Gravel screening device for house building project

Abstract

The utility model relates to the technical field of house construction, and discloses a gravel screening device for house construction engineering, which comprises a box body, and a screening device is arranged on the box body. According to the gravel screening device for the house building project, by arranging a first motor, a rolling wheel, a cam, a first filter screen, a connecting rod, a mounting plate, a second filter screen, a material guide plate, a fixing plate, a spring, a sliding rod and a partition plate, when the device is used, gravel is screened through the first filter screen and the second filter screen, and after the first motor is started, the rolling wheel collides with the mounting plate; the mounting plate vibrates up and down by utilizing the tension of the spring to prevent the filter screen from being blocked, and the spring is protected by utilizing the partition plate to prevent gravel from clamping the interior of the spring; a second motor, a discharging plate, a supporting frame and a spiral conveying plate are arranged, the second motor is started, and the spiral conveying plate drives gravel to be discharged; and by arranging the baffle and the adjusting lead screw, the distance between the baffle and the discharging plate is adjusted by rotating the adjusting lead screw, and the discharging speed is controlled.

Description

Technical Field

[0001] This utility model relates to the field of housing construction technology, specifically to a sand and gravel screening device for housing construction projects. Background Technology

[0002] Sand and gravel screening in housing construction can remove soil, debris, and excessively large or small particles from sand and gravel, improving the purity and quality of sand and gravel and preventing excessive impurities from affecting the performance of concrete.

[0003] Chinese patent disclosure (CN216757154U) discloses a sand and gravel screening device for building and civil engineering. The device includes a screening cylinder with a base at its bottom. Connecting plates are installed on both sides of the outer wall of the screening cylinder. A rotating shaft, connected to the outer wall of the screening cylinder on one side, is installed inside each connecting plate. A feeding frame is installed on the inner side of each connecting plate. A reel, connected to the connecting plate on one side, is located inside the screening cylinder. An elastic rope is sleeved on the outer wall of the reel. This sand and gravel screening device, by rotating the connecting plates, drives the reel connected to the inner side of the screening cylinder to rotate. The reel can use a winding groove on its outer wall to wind up the elastic rope, and the elastic rope can stretch the rotating plate connected to one side to rotate, allowing for quantitative feeding of sand and gravel. This prevents excessive sand and gravel from being added to the screening cylinder, thus avoiding blockage.

[0004] However, it still has the following drawbacks: the device uses a half-gear and a tension spring to control the reciprocating movement of the solid plate and the screen plate. However, when the tension spring pulls the solid plate to the left, the half-gear cannot properly engage with the bevel gear, which may lead to mechanical collision between the half-gear and the bevel gear, causing a mechanical accident. Therefore, we propose a sand and gravel screening device for building construction to solve this problem. Utility Model Content

[0005] The purpose of this utility model is to provide a sand and gravel screening device for building construction projects to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sand and gravel screening device for building construction, comprising a box body, wherein a screening device is provided on the box body, and the screening device includes a filter section;

[0007] The filter section includes a first motor and a slide rod. The back of the first motor is fixedly connected to the front of the housing. An mounting plate is slidably sleeved on the outer surface of the slide rod. A fixing plate is fixedly connected to the bottom surface of the slide rod. The outer surface of the fixing plate is fixedly connected to the inner wall of the housing.

[0008] The box body is equipped with a feeding section;

[0009] The feeding section includes a feeding plate and a baffle. The outer surface of the feeding plate is fixedly connected to the inner wall of the box, and the outer surface of the left end of the baffle slides through the right end face of the box and extends into the inside of the box.

[0010] A further improvement is that the filtration section also includes rollers, cams, a first filter screen, a connecting rod, a second filter screen, a guide plate, a spring, and a partition. The outer surface of the mounting plate has through holes. The inner wall of the upper mounting plate is fixedly connected to the inner wall of the second filter screen, and the inner wall of the lower mounting plate is fixedly connected to the outer surface of the first filter screen. The top surface of the guide plate is fixedly connected to the bottom surface of the upper mounting plate. By setting the first and second filter screens, it is convenient to screen sand and gravel.

[0011] A further improvement is that the outer surface of the first motor output shaft rotates through the front of the housing and extends into the housing via the first bearing. The cam is fixedly sleeved on the outer surface of the first motor output shaft, and the outer surface of the roller extends into the housing and is rotatably connected to the inner wall of the cam via the first bearing seat. By setting the first motor, cam and roller, the first motor is started, causing the mounting plate to vibrate up and down, which facilitates the screening of sand and gravel by the first and second filter screens.

[0012] A further improvement is that the bottom end of the spring is fixedly connected to the top surface of the fixed plate, the top end of the spring is fixedly connected to the bottom surface of the mounting plate, the bottom surface of the connecting rod is fixedly connected to the top surface of the lower mounting plate, and the outer surface of the top end of the connecting rod is fixedly connected through the bottom surface of the guide plate and fixedly connected to the bottom surface of the upper mounting plate. By setting the spring and the connecting rod, the upper and lower mounting plates are made to vibrate up and down together using the connecting rod.

[0013] A further improvement is that the top surface of the partition is fixedly connected to the bottom surface of the mounting plate, the outer surface of the partition inside the box is slidably connected to the outer surface of the fixed plate, the outer surface of the partition inside the box is slidably connected to the inner wall of the box, and the outer surface of the partition outside the box is slidably connected to the outer surface of the box. By setting the partition, the spring is protected and sand and gravel are prevented from getting stuck on the spring.

[0014] A further improvement is that the feeding section also includes a second motor, a support frame, a spiral conveyor plate, and an adjusting screw. The right end face of the second motor is fixedly connected to the left end face of the housing. The outer surface of the output shaft of the second motor rotates through the left end face of the housing and extends into the interior of the housing via a second bearing. The spiral conveyor plate is fixedly sleeved on the outer surface of the output shaft of the second motor. The outer surface of the support frame is fixedly connected to the inner wall of the housing. The outer surface of the support frame is fixedly connected to the outer surface of the discharge plate. By setting up the second motor and the spiral conveyor plate, it is convenient to control the material discharge of the device.

[0015] A further improvement is that the outer surface of the right end of the adjusting screw is threaded through the inner wall of the baffle and extends to the right side of the baffle. The outer surface of the left end of the adjusting screw is rotatably connected to the right end face of the housing through the second bearing seat. By setting the adjusting screw and the baffle, it is convenient to control the left and right movement of the baffle and to control the feeding speed of the device.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This sand and gravel screening device for building construction, by setting up a first motor, rollers, cams, a first filter screen, connecting rods, mounting plates, a second filter screen, a guide plate, a fixing plate, springs, sliding rods, and partitions, utilizes the first and second filter screens to screen the sand and gravel during use. After starting the first motor, the rollers impact the mounting plate, and the tension of the springs causes the mounting plate to vibrate up and down, preventing the filter screen from clogging. The partitions protect the springs, preventing sand and gravel from getting stuck inside. By setting up a second motor, a discharge plate, a support frame, and a spiral conveyor plate, starting the second motor causes the spiral conveyor plate to drive the sand and gravel to discharge. By setting up a baffle and an adjusting screw, rotating the adjusting screw adjusts the distance between the baffle and the discharge plate, controlling the discharge speed. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the screening device of this utility model;

[0018] Figure 2 This is a front sectional view of the three-dimensional structure of the screening device of this utility model;

[0019] Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle;

[0020] Figure 4 This is a partial sectional view of the three-dimensional structure of the screening device of this utility model;

[0021] Figure 5 This is a top sectional view of the three-dimensional structure of the screening device of this utility model.

[0022] In the diagram: 1. Box body; 2. Screening device; 21. Filtering section; 22. Feeding section; 211. First motor; 212. Roller; 213. Cam; 214. First filter screen; 215. Connecting rod; 216. Mounting plate; 217. Second filter screen; 218. Guide plate; 219. Fixing plate; 210. Spring; 201. Slide rod; 202. Partition plate; 221. Second motor; 222. Discharge plate; 223. Baffle plate; 224. Support frame; 225. Spiral conveyor plate; 226. Adjusting screw. 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 Figures 1-5 The present invention provides a technical solution: a sand and gravel screening device for building construction, including a box 1, a screening device 2 installed on the box 1, and the screening device 2 including a filter section 21.

[0025] The filter section 21 includes a first motor 211 and a slide rod 201. The back of the first motor 211 is fixedly connected to the front of the housing 1. The outer surface of the slide rod 201 is slidably fitted with an mounting plate 216. The bottom surface of the slide rod 201 is fixedly connected with a fixing plate 219. The outer surface of the fixing plate 219 is fixedly connected to the inner wall of the housing 1. The filter section 21 also includes a roller 212, a cam 213, a first filter screen 214, a connecting rod 215, a second filter screen 217, a guide plate 218, a spring 210, and a partition plate 202.

[0026] The outer surface of the mounting plate 216 has through holes. The inner wall of the upper mounting plate 216 is fixedly connected to the inner wall of the second filter screen 217. The inner wall of the lower mounting plate 216 is fixedly connected to the outer surface of the first filter screen 214. The top surface of the guide plate 218 is fixedly connected to the bottom surface of the upper mounting plate 216.

[0027] The bottom surface of the connecting rod 215 is fixedly connected to the top surface of the lower mounting plate 216. The outer surface of the top end of the connecting rod 215 is fixedly connected through the bottom surface of the guide plate 218 and to the bottom surface of the upper mounting plate 216. The outer surface of the output shaft of the first motor 211 rotates through the front of the box 1 and extends into the inside of the box 1 via the first bearing. The cam 213 is fixedly sleeved on the outer surface of the output shaft of the first motor 211. The outer surface of the roller 212 extends into the inside of the box 1 and is rotatably connected to the inner wall of the cam 213 via the first bearing seat.

[0028] The bottom end of spring 210 is fixedly connected to the top surface of fixing plate 219, and the top end of spring 210 is fixedly connected to the bottom surface of mounting plate 216.

[0029] The top surface of partition 202 is fixedly connected to the bottom surface of mounting plate 216. The outer surface of partition 202 inside the housing 1 is slidably connected to the outer surface of fixed plate 219. The outer surface of partition 202 inside the housing 1 is slidably connected to the inner wall of housing 1. The outer surface of partition 202 outside the housing 1 is slidably connected to the outer surface of housing 1. A first motor 211, roller 212, cam 213, first filter screen 214, connecting rod 215, mounting plate 216, and second filter screen 217 are provided. The device includes a guide plate 218, a fixing plate 219, a spring 210, a slide rod 201, and a partition plate 202. When in use, the device uses the first filter screen 214 and the second filter screen 217 to screen the sand and gravel. After starting the first motor 211, the roller 212 impacts the mounting plate 216. The tension of the spring 210 causes the mounting plate 216 to vibrate up and down to prevent the filter screen from clogging. The partition plate 202 protects the spring 210 to prevent sand and gravel from getting stuck inside the spring 210.

[0030] The housing 1 is equipped with a feeding section 22;

[0031] The feeding section 22 includes a feeding plate 222 and a baffle 223. The outer surface of the feeding plate 222 is fixedly connected to the inner wall of the box 1. The outer surface of the left end of the baffle 223 slides through the right end face of the box 1 and extends into the interior of the box 1. The feeding section 22 also includes a second motor 221, a support frame 224, a screw conveyor plate 225 and an adjusting screw 226.

[0032] The outer surface of the support frame 224 is fixedly connected to the inner wall of the box 1, and the outer surface of the support frame 224 is fixedly connected to the outer surface of the feeding plate 222.

[0033] The right end face of the second motor 221 is fixedly connected to the left end face of the housing 1. The outer surface of the output shaft of the second motor 221 rotates through the left end face of the housing 1 and extends into the interior of the housing 1 via the second bearing. The spiral conveyor plate 225 is fixedly sleeved on the outer surface of the output shaft of the second motor 221. By setting the second motor 221, the discharge plate 222, the support frame 224 and the spiral conveyor plate 225, the second motor 221 is started, so that the spiral conveyor plate 225 drives the sand and gravel to be discharged.

[0034] The outer surface of the right end of the adjusting screw 226 is threaded through the inner wall of the baffle 223 and extends to the right side of the baffle 223. The outer surface of the left end of the adjusting screw 226 is rotatably connected to the right end face of the housing 1 through the second bearing seat. By setting the baffle 223 and the adjusting screw 226, rotating the adjusting screw 226 adjusts the distance between the baffle 223 and the feeding plate 222, thereby controlling the feeding speed.

[0035] When in use, the second motor 221 is started. The output shaft of the second motor 221 drives the spiral conveyor plate 225 to rotate, pushing the sand and gravel to the right. The sand and gravel fall through the gap between the discharge plate 222 and the baffle 223. The first motor 211 is started. The output shaft of the first motor 211 drives the cam 213 and the roller 212 to rotate. The roller 212 impacts the lower mounting plate 216. Through the connecting rod 215, the upper mounting plate 216 shakes up and down together. Large pieces of sand and gravel are discharged from the box 1 to the left along the top surface of the second filter screen 217. The remaining sand and gravel fall on the top surface of the first filter screen 214. Small particles of sand and gravel fall through the second filter screen 217.

[0036] 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 the 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 sand and gravel screening device for building construction, comprising a housing (1), characterized in that: The box (1) is provided with a screening device (2), which includes a filter section (21); The filter section (21) includes a first motor (211) and a slide rod (201). The back of the first motor (211) is fixedly connected to the front of the housing (1). The outer surface of the slide rod (201) is slidably fitted with an mounting plate (216). The bottom surface of the slide rod (201) is fixedly connected with a fixing plate (219). The outer surface of the fixing plate (219) is fixedly connected to the inner wall of the housing (1). The box (1) is provided with a feeding part (22); The feeding section (22) includes a feeding plate (222) and a baffle (223). The outer surface of the feeding plate (222) is fixedly connected to the inner wall of the box (1). The outer surface of the left end of the baffle (223) slides through the right end face of the box (1) and extends into the interior of the box (1).

2. The sand and gravel screening device for building construction according to claim 1, characterized in that: The filter section (21) further includes a roller (212), a cam (213), a first filter screen (214), a connecting rod (215), a second filter screen (217), a guide plate (218), a spring (210), and a partition plate (202). The outer surface of the mounting plate (216) is provided with a through hole. The inner wall of the upper mounting plate (216) is fixedly connected to the inner wall of the second filter screen (217), and the inner wall of the lower mounting plate (216) is fixedly connected to the outer surface of the first filter screen (214). The top surface of the guide plate (218) is fixedly connected to the bottom surface of the upper mounting plate (216).

3. The sand and gravel screening device for building construction according to claim 2, characterized in that: The outer surface of the output shaft of the first motor (211) rotates through the front of the housing (1) and extends into the interior of the housing (1) via the first bearing. The cam (213) is fixedly sleeved on the outer surface of the output shaft of the first motor (211). The outer surface of the roller (212) extends into the interior of the housing (1) and is rotatably connected to the inner wall of the cam (213) via the first bearing seat.

4. The sand and gravel screening device for building construction according to claim 2, characterized in that: The bottom end of the spring (210) is fixedly connected to the top surface of the fixing plate (219), the top end of the spring (210) is fixedly connected to the bottom surface of the mounting plate (216), the bottom surface of the connecting rod (215) is fixedly connected to the top surface of the lower mounting plate (216), and the outer surface of the top end of the connecting rod (215) is fixedly connected through the bottom surface of the guide plate (218) and fixedly connected to the bottom surface of the upper mounting plate (216).

5. A sand and gravel screening device for building construction according to claim 2, characterized in that: The top surface of the partition (202) is fixedly connected to the bottom surface of the mounting plate (216), the outer surface of the partition (202) inside the box (1) is slidably connected to the outer surface of the fixing plate (219), the outer surface of the partition (202) inside the box (1) is slidably connected to the inner wall of the box (1), and the outer surface of the partition (202) outside the box (1) is slidably connected to the outer surface of the box (1).

6. The sand and gravel screening device for building construction according to claim 1, characterized in that: The feeding section (22) also includes a second motor (221), a support frame (224), a spiral conveyor plate (225), and an adjusting screw (226). The right end face of the second motor (221) is fixedly connected to the left end face of the housing (1). The outer surface of the output shaft of the second motor (221) rotates through the left end face of the housing (1) and extends into the interior of the housing (1) through the second bearing. The spiral conveyor plate (225) is fixedly sleeved on the outer surface of the output shaft of the second motor (221). The outer surface of the support frame (224) is fixedly connected to the inner wall of the housing (1). The outer surface of the support frame (224) is fixedly connected to the outer surface of the feeding plate (222).

7. A sand and gravel screening device for building construction according to claim 6, characterized in that: The outer surface of the right end of the adjusting screw (226) is threaded through the inner wall of the baffle (223) and extends to the right side of the baffle (223). The outer surface of the left end of the adjusting screw (226) is rotatably connected to the right end face of the housing (1) through the second bearing seat.

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