Gravel screening device for engineering construction

Abstract

The utility model provides a gravel screening device for engineering construction, and relates to the technical field of engineering construction, the gravel screening device comprises a bottom plate and a transmission belt, the top of the bottom plate is fixedly connected with a fixing frame, and the outer surface of the fixing frame is fixedly connected with a first motor. In the use process, through matched use of the fixing frame, the first motor, the first belt wheel, the transmission belt, the second belt wheel, the threaded rod, the storage frame, the screening basket, the sliding rod, the threaded rod, the threaded block, the conveying assembly and the lifting assembly, due to the fact that the containing space in the hopper is large, more gravel can be contained at a time, and continuous manual feeding is avoided; and the hopper is slightly higher than the bottom plate, so that the manual feeding height is reduced, the situation that a worker needs to continuously and greatly wave two arms and shovel and feed gravel is avoided, and the problem that in the background technology, in order to maintain the screening effect, the worker needs to continuously and greatly wave the two arms and work for a long time, and the working intensity of the worker is large is solved.

Description

Technical Field

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

[0002] Sand and gravel are often used in building decoration. Sand and gravel refers to a loose mixture of sand and crushed stone. In geology, mineral or rock particles with a particle size of 0.074 to 2 mm are called sand, and particles with a particle size greater than 2 mm are called gravel or angular gravel (the difference between the two is the degree of roundness, see the entry conglomerate, sandstone for details). If the crushed stone in the sand and gravel is mostly gravel, it is called sand and gravel. In daily life, some people also call sandstone sandstone.

[0003] In the prior art, during the construction process, sand and gravel need to be screened to separate sand and gravel of different sizes to prevent the mixing of larger gravel and affect the uniformity of sand and gravel. Usually, a fixed inclined screen is used, and the sand and gravel are manually shoveled and thrown above the screen. The sand and gravel fall along the inclined fixed screen for screening. However, during the screening process, in order to maintain the screening effect, the throwing point of the sand and gravel is preferably located at the top of the screen to increase the contact area between the sand and gravel and the screen when it falls. In this way, workers need to continuously swing their arms in a large range. After working for a long time, the workers' work intensity is relatively high. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that in order to maintain the screening effect during the screening process, workers need to continuously swing their arms in a large range, which results in high work intensity after working for a long time, and proposes a sand and gravel screening device for engineering construction.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a sand and gravel screening device for engineering construction, comprising: a base plate and a transmission belt, a fixing frame is fixedly connected to the top of the base plate, a first motor is fixedly connected to the outer surface of the fixing frame, a first pulley is fixedly connected to the output end of the first motor, a threaded rod is rotatably connected between the inner surface walls of the fixing frame, a threaded block is threadedly rotatably connected to the outer surface of the threaded rod near the middle position, a storage frame is fixedly connected to the outer surface of the threaded block, a screen basket is arranged on the inner surface of the storage frame, a second pulley is fixedly connected to the outer surface of the threaded rod near the rear end face, and the second pulley is connected to the first pulley through a transmission belt transmission; a conveying assembly, the conveying assembly is fixedly connected to the top of the base plate, and the conveying assembly includes a hopper; a lifting assembly, the lifting assembly is fixedly connected to the inner bottom of the hopper, and the lifting assembly includes a mounting frame.

[0006] Preferably, the hopper is fixedly connected to a side position of the top of the base plate close to the fixed frame, the front surface of the hopper is fixedly connected to a second motor, the output end of the second motor rotates through the front surface of the hopper, the output end of the second motor is fixedly connected to a first rotating rod, and the outer surface of the first rotating rod is symmetrically provided with a first spiral sheet.

[0007] Preferably, the mounting frame is fixedly connected to the inner bottom center of the hopper, the top of the mounting frame is fixedly connected to a third motor, the output end of the third motor rotates through the top of the mounting frame, the output end of the third motor is fixedly connected to a second rotating rod, the outer surface of the second rotating rod is provided with a second spiral sheet, the outer surface of the mounting frame is fixedly connected to a material guide pipe, and the material guide pipe is connected to the mounting frame.

[0008] Preferably, the outer surface of the first rotating rod rotates away from the position of the second motor to penetrate the inner surface of the hopper, and the first rotating rod is rotatably connected to the hopper.

[0009] Preferably, the outer surface of the second rotating rod is rotatably connected to the inner surface wall of the mounting bracket at a position away from the third motor.

[0010] Preferably, the material guide pipe is arranged obliquely, and the lowest point of the material guide pipe is located at the upper center of the fixing frame.

[0011] Preferably, a slider is fixedly connected to the outer surface of the storage frame near the mounting frame, a slide bar is fixedly connected to the inner surface of the fixing frame near the top, and the outer surface of the slide bar is slidably connected to the inner surface of the slider.

[0012] Preferably, a plurality of through holes are symmetrically provided on the inner bottom of the storage frame, a plurality of limit rods are symmetrically fixedly connected to the inner top of the sieve basket, and the limit rods are matched with the through holes.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, when in use, through the coordinated use of the fixed frame, the first motor, the first pulley, the transmission belt, the second pulley, the threaded rod, the storage frame, the screen basket, the sliding rod, the screw, the threaded block, the conveying assembly and the lifting assembly, due to the large volume space inside the hopper, a large amount of sand and gravel can be stored at one time, avoiding the need for personnel to continuously feed, and the hopper is slightly higher than the bottom plate, which reduces the manual feeding height and avoids the need for workers to continuously and significantly swing their arms to shovel and feed the sand and gravel, thus solving the problem in the background technology that in order to maintain the screening effect, the workers need to continuously and significantly swing their arms, and the workers' work intensity is relatively high after working for a long time.

[0015] 2. In the utility model, when in use, a plurality of limit rods symmetrically fixedly connected at the bottom of the storage frame are inserted into corresponding through holes, which play a limiting role to prevent the screen basket from being easily separated from the storage frame during the process of the storage frame driving the screen basket to reciprocate. After the sand and gravel screening is completed, the handles symmetrically arranged on the top of the screen basket are held and pulled upward, and the plurality of limit rods are separated from the corresponding through holes, so that the screen basket can be quickly taken out, and the larger sand and gravel retained in the screen basket can be processed, thereby improving the use effect of the sand and gravel screening device used for engineering construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a sand and gravel screening device for engineering construction is proposed for the utility model;

[0017] Figure 2 The utility model provides a schematic diagram of the structure of a conveying component of a sand and gravel screening device for engineering construction;

[0018] Figure 3 The utility model provides a schematic diagram of the structure of a lifting component of a sand and gravel screening device for engineering construction;

[0019] Figure 4 The utility model provides a partial structural schematic diagram of a sand and gravel screening device for engineering construction;

[0020] Figure 5 The utility model provides a schematic diagram of a storage frame structure of a sand and gravel screening device used in engineering construction.

[0021] Legend: 1. Bottom plate; 2. Fixed frame; 3. First motor; 4. First pulley; 5. Drive belt; 6. Second pulley; 7. Threaded rod; 8. Conveying assembly; 801. Hopper; 802. Second motor; 803. First rotating rod; 804. First spiral sheet; 9. Lifting assembly; 901. Mounting frame; 902. Third motor; 903. Second rotating rod; 904. Second spiral sheet; 905. Material guide tube; 10. Storage frame; 11. Screen basket; 12. Sliding rod; 13. Sliding block; 14. Threaded block; 15. Limiting rod; 16. Through hole. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0024] Embodiment 1, as Figure 1-Figure 5 As shown, the utility model provides a sand and gravel screening device for engineering construction, including: a bottom plate 1 and a transmission belt 5, a fixing frame 2 is fixedly connected to the top of the bottom plate 1, a first motor 3 is fixedly connected to the outer surface of the fixing frame 2, a first pulley 4 is fixedly connected to the output end of the first motor 3, a threaded rod 7 is rotatably connected between the inner surface walls of the fixing frame 2, a threaded block 14 is threadedly rotatably connected to the outer surface of the threaded rod 7 near the middle position, a storage frame 10 is fixedly connected to the outer surface of the threaded block 14, a sieve basket 11 is arranged on the inner surface of the storage frame 10, and a first pulley 4 is fixedly connected to the outer surface of the threaded rod 7 near the rear end surface. The second pulley 6 is connected to the first pulley 4 through a transmission belt 5; a conveying assembly 8, the conveying assembly 8 is fixedly connected to the top of the base plate 1, and the conveying assembly 8 includes a hopper 801; a lifting assembly 9, the lifting assembly 9 is fixedly connected to the inner bottom of the hopper 801, and the lifting assembly 9 includes a mounting frame 901, and the hopper 801 is fixedly connected to the top of the base plate 1 near the side position of the fixed frame 2, and the front surface of the hopper 801 is fixedly connected to the second motor 802, and the output end of the second motor 802 rotates through the front surface of the hopper 801, and the output end of the second motor 802 is fixedly connected to the first motor The first rotating rod 803 is symmetrically provided with a first spiral piece 804 on the outer surface of the first rotating rod 803, the mounting frame 901 is fixedly connected to the inner bottom center of the hopper 801, the top of the mounting frame 901 is fixedly connected with a third motor 902, the output end of the third motor 902 rotates and passes through the top of the mounting frame 901, the output end of the third motor 902 is fixedly connected with a second rotating rod 903, the outer surface of the second rotating rod 903 is provided with a second spiral piece 904, the outer surface of the mounting frame 901 is fixedly connected with a material guide pipe 905, the material guide pipe 905 is connected with the mounting frame 901, and the first rotating rod 803 is fixedly connected with the first rotating rod 803. The outer surface rotates away from the position of the second motor 802 and penetrates the inner surface of the hopper 801. The first rotating rod 803 is rotatably connected to the hopper 801. The outer surface of the second rotating rod 903 is rotatably connected to the inner surface wall of the mounting frame 901 away from the position of the third motor 902. The material guide tube 905 is arranged at an angle, and the lowest point of the material guide tube 905 is located at the upper center of the fixed frame 2. The outer surface of the storage frame 10 is fixedly connected to a slider 13 on one side close to the mounting frame 901, and the inner surface of the fixed frame 2 is fixedly connected to a slide bar 12 near the top, and the outer surface of the slide bar 12 is slidably connected to the inner surface of the slider 13.

[0025] The effect achieved by the entire embodiment 1 is that, when screening sand and gravel during the construction process, the sand and gravel to be screened are first poured into the hopper 801, and the second motor 802 is started. The output end of the second motor 802 drives the first rotating rod 803 to rotate in the hopper 801, and the two first spiral pieces 804 symmetrically fixed on its surface will transport the accumulated sand and gravel in the hopper 801 to the center during the synchronous driving process, and the sand and gravel stacked on both sides will be respectively sent to the bottom grooves of the mounting frame 901, and the third motor 902 is started synchronously. When the output end of the third motor 902 drives the second rotating rod 903 to rotate in the mounting frame 901, the synchronously rotating second spiral pieces 904 will lift the sand and gravel pouring in from the bottom of the mounting frame 901 upward and flow into the inclined guide pipe 905. The outlet end of the guide pipe 905 is located above the fixed frame 2 near the center, which will allow the sand and gravel to fall directly into the screen basket 11, and the first motor 3 is started synchronously. The output end of the first motor 3 drives the first rotating rod 803 to rotate in the mounting frame 901. The first pulley 4 rotates synchronously, and under the transmission action of the transmission belt 5, the second pulley 6 drives the threaded rod 7 to rotate between the inner surface walls of the fixed frame 2, and the threaded block 14 will reciprocate on the outer surface of the threaded rod 7 with the rotation direction of the output end of the first motor 3, and the storage frame 10 will synchronously reciprocate on the slide bar 12 through the slider 13, so that the sand and gravel falling into the screen basket 11 will shake inside it, and the filter holes at the bottom of the composite screen basket 11 can fall directly, and the larger sand and gravel will be retained in the screen basket 11, which plays a screening role. The large-capacity hopper 801 has a large internal volume space and can hold a large amount of sand and gravel at one time, avoiding the need for personnel to continuously feed, and the height of the hopper 801 is slightly higher than the height of the bottom plate 1, which reduces the manual feeding height, avoiding the need for workers to continuously and significantly swing their arms to shovel and feed sand and gravel, and solves the problem in the background technology that in order to maintain the screening effect, workers need to continuously and significantly swing their arms, and the workers' work intensity is relatively high after working for a long time.

[0026] Embodiment 2, as Figure 1-Figure 5 As shown, a plurality of through holes 16 are symmetrically provided at the inner bottom of the storage frame 10 , and a plurality of limiting rods 15 are symmetrically fixedly connected to the inner top of the screen basket 11 , and the limiting rods 15 and the through holes 16 are matched with each other.

[0027] The effect achieved by the entire embodiment 2 is that, when in use, the multiple limit rods 15 symmetrically fixedly connected at the bottom of the storage frame 10 are inserted into the corresponding through holes 16, which play a limiting role to prevent the storage frame 10 from easily separating from the screen basket 11 during the process of driving the screen basket 11 to reciprocate. After the sand and gravel screening is completed, the handles symmetrically arranged on the top of the screen basket 11 are held and pulled upward, and the multiple limit rods 15 are separated from the corresponding through holes 16, so that the screen basket 11 can be quickly taken out, and the larger sand and gravel retained in the screen basket 11 can be processed, thereby improving the use effect of the sand and gravel screening device used for engineering construction.

[0028] Working principle: When screening sand and gravel during construction, first pour the sand and gravel to be screened into the hopper 801, start the second motor 802, and the output end of the second motor 802 drives the first rotating rod 803 to rotate in the hopper 801. The two first spiral pieces 804 symmetrically fixed on the surface will transport the accumulated sand and gravel in the hopper 801 to the center during the synchronous driving process, and the sand and gravel stacked on both sides will be respectively sent to the bottom grooves of the mounting frame 901, and the third motor 902 will be started synchronously. The output end of the third motor 902 drives the second rotating rod 903 to rotate in the mounting frame 901. When the screen 11 is started, the synchronously rotating second spiral sheet 904 will lift the sand and gravel flowing into the bottom of the mounting frame 901 upward and flow into the inclined guide pipe 905. The outlet end of the guide pipe 905 is located above the fixing frame 2 near the center, which will allow the sand and gravel to fall directly into the screen basket 11, and the first motor 3 is started synchronously. The output end of the first motor 3 drives the first pulley 4 to rotate synchronously. Under the transmission action of the transmission belt 5, the second pulley 6 drives the threaded rod 7 to rotate between the inner surface walls of the fixing frame 2. The threaded block 14 will reciprocate on the outer surface of the threaded rod 7 with the rotation direction of the output end of the first motor 3, and the storage frame 10 The slider 13 will slide synchronously on the slide bar 12, so that the sand and gravel falling into the screen basket 11 will shake inside it, and the filter holes at the bottom of the composite screen basket 11 can fall directly, and the larger sand and gravel will be retained in the screen basket 11, which plays a screening role. The large-capacity hopper 801 has a large internal volume space, which can hold a large amount of sand and gravel at one time, avoiding the need for continuous feeding by personnel, and the height of the hopper 801 is slightly higher than the height of the bottom plate 1, which reduces the manual feeding height and avoids the need for workers to continuously swing their arms to shovel and dig the sand and gravel to feed the material, solving the problem in the background technology that in order to maintain the screening effect, workers need to continue The workers continue to swing their arms vigorously and work for a long time, and the work intensity is relatively high. The multiple limit rods 15 symmetrically fixedly connected at the bottom of the storage frame 10 are inserted into the corresponding through holes 16, which play a limiting role to prevent the storage frame 10 from driving the screen basket 11 to reciprocate. The screen basket is easily separated from the storage frame 10. After the sand and gravel screening is completed, the handles symmetrically arranged on the top of the screen basket 11 are held and pulled upward, and the multiple limit rods 15 are separated from the corresponding through holes 16, so that the screen basket 11 can be quickly taken out, and the larger sand and gravel retained in the screen basket 11 can be processed, thereby improving the use effect of the sand and gravel screening device used for engineering construction.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A sand and gravel screening device for engineering construction, characterized in that: include: A bottom plate (1) and a transmission belt (5), wherein the top of the bottom plate (1) is fixedly connected to a fixing frame (2), the outer surface of the fixing frame (2) is fixedly connected to a first motor (3), the output end of the first motor (3) is fixedly connected to a first pulley (4), a threaded rod (7) is rotatably connected between the inner surface walls of the fixing frame (2), the outer surface of the threaded rod (7) is threadedly rotatably connected to a threaded block (14) near the middle position, the outer surface of the threaded block (14) is fixedly connected to a storage frame (10), a sieve basket (11) is arranged on the inner surface of the storage frame (10), the outer surface of the threaded rod (7) is fixedly connected to a second pulley (6) near the rear end surface, and the second pulley (6) is connected to the first pulley (4) by a transmission belt (5); A conveying assembly (8), the conveying assembly (8) is fixedly connected to the top of the bottom plate (1), and the conveying assembly (8) comprises a hopper (801); A lifting assembly (9), wherein the lifting assembly (9) is fixedly connected to the inner bottom of the hopper (801), and the lifting assembly (9) comprises a mounting frame (901).

2. The sand and gravel screening device for engineering construction according to claim 1 is characterized in that: The hopper (801) is fixedly connected to a side position of the top of the bottom plate (1) close to the fixed frame (2); the front surface of the hopper (801) is fixedly connected to a second motor (802); the output end of the second motor (802) rotates and passes through the front surface of the hopper (801); the output end of the second motor (802) is fixedly connected to a first rotating rod (803); and the outer surface of the first rotating rod (803) is symmetrically provided with a first spiral sheet (804).

3. The sand and gravel screening device for engineering construction according to claim 1 is characterized in that: The mounting frame (901) is fixedly connected to the center of the inner bottom of the hopper (801); the top of the mounting frame (901) is fixedly connected to a third motor (902); the output end of the third motor (902) rotates and passes through the top of the mounting frame (901); the output end of the third motor (902) is fixedly connected to a second rotating rod (903); the outer surface of the second rotating rod (903) is provided with a second spiral sheet (904); the outer surface of the mounting frame (901) is fixedly connected to a material guide pipe (905); the material guide pipe (905) is connected to the mounting frame (901).

4. The sand and gravel screening device for engineering construction according to claim 2 is characterized in that: The outer surface of the first rotating rod (803) is rotated away from the position of the second motor (802) to penetrate the inner surface of the hopper (801), and the first rotating rod (803) is rotatably connected to the hopper (801).

5. The sand and gravel screening device for engineering construction according to claim 3 is characterized in that: The outer surface of the second rotating rod (903) is rotatably connected to the inner surface wall of the mounting frame (901) at a position away from the third motor (902).

6. The sand and gravel screening device for engineering construction according to claim 3 is characterized in that: The material guide pipe (905) is arranged in an inclined manner, and the lowest point of the material guide pipe (905) is located at the upper center of the fixing frame (2).

7. The sand and gravel screening device for engineering construction according to claim 6 is characterized in that: A slider (13) is fixedly connected to the outer surface of the storage frame (10) at one side close to the mounting frame (901), a slide bar (12) is fixedly connected to the inner surface of the fixing frame (2) at a position close to the top, and the outer surface of the slide bar (12) is slidably connected to the inner surface of the slider (13).

8. The sand and gravel screening device for engineering construction according to claim 7 is characterized in that: The inner bottom of the storage frame (10) is symmetrically provided with a plurality of through holes (16); the inner top of the sieve basket (11) is symmetrically fixedly connected with a plurality of limiting rods (15); the limiting rods (15) and the through holes (16) are matched with each other.

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