Screening device for layered collection of tea leaves

Abstract

The utility model provides a tea layering collection screening device which comprises a screening box and a support, the screening box is fixedly installed on the top of the support, and two screening plates are arranged in the screening box. The utility model relates to the technical field of tea screening. According to the screening device for layered collection of the tea leaves, the vibrating mechanism is arranged, after the tea leaves are placed in the screening box, a motor is started, the motor drives a rotating rod and an extrusion block to rotate, in the rotation process of the extrusion block, after the extrusion block makes contact with the inner wall of an extrusion groove, a transmission block moves downwards, and the tea leaves are separated from the extrusion groove; meanwhile, a transmission block can compress a vibration spring, when an extrusion block does not make contact with the inner wall of an extrusion groove, the vibration spring can be suddenly reset to generate vibration, two screening plates are driven to vibrate at the same time, tea leaves on the top screening plate can fall onto the bottom screening plate through screening holes, the two screening plates screen the tea leaves in a layered mode, and the screening efficiency can be effectively improved; and the tea screening effect is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tea screening, in particular to a screening device for collecting tea leaves in layers. Background Art

[0002] Tea leaves, commonly known as tea, generally include the leaves and buds of the tea tree. During the tea processing process, screening devices are used to screen the tea leaves and remove tea leaves that do not meet the standards.

[0003] Publication number "CN217963448U" provides a screening device for collecting tea leaves in layers, including a bottom plate, a frame rotatably mounted on the top of the bottom plate, a collection box fixed on the top of the frame, a second screen box arranged above the collection box, a first screen box arranged above the second screen box, and a fence movably connected to the discharge end of the collection box, the second screen box, and the first screen box, and the second screen box and the first screen box are respectively fixed with supporting arms, the bottoms of the supporting arms are respectively fixedly connected with guide blocks, and a driving mechanism for driving the guide blocks to move back and forth horizontally is installed on the frame. The device can screen in layers, and the screening fineness is good.

[0004] However, the above device still has the following problems during implementation:

[0005] The purpose of tea screening is to screen out some tea leaves that do not meet the size and retain the tea leaves that meet the composite standards. However, the existing screening devices generally have low screening efficiency and it is difficult to remove tea leaves that do not meet the standards, thereby reducing the efficiency of tea screening. Utility Model Content

[0006] The utility model aims to provide a screening device for collecting tea leaves in layers, so as to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A screening device for collecting tea leaves in layers comprises a screening box and a bracket. The screening box is fixedly mounted on the top of the bracket. Two screening plates are arranged inside the screening box. A plurality of screening holes are provided on the top of the screening plates. The two screening plates are supported by a transmission block. A vibration mechanism is arranged on one side of the screening box. A toggle mechanism is arranged on the top of the vibration mechanism.

[0009] Preferably, the vibration mechanism includes a motor fixedly mounted on one side of the screening box, the output end of the motor passes through the interior of the screening box and is fixedly connected to a rotating rod, one end of the rotating rod is rotatably connected to the inner wall of the screening box through a rotating shaft, an extrusion block is fixedly sleeved on the surface of the rotating rod, an extrusion groove used in conjunction with the extrusion block is provided on one side of the transmission block, two vibration springs are fixedly connected to the bottom of the transmission block, and the bottom of the vibration spring is fixedly connected to the inner wall of the screening box.

[0010] Preferably, the toggle mechanism includes linkage blocks movably arranged on both sides of the screening box, two driving rods are fixedly connected to one side of the linkage block, one end of the driving rod passes through the interior of the screening box and is fixedly connected to the toggle block, a plurality of toggle rods are fixedly connected to the bottom of the toggle block, L-shaped connecting frames are fixedly connected to both sides of the linkage block, and a transmission mechanism is arranged on one side of the L-shaped connecting frame.

[0011] Preferably, the transmission mechanism comprises two transmission boxes fixedly arranged on the top of the screening box, two first pistons are arranged inside the transmission box, and the two first pistons are fixedly connected to a linkage rod on one side away from each other, and one end of the linkage rod is fixedly connected to one side of the L-shaped connecting frame;

[0012] Two compression boxes are fixedly connected to the inner wall of the screening box, and the compression box is fixedly connected to the transmission box through a transmission pipe. A second piston is arranged inside the compression box, and a traction rod is fixedly connected to the bottom of the second piston. The bottom end of the traction rod penetrates into the interior of the shell and is fixedly connected to the top of the transmission block.

[0013] Preferably, a return spring is fixedly connected to one side of the linkage block, and one end of the return spring is fixedly connected to one side of the screening box.

[0014] Preferably, a guide block is fixedly connected to the inner wall of the screening box, and a guide groove for use with the guide block is provided on one side of the transmission block.

[0015] Preferably, one side of the screening box is movably connected with a box door via a hinge, and the tea leaves on the screening plate can be taken out by opening the box door.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model is provided with a vibration mechanism. After the tea leaves are placed in the screening box, the motor is started, and the motor drives the rotating rod and the extrusion block to rotate. During the rotation of the extrusion block, when the extrusion block contacts the inner wall of the extrusion groove, the transmission block moves downward, and the transmission block compresses the vibration spring. When the extrusion block does not contact the inner wall of the extrusion groove, the vibration spring suddenly resets to generate vibration, and drives the two screening plates to vibrate at the same time. The tea leaves on the top screening plate will fall from the sieve holes onto the bottom screening plate. The two screening plates screen the tea leaves in layers, which can effectively improve the screening efficiency and thus improve the tea screening effect.

[0018] 2. The utility model is provided with a toggle mechanism, which can drive the traction rod and the second piston to move downward when the transmission block moves downward. At this time, the compression box is under negative pressure, and the gas in the transmission box will enter the compression box through the transmission pipe, and at the same time drive the two second pistons to move toward each other. When the transmission block moves upward, it will push the traction rod and the second piston to move upward, and push the gas in the compression box back to the transmission box, so that the two second pistons are reset. During this process, the second piston makes reciprocating linear movements, and at the same time, the second piston will drive the L-shaped connecting frame, the linkage block and the driving rod to move back and forth, and the driving rod will drive the toggle block and the toggle rod to move back and forth, thereby achieving the effect of toggling the tea leaves on the screening plate to prevent the accumulation of tea leaves from affecting the screening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0020] Figure 2 It is a schematic diagram of a cross-section of the main structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the moving track of the transmission block and the extrusion block of the utility model;

[0022] Figure 4 It is a three-dimensional diagram of the vibration mechanism and the toggle mechanism of the utility model;

[0023] Figure 5 It is a three-dimensional diagram of the vibration mechanism of the utility model;

[0024] Figure 6 It is a three-dimensional diagram of the local structure of the toggle mechanism of the utility model.

[0025] In the figure: 1. screening box; 2. bracket; 3. screening plate; 4. sieve hole; 5. transmission block; 6. motor; 7. rotating rod; 8. extrusion block; 9. extrusion groove; 10. vibration spring; 11. linkage block; 12. driving rod; 13. toggle block; 14. toggle rod; 15. L-shaped connecting frame; 16. transmission box; 17. first piston; 18. linkage rod; 19. compression box; 20. second piston; 21. traction rod; 22. reset spring; 23. guide block; 24. guide groove; 25. box door. DETAILED DESCRIPTION

[0026] 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.

[0027] See also Figures 1-6 , the utility model provides a technical solution: Embodiment 1:

[0028] A screening device for collecting tea leaves in layers comprises a screening box 1 and a bracket 2. The screening box 1 is fixedly mounted on the top of the bracket 2. Two screening plates 3 are arranged inside the screening box 1. A plurality of screening holes 4 are opened on the top of the screening plates 3. The two screening plates 3 are supported by a transmission block 5. A vibration mechanism is arranged on one side of the screening box 1, and a toggle mechanism is arranged on the top of the vibration mechanism.

[0029] One implementation method of the present embodiment 1 is as follows: the vibration mechanism includes a motor 6 fixedly mounted on one side of the screening box 1, the output end of the motor 6 passes through the interior of the screening box 1, and is fixedly connected to a rotating rod 7, one end of the rotating rod 7 is rotatably connected to the inner wall of the screening box 1 through a rotating shaft, an extrusion block 8 is fixedly sleeved on the surface of the rotating rod 7, an extrusion groove 9 used in conjunction with the extrusion block 8 is opened on one side of the transmission block 5, two vibration springs 10 are fixedly connected to the bottom of the transmission block 5, and the bottom of the vibration spring 10 is fixedly connected to the inner wall of the screening box 1.

[0030] In this embodiment, it is considered that the screening efficiency of the screening device is generally low, and it is difficult to screen out tea leaves that do not meet the standards, thereby reducing the efficiency of tea screening. Therefore, by setting a vibration mechanism, after the tea leaves are placed in the screening box 1, the motor 6 is started, and the motor 6 drives the rotating rod 7 and the extrusion block 8 to rotate, such as Figure 3As shown, during the rotation of the extrusion block 8, when the extrusion block 8 contacts the inner wall of the extrusion groove 9, the transmission block 5 will move downward, and the transmission block 5 will compress the vibration spring 10. When the extrusion block 8 does not contact the inner wall of the extrusion groove 9, the vibration spring 10 will suddenly reset to generate vibration, and at the same time drive the two screening plates 3 to vibrate, and the tea leaves on the top screening plate 3 will fall from the sieve holes 4 onto the bottom screening plate 3. The two screening plates 3 screen the tea leaves in layers, which can effectively improve the screening efficiency, thereby improving the effect of tea screening.

[0031] The invention solves the problem that the screening efficiency of the screening device is generally low, and it is difficult to screen out tea leaves that do not meet the standards, thereby reducing the tea screening efficiency;

[0032] It should be noted that Figure 3 Among them, S1 is the moving trajectory of the extrusion block 8, and S2 is the moving trajectory of the transmission block 5.

[0033] A guide block 23 is fixedly connected to the inner wall of the screening box 1 , and a guide groove 24 for use with the guide block 23 is provided on one side of the transmission block 5 .

[0034] In this embodiment, by providing the guide block 23 and the guide groove 24 , when the extrusion block 8 rotates the inner wall of the multiple extrusion groove 9 for extrusion, the moving trajectory of the transmission block 5 can be limited so that it can only slide downward along the trajectory of the guide block 23 and the guide groove 24 .

[0035] One side of the screening box 1 is movably connected with a box door 25 via a hinge, and the tea leaves on the screening plate 3 can be taken out by opening the box door 25 .

[0036] In this embodiment, by providing the box door 25, after the screening is completed, the tea leaves on the bottom screening plate 3 can be taken out by opening the box door 25, which makes it easy to take out the tea leaves. Embodiment 2:

[0037] On the basis of Example 1, the vibration mechanism in this embodiment can improve the efficiency of tea screening by vibrating the screening plate 3. However, considering that tea may also accumulate during the vibration process, which will affect the screening effect, the toggle mechanism in this application includes a linkage block 11 movably arranged on both sides of the screening box 1, one side of the linkage block 11 is fixedly connected to two driving rods 12, one end of the driving rod 12 passes through the interior of the screening box 1 and is fixedly connected to a toggle block 13, and the bottom of the toggle block 13 is fixedly connected to a plurality of toggle rods 14, and both sides of the linkage block 11 are fixedly connected to an L-shaped connecting frame 15, and one side of the L-shaped connecting frame 15 is provided with a transmission mechanism.

[0038] In this embodiment, it is considered that the tea leaves may also accumulate during the vibration process, which will affect the screening effect. Therefore, by setting a toggle mechanism, when the transmission block 5 moves downward, the traction rod 21 and the second piston 20 can be driven to move downward. At this time, the compression box 19 is under negative pressure, and the gas in the transmission box 16 will enter the compression box 19 through the transmission pipe, and at the same time drive the two second pistons 20 to move toward the side close to each other. When the transmission block 5 moves upward, it will push the traction rod 21 and the second piston 20 to move upward, and push the gas in the compression box 19 back to the transmission box 16, so that the two second pistons 20 are reset. In this process, the second piston 20 makes a reciprocating linear movement, and at the same time, the second piston 20 will drive the L-shaped connecting frame 15, the linkage block 11 and the driving rod 12 to reciprocate, and the driving rod 12 will drive the toggle block 13 and the toggle rod 14 to reciprocate, thereby achieving the effect of toggling the tea leaves on the screening plate 3, avoiding the accumulation of tea leaves affecting the screening effect.

[0039] The problem that tea leaves may accumulate during the vibration process and affect the screening effect is solved.

[0040] The transmission mechanism includes two transmission boxes 16 fixedly arranged on the top of the screening box 1, and two first pistons 17 are arranged inside the transmission box 16. The two first pistons 17 are fixedly connected to the sides away from each other with a linkage rod 18, and one end of the linkage rod 18 is fixedly connected to one side of the L-shaped connecting frame 15;

[0041] Two compression boxes 19 are fixedly connected to the inner wall of the screening box 1. The compression box 19 is fixedly connected to the transmission box 16 through a transmission pipe. A second piston 20 is arranged inside the compression box 19. A traction rod 21 is fixedly connected to the bottom of the second piston 20. The bottom end of the traction rod 21 passes through the interior of the shell and is fixedly connected to the top of the transmission block 5.

[0042] In this embodiment, a transmission mechanism is provided so that when the transmission block 5 moves downward, the traction rod 21 and the second piston 20 can be driven to move downward. At this time, the compression box 19 is under negative pressure, and the gas in the transmission box 16 enters the compression box 19 through the transmission pipe, and at the same time drives the two second pistons 20 to move toward each other. When the transmission block 5 moves upward, the traction rod 21 and the second piston 20 will be pushed to move upward, and the gas in the compression box 19 will be pushed back to the transmission box 16, so that the two second pistons 20 are reset. In this process, the second piston 20 makes a reciprocating linear movement, thereby controlling the toggle block 13 and the toggle rod 14 in the toggle mechanism to move back and forth, thereby playing a transmission role.

[0043] A return spring 22 is fixedly connected to one side of the linkage block 11 , and one end of the return spring 22 is fixedly connected to one side of the screening box 1 .

[0044] In this embodiment, by providing a reset spring 22 , the reaction force of the reset spring 22 can achieve the function of assisting the linkage block 11 , the driving rod 12 , the toggle block 13 and the toggle rod 14 to reset.

[0045] Working principle: After placing the tea leaves in the screening box 1, the motor 6 is started, and the motor 6 drives the rotating rod 7 and the squeezing block 8 to rotate. Figure 3 As shown, during the rotation of the extrusion block 8, when the extrusion block 8 contacts the inner wall of the extrusion groove 9, the transmission block 5 will move downward, and the transmission block 5 will compress the vibration spring 10. When the extrusion block 8 does not contact the inner wall of the extrusion groove 9, the vibration spring 10 will suddenly reset to generate vibration, and at the same time drive the two screening plates 3 to vibrate, and the tea leaves on the top screening plate 3 will fall from the sieve holes 4 onto the bottom screening plate 3. The two screening plates 3 screen the tea leaves in layers, which can effectively improve the screening efficiency, thereby improving the effect of tea screening.

[0046] When the transmission block 5 moves downward, it drives the traction rod 21 and the second piston 20 to move downward. At this time, the compression box 19 is under negative pressure, and the gas in the transmission box 16 will enter the compression box 19 through the transmission pipe, and at the same time drive the two second pistons 20 to move toward each other. When the transmission block 5 moves upward, it will push the traction rod 21 and the second piston 20 to move upward, push the gas in the compression box 19 back to the transmission box 16, so that the two second pistons 20 are reset. During this process, the second piston 20 makes reciprocating linear movements. At the same time, the second piston 20 will drive the L-shaped connecting frame 15, the linkage block 11 and the driving rod 12 to reciprocate, and the driving rod 12 will drive the toggle block 13 and the toggle rod 14 to reciprocate, thereby achieving the effect of toggling the tea leaves on the screening plate 3 to prevent the accumulation of tea leaves from affecting the screening effect.

[0047] It should be noted that the motor 6 is a device or equipment existing in the prior art, or a device or equipment that can be realized in the prior art, and the specific composition and principle of the power supply of the motor 6 are clear to those skilled in the art, so they are not described in detail.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A screening device for layered collection of tea leaves, comprising a screening box (1) and a bracket (2), wherein the screening box (1) is fixedly installed on the top of the bracket (2), and is characterized in that: Two screening plates (3) are arranged inside the screening box (1), a plurality of screening holes (4) are provided on the top of the screening plates (3), and the two screening plates (3) are supported by a transmission block (5). A vibration mechanism is arranged on one side of the screening box (1), and a toggle mechanism is arranged on the top of the vibration mechanism.

2. The screening device for layered collection of tea leaves according to claim 1, wherein: The vibration mechanism comprises a motor (6) fixedly mounted on one side of the screening box (1); an output end of the motor (6) penetrates into the interior of the screening box (1) and is fixedly connected to a rotating rod (7); one end of the rotating rod (7) is rotatably connected to the inner wall of the screening box (1) via a rotating shaft; an extrusion block (8) is fixedly sleeved on the surface of the rotating rod (7); an extrusion groove (9) for use with the extrusion block (8) is provided on one side of the transmission block (5); two vibration springs (10) are fixedly connected to the bottom of the transmission block (5); and the bottom of the vibration spring (10) is fixedly connected to the inner wall of the screening box (1).

3. The screening device for layered collection of tea leaves according to claim 2, characterized in that: The toggle mechanism comprises a linkage block (11) movably arranged on both sides of the screening box (1); two driving rods (12) are fixedly connected to one side of the linkage block (11); one end of the driving rod (12) penetrates into the interior of the screening box (1) and is fixedly connected to a toggle block (13); a plurality of toggle rods (14) are fixedly connected to the bottom of the toggle block (13); both sides of the linkage block (11) are fixedly connected to an L-shaped connecting frame (15); and a transmission mechanism is arranged on one side of the L-shaped connecting frame (15).

4. The screening device for layered collection of tea leaves according to claim 3, characterized in that: The transmission mechanism comprises two transmission boxes (16) fixedly arranged on the top of the screening box (1), two first pistons (17) are arranged inside the transmission box (16), and the two first pistons (17) are fixedly connected to a linkage rod (18) on the sides away from each other, and one end of the linkage rod (18) is fixedly connected to one side of the L-shaped connecting frame (15); Two compression boxes (19) are fixedly connected to the inner wall of the screening box (1); the compression boxes (19) are fixedly connected to the transmission box (16) via a transmission pipe; a second piston (20) is arranged inside the compression box (19); a traction rod (21) is fixedly connected to the bottom of the second piston (20); the bottom end of the traction rod (21) passes through the interior of the housing and is fixedly connected to the top of the transmission block (5).

5. The screening device for layered collection of tea leaves according to claim 3, characterized in that: A return spring (22) is fixedly connected to one side of the linkage block (11), and one end of the return spring (22) is fixedly connected to one side of the screening box (1).

6. The screening device for layered collection of tea leaves according to claim 2, characterized in that: A guide block (23) is fixedly connected to the inner wall of the screening box (1), and a guide groove (24) for use with the guide block (23) is provided on one side of the transmission block (5).

7. The screening device for layered collection of tea leaves according to claim 1, characterized in that: One side of the screening box (1) is movably connected to a box door (25) via a hinge, and tea leaves on the screening plate (3) can be taken out by opening the box door (25).

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