Sand screening device for construction

Abstract

The utility model discloses a building construction is with screening sand equipment relates to screening sand equipment technical field, and includes: frame, the both sides of frame all are established with through slot, and frame top is open -mouthed, the screen frame is arranged in the opening of frame top, and the both sides of screen frame are fixedly installed with two clamping blocks respectively, the surface of frame one side is fixedly installed with two fixed plates in symmetry, is provided with the belt conveyor in the frame, and the both ends of belt conveyor are installed with the both -side inner wall of frame through two fixed plates respectively, one side of belt conveyor is equipped with the inclined plate, and the inclined plate one end extends the outside of frame, and the inclined plate bottom is fixedly installed with frame inner bottom, the utility model does not need the mode of fastener or welding installation screen of traditional use, alleviates personnel operation burden, and the maintenance cleaning of screen frame and the replacement of different aperture screen frame increase the convenience, promote the practicality and the operation quickness of equipment.

Description

Technical Field

[0001] This utility model belongs to the technical field of sand screening equipment, specifically relating to a sand screening device for building construction. Background Technology

[0002] In the construction industry, sand screening equipment is a commonly used material screening device. Its main function is to screen sand and gravel raw materials, separate sand and gravel particles of different sizes, and screen out fine sand and other materials that meet the construction requirements. This provides qualified sand and gravel materials for subsequent construction processes such as concrete mixing and foundation filling, so as to ensure the smooth progress of construction.

[0003] However, most existing sand screening equipment uses bolts or direct welding to install the screens. While this method provides a stable installation, it makes the installation and removal process extremely cumbersome when maintenance, cleaning, or replacement with screens of different aperture sizes is required to accommodate different sizes of sand and gravel. This necessitates the use of specialized tools to disassemble the fasteners, consuming significant time and manpower. Furthermore, welding makes screen disassembly and replacement extremely difficult, greatly reducing the equipment's flexibility and impacting screening efficiency. Therefore, this applicant proposes a sand screening device for construction to address these problems. Utility Model Content

[0004] The purpose of this utility model is to provide a sand screening device for construction, so as to solve the problem that the existing sand screening equipment in the background art requires maintenance and cleaning of the screen or replacement of screens with different apertures to adapt to the screening needs of sand and gravel of different sizes, and the loading and unloading process is extremely cumbersome, which affects the efficiency of sand screening operation.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A sand screening device for construction includes: a frame, with through slots on both sides of the frame and an open top, a screen frame at the opening on the top of the frame, and two locking blocks fixedly installed on both sides of the screen frame.

[0007] Two fixing plates are symmetrically fixedly installed on one side surface of the frame. A belt conveyor is installed inside the frame. The two ends of the belt conveyor are respectively installed to the inner walls of the two sides of the frame through the two fixing plates. An inclined plate is provided on one side of the belt conveyor. One end of the inclined plate extends out of the frame and the bottom of the inclined plate is fixedly installed to the bottom of the frame.

[0008] A vibration motor is fixedly installed at the bottom center of the frame. The top two sides of the frame are provided with slots that match the card blocks. A set of positioning mechanisms is provided on the outer walls of both sides of the frame, and each set of positioning mechanisms consists of two.

[0009] The frame has two symmetrically arranged bases at its bottom, and the bases are U-shaped. The outer walls of both sides of the frame have four sets of support plates symmetrically arranged, and each set of support plates consists of two plates. The bottom ends of the support plates are connected to the top of the bases through multiple mounting plates and springs.

[0010] Furthermore, the outer walls on both sides of the frame are provided with insertion holes that communicate with adjacent card slots, and one side of each of the multiple card blocks is provided with a slot that matches the insertion hole.

[0011] Furthermore, the positioning mechanism includes a mounting shell disposed on one side of the outer wall of the frame. One side of the mounting shell is open, and the surface of the mounting shell located at the opening is fixedly installed on the adjacent outer wall of the frame. A limiting plate is provided inside the mounting shell, and a pull rod is sleeved inside the limiting plate. One end of the pull rod passes through an insertion hole and is inserted into a slot. The other end of the pull rod passes through the side wall of the mounting shell and is fixedly installed with a pull block. A spring is sleeved on the outside of the pull rod, and the two ends of the spring are fixedly connected to one side of the limiting plate and the inner wall of one side of the mounting shell, respectively.

[0012] Furthermore, a limiting groove is formed on the outer wall of the mounting shell near the pull block, a circular groove is formed on the side of the pull block near the mounting shell, a limiting block adapted to the limiting groove is provided on one side of the mounting shell, and an insert rod adapted to the circular groove is fixedly installed on one side of the limiting block.

[0013] Furthermore, the top and bottom ends of two adjacent springs are respectively fixedly installed to the bottom and top of two adjacent mounting plates, the bottom ends of two adjacent support plates are fixedly installed to the top of adjacent mounting plates, and the top ends of the base are fixedly installed to the bottom of two adjacent mounting plates.

[0014] Compared with existing technologies, the beneficial effects of the sand screening equipment for construction provided by this utility model are:

[0015] (1) The positioning mechanism makes the installation, removal and replacement of the screen frame more convenient. During installation and removal, the personnel pull the pull block to disengage the pull rod from the slot of the locking block and release the positioning of the screen frame. During installation, the pull block is released and the spring returns elastically to push the limit plate and drive the pull rod to automatically return to its original position and insert the locking block. At the same time, the limit block and the locking rod can also temporarily fix the pull rod, eliminating the need for continuous pulling by the personnel. This frees up the personnel's hands to operate the installation and removal of the screen frame. There is no need to use fasteners or welding to install the screen, which reduces the burden on the personnel and increases the convenience of screen frame maintenance and cleaning and replacement of screen frames with different apertures, thereby improving the practicality and operation speed of the equipment.

[0016] (2) The durability and stability of the equipment are enhanced by the vibration motor and spring 2. The vibration motor drives the frame to vibrate, and the vibration is transmitted through the support plate and the mounting plate and buffered by the elasticity of spring 2. This allows the screen frame to vibrate effectively to screen sand and gravel, accelerate the separation of coarse and fine sand and gravel. At the same time, spring 2 can reduce the rigid collision between the frame and the base, reduce equipment wear, and extend the overall service life. The U-shaped base can provide stable support for the equipment, ensuring that the equipment is not easy to tip over or move during vibration operation, further improving the stability of sand screening operation. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0018] Figure 2 A schematic diagram of the second spring structure provided in an embodiment of this utility model;

[0019] Figure 3 This is a schematic diagram of the card block structure provided in an embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the frame provided in an embodiment of the present utility model;

[0021] Figure 5 This is a schematic diagram of the cross-sectional structure of the mounting shell provided in an embodiment of the present utility model;

[0022] Figure 6 A schematic diagram of the insertion rod structure provided in an embodiment of this utility model;

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Positioning mechanism; 101. Mounting shell; 102. Limiting plate; 103. Pull rod; 104. Spring 1; 105. Pull block; 106. Insert rod; 107. Limiting block; 2. Frame; 3. Screen frame; 4. Belt conveyor; 5. Fixing plate; 6. Base; 7. Mounting plate; 8. Spring 2; 9. Support plate; 10. Vibrating motor; 11. Inclined plate; 12. Locking block; 13. Locking groove. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] As attached Figure 1 To be continued Figure 6 As shown:

[0027] Example 1:

[0028] This utility model provides a sand screening device for construction, including a frame 2, through grooves on both sides of the frame 2, and an open top of the frame 2. A screen frame 3 is provided at the opening on the top of the frame 2, and two locking blocks 12 are fixedly installed on both sides of the screen frame 3.

[0029] Two fixing plates 5 are symmetrically fixedly installed on one side surface of the frame 2. A belt conveyor 4 is installed inside the frame 2. The two ends of the belt conveyor 4 are respectively installed to the inner walls of the two sides of the frame 2 through the two fixing plates 5. An inclined plate 11 is provided on one side of the belt conveyor 4. One end of the inclined plate 11 extends out of the frame 2, and the bottom of the inclined plate 11 is fixedly installed to the bottom of the frame 2.

[0030] A vibration motor 10 is fixedly installed at the bottom center of the frame 2. The top two sides of the frame 2 are provided with slots 13 that are compatible with the card block 12. A set of positioning mechanisms 1 is provided on the outer walls of both sides of the frame 2, and there are two positioning mechanisms 1 in each set.

[0031] Two bases 6 are symmetrically arranged below the frame 2, and the bases 6 are U-shaped. Four sets of support plates 9 are symmetrically arranged on the outer walls of both sides of the frame 2, and each set of support plates 9 consists of two plates. The bottom ends of the multiple support plates 9 are connected to the top of the base 6 through multiple mounting plates 7 and springs 8.

[0032] As can be seen from the above, the positioning mechanism 1, the locking block 12, and the locking groove 13 can stably lock and position the screen frame 3 at the opening at the top of the frame 2, preventing the screen frame 3 from shifting during the sand screening process. When the sand screening operation is carried out, the personnel pour the sand and gravel into the screen frame 3 on the frame 2, and then start the vibration motor 10. When the vibration motor 10 works, it drives the frame 2 to vibrate. Then the vibration force is transmitted to the multiple mounting plates 7 through the multiple support plates 9 on both sides of the frame 2. Then, through the elastic buffering effect of the spring 8, the frame 2 forms a reciprocating vibration in the vertical direction, and transmits the vibration force synchronously to the screen frame 3, so that the sand and gravel in the frame vibrates continuously to achieve screening. The fine sand that meets the screen mesh size falls through the screen into the frame 2, while the larger sand and gravel particles remain on the screen frame 3. Since the screen frame 3 is at an angle, the large sand and gravel will then roll down onto the inclined plate 11 in the frame 2 due to gravity and then roll out of the adjacent through groove and fall out of the frame 2. The fine sand that falls into the frame 2 will fall into the screen frame 3. The fine sand is transported to the other side of the frame 2 by starting the belt conveyor 4 and continuously operating it. The fine sand then slides out of the frame 2 for easy collection by the staff. After screening, the staff can release the positioning mechanism 1 from the limit of the locking block 12, and then remove the screen frame 3 to maintain and clean the remaining large particles of sand and gravel, or replace it with a screen frame 3 of other specifications and apertures to adapt to different sizes of sand and gravel. The frame 2 is connected to the base 6 through multiple support plates 9, mounting plates 7 and springs 8, so that springs 8 can not only transmit vibration, but also play a buffering role during vibration, reducing rigid collisions between the frame 2 and the base 6, reducing equipment wear, and extending the overall service life. The base 6 is U-shaped, providing stable support for the entire device, ensuring that the equipment is not easy to tip over or move during vibration operation, and improving operational stability. The belt conveyor 4 and the vibration motor 10 are connected to an external controller and power supply, which is existing technology and will not be described in detail here.

[0033] Example 2:

[0034] This embodiment is basically the same as the previous embodiment, except that the outer walls on both sides of the frame 2 are provided with insertion holes that communicate with the adjacent card slots 13, and one side of each of the multiple card blocks 12 is provided with a slot that matches the insertion hole.

[0035] The positioning mechanism 1 includes a mounting shell 101 disposed on the outer wall of one side of the frame 2. One side of the mounting shell 101 is open, and the surface of the mounting shell 101 at the opening is fixedly installed on the adjacent outer wall of the frame 2. A limiting plate 102 is provided inside the mounting shell 101. A pull rod 103 is sleeved inside the limiting plate 102. One end of the pull rod 103 passes through the insertion hole and is inserted into the slot. The other end of the pull rod 103 passes through the side wall of the mounting shell 101 and is fixedly installed with a pull block 105. A spring 104 is sleeved on the outside of the pull rod 103. The two ends of the spring 104 are fixedly connected to one side of the limiting plate 102 and the inner wall of one side of the mounting shell 101, respectively.

[0036] A limiting groove is provided on the outer wall of the mounting shell 101 near the pull block 105. A circular groove is provided on the side of the pull block 105 near the mounting shell 101. A limiting block 107 adapted to the limiting groove is provided on one side of the mounting shell 101. A plug rod 106 adapted to the circular groove is fixedly installed on one side of the limiting block 107.

[0037] The top and bottom ends of two adjacent springs 8 are fixedly installed to the bottom and top of two adjacent mounting plates 7, respectively. The bottom ends of two adjacent support plates 9 are fixedly installed to the top of adjacent mounting plates 7. The top ends of the base 6 are fixedly installed to the bottom of two adjacent mounting plates 7.

[0038] As can be seen from the above: when maintenance is required after screening or when screening other sand and gravel of different volumes is required, the operator can pull the lever 103 by holding the lever 105. At this time, the lever 103 will move the external limiting plate 102 and squeeze the spring 104. When one end of the lever 103 separates from the slot and releases the positioning of the locking block 12, the operator can separate the locking block 12 from the slot 13 and remove the screen frame 3 for maintenance or replacement. During installation, the operator aligns the multiple locking blocks 12 on both sides of the screen frame 3 with the multiple slots 13 on the frame 2 and inserts them. Then, the operator releases the lever 105 so that the spring 104 loses the squeezing force and elastically returns to push the limiting plate 102 to drive the lever 103 back to its original position. This allows one end of the lever 103 to re-insert into the slot to position the locking block 12, thereby firmly positioning the screen frame 3 on the frame 2. This is simple and convenient, and does not require the operator to use fasteners or welding to install the screen, reducing the operator's workload and improving the practicality of the sand screening equipment.

[0039] While the operator pulls the pull block 105, the operator can move the limiting block 107 in the limiting groove and move the insertion rod 106 to the horizontal position of the circular groove. Then the operator releases the pull block 105 to return it to its original position. The circular groove on one side of the pull block 105 then abuts against the end of the insertion rod 106, thus blocking the pull block 105 and preventing the pull rod 103 from returning to its original position and inserting into the slot. At this time, the operator can free up their hands to operate the installation and removal of the screen frame 3 without continuously pulling the pull block 105. By positioning all the pull rods 103, the operator only needs to disassemble the screen frame 3 and the locking block 12. During installation, there is also no need to pull. Simply insert the locking block 12 into the locking groove 13, then pull the pull block 105 to separate it from the insertion rod 106, move the insertion rod 106 back to its original position, and then release the pull block 105 to allow the pull rod 103 to be inserted back into the slot. This is simple and convenient, further improving the speed of the operator's operation of installing and removing the screen frame 3, thereby improving the practical effect of the equipment.

[0040] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A sand screening device for construction, comprising a frame (2), characterized in that, Both sides of the frame (2) are provided with through slots, and the top of the frame (2) is open. A screen frame (3) is provided at the top of the frame (2) at the opening. Two clips (12) are fixedly installed on both sides of the screen frame (3). Two fixing plates (5) are symmetrically fixedly installed on one side surface of the frame (2). A belt conveyor (4) is installed inside the frame (2). The two ends of the belt conveyor (4) are respectively installed to the inner walls of the two sides of the frame (2) through the two fixing plates (5). An inclined plate (11) is provided on one side of the belt conveyor (4). One end of the inclined plate (11) extends out of the frame (2), and the bottom of the inclined plate (11) is fixedly installed to the bottom of the frame (2). A vibration motor (10) is fixedly installed at the bottom center of the frame (2). The top two sides of the frame (2) are provided with slots (13) that are compatible with the card block (12). A set of positioning mechanisms (1) is provided on the outer walls of both sides of the frame (2), and each set of positioning mechanisms (1) consists of two. The frame (2) has two symmetrically arranged bases (6) below it, and the bases (6) are U-shaped. The outer walls of the two sides of the frame (2) are symmetrically arranged with four sets of support plates (9), and each set of support plates (9) consists of two plates. The bottom ends of the multiple support plates (9) are connected to the top of the base (6) through multiple mounting plates (7) and springs (8).

2. The sand screening equipment for construction as described in claim 1, characterized in that: Both sides of the outer wall of the frame (2) are provided with insertion holes that communicate with the adjacent card slots (13), and one side of each of the multiple card blocks (12) is provided with a slot that matches the insertion hole.

3. A sand screening device for construction according to claim 2, characterized in that: The positioning mechanism (1) includes a mounting shell (101) disposed on the outer wall of one side of the frame (2). One side of the mounting shell (101) is open, and the side surface of the mounting shell (101) located at the opening is fixedly installed with the adjacent outer wall of the frame (2). A limiting plate (102) is provided inside the mounting shell (101). A pull rod (103) is sleeved inside the limiting plate (102). One end of the pull rod (103) passes through the insertion hole and is inserted into the slot. The other end of the pull rod (103) passes through the side wall of the mounting shell (101) and is fixedly installed with a pull block (105). A spring (104) is sleeved on the outside of the pull rod (103). The two ends of the spring (104) are fixedly connected to one side of the limiting plate (102) and the inner wall of one side of the mounting shell (101), respectively.

4. A sand screening device for construction according to claim 3, characterized in that: A limiting groove is provided on the outer wall of the mounting shell (101) near the pull block (105). A circular groove is provided on the side of the pull block (105) near the mounting shell (101). A limiting block (107) adapted to the limiting groove is provided on one side of the mounting shell (101). A plug rod (106) adapted to the circular groove is fixedly installed on one side of the limiting block (107).

5. A sand screening device for construction according to claim 1, characterized in that: The top and bottom ends of two adjacent springs (8) are fixedly installed to the bottom and top of two adjacent mounting plates (7), respectively. The bottom ends of two adjacent support plates (9) are fixedly installed to the top of adjacent mounting plates (7), and the top ends of the base (6) are fixedly installed to the bottom of two adjacent mounting plates (7).

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