Impurity screening device for organic source soil conditioner production

Abstract

The invention discloses an impurity screening device for organic source soil conditioner production, and relates to the field of screening devices.The impurity screening device comprises a screening rack and a roller, a motor and a transmission shaft are installed on the screening rack, the roller is installed on the transmission shaft, and driving gears are installed on the motor and the transmission shaft. It needs to be explained that in the embodiment of the invention, when the screen mesh is damaged, the weight in the transfer box is rapidly increased, so that the unfolding ring moves to pull the folding screen mesh to unfold and cover the screen mesh, temporary screening can be achieved, meanwhile, a large number of unscreened raw materials can be effectively prevented from being mixed into the screened raw materials, and the screening efficiency is improved. And reworking is required. In addition, when the two push-pull frames move, the two push-pull frames are separated from the supporting plate, at the moment, under the contraction force of two separation springs, the supporting plate is pulled to move downwards, the supporting plate moves downwards to drive a motor to move downwards, two driving gears are disengaged emergently, and the problem that a large number of unscreened raw materials are leaked due to continuous rotation is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of screening devices, and in particular to an impurity screening device for the production of organic source soil conditioners. Background Art

[0002] Organic source soil conditioners mainly include organic fertilizers, organic wastes, and bio-organic fertilizers, such as animal feces, plant residues, etc., which are made through processes such as fermentation and composting. Municipal solid waste, agricultural wastes, etc. can be used to improve soil after treatment; and because organic source soil conditioners are fermented by microorganisms and contain beneficial microorganisms and organic substances, they can promote soil microbial activities and improve soil fertility. Organic source soil conditioners are widely used in various types of soil improvement, especially in acidic or barren soils, where they can improve crop yield and quality, promote plant root development, improve the stress resistance of crops, and reduce the use of chemical fertilizers; in addition, organic source soil conditioners can slowly release nutrients, reduce the use of chemical fertilizers, lower agricultural costs, and protect the ecological environment.

[0003] It should be noted that during the production of organic source soil conditioners, a drum screening machine is needed to screen the raw materials of organic source soil conditioners to ensure the production quality of organic source soil conditioners. However, in the actual production process, since organic source soil conditioners contain a large amount of organic matter, when these organic matters are screened on the screen mesh, it is extremely easy to corrode the screen mesh, causing the screen mesh to rust and break. And with the continuous rotation of the drum, the unscreened raw materials are continuously thrown out, which will not only increase the damage of the screen mesh, but also cause a large amount of unscreened raw materials to leak directly and mix with the screened raw materials, resulting in a large amount of raw materials needing to be reworked. Summary of the Invention

[0004] The purpose of the present invention is to provide an impurity screening device for the production of organic source soil conditioners to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: An impurity screening device for the production of organic source soil conditioners, which includes a screening frame and a drum. A motor and a transmission shaft are installed on the screening frame. The drum is installed on the transmission shaft. Driving gears are installed on both the motor and the transmission shaft. The two driving gears are meshed with each other. And a plurality of screen meshes are installed on the drum. A screen material discharge cylinder and a raw material discharge cylinder are installed on the bottom side of the screening frame; It further includes an automatic discharging device which is installed on the bottom side of the screening rack and is used for turning over and discharging the screened raw materials. The automatic discharging device includes a transfer box. An installation frame is installed on the bottom side of the material screening cylinder. Two return pull rods are movably installed on the bottom side of the installation frame. The transfer box is rotatably installed between the two return pull rods. A leakage compensation device is installed on the roller and is used for socketting and compensating a plurality of the screening meshes. The leakage compensation device includes a plurality of installation rings which are all installed on the roller. An unfolding ring is arranged on one side of the installation ring. A folding screen is connected between the installation ring and the unfolding ring. The unfolding ring drives the folding screen to be socketed on the screening mesh. It further includes an emergency disconnection device which is installed on the screening rack and is used for separating the motor from the transmission shaft. The emergency disconnection device includes a motor bracket which is installed on one side of the screening rack. A support plate is movably installed on the motor bracket. The motor is installed on the support plate. The downward movement of the support plate drives the separation of the motor from the transmission shaft.

[0006] Furthermore, in a preferred embodiment of the present invention, the automatic discharging device further includes two turning shafts which are respectively installed on both sides of the transfer box and are respectively rotatably installed in the two return pull rods. A turning push plate is socketed on one of the turning shafts. A rotating push frame is installed at the end of the transmission shaft. And a T-shaped push frame is slidably installed on one side of the screening rack. The rotating push frame rotates and presses the T-shaped push frame to move, so as to drive the turning push plate to rotate.

[0007] Furthermore, in a preferred embodiment of the present invention, an installation groove is formed in the return pull rod, and the turning shaft is installed in the installation groove. A reset torsion spring is installed on the inner wall of the installation groove, and the other end of the reset torsion spring is installed on the turning shaft.

[0008] Furthermore, in a preferred embodiment of the present invention, a return spring is installed on the top side of the return pull rod, and the top end of the return spring is installed on the inner wall of the installation frame.

[0009] Furthermore, in a preferred embodiment of the present invention, the leakage compensation device further includes a plurality of drive shafts which are respectively rotatably installed on the plurality of installation rings, and a plurality of the unfolding rings are respectively movably installed on the plurality of drive shafts. An arc-shaped drive groove is formed in the drive shaft, and a drive block is installed on the inner wall of the unfolding ring, and the drive block extends into the drive groove.

[0010] Furthermore, in a preferred embodiment of the present invention, a driving column is installed at one end of the driving shaft, and the driving column is rotatably installed on an adjacent mounting ring; The installation ring is provided with an installation cavity, a transverse sliding shaft is arranged in the installation cavity, a driving groove is provided on the driving column, and one end of the transverse sliding shaft extends into the driving groove.

[0011] Further, in a preferred embodiment of the present invention, a transverse slide is movably mounted on one side of the screening frame, and a plurality of transverse slide shafts are mounted in the transverse slide; A locking frame is provided on the bottom side of the transverse sliding frame. The locking frame is installed on one of the pull-back rods. A locking block is installed on the locking frame. The locking block is inserted into the locking frame.

[0012] Furthermore, in a preferred embodiment of the present invention, lifting slots are provided on both sides of the motor bracket, and the support plate is movably installed in the two lifting slots; A separation spring is installed on the inner wall of the bottom side of the lifting slot, and the top end of the separation spring is installed on the bottom side of the support plate.

[0013] Furthermore, in a preferred embodiment of the present invention, two push-pull slide grooves are provided on the motor bracket, a push-pull frame is movably installed in the push-pull slide groove, and the push-pull frame is installed on the transverse sliding frame; The support plate is provided with two insertion slots, and the two push-pull racks are respectively inserted into the two insertion slots.

[0014] Furthermore, in a preferred embodiment of the present invention, a contraction spring is installed on the inner wall of the push-pull slide groove, and the other end of the contraction spring is installed on the push-pull frame.

[0015] The beneficial effects of the impurity screening device for producing organic soil conditioner proposed by the present invention are: In the present invention, through the setting of the automatic discharging device, when the raw materials are screened, the transfer box is driven to rotate through the flip shaft so that the raw materials are flipped and fall, thereby realizing the function of automatic discharging. At the same time, when the screen is damaged, the leaked unscreened raw materials can be effectively received by the transfer box, and when the transfer box moves downward, the flip push plate is separated from the T-shaped push frame. At this time, the transfer box is no longer flipped, which can effectively prevent the unscreened raw materials from mixing into the screened raw materials.

[0016] Further, in the present invention, through the setting of the leakage compensation device, if the screen mesh is damaged, under the rotation of the drum and the impact of the raw materials, the damage will be aggravated. At this time, a large amount of unscreened raw materials will be quickly thrown out and enter the transfer box through the material outlet of the sieve. At this time, the weight in the transfer box will increase rapidly, which will drive the two return pull rods to move downward, causing the locking frame to drive the locking block to disengage from the transverse sliding frame. Then, the transverse sliding frame will drive a plurality of transverse sliding shafts to move, causing the driving column to drive the driving shaft to rotate. At this time, the unfolding ring will move to pull the folding screen mesh to unfold and cover the screen mesh, which can not only achieve temporary screening, but also effectively prevent a large amount of unscreened raw materials from mixing into the screened raw materials, resulting in the problem of rework.

[0017] Furthermore, in the present invention, through the setting of the emergency disconnection device, when the two push-pull frames move and disengage from the support plate, at this time, under the contraction force of the two separation springs, the support plate is pulled downward. The downward movement of the support plate drives the motor to move downward, causing the two driving gears to be emergently disengaged to avoid continuous rotation and resulting in the problem of leakage of a large amount of unscreened raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of an impurity screening device for the production of organic source soil conditioner provided by an embodiment of the present invention; Figure 2 is a structural schematic diagram of the connection between the transfer box and the mounting ring and other structures of an impurity screening device for the production of organic source soil conditioner provided by an embodiment of the present invention; Figure 3 is a structural schematic diagram of the connection between the transfer box and the mounting frame and other structures of an impurity screening device for the production of organic source soil conditioner provided by an embodiment of the present invention; Figure 4 is a partial cross-sectional structural schematic diagram of the connection between the mounting frame and the return pull rod and other structures of an impurity screening device for the production of organic source soil conditioner provided by an embodiment of the present invention; Figure 5 is a structural schematic diagram of the connection between the screen mesh and the mounting ring and other structures of an impurity screening device for the production of organic source soil conditioner provided by an embodiment of the present invention; Figure 6 is a partial structural schematic diagram of the connection between the driving shaft and the driving column and other structures of an impurity screening device for the production of organic source soil conditioner provided by an embodiment of the present invention; Figure 7 is an impurity screening device for the production of organic source soil conditioner provided by an embodiment of the present invention Figure 5 structural schematic diagram of part A therein; Figure 8A partial sectional view structural diagram showing the connection of the installation ring and the deployment ring and other structures of an impurity screening device for the production of organic source soil conditioner provided by an embodiment of the present invention; Figure 9 A partial sectional view structural diagram showing the connection of the transverse moving carriage and the locking frame and other structures of an impurity screening device for the production of organic source soil conditioner provided by an embodiment of the present invention; Figure 10 A structural diagram showing the connection of the motor and the motor bracket of an impurity screening device for the production of organic source soil conditioner provided by an embodiment of the present invention; Figure 11 A partial sectional view structural diagram showing the connection of the motor bracket and the support plate and other structures of an impurity screening device for the production of organic source soil conditioner provided by an embodiment of the present invention.

[0019] In the figure: 1 - screening frame; 2 - drum; 3 - sieve mesh; 4 - motor; 5 - transmission shaft; 6 - driving gear; 7 - automatic discharging device; 701 - transfer box; 702 - mounting frame; 703 - return pull rod; 704 - turning shaft; 705 - turning push plate; 706 - T-shaped push frame; 707 - rotating push frame; 708 - return spring; 709 - mounting groove; 710 - reset torsion spring; 8 - leakage compensation device; 801 - installation ring; 802 - deployment ring; 803 - folding sieve mesh; 804 - driving shaft; 805 - driving groove; 806 - driving block; 807 - installation cavity; 808 - transverse moving carriage; 809 - transverse moving shaft; 810 - driving column; 811 - driving groove; 812 - locking frame; 813 - locking block; 9 - emergency disconnection device; 901 - motor bracket; 902 - support plate; 903 - lifting groove; 904 - separating spring; 905 - push-pull chute; 906 - push-pull frame; 907 - insertion groove; 908 - contraction spring; 10 - sieve material outlet cylinder; 11 - raw material outlet cylinder. Detailed implementation manners

[0020] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0022] It should be noted that like reference numerals and letters refer to like items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In addition, in the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is customarily placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0024] In addition, the terms "horizontal", "vertical", "perpendicular", etc. do not mean that the component is required to be absolutely vertical, but can be slightly inclined. For example, "vertical" only means that its direction is more vertical relative to "horizontal", and does not mean that the structure must be completely vertical, but can be slightly inclined.

[0025] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Please refer to the attached drawings of the specification Figures 1-11 An impurity screening device for the production of organic source soil conditioner provided by an embodiment of the present invention includes a screening frame 1 and a drum 2. A motor 4 and a transmission shaft 5 are installed on the screening frame 1. The drum 2 is installed on the transmission shaft 5. Driving gears 6 are installed on both the motor 4 and the transmission shaft 5. The two driving gears 6 are meshed with each other. And a plurality of screening meshes 3 are installed on the drum 2. A screening material outlet cylinder 10 and a raw material outlet cylinder 11 are installed on the bottom side of the screening frame 1.

[0027] Furthermore, in the embodiment of the present invention, an automatic discharging device 7 is further included. The automatic discharging device 7 is installed on the bottom side of the screening frame 1 and is used for turning over and discharging the screened raw materials. Specifically, the automatic discharging device 7 includes a transfer box 701. An installation frame 702 is installed on the bottom side of the screening material outlet tube 10. Two return pull rods 703 are movably installed on the bottom side of the installation frame 702. The transfer box 701 is rotatably installed between the two return pull rods 703. It should be noted that in the embodiment of the present invention, during discharging, the screened raw materials fall into the transfer box 701, and during the rotation of the transmission shaft 5, the transfer box 701 turns over to complete discharging.

[0028] Please refer to the accompanying Figure 2 and Figures 5-9 figures, and more specifically, a device for impurity screening in the production of organic source soil conditioner provided by the embodiment of the present invention. A leakage compensation device 8 is installed on the drum 2. The leakage compensation device 8 is used for socketting and compensating multiple screening meshes 3. The leakage compensation device 8 includes multiple installation rings 801. The multiple installation rings 801 are all installed on the drum 2. An expansion ring 802 is provided on one side of the installation ring 801. A folding screen 803 is connected between the installation ring 801 and the expansion ring 802. The expansion ring 802 drives the folding screen 803 to be socketed on the screening mesh 3. It should be noted that in the embodiment of the present invention, if the screening mesh is damaged, under the rotation of the drum 2 and the impact of the raw materials, the damage is aggravated. At this time, a large amount of unscreened raw materials are quickly thrown out. At this time, the expansion ring 802 pulls the folding screen 803 to expand and cover the screening mesh 3, which can not only achieve temporary screening, but also effectively prevent a large amount of unscreened raw materials from mixing into the screened raw materials, causing the problem of rework.

[0029] Furthermore, in the embodiment of the present invention, an emergency disconnection device 9 is further included. The emergency disconnection device 9 is installed on the screening frame 1 and is used for separating the motor 4 from the transmission shaft 5. Specifically, the emergency disconnection device 9 includes a motor bracket 901. The motor bracket 901 is installed on one side of the screening frame 1. A support plate 902 is movably installed on the motor bracket 901. The motor 4 is installed on the support plate 902. The downward movement of the support plate 902 drives the separation of the motor 4 from the transmission shaft 5. It should be noted that in the embodiment of the present invention, when the screening mesh 3 is damaged, the support plate 902 moves downward and disengages from the motor 4, avoiding continuous rotation and causing the problem of leakage of a large amount of unscreened raw materials.

[0030] Please refer to the accompanying Figures 2-4 figures. Furthermore, for a device for impurity screening in the production of organic source soil conditioner provided by the embodiment of the present invention, the automatic discharging device 7 further includes two turning shafts 704. The two turning shafts 704 are respectively installed on both sides of the transfer box 701, and the two turning shafts 704 are respectively rotatably installed in the two return pull rods 703. In addition, a turning push plate 705 is sleeved on a turning shaft 704. A turning push frame 707 is installed at the end of a transmission shaft 5. And a T-shaped push frame 706 is slidably installed on one side of a screening machine frame 1. The turning push frame 707 rotates and squeezes the T-shaped push frame 706 to move, so as to push the turning push plate 705 to rotate. It should be noted that in the embodiment of the present invention, when the transmission shaft 5 rotates, it drives the turning push frame 707 to rotate. The turning push frame 707 rotates and pushes the T-shaped push frame 706 to move, so that the T-shaped push frame 706 pushes the turning push plate 705 to rotate. The turning push plate 705 drives the turning shaft 704 to rotate on a return pull rod 703, and drives a return torsion spring 710 to be stressed. At the same time, the turning shaft 704 drives a transfer box 701 to rotate so that the raw materials are turned and dropped, completing the discharging.

[0031] More specifically, in the embodiment of the present invention, an installation groove 709 is formed on the return pull rod 703, and the turning shaft 704 is installed in the installation groove 709; a return torsion spring 710 is installed on the inner wall of the installation groove 709, and the other end of the return torsion spring 710 is installed on the turning shaft 704. It should be noted that in the embodiment of the present invention, when the turning push plate 705 rotates, it drives the transfer box 701 to rotate through the turning shaft 704. At the same time, the turning shaft 704 rotates in the installation groove 709 and drives the return torsion spring 710 to be stressed. Therefore, under the resilience of the return torsion spring 710, the transfer box 701 can be driven by the turning shaft 704 to reset.

[0032] Please continue to refer to the attached instructions Figures 2-4 Furthermore, in the embodiment of the present invention, a return spring 708 is installed on the top side of the return pull rod 703, and the top end of the return spring 708 is installed on the inner wall of the installation frame 702. It should be noted that in the embodiment of the present invention, when the transfer box 701 is in use, the two return pull rods 703 are pulled by the two return springs 708 to keep the position of the transfer box 701.

[0033] Further, please refer to the attached instructions Figure 2 and Figures 5-9 In addition, for an impurity screening device for the production of organic source soil conditioner provided by the embodiment of the present invention, the leakage compensation device 8 further includes a plurality of drive shafts 804. The plurality of drive shafts 804 are respectively rotatably installed on a plurality of installation rings 801, and a plurality of expansion rings 802 are respectively movably installed on the plurality of drive shafts 804; In addition, an arc-shaped driving groove 805 is formed in the driving shaft 804, a driving block 806 is installed on the inner wall of the unfolding ring 802, and the driving block 806 extends into the driving groove 805. It should be noted that in the embodiment of the present invention, when driving the driving column 810 to rotate, the driving column 810 rotates to drive the driving shaft 804 to rotate, and the driving shaft 804 rotates to drive the driving block 806 to move through the driving groove 805, so that the driving block 806 drives the unfolding ring 802 to move, achieving the purpose of driving the folding screen 803 to unfold through the unfolding ring 802.

[0034] More specifically, in the embodiment of the present invention, one end of the driving shaft 804 is installed with a driving column 810, and the driving column 810 is rotatably installed on an adjacent mounting ring 801; a mounting cavity 807 is formed in the mounting ring 801, a transverse movement sliding shaft 809 is arranged in the mounting cavity 807, a driving groove 811 is formed in the driving column 810, and one end of the transverse movement sliding shaft 809 extends into the driving groove 811. It should be noted that in the embodiment of the present invention, when the transverse movement sliding shaft 809 moves, it moves in the driving groove 811, thereby driving the driving column 810 to rotate.

[0035] Please continue to refer to the attached drawings of the specification Figure 2 and Figures 5-9 Furthermore, more specifically, in the embodiment of the present invention, a transverse movement sliding frame 808 is movably installed on one side of the screening rack 1, and a plurality of transverse movement sliding shafts 809 are all installed in the transverse movement sliding frame 808; in addition, a locking frame 812 is arranged on the bottom side of the transverse movement sliding frame 808, the locking frame 812 is installed on a return pull rod 703, a locking block 813 is installed on the locking frame 812, and the locking block 813 is inserted into the locking frame 812. It should be noted that in the embodiment of the present invention, when the gravity in the transfer box 701 increases unexpectedly, the two return pull rods 703 are driven to move, so that the return pull rod 703 drives the locking block 813 to disengage from the transverse movement sliding frame 808 through the locking frame 812, achieving the purpose of automatic unlocking.

[0036] Further, please refer to the attached drawings of the specification Figures 10-11 In the embodiment of the present invention, a kind of impurity screening device for the production of organic source soil conditioner, lifting grooves 903 are formed on both sides of the motor support 901, and the support plate 902 is movably installed in the two lifting grooves 903; in addition, a separating spring 904 is installed on the bottom inner wall of the lifting groove 903, and the top end of the separating spring 904 is installed on the bottom side of the support plate 902. It should be noted that in the embodiment of the present invention, after the support plate 902 is unlocked, under the pulling force of the two separating springs 904, the support plate 902 is pulled downwards, achieving the purpose of separating the motor 4 from the transmission shaft 5.

[0037] Further specifically, in the embodiment of the present invention, two push-pull chutes 905 are formed on the motor bracket 901, and a push-pull frame 906 is movably installed in the push-pull chute 905. The push-pull frame 906 is installed on the transverse movement carriage 808. In addition, two insertion slots 907 are formed on the support plate 902, and the two push-pull frames 906 are respectively inserted into the two insertion slots 907. It should be noted that in the embodiment of the present invention, when the transverse movement carriage 808 moves, the two push-pull frames 906 are driven to move in the two push-pull chutes 905, so that the push-pull frame 906 is disengaged from the insertion slot 907, and thus the support plate 902 is unlocked.

[0038] Please continue to refer to the accompanying drawings of the specification Figures 10-11 Furthermore specifically, a contraction spring 908 is installed on the inner wall of the push-pull chute 905, and the other end of the contraction spring 908 is installed on the push-pull frame 906. It should be noted that in the embodiment of the present invention, after the transverse movement carriage 808 is unlocked, under the pulling force of the separation spring 904, the push-pull frame 906 is driven to reset, so that the push-pull frame 906 can automatically disengage from the support plate 902.

[0039] In summary, the working principle of a kind of impurity screening device for the production of organic source soil conditioner provided by the embodiment of the present invention is as follows: When screening the raw materials, the motor 4 drives a driving gear 6 to rotate, and then drives the transmission shaft 5 to rotate through another driving gear 6. The transmission shaft 5 drives a plurality of sieve meshes 3 to rotate through the drum 2 to screen the raw materials, so that the screened raw materials are output through the sieve material outlet tube 10, and the screened raw materials are output through the raw material outlet tube 11. The screened raw materials fall on the transfer box 701. At the same time, the transmission shaft 5 rotates to drive the rotating push frame 707 to rotate. The rotating push frame 707 rotates to push the T-shaped push frame 706 to move, so that the T-shaped push frame 706 pushes the flipping push plate 705 to rotate. The flipping push plate 705 drives the rotating shaft 704 to rotate on the return pull rod 703, and drives the reset torsion spring 710 to be stressed. At the same time, the rotating shaft 704 drives the transfer box 701 to rotate so that the raw materials are flipped and fall, completing the discharging. It should be noted that if the screen is damaged, the damage will be aggravated by the rotation of the drum 2 and the impact of the raw materials. At this time, a large amount of unscreened raw materials will be quickly thrown out and enter the transfer box 701 through the screening material outlet cylinder 10. At this time, the weight in the transfer box 701 increases rapidly, thereby driving the two pull-back rods 703 to move downward. When the pull-back rods 703 move downward, the pull-back springs 708 are stretched, and the locking frame 812 is driven to move. The locking frame 812 drives the locking block 813 to disengage from the transverse slide 808. At this time, under the contraction force of the two contraction springs 908, the two push-pull frames 906 are pulled to move, so that the two push-pull frames 906 drive the transverse slide 808 to move. The movement of the transverse slide 808 simultaneously drives multiple transverse slide shafts 809 to move, and the transverse slide shafts 809 move in the driving grooves 811. Then, the driving column 810 is driven to rotate, and the driving column 810 drives the driving shaft 804 to rotate. The driving shaft 804 rotates through the driving groove 805 to drive the driving block 806 to move, so that the driving block 806 drives the unfolding ring 802 to move, and the unfolding ring 802 moves to pull the folding screen 803 to unfold and cover the screen 3, which can not only achieve temporary screening, but also effectively prevent a large amount of unscreened raw materials from mixing into the screened raw materials, causing the need for rework; in addition, when the screen 3 is damaged, the leaked unscreened raw materials can be effectively received by the transfer box 701, and when the transfer box 701 moves down, the flip push plate 705 is separated from the T-shaped push frame 706. At this time, the transfer box 701 is no longer flipped, which can effectively prevent the unscreened raw materials from mixing into the screened raw materials; It should be further explained that when the two push-pull frames 906 move, they separate from the support plate 902. At this time, under the contraction force of the two separation springs 904, the support plate 902 is pulled downward, and the downward movement of the support plate 902 drives the motor 4 to move downward, so that the two driving gears 6 are urgently disengaged to avoid continuous rotation and the problem of leakage of a large amount of unscreened raw materials.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An impurity screening device for the production of organic source soil conditioner, characterized in that, It includes a screening rack and a drum. A motor and a transmission shaft are installed on the screening rack. The drum is installed on the transmission shaft. Driving gears are installed on both the motor and the transmission shaft, and the two driving gears are meshed with each other. A plurality of screening meshes are installed on the drum. A screening material discharge cylinder and a raw material discharge cylinder are installed on the bottom side of the screening rack; It further includes an automatic discharging device which is installed on the bottom side of the screening rack and is used for turning over and discharging the screened raw materials. The automatic discharging device includes a transfer box. An installation frame is installed on the bottom side of the screening material discharge cylinder. Two return pull rods are movably installed on the bottom side of the installation frame. The transfer box is rotatably installed between the two return pull rods; A leakage compensation device is installed on the drum and is used for socketting and compensating the plurality of screening meshes. The leakage compensation device includes a plurality of installation rings which are all installed on the drum. An unfolding ring is provided on one side of the installation ring. A folding screening mesh is connected between the installation ring and the unfolding ring. The unfolding ring drives the folding screening mesh to be socketed on the screening mesh; It further includes an emergency disconnection device which is installed on the screening rack and is used for separating the motor from the transmission shaft; The emergency disconnection device includes a motor bracket which is installed on one side of the screening rack. A support plate is movably installed on the motor bracket. The motor is installed on the support plate. The downward movement of the support plate drives the motor to be separated from the transmission shaft.

2. The impurity screening device for the production of organic source soil conditioner according to claim 1, wherein The automatic discharging device further includes two turning shafts which are respectively installed on both sides of the transfer box. The two turning shafts are respectively rotatably installed in the two return pull rods; A turning push plate is socketed on one of the turning shafts. A rotating push frame is installed at the end of the transmission shaft. And a T-shaped push frame is slidably installed on one side of the screening rack. The rotating push frame rotates and squeezes the T-shaped push frame to move, so as to drive the turning push plate to rotate.

3. The impurity screening device for the production of organic source soil conditioner according to claim 2, characterized in that, Installation grooves are formed on the return pull rods, and the turning shafts are installed in the installation grooves; A reset torsion spring is installed on the inner wall of the installation groove, and the other end of the reset torsion spring is installed on the turning shaft.

4. The impurity screening device for the production of organic source soil conditioner according to claim 3, characterized in that, A return spring is installed on the top side of the return pull rod, and the top end of the return spring is installed on the inner wall of the installation frame.

5. A kind of impurity screening device for the production of organic source soil conditioner according to claim 1, characterized in that, The leakage compensation device further includes a plurality of drive shafts which are respectively rotatably installed on the plurality of installation rings. And the plurality of unfolding rings are respectively movably installed on the plurality of drive shafts; An arc-shaped drive groove is formed on the drive shaft, and a drive block is installed on the inner wall of the unfolding ring. The drive block extends into the drive groove.

6. A device for screening impurities in the production of an organic source soil conditioner according to claim 5, characterized in that, One end of the drive shaft is installed with a driving column, and the driving column is rotatably installed on an adjacent installation ring; An installation cavity is formed on the installation ring. A transverse moving sliding shaft is arranged in the installation cavity. A driving groove is formed on the driving column, and one end of the transverse moving sliding shaft extends into the driving groove.

7. A kind of impurity screening device for the production of organic source soil conditioner according to claim 6, characterized in that, A transverse moving sliding frame is movably installed on one side of the screening rack, and the plurality of transverse moving sliding shafts are all installed in the transverse moving sliding frame; A locking frame is provided on the bottom side of the transverse sliding carriage. The locking frame is mounted on one of the return pull rods, and a locking block is mounted on the locking frame. The locking block is inserted into the locking frame.

8. The impurity screening device for the production of an organic source soil conditioner according to claim 7, characterized in that, Lifting grooves are formed on both sides of the motor support. The support plate is movably mounted in the two lifting grooves; A separating spring is mounted on the inner wall of the bottom side of the lifting groove, and the top end of the separating spring is mounted on the bottom side of the support plate.

9. The impurity screening device for the production of an organic source soil conditioner according to claim 8, wherein, Two push-pull sliding grooves are formed on the motor support. A push-pull frame is movably mounted in the push-pull sliding grooves, and the push-pull frame is mounted on the transverse sliding carriage; Two insertion grooves are formed on the support plate, and the two push-pull frames are respectively inserted into the two insertion grooves.

10. The impurity screening device for the production of an organic source soil conditioner according to claim 9, wherein, A contraction spring is mounted on the inner wall of the push-pull sliding groove, and the other end of the contraction spring is mounted on the push-pull frame.

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