Multi-stage sand screening device for constructional engineering

Abstract

The utility model provides a multi-stage sand screening device for constructional engineering, and relates to the technical field of constructional engineering. The multistage sand screening device for constructional engineering comprises a device base, a box body is arranged at the top of the device base, a vibration assembly is arranged between the box body and the device base, a discharging hopper is installed at the bottom of the box body, a first screening plate body and a second screening plate body are arranged in the box body, and a containing groove is formed in one side of the interior of the box body; and a gear is arranged on the front side of the box body. According to the multi-stage sand screening device for constructional engineering, a gear drives a round rod to rotate in a containing groove in a reciprocating mode through a rotating rod, vertical swinging of a baffle is achieved, through the arrangement of the baffle, large particles screened out through a first screening plate body can be blocked, and the situation that part of the screened large particles directly fall on the discharging end of a second screening plate body is avoided; and the baffle swings up and down, so that the materials can be prevented from being left on the baffle.

Description

Technical Field

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

[0002] The most important part of construction projects is concrete construction, and the main materials used in concrete construction are sand, cement and gravel. The coarseness and quality of sand directly affects the quality of concrete solidification, and also directly affects the quality of the entire construction project.

[0003] The present publication number is CN217963525U, a sand screening machine for construction engineering, comprising a screening box, a scattering mechanism for breaking up yellow sand is arranged on the top of the screening box, a screening mechanism for screening yellow sand is arranged inside the screening box, and a base frame is fixedly installed on the bottom of the screening box.

[0004] Although there are many benefits in the above scheme, there are also the following disadvantages: the first sieve plate makes it easier to screen large particles of yellow sand, and the second sieve plate makes it easier to screen medium-sized particles of yellow sand. Since there is no baffle between the first sieve plate and the second sieve plate, some of the large particles screened by the first sieve plate will directly fall on the discharge end of the second sieve plate and be directly discharged from the second sieve plate, which reduces the practicability of the device. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The purpose of the utility model is to provide a multi-stage sand screening device for construction projects in order to solve the above-mentioned problems, so as to solve the problem in the prior art that large particles of yellow sand are screened through the first sieve plate, and medium-sized particles of yellow sand are screened through the second sieve plate. Since no baffle is provided between the first sieve plate and the second sieve plate, some large particles screened out by the first sieve plate will directly fall on the discharge end of the second sieve plate and be directly discharged from the second sieve plate, thereby reducing the practicability of the device.

[0007] (II) Technical solution

[0008] The utility model is realized by the following technical scheme: a multi-stage sand screening device for construction engineering, comprising a device base, a box body is provided on the top of the device base, a vibration assembly is provided between the box body and the device base, a discharge hopper is installed at the bottom of the box body, a first sieve plate body and a second sieve plate body are provided inside the box body, a placement groove is opened on one side of the box body, a gear is provided on the front side of the box body, a rotating rod is fixedly connected to the rear side of the gear, one end of the rotating rod passes through the box body and is rotatably connected to the box body, the rotating rod is arranged inside the placement groove, and the rotating rod is arranged inside the placement groove. A round rod is fixedly connected to the outer side of the moving rod, and the round rod is arranged inside the placement groove and in contact with the box body; a baffle is fixedly connected to the outer side of the round rod, and the baffle is arranged between the first screen plate body and the second screen plate body; a rack is meshingly connected to the outer side of the gear, and a slider is fixedly connected to the top of the rack, and an L-shaped slide rod is slidably connected to the inner side of the slider, and the L-shaped slide rod is fixedly connected to the front side of the box body; one end of the rack is fixedly connected to a connecting rod, and a driving assembly is provided at one end of the connecting rod. The arrangement of the L-shaped slide rod and the slider serves as a sliding support for the rack.

[0009] Preferably, the vibration assembly includes two fixing plates, both of which are fixedly connected to two sides of the box body, and two telescopic rods are fixedly connected to the bottom of the fixing plates, and both of which are fixedly connected to the base of the device.

[0010] Preferably, a return spring is sleeved on the outer side of the telescopic rod, and the upper and lower ends of the return spring are fixedly connected to the fixing plate and the device base respectively, and a vibration motor is installed at the bottom of the fixing plate.

[0011] Preferably, long grooves are provided on both sides of the box body, and the two long grooves are communicated with the interior of the box body. The first sieve plate body is fixedly connected to one side of the interior of the box body, and one end of the first sieve plate body passes through one of the long grooves and is fixedly connected to the box body.

[0012] Preferably, the second sieve plate body is fixedly connected to the other side of the interior of the box, and one end of the second sieve plate body passes through another elongated slot and is fixedly connected to the box.

[0013] Preferably, the driving assembly includes a rotating disk, which is arranged at one end of a connecting rod, a swing rod is provided between the rotating disk and the connecting rod, a mounting groove is opened at one end of the connecting rod, one end of the swing rod is arranged inside the mounting groove and is rotatably connected to the connecting rod, a connecting column is fixedly connected to the front side of the rotating disk, one end of the connecting column passes through the swing rod and is rotatably connected to the swing rod.

[0014] Preferably, a mounting seat is fixedly connected to the front side of the device base, a driving motor is fixedly connected to the top of the mounting seat, and an output end of the driving motor is fixedly connected to the rotating disk.

[0015] The utility model provides a multi-stage sand screening device for construction engineering, which has the following beneficial effects:

[0016] 1. In the multi-stage sand screening device for construction projects, the gear drives the round rod to reciprocate inside the placement slot through the rotating rod, so as to realize the up and down swing of the baffle. Through the setting of the baffle, the large particles screened out by the first screen plate body can be blocked to prevent some of the screened large particles from falling directly on the discharge end of the second screen plate body, causing direct discharge. The up and down swing of the baffle can prevent the material from remaining on the baffle.

[0017] 2. In the multi-stage sand screening device for construction projects, when the two vibration motors are in a vibrating state, a plurality of return springs work elastically to realize the vibration of the box body, thereby improving the discharge effect of the first screen plate body and the second screen plate body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 A magnified view of the structure of part A;

[0020] Figure 3 This is a schematic diagram of the baffle structure of the utility model;

[0021] Figure 4 It is a cross-sectional view of the box body of the present utility model.

[0022]

Main component symbol description

[0023] 1. Device base; 2. Box body; 3. Fixed plate; 4. Telescopic rod; 5. Reset spring; 6. Vibration motor; 7. First sieve plate body; 8. Second sieve plate body; 9. Long groove; 10. Discharge hopper; 11. Placement groove; 12. Round rod; 13. Rotating rod; 14. Baffle; 15. Gear; 16. Rack; 17. Sliding block; 18. L-shaped sliding bar; 19. Connecting rod; 20. Swinging rod; 21. Rotating disk; 22. Connecting column; 23. Mounting groove. DETAILED DESCRIPTION

[0024] The embodiment of the utility model provides a multi-stage sand screening device for construction engineering.

[0025] See also Figure 1 , Figure 2 , Figure 3 and Figure 4, including a device base 1, a box body 2 is provided on the top of the device base 1, a vibration assembly is provided between the box body 2 and the device base 1, a discharge hopper 10 is installed at the bottom of the box body 2, a first sieve plate body 7 and a second sieve plate body 8 are provided inside the box body 2, long grooves 9 are provided on both sides of the box body 2, and the two long grooves 9 are communicated with the inside of the box body 2, the first sieve plate body 7 is fixedly connected to one side of the inside of the box body 2, one end of the first sieve plate body 7 passes through one of the long grooves 9 and is fixedly connected to the box body 2, the second sieve plate body 8 is fixedly connected to the other side of the inside of the box body 2, one end of the second sieve plate body 8 passes through another long groove 9 and is fixedly connected to the box body 2, a placement groove 11 is provided on one side of the inside of the box 2, and a gear 15 is provided on the front side of the box 2, A rotating rod 13 is fixedly connected to the rear side of the gear 15, one end of the rotating rod 13 passes through the box body 2 and is rotatably connected to the box body 2, the rotating rod 13 is arranged inside the placement groove 11, and a round rod 12 is fixedly connected to the outside of the rotating rod 13, the round rod 12 is arranged inside the placement groove 11 and contacts the box body 2, a baffle 14 is fixedly connected to the outside of the round rod 12, and the baffle 14 is arranged between the first sieve plate body 7 and the second sieve plate body 8, a rack 16 is meshingly connected to the outside of the gear 15, a slider 17 is fixedly connected to the top of the rack 16, an L-shaped slide rod 18 is slidably connected to the inner side of the slider 17, the L-shaped slide rod 18 is fixedly connected to the front side of the box body 2, one end of the rack 16 is fixedly connected to a connecting rod 19, and a driving assembly is provided at one end of the connecting rod 19.

[0026] The driving assembly includes a rotating disk 21, which is arranged at one end of the connecting rod 19, a swing rod 20 is arranged between the rotating disk 21 and the connecting rod 19, a mounting groove 23 is opened at one end of the connecting rod 19, one end of the swing rod 20 is arranged inside the mounting groove 23 and is rotatably connected to the connecting rod 19, a connecting column 22 is fixedly connected to the front side of the rotating disk 21, one end of the connecting column 22 passes through the swing rod 20 and is rotatably connected to the swing rod 20, a mounting seat is fixedly connected to the front side of the device base 1, a driving motor is fixedly connected to the top of the mounting seat, and the output end of the driving motor is fixedly connected to the rotating disk 21.

[0027] Specifically, the drive motor is started. The drive motor model is not specifically limited and is subject to the adapted device. The output end of the drive motor drives the rotating disk 21 to rotate, and the rotating disk 21 drives the connecting column 22 to perform eccentric motion. The connecting column 22 rotates through the swing rod 20 and the connecting rod 19, so that the connecting rod 19 drives the rack 16 to perform a linear reciprocating motion, and the slider 17 slides on the L-shaped slide rod 18;

[0028] The rack 16 is meshed with the gear 15, and the gear 15 drives the round rod 12 to reciprocate inside the placement groove 11 through the rotating rod 13, so as to realize the up and down swing of the baffle 14. Through the setting of the baffle 14, the large particles screened out by the first sieve plate body 7 can be blocked to prevent some of the screened large particles from directly falling on the discharge end of the second sieve plate body 8, causing direct discharge. The up and down swing of the baffle 14 can prevent the material from remaining on the baffle 14.

[0029] See also Figure 1 The vibration assembly includes two fixed plates 3, both of which are fixedly connected to both sides of the box body 2. Two telescopic rods 4 are fixedly connected to the bottom of the fixed plates 3. Both of the telescopic rods 4 are fixedly connected to the device base 1. A return spring 5 is sleeved on the outer side of the telescopic rod 4. The upper and lower ends of the return spring 5 are fixedly connected to the fixed plates 3 and the device base 1 respectively. A vibration motor 6 is installed at the bottom of the fixed plates 3.

[0030] Specifically, two vibration motors 6 are started. There is no specific limitation on the model of the vibration motor 6, which shall be based on the adapted equipment. When the two vibration motors 6 are in a vibrating state, a plurality of return springs 5 ​​work elastically to realize the vibration of the box body 2, thereby improving the discharge effect of the first screen plate body 7 and the second screen plate body 8.

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A multi-stage sand screening device for construction engineering, comprising a device base (1), characterized in that: A box body (2) is provided on the top of the device base (1), a vibration assembly is provided between the box body (2) and the device base (1), a discharge hopper (10) is installed at the bottom of the box body (2), a first sieve plate body (7) and a second sieve plate body (8) are provided inside the box body (2), a placement groove (11) is provided on one side of the box body (2), a gear (15) is provided on the front side of the box body (2), a rotating rod (13) is fixedly connected to the rear side of the gear (15), one end of the rotating rod (13) passes through the box body (2) and is rotatably connected to the box body (2), the rotating rod (13) is arranged inside the placement groove (11), and the outer side of the rotating rod (13) is fixedly connected to A round rod (12), the round rod (12) is arranged inside the placement groove (11) and contacts the box body (2), a baffle (14) is fixedly connected to the outside of the round rod (12), the baffle (14) is arranged between the first sieve plate body (7) and the second sieve plate body (8), the gear (15) is meshingly connected to the outside of a rack (16), a slider (17) is fixedly connected to the top of the rack (16), an L-shaped slide rod (18) is slidably connected to the inside of the slider (17), the L-shaped slide rod (18) is fixedly connected to the front side of the box body (2), one end of the rack (16) is fixedly connected to a connecting rod (19), and one end of the connecting rod (19) is provided with a driving component.

2. A multi-stage sand screening device for construction engineering according to claim 1, characterized in that: The vibration assembly comprises two fixed plates (3), the two fixed plates (3) are fixedly connected to two sides of the box body (2), the bottom of the fixed plates (3) are fixedly connected to two telescopic rods (4), and the two telescopic rods (4) are fixedly connected to the device base (1).

3. A multi-stage sand screening device for construction engineering according to claim 2, characterized in that: A return spring (5) is sleeved on the outside of the telescopic rod (4), and the upper and lower ends of the return spring (5) are respectively fixedly connected to the fixed plate (3) and the device base (1), and a vibration motor (6) is installed at the bottom of the fixed plate (3).

4. A multi-stage sand screening device for construction engineering according to claim 1, characterized in that: The box body (2) is provided with elongated grooves (9) on both sides, and the two elongated grooves (9) are communicated with the interior of the box body (2). The first sieve plate body (7) is fixedly connected to one side of the interior of the box body (2), and one end of the first sieve plate body (7) passes through one of the elongated grooves (9) and is fixedly connected to the box body (2).

5. A multi-stage sand screening device for construction engineering according to claim 4, characterized in that: The second sieve plate body (8) is fixedly connected to the other side of the interior of the box body (2); one end of the second sieve plate body (8) passes through another elongated slot (9) and is fixedly connected to the box body (2).

6. A multi-stage sand screening device for construction engineering according to claim 1, characterized in that: The driving assembly comprises a rotating disk (21), wherein the rotating disk (21) is arranged at one end of a connecting rod (19), a swing rod (20) is arranged between the rotating disk (21) and the connecting rod (19), a mounting groove (23) is opened at one end of the connecting rod (19), one end of the swing rod (20) is arranged inside the mounting groove (23) and is rotatably connected to the connecting rod (19), and a connecting column (22) is fixedly connected to the front side of the rotating disk (21), and one end of the connecting column (22) passes through the swing rod (20) and is rotatably connected to the swing rod (20).

7. A multi-stage sand screening device for construction engineering according to claim 6, characterized in that: A mounting seat is fixedly connected to the front side of the device base (1), a driving motor is fixedly connected to the top of the mounting seat, and an output end of the driving motor is fixedly connected to the rotating disk (21).

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