Building sand screening equipment convenient to clean

Abstract

The utility model relates to the technical field of building construction, and discloses building sand screening equipment convenient to clean, which comprises a screening hopper and a base, a screening net is fixedly mounted on the inner wall of the screening hopper, a vibration motor is fixedly mounted at the top of the screening hopper, and a positioning pin is fixedly mounted at the bottom of the base. According to the building sand screening equipment convenient to clean, a servo motor drives a reciprocating lead screw to rotate, meanwhile, a transmission belt, a transmission rod, a convex strip, a groove, a driving bevel gear and a driven bevel gear are matched, a rotating rod can be driven to rotate synchronously, and a steel ball can repeatedly knock a screen through rotation of the rotating rod and a reed, so that the screen vibrates, and the screen is cleaned conveniently. According to the vibrating screen, sand clamped in meshes can be vibrated out, the sand is prevented from blocking the screen, meanwhile, a reciprocating lead screw, a sliding block, a rotating rod and a reed are matched, steel balls can evenly knock the screen, therefore, the meshes of the screen can be fully cleaned, and the cleaning effect on the screen is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a sand screening device for buildings that is convenient for cleaning. Background Technique

[0002] Building construction refers to the production activities in the implementation stage of project construction, which is the construction process of various buildings. It can also be said to be the process of turning the various lines on the design drawings into physical objects at the designated location.

[0003] The cement concrete used in building construction is made by mixing sand and cement with a certain proportion of water added. Before use, the sand also needs to be screened by a sand screening machine to screen out the internal impurities and some large-grained stones in the sand.

[0004] The sand screening machine mainly screens the sand by shaking the screen mesh. However, during the use process, it is inevitable that some sand will get stuck inside the mesh holes of the screen. Therefore, after use, it is necessary to manually knock the screen to knock out the sand inside the mesh holes to avoid screen blockage. However, manual knocking is not only very troublesome but also difficult to master the strength. If knocked lightly, the cleaning will not be thorough, and if knocked heavily, the screen may be damaged. Content of the Utility Model

[0005] The purpose of the utility model is to provide a sand screening device for buildings that is convenient for cleaning, so as to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A sand screening device for buildings that is convenient for cleaning, including a screening hopper and a base. A screen mesh is fixedly installed on the inner wall of the screening hopper. A vibration motor is fixedly installed on the top of the screening hopper. A positioning pin is fixedly installed at the bottom of the base. A pin shaft is fixedly installed on the outer wall of the screening hopper. A spring is sleeved on the outer wall of the positioning pin. One end of the spring is fixedly installed on the top of the base, and the other end of the spring is fixedly installed on the outer wall of the screening hopper. A guide plate is fixedly installed on the side wall of the screen mesh. A cleaning mechanism for cleaning the screen mesh is arranged inside the screening hopper. By setting the cleaning mechanism, the sand stuck in the mesh holes of the screen mesh can be cleaned to avoid screen blockage. The cleaning mechanism includes:

[0007] A servo motor, which is fixedly installed on the outer wall of the screening hopper. The output end of the servo motor is fixedly installed with a reciprocating lead screw. A slider is slidably connected to the inner wall of the screening hopper. A driving bevel gear is rotatably connected to the inner wall of the slider. A groove is formed on the driving bevel gear. The inner wall of the slider is threadedly connected to the outer wall of the reciprocating lead screw. By setting the reciprocating lead screw in cooperation with the slider, the rotating rod can be driven to reciprocate inside the screening hopper. By setting the driving bevel gear in cooperation with the driven bevel gear, the rotating rod and the transmission rod can be rotated synchronously;

[0008] A rotating rod, the rotating rod is rotatably connected to the inner wall of the slider, and the rotating rod passes through the slider, a spring is fixedly installed on the outer wall of the rotating rod, a steel ball is fixedly installed on one end of the spring away from the rotating rod, and a driven bevel gear is fixedly installed on the side wall of the rotating rod, and the driven bevel gear is meshed with the driving bevel gear;

[0009] A transmission rod is rotatably connected to the inner wall of the screen bucket, a convex strip is fixedly installed on the outer wall of the transmission rod, the outer wall of the convex strip fits the inner wall of the groove, the transmission rod and the reciprocating screw are connected through a transmission belt, and the driving bevel gear can be driven to rotate by arranging the transmission rod to cooperate with the convex strip and the groove.

[0010] Preferably, the slider is provided with an auxiliary mechanism for improving the cleaning effect, by which the sand inside the screen bucket can be pushed out, the auxiliary mechanism includes an L-rod, and the L-rod is fixedly mounted on the bottom of the slider, by which the scraper and the slider can move synchronously.

[0011] Preferably, a scraper is fixedly mounted on one end of the L-rod away from the sliding block, and the sand can be pushed downward by setting the scraper so that the sand can slide out of the screen bucket.

[0012] Preferably, the bottom of the scraper is attached to the inner wall of the sieve bucket.

[0013] Preferably, the scraper is located at the bottom of the screen.

[0014] Preferably, the outer wall of the steel ball fits the bottom of the screen.

[0015] Compared with the prior art, the utility model provides a construction sand screening device that is easy to clean and has the following beneficial effects:

[0016] 1. This easy-to-clean construction sand screening equipment, the servo motor drives the reciprocating screw to rotate, and at the same time, with the transmission belt, transmission rod, convex strips, grooves, driving bevel gears, and driven bevel gears, it can drive the rotating rod to rotate synchronously, and the rotation of the rotating rod in conjunction with the reed can make the steel balls repeatedly knock on the screen to make the screen vibrate, which can vibrate out the sand stuck in the mesh and prevent the sand from clogging the screen. At the same time, with the reciprocating screw, slider, rotating rod, and reed, the steel balls can knock on the screen evenly, so that the mesh of the screen can be fully cleaned, thereby improving the cleaning effect of the screen.

[0017] 2. This easy-to-clean construction sand screening equipment, the slider moves and the L rod can drive the scraper to move synchronously along the inner wall of the screen bucket. When the sand stuck inside the mesh of the screen is vibrated off by the steel balls, the sand can be pushed downward by the movement of the scraper, so that the sand can slide out of the screen bucket, thereby cleaning the screen bucket, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 is a schematic top view structure diagram of the present utility model;

[0020] Figure 3 is a schematic side view sectional structure diagram of the present utility model;

[0021] Figure 4 is a schematic front view sectional structure diagram of the present utility model;

[0022] Figure 5 is a schematic diagram of the overall structure of the slider of the present utility model;

[0023] Figure 6 of the present utility model Figure 1 is an enlarged structure diagram at position A;

[0024] Figure 7 of the present utility model Figure 1 is an enlarged structure diagram at position B;

[0025] Figure 8 of the present utility model Figure 4 is an enlarged structure diagram at position C;

[0026] Figure 9 of the present utility model Figure 5 is an enlarged structure diagram at position D.

[0027] In the figure: 1, sieve hopper; 11, pin shaft; 2, base; 21, positioning pin; 3, spring; 4, sieve mesh; 5, vibration motor; 6, feeding plate; 7, cleaning mechanism; 71, servo motor; 72, rotating rod; 73, transmission rod; 74, reciprocating lead screw; 75, slider; 76, reed; 77, steel ball; 78, driven bevel gear; 79, driving bevel gear; 710, groove; 711, rib; 712, transmission belt; 8, auxiliary mechanism; 81, L-shaped rod; 82, scraper. Detailed implementation manners

[0028] Such as Figures 1-9As shown in the figure, the utility model provides a technical solution: a sand screening device for construction that is convenient for cleaning, including a screening hopper 1 and a base 2. A screen mesh 4 is fixedly installed on the inner wall of the screening hopper 1. A vibration motor 5 is fixedly installed on the top of the screening hopper 1. Starting the vibration motor 5 can drive the whole screening hopper 1 to shake. At this time, the sand can be screened by using the screen mesh 4. A positioning pin 21 is fixedly installed at the bottom of the base 2. A pin shaft 11 is fixedly installed on the outer wall of the screening hopper 1. A spring 3 is sleeved on the outer wall of the positioning pin 21. One end of the spring 3 is fixedly installed on the top of the base 2, and the other end of the spring 3 is fixedly installed on the outer wall of the screening hopper 1. Through the cooperation of the spring 3 with the pin shaft 11 and the positioning pin 21, the screening hopper 1 and the base 2 are softly connected. A guide plate 6 is fixedly installed on the side wall of the screen mesh 4. The fine sand is filtered into the interior of the screening hopper 1 through the screen mesh 4, the large-particle stones and impurities are screened out, and are discharged through the guide plate 6. A cleaning mechanism 7 for cleaning the screen mesh 4 is arranged inside the screening hopper 1. By setting the cleaning mechanism 7, the sand stuck in the mesh holes of the screen mesh 4 can be cleaned to prevent the screen mesh 4 from being blocked.

[0029] The cleaning mechanism 7 includes a servo motor 71, a rotating rod 72, a transmission rod 73, a reciprocating screw rod 74, a slider 75, a reed 76, a steel ball 77, a driven bevel gear 78, a driving bevel gear 79, a groove 710, a convex strip 711, and a transmission belt 712; the servo motor 71 is fixedly mounted on the outer wall of the screen bucket 1, the reciprocating screw rod 74 is fixedly mounted on the output end of the servo motor 71, the inner wall of the screen bucket 1 is slidably connected with the slider 75, the inner wall of the slider 75 is rotatably connected with the driving bevel gear 79, and the driving bevel gear 79 is provided with a groove 710, the inner wall of the slider 75 is threadedly connected to the outer wall of the reciprocating screw rod 74, the servo motor 71 is started, and the reciprocating screw rod 74 is driven to rotate by the servo motor 71, and the slider 75 can be driven to slide on the inner wall of the screen bucket 1 by the rotation of the reciprocating screw rod 74, and the movement of the slider 75 cooperates with the rotating rod 72 and the spring 76 to make the steel ball 77 evenly knock the screen 4, the rotating rod 72 is rotatably connected to the inner wall of the slider 75, and the rotating rod 72 passes through the slider 75, and the outer wall of the rotating rod 72 is fixedly installed with a spring 76, and the spring 76 is away from the rotating rod 76. A steel ball 77 is fixedly installed at one end of the rod 72, and the outer wall of the steel ball 77 fits with the bottom of the screen 4. When the rotating rod 72 rotates, the spring 76 can make the steel ball 77 repeatedly hit the screen 4, so that the screen 4 vibrates, and the sand stuck in the mesh can be vibrated out to prevent the sand from clogging the screen 4. A driven bevel gear 78 is fixedly installed on the side wall of the rotating rod 72, and the driven bevel gear 78 is meshed with the driving bevel gear 79. When the driving bevel gear 79 rotates, the driven bevel gear 78 meshed with it can drive the rotating rod 72 to rotate synchronously, and the transmission The rod 73 is rotatably connected to the inner wall of the screen bucket 1, and a convex strip 711 is fixedly installed on the outer wall of the transmission rod 73. The outer wall of the convex strip 711 fits the inner wall of the groove 710. When the transmission rod 73 rotates, the convex strip 711 and the groove 710 can drive the driving bevel gear 79 to rotate synchronously on the inner wall of the slider 75. The transmission rod 73 and the reciprocating screw rod 74 are connected by a transmission belt 712. The reciprocating screw rod 74 is driven to rotate by the servo motor 71. At the same time, the transmission belt 712 can drive the transmission rod 73 to rotate synchronously.

[0030] The slider 75 is provided with an auxiliary mechanism 8 for improving the cleaning effect. The auxiliary mechanism 8 can be used to push out the sand inside the screen bucket 1. The auxiliary mechanism 8 includes an L rod 81 and a scraper 82. The L rod 81 is fixedly installed at the bottom of the slider 75. The end of the L rod 81 away from the slider 75 is fixedly installed with a scraper 82. The bottom of the scraper 82 is attached to the inner wall of the screen bucket 1. When the slider 75 moves, the scraper 82 can be driven to move synchronously with the inner wall of the screen bucket 1 in cooperation with the L rod 81. The scraper 82 is located at the bottom of the screen 4. When the sand stuck inside the mesh of the screen 4 is shaken off by the steel ball 77, the sand can be pushed downward by the movement of the scraper 82, so that the sand can slide out of the screen bucket 1.

[0031] Working principle: Through the cooperation of the spring 3, the pin shaft 11 and the positioning pin 21, the sieve hopper 1 and the base 2 are softly connected. Starting the vibration motor 5 can drive the whole sieve hopper 1 to shake. At this time, the sand can be screened by using the sieve mesh 4. The fine sand is filtered into the interior of the sieve hopper 1, and the large-particle stones and impurities are screened out and discharged through the material guide plate 6. When it is necessary to clean the sieve mesh 4, the vibration motor 5 is turned off, and the servo motor 71 is started. The servo motor 71 drives the reciprocating lead screw 74 to rotate. At the same time, the transmission belt 712 is used to drive the transmission rod 73 to rotate synchronously. While the transmission rod 73 rotates, the driving bevel gear 79 can be driven to rotate synchronously on the inner wall of the slider 75 by the cooperation of the convex strip 711 and the groove 710. While the driving bevel gear 79 rotates, the driven bevel gear 78 meshing with it can drive the rotating rod 72 to rotate synchronously. While the rotating rod 72 rotates, the reed piece 76 is used to make the steel ball 77 repeatedly strike the sieve mesh 4, causing the sieve mesh 4 to vibrate, and the sand stuck in the mesh holes can be shaken out, avoiding the blockage of the sieve mesh 4 by the sand. At this time, the rotation of the reciprocating lead screw 74 can drive the slider 75 to slide on the inner wall of the sieve hopper 1. While the slider 75 moves, it will drive the rotating rod 72 to move synchronously. Thus, the rotating rod 72 can drive the reed piece 76 and the steel ball 77 to move inside the sieve hopper 1 while rotating, and further, the steel ball 77 can strike the sieve mesh 4 evenly, so as to fully clean the mesh holes of the sieve mesh 4 and improve the cleaning effect of the sieve mesh 4.

[0032] While the slider 75 moves, it cooperates with the L-shaped rod 81 to drive the scraper 82 to move synchronously while adhering to the inner wall of the sieve hopper 1. When the sand stuck in the mesh holes of the sieve mesh 4 is shaken off by the steel ball 77, the sand can be pushed downward by the movement of the scraper 82, so that the sand can slide out of the sieve hopper 1, thereby cleaning the sieve hopper 1 and making it more convenient to use.

[0033] The above text generally describes the present invention in detail. However, based on the present invention, some modifications or improvements can be made, which are obvious to those of ordinary skill in the art. Therefore, the modifications or improvements made without departing from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A construction sand screening device that is easy to clean, comprising a screening bucket (1) and a base (2), a screen (4) being fixedly mounted on the inner wall of the screening bucket (1), and a vibration motor (5) being fixedly mounted on the top of the screening bucket (1), characterized in that: A positioning pin (21) is fixedly mounted on the bottom of the base (2), a pin shaft (11) is fixedly mounted on the outer wall of the sieve bucket (1), a spring (3) is sleeved on the outer wall of the positioning pin (21), one end of the spring (3) is fixedly mounted on the top of the base (2), and the other end of the spring (3) is fixedly mounted on the outer wall of the sieve bucket (1), a material guide plate (6) is fixedly mounted on the side wall of the sieve (4), and a cleaning mechanism (7) for cleaning the sieve (4) is arranged inside the sieve bucket (1), and the cleaning mechanism (7) comprises: A servo motor (71), the servo motor (71) is fixedly mounted on the outer wall of the sieve bucket (1), a reciprocating screw rod (74) is fixedly mounted on the output end of the servo motor (71), a slider (75) is slidably connected to the inner wall of the sieve bucket (1), the inner wall of the slider (75) is rotatably connected to a driving bevel gear (79), a groove (710) is provided on the driving bevel gear (79), and the inner wall of the slider (75) is threadedly connected to the outer wall of the reciprocating screw rod (74); A rotating rod (72), the rotating rod (72) is rotatably connected to the inner wall of the slider (75), and the rotating rod (72) penetrates the slider (75), a spring (76) is fixedly installed on the outer wall of the rotating rod (72), a steel ball (77) is fixedly installed on one end of the spring (76) away from the rotating rod (72), and a driven bevel gear (78) is fixedly installed on the side wall of the rotating rod (72), and the driven bevel gear (78) is meshed with the driving bevel gear (79); A transmission rod (73) is rotatably connected to the inner wall of the sieve bucket (1); a convex strip (711) is fixedly mounted on the outer wall of the transmission rod (73); the outer wall of the convex strip (711) is fitted to the inner wall of the groove (710); and the transmission rod (73) is connected to the reciprocating screw rod (74) by a transmission belt (712).

2. The construction sand screening equipment that is easy to clean according to claim 1 is characterized by: The slide block (75) is provided with an auxiliary mechanism (8) for improving the cleaning effect. The auxiliary mechanism (8) comprises an L-rod (81) which is fixedly mounted on the bottom of the slide block (75).

3. The construction sand screening equipment that is easy to clean according to claim 2 is characterized by: A scraper (82) is fixedly mounted on one end of the L-rod (81) away from the slider (75).

4. The construction sand screening equipment that is easy to clean according to claim 3 is characterized by: The bottom of the scraper (82) is attached to the inner wall of the sieve bucket (1).

5. The construction sand screening equipment that is easy to clean according to claim 3 is characterized by: The scraper (82) is located at the bottom of the screen (4).

6. The construction sand screening equipment that is easy to clean according to claim 1 is characterized by: The outer wall of the steel ball (77) is in contact with the bottom of the screen (4).

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