Sand and stone screening machine for building engineering construction

Abstract

The utility model relates to a gravel screening machine for constructional engineering construction, which belongs to the technical field of gravel screening machines and comprises a base and a screening box, a conveying mechanism is arranged on the upper surface of the base, a screening mechanism is arranged in the screening box, the conveying mechanism comprises two supporting frames arranged on the upper surface of the base, and the supporting frames are arranged on the upper surface of the base. A conveying belt is arranged at the top ends of the supporting frames on the left side and the right side, and no less than two rubber blocking strips are arranged on the outer side of the conveying belt. According to the sand and stone screening machine for building engineering construction, sand and stone needing to be screened can be placed on the left side of the upper surface of the conveying belt, the conveying belt is started to convey the sand and stone rightwards, then the sand and stone fall into a feeding barrel, and then the sand and stone are guided into a screening box through first guide inclined plates on the upper side and the lower side to be screened; and the conveying stability can be improved through no less than two rubber barrier strips, so that the labor force of material pouring can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to sandstone screening machine technical field, specifically is sandstone screening machine for construction engineering construction. BACKGROUND

[0002] With the continuous development of the construction industry, on the highway, bridge and housing construction site, sand and stone need to be separated, and then sand, lime and water are mixed together to form mixed concrete, and people start building with concrete, and the sandstone screening machine can screen sand and stone for construction engineering construction.

[0003] For example, China patent CN219129941U discloses a sandstone screening device for housing construction engineering construction, which comprises a screening box, an outlet is formed in the lower part of the front end of the screening box, a guide plate is fixedly connected to the inner lower groove wall of the outlet, a first screening mechanism is fixedly connected to the front lower box wall and the rear lower box wall in the screening box, two supporting legs are fixedly connected to the front lower end and the rear lower end of the screening box, an outlet box is fixedly connected to the middle lower end of the screening box, a second screening mechanism is installed on the middle upper end of the screening box, a feeding pipe is fixedly connected to the middle upper end of the second screening mechanism, a hopper is fixedly connected to the upper end of the feeding pipe, the feeding pipe and the second screening mechanism are in communication, and the sandstone screening device for housing construction engineering construction has the advantages that the first screening mechanism and the second screening mechanism are arranged, so that the sandstone can be screened in multiple stages, and the quality of the sandstone is improved.

[0004] Although the above-mentioned patent can screen sand and stone in multiple stages by arranging the first screening mechanism and the second screening mechanism, and improve the quality of sand and stone, when screening, sand and stone need to be poured from the upper side of the hopper, and then screened, the hopper is a certain distance from the ground, and it is laborious to pour the material, which reduces the practicability. UTILITY MODEL CONTENT

[0005] In view of the deficiencies of the prior art, the utility model provides a sandstone screening machine for construction engineering construction, which has the advantages of reducing labor for pouring material, and solves the problems of laborious pouring of material when screening, a certain distance from the ground, and reduced practicability.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a sandstone screening machine for construction engineering construction, comprising a base and a screening box, the upper surface of the base is provided with a conveying mechanism, the inside of the screening box is provided with a screening mechanism;

[0007] The conveying mechanism comprises two support frames arranged on the upper surface of the base, the top ends of the left and right support frames are provided with conveying belts, the outer sides of the conveying belts are provided with no less than two rubber blocking strips, the front and rear sides of the upper surface of the conveying belt are provided with first blocking plates, the left side of the conveying belt is provided with a second blocking plate, the left sides of the front and rear first blocking plates are fixedly connected with the right side of the second blocking plate, the upper surface of the screening box is provided with an inlet, and the upper surface of the screening box is provided with a feeding cylinder.

[0008] Further, the top end of the feeding cylinder is communicated with a flow guide hopper, and the feeding cylinder is located outside the inlet.

[0009] Further, the screening mechanism comprises a first support frame arranged in the screening box, a second support frame arranged on the lower side of the screening box, a screening net arranged in the first support frame and the second support frame, a first discharge port arranged on the left and right sides of the screening box, the first support frame arranged in the right first discharge port, the second support frame arranged in the left first discharge port, a second flow guide inclined plate arranged on the lower side of the screening box, and a second discharge port arranged on the lower side of the right side of the screening box.

[0010] Further, the screening mechanism further comprises spring telescopic rods arranged at the four corners of the lower surface of the screening box, the lower surfaces of the four spring telescopic rods are fixedly connected with the upper surface of the base, vibration structures are arranged on the left and right sides of the lower surface of the screening box, a flow guide cylinder is arranged on the right side of the screening box, and the flow guide cylinder is located outside the right first discharge port.

[0011] Further, the spring telescopic rod comprises a first sliding rod, a second sliding rod slidably connected with the outer side of the first sliding rod, and a spring movably sleeved with the outer side of the second sliding rod.

[0012] Further, the first support frame, the second support frame and the second flow guide inclined plate are matched with the gaps of the screening box.

[0013] Further, the left and right side walls of the second sliding rod inner cavity are provided with limiting sliding grooves, the limiting sliding blocks are slidably connected in the limiting sliding grooves on the left and right sides, and the opposite sides of the limiting sliding blocks on the left and right sides are fixedly connected with the left and right sides of the first sliding rod.

[0014] Further, the vibration structure comprises a mounting frame, and the mounting frame is provided with a vibration motor.

[0015] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0016] 1. This construction sand and gravel screening machine can place the sand and gravel to be screened on the left side of the upper surface of the conveyor belt. By starting the conveyor belt, the sand and gravel can be transported to the right and then fall into the inside of the feed cylinder. Then, it is guided into the screening box by the first guide plates on the upper and lower sides for screening. The presence of no less than two rubber baffles can improve the stability of the conveying and reduce the labor required for unloading.

[0017] 2. This construction sand and gravel screening machine can activate the left and right vibrating structures when screening sand and gravel. Under the action of four spring telescopic rods, the screening box vibrates up and down, which in turn drives the upper and lower screening screens to vibrate up and down, improving the flow of screening. The aperture of the upper screening screen is larger than that of the lower screening screen, which can perform multi-stage screening of sand and gravel, thus improving the screening quality of sand and gravel. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the conveying mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure between the rubber baffle and the conveyor belt of this utility model;

[0021] Figure 4 This is a schematic diagram of the screening mechanism of this utility model.

[0022] In the diagram: 1. Base, 2. Screening box, 3. Conveying mechanism, 301. Support frame, 302. Conveyor belt, 303. Rubber baffle, 304. First baffle, 305. Second baffle, 306. Feed inlet, 307. Feed cylinder, 308. First guide plate, 4. Screening mechanism, 401. First support frame, 402. Second support frame, 403. Screening screen, 404. First discharge port, 405. Second guide plate, 406. Second discharge port, 407. Spring telescopic rod, 408. Vibration structure, 409. Guide cylinder. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1This embodiment of a sand and gravel screening machine for construction engineering includes a base 1 and a screening box 2. The upper surface of the base 1 is provided with a conveying mechanism 3, which can reduce the labor of unloading materials. The screening box 2 is provided with a screening mechanism 4, which can perform multi-stage screening of sand and gravel, thereby improving the screening quality of sand and gravel.

[0025] Please see Figures 2-3 In order to reduce the labor of unloading materials, in this embodiment, the conveying mechanism 3 includes two support frames 301 set on the upper surface of the base 1. The top of the left and right support frames 301 is provided with a conveyor belt 302. The outer side of the conveyor belt 302 is provided with no less than two rubber baffles 303. The front and rear sides of the upper surface of the conveyor belt 302 are provided with first baffles 304. The left side of the conveyor belt 302 is provided with a second baffle 305. The left side of the front and rear first baffles 304 is fixedly connected to the right side of the second baffle 305. The upper surface of the screening box 2 is provided with a feed inlet 306. The upper surface of the screening box 2 is provided with a feed cylinder 307. The left and right side walls of the inner cavity of the feed cylinder 307 are provided with first guide inclined plates 308.

[0026] In this embodiment, the top of the feed cylinder 307 is connected to a guide bucket, and the feed cylinder 307 is located outside the feed inlet 306.

[0027] It should be noted that the sand and gravel to be screened can be placed on the left side of the upper surface of the conveyor belt 302. By starting the conveyor belt 302, the sand and gravel can be transported to the right and then fall into the inside of the feed cylinder 307. Then, it is guided into the screening box 2 by the first guide inclined plates 308 on the upper and lower sides for screening. By setting two first baffles 304 and second baffles 305, the falling of sand and gravel in the conveyor belt 302 can be reduced. The presence of no less than two rubber baffles 303 can improve the stability of the conveying and thus save labor for unloading.

[0028] Please see Figure 4 In order to perform multi-stage screening of sand and gravel and improve the screening quality, the screening mechanism 4 in this embodiment includes a first support frame 401 disposed inside the screening box 2, a second support frame 402 disposed on the lower side inside the screening box 2, a screening screen 403 disposed inside both the first support frame 401 and the second support frame 402, and a first discharge port 404 extending through both the left and right sides of the screening box 2, with the first support frame 401 located inside the right first discharge port 404 and the second support frame 402 located inside the left first discharge port 404. A second guide plate 405 is disposed on the lower side inside the screening box 2, and a second discharge port 406 extending through the lower right side of the screening box 2, with the second guide plate 405 located inside the second discharge port 406.

[0029] In this embodiment, the screening mechanism 4 also includes spring telescopic rods 407 arranged at the four corners of the lower surface of the screening box 2. The lower surfaces of the four spring telescopic rods 407 are fixedly connected to the upper surface of the base 1. Vibration structures 408 are arranged on both the left and right sides of the lower surface of the screening box 2. A guide cylinder 409 is arranged on the right side of the screening box 2. The guide cylinder 409 is located outside the first discharge port 404 on the right side.

[0030] In this embodiment, when screening sand and gravel, the vibration structures 408 on the left and right sides can be activated. Under the action of the four spring telescopic rods 407, the screening box 2 vibrates up and down, which in turn drives the screening screens 403 on the upper and lower sides to vibrate up and down. The sand and gravel fall onto the upper screening screen 403 for the first screening, and then fall onto the lower screening screen 403 for the second screening.

[0031] In this embodiment, the spring telescopic rod 407 includes a first slide rod, a second slide rod is slidably connected to the outer side of the first slide rod, and a spring is movably fitted to the outer side of the second slide rod. The first support frame 401, the second support frame 402, and the second guide plate 405 are all fitted with the gap of the screening box 2. Limiting grooves are provided on the left and right side walls of the inner cavity of the second slide rod. Limiting sliders are slidably connected inside the left and right limiting grooves. The opposite side of the left and right limiting sliders is fixedly connected to the left and right sides of the first slide rod. The vibration structure 408 includes a mounting frame, and a vibration motor is provided inside the mounting frame.

[0032] It should be noted that during the first screening, sand and gravel that do not pass through the upper screening screen 403 are discharged through the guide tube 409, and sand and gravel that do not pass through the lower screening screen 403 are discharged through the left side of the second support frame 402. Sand and gravel that pass through both the upper and lower screening screens 403 can be discharged through the right side of the second guide inclined plate 405. The aperture of the upper screening screen 403 is larger than that of the lower screening screen 403, which allows for multi-stage screening of sand and gravel and improves the screening quality of sand and gravel.

[0033] The working principle of the above embodiments is as follows:

[0034] (1) The sand and gravel to be screened can be placed on the left side of the upper surface of the conveyor belt 302. By starting the conveyor belt 302, the sand and gravel can be transported to the right and then fall into the inside of the feed cylinder 307. Then, it is guided to the inside of the screening box 2 by the first guide plate 308 on the upper and lower sides for screening. By setting two first baffles 304 and second baffles 305, the falling of sand and gravel in the conveyor belt 302 can be reduced. The stability of the conveying can be improved by using no less than two rubber baffles 303, thereby saving labor for unloading.

[0035] (2) When screening sand and gravel, the vibration structure 408 on the left and right sides can be activated. Under the action of the four spring telescopic rods 407, the screening box 2 vibrates up and down, which in turn drives the screening screens 403 on the upper and lower sides to vibrate up and down. The sand and gravel fall onto the upper screening screen 403 for the first screening, and then fall onto the lower screening screen 403 for the second screening. During the first screening, the sand and gravel that do not pass through the upper screening screen 403 are discharged through the guide tube 409, and the sand and gravel that do not pass through the lower screening screen 403 are discharged through the left side of the second support frame 402. The sand and gravel that pass through the upper and lower screening screens 403 can be discharged through the right side of the second guide inclined plate 405. The aperture of the upper screening screen 403 is larger than that of the lower screening screen 403, which can perform multi-stage screening of sand and gravel and improve the screening quality of sand and gravel.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] 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.

Claims

1. A sand and gravel screening machine for construction engineering, comprising a base (1) and a screening box (2), characterized in that: The upper surface of the base (1) is provided with a conveying mechanism (3), and the inside of the screening box (2) is provided with a screening mechanism (4); The conveying mechanism (3) includes two support frames (301) set on the upper surface of the base (1). A conveyor belt (302) is set at the top of the support frames (301) on the left and right sides. At least two rubber baffles (303) are set on the outer side of the conveyor belt (302). A first baffle (304) is set on both the front and rear sides of the upper surface of the conveyor belt (302). A second baffle (305) is set on the left side of the conveyor belt (302). The left sides of the first baffles (304) on the front and rear sides are fixedly connected to the right side of the second baffle (305). A feed inlet (306) is opened through the upper surface of the screening box (2). A feed cylinder (307) is set on the upper surface of the screening box (2). A first guide plate (308) is set on both the left and right side walls of the inner cavity of the feed cylinder (307).

2. The sand and gravel screening machine for construction engineering according to claim 1, characterized in that: The top of the feed cylinder (307) is connected to a guide bucket, and the feed cylinder (307) is located outside the feed inlet (306).

3. The sand and gravel screening machine for construction engineering according to claim 1, characterized in that: The screening mechanism (4) includes a first support frame (401) disposed inside the screening box (2), a second support frame (402) disposed on the lower side inside the screening box (2), a screening screen (403) disposed inside both the first support frame (401) and the second support frame (402), a first discharge port (404) being provided through the left and right sides of the screening box (2), the first support frame (401) being located inside the right first discharge port (404), the second support frame (402) being located inside the left first discharge port (404), a second guide plate (405) being disposed on the lower side inside the screening box (2), a second discharge port (406) being provided through the lower side of the right side of the screening box (2), and the second guide plate (405) being located inside the second discharge port (406).

4. A sand and gravel screening machine for construction engineering according to claim 3, characterized in that: The screening mechanism (4) also includes spring telescopic rods (407) set at the four corners of the lower surface of the screening box (2). The lower surfaces of the four spring telescopic rods (407) are fixedly connected to the upper surface of the base (1). Vibration structures (408) are set on both the left and right sides of the lower surface of the screening box (2). A guide cylinder (409) is set on the right side of the screening box (2). The guide cylinder (409) is located outside the first discharge port (404) on the right side.

5. A sand and gravel screening machine for construction engineering according to claim 4, characterized in that: The spring telescopic rod (407) includes a first slide rod, a second slide rod is slidably connected to the outside of the first slide rod, and a spring is movably fitted on the outside of the second slide rod.

6. A sand and gravel screening machine for construction engineering according to claim 3, characterized in that: The first support frame (401), the second support frame (402), and the second guide plate (405) are all fitted with the gap of the screening box (2).

7. A sand and gravel screening machine for construction engineering according to claim 5, characterized in that: The left and right side walls of the inner cavity of the second slide rod are provided with limiting grooves, and the inside of the limiting grooves on the left and right sides are slidably connected to limiting sliders. The opposite side of the limiting sliders on the left and right sides is fixedly connected to the left and right sides of the first slide rod.

8. A sand and gravel screening machine for construction engineering according to claim 4, characterized in that: The vibration structure (408) includes a mounting frame, and a vibration motor is disposed inside the mounting frame.

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