Screening device for concrete production

Abstract

The utility model relates to the technical field of screening devices, in particular to a screening device for concrete production, which comprises a bottom plate, and a connecting box with an opening at the bottom is arranged above the bottom plate. The motor continuously works to drive the first filter screen and the second filter screen to circularly move up and down, a user puts raw materials into the connecting box through the feeding hopper, and large-particle materials are retained at the top of the first filter screen and fall into the corresponding first collecting box; medium particle materials penetrate through the first filter screen to fall on the top of the second filter screen, the medium particle materials fall into the corresponding first collecting box, small particle materials penetrate through the second filter screen to fall into the second collecting box, when the materials are screened, continuous multi-stage screening can be achieved, the first filter screen and the second filter screen can vibrate circularly, and the screening efficiency is improved. And large-particle materials are not prone to blocking meshes, raw materials are screened thoroughly, and the screening efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of screening devices, in particular to a screening device for concrete production. Background Art

[0002] Concrete is a building material composed of a variety of materials, including cement, sand and gravel, etc. Before the various raw materials are mixed into concrete, they need to be screened using a functional screening device, mainly to screen out large particles. The screen installed in the screening device can filter out large particles, thereby achieving the purpose of screening.

[0003] However, some screening devices for concrete production cannot achieve continuous multi-stage screening when screening materials, and the filter screen in the screening box cannot vibrate cyclically, which easily leads to large particles clogging the mesh holes, incomplete raw material screening, and low screening efficiency. Therefore, we propose a screening device for concrete production to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a screening device for concrete production to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a screening device for concrete production, comprising a bottom plate, a connection box with an opening at the bottom is provided above the bottom plate, a first filter screen and a second filter screen arranged obliquely are provided in the connection box, two first rectangular holes are provided on the left inner wall of the connection box, two second rectangular holes are provided on the right inner wall of the connection box, both sides of the first filter screen and the second filter screen respectively penetrate the first rectangular hole and the second rectangular hole and extend to the outside of the connection box, and the left sides of the first filter screen and the second filter screen are fixedly connected with the same circular block A rectangular block is fixedly connected to the left side of the circular block, a vertical rod is rotatably connected to the bottom of the rectangular block, a circular plate is rotatably connected to the left side of the vertical rod, an L-shaped block is fixedly connected to the left side of the connecting box, a motor is fixedly connected to the left inner wall of the L-shaped block, the output shaft end of the motor is fixedly connected to the left side of the circular plate, the top inner wall and the bottom inner wall of the circular block are fixedly connected to the same square rod, a cross block is fixedly connected to the left inner wall of the connecting box, the cross block is slidably sleeved on the outside of the square rod, and a spring is fixedly connected between the bottom of the cross block and the bottom inner wall of the circular block.

[0006] Further preferably, the spring is movably sleeved on the outside of the corresponding square rod, and two support blocks are fixedly connected to the right side of the connection box.

[0007] Further preferably, the top of the support block is in movably contact with the first collecting box, and four L-shaped rods are fixedly connected between the top of the bottom plate and the connecting box.

[0008] Further preferably, the top of the bottom plate is movably in contact with a second collecting box, and the bottom plate is connected to and fixed with a feed hopper.

[0009] Compared with the prior art, the beneficial effects of the utility model are: the continuous operation of the motor of the utility model can drive the first filter screen and the second filter screen to move up and down in a cycle, the user puts the raw materials into the connecting box through the feed hopper, the large particle materials are retained on the top of the first filter screen, the large particle materials fall into the corresponding first collecting box, the medium particle materials pass through the first filter screen and fall on the top of the second filter screen, the medium particle materials fall into the corresponding first collecting box, the small particle materials pass through the second filter screen and fall into the second collecting box, when the materials are screened, continuous multi-stage screening can be achieved, the first filter screen and the second filter screen can vibrate in a cycle, it is not easy to cause large particle materials to block the mesh holes, the raw materials are screened thoroughly, and the screening efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the main three-dimensional structure of the utility model;

[0011] Figure 2 It is a right-side stereoscopic structural schematic diagram of the utility model;

[0012] Figure 3 This is a bottom-up three-dimensional structural schematic diagram of the utility model;

[0013] Figure 4 for Figure 1 Schematic diagram of the enlarged three-dimensional structure of area A in the middle.

[0014] In the figure: 1, bottom plate; 2, connection box; 3, first filter screen; 4, second filter screen; 5, first rectangular hole; 6, second rectangular hole; 7, circular block; 8, rectangular block; 9, vertical rod; 10, circular plate; 11, L-shaped block; 12, motor; 13, square rod; 14, horizontal block; 15, spring; 16, support block; 17, first collection box; 18, L-shaped rod; 19, second collection box; 20, feed hopper. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] Example

[0017] See also Figure 1-4The utility model provides a technical solution: a screening device for concrete production, comprising a bottom plate 1, a connecting box 2 with an opening at the bottom is arranged above the bottom plate 1, a first filter screen 3 and a second filter screen 4 are arranged obliquely in the connecting box 2, two first rectangular holes 5 are arranged on the left inner wall of the connecting box 2, and two second rectangular holes 6 are arranged on the right inner wall of the connecting box 2. Both sides of the first filter screen 3 and the second filter screen 4 respectively penetrate the first rectangular hole 5 and the second rectangular hole 6 and extend to the outside of the connecting box 2, and the left side of the first filter screen 3 and the second filter screen 4 are fixedly connected with the same circular block 7, and the left side of the circular block 7 is fixedly connected with a rectangular block 8, the bottom of the rectangular block 8 is rotatably connected with a vertical rod 9, and the left side of the vertical rod 9 is rotatably connected with a circular plate 10, and the left side of the connecting box 2 is fixedly connected with an L-shaped block 11, and the motor 12 can continuously work to drive the first filter screen 3 and the second filter screen 4 to move up and down in a cycle, and the user puts the raw materials into the connecting box 2 through the feeding hopper 20, and the large particle materials are retained on the top of the first filter screen 3, and the large particle materials fall to In the corresponding first collecting box 17, the medium-sized particle material passes through the first filter screen 3 and falls on the top of the second filter screen 4, and the medium-sized particle material falls into the corresponding first collecting box 17, and the small particle material passes through the second filter screen 4 and falls into the second collecting box 19. When screening the material, continuous multi-stage screening can be achieved. The first filter screen 3 and the second filter screen 4 can vibrate cyclically, which is not easy to cause large particle materials to block the mesh. The raw material screening is thorough and the screening efficiency is high. The motor 12 is fixedly connected to the left inner wall of the L-shaped block 11 The output shaft end of the motor 12 is fixedly connected to the left side of the circular plate 10. The setting of the motor 12 has an automatic effect. The top inner wall and the bottom inner wall of the circular block 7 are fixedly connected with the same square rod 13. The left inner wall of the connecting box 2 is fixedly connected with a cross block 14. The setting of the square rod 13 has a positioning effect. The cross block 14 is slidably sleeved on the outside of the square rod 13. The bottom of the cross block 14 is fixedly connected to the bottom inner wall of the circular block 7 with the same spring 15. The setting of the spring 15 has an automatic reset effect.

[0018] In this embodiment, specifically: the spring 15 is movably sleeved on the outer side of the corresponding square rod 13, and two support blocks 16 are fixedly connected to the right side of the connection box 2, and the setting of the support block 16 plays a supporting effect;

[0019] In this embodiment, specifically: the top of the support block 16 is in active contact with the first collection box 17, and four L-shaped rods 18 are fixedly connected between the top of the bottom plate 1 and the connection box 2, and the setting of the L-shaped rods 18 plays a fixing effect;

[0020] In this embodiment, specifically: the top of the bottom plate 1 is movably contacted with a second collecting box 19, and the bottom plate 1 is connected to and fixed with a feed hopper 20, and the setting of the second collecting box 19 plays a collecting effect.

[0021] The utility model is at work: when in use, the motor 12 is started, and the motor 12 drives the circular plate 10 to rotate. The circular plate 10 rotates the first half circle to drive the vertical rod 9 to swing forward and move upward, the vertical rod 9 drives the rectangular block 8 to move upward, the rectangular block 8 drives the round-shaped block 7 to move upward, the round-shaped block 7 drives the square rod 13 to move upward, the round-shaped block 7 compresses the spring 15 during the movement, the round-shaped block 7 drives the first filter 3 and the second filter 4 to move upward, the circular plate 10 rotates the second half circle to drive the vertical rod 9 to swing backward and move downward, the spring 15 in the compressed state is reset, the elastic force of the spring 15 drives the round-shaped block 7 to move downward, the round-shaped block 7 drives the first filter 3 and the second filter 4 to move downward, and the motor 12 continues to work to drive the first filter 3 and the second filter The filter screen 4 moves up and down in a cycle, and the user puts the raw materials into the connecting box 2 through the feed hopper 20. The raw materials fall on the top of the first filter screen 3, and the large particles are retained on the top of the first filter screen 3. Under the action of gravity, the large particles fall into the corresponding first collecting box 17, and the medium particles pass through the first filter screen 3 and fall on the top of the second filter screen 4, and the medium particles are retained on the top of the second filter screen 4. Under the action of gravity, the medium particles fall into the corresponding first collecting box 17, and the small particles pass through the second filter screen 4 and fall into the second collecting box 19. When the materials are screened, continuous multi-stage screening can be achieved, the first filter screen 3 and the second filter screen 4 can vibrate in a cycle, and it is not easy to cause large particles to block the mesh. The raw materials are screened thoroughly and the screening efficiency is high.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A screening device for concrete production, comprising a bottom plate (1), characterized in that: A connection box (2) with an open bottom is provided above the bottom plate (1), and a first filter screen (3) and a second filter screen (4) are provided in the connection box (2) in an inclined manner. Two first rectangular holes (5) are provided on the left inner wall of the connection box (2), and two second rectangular holes (6) are provided on the right inner wall of the connection box (2). The first filter screen (3) and the second filter screen (4) respectively penetrate the first rectangular hole (5) and the second rectangular hole (6) on both sides and extend to the outside of the connection box (2). The left sides of the first filter screen (3) and the second filter screen (4) are fixedly connected to the same circular block (7), and the left side of the circular block (7) is fixedly connected to a rectangular block (8). The rectangular block (8) The bottom of the connecting box (2) is rotatably connected to a vertical rod (9), the left side of the vertical rod (9) is rotatably connected to a circular plate (10), the left side of the connecting box (2) is fixedly connected to an L-shaped block (11), the left inner wall of the L-shaped block (11) is fixedly connected to a motor (12), the output shaft end of the motor (12) is fixedly connected to the left side of the circular plate (10), the top inner wall and the bottom inner wall of the circular block (7) are fixedly connected to the same square rod (13), the left inner wall of the connecting box (2) is fixedly connected to a transverse block (14), the transverse block (14) is slidably sleeved on the outside of the square rod (13), and the bottom of the transverse block (14) is fixedly connected to the same spring (15) between the bottom of the transverse block (14) and the bottom inner wall of the circular block (7).

2. A screening device for concrete production according to claim 1, characterized in that: The spring (15) is movably sleeved on the outside of the corresponding square rod (13), and two support blocks (16) are fixedly connected to the right side of the connection box (2).

3. A screening device for concrete production according to claim 2, characterized in that: The top of the support block (16) is in active contact with a first collecting box (17), and four L-shaped rods (18) are fixedly connected between the top of the bottom plate (1) and the connection box (2).

4. A screening device for concrete production according to claim 3, characterized in that: The top of the bottom plate (1) is movably in contact with a second collecting box (19), and a feed hopper (20) is connected to and fixed on the bottom plate (1).

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