (11), and the pin (13) is slidably connected in the sliding groove (12).

6. The material screening device for steel slag pavement construction according to claim 5, characterized in that: A counterweight (14) is fixed to the top of the pin (13).

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