Sand screening device for earth-rock engineering construction

Abstract

The sand screening device comprises a shell, a motor and a sand screening barrel, the right side of the shell is fixedly connected with the left side of the motor, the output end of the motor extends into the shell and is fixedly connected with the right side of the sand screening barrel, the left side of the sand screening barrel extends out of the shell, and the output end of the motor is fixedly connected with the right side of the sand screening barrel. And the inner wall of the sand screening barrel is fixedly connected with the surface of a spiral pushing plate, the bottom of the shell communicates with the top of a discharging pipe, the top of the shell is fixedly connected with an auxiliary shell, the right side of the interior of the auxiliary shell is fixedly connected with a dust bag, and the right side of the auxiliary shell is fixedly connected with a sucking pump. According to the sand screening device, the outer shell is arranged, dust is limited, the speed that the dust drifts outwards is reduced, the dust is extracted through the air extracting pump, the auxiliary shell and the air inducing cover, the dust is adsorbed through the dust bag, workers can treat the dust conveniently, and the sand screening device has the dust suppression function.

Description

Technical Field

[0001] The utility model relates to the technical field of earthwork engineering, in particular to a sand screening device for earthwork engineering construction. Background Art

[0002] Earthwork is one of the main projects in construction engineering, including all aspects of earthwork excavation, filling, transportation, drainage, precipitation, etc. When separating sand and stone, a sand screening device is needed. For example, the authorization announcement number is 218797123U, a sand screening device for earthwork construction, including a sand screening bucket, a ring track, a guide plate, a roller, a support platform, a gear ring, a motor, a gear, a support block, a discharge plate, a brush column, a support plate, a support foot, a funnel and a support column, to separate the sand from the funnel. The bucket is poured into the sand screening bucket, the funnel is fixed by the support column, the motor is supported by the support block, the gear is driven by the motor to rotate, the gear drives the gear ring to rotate, the gear ring drives the sand screening bucket to rotate, the roller assists the sand screening bucket to rotate through the ring track, the roller is supported by the support platform, the sand is screened by the sand screening bucket, the fine sand falls from the sand screening bucket onto the discharge plate, the coarse sand is moved out of the sand screening bucket through the guide plate, and when the sand screening bucket rotates, the brush column is driven to rotate through friction, and the sand screening bucket is cleaned by the brush column at the same time.

[0003] With regard to the above-mentioned related technologies, there are the following defects: the sand screening device will generate a large amount of dust when screening and separating sand and gravel, but the sand screening device does not have the function of dust suppression. The dust will float everywhere, making it easy for workers to drop dust into their bodies, thereby causing harm to the workers.

[0004] Therefore, it is necessary to redesign the sand screening device to effectively prevent the phenomenon that it lacks the dust suppression function. Utility Model Content

[0005] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide a sand screening device for earthwork engineering construction, which has the advantage of enabling the sand screening device to have a dust suppression function, thereby solving the problem that the sand screening device does not have a dust suppression function.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sand screening device for earthwork engineering construction, comprising a housing, a motor, a sand screening cylinder, a spiral push plate and a discharge pipe;

[0007] The right side of the shell is fixedly connected to the left side of the motor, the output end of the motor extends to the inside of the shell and is fixedly connected to the right side of the sand screening cylinder, the left side of the sand screening cylinder extends to the outside of the shell, the inner wall of the sand screening cylinder is fixedly connected to the surface of the spiral push plate, and the bottom of the shell is connected to the top of the discharge pipe;

[0008] An auxiliary shell is fixedly connected to the top of the outer shell, a dust bag is fixedly connected to the right side of the auxiliary shell, an air pump is fixedly connected to the right side of the auxiliary shell, an air outlet of the air pump passes through the auxiliary shell and extends to the inside of the dust bag, an air hood is fixedly connected to the top of the inner part of the outer shell, and an air outlet of the air hood passes through the outer shell and extends to the inside of the auxiliary shell.

[0009] As a preferred embodiment of the utility model, the surface of the sand screening cylinder is fixedly connected with annular frames respectively located on both sides of the induced draft hood, and the inner wall of the outer shell is fixedly connected with a limiting ring, and the inner side of the limiting ring extends to the interior of the annular frame.

[0010] As a preferred embodiment of the utility model, a bushing is fixedly connected to the inner side of the limit ring, a solid lubricant is fixedly connected to the inner side of the bushing, and the inner side of the solid lubricant is movably connected to the inner wall of the annular frame.

[0011] As a preferred embodiment of the utility model, the right side of the shell is fixedly connected to a support plate located at the bottom of the motor, the top of the support plate is fixedly connected to the bottom of the motor, the bottom of the support plate is fixedly connected to a reinforcing rib, and the left side of the reinforcing rib is fixedly connected to the right side of the shell.

[0012] As a preferred embodiment of the utility model, the bottom of the shell is fixedly connected with support blocks respectively located on both sides of the discharge pipe, the interior of the support block is fixedly connected with wear-resistant rubber, and the bottom of the wear-resistant rubber extends to the outside of the support block.

[0013] As a preferred embodiment of the present invention, the top of the auxiliary shell is fixedly connected to a cover plate via a snap-fit ​​structure, the bottom of the cover plate extends to the inside of the auxiliary shell, and the top of the cover plate is fixedly connected to a handle.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model limits the dust by setting up an outer shell, slows down the speed of dust drifting outward, extracts the dust by using an exhaust pump, an auxiliary shell and an induced draft hood, and adsorbs the dust by a dust bag, so that workers can handle the dust conveniently and the sand screening device has the dust suppression function.

[0016] 2. The utility model supports the sand screening cylinder by providing an annular frame and a limit ring, shares the force exerted by the sand screening cylinder on the motor output end, and avoids the connection between the sand screening cylinder and the motor output end from breaking due to gravity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a three-dimensional diagram of the local parts of the sand screening cylinder of the utility model;

[0019] Figure 3 This is a front view cross-sectional schematic diagram of the structural shell of the utility model;

[0020] Figure 4 This is a front view and cross-sectional schematic diagram of the ring frame structure of the utility model;

[0021] Figure 5 It is a front view and cross-sectional schematic diagram of the auxiliary shell of the structure of the utility model.

[0022] In the figure: 1. outer shell; 2. motor; 3. sand screening cylinder; 4. spiral push plate; 5. discharge pipe; 6. auxiliary shell; 7. dust bag; 8. vacuum pump; 9. induced draft hood; 10. annular frame; 11. limit ring; 12. bushing; 13. solid lubricant; 14. support plate; 15. reinforcing rib; 16. support block; 17. wear-resistant rubber; 18. cover plate; 19. handle. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figures 1 to 5 As shown, the utility model provides a sand screening device for earthwork engineering construction, comprising a housing 1, a motor 2, a sand screening cylinder 3, a spiral push plate 4 and a discharge pipe 5;

[0025] The right side of the housing 1 is fixedly connected to the left side of the motor 2, the output end of the motor 2 extends to the inside of the housing 1 and is fixedly connected to the right side of the sand screening cylinder 3, the left side of the sand screening cylinder 3 extends to the outside of the housing 1, the inner wall of the sand screening cylinder 3 is fixedly connected to the surface of the spiral push plate 4, and the bottom of the housing 1 is connected to the top of the discharge pipe 5;

[0026] An auxiliary shell 6 is fixedly connected to the top of the outer shell 1, a dust bag 7 is fixedly connected to the right side of the auxiliary shell 6, an exhaust pump 8 is fixedly connected to the right side of the auxiliary shell 6, an exhaust port of the exhaust pump 8 passes through the auxiliary shell 6 and extends to the inside of the dust bag 7, an air hood 9 is fixedly connected to the top of the inner part of the outer shell 1, and an air outlet of the air hood 9 passes through the outer shell 1 and extends to the inside of the auxiliary shell 6.

[0027] refer to Figure 4 The surface of the sand screening cylinder 3 is fixedly connected with annular frames 10 respectively located on both sides of the induced draft hood 9 , and the inner wall of the outer shell 1 is fixedly connected with a limiting ring 11 , and the inner side of the limiting ring 11 extends to the inside of the annular frame 10 .

[0028] As a technical optimization solution of the utility model, the sand screening cylinder 3 is supported by providing an annular frame 10 and a limiting ring 11, so as to share the force applied by the sand screening cylinder 3 to the output end of the motor 2, thereby avoiding the connection between the sand screening cylinder 3 and the output end of the motor 2 from breaking due to gravity.

[0029] refer to Figure 4 A bushing 12 is fixedly connected to the inner side of the limiting ring 11 , a solid lubricant 13 is fixedly connected to the inner side of the bushing 12 , and the inner side of the solid lubricant 13 is movably connected to the inner wall of the annular frame 10 .

[0030] As a technical optimization solution of the utility model, by providing a bushing 12 and a solid lubricant 13, lubrication is performed between the limit ring 11 and the annular frame 10, thereby reducing the wear of the limit ring 11 and the annular frame 10 and extending the service life of the limit ring 11 and the annular frame 10.

[0031] refer to Figure 3 A support plate 14 located at the bottom of the motor 2 is fixedly connected to the right side of the housing 1, the top of the support plate 14 is fixedly connected to the bottom of the motor 2, the bottom of the support plate 14 is fixedly connected to a reinforcing rib 15, and the left side of the reinforcing rib 15 is fixedly connected to the right side of the housing 1.

[0032] As a technical optimization solution of the utility model, the motor 2 is supported by providing a support plate 14 and a reinforcing rib 15, thereby strengthening the firmness of the connection between the motor 2 and the housing 1 and preventing the motor 2 from breaking at the connection with the housing 1 due to its own weight.

[0033] refer to Figure 3 The bottom of the housing 1 is fixedly connected with support blocks 16 located on both sides of the discharge pipe 5 , and the interior of the support block 16 is fixedly connected with a wear-resistant rubber 17 , and the bottom of the wear-resistant rubber 17 extends to the outside of the support block 16 .

[0034] As a technical optimization solution of the utility model, the outer shell 1 is supported by providing a support block 16 and a wear-resistant rubber 17 to avoid friction between the outer shell 1 and the ground, thereby preventing the outer shell 1 from being worn and extending the service life of the outer shell 1.

[0035] refer to Figure 5 The top of the auxiliary shell 6 is fixedly connected to a cover plate 18 via a snap-fit ​​structure, the bottom of the cover plate 18 extends to the inside of the auxiliary shell 6 , and the top of the cover plate 18 is fixedly connected to a handle 19 .

[0036] As a technical optimization solution of the utility model, a handle 19 is provided to provide workers with a force application position for moving the cover plate 18. Since the cover plate 18 is connected to the auxiliary shell 6 by a snap-fit ​​structure, the cover plate 18 is easy to disassemble and assemble, making it convenient for workers to replace the dust bag 7.

[0037] The working principle and use process of the utility model are as follows: when in use, the motor 2 is started first, and the motor 2 drives the sand screening cylinder 3 to rotate through the output end. The sand screening cylinder 3 sorts the sand and gravel inside it by rotation, but this will generate a large amount of dust. At this time, the vacuum pump 8 is started, and the vacuum pump 8 sucks the air in the outer shell 1 into the auxiliary shell 6 through the induced draft hood 9, and the dust will follow the air into the auxiliary shell 6. When the air passes through the dust bag 7, the dust bag 7 will absorb the dust in the air to prevent the dust from floating outside.

[0038] In summary, the sand screening device used in the earthwork engineering construction restricts dust by setting up an outer shell 1, slows down the speed of dust drifting outward, extracts dust by using an exhaust pump 8, an auxiliary shell 6 and an induced draft hood 9, and adsorbs dust by using a dust bag 7, so that workers can handle dust conveniently and the sand screening device has a dust suppression function.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sand screening device for earthwork construction, characterized in that: It comprises a housing (1), a motor (2), a sand screening cylinder (3), a spiral push plate (4) and a discharge pipe (5); The right side of the housing (1) is fixedly connected to the left side of the motor (2), the output end of the motor (2) extends to the inside of the housing (1) and is fixedly connected to the right side of the sand screening cylinder (3), the left side of the sand screening cylinder (3) extends to the outside of the housing (1), the inner wall of the sand screening cylinder (3) is fixedly connected to the surface of the spiral push plate (4), and the bottom of the housing (1) is connected to the top of the discharge pipe (5); The top of the outer shell (1) is fixedly connected to an auxiliary shell (6), the right side of the interior of the auxiliary shell (6) is fixedly connected to a dust bag (7), the right side of the auxiliary shell (6) is fixedly connected to an air pump (8), the air outlet of the air pump (8) passes through the auxiliary shell (6) and extends to the interior of the dust bag (7), the top of the interior of the outer shell (1) is fixedly connected to an air hood (9), the air outlet of the air hood (9) passes through the outer shell (1) and extends to the interior of the auxiliary shell (6).

2. The sand screening device for earthwork construction according to claim 1 is characterized in that: The surface of the sand screening cylinder (3) is fixedly connected to annular frames (10) respectively located on both sides of the induced draft hood (9), and the inner wall of the outer shell (1) is fixedly connected to a limiting ring (11), the inner side of the limiting ring (11) extending to the inside of the annular frame (10).

3. The sand screening device for earthwork construction according to claim 2 is characterized in that: The inner side of the limiting ring (11) is fixedly connected to a bushing (12), the inner side of the bushing (12) is fixedly connected to a solid lubricant (13), and the inner side of the solid lubricant (13) is movably connected to the inner wall of the annular frame (10).

4. The sand screening device for earthwork construction according to claim 1 is characterized in that: A support plate (14) located at the bottom of the motor (2) is fixedly connected to the right side of the housing (1), the top of the support plate (14) is fixedly connected to the bottom of the motor (2), the bottom of the support plate (14) is fixedly connected to a reinforcing rib (15), and the left side of the reinforcing rib (15) is fixedly connected to the right side of the housing (1).

5. The sand screening device for earthwork construction according to claim 1, characterized in that: The bottom of the housing (1) is fixedly connected to support blocks (16) located on both sides of the discharge pipe (5), respectively; the interior of the support block (16) is fixedly connected to wear-resistant rubber (17); the bottom of the wear-resistant rubber (17) extends to the outside of the support block (16).

6. The sand screening device for earthwork construction according to claim 1, characterized in that: The top of the auxiliary shell (6) is fixedly connected to a cover plate (18) via a snap-fit ​​structure, the bottom of the cover plate (18) extends into the interior of the auxiliary shell (6), and the top of the cover plate (18) is fixedly connected to a handle (19).

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