Adjustable anti-blocking gravel screening device

Abstract

The adjustable anti-blocking gravel screening device comprises a fixing plate and an annular frame, screen holes are formed in the upper surface of the fixing plate, a sliding groove is formed in the bottom of the inner side wall of the fixing plate, and a movable screen is connected into the sliding groove in a sliding mode. According to the adjustable anti-blocking gravel screening device, through the arrangement of the movable screen mesh, the positioning plate and the lead screw, in the using process, gravel is poured on screen holes, after a vibration motor is started, the gravel is screened through the inclined face of the fixing plate and the screen holes, and when small screen holes or large screen holes need to be used for screening, the lead screw can be in threaded connection with the positioning plate, so that the screening efficiency is improved. The handle is rotated in the forward direction or the reverse direction to enable the lead screw to rotate, meanwhile, the movable screen can slide in the sliding groove, the lead screw can drive the movable screen and the screen holes to be staggered after rotation, the hole diameter of gravel discharging is enlarged or reduced, and therefore the effect of changing the screen holes is achieved, and screening can be conducted according to requirements under the condition that the screening device is not replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of sand and gravel screening, in particular to an adjustable anti-clogging sand and gravel screening device. Background Art

[0002] The sand and gravel screening device is a special equipment used to screen and separate granular materials such as sand and gravel. If a large amount of stone is carried in the process of collecting sand and gravel, a screen can be used to screen the mixed sand and gravel. The stone and small particles can be separated by vibration or mechanical force. The appropriate screen size and equipment can be selected as needed to perform coarse screening and fine screening operations to achieve the purpose of separating stones and small particles. When the specifications of the screen plate need to be replaced, workers are required to stop the production line and then replace the screen plate. First, the old screen plate needs to be removed and then the new screen plate needs to be installed. This process often consumes a lot of workers' time.

[0003] After searching, China Patent Publication (Announcement) No. 202211026647.2 discloses a sand and gravel screening device. This patent performs automatic pressing and clamping, so that after the replacement is completed, the screen plate can be quickly locked, thereby further speeding up the replacement process. Although the above patent has the function of quick replacement, it does not have the effect of directly adjusting the size of the screen holes. Since most of the screen holes of the screening device are fixed, if you want to screen larger or smaller sand and gravel, you need to replace the screen or the screening device, and the current screening device is not convenient to clean once it is blocked. Therefore, it is necessary to design an adjustable anti-blocking sand and gravel screening device. Utility Model Content

[0004] The main purpose of the utility model is to provide an adjustable anti-clogging sand and gravel screening device, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] An adjustable anti-clogging sand and gravel screening device comprises a fixed plate and an annular frame, the upper surface of the fixed plate is provided with sieve holes, the bottom of the inner side wall of the fixed plate is provided with a slide groove, the interior of the slide groove is slidably connected with a movable screen, and one side of the lower surface of the fixed plate is fixedly connected with a positioning plate; one side of the positioning plate is threadedly connected with a screw rod, one end of the screw rod passes through one side of the positioning plate and extends to the other side of the positioning plate, one end of the screw rod is fixedly connected with a handle, one side of the handle is inserted with a limiting rod, the screw rod is rotatably connected to the movable screen, a positioning hole is provided on one side of the positioning plate, and vibration motors are installed on both sides of the fixed plate.

[0007] In order to achieve a supporting effect, as an adjustable anti-clogging sand and gravel screening device of the utility model, the lower surface of the annular frame is fixedly connected with a supporting leg, and the lower surface of the supporting leg is rotatably connected with a wheel.

[0008] In order to achieve the purpose of rotation, as an adjustable anti-clogging sand and gravel screening device of the utility model, the inner wall of the annular frame is rotatably connected with an annular rack, and one side of the annular rack is fixedly connected with a transverse plate.

[0009] In order to achieve the telescopic effect, as an adjustable anti-clogging sand and gravel screening device of the utility model, the inner wall of the horizontal plate is fixedly connected with a telescopic cylinder, one end of the telescopic cylinder is fixedly connected with the fixed plate, and the outer surface of the telescopic cylinder is sleeved with a spring.

[0010] In order to achieve a rotating effect, as an adjustable anti-clogging sand and gravel screening device of the utility model, a motor is installed on one side of the annular frame, and a driving wheel is fixedly connected to the output end of the motor.

[0011] In order to achieve the purpose of transmission, as an adjustable anti-clogging sand and gravel screening device of the utility model, the driving wheel is meshedly connected with the annular rack.

[0012] In order to facilitate the feeding of sand and gravel, as an adjustable anti-clogging sand and gravel screening device of the utility model, a feeding frame is fixedly connected to one side of the upper surface of the annular frame.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. In the utility model, through the arrangement of the movable screen, the positioning plate and the screw rod, during use, the sand and gravel are poured onto the screen holes, and after the vibration motor is started, the sand and gravel are screened through the inclined surface and the screen holes of the fixed plate. When small or large screen holes are needed for screening, the screw rod can be connected to the positioning plate through a thread, and the handle can be turned forward or reversely to rotate the screw rod, and the movable screen can slide inside the slide groove. After rotation, the screw rod can drive the movable screen to be misaligned with the screen hole, and the aperture of the sand and gravel feeding is enlarged or reduced, thereby achieving the effect of changing the screen hole, and screening can be performed as required without replacing the screening device.

[0015] 2. In the utility model, through the arrangement of the annular rack, the servo motor and the driving wheel, during use, once too large sand and gravel are stuck inside the sieve hole, the servo motor can be started to drive the driving wheel to rotate, and through the meshing effect of the driving wheel and the annular rack, the annular rack can rotate on the inner wall of the annular frame at the same time. After the annular rack is subjected to the force, it drives the cross plate to flip the telescopic cylinder and the fixed plate, and completely flips the sieve hole down. At this time, starting the vibration motor can effectively shake off the stuck large pieces of sand and gravel, which has the function of preventing blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view structural schematic diagram of an embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the fixing plate of an embodiment of the utility model;

[0018] Figure 3 This is a schematic diagram of the annular frame structure of an embodiment of the utility model;

[0019] Figure 4 This is a schematic diagram of the positioning plate structure of an embodiment of the utility model;

[0020] Figure 5 It is a rear structural schematic diagram of an embodiment of the utility model.

[0021] In the figure: 1. fixed plate; 2. annular frame; 3. sieve hole; 4. movable screen; 5. positioning plate; 6. screw rod; 7. handle; 8. vibration motor; 9. supporting leg; 10. wheel; 11. annular rack; 12. horizontal plate; 13. telescopic cylinder; 14. spring; 15. servo motor; 16. driving wheel; 17. feed frame. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example

[0024] like Figure 1-5 As shown, an adjustable anti-clogging sand and gravel screening device includes a fixed plate 1 and a ring frame 2, a sieve hole 3 is opened on the upper surface of the fixed plate 1, a slide groove is opened at the bottom of the inner side wall of the fixed plate 1, a movable screen 4 is slidably connected inside the slide groove, and a positioning plate 5 is fixedly connected to one side of the lower surface of the fixed plate 1;

[0025] In this embodiment, a screw rod 6 is threadedly connected to one side of the positioning plate 5, one end of the screw rod 6 passes through one side of the positioning plate 5 and extends to the other side of the positioning plate 5, one end of the screw rod 6 is fixedly connected to a handle 7, one side of the handle 7 is inserted with a limiting rod, the screw rod 6 is rotatably connected to the movable screen 4, a positioning hole is opened on one side of the positioning plate 5, and vibration motors 8 are installed on both sides of the fixed plate 1.

[0026] During specific use, pour sand and gravel onto the sieve hole 3, start the vibration motor 8, and screen the sand and gravel through the inclined surface of the fixed plate 1 and the sieve hole 3. When small holes or large holes are needed for screening, the screw rod 6 can be connected to the positioning plate 5 through a threaded connection, and the handle 7 can be turned forward or reversely to rotate the screw rod 6. At the same time, the movable screen 4 can slide inside the slide groove. After rotation, the screw rod 6 can drive the movable screen 4 to be misaligned with the sieve hole 3 to expand or reduce the aperture of the sand and gravel feeding, thereby achieving the effect of changing the sieve hole 3. Screening can be carried out as needed without replacing the screening device.

[0027] In this embodiment, the lower surface of the annular frame 2 is fixedly connected to a supporting leg 9 , and the lower surface of the supporting leg 9 is rotatably connected to a wheel 10 .

[0028] During specific use, the supporting legs 9 provide a supporting and stable effect, and when the screening device needs to be moved, the wheels 10 provide a convenient moving effect.

[0029] In this embodiment, an annular rack 11 is rotatably connected to the inner wall of the annular frame 2 , and a transverse plate 12 is fixedly connected to one side of the annular rack 11 .

[0030] When in use, the annular rack 11 can rotate in the annular frame 2, which can drive the transverse plate 12 to flip, so as to facilitate the cleaning of the screen.

[0031] In this embodiment, a telescopic cylinder 13 is fixedly connected to the inner wall of the transverse plate 12 , one end of the telescopic cylinder 13 is fixedly connected to the fixed plate 1 , and a spring 14 is sleeved on the outer surface of the telescopic cylinder 13 .

[0032] When in use, after the vibration motor 8 is started, the telescopic tube 13 has a telescopic effect, and the spring 14 can rebound, so that the fixed plate 1 vibrates after being subjected to the force, which is convenient for screening of sand and gravel.

[0033] In this embodiment, a servo motor 15 is installed on one side of the annular frame 2 , and a driving wheel 16 is fixedly connected to the output end of the servo motor 15 .

[0034] When in use, the servo motor 15 is started to drive the driving wheel 16 to rotate, thus achieving a transmission effect.

[0035] In this embodiment, the driving wheel 16 is meshingly connected to the annular rack 11 .

[0036] When in use, the driving wheel 16 is meshed with the annular rack 11 , and the driving wheel 16 rotates to drive the annular rack 11 to rotate inside the annular frame 2 .

[0037] In this embodiment, a feed frame 17 is fixedly connected to one side of the upper surface of the annular frame 2 .

[0038] When in use, the sand and gravel to be screened are added through the feed frame 17 so that they fall on the screen for screening.

[0039] Working principle: During use, pour the sand and gravel onto the sieve hole 3, start the vibration motor 8, and screen the sand and gravel through the inclined surface of the fixed plate 1 and the sieve hole 3. When small or large holes are needed for screening, the screw rod 6 can be connected to the positioning plate 5 through the threaded connection, and the handle 7 can be turned forward or reversely to rotate the screw rod 6. At the same time, the movable screen 4 can slide inside the slide groove. After rotation, the screw rod 6 can drive the movable screen 4 to be misaligned with the sieve hole 3 to expand or reduce the aperture of the sand and gravel feeding, thereby achieving the effect of changing the sieve hole 3. When the screening device is replaced, screening can be carried out as required. Once too large sand and gravel are stuck in the screen hole 3, the servo motor 15 can be started to drive the driving wheel 16 to rotate. Through the meshing effect of the driving wheel 16 and the annular rack 11, the annular rack 11 can rotate on the inner wall of the annular frame 2. After the annular rack 11 is subjected to the force, it drives the cross plate 12 to flip the telescopic cylinder 13 and the fixed plate 1, and completely flips the screen hole 3 down. At this time, starting the vibration motor 8 can effectively shake off the stuck large pieces of sand and gravel, which has the function of preventing blockage.

[0040] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An adjustable anti-clogging sand and gravel screening device, comprising a fixed plate (1) and an annular frame (2), characterized in that: The upper surface of the fixed plate (1) is provided with a sieve hole (3), the bottom of the inner side wall of the fixed plate (1) is provided with a slide groove, the interior of the slide groove is slidably connected with a movable screen (4), and one side of the lower surface of the fixed plate (1) is fixedly connected with a positioning plate (5); one side of the positioning plate (5) is threadedly connected with a screw rod (6), one end of the screw rod (6) passes through one side of the positioning plate (5) and extends to the other side of the positioning plate (5), one end of the screw rod (6) is fixedly connected with a handle (7), one side of the handle (7) is plugged with a limit rod, the screw rod (6) is rotatably connected to the movable screen (4), one side of the positioning plate (5) is provided with a positioning hole, and both sides of the fixed plate (1) are equipped with a vibration motor (8).

2. The adjustable anti-clogging sand and gravel screening device according to claim 1 is characterized in that: The lower surface of the annular frame (2) is fixedly connected to a support leg (9), and the lower surface of the support leg (9) is rotatably connected to a wheel (10).

3. The adjustable anti-clogging sand and gravel screening device according to claim 1, characterized in that: The inner wall of the annular frame (2) is rotatably connected to an annular rack (11), and one side of the annular rack (11) is fixedly connected to a transverse plate (12).

4. The adjustable anti-clogging sand and gravel screening device according to claim 3 is characterized in that: A telescopic cylinder (13) is fixedly connected to the inner side wall of the transverse plate (12), one end of the telescopic cylinder (13) is fixedly connected to the fixed plate (1), and a spring (14) is sleeved on the outer surface of the telescopic cylinder (13).

5. The adjustable anti-clogging sand and gravel screening device according to claim 1, characterized in that: A servo motor (15) is installed on one side of the annular frame (2), and a driving wheel (16) is fixedly connected to the output end of the servo motor (15).

6. The adjustable anti-clogging sand and gravel screening device according to claim 5, characterized in that: The driving wheel (16) is meshingly connected to the annular rack (11).

7. The adjustable anti-clogging sand and gravel screening device according to claim 1, characterized in that: A feeding frame (17) is fixedly connected to one side of the upper surface of the annular frame (2).

Images