A sand and gravel screening equipment for construction

Abstract

The utility model discloses a sand and gravel screening device for construction, which relates to the technical field of screening for construction, and comprises a screening shell, wherein the front and rear side surfaces inside the screening shell are respectively fixedly connected to the front and rear ends of the screening assembly. The utility model can drive two L-shaped rods to reciprocate in the up and down directions through the mutual cooperation between the arranged double-axis motor, the rotating shaft 1, the rotating plate, the push rod and the pushing frame 2, and can drive the screening mesh plate and the screening frame to swing around the fixed rod 2 through the movement of the two L-shaped rods under the mutual cooperation between the arranged pushing frame 1 and the L-shaped plate 2, and can screen the sand and gravel falling on the top of the screening mesh plate through the swinging of the screening mesh plate, and the sand and gravel that have passed the screening directly fall through the screening mesh plate, and the sand and gravel that have not passed the screening mesh plate fall onto the material guide plate along the screening mesh plate through the swinging of the screening mesh plate, and then are discharged from the inside of the screening shell through the material guide plate.

Description

Technical Field

[0001] The utility model relates to a sand and gravel screening device, in particular to a sand and gravel screening device for building construction. Background Art

[0002] During the construction process, a large amount of sand and gravel and other materials are needed. However, due to the different sizes of sand and gravel, it may have an adverse effect on the construction of the building. Therefore, the sand and gravel need to be screened before construction.

[0003] At present, there are still some defects and deficiencies in the use of sand and gravel screening equipment. The specific areas that need to be improved are as follows:

[0004] Existing sand and gravel screening equipment will generate a lot of dust when in use, which will not only have a certain impact on the health of workers, but also cause serious pollution to the environment. Utility Model Content

[0005] The purpose of the utility model is to provide a sand and gravel screening device for construction, so as to solve the problem that the existing sand and gravel screening device mentioned in the above background technology will generate a lot of dust when in use, which will not only have a certain impact on the health of workers, but also cause serious pollution to the environment.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sand and gravel screening device for construction, comprising a screening shell, wherein the front and rear side surfaces inside the screening shell are respectively fixedly connected to the front and rear ends of the screening component, the front and rear sides of the screening component are respectively movably connected to the front and rear sides of the right end of the pushing component, the left end of the pushing component is fixedly connected to the left side surface inside the screening shell, the left side of the pushing component is fixedly connected to the right end of the rotating shaft 1, the rotating shaft 1 is movably connected to the screening shell with a connecting hole opened inside the left end, and the left end of the rotating shaft 1 is fixedly connected to a bevel gear Wheel one, the bevel gear one is meshed with bevel gear two for transmission, the bevel gear two is fixedly connected to the output shaft arranged at the upper end of the double-axis motor, the double-axis motor is fixedly connected to the upper end of the rotating shaft two through another output shaft arranged at the lower end thereof, the lower end of the rotating shaft two is provided with a stirring blade, and the stirring blade is arranged inside the water tank, the left end of the screening shell is fixedly connected with an exhaust fan, the lower end of the exhaust fan is provided with an air outlet pipe, the upper end of the exhaust fan is provided with an exhaust pipe, the right end of the exhaust pipe passes through the front and rear side walls of the screening shell relatively close to the side and is fixedly connected to the two exhaust hoods respectively.

[0007] As a preferred technical solution of the utility model, the dual-axis motor is fixedly connected to the left end of the screening shell through a motor base arranged at its right end, the lower end of the air outlet pipe is arranged inside the water tank, the lower end of the water tank is fixedly connected to the upper end of the bottom plate, and a drain pipe is arranged at the left end of the water tank, and a drain valve is arranged on the drain pipe.

[0008] As a preferred technical solution of the utility model, an L-shaped plate 1 is fixedly connected to the lower side of the air outlet duct, the lower end of the L-shaped plate 1 is fixedly connected to the upper end of the water tank, a support plate is movably connected to the rotating shaft 2, the right end of the support plate is fixedly connected to the left end of the screening shell, and four fixing columns are fixedly connected to the lower end of the screening shell, and the lower ends of the four fixing columns are fixedly connected to the upper end of the bottom plate.

[0009] As a preferred technical solution of the utility model, the relatively distant ends of the two exhaust hoods are respectively fixedly connected to the front and rear side surfaces inside the screening shell, and the screening shell is fixedly connected to the feed hopper through the feed port opened at its upper end.

[0010] As a preferred technical solution of the utility model, two fixing rods are fixedly connected to the front and rear side surfaces inside the screening shell, and the four fixing rods are grouped in pairs, and their relatively close ends are respectively fixedly connected to the front and rear ends of the guide plate, and the guide plate is located on the lower side of the right end of the screening assembly.

[0011] As a preferred technical solution of the utility model, the screening assembly includes a screening frame, a screening mesh plate is fixedly arranged inside the screening frame, two L-shaped plates 2 are fixedly connected to the front and rear ends of the screening frame, four L-shaped plates 2 are grouped in pairs and their lower ends are fixedly connected to the upper ends of two pushing frames 1, the two pushing frames 1 are respectively movably connected to the front and rear sides of the right end of the pushing assembly, a connecting block is fixedly connected to the lower side of the right end of the screening frame, the connecting block is movably connected to the fixing rod 2, and the front and rear ends of the fixing rod 2 are respectively fixedly connected to the front and rear side surfaces inside the screening shell.

[0012] As a preferred technical solution of the utility model, the pushing assembly includes a rotating plate, the left end of the rotating plate is fixedly connected to the right end of the rotating shaft one, the rotating plate is movably connected to the pushing frame two through a push rod arranged on the lower side of its right end, the right end of the pushing frame two is fixedly connected to two L-shaped rods, the right ends of the two L-shaped rods are relatively close to the sides and are respectively movably connected to the two pushing frames one, the right end of the pushing frame two is fixedly connected to two sliding sleeves, the two sliding sleeves are respectively movably connected to the two concave rods, and the left ends of the two concave rods are fixedly connected to the left side surface inside the screening shell.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model can drive the two L-shaped rods to reciprocate in the up and down directions through the mutual cooperation between the arranged double-axis motor, the rotating shaft 1, the rotating plate, the pushing rod and the pushing frame 2. The movement of the two L-shaped rods can drive the screening mesh plate and the screening frame to swing around the fixed rod 2 under the mutual cooperation between the arranged pushing frame 1 and the L-shaped plate 2. The swing of the screening mesh plate can screen the sand and gravel falling on it. The sand and gravel that pass the screening directly fall through the screening mesh plate, and the sand and gravel that do not pass the screening mesh plate are moved along the screening mesh plate through the swing of the screening mesh plate. The plate falls onto the guide plate and is then discharged from the interior of the screening shell through the guide plate. In the process of screening the sand and gravel, the exhaust fan, the exhaust pipe, the air outlet pipe and the exhaust hood cooperate with each other to suck the generated dust into the water tank, so that the device can achieve the dust removal effect. The cooperation between the rotating shaft 2 and the stirring blades can stir the water inside the water tank during the screening of the sand and gravel, thereby ensuring that the water can fully contact the air that enters the water tank and carries the dust, thereby improving the dust removal effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main cross-sectional three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the main three-dimensional structure of the utility model;

[0017] Figure 3 It is a right-side stereoscopic structural schematic diagram of the utility model;

[0018] Figure 4 This is a schematic diagram of the main three-dimensional structure of the screening assembly of the utility model;

[0019] Figure 5 It is a schematic diagram of the main three-dimensional structure of the driving component of the utility model.

[0020] In the figure: 1 bottom plate, 2 guide plate, 3 screening shell, 4 fixed column, 5 screening assembly, 51 fixed rod 2, 52 connecting block, 53 screening frame, 54 screening mesh plate, 55 pushing frame 1, 56 L-shaped plate 2, 6 exhaust hood, 7 feed hopper, 8 pushing assembly, 81 L-shaped rod, 82 sliding sleeve, 83 concave rod, 84 pushing frame 2, 85 push rod, 86 rotating plate, 9 water tank, 10 stirring blade, 11 rotating shaft 2, 12 drain pipe, 13 air outlet pipe, 14 L-shaped plate 1, 15 support plate, 16 dual-axis motor, 17 bevel gear 2, 18 bevel gear 1, 19 rotating shaft 1, 20 exhaust fan, 21 exhaust pipe, 22 fixed rod 1. DETAILED DESCRIPTION

[0021] 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.

[0022] like Figure 1-5 As shown, the utility model provides a technical solution: a sand and gravel screening device for construction, including a screening shell 3, the front and rear side surfaces inside the screening shell 3 are respectively fixedly connected to the front and rear ends of the screening component 5, the front and rear sides of the screening component 5 are respectively movably connected to the front and rear sides of the right end of the pushing component 8, the left end of the pushing component 8 is fixedly connected to the left side surface inside the screening shell 3, the left side of the pushing component 8 is fixedly connected to the right end of the rotating shaft 19, the rotating shaft 19 is movably connected to the screening shell 3 with a connecting hole opened inside the left end, the left end of the rotating shaft 19 is fixedly connected to a bevel gear 18, and the bevel gear 18 is connected to the bevel gear The bevel gear 17 is meshed for transmission, and the bevel gear 17 is fixedly connected to the output shaft arranged on the upper end of the double-axis motor 16. The rotation of the output shaft on the upper side of the double-axis motor 16 can drive the bevel gear 17 to rotate. The rotation of the bevel gear 17 can drive the screening component 5 to swing up and down around its right end under the cooperation between the bevel gear 18, the rotating shaft 19 and the pushing component 8, so that the sand and gravel falling into the screening component 5 can be screened. Through the swing of the screening component 5, qualified sand and gravel directly fall through the screening component 5, and unqualified sand and gravel follow the swing of the screening component 5. The sand and gravel are then discharged from the material guide plate 2. The double-axis motor 16 is fixedly connected to the upper end of the second rotating shaft 11 through another output shaft arranged at the lower end thereof. The lower end of the second rotating shaft 11 is provided with a stirring blade 10, and the stirring blade 10 is arranged inside the water tank 9. The left end of the screening shell 3 is fixedly connected to the exhaust fan 20, the lower end of the exhaust fan 20 is provided with an air outlet pipe 13, and the upper end of the exhaust fan 20 is provided with an exhaust pipe 21. The right end of the exhaust pipe 21 passes through the front and rear side walls of the screening shell 3 and is fixedly connected to the two exhaust hoods 6 respectively. In the process of screening the sand and gravel, the exhaust fan 20 is provided with an exhaust pipe 13. The machine 20, the exhaust pipe 21, the exhaust hood 6 and the air outlet pipe 13 cooperate with each other to draw the dust generated in the sand and gravel screening process into the water tank 9, so that the dust in the air contacts with the water inside the water tank 9, thereby achieving the dust removal effect of the device. In the process of screening the sand and gravel, the rotation of the lower output shaft of the dual-axis motor 16 can drive the stirring blade 10 to rotate under the action of the set rotating shaft 11, thereby realizing the stirring process of the water inside the water tank 9, so that the water can fully contact with the air entering the water tank 9, thereby ensuring the dust removal effect of the device.

[0023] The double-axis motor 16 is fixedly connected to the left end of the screening housing 3 through the motor seat arranged at the right end thereof, the lower end of the air outlet pipe 13 is arranged inside the water tank 9, the lower end of the water tank 9 is fixedly connected to the upper end of the bottom plate 1, and a drain pipe 12 is arranged at the left end of the water tank 9. An L-shaped plate 14 is fixedly connected to the lower side of the air outlet pipe 13, and the lower end of the L-shaped plate 14 is fixedly connected to the upper end of the water tank 9. A support plate 15 is movably connected to the rotating shaft 11, and the right end of the support plate 15 is fixedly connected to the left end of the screening housing 3. Four fixing columns 4 are fixedly connected to the lower end of the screening housing 3, and the lower ends of the four fixing columns 4 are all fixedly connected to the upper end of the bottom plate 1 The relatively distant ends of the two exhaust hoods 6 are respectively fixedly connected to the front and rear side surfaces inside the screening shell 3. The screening shell 3 is fixedly connected to the feed hopper 7 through the feed port opened at its upper end. Two fixing rods 22 are fixedly connected to the front and rear side surfaces inside the screening shell 7. The four fixing rods 22 are grouped in pairs, and their relatively close ends are respectively fixedly connected to the front and rear ends of the guide plate 2. The stability of the air outlet duct 13 during use can be ensured by the set L-shaped plate 14, the support plate 15 can support the rotating shaft 11, and the fixing rod 22 can fix the guide plate 2.

[0024] The screening assembly 5 comprises a screening frame 53, a screening mesh plate 54 is fixedly arranged inside the screening frame 53, two L-shaped plates 56 are fixedly connected to the front and rear ends of the screening frame 53, and the lower ends of the four L-shaped plates 56 are fixedly connected to the upper ends of the two pushing frames 55 in pairs, and the two pushing frames 55 are movably connected to the front and rear sides of the right end of the pushing assembly 8, respectively. A connecting block 52 is fixedly connected to the lower side of the right end of the screening frame 53, and the connecting block 52 is movably connected to the fixing rod 51, and the fixing rod 51 is movably connected to the fixing rod 51. The front and rear ends of 1 are fixedly connected to the front and rear side surfaces inside the screening shell 3 respectively. Through the cooperation between the set pushing component 8, the L-shaped plate 2 56 and the pushing frame 1 55, the screening frame 53 and the connecting block 52 can be driven to swing around the fixed rod 2 51 during the screening of sand and gravel, thereby realizing the screening process of the sand and gravel falling on the screening mesh plate 54. During the swinging process of the screening frame 53, unqualified sand and gravel fall onto the guide plate 2 along with the screening mesh plate 54 and the screening frame 53.

[0025] The pushing assembly 8 includes a rotating plate 86, the left end of which is fixedly connected to the right end of the rotating shaft 19, and the rotating plate 86 is movably connected to the pushing frame 84 through a push rod 85 arranged at the lower side of its right end. The right end of the pushing frame 84 is fixedly connected to two L-shaped rods 81, and the right ends of the two L-shaped rods 81 are movably connected to the two pushing frames 1 55 respectively. The right end of the pushing frame 84 is fixedly connected to two sliding sleeves 82, and the two sliding sleeves 82 are movably connected to the two concave rods 83 respectively. The left ends of the two concave rods 83 are fixedly connected to the left side surface inside the screening shell 3, through The rotation of the rotating shaft 19 can drive the rotating plate 86 to rotate. Through the rotation of the rotating plate 86, the two L-shaped rods 81 can be driven to move in the up and down directions under the mutual cooperation between the set push rod 85 and the pushing frame 2 84. While the two L-shaped rods 81 move up and down, the mutual cooperation between the set pushing frame 1 55 and the L-shaped plate 2 56 can achieve the effect of driving the screening frame 53 to swing around the fixed rod 2 51. The mutual cooperation between the set sliding sleeve 82 and the concave rod 83 can limit the movement direction of the pushing frame 2 84.

[0026] The operating steps of the utility model are:

[0027] When the device is used to screen sand and gravel, first add a proper amount of water to the inside of the water tank 9, then start the double-shaft motor 16 and the exhaust fan 20, and the rotation of the output shaft of the double-shaft motor 16 can drive the rotating shaft 19 and the rotating shaft 2 11 to rotate, and the rotation of the rotating shaft 2 11 can achieve the stirring process of the water inside the water tank 9 under the action of the provided stirring blade 10, and the rotation of the rotating shaft 19 can drive the two L-shaped rods 81 to reciprocate in the up and down directions under the cooperation between the provided rotating plate 86, the push rod 85 and the pushing frame 2 84, and the movement of the two L-shaped rods 81 can be carried out on the provided pushing frame 1 55 and the L-shaped plate 2 56. Under the action of , the screening frame 53 and the screening mesh plate 54 can be driven to swing around the fixed rod 2 51. At this time, the sand and gravel are put into the interior of the screening shell 3 through the feed hopper 7. The swing of the screening mesh plate 54 can screen the sand and gravel falling thereon. Qualified sand and gravel fall directly through the screening mesh plate 54, and unqualified sand and gravel fall onto the guide plate 2 along the swing of the screening mesh plate 54, and then are discharged from the interior of the screening shell 3 through the guide plate 2. During the screening process, the exhaust fan 20, the exhaust pipe 21, the exhaust hood 6 and the air outlet pipe 13 cooperate with each other to draw the generated dust into the water tank 9, thereby achieving the dust removal effect.

[0028] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the present invention, unless otherwise clearly stipulated and limited, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0030] 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 and gravel screening device for construction, comprising a screening housing (3), characterized in that: The front and rear side surfaces inside the screening shell (3) are respectively fixedly connected to the front and rear ends of the screening assembly (5); the front and rear sides of the screening assembly (5) are respectively movably connected to the front and rear sides of the right end of the pushing assembly (8); the left end of the pushing assembly (8) is fixedly connected to the left side surface inside the screening shell (3); the left side of the pushing assembly (8) is fixedly connected to the right end of the rotating shaft 1 (19); the rotating shaft 1 (19) is movably connected to the screening shell (3) with a connecting hole provided inside the left end; the left end of the rotating shaft 1 (19) is fixedly connected to a bevel gear 1 (18); the bevel gear 1 (18) is meshed with a bevel gear 2 (17) for transmission; the bevel gear 2 (17) is meshed with the bevel gear 1 (18) and the bevel gear 2 (17) is meshed with the bevel gear 1 (18). An output shaft is fixedly connected at the upper end of the double-shaft motor (16); the double-shaft motor (16) is fixedly connected to the upper end of the second rotating shaft (11) through another output shaft arranged at the lower end thereof; a stirring blade (10) is arranged at the lower end of the second rotating shaft (11); and the stirring blade (10) is arranged inside the water tank (9); an exhaust fan (20) is fixedly connected at the left end of the screening shell (3); an air outlet pipe (13) is arranged at the lower end of the exhaust fan (20); an exhaust pipe (21) is arranged at the upper end of the exhaust fan (20); the right end of the exhaust pipe (21) passes through the front and rear side walls of the screening shell (3) and is fixedly connected to the two exhaust hoods (6) respectively.

2. The sand and gravel screening equipment for construction according to claim 1, characterized in that: The dual-axis motor (16) is fixedly connected to the left end of the screening shell (3) via a motor seat arranged at the right end thereof, the lower end of the air outlet pipe (13) is arranged inside the water tank (9), the lower end of the water tank (9) is fixedly connected to the upper end of the bottom plate (1), and a drain pipe (12) is arranged at the left end of the water tank (9).

3. The sand and gravel screening equipment for construction according to claim 2 is characterized in that: The lower side of the air outlet pipe (13) is fixedly connected to an L-shaped plate (14), the lower end of which is fixedly connected to the upper end of the water tank (9), the rotating shaft (11) is movably connected to a support plate (15), the right end of which is fixedly connected to the left end of the screening shell (3), the lower end of which is fixedly connected to four fixing columns (4), the lower ends of which are all fixedly connected to the upper end of the bottom plate (1).

4. The sand and gravel screening equipment for construction according to claim 1, characterized in that: The relatively remote ends of the two exhaust hoods (6) are respectively fixedly connected to the front and rear side surfaces inside the screening shell (3), and the screening shell (3) is fixedly connected to the feed hopper (7) via a feed opening opened at the upper end thereof.

5. The sand and gravel screening equipment for construction according to claim 1, characterized in that: Two fixing rods (22) are fixedly connected to both the front and rear side surfaces inside the screening shell (3), and the four fixing rods (22) are arranged in groups of two, and their relatively close ends are fixedly connected to the front and rear ends of the guide plate (2) respectively.

6. The sand and gravel screening equipment for construction according to claim 1, characterized in that: The screening assembly (5) comprises a screening frame (53), a screening mesh plate (54) is fixedly arranged inside the screening frame (53), two L-shaped plates (56) are fixedly connected to the front and rear ends of the screening frame (53), four L-shaped plates (56) are arranged in pairs, and their lower ends are fixedly connected to the upper ends of two push frames (55), respectively, and the two push frames (55) are movably connected to the front and rear sides of the right end of the push assembly (8), respectively, and a connecting block (52) is fixedly connected to the lower side of the right end of the screening frame (53), and the connecting block (52) is movably connected to the fixing rod (51), and the front and rear ends of the fixing rod (51) are fixedly connected to the front and rear side surfaces inside the screening shell (3), respectively.

7. The sand and gravel screening equipment for construction according to claim 6, characterized in that: The pushing assembly (8) comprises a rotating plate (86), the left end of which is fixedly connected to the right end of the rotating shaft (19), the rotating plate (86) is movably connected to the pushing frame (84) (84) via a push rod (85) arranged at the lower side of the right end thereof, the right end of the pushing frame (84) (84) is fixedly connected to two L-shaped rods (81), the right ends of the two L-shaped rods (81) are movably connected to the two pushing frames (55) (55) at their relatively close sides, the right end of the pushing frame (84) (84) is fixedly connected to two sliding sleeves (82), the two sliding sleeves (82) are movably connected to the two concave rods (83) (83), and the left ends of the two concave rods (83) are fixedly connected to the left side surface inside the screening shell (3).

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