Sand screening equipment for constructional engineering construction

Abstract

The utility model relates to the technical field of sand screening equipment, in particular to building engineering construction sand screening equipment which comprises a supporting frame, the surface of the supporting frame is rotationally connected with a frame, the surface of the frame is fixedly connected with a screen, the surface of the screen is provided with a clamping block, the clamping block is connected with the frame in a clamped mode, and the surface of the clamping block is provided with a square groove. A first inserting block is slidably connected into the square groove, a first spring is fixedly connected to the surface of the first inserting block, a second inserting block is fixedly connected to the other end of the first spring, and a first pressing rod and a second pressing rod are fixedly connected to the surface of the first inserting block and the surface of the second inserting block correspondingly. According to the screen mesh fixing device, the screen mesh is fixed, so that the fixing mode of the screen mesh is more convenient, the convenience of dismounting and mounting of the screen mesh and the working efficiency of replacing the screen mesh with different screen holes are improved, and compared with a bolt fixing mode, the problem that bolts and the frame are rusted together and are not easy to dismount can be solved.

Description

Technical Field

[0001] This utility model relates to the field of sand screening technology, and in particular to a sand screening device for construction engineering. Background Technology

[0002] Sand is a commonly used building material on construction sites, but it often needs to be screened before use. Announcement No. CN209271852U discloses an adjustable inclined sand screening device for on-site construction, including a mesh frame, telescopic support rods, and cylindrical iron. A screen is fixed to the inner side of the screen frame by fixing bolts. A telescopic support rod is rotatably connected to the left and right sides of the inner wall of the protective shell via pins B. The protective shell provides several advantages: First, the telescopic support rods rotatably connected to the protective shell cooperate with the rectangular grooves on the screen frame to support the screen at different angles. Second, the screened sand particles fall into the protective shell, preventing damage to the ground environment. Third, the protective shell can be used to mix cement and sand particles, preventing damage to the ground. Fourth, after use, the screen frame can be rotated and placed inside the protective shell to prevent the screen from contacting convex objects and causing damage. However, in the above technology, the screen and the screen frame are fixed together by bolts. Although this method achieves the fixation of the screen, it is time-consuming and laborious to disassemble the screen and requires the assistance of tools. This makes the overall disassembly and installation inefficient. Moreover, after long-term use, the bolts are prone to rusting together with the screen frame, which will affect the convenience of bolt disassembly. Utility Model Content

[0003] The purpose of this utility model is to solve the technical problems mentioned in the background art.

[0004] This utility model adopts the following technical solution: a sand screening device for construction engineering, including a support frame, a frame rotatably connected to the surface of the support frame, a screen fixedly connected to the surface of the frame, a locking block provided on the surface of the screen, the locking block engaging with the frame, a square groove opened on the surface of the locking block, a first insert block slidably connected inside the square groove, a first spring fixedly connected to the surface of the first insert block, a second insert block fixedly connected to the other end of the first spring, a first pressure rod and a second pressure rod fixedly connected to the surfaces of the first insert block and the second insert block respectively, a support rod rotatably connected to the surface of the frame, an adjusting rod fixedly connected to the inner side of the support frame, and the bottom end of the support rod fixedly connected to the adjusting rod.

[0005] Preferably, the surface of the screen has a slot, and the surface of the frame has a groove, with the groove, slot, and square groove aligned with each other. This facilitates the insertion of the first and second insert blocks into the groove.

[0006] Preferably, there are two sets of the first inserts, symmetrically distributed on both sides of the center of the screen surface; similarly, there are two sets of the second inserts, symmetrically distributed on both sides of the center of the screen surface. This improves the stability of the fixed connection between the screen and the frame.

[0007] Preferably, a limiting rod is fixedly connected to the surface of the locking block, and a limiting hole is formed on the surface of the screen, with the limiting rod inserted into the limiting hole. This prevents the locking block from shifting or shaking due to accidental impacts, thus avoiding affecting the engagement of the first and second insert blocks in the locking slot and further improving the stability of the screen fixation.

[0008] Preferably, an L-shaped clamp is fixedly connected to the surface of the frame, and the surface of the screen is clamped to the inside of the L-shaped clamp. This fixes the edge of the screen, preventing warping over time, reducing the probability of deformation, and extending the screen's lifespan.

[0009] Preferably, the adjusting rod has an adjusting hole on its surface, the support rod has a sleeve fixedly connected to its surface, the sleeve has a pin slidably connected inside, the pin has a pull rod fixedly connected to its surface, the pull rod has a second spring sleeved on its surface, and the pin is inserted into the adjusting hole. Here, by adjusting the tilt angle of the screen, the flow speed of the sand on the screen can be controlled, allowing sand of different particle sizes more time to separate and pass through the screen, thereby improving the fineness and accuracy of the screening and better separating the fine sand that meets the requirements.

[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0011] 1. This utility model, by setting a structure of a locking block, a first insert block, a first spring, a second insert block, a first pressure rod, and a second pressure rod, allows for easy replacement of the screen by pressing the first and second pressure rods. The first and second insert blocks are squeezed and slide inside the locking block, pressing the first spring. Then, the locking block can be removed from the screen for replacement. This achieves screen fixation, making the screen fixing method more convenient and improving the ease of screen assembly and disassembly, as well as the work efficiency of replacing screens with different mesh sizes. Compared to fixing with bolts, it avoids the problem of bolts corroding together with the frame and being difficult to disassemble.

[0012] 2. This utility model incorporates a support rod, adjusting rod, sleeve, pull rod, pin, and second spring. When the tilt angle of the screen needs to be changed, the frame is held down, and then the pull rod is pulled. The pull rod causes the pin to slide on the temporal part of the sleeve. The position of the pin corresponding to the adjustment hole on the adjusting rod is then changed. After adjustment, the pull rod is released, and the pin, under the action of the second spring, inserts into the corresponding adjustment hole. This allows the flow speed of sand on the screen to be controlled by adjusting the tilt angle of the screen, giving sand of different particle sizes more time to stratify and pass through the screen, thereby improving the fineness and accuracy of screening and better separating fine sand that meets the requirements. Attached Figure Description

[0013] Figure 1 This utility model provides a schematic diagram of a sand screening device for construction engineering.

[0014] Figure 2 This utility model provides a bottom view of a sand screening device for construction engineering.

[0015] Figure 3 This utility model provides an exploded view of a sand screening device for construction engineering.

[0016] Figure 4 This utility model provides a partially exploded view of a sand screening device for construction engineering.

[0017] Figure 5 This utility model provides an exploded view of the locking block of a sand screening device for construction engineering.

[0018] Figure 6 This utility model proposes a sand screening device for construction engineering. Figure 3 Enlarged view of point A in the middle;

[0019] Figure 7 This utility model proposes a sand screening device for construction engineering. Figure 4 Enlarged view of section B in the middle.

[0020] Legend:

[0021] 1. Support frame; 2. Frame; 3. Screen; 4. Locking block; 5. Groove; 6. Locking slot; 7. Limiting hole; 8. Square groove; 9. First insert block; 10. Spring No. 1; 11. Second insert block; 12. First pressure rod; 13. Second pressure rod; 14. Limiting rod; 15. L-shaped locking rod; 16. Support rod; 17. Adjusting rod; 18. Adjusting hole; 19. Sleeve; 20. Pin; 21. Pull rod; 22. Spring No. 2. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] Example 1

[0025] Please see Figure 1-6 This utility model provides a technical solution: a sand screening device for construction engineering, including a support frame 1, a frame 2 rotatably connected to the surface of the support frame 1, a screen 3 fixedly connected to the surface of the frame 2, a locking block 4 provided on the surface of the screen 3, the locking block 4 engaging with the frame 2, a square groove 8 formed on the surface of the locking block 4, a first insert 9 slidably connected inside the square groove 8, a first spring 10 fixedly connected to the surface of the first insert 9, a second insert 11 fixedly connected to the other end of the first spring 10, a first pressure rod 12 and a second pressure rod 13 fixedly connected to the surfaces of the first insert 9 and the second insert 11, respectively, a support rod 16 rotatably connected to the surface of the frame 2, an adjusting rod 17 fixedly connected to the inner side of the support frame 1, the bottom end of the support rod 16 fixedly connected to the adjusting rod 17, and a groove formed on the surface of the screen 3. 5. The surface of the frame 2 is provided with a slot 6. The slot 6, the groove 5, and the square groove 8 are aligned with each other. This facilitates the insertion of the first insert 9 and the second insert 11 into the slot 6. There are two sets of the first insert 9, which are symmetrically distributed on both sides of the middle of the surface of the screen 3. There are also two sets of the second insert 11, which are symmetrically distributed on both sides of the middle of the surface of the screen 3. This can improve the stability of the fixed connection between the screen 3 and the frame 2. The surface of the block 4 is fixedly connected with a limiting rod 14. The surface of the screen 3 is provided with a limiting hole 7. The limiting rod 14 is inserted into the limiting hole 7. This can prevent the block 4 from shifting or shaking due to accidental impact, so as not to affect the engagement of the first insert 9 and the second insert 11 with the slot 6, and further improve the stability of the screen 3.

[0026] Example 2

[0027] Please see Figure 2-7An L-shaped clamping rod 15 is fixedly connected to the surface of frame 2. The surface of screen 3 is clamped inside the L-shaped clamping rod 15. This can fix the edge of screen 3, prevent the screen 3 from warping after long-term use, reduce the probability of deformation, and help improve the service life of screen 3. An adjustment hole 18 is opened on the surface of adjustment rod 17. A sleeve 19 is fixedly connected to the surface of support rod 16. A pin 20 is slidably connected inside the sleeve 19. A pull rod 21 is fixedly connected to the surface of pin 20. A second spring 22 is sleeved on the surface of pull rod 21. Pin 20 is inserted into the inside of adjustment hole 18. By adjusting the tilt angle of screen 3, the flow speed of sand on screen 3 can be controlled, allowing sand of different particle sizes to have more time to be layered and screened, thereby improving the fineness and accuracy of screening and better separating fine sand that meets the requirements.

[0028] Working Principle: During use, first place the device in the designated position. Then, adjust the tilt angle of the screen 3 according to the usage requirements. When it is necessary to change the tilt angle of the screen 3 relative to the support frame 1, hold the frame 2 and then pull the pull rod 21. The pull rod 21 causes the pin 20 to slide inside the sleeve 19. Then, rotate the support rod 16 and change the position of the pin 20 corresponding to the adjustment hole 18 on the adjusting rod 17. After adjustment, release the pull rod 21. The pin 20, under the action of the second spring 22, inserts into the corresponding adjustment hole 18. This allows the flow speed of sand on the screen 3 to be controlled by adjusting the tilt angle of the screen 3, giving sand of different particle sizes more time to stratify and pass through the screen, thereby improving the fineness and accuracy of screening and better... When separating the fine sand that meets the requirements, and when disassembling and replacing the screen 3, press the first pressure rod 12 and the second pressure rod 13. The first insert 9 and the second insert 11 are pressed into the square groove 8 on the card block 4 and slide, squeezing the first spring 10. Then, remove the card block 4 from the screen 3. The first insert 9 and the second insert 11 are successively disengaged from the inside of the card groove 6 and the groove 5. The limiting rod 14 is disengaged from the limiting hole 7 on the screen 3. Then, the screen 3 can be replaced. This achieves the fixation of the screen 3, making the fixing method of the screen 3 more convenient. It is beneficial to improve the convenience of disassembling and assembling the screen 3 and the work efficiency of replacing screens with different screen holes. Compared with the bolt fixing method, it can avoid the problem of bolts corroding together with the frame 2 and being difficult to disassemble.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A sand screening device for construction engineering, comprising a support frame (1), characterized in that: The support frame (1) is rotatably connected to a frame (2), the frame (2) is fixedly connected to a screen (3), the screen (3) is provided with a locking block (4), the locking block (4) is engaged with the frame (2), the locking block (4) is provided with a square groove (8) on its surface, the square groove (8) is slidably connected to a first insert (9), the first insert (9) is fixedly connected to a first spring (10), the other end of the first spring (10) is fixedly connected to a second insert (11), the first insert (9) and the second insert (11) are respectively fixedly connected to a first pressure rod (12) and a second pressure rod (13), the frame (2) is rotatably connected to a support rod (16), the inner side of the support frame (1) is fixedly connected to an adjusting rod (17), and the bottom end of the support rod (16) is fixedly connected to the adjusting rod (17).

2. The sand screening equipment for construction engineering according to claim 1, characterized in that: The surface of the screen (3) is provided with a slot (5), and the surface of the frame (2) is provided with a groove (6). The groove (6), the slot (5) and the square groove (8) are aligned with each other.

3. The sand screening equipment for construction engineering according to claim 1, characterized in that: There are two sets of the first insert (9), and the two sets of the first insert (9) are symmetrically distributed on both sides of the middle part of the surface of the screen (3). There are two sets of the second insert (11), and the two sets of the second insert (11) are symmetrically distributed on both sides of the middle part of the surface of the screen (3).

4. The sand screening equipment for construction engineering according to claim 1, characterized in that: A limiting rod (14) is fixedly connected to the surface of the card block (4), and a limiting hole (7) is opened on the surface of the screen (3). The limiting rod (14) is inserted into the limiting hole (7).

5. The sand screening equipment for construction engineering according to claim 1, characterized in that: The surface of the frame (2) is fixedly connected to an L-shaped clamp (15), and the surface of the screen (3) is clamped to the inside of the L-shaped clamp (15).

6. The sand screening equipment for construction engineering according to claim 1, characterized in that: The adjusting rod (17) has an adjusting hole (18) on its surface. The support rod (16) is fixedly connected to a sleeve (19). The sleeve (19) is slidably connected to a pin (20). The pin (20) is fixedly connected to a pull rod (21). The pull rod (21) is fitted with a second spring (22). The pin (20) is inserted into the adjusting hole (18).

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