Sand screening device for construction engineering

Abstract

The sand screening device for the construction engineering comprises an outer bin, and a front window is formed in the front face of the outer bin; a turning assembly is arranged in the outer bin and comprises a fixing shell, the top of the fixing shell is fixedly connected with a gear shell, a screening barrel is rotatably installed in the outer bin, a first gear and a second gear are rotatably installed in the gear shell, a first bevel gear is rotatably installed on one side in the fixing shell, and a second bevel gear is rotatably installed on the other side in the fixing shell. A second bevel gear is rotationally connected to the other side of the interior of the fixing shell, and the top of the first bevel gear and the top of the second bevel gear are engaged with a third bevel gear at the same time. And through a first gear, a second gear, a first bevel gear and a third bevel gear, under the condition that the output power of the first motor is low, the screening barrel can rotate at a high speed, a stirring rod can be in a state of reversely disturbing sand, and the sand screening efficiency of the device is improved.

Description

Technical Field

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

[0002] Publication No. CN221017200U discloses a high-efficiency sand screening device for construction engineering, including a base plate. A through groove is opened in the middle of one side of the base plate, and a guide plate is provided at the bottom end of the through groove. The top end of the guide plate is connected to the bottom end of the base plate by welding. A vertical plate is installed on the top side of the base plate away from the through groove. An installation plate is installed on the middle of the side of the vertical plate near the base plate by a bearing. This utility model uses a drive motor to drive the active circular gear to rotate. Under the meshing relationship between the active and driven circular gears, the screen can be driven to rotate. The rotation of the screen itself can perform automatic screening. With the presence of the through groove and the guide plate, the screened sand can be automatically fed into the guide plate through the through groove and then discharged, thus achieving automatic discharge and having a good high-efficiency sand screening effect. However, this patent still has the following problems in actual use:

[0003] When screening sand, the above-mentioned device can only screen one batch at a time and cannot continuously replenish the sand for screening. After a single batch of raw materials is screened, the machine needs to be stopped to replenish the material, which affects the screening efficiency. Moreover, the fixed mixing plate in the device reduces the effect of promoting screening efficiency and easily leads to situations where sand falls onto the mixing plate and cannot be screened.

[0004] A sand screening device for construction projects is proposed to address the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a sand screening device for construction projects, in order to solve the problem that the aforementioned devices in the background art can only screen sand batch by batch and cannot continuously replenish the sand for screening. After a single batch of raw materials is screened, the machine needs to be stopped to replenish the material, which affects the screening efficiency. Moreover, the fixed mixing plate in the device reduces the effect of promoting screening efficiency and easily leads to the problem that sand falling onto the mixing plate cannot be screened.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a sand screening device for construction projects, comprising an outer chamber, wherein a front window is provided on the front of the outer chamber and a side window is provided on the side of the outer chamber;

[0007] The outer chamber is equipped with a tilting assembly, which includes a fixed shell fixed to the side of the outer chamber away from the side window. A gear shell is fixedly connected to the top of the fixed shell. A screen barrel is rotatably installed inside the outer chamber. A guide plate is fixedly connected inside the side window. The guide plate is inserted into the feeding port of the screen barrel. A slag discharge assembly is provided on the outside of the screen barrel.

[0008] The gear housing contains a first gear and a second gear that are rotatably mounted inside the gear housing and mesh with each other. A first bevel gear is rotatably mounted on one side of the inside of the fixed housing, and a second bevel gear is rotatably connected to the other side of the inside of the fixed housing. A third bevel gear is meshed with the tops of the first and second bevel gears. A connecting shaft is fixedly connected between the third bevel gear and the second gear.

[0009] The second bevel gear is fixedly connected to the screen barrel by an outer tube, and a connecting rod is connected through the inside of the outer tube. One end of the connecting rod is fixedly connected to the first bevel gear, and the other end of the connecting rod extends into the screen barrel.

[0010] Preferably, a first motor is fixedly connected to the top of the fixed shell, and the output end of the first motor is fixedly connected to a first gear, the diameter of the first gear being larger than that of the second gear.

[0011] Preferably, the second bevel gear has the same diameter as the first bevel gear, the third bevel gear has a larger diameter than the first bevel gear, and a number of stirring rods are fixedly connected to the external part of the connecting rod located inside the sieve barrel.

[0012] Preferably, a track is symmetrically fixedly connected to the outer non-mesh surface of the screen barrel, and a support wheel is fixedly connected to the inside of the outer chamber, with the support wheel being rotatably connected to the track.

[0013] Preferably, the slag discharge assembly includes an outer window opened on the screen surface of the screen barrel, and a pair of screens are hinged to the outside of the outer window. A pair of protrusions are fixedly installed on the side of the two screens that are close to each other.

[0014] Preferably, the protrusions are staggered, one end of the protrusion is fixedly connected to one of the barriers and has a pin slidably connected inside, the other end of the protrusion extends to the outside of another barrier, and the pin passes through the other end of the other protrusion.

[0015] Preferably, a pull ring is fixedly connected to the end of the pin away from the protrusion, and a first spring is fixedly connected between the pull ring and the protrusion, the first spring being sleeved on the outside of the pin.

[0016] Compared with the prior art, the beneficial effects of this utility model are: This sand screening device for construction projects, with its first and second gears, first and third bevel gears, allows the screen barrel to rotate rapidly even when the output power of the first motor is low, and the stirring rod can agitate the sand in the opposite direction, thus improving the sand screening efficiency of the device. The specific details are as follows:

[0017] 1. The guide plate continuously fills the screen barrel with raw materials. When the first motor starts, the first gear and the second gear will increase the speed of the second gear when the torque of the first motor is low. Finally, the first bevel gear and the second bevel gear will rotate rapidly in opposite directions. The output power of the first motor is relatively low, which meets the speed of rapid rotation of the screen barrel. Meanwhile, the stirring rod fully stirs the sand inside the screen barrel, which ultimately improves the sand screening efficiency of the device.

[0018] 2. When the outer window is moved to the downward position, the latch is moved by pulling the ring, which causes the latch to be pulled away from the protrusion. The net will flip open under gravity, allowing the impurities that have fallen onto the net to fall freely, achieving quick cleaning. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the front cross-section structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the cross-sectional installation structure of the screen barrel;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the outer warehouse;

[0023] Figure 5 for Figure 2 Enlarged structural diagram at point A;

[0024] Figure 6 This is a schematic diagram of the guide tray structure;

[0025] Figure 7 This is a schematic diagram of the structure when the barrier net is separated.

[0026] In the diagram: 1. Outer chamber; 101. Front window; 102. Side window; 2. Tilting assembly; 201. Fixed shell; 202. Gear shell; 203. Screen barrel; 204. Guide plate; 205. First motor; 206. First gear; 207. Second gear; 208. First bevel gear; 209. Second bevel gear; 210. Third bevel gear; 211. Connecting shaft; 212. Outer pipe; 213. Connecting rod; 214. Stirring rod; 215. Track; 216. Support wheel; 3. Slag discharge assembly; 301. Outer window; 302. Barrier; 303. Protrusion; 304. Pin; 305. Pull ring; 306. First spring. Detailed Implementation

[0027] 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.

[0028] Please see Figures 1-7 The present invention provides a technical solution: a sand screening device for construction projects, including an outer chamber 1, a front window 101 on the front of the outer chamber 1, and a side window 102 on the side of the outer chamber 1; the front window 101 is located on the front and bottom of the outer chamber 1.

[0029] The outer chamber 1 is equipped with a flipping assembly 2. The flipping assembly 2 includes a fixed shell 201 fixed to the side of the outer chamber 1 away from the side window 102. A gear shell 202 is fixedly connected to the top of the fixed shell 201. A screen barrel 203 is rotatably installed inside the outer chamber 1. A guide plate 204 is fixedly connected inside the side window 102. The guide plate 204 is inserted into the feeding port of the screen barrel 203. A slag discharge assembly 3 is provided on the outside of the screen barrel 203. The screen barrel 203 includes non-mesh surfaces on both sides and a mesh surface in the middle. The inner side of the non-mesh surface is provided with an inclined surface, which can guide the sand to move to the mesh surface.

[0030] The gear housing 202 has a first gear 206 and a second gear 207 rotatably mounted inside, and the first gear 206 and the second gear 207 are meshed together. The fixed housing 201 has a first bevel gear 208 rotatably mounted on one side inside, and a second bevel gear 209 rotatably connected to the other side inside. The tops of the first bevel gear 208 and the second bevel gear 209 are simultaneously meshed with a third bevel gear 210. A connecting shaft 211 is fixedly connected between the third bevel gear 210 and the second gear 207. The connecting shaft 211 is rotatably connected to the fixed housing 201 and the gear housing 202.

[0031] The second bevel gear 209 is fixedly connected to the screen barrel 203 by an outer tube 212. A connecting rod 213 is connected through the inside of the outer tube 212. One end of the connecting rod 213 is fixedly connected to the first bevel gear 208, and the other end of the connecting rod 213 extends into the screen barrel 203. The outer tube 212 rotates through the fixed shell 201 and the outer compartment 1. A through hole is opened in the middle of the second bevel gear 209.

[0032] A first motor 205 is fixedly connected to the top of the fixed shell 201. The output end of the first motor 205 is fixedly connected to a first gear 206, the diameter of which is larger than that of the second gear 207. The second bevel gear 209 has the same diameter as the first bevel gear 208, and the diameter of the third bevel gear 210 is larger than that of the first bevel gear 208. Several stirring rods 214 are fixedly connected to the outside of a section of the connecting rod 213 located inside the sieve barrel 203. The number of stirring rods 214 is not less than three pairs.

[0033] The screen barrel 203 is symmetrically and fixedly connected to the non-mesh surface on the outside, and the outer chamber 1 is fixedly connected to the support wheel 216. The support wheel 216 is rotatably connected to the track 215. The track 215 and the support wheel 216 can ensure that the screen barrel 203 maintains stable rotation.

[0034] The slag discharge assembly 3 includes an outer window 301 opened on the screen surface of the screen barrel 203. A pair of screens 302 are hinged to the outside of the outer window 301. A pair of protrusions 303 are fixedly installed on the side of the two screens 302 that are close to each other. The protrusions 303 are staggered. One end of the protrusion 303 is fixedly connected to one screen 302 and is slidably connected to the inside with a pin 304. The other end of the protrusion 303 extends to the outside of the other screen 302, and the pin 304 passes through the other end of the other protrusion 303. The screens 302 are embedded in the outer window 301.

[0035] A pull ring 305 is fixedly connected to the end of the pin 304 away from the protrusion 303. A first spring 306 is fixedly connected between the pull ring 305 and the protrusion 303. The first spring 306 is sleeved on the outside of the pin 304. The first spring 306 can pull the pin 304 back to the initial position. In this position, the pin 304 is stably inserted into the protrusion 303.

[0036] Working principle: Before using this sand screening device for construction projects, it is necessary to check the overall condition of the device to ensure it can operate normally. Figure 1 - Figure 7As shown, the guide plate 204 continuously fills the screen barrel 203 with raw materials. When the first motor 205 starts, the first gear 206 and the second gear 207 will increase the speed of the second gear 207 when the torque of the first motor 205 is low. Then, the third bevel gear 210 is rotated through the connecting shaft 211, thereby causing the first bevel gear 208 and the second bevel gear 209 to rotate in opposite directions.

[0037] At this time, the first bevel gear 208 will drive the screen barrel 203 to rotate clockwise through the outer tube 212, while the second bevel gear 209 will rotate in the opposite direction through the connecting rod 213, thereby enabling the stirring rod 214 to fully stir the sand inside the screen barrel 203, ultimately improving the sand screening efficiency of the device.

[0038] When the outer window 301 moves to the downward position, the sand below is first cleared away. Then, the pull ring 305 is pulled to move the pin 304, which causes the pin 304 to be pulled away from the protrusion 303. This allows the net 302 to flip downward and open, at which point the impurities falling on the net 302 can fall freely, achieving rapid cleaning.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sand screening device for construction projects, comprising an outer chamber (1), wherein a front window (101) is provided on the front of the outer chamber (1) and a side window (102) is provided on the side of the outer chamber (1); characterized in that Also includes: The outer chamber (1) is equipped with a turning assembly (2). The turning assembly (2) includes a fixed shell (201) fixed to the side of the outer chamber (1) away from the side window (102). A gear shell (202) is fixedly connected to the top of the fixed shell (201). A screen barrel (203) is rotatably installed inside the outer chamber (1). A guide plate (204) is fixedly connected inside the side window (102). The guide plate (204) is inserted into the feeding port of the screen barrel (203). A slag discharge assembly (3) is provided on the outside of the screen barrel (203). The gear housing (202) has a first gear (206) and a second gear (207) rotatably mounted inside, and the first gear (206) and the second gear (207) are meshed together. The fixed housing (201) has a first bevel gear (208) rotatably mounted on one side inside, and a second bevel gear (209) rotatably connected to the other side inside. The tops of the first bevel gear (208) and the second bevel gear (209) are simultaneously meshed with a third bevel gear (210). A connecting shaft (211) is fixedly connected between the third bevel gear (210) and the second gear (207). The second bevel gear (209) is fixedly connected to the screen barrel (203) by an outer tube (212), and a connecting rod (213) is connected through the inside of the outer tube (212). One end of the connecting rod (213) is fixedly connected to the first bevel gear (208), and the other end of the connecting rod (213) extends into the inside of the screen barrel (203).

2. A sand screening device for construction works according to claim 1, characterised in that: The top of the fixed shell (201) is fixedly connected to a first motor (205), the output end of the first motor (205) is fixedly connected to a first gear (206), and the diameter of the first gear (206) is larger than that of the second gear (207).

3. A sand screening device for construction works as claimed in claim 1 wherein: The second bevel gear (209) has the same diameter as the first bevel gear (208), the third bevel gear (210) has a larger diameter than the first bevel gear (208), and the connecting rod (213) has several stirring rods (214) fixedly connected to the outside of a section inside the sieve barrel (203).

4. A sand screening device for construction works as claimed in claim 1, wherein: The screen barrel (203) is symmetrically connected to a track (215) on its outer non-mesh surface, and a support wheel (216) is fixedly connected to the inside of the outer chamber (1). The support wheel (216) is tactilely connected to the track (215).

5. A sand screening device for construction works as claimed in claim 1, wherein: The slag discharge assembly (3) includes an outer window (301) opened on the screen surface of the screen barrel (203). A pair of screens (302) are hinged to the outside of the outer window (301). A pair of protrusions (303) are fixedly installed on the side of the two screens (302) that are close to each other.

6. A sand screening device for construction works as claimed in claim 5 wherein: The protrusion (303) is offset, one end of the protrusion (303) is fixedly connected to one of the nets (302), and a pin (304) is slidably connected inside it. The other end of the protrusion (303) extends to the outside of another net (302), and the pin (304) passes through the other end of the other protrusion (303).

7. A sand screening device for construction works as claimed in claim 6 wherein: A pull ring (305) is fixedly connected to one end of the pin (304) away from the protrusion (303). A first spring (306) is fixedly connected between the pull ring (305) and the protrusion (303). The first spring (306) is sleeved on the outside of the pin (304).

Images