Concrete raw material particle diameter high-precision screening device

Abstract

The utility model provides a concrete raw material particle diameter high-precision screening device, relates to the technical field of screening devices, and aims to solve the problems that due to the fact that a screen vibration principle is adopted in an existing screening device, but the shapes of concrete raw material particles are uncertain, screen holes are prone to being blocked by large-particle raw materials after long-time use, and the screening effect is poor. The raw material particle screening device comprises a screening plate, a plurality of screening holes are formed in the screening plate, the screening holes are formed in the screening plate, and the screening holes are formed in the screening plate. The bottom of the sieve plate is slidably connected with a displacement plate, and the displacement plate is slidably connected into the bottom sliding groove. The interior of the displacement plate is slidably connected with a material ejecting head; and the bottom of the displacement plate is in threaded connection with a pull rod. Through cooperation of the sieve plate, the displacement plate and the material ejecting head, when the displacement plate slides in the bottom sliding groove, the material ejecting head can conduct auxiliary cleaning on materials in the sieve holes, the materials are prevented from blocking the sieve holes, the smoothness of the sieve holes is guaranteed, and therefore the screening precision is guaranteed, and concrete raw material particles can be accurately screened according to the diameter.

Description

Technical Field

[0001] This utility model belongs to the field of screening device technology, and more specifically, it relates to a high-precision screening device for the particle diameter of concrete raw materials. Background Technology

[0002] In modern construction engineering, concrete is a widely used building material, and its quality is directly related to the stability and durability of building structures. The quality of concrete largely depends on the quality of its raw materials, among which the size and uniformity of the particle diameter are key factors affecting concrete performance. Traditional concrete raw material screening devices have many limitations. For example, common vibrating screens rely on simple vibration principles to screen particles through a screen. As the construction industry's requirements for concrete quality continue to increase, a high-precision screening device is needed to meet the needs of various complex construction projects.

[0003] Based on existing technology, it has been found that existing screening devices use the principle of screen vibration. However, due to the irregular shape of concrete raw material particles, the screen holes are easily blocked by large raw material particles after long-term use. Moreover, the blocked raw material particles are difficult to clean because they are stuck in the screen holes, thus affecting the normal use of the screen. Summary of the Invention

[0004] To address the aforementioned technical problems, this disclosure relates to a high-precision screening device for concrete raw material particle diameter. This device solves the problem that existing screening devices use the principle of screen vibration, but due to the irregular shape of concrete raw material particles, the screen holes are easily clogged by large particles after long-term use. Furthermore, the clogged particles are difficult to clean because they are stuck in the screen holes, thus affecting the normal use of the screen.

[0005] In a first aspect, this disclosure provides a high-precision screening device for the particle diameter of concrete raw materials, achieved through the following specific technical means:

[0006] A high-precision screening device for concrete raw material particle diameter includes: a support frame and a telescopic cylinder; a material ejector plate is fixed to the top of the support frame by screws; a support plate frame is slidably connected to the outside of the material ejector plate, and the support plate frame is connected to the telescopic cylinder; a stabilizing block is provided on the inner side of the support plate frame, and the stabilizing block is slidably connected in a side groove; a fixed plate frame is fixed to the inner side of the support plate frame by screws; two sets of inclined guide plates are provided inside the fixed plate frame; a screen plate is fixed to the bottom of the fixed plate frame; a bottom sliding groove connected to the screen holes is opened at the bottom of the screen plate; a displacement plate is slidably connected to the bottom of the screen plate, and the displacement plate is slidably connected in the bottom sliding groove; a top material head is slidably connected inside the displacement plate; and a pull rod is threadedly connected to the bottom of the displacement plate.

[0007] Optionally, the bottom of the support frame is provided with four sets of casters; the top of the support frame is provided with four sets of buffer springs.

[0008] Optionally, the ejector plate is configured as a square plate structure, with a rectangular groove at the top and a square fixing plate at the bottom; a telescopic cylinder is provided at the bottom of the ejector plate; and two sets of rectangular side grooves are provided on the outer wall of the ejector plate.

[0009] Optionally, the support frame is connected to the top of the buffer spring, and the support frame is configured as a U-shaped frame structure, with two sets of rectangular rods at the top of the support frame.

[0010] Optionally, the fixed plate frame is configured as a rectangular frame structure, and a rectangular connecting plate is provided on the outer wall of the fixed plate frame.

[0011] Optionally, the bottom of the sieve plate is provided with two sets of T-shaped sliding grooves; the displacement plate is configured as a U-shaped structure, with cylindrical blocks equidistantly arranged on the inner side of the displacement plate, and frustum-shaped grooves respectively opened inside the cylindrical blocks of the displacement plate; a rectangular block is provided at the bottom of the displacement plate, and threaded through holes are provided on the rectangular block.

[0012] Optionally, the top material head is configured as a frustum-shaped structure, and a strong spring is provided at the bottom of the top material head.

[0013] The high-precision screening device for concrete raw material particle diameter proposed in this utility model has the following beneficial effects:

[0014] 1. In this device, through the cooperation of the screen plate, the displacement plate, and the top material head, when the displacement plate slides in the bottom chute, the top material head can assist in cleaning the material in the screen holes, preventing the material from clogging the screen holes and ensuring the unobstructed flow of the screen holes, thereby ensuring screening accuracy and enabling precise screening of concrete raw material particle diameter. The bottom of the displacement plate is threaded with a pull rod, and the movement of the displacement plate can be easily controlled by rotating the pull rod. Then, the top material head is used to clean the screen holes of the screen plate, making the maintenance and cleaning of the screen plate more convenient and reducing equipment maintenance costs.

[0015] 2. In this device, the unloading plate is connected to the support frame and the telescopic cylinder. When the telescopic cylinder is working, it can push the support frame to slide on the unloading plate, thereby driving the fixed plate frame, screen plate and other components to move, which facilitates the unloading of the screened material and improves work efficiency. At the same time, the two sets of inclined guide plates set inside the fixed plate frame can guide the concrete raw materials to be evenly distributed in the fixed plate frame, so that the material is more evenly dispersed on the screen plate, avoiding material accumulation and improving the screening effect. Attached Figure Description

[0016] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. The drawings are provided for a better understanding of the invention and are not intended to limit the scope of this disclosure. In the drawings, the same or similar reference numerals denote the same or similar elements, wherein:

[0017] Figure 1 This is a schematic diagram of the three-dimensional assembly structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the three-dimensional assembly structure of this utility model from a bottom view.

[0019] Figure 3 This is an exploded structural diagram of the present invention.

[0020] Figure 4 This is an exploded bottom view structural diagram of this utility model.

[0021] Figure 5 This is a partial cross-sectional structural diagram of the present invention.

[0022] Figure 6 This utility model is composed of Figure 5 A schematic diagram of the enlarged structure of part A.

[0023] Reference numerals: 1. Support frame; 101. Moving wheel; 102. Buffer spring; 2. Unloading plate; 201. Telescopic cylinder; 202. Side chute; 203. Support plate frame; 204. Stabilizing block; 3. Fixed plate frame; 301. Guide plate; 4. Screen plate; 401. Bottom chute; 402. Displacement plate; 403. Top material head; 404. Pull rod. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] Example 1: As shown in the attached document Figure 1 To be continued Figure 6As shown: This utility model provides a high-precision screening device for concrete raw material particle diameter, including: a support frame 1 and a telescopic cylinder 201; a material discharge plate 2 is fixed to the top of the support frame 1 by screws; the material discharge plate 2 is used to guide the screened raw material to assist in the conveying and collection of concrete raw materials; a support plate frame 203 is slidably connected to the outside of the material discharge plate 2, and the support plate frame 203 is connected to the telescopic cylinder 201; the support plate frame 203 is used to support the fixed plate frame 3 and the screen plate 4 to maintain stability during the screening process; a stabilizing block 204 is provided on the inner side of the support plate frame 203, and the stabilizing block 204 is slidably connected in the side binding groove 202; the stabilizing block 204 is used to assist in constraining the support plate frame 203 to help maintain its stability; a fixed plate frame 3 is fixed to the inner side of the support plate frame 203 by screws; two sets of inclined guide plates 301 are provided inside the fixed plate frame 3; the guide plates 301 are used to guide the remaining raw material in the fixed plate frame 3 to discharge. The bottom of the fixed plate frame 3 is fixedly connected to a screen plate 4; the screen plate 4 is used to screen concrete raw materials; the bottom of the screen plate 4 is provided with a bottom sliding groove 401 connected to the screen holes; the bottom sliding groove 401 is used to assist the sliding of the displacement plate 402 to facilitate the removal of raw materials in the screen holes of the screen plate 4; the bottom of the screen plate 4 is slidably connected to the displacement plate 4, and the displacement plate 402 is slidably connected in the bottom sliding groove 401; the displacement plate 402 is used to remove raw materials stuck in the screen holes of the screen plate 4 through the cylindrical block during the movement; the inside of the displacement plate 402 is slidably connected to a top material head 403; the top material head 403 is used to remove raw materials that cannot be removed by the cylindrical block of the displacement plate 402 under the action of a strong spring; the bottom of the displacement plate 402 is threadedly connected to a pull rod 404; the pull rod 404 is used to pull the displacement plate 402 to remove raw materials while moving back and forth.

[0026] Example 2: Based on Example 1, as shown in the appendix Figure 1 To be continued Figure 6As shown, the bottom of the support frame 1 is provided with four sets of movable wheels 101; the support frame 1 is used to assist in the installation and fixation of other structures of the device, and at the same time, it works with the movable wheels 101 to assist the overall movement of the device; the top of the support frame 1 is provided with four sets of buffer springs 102; the buffer springs 102 are used to provide auxiliary buffering for the support plate frame 203 to help maintain stability during the screening process; the unloading plate 2 is set as a square plate structure, the top of the unloading plate 2 is provided with a rectangular groove, and the bottom of the unloading plate 2 is provided with a square fixing plate; the bottom of the unloading plate 2 is provided with a telescopic cylinder 201; the telescopic cylinder 201 is used to control the telescopic adjustment of the support plate frame 203 to assist in the screening of raw materials; the outer wall of the unloading plate 2 is provided with two sets of rectangular side grooves 202; the side grooves 2 02 is used to constrain the support frame 203 in conjunction with the stabilizing block 204 to maintain its stability; the support frame 203 is connected to the top of the buffer spring 102, the support frame 203 is set as a U-shaped frame structure, and the top of the support frame 203 is provided with two sets of rectangular rods; the fixed plate frame 3 is set as a rectangular frame structure, and the outer wall of the fixed plate frame 3 is provided with a rectangular connecting plate; the bottom of the screen plate 4 is provided with two sets of T-shaped sliding grooves; the displacement plate 402 is set as a U-shaped structure, and cylindrical blocks are provided at equal intervals on the inner side of the displacement plate 402, and the cylindrical blocks of the displacement plate 402 are respectively provided with frustum-shaped grooves, and the bottom of the displacement plate 402 is provided with a rectangular block, and the rectangular block is provided with a threaded through hole; the top material head 403 is set as a frustum-shaped structure, and the bottom of the top material head 403 is provided with a strong spring.

[0027] The specific usage and function of this embodiment are as follows:

[0028] In this invention, the concrete raw material to be screened is poured into the fixed plate frame 3, and the telescopic cylinder 201 is activated. The telescopic cylinder 201 starts working and pushes the support plate frame 203 to reciprocate. Since the support plate frame 203 is slidably connected to the discharge plate 2, and the stabilizing block 204 plays a stabilizing and guiding role in the side guide groove 202, the support plate frame 203 will slide smoothly along the discharge plate 2. At the same time, the support plate frame 203 drives the fixed plate frame 3, the screen plate 4 and other components to move together. During the movement, the concrete raw material is screened on the screen plate 4. The raw material that meets the particle diameter requirements falls through the screen holes of the screen plate 4, while the raw material that does not meet the requirements remains on the screen plate 4. During the screening process, the four sets of buffer springs 102 at the top of the support frame 1 play a buffering and shock-absorbing role, reducing the impact of device movement and vibration on the screening accuracy and ensuring that the screening work is carried out stably.

[0029] As the screening process progresses, the screen holes may become clogged. In this case, the operator rotates the pull rod 404. Since the pull rod 404 is threadedly connected to the bottom of the displacement plate 402, the rotation of the pull rod 404 causes the displacement plate 402 to move within the bottom groove 401 at the bottom of the screen plate 4. As the displacement plate 402 moves, the ejector head 403 inside, under the action of a strong spring at the bottom, clears the clogged material from the screen holes. The frustum-shaped structure of the ejector head 403 effectively pushes the clogged material out of the screen holes, ensuring unobstructed flow and maintaining efficient screening operations.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A high-precision screening device for the particle diameter of concrete raw materials, comprising: Support frame (1), telescopic cylinder (201); characterized in that: The top of the support frame (1) is fixed with a material ejector plate (2) by screws; a support plate frame (203) is slidably connected to the outside of the material ejector plate (2), and the support plate frame (203) is connected to the telescopic cylinder (201); a stabilizing block (204) is provided on the inner side of the support plate frame (203), and the stabilizing block (204) is slidably connected in the side beam groove (202); a fixed plate frame (3) is fixed on the inner side of the support plate frame (203) by screws; two sets of fixed plate frames (3) are provided inside the fixed plate frame (3). An inclined guide plate (301); a screen plate (4) is fixedly connected to the bottom of the fixed plate frame (3); a bottom sliding groove (401) connected to the screen hole is opened at the bottom of the screen plate (4); a displacement plate (402) is slidably connected to the bottom of the screen plate (4), and the displacement plate (402) is slidably connected in the bottom sliding groove (401); a top material head (403) is slidably connected inside the displacement plate (402); a pull rod (404) is threadedly connected to the bottom of the displacement plate (402).

2. The high-precision screening device for concrete raw material particle diameter according to claim 1, characterized in that: The bottom of the support frame (1) is provided with four sets of moving wheels (101); the top of the support frame (1) is provided with four sets of buffer springs (102).

3. The high-precision screening device for concrete raw material particle diameter according to claim 1, characterized in that: The ejector plate (2) is configured as a square plate structure. The top of the ejector plate (2) is provided with a rectangular groove, and the bottom of the ejector plate (2) is provided with a square fixing plate. The bottom of the ejector plate (2) is provided with a telescopic cylinder (201). The outer wall of the ejector plate (2) is provided with two sets of rectangular side binding grooves (202).

4. The high-precision screening device for concrete raw material particle diameter according to claim 1, characterized in that: The support frame (203) is connected to the top of the buffer spring (102). The support frame (203) is configured as a U-shaped frame structure, and the top of the support frame (203) is provided with two sets of rectangular rods.

5. The high-precision screening device for concrete raw material particle diameter according to claim 1, characterized in that: The fixed plate frame (3) is configured as a rectangular frame structure, and a rectangular connecting plate is provided on the outer wall of the fixed plate frame (3).

6. The high-precision screening device for concrete raw material particle diameter according to claim 1, characterized in that: The bottom of the sieve plate (4) is provided with two sets of T-shaped sliding grooves; the displacement plate (402) is configured as a U-shaped structure, and cylindrical blocks are provided at equal intervals on the inner side of the displacement plate (402), and frustum-shaped grooves are respectively opened in the cylindrical blocks of the displacement plate (402), and rectangular blocks are provided at the bottom of the displacement plate (402), and threaded through holes are provided on the rectangular blocks.

7. The high-precision screening device for concrete raw material particle diameter according to claim 1, characterized in that: The top feed head (403) is configured as a frustum-shaped structure, and a strong spring is provided at the bottom of the top feed head (403).

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