Sand filtering device

Abstract

The utility model belongs to the technical field of filtering devices, and particularly relates to a gravel filtering device which comprises a shell and further comprises a filtering plate, an annular extending body is fixedly connected to the outer edge of the filtering plate, and the extending body is arranged on the inner side of the shell in a matched mode. And the annular positioning frame is fixed to the inner wall of the shell, a rotating ring is rotationally connected to the annular positioning frame, wedge-shaped blocks distributed in an array mode are fixedly connected to the upper surface of the rotating ring, supporting legs are fixedly connected to the lower surface of an extending body, and rolling wheels are installed at the lower ends of the supporting legs. The annular positioning frame is fixed to the inner wall of the shell, the rotating ring is rotationally connected to the annular positioning frame, the wedge-shaped blocks can make contact with the corresponding rolling wheels in the rotating process of the rotating ring, then the filter plate is driven to ascend and descend in a reciprocating mode, blockage of the filter plate can be avoided, the mode is reasonable in design, the motor drives the rotating ring to rotate, and operation is convenient. The requirement for the load of the motor is low, and the problems that an existing device is unreasonable in design and poor in stability are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering devices, in particular to a sand and gravel filtering device. Background Art

[0002] During the construction process, sand and gravel are used as raw materials for construction. Since sand and gravel of different specifications have different uses in construction, they need to be screened and filtered before use. For example, a concrete sand and gravel filtering device disclosed in the patent publication number CN202023340410.0. In order to prevent the filter plate from being blocked, the filter plate is slidably connected to the inner side of the housing, and a motor is installed on the housing. The motor can drive the support rod and the eccentric wheel to rotate. The eccentric wheel contacts the bearing plate on the lower surface of the filter plate, and then realizes the reciprocating lifting of the filter plate to avoid the blockage of the filter plate. However, there are certain deficiencies in this solution. In this solution, the motor drives the support rod and the eccentric wheel to rotate. During the working process, the eccentric wheel supports the bearing plate. With such frequent reciprocating work, it is bound to affect the load of the motor. The motor load is unstable and the torque is large, making the motor prone to failure and requiring frequent maintenance. At the same time, this working method will generate large vibrations, so improvements are needed. Content of the Utility Model

[0003] (1) Technical Problems to be Solved

[0004] In view of the deficiencies of the prior art, the utility model provides a sand and gravel filtering device. By fixing an annular positioning frame on the inner wall of the housing and rotatably connecting a rotating ring to the annular positioning frame, during the rotation of the rotating ring, the wedge block can contact the corresponding roller, and then drive the filter plate to reciprocate up and down, which can avoid the blockage of the filter plate. This method is reasonably designed. Just driving the rotating ring to rotate by the motor requires less load on the motor, and solves the problems of unreasonable design and poor stability of the current device.

[0005] (2) Technical Solutions

[0006] The utility model specifically adopts the following technical solutions to achieve the above purposes:

[0007] A sand and gravel filtering device includes a housing, and further includes:

[0008] A filter plate, an annular extension body is fixedly connected to the outer edge of the filter plate, and the extension body is adapted to the inner side of the housing;

[0009] An annular positioning frame is fixed on the inner wall of the housing, and a rotating ring is rotatably connected to the annular positioning frame. An array of wedge blocks is fixedly connected to the upper surface of the rotating ring, and a support leg is fixedly connected to the lower surface of the extension body. A roller is installed at the lower end of the support leg;

[0010] The guide rod is fixed on the upper surface of the extension body, and the guide rod is slidably connected to the corresponding fixed limit seat on the inner wall of the housing.

[0011] Furthermore, a support plate is fixedly connected to the inner wall of the housing, and a spring is fixed between the upper surface of the support plate and the lower surface of the extension body.

[0012] Furthermore, the annular positioning frame is composed of an annular fixing part fixedly connected to the inner wall of the housing and an annular connecting part integrally formed on the inner wall of the annular fixing part. The rotating ring is rotatably connected to the outer wall of the annular connecting part.

[0013] Furthermore, a toothed ring is fixedly connected to the lower surface of the rotating ring, and a motor is installed on the housing. The output shaft of the motor extends to the inner side of the housing and is provided with a gear, and the gear meshes with the toothed ring.

[0014] Furthermore, a protective cover is fixedly connected to the inner wall of the housing, and the protective cover covers the outside of the guide rod and the limit seat.

[0015] Furthermore, a discharge pipe is communicated with the bottom of the housing, a storage barrel is arranged below the discharge pipe, and a support frame is fixedly connected to the side wall of the housing.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a sand and stone filtering device, which has the following beneficial effects:

[0018] 1. In the utility model, by fixedly connecting an annular positioning frame on the inner wall of the housing, rotatably connecting a rotating ring on the annular positioning frame, and fixing wedge-shaped blocks distributed in an array on the rotating ring. During use, the motor can drive the rotating ring to rotate through the relationship between the gear and the toothed ring. When the rotating ring rotates, the position of the wedge-shaped blocks changes, and then the wedge-shaped surfaces of the wedge-shaped blocks contact the rollers, driving the filter plate and the extension body to move upward. The filter plate reciprocates along the limit seat, realizing the shaking of the filter plate, and then clearing the blockage on the filter plate to avoid blockage. The driving components of this device are reasonably designed. The motor rotates through the gear, and then can make the rotating ring rotate on the annular positioning frame through the meshing relationship between the gear and the toothed ring, realizing the reciprocating up and down movement of the filter plate. This method runs smoothly, the load of the motor is also very stable, and the loss of the motor is small. Therefore, the motor can be well protected and will not be damaged, and the use effect is improved.

[0019] 2. In the utility model, this device runs smoothly, has small vibration and low noise during use, and has good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the utility model;

[0021] Figure 2 Schematic diagram of the internal structure of the housing in the present utility model;

[0022] Figure 3 Schematic diagram of the structure of the annular positioning frame in the present utility model.

[0023] In the figure: 1. Housing; 2. Protective cover; 3. Filter plate; 4. Motor; 5. Storage barrel; 6. Support frame; 7. Annular positioning frame; 701. Annular fixing part; 702. Annular connecting part; 8. Rotating ring; 9. Extension body; 10. Guide rod; 11. Limit seat; 12. Support plate; 13. Spring; 14. Support leg; 15. Roller; 16. Wedge block; 17. Tooth ring; 18. Discharge pipe. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment

[0026] As Figure 1 and Figure 2As shown in the figure, a sand and gravel filtering device proposed by an embodiment of the present utility model includes a housing 1, which is the main part of the device. It further includes: a filter plate 3 for filtering sand and gravel. An annular extension body 9 is fixedly connected to the outer edge of the filter plate 3 for protecting the outside of the filter plate 3. The extension body 9 is adapted to the inside of the housing 1; the extension body 9 and the filter plate 3 can move up and down, and when moving, the blockages on the holes can be removed. An annular positioning frame 7 is fixed to the inner wall of the housing 1, and a rotating ring 8 is rotatably connected to the annular positioning frame 7. The annular positioning frame 7 is provided for the installation of the rotating ring 8 so that the rotating ring 8 can rotate. The upper surface of the rotating ring 8 is fixedly connected with wedge-shaped blocks 16 distributed in an array. When the rotating ring 8 rotates, the wedge-shaped blocks 16 can move. And the lower surface of the extension body 9 is fixedly connected with support feet 14, and rollers 15 are installed at the lower ends of the support feet 14. When the rotating ring 8 rotates, it drives the wedge-shaped blocks 16 to move. The wedge-shaped surface of the wedge-shaped block 16 contacts the rollers 15, and then drives the filter plate 3 and the extension body 9 to move upward. When the wedge-shaped block 16 leaves the roller 15, the filter plate 3 can move downward, so that the filter plate 3 reciprocates up and down, forming a shaking effect, and then the blockages are removed; a guide rod 10 is fixed to the upper surface of the extension body 9 to realize the lifting limit of the filter plate 3, and the guide rod 10 is slidably connected to a limit seat 11 fixedly corresponding to the inner wall of the housing 1. When the filter plate 3 and the extension body 9 move up and down, the guide rod 10 moves along the limit seat 11 to realize the stable lifting of the filter plate 3.

[0027] As Figure 1 and Figure 2 shown, in some embodiments, a support plate 12 is fixedly connected to the inner wall of the housing 1, and a spring 13 is fixed between the upper surface of the support plate 12 and the lower surface of the extension body 9; the support plate 12 and the spring 13 are provided for supporting the filter plate 3 and have a buffering function, so that the filter plate 3 can be lifted and lowered stably. It should be noted that the wedge-shaped block 16 is located below the support plate 12 and will not cause interference when rotating.

[0028] As Figure 2 and Figure 3 shown, in some embodiments, the annular positioning frame 7 is composed of an annular fixing part 701 fixedly connected to the inner wall of the housing 1 to realize the fixation of the annular positioning frame 7 on the inner wall of the housing 1, and an annular connecting part 702 integrally formed on the inner wall of the annular fixing part 701. The rotating ring 8 is rotatably connected to the outer wall of the annular connecting part 702, and then the rotating connection of the rotating ring 8 is realized.

[0029] As Figure 1 and Figure 2As shown, in some embodiments, a toothed ring 17 is fixedly connected to the lower surface of the swivel ring 8, and a motor 4 is installed on the housing 1. The output shaft of the motor 4 extends to the inside of the housing 1 and is provided with a gear, and the gear meshes with the toothed ring 17. It should be noted that the output shaft of the motor 4 is rotatably connected to the housing 1, and the gear is located on one side of the annular positioning frame 7. When the motor 4 drives the gear to rotate, the swivel ring 8 can be stably rotated through the meshing relationship between the gear and the toothed ring 17, enabling stable rotational drive of the swivel ring 8. When the motor 4 operates, the load is stable and the loss is small, and frequent maintenance is not required.

[0030] As Figure 1 and Figure 2 As shown, in some embodiments, a protective cover 2 is fixedly connected to the inner wall of the housing 1, and the protective cover 2 covers the outside of the guide rod 10 and the limit seat 11. The setting of the protective cover 2 can achieve the protective effect on the guide rod 10 and the limit seat 11, preventing sand and gravel from contacting the guide rod 10, the limit seat 11, and the extension body 9, thereby protecting the components.

[0031] As Figure 1 and Figure 2 As shown, in some embodiments, a discharge pipe 18 is connected to the bottom of the housing 1 for discharging sand and gravel. A storage barrel 5 is arranged below the discharge pipe 18 to store sand and gravel, and a support frame 6 is fixedly connected to the side wall of the housing 1 for supporting the device.

[0032] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sand and gravel filtering device, comprising a housing (1), characterized in that, It further includes: A filter plate (3), an annular extension body (9) is fixedly connected to the outer edge of the filter plate (3), and the extension body (9) is fitted inside the housing (1); An annular positioning frame (7) is fixed to the inner wall of the housing (1), and a rotating ring (8) is rotatably connected to the annular positioning frame (7). Wedge-shaped blocks (16) are fixedly connected to the upper surface of the rotating ring (8) in an array distribution, and support legs (14) are fixedly connected to the lower surface of the extension body (9). A roller (15) is installed at the lower end of the support legs (14); A guide rod (10) is fixed to the upper surface of the extension body (9), and the guide rod (10) is slidably connected to a limit seat (11) fixedly provided on the inner wall of the housing (1).

2. The sand and gravel filtering device according to claim 1, characterized in that: A support plate (12) is fixedly connected to the inner wall of the housing (1), and a spring (13) is fixed between the upper surface of the support plate (12) and the lower surface of the extension body (9).

3. A sand and gravel filtering device according to claim 1, characterized in that: The annular positioning frame (7) is composed of an annular fixing part (701) fixedly connected to the inner wall of the housing (1) and an annular connecting part (702) integrally formed on the inner wall of the annular fixing part (701). The rotating ring (8) is rotatably connected to the outer wall of the annular connecting part (702).

4. A sand and gravel filtering device according to claim 1, characterized in that: A toothed ring (17) is fixedly connected to the lower surface of the rotating ring (8), and a motor (4) is installed on the housing (1). The output shaft of the motor (4) extends to the inside of the housing (1) and is provided with a gear, and the gear meshes with the toothed ring (17).

5. A sand and gravel filtering device according to claim 1, characterized in that: A protective cover (2) is fixedly connected to the inner wall of the housing (1), and the protective cover (2) covers the outside of the guide rod (10) and the limit seat (11).

6. The sand and gravel filtering device according to claim 1, wherein: A discharge pipe (18) is communicated with the bottom of the housing (1), a storage barrel (5) is arranged below the discharge pipe (18), and a support frame (6) is fixedly connected to the side wall of the housing (1).

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