Sand screening device for water conservancy construction

Abstract

The utility model belongs to the technical field of water conservancy projects, and particularly relates to a sand screening device for water conservancy construction, which comprises a concentric-square-shaped frame and a base connected with the concentric-square-shaped frame, a vibration mechanism is arranged in the concentric-square-shaped frame, the concentric-square-shaped frame comprises a first concentric-square-shaped frame, a second concentric-square-shaped frame and a third concentric-square-shaped frame, the first concentric-square-shaped frame is connected with the base, and the second concentric-square-shaped frame is connected with the base. A first adjusting rod, a first hydraulic cylinder and a first screen are arranged on the upper end face of the first concentric-square-shaped frame, the first adjusting rod and the first hydraulic cylinder are arranged on the two sides of the end face of the first concentric-square-shaped frame respectively, the first screen is arranged between the first adjusting rod and the first hydraulic cylinder, one end of the first adjusting rod is hinged to the upper end face of the first concentric-square-shaped frame, and the other end of the first adjusting rod is rotationally connected with a second concentric-square-shaped frame. The output end of the first hydraulic cylinder is rotationally connected with the lower end face of the second concentric-square-shaped frame, a second adjusting rod, a second hydraulic cylinder and a second screen are arranged on the upper end face of the second concentric-square-shaped frame, and the sizes of grids on the first screen, the second screen and the third screen are sequentially increased. Compared with the prior art, the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy projects, and more specifically, to a sand screening device for water conservancy construction. Background Art

[0002] Sand is widely used in the construction of various water conservancy projects. For the construction of some water conservancy projects, a large amount of fine sand and cement need to be mixed and stirred to prepare dams that can resist rain erosion. However, the directly mined sand is mixed with large particles of sand, so the directly mined sand needs to be screened before it can be used.

[0003] For example, the sand screening device for water conservancy project construction disclosed in the authorization announcement number CN220658307U can drive the second return frame to swing up and down under the action of the vibration motor and the shock-absorbing block and the screen on the top surface of the second return frame, and at the same time drive the screen to perform a swing-type sand screening operation, thereby improving the overall uniformity of the sand screening; the support device composed of the U-shaped frame, the support seat, the mounting seat, the swing arm 1, the swing arm 2, the connecting seat, the guide rod, the moving cavity, the telescopic rod and the buffer spring can effectively support the second return frame during the up and down swing of the second return frame through the cooperation of the articulated swing arm 1 and the swing arm 2 and the left and right sliding of the connecting seat, as well as the telescopic rod and the buffer spring, thereby ensuring the stability of the device during use. The utility model can not only perform a comprehensive and uniform screening operation on sand, but also ensure stability during use, thereby improving the use efficiency of the device.

[0004] In the above scheme, only sand of the same specification can be screened. If sand of different coarseness needs to be screened, the screens of different mesh sizes must be replaced, and the sand must be screened a second time after replacement, which wastes time and more energy, increases production costs and has low work efficiency. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a sand screening device for water conservancy construction that can screen sand of different coarsenesses at the same time.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A sand screening device for water conservancy construction includes a circular frame and a base connected to the circular frame. A vibration mechanism is provided in the circular frame. The circular frame includes a first circular frame, a second circular frame and a third circular frame. The first circular frame is connected to the base. An adjusting rod, a hydraulic cylinder and a screen are provided on the upper end surface of the first circular frame.

[0008] The adjusting rod 1 and the hydraulic cylinder 1 are respectively placed on both sides of the end surface of the first circular frame, the screen 1 is placed between the adjusting rod 1 and the hydraulic cylinder 1, and the end of the adjusting rod 1 is hinged to the upper end surface of the first circular frame.

[0009] The other end of the regulating rod is rotatably connected to the second circular frame, and the output end of the hydraulic cylinder is rotatably connected to the lower end surface of the second circular frame. The upper end surface of the second circular frame is provided with regulating rod 2, hydraulic cylinder 2 and screen 2.

[0010] The second adjusting rod and the second hydraulic cylinder are respectively placed on both sides of the end face of the second circular frame, the second screen is placed between the second adjusting rod and the second hydraulic cylinder, one end of the second adjusting rod is hinged to the second circular frame, the other end of the second adjusting rod is rotatably connected to the lower end face of the third circular frame, the output end of the second hydraulic cylinder is rotatably connected to the lower end face of the second circular frame, and the third circular frame is provided with a third screen.

[0011] The mesh sizes on screen one, screen two and screen three increase in sequence.

[0012] The utility model is further configured as follows: there are multiple vibration mechanisms, each circular frame is connected to a vibration mechanism, the vibration mechanism includes a vibration motor and an H-shaped connecting frame, the H-shaped connecting frame is placed on the lower end surface of the screen, connecting columns are provided at both ends of the H-shaped connecting frame, the other end of the connecting column is connected to the circular frame, and the vibration motor is placed on the H-shaped connecting frame.

[0013] The utility model is further configured as follows: a guide plate is provided at the lower end of the first circular frame, one end of the guide plate is hinged to the lower end of the first circular frame,

[0014] A first accommodating box is provided on a side opposite to the first hydraulic cylinder, and a second accommodating box is provided on a side opposite to the second hydraulic cylinder.

[0015] The utility model is further configured as follows: a hinge seat is provided between the adjusting rod 1 and the first circular frame, and between the adjusting rod 2 and the second circular frame, the hinge seat is placed on the upper end surface of the first circular frame or the second circular frame, and the adjusting rod 1 and the adjusting rod 2 are rotatably connected to the hinge seat.

[0016] The utility model is further configured as follows: a spring 1 is sleeved on the outer peripheral wall of the connecting column, and the connecting column is elastic.

[0017] The utility model is further configured as follows: fastening holes are provided at the four corners of the screen, corresponding docking holes are provided on the circular frame, a fastening rod with a spring 2 on the outer wall is provided in the fastening hole, and the fastening rod is threadedly connected to the docking hole.

[0018] Compared with the shortcomings of the prior art, the beneficial effects of the present invention are:

[0019] By adding multiple circular frames and the mesh size of the screen on each circular frame is different, distributed screening of sand of different coarseness and fineness is achieved, meeting the operator's needs for sand of different coarseness and fineness. Furthermore, sand of different coarseness and fineness is screened at the same time, which also reduces the sand screening time and increases work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the connection between the circular frame and the screen according to an embodiment of the present utility model.

[0022] Base 1, first circular frame 2, second circular frame 3, third circular frame 4, adjusting rod 1 5, hydraulic cylinder 1 6, screen 1 7, adjusting rod 2 8, hydraulic cylinder 2 9, screen 2 10, screen 3 11, vibration motor 12, H-shaped connecting frame 13, guide plate 14, accommodating box 1 15, accommodating box 2 16, spring 1 17, spring 2 18, fastening rod 19. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0025] like Figures 1 to 2 As shown,

[0026] A sand screening device for water conservancy construction comprises a circular frame and a base 1 connected to the circular frame. A vibration mechanism is provided in the circular frame, and sand is screened by vibrating the vibration mechanism.

[0027] There are multiple vibration mechanisms, each circular frame is connected to a vibration mechanism, the vibration mechanism includes a vibration motor 12 and an H-shaped connecting frame 13, the H-shaped connecting frame 13 is placed on the lower end surface of the screen, and connecting columns are provided at both ends of the H-shaped connecting frame 13. The other end of the connecting column is connected to the circular frame. The vibration motor 12 is placed on the H-shaped connecting frame 13. The H-shaped connecting frame prevents the falling sand from being blocked.

[0028] A spring 17 is sleeved on the outer peripheral wall of the connecting column. The connecting column is elastic and can play a shock-absorbing role when the vibration motor 12 vibrates.

[0029] The circular frame includes a first circular frame 2, a second circular frame 3 and a third circular frame 4. The first circular frame 2 is connected to the base 1. The upper end surface of the first circular frame 2 is provided with an adjusting rod 5, a hydraulic cylinder 6 and a screen 7. The adjusting rod 5 and the hydraulic cylinder 6 are respectively placed on both sides of the end surface of the first circular frame 2. The screen 7 is placed between the adjusting rod 5 and the hydraulic cylinder 6. One end of the adjusting rod 5 is hinged to the upper end surface of the first circular frame 2. The adjusting rod 5 and the hydraulic cylinder 6 are used to support the second circular frame 3.

[0030] A drainage plate 14 is provided at the lower end of the first circular frame 2. One end of the drainage plate 14 is hinged to the lower end of the first circular frame 2. The drainage plate 14 drains the sand after three screens. A receiving box 15 is provided on the side opposite to the hydraulic cylinder 1 6, and a receiving box 2 16 is provided on the side opposite to the hydraulic cylinder 2 9, which are used to collect the sand that has been screened sequentially and the sand that has been screened twice, respectively.

[0031] The other end of the adjusting rod is rotatably connected to the second circular frame 3, and the output end of the hydraulic cylinder 6 is rotatably connected to the lower end face of the second circular frame 3. The upper end face of the second circular frame 3 is provided with an adjusting rod 2 8, a hydraulic cylinder 2 9 and a screen 2 10. The adjusting rod 2 8 and the hydraulic cylinder 2 9 are respectively placed on both sides of the end face of the second circular frame 3. The screen 2 10 is placed between the adjusting rod 2 8 and the hydraulic cylinder 2 9. One end of the adjusting rod 2 8 is hinged to the second circular frame 3, and the other end of the adjusting rod 2 8 is rotatably connected to the lower end face of the third circular frame 4. The output end of the hydraulic cylinder 2 9 is rotatably connected to the lower end face of the second circular frame 3. The third circular frame 4 is provided with a screen 3 11, which screens the sand in steps.

[0032] A hinged seat is provided between the adjusting rod 1 5 and the first circular frame 2, and between the adjusting rod 2 8 and the second circular frame 3. The hinged seat is placed on the upper end surface of the first circular frame 2 or the second circular frame 3. The adjusting rod 1 5 and the adjusting rod 2 8 are rotatably connected to the hinged seat for easy adjustment.

[0033] The mesh sizes on screen 1 7, screen 2 10 and screen 3 11 increase in sequence to achieve the diversion of sand of different coarseness and fineness. Fastening holes are provided at the four corners of the screen, and corresponding docking holes are provided on the circular frame. A fastening rod 19 with a spring 2 18 on the outer wall is provided in the fastening hole. The fastening rod 19 is threadedly connected to the docking hole to facilitate the later replacement of the screen. At the same time, the screen can be squeezed by the rebound force of the spring 2 18 to make its connection with the circular frame more stable.

[0034] Working principle: When in use, place sand on screen three 11, then start the vibration motor 12 to screen the sand, and the sand falls from screen three 11 to screen two 10, then the hydraulic cylinder two 9 retracts, the third circular frame 4 tilts, and the sand on screen three 11 is transferred to the containing box two 16. After the sand that falls on screen two 10 is sieved, the hydraulic cylinder one 6 retracts, the second circular frame 3 tilts, and the sand on screen two 10 is transferred to the containing box one 15. The sand on screen one 7 is directly sieved and flows out through the guide plate 14 for use.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A sand screening device for water conservancy construction, comprising a circular frame and a base (1) connected to the circular frame, characterized in that: A vibration mechanism is provided in the circular frame, and the circular frame includes a first circular frame (2), a second circular frame (3) and a third circular frame (4). The first circular frame (2) is connected to the base (1). An adjusting rod (5), a hydraulic cylinder (6) and a screen (7) are provided on the upper end surface of the first circular frame (2). The adjusting rod 1 (5) and the hydraulic cylinder 1 (6) are respectively placed on both sides of the end surface of the first circular frame (2), the screen 1 (7) is placed between the adjusting rod 1 (5) and the hydraulic cylinder 1 (6), and one end of the adjusting rod 1 (5) is hinged to the upper end surface of the first circular frame (2). The other end of the regulating rod is rotatably connected to the second circular frame (3), the output end of the hydraulic cylinder (6) is rotatably connected to the lower end surface of the second circular frame (3), and the upper end surface of the second circular frame (3) is provided with a regulating rod (8), a hydraulic cylinder (9) and a screen (10). The second regulating rod (8) and the second hydraulic cylinder (9) are respectively placed on both sides of the end face of the second circular frame (3), the second screen (10) is placed between the second regulating rod (8) and the second hydraulic cylinder (9), one end of the second regulating rod (8) is hinged to the second circular frame (3), the other end of the second regulating rod (8) is rotatably connected to the lower end face of the third circular frame (4), the output end of the second hydraulic cylinder (9) is rotatably connected to the lower end face of the second circular frame (3), and the third circular frame (4) is provided with a third screen (11). The mesh sizes on screen one (7), screen two (10) and screen three (11) increase in sequence.

2. A sand screening device for water conservancy construction according to claim 1, characterized in that: The vibration mechanism has multiple components, each circular frame is connected to a vibration mechanism, and the vibration mechanism includes a vibration motor (12) and an H-shaped connecting frame (13). The H-shaped connecting frame (13) is placed on the lower end surface of the screen. Connecting columns are provided at both ends of the H-shaped connecting frame (13). The other end of the connecting column is connected to the circular frame. The vibration motor (12) is placed on the H-shaped connecting frame (13).

3. A sand screening device for water conservancy construction according to claim 2, characterized in that: A guide plate (14) is provided at the lower end of the first circular frame (2), and one end of the guide plate (14) is hinged to the lower end of the first circular frame (2). A receiving box 1 (15) is provided on the side relative to the hydraulic cylinder 1 (6), and a receiving box 2 (16) is provided on the side relative to the hydraulic cylinder 2 (9).

4. A sand screening device for water conservancy construction according to claim 3, characterized in that: A hinge seat is provided between the adjusting rod 1 (5) and the first circular frame (2), and between the adjusting rod 2 (8) and the second circular frame (3). The hinge seat is placed on the upper end surface of the first circular frame (2) or the second circular frame (3). The adjusting rod 1 (5) and the adjusting rod 2 (8) are rotatably connected to the hinge seat.

5. The sand screening device for water conservancy construction according to claim 4, characterized in that: The outer peripheral wall of the connecting column is sleeved with a spring 1 (17), and the connecting column is elastic.

6. The sand screening device for water conservancy construction according to claim 5, characterized in that: The four corners of the screen are provided with fastening holes, and corresponding docking holes are provided on the circular frame. A fastening rod (19) with a spring (18) provided on the outer wall is provided in the fastening hole, and the fastening rod (19) is threadedly connected to the docking hole.

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