Gravel screening equipment for landscaping engineering

Abstract

The utility model provides gravel screening equipment for landscaping engineering, which relates to the technical field of landscaping and comprises a gravel screening box, a baffle a and a baffle b arranged in the gravel screening box, an exhaust pipe connected to one side of the outer end of the gravel screening box, and a lifting assembly arranged on one side of the outer end of the gravel screening box and used for adjusting the using height of the baffle a and the baffle b. The lifting assembly comprises a lead screw, a lifting plate, a movable plate and a lead screw hole, the dust removal assembly is arranged in the exhaust pipe and used for removing dust in the stone screening box, and the dust removal assembly comprises an exhaust fan, a dismounting pipe and a dust filtering net. According to the gravel screening equipment for the landscaping engineering, gravel stacked on the rotating roller a and the rotating roller b can be blocked through the baffle a and the baffle b, so that the situation that the gravel is in a stacked state and cannot be completely screened is avoided, dust generated during dust removal in the gravel screening box can be filtered and removed through the dust removal assembly, and the situation that the dust is directly discharged out of the gravel screening box and pollutes the surrounding environment is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of landscaping, in particular to a sand and gravel screening device for landscaping projects. Background Technique

[0002] Landscaping projects are an indispensable part of urban construction and landscape beautification. It involves using plants and natural elements to create or restore green spaces to improve environmental quality, ecological balance, and the quality of life of residents. Sand and gravel are needed in landscaping projects. In some cases, these stones need to be screened to a similar size specification. However, existing sand and gravel screening devices need to use vibrating motors or driving motors for driving during use, resulting in high production costs. Moreover, most existing sand and gravel screening devices are exposed to the outside world, and the generated dust is difficult to collect and process.

[0003] In order to address the above problems, the publication number CN215542493U discloses "a sand and gravel screening device for landscaping project construction", which uses the natural gravity of sand and gravel to drive the screening of sand and gravel, without using a vibrating motor or a rotating motor, thus greatly reducing energy consumption and production costs. However, when the device is actually used, there are still certain defects. For example, when the sand and gravel are screened at the top of the screening roller, since some sand and gravel will be stacked, the screening roller cannot completely filter the sand and gravel. Although the device can effectively avoid dust scattering through a closed screening environment, the dust collection port and the fan of the device can discharge the dust generated inside the screening box, and these dusts directly discharged outside the box will still pollute the surrounding environment. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is as follows: to provide a sand and gravel screening device for landscaping projects, which can prevent sand and gravel from being unable to be completely screened due to the stacking state through baffle a and baffle b, and can avoid dust directly discharged outside the screening box to pollute the surrounding environment through the dust removal component.

[0005] The technical problem to be solved by the utility model is achieved by adopting the following technical solutions:

[0006] A sand and gravel screening device for landscaping projects includes: a screening box, inside which baffle a and baffle b are arranged; an exhaust pipe connected to one side of the outer end of the screening box; a lifting component arranged on one side of the outer end of the screening box for adjusting the use height of baffle a and baffle b, the lifting component including: a lead screw, a lifting plate, a movable plate, and a lead screw hole; a dust removal component arranged inside the exhaust pipe for dust removal inside the screening box, the dust removal component including: an exhaust fan, a disassembly pipe, and a dust filter net.

[0007] Optionally, a lead screw is provided on one side of the outer end of the stone screening box. An elevating plate and a movable plate are arranged outside the lead screw. Screw holes that are threadedly connected to the lead screw are provided at the tops of the elevating plate and the movable plate. A connecting plate is provided at the top of the movable plate. Vertical plates are connected to both sides of the bottom of the connecting plate, and the bottoms of the vertical plates are connected to the movable plate. Connecting rods are connected to both sides of the outer end of the connecting plate, and one ends of the two connecting rods are respectively connected to both sides of the outer end of the baffle a. Limiting plates are connected to both the top and the bottom of the elevating plate. An opening is provided on one side of the outer end of the stone screening box, and limiting grooves that are slidably connected to the limiting plates are provided on both sides of the inner wall of the opening. One side of the outer end of the elevating plate is connected to the baffle b. Among them, the elevating assembly composed of the lead screw, the elevating plate, the movable plate, and the screw hole is used to adjust the use height of the baffle a and the baffle b.

[0008] Optionally, a detachable pipe is threadedly connected to the bottom of the exhaust pipe. A dust filter screen and an exhaust fan are installed inside the detachable pipe, and the exhaust fan is directly below the dust filter screen. Among them, the dust removal assembly composed of the exhaust fan, the detachable pipe, and the dust filter screen is used to remove dust inside the stone screening box.

[0009] Optionally, a plurality of rotating rollers a and a plurality of rotating rollers b are rotatably connected to both sides of the inner wall of the stone screening box through rotating shafts. A discharge port is provided on one side of the outer end of the stone screening box, and a discharge port is provided on the other side of the outer end of the stone screening box. A feeding frame is connected to one side of the top of the stone screening box. A guiding plate is installed inside the stone screening box. A through groove is provided on the front of the stone screening box. A cross plate is connected to one side of the outer end of the stone screening box. The bottom of the cross plate is rotatably connected to the lead screw through a bearing. A hand wheel is connected to the bottom of the lead screw. A side plate is connected to one side of the outer end of the stone screening box. Insertion holes are provided on both the side plate and the top of the hand wheel, and insertion rods are arranged inside the insertion holes. Among them, the plurality of rotating rollers a and the plurality of rotating rollers b are used for screening sand and gravel.

[0010] The beneficial effects of the present utility model are:

[0011] The advantages of the present utility model are that the sand and gravel stacked by the rotating rollers a and the rotating rollers b can be blocked and dropped by the baffle a and the baffle b, thereby preventing the sand and gravel from being in a piled-up state and unable to be completely screened;

[0012] Secondly, the dust generated during dust removal inside the stone screening box can be filtered and removed by the dust removal assembly, avoiding the direct discharge of dust outside the stone screening box and polluting the surrounding environment. Description of the Drawings

[0013] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0014] Figure 2 It is a cross-sectional view of the overall structure of the present utility model.

[0015] Figure 3Schematic diagram of the baffle b structure of the present utility model.

[0016] Figure 4 Schematic diagram of the baffle a structure of the present utility model.

[0017] Figure 5 Schematic diagram of the lead screw structure of the present utility model.

[0018] Figure 6 Schematic diagram of the dust filter net structure of the present utility model.

[0019] Figure 7 For the present utility model Figure 2 The enlarged view at position A in

[0020] Figures 1 - 7 In it: 1 - Stone screening box; 101 - Baffle a; 102 - Baffle b; 103 - Exhaust pipe; 2 - Lead screw; 201 - Lifting plate; 202 - Movable plate; 203 - Lead screw hole; 3 - Connecting plate; 301 - Vertical plate; 302 - Connecting rod; 4 - Limiting plate; 401 - Opening; 402 - Limiting groove; 5 - Exhaust fan; 501 - Demountable pipe; 502 - Dust filter net; 6 - Rotating roller a; 601 - Rotating roller b; 602 - Discharge port; 603 - Material discharge port; 7 - Feeding frame; 701 - Guide plate; 702 - Through groove; 8 - Cross plate; 801 - Handwheel; 802 - Side plate; 803 - Jacking hole; 804 - Plug rod. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0022] Next, the present application will be described in detail in conjunction with the accompanying drawings and specific embodiments.

[0023] As Figures 1 - 7 Shown, a sand and gravel screening device for landscaping projects includes: a stone screening box 1, a baffle a 101 and a baffle b 102 are arranged inside the stone screening box 1, an exhaust pipe 103 is connected to one side of the outer end of the stone screening box 1, a lifting assembly arranged on one side of the outer end of the stone screening box 1 for adjusting the use height of the baffle a 101 and the baffle b 102, the lifting assembly includes: a lead screw 2, a lifting plate 201, a movable plate 202 and a lead screw hole 203, and a dust removal assembly arranged inside the exhaust pipe 103 for dust removal inside the stone screening box 1, the dust removal assembly includes: an exhaust fan 5, a demountable pipe 501 and a dust filter net 502.

[0024] Among them, a lead screw 2 is arranged on one side of the outer end of the stone screening box 1. An elevating plate 201 and a movable plate 202 are arranged outside the lead screw 2. Screw holes 203 that are threadedly connected to the lead screw 2 are provided at the tops of the elevating plate 201 and the movable plate 202. When it is necessary to adjust the height positions of the baffle a 101 and the baffle b 102, the lead screw 2 is rotated by the handwheel 801. The elevating plate 201 and the movable plate 202 can move up and down along with the rotation of the lead screw 2 through the screw holes 203. And the elevating plate 201 can drive the baffle b 102 to move up and down, while the movable plate 202 drives the baffle a 101 to move up and down through the vertical plate 301, the connecting plate 3 and the connecting rod 302.

[0025] Among them, a connecting plate 3 is arranged at the top of the movable plate 202. Vertical plates 301 are connected to both sides of the bottom of the connecting plate 3. The bottoms of the vertical plates 301 are connected to the movable plate 202. Connecting rods 302 are connected to both sides of the outer end of the connecting plate 3. One ends of the two connecting rods 302 are respectively connected to both sides of the outer end of the baffle a 101. The connecting plate 3, the connecting rods 302 and the vertical plates 301 are used to connect the movable plate 202 and the baffle a 101, ensuring that the baffle a 101 can be driven to move up and down when the movable plate 202 moves up and down, and the stones are limited by the baffle a 101 and the baffle b 102 respectively for the rotating roller a 6 and the rotating roller b 601, preventing some stones from being stacked in pairs and unable to be completely filtered when the stones roll and are filtered on the tops of the rotating roller a 6 and the rotating roller b 601. And the heights of the baffle a 101 and the baffle b 102 can be adjusted through the lifting assembly, preventing stones with too high height from being blocked on one side of the outer ends of the baffle a 101 and the baffle b 102. Among them, an observation window is inlaid on one side of the outer end of the stone screening box 1, and the observation window is convenient for the user to view the lifting heights of the baffle a 101 and the baffle b 102.

[0026] Among them, limiting plates 4 are connected to both the top and the bottom of the elevating plate 201. An opening 401 is provided on one side of the outer end of the stone screening box 1. Limiting grooves 402 that are slidably connected to the limiting plates 4 are provided on both sides of the inner wall of the opening 401. One side of the outer end of the elevating plate 201 is connected to the baffle b 102. When the elevating plate 201 moves up and down, it will drive the limiting plates 4 to move inside the limiting grooves 402. By limiting the limiting plates 4 through the limiting grooves 402, the elevating plate 201 can be prevented from shifting during the lifting process.

[0027] Among them, the bottom of the exhaust pipe 103 is threadedly connected with a disassembly pipe 501. A dust filter screen 502 and an exhaust fan 5 are installed inside the disassembly pipe 501. The exhaust fan 5 is located directly below the dust filter screen 502. When screening sand and gravel inside the screening box 1, dust will float inside the screening box 1. These dusts are easily discharged outside the screening box 1 through the discharge port 602, the discharge port 603, and the through groove 702. At this time, the exhaust fan 5 can exhaust the air inside the screening box 1 into the disassembly pipe 501 through the exhaust pipe 103. The floating dust inside the screening box 1 can be sucked into the disassembly pipe 501 along with the exhaust fan 5, and then the dust entering the disassembly pipe 501 is filtered and intercepted by the dust filter screen 502, while the air can pass through the dust filter screen 502 and be discharged outside the disassembly pipe 501. Therefore, it can prevent dust from being discharged outside the screening box 1. The disassembly pipe 501 can be rotated and disassembled from the outside of the exhaust pipe 103, so as to facilitate the cleaning of the dust on the top of the dust filter screen 502. And a partition net is installed inside the exhaust pipe 103, which can prevent sand and gravel from entering the exhaust pipe 103. The specification of the dust filter screen 502 is 300 meshes.

[0028] One side of the outer end of the screening box 1 is provided with a control panel, which is used to start and stop the air exhaust fan 5. Both the control panel and the exhaust fan 5 are powered by an external power supply. And for the control program involved in the present utility model, those skilled in the art can all achieve it according to the same or similar principles in the prior art. This part is not the innovation of the present utility model.

[0029] Among them, both sides of the inner wall of the screening box 1 are rotatably connected with a plurality of rotating rollers a6 and a plurality of rotating rollers b601 through rotating shafts. A discharge port 602 is opened on one side of the outer end of the screening box 1, and a discharge port 603 is opened on the other side of the outer end of the screening box 1. An inclined plate is installed on one side of the inner wall of the screening box 1. When sand and gravel enter the screening box 1, they will fall on the top of the rotating rollers a6. The smaller sand and gravel will pass through the gaps between the rotating rollers a6 and fall onto the top of the inclined plate, and then the sand and gravel on its top are guided to the top of the rotating roller b601 with the highest height by the inclined plate. And the smaller sand and gravel will pass through the gaps between the rotating rollers b601 and fall onto the top of the guide plate 701. The gaps between the plurality of rotating rollers a6 are larger than the gaps between the plurality of rotating rollers b601. Therefore, when the sand and gravel pass through the rotating rollers a6 and the rotating rollers b601 in sequence, the sand and gravel can be screened multiple times.

[0030] Among them, one side of the top of the stone screening box 1 is connected to a feeding frame 7. A material guiding plate 701 is installed inside the stone screening box 1, and a through groove 702 is formed on the front surface of the stone screening box 1. When using this device, the sand and gravel to be screened are poured from the feeding frame 7 into the inside of the stone screening box 1 and fall onto the top of the rotating roller a 6. Then, the sand and gravel are screened by the rotating roller a 6 and the rotating roller b 601. The sand and gravel that are not filtered on the tops of the rotating roller a 6 and the rotating roller b 601 will be discharged from the discharge port 602 and the discharge port 603 in sequence. The sand and gravel that pass through the rotating roller a 6 and the rotating roller b 601 will fall onto the top of the material guiding plate 701, and then the material guiding plate 701 guides the sand and gravel on its top to the through groove 702 and discharges them outside the stone screening box 1 through the through groove 702.

[0031] Among them, one side of the outer end of the stone screening box 1 is connected to a cross plate 8. The bottom of the cross plate 8 is rotationally connected to the lead screw 2 through a bearing. The bottom of the lead screw 2 is connected to a hand wheel 801. One side of the outer end of the stone screening box 1 is connected to a side plate 802. Jack holes 803 are formed on the tops of both the side plate 802 and the hand wheel 801. An insertion rod 804 is arranged inside the jack hole 803. When the lead screw 2 is rotated, the cross plate 8 is used to support and fix the top end of the lead screw 2, and the cross plate 8 is rotationally connected to the lead screw 2 through a bearing to ensure the rotation of the lead screw 2. The hand wheel 801 facilitates the user to rotate the lead screw 2. When the lead screw 2 is rotated, the insertion rod 804 can be slid out of the jack hole 803 to rotate the lead screw 2. When the rotation of the lead screw 2 stops, the jack hole 803 on the top of the hand wheel 801 is rotated to align with the jack hole 803 on the top of the side plate 802, and then one end of the insertion rod 804 is inserted into the jack hole 803 to prevent the lead screw 2 from rotating self.

[0032] Working principle:

[0033] When using this device, the sand and gravel to be screened are poured from the feeding frame 7 into the inside of the stone screening box 1 and fall onto the top of the rotating roller a 6. Then, the sand and gravel are screened by the rotating roller a 6 and the rotating roller b 601. The unscreened sand and gravel on the tops of the rotating roller a 6 and the rotating roller b 601 will be discharged from the discharge port 602 and the discharge port 603 in sequence. The sand and gravel passing through the rotating roller a 6 and the rotating roller b 601 will fall onto the top of the guide plate 701. Then, the sand and gravel on its top are guided by the guide plate 701 to the through groove 702 and discharged outside the stone screening box 1 through the through groove 702. And the height of the baffle a 101 and the baffle b 102 can be adjusted by the lifting assembly to prevent the sand and gravel with too high height from being blocked on the outer side of the baffle a 101 and the baffle b 102. One side of the outer end of the stone screening box 1 is inlaid with an observation window, which is convenient for the user to view the lifting height of the baffle a 101 and the baffle b 102. When screening the sand and gravel, the exhaust fan 5 can be started to discharge the air inside the stone screening box 1 into the disassembly pipe 501 through the exhaust pipe 103. The floating dust in the stone screening box 1 can be sucked into the disassembly pipe 501 along with the air extraction of the exhaust fan 5, and then the dust entering the disassembly pipe 501 is filtered and intercepted by the dust filter screen 502, and the air can pass through the dust filter screen 502 and be discharged outside the disassembly pipe 501. Therefore, it can prevent the dust from being discharged outside the stone screening box 1.

[0034] In the above embodiments, the descriptions of the various embodiments have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0035] The above has introduced in detail a sand and gravel screening device for a landscaping project provided by the embodiments of the present application. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of the present application. Those of ordinary skill in the art should understand that: They can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. And these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A sand and gravel screening device for landscaping projects, characterized in that, Including: A stone screening box (1); A baffle a (101) and a baffle b (102) are arranged inside the stone screening box (1), and an exhaust pipe (103) is connected to one side of the outer end of the stone screening box (1); A lifting assembly arranged on one side of the outer end of the stone screening box (1) for adjusting the use height of the baffle a (101) and the baffle b (102), and the lifting assembly includes: a lead screw (2), a lifting plate (201), a movable plate (202) and a lead screw hole (203); A dust removal assembly arranged inside the exhaust pipe (103) for dust removal inside the stone screening box (1), and the dust removal assembly includes: an exhaust fan (5), a disassembly pipe (501) and a dust filter net (502).

2. The sand and gravel screening equipment for landscaping projects according to claim 1, wherein A lead screw (2) is arranged on one side of the outer end of the stone screening box (1), a lifting plate (201) and a movable plate (202) are arranged on the outer side of the lead screw (2), and lead screw holes (203) for threaded connection with the lead screw (2) are opened at the tops of the lifting plate (201) and the movable plate (202).

3. The sand and gravel screening equipment for landscaping projects according to claim 2, characterized in that, A connecting plate (3) is arranged at the top of the movable plate (202), vertical plates (301) are connected to both sides of the bottom of the connecting plate (3), the bottoms of the vertical plates (301) are connected to the movable plate (202), connecting rods (302) are connected to both sides of the outer end of the connecting plate (3), and one ends of the two connecting rods (302) are respectively connected to both sides of the outer end of the baffle a (101).

4. The sand and gravel screening equipment for landscaping projects according to claim 2, wherein Limit plates (4) are connected to both the top and the bottom of the lifting plate (201), an opening (401) is opened on one side of the outer end of the stone screening box (1), and limit grooves (402) for sliding connection with the limit plates (4) are opened on both sides of the inner wall of the opening (401), and one side of the outer end of the lifting plate (201) is connected to the baffle b (102).

5. The sand and gravel screening equipment for landscaping projects according to claim 1, characterized in that, The disassembly pipe (501) is threadedly connected to the bottom of the exhaust pipe (103), a dust filter net (502) and an exhaust fan (5) are installed inside the disassembly pipe (501), and the exhaust fan (5) is located directly below the dust filter net (502).

6. The sand and gravel screening equipment for landscaping projects according to claim 1, wherein, Multiple rotating rollers a (6) and multiple rotating rollers b (601) are rotatably connected to both sides of the inner wall of the stone screening box (1) through rotating shafts, a discharge port (602) is opened on one side of the outer end of the stone screening box (1), and a discharge port (603) is opened on the other side of the outer end of the stone screening box (1).

7. The sand and gravel screening equipment for landscaping projects according to claim 1, characterized in that, A feed frame (7) is connected to one side of the top of the stone screening box (1), a guide plate (701) is installed inside the stone screening box (1), and a through groove (702) is opened on the front of the stone screening box (1).

8. The sand and gravel screening equipment for landscaping projects according to claim 2, characterized in that, A cross plate (8) is connected to one side of the outer end of the stone screening box (1), the bottom of the cross plate (8) is rotatably connected to the lead screw (2) through a bearing, a hand wheel (801) is connected to the bottom of the lead screw (2), a side plate (802) is connected to one side of the outer end of the stone screening box (1), and insertion holes (803) are opened on both the side plate (802) and the top of the hand wheel (801), and an insertion rod (804) is arranged inside the insertion holes (803).

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