Urea mixing equipment with plug-in feeding function and using method

Abstract

The invention relates to the technical field of urea mixing equipment for vehicles, in particular to urea mixing equipment for plug-in feeding and a use method. Comprising a mixing equipment body and a vacuum feeding machine body, and further comprises a placing frame, inclined plates, elastic clamping rods, a fixing ring, a swing rod I and the like, the inclined plates are symmetrically connected to the inner bottom face of the placing frame, the placing frame is provided with at least two elastic clamping rods, notches are circumferentially formed in the lower end of a material suction pipe of the vacuum feeding machine body at intervals, and the fixing ring is connected to the lower end of the material suction pipe. The swing rods I are rotationally connected to the fixing ring at intervals in the circumferential direction. The canvas can be unfolded to be conical in the woven bag so as to guide all the adblue in the woven bag to the lower end of the material suction pipe, the residual adblue at the bottom corner of the woven bag can be vibrated to slide to the lower end of the material suction pipe through the vibration mechanism, it is guaranteed that the adblue in the woven bag can be fed by the material suction pipe at a time, time and labor are saved, and the working efficiency is improved. Operation is simple, and working efficiency can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle urea mixing equipment, and in particular to a plug-in feeding urea mixing equipment and a use method thereof. Background Art

[0002] Automotive urea is a 32.5% urea aqueous solution. Its chemical name is diesel exhaust treatment fluid. It is mainly used in diesel engines equipped with selective catalytic reduction systems to reduce nitrogen oxide emissions in diesel vehicle exhaust, thereby meeting more stringent environmental standards.

[0003] In the production process of automotive urea, mixing equipment is usually required to evenly mix high-purity urea and ultrapure water in a precise proportion. At present, it is usually done manually by placing the suction tube of a vacuum feeder into a container containing automotive urea, and then the automotive urea is transported to the mixing equipment through the vacuum feeder to be mixed with ultrapure water. However, the existing automotive urea is usually packaged in woven bags. Since the suction pipe of the vacuum feeder will be sucked on the inner wall of the woven bag when it is close to the inner wall of the woven bag, causing the suction pipe to be blocked, the suction pipe cannot directly suck and feed the automotive urea in the woven bag. It is usually necessary to manually pour the automotive urea in the woven bag into a hard container for the suction pipe to suck, which is troublesome to operate and has low work efficiency. In addition, when the existing vacuum feeder is in use, the position of its suction pipe is relatively fixed. The suction pipe can only suck and feed the automotive urea in the area close to its end, while the automotive urea in the area far from the end of the suction pipe cannot be fed, and the feeding effect is poor. It is usually necessary to manually control the suction pipe to move in the container containing automotive urea, which is troublesome to operate and has low work efficiency. Summary of the invention

[0004] In view of this, the present invention provides a plug-in feeding urea mixing device and a use method, which can overcome the shortcomings of the existing mixing equipment that is more complicated to operate and has lower working efficiency when sucking and feeding automotive urea through a vacuum feeder.

[0005] The technical solution of the present invention is: a urea mixing device with plug-in feeding, including a mixing device body and a vacuum feeder body, and also including a placement rack, an inclined plate, an elastic clamping rod, a fixed ring, a swing rod I, a rotating shaft, a volute spring, a canvas, an unfolding component, a pulling component and a vibration component. The inclined plate is symmetrically connected to the inner bottom surface of the placement rack, and at least two elastic clamping rods are provided on the placement rack. The lower end of the suction pipe of the vacuum feeder body is circumferentially spaced with notches, the fixed ring is connected to the lower end of the suction pipe, the swing rod I is circumferentially spaced and rotatably connected to the fixed ring, the rotating shaft is rotatably connected to the swing rod I, the volute spring connects the swing rod I and the rotating shaft, the canvas is wound on the rotating shaft, the unfolding component is used to drive the swing rod I to rotate and unfold in a direction away from the suction pipe, the pulling component is used to pull the canvas to unfold, and the vibration component is used to drive the placement rack to vibrate.

[0006] In addition, it is particularly preferred that the unfolding assembly includes a screw barrel, a screw sleeve, a connecting rod I, a fixed frame, a slider, a drive motor, a handle, a driving gear and a tooth block, the screw barrel is rotatably connected to the outside of the suction pipe, the screw sleeve is threadedly connected to the screw barrel, the connecting rod I is rotatably connected to the screw sleeve at circumferential intervals, and the lower end of the connecting rod I is rotatably connected to the upper end of the swing rod I, the fixed frame is connected to the suction pipe, the fixed frame is symmetrically provided with arc holes, the slider is connected to the fixed frame, the drive motor is connected to the slider, the handle is connected to the side of the drive motor, the driving gear is connected to the output shaft of the drive motor, the tooth block is evenly spaced and connected to the upper end of the screw barrel, and the driving gear is meshed with the tooth block.

[0007] In addition, it is particularly preferred that the pulling assembly includes a rotating ring, a swing rod II, a rotating sleeve, a connecting rod II, a driven gear ring and a connecting rod, the rotating ring is rotatably connected to the lower end of the suction pipe, the swing rod II is rotatably connected to the rotating ring at circumferential intervals, and the swing rod II is connected to the end of the canvas, the rotating sleeve is rotatably connected to the bottom surface of the screw sleeve, the connecting rod II is rotatably connected to the rotating sleeve at circumferential intervals, and the lower end of the connecting rod II is rotatably connected to the upper end of the swing rod II, the driven gear ring is rotatably connected to the suction pipe, the connecting rod is symmetrically connected to the driven gear ring, and the rotating ring and the rotating sleeve are both fixedly connected to the connecting rod, and the connecting rod is located in the arc hole.

[0008] In addition, it is particularly preferred that the vibration assembly includes a fixed plate, a support spring and a vibration motor, the fixed plate is connected to the side of the mixing equipment body, the two ends of the support spring are respectively connected to the top surface of the fixed plate and the bottom surface of the placement frame, and the vibration motor is installed on the bottom surface of the placement frame.

[0009] In addition, it is particularly preferred that a limiting assembly is also included, which includes a guide rod, a slide plate, a return spring and a clamping rod, the guide rod is symmetrically connected to both sides of the fixed frame, the slide plate is slidably connected to the guide rod, the return spring connects the fixed frame and the slide plate, the clamping rod is connected to the slide plate, and the clamping rod is clamped on the side of the slider.

[0010] In addition, it is particularly preferred that it also includes a sliding insert, a clamping spring, a clamping bead and a connecting spring, the inner wall of the suction tube is symmetrically provided with sliding grooves, a clamping groove is provided in the sliding groove, the sliding insert is slidably connected to the lower end of the suction tube, the clamping spring connects the sliding insert and the suction tube, the clamping bead is symmetrically slidably connected to the sliding insert, and the end of the clamping bead is clamped in the clamping groove, and the connecting spring connects the clamping bead and the sliding insert.

[0011] In addition, it is particularly preferred that it also includes elastic cloth I, elastic cloth II and elastic cloth III, elastic cloth I connects the sliding insert and the suction tube, elastic cloth II connects the fixing frame and the screw sleeve, elastic cloth III connects the rotating ring and the rotating sleeve, and the screw barrel is located on the inner side of the elastic cloth II and the inner side of the elastic cloth III.

[0012] The present invention also provides a method for using an insert-type feeding urea mixing device, comprising the following steps: firstly, placing a woven bag filled with automotive urea into a placement rack so that the two bottom corners of the woven bag are respectively located on the top surfaces of two inclined plates; then, opening the bag opening of the woven bag, fixing the bag opening of the woven bag to the upper end of the placement rack by an elastic clamping rod, and then inserting a suction pipe of a vacuum feeder body into the woven bag until the bottom surface of the suction pipe of the vacuum feeder body contacts the inner bottom surface of the woven bag; then, driving a driving motor to drive a driving gear to rotate, thereby driving a swinging rod I and a swinging rod II to synchronously move away from the suction pipe. The canvas can be unfolded in a fan shape by rotating the canvas in the right direction and then pulling the handle upwards to separate the driving gear from the gear block until the driving gear meshes with the driven gear ring. The driving gear can drive the driven gear ring to rotate, thereby driving the swing rod II to rotate around the axis of the suction pipe. The swing rod II can pull out the end of the canvas to unfold it in a fan shape. The vibration motor drives the placement rack to shake left and right, so that the automotive urea in the woven bag can be concentrated and slide to the lower end of the suction pipe. The suction pipe is controlled by the vacuum feeder body to absorb the automotive urea in the woven bag, and the automotive urea can be transported to the mixing equipment body to be mixed with ultrapure water.

[0013] Compared with the prior art, the present invention has the following advantages: 1. The canvas of the present invention can be unfolded in a cone shape in the woven bag to guide all the automotive urea in the woven bag to the lower end of the suction pipe, and the automotive urea remaining at the bottom corner of the woven bag can be vibrated to slide toward the lower end of the suction pipe through the vibration mechanism, ensuring that the suction pipe can complete the loading of the automotive urea in the woven bag at one time, saving time and labor, simple operation, and improving work efficiency.

[0014] 2. The lower end of the sliding insert tube of the present invention is set as a pointed tip, which can assist the suction tube to be easily inserted into the bottom of the woven bag, and the sliding insert tube can be automatically extended and retracted, so as not to affect the suction tube to absorb the automotive urea in the woven bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0016] Figure 2 The figure is a schematic diagram of the installation of the fixing ring, the swing rod I, the rotating shaft and the canvas of the present invention.

[0017] Figure 3 For the present invention Figure 2 A magnified view of part A.

[0018] Figure 4 It is a schematic diagram of the installation of the unfolded components of the present invention.

[0019] Figure 5 It is a schematic diagram of the specific structure of the fixing frame of the present invention.

[0020] Figure 6 It is a schematic diagram of the installation of the pulling assembly of the present invention.

[0021] Figure 7 It is a working schematic diagram of the pulling assembly of the present invention.

[0022] Figure 8 It is a schematic diagram of the specific structure of the vibration component of the present invention.

[0023] Fig. 9 It is a schematic diagram of the installation of the limiting assembly of the present invention.

[0024] Fig.10 It is a cross-sectional view of the suction tube and the sliding insertion tube of the present invention.

[0025] Fig.11 It is a schematic diagram of the installation of the elastic fabric II and the elastic fabric III of the present invention.

[0026] Names of the numbers in the figure: 1-mixing equipment body, 2-vacuum feeder body, 201-suction pipe, 3-placing frame, 4-inclined plate, 5-elastic clamping rod, 6-notch, 7-fixing ring, 8-swing rod I, 9-rotating shaft, 10-volute spring, 11-canvas, 12-screw barrel, 13-screw sleeve, 14-connecting rod I, 15-fixed frame, 1501-arc hole, 16-slider, 17-driving motor, 1701-handle, 18-driving gear, 19-tooth block , 20-rotating ring, 21-swing rod II, 22-rotating sleeve, 23-connecting rod II, 24-driven gear ring, 25-connecting rod, 26-fixed plate, 27-support spring, 28-vibration motor, 29-guide rod, 30-slide plate, 31-reset spring, 32-clamping rod, 33-slide groove, 34-clamping groove, 35-sliding insert, 36-compression spring, 37-clamping bead, 38-connecting spring, 39-elastic cloth I, 40-elastic cloth II, 41-elastic cloth III. DETAILED DESCRIPTION

[0027] Although the present invention may be described with respect to a particular application or industry, those skilled in the art will recognize the broader applicability of the present invention. Those of ordinary skill in the art will recognize that terms such as above, below, upward, downward, etc. are used to describe the drawings and do not represent limitations on the scope of the present invention as defined by the appended claims. Any numerical designations such as first or second are merely exemplary and are not intended to limit the scope of the present invention in any way.

[0028] Embodiment: A plug-in feeding urea mixing device and a method of use, such as Figure 1-Figure 8 As shown, it includes a mixing device body 1 and a vacuum feeder body 2, the vacuum feeder body 2 is installed on the upper part of the mixing device body 1, and also includes a placement frame 3, an inclined plate 4, an elastic clamping rod 5, a fixing ring 7, a swing rod Ⅰ8, a rotating shaft 9, a volute spring 10, a canvas 11, an unfolding component, a pulling component and a vibration component. The placement frame 3 is arranged at the lower left part of the mixing device body 1, and the bottom surface of the placement frame 3 is symmetrically connected with the inclined plate 4, the top surface of the inclined plate 4 is an inclined surface, and three elastic clamping rods 5 are arranged on the upper part of the placement frame 3. The lower end of the suction pipe 201 of the vacuum feeder body 2 is circumferentially spaced with a plurality of notches 6, and the fixed The fixed ring 7 is connected to the lower end of the suction pipe 201, and four swing rods Ⅰ8 are rotatably connected to the fixed ring 7 at intervals in the circumferential direction. The swing rod Ⅰ8 is in the shape of a triangular prism. The swing rod Ⅰ8 is rotatably connected to the swing rod Ⅰ8. The diameter of the rotating shaft 9 gradually decreases from top to bottom. A volute spring 10 is connected between the upper and lower ends of the rotating shaft 9 and the swing rod Ⅰ8. A canvas 11 is wound around the rotating shaft 9, and the canvas 11 is fan-shaped as a whole. The unfolding component is used to drive the swing rod Ⅰ8 to rotate and unfold in the direction away from the suction pipe 201, the pulling component is used to pull the canvas 11 to unfold, and the vibration component is used to drive the placement frame 3 to vibrate.

[0029] like Figure 4 and Figure 5 As shown, the unfolding assembly includes a screw barrel 12, a screw sleeve 13, a connecting rod Ⅰ14, a fixing frame 15, a slider 16, a driving motor 17, a handle 1701, a driving gear 18 and a gear block 19. The screw barrel 12 is rotatably connected to the lower outer portion of the suction pipe 201, and the screw sleeve 13 is threadedly connected to the screw barrel 12. Four connecting rods Ⅰ14 are rotatably connected to the screw sleeve 13 at intervals in the circumferential direction. The connecting rods Ⅰ14 correspond to the swing rods Ⅰ8 one by one, and the lower ends of the connecting rods Ⅰ14 are all rotated with the upper ends of the corresponding swing rods Ⅰ8. The fixing frame 15 is connected to the suction pipe 201, and arc holes 1501 are symmetrically opened on the fixing frame 15. The slider 16 is connected to the fixing frame 15, and grooves are opened on the front and back sides of the slider 16. The driving motor 17 is connected to the slider 16, and the handle 1701 is connected to the left side of the driving motor 17. The driving gear 18 is connected to the output shaft of the driving motor 17. A plurality of tooth blocks 19 are evenly connected to the upper end of the screw barrel 12 at circumferential intervals, and the driving gear 18 is meshed with the tooth block 19.

[0030] like Figure 6 and Figure 7 As shown, the pulling assembly includes a rotating ring 20, a swing rod II 21, a rotating sleeve 22, a connecting rod II 23, a driven gear ring 24 and a connecting rod 25. The rotating ring 20 is rotatably connected to the lower end of the suction pipe 201, and the rotating ring 20 is located on the upper side of the fixed ring 7. Four swing rods II 21 are rotatably connected to the rotating ring 20 at intervals in the circumferential direction, and the swing rod II 21 is connected to the end of the canvas 11. The rotating sleeve 22 is rotatably connected to the bottom surface of the screw sleeve 13. The rotating sleeve 22 is rotatably connected to four connecting rods II 23 at intervals in the circumferential direction. The connecting rod II 2 3 corresponds to the swing rod II 21 one by one, and the lower ends of the connecting rods II 23 are rotatably connected to the upper ends of the corresponding swing rods II 21, the driven gear ring 24 is rotatably connected to the suction pipe 201, the driven gear ring 24 is located on the upper side of the screw barrel 12, and the connecting rods 25 are symmetrically connected to the driven gear ring 24 front and back. The number of the connecting rods 25 is two, and the rotating ring 20 and the rotating sleeve 22 are fixedly connected to the connecting rods 25, the connecting rods 25 are slidably penetrate the screw sleeve 13, and the two connecting rods 25 are respectively located in the two arc holes 1501.

[0031] like Figure 1 and Figure 8 As shown, the vibration assembly includes a fixed plate 26, a support spring 27 and a vibration motor 28. The fixed plate 26 is connected to the lower left part of the mixing equipment body 1, and the two ends of the support spring 27 are respectively connected to the top surface of the fixed plate 26 and the bottom surface of the placement rack 3. The vibration motor 28 is installed on the bottom surface of the placement rack 3.

[0032] First, put the woven bag filled with automotive urea into the placement rack 3 so that the two bottom corners of the woven bag are respectively located on the top surfaces of the two inclined plates 4. Since the top surfaces of the inclined plates 4 are inclined, the two bottom corners of the woven bag can be tilted upwards. Then, open the bag mouth of the woven bag, and then fix the bag mouth of the woven bag to the upper end of the placement rack 3 through the elastic clamping rod 5. Then, insert the suction pipe 201 of the vacuum feeder body 2 into the woven bag until the bottom surface of the suction pipe 201 of the vacuum feeder body 2 contacts the inner bottom surface of the woven bag; then, drive the driving gear 18 to rotate through the driving motor 17, and the driving gear 18 can drive the gear block 19 and the screw barrel 12 to rotate. The screw barrel 12 can drive the screw sleeve 13 to move downward, and the screw sleeve 13 can drive the swing rod Ⅰ8 to rotate and unfold in the direction away from the suction pipe 201 through the connecting rod Ⅰ14. Since the swing rod Ⅰ8 is a triangular prism, and the edge of the swing rod Ⅰ8 is located on the side away from the suction pipe 201, the swing rod Ⅰ8 is blocked by the automotive urea in the woven bag. The force is small, so that the swing rod I8 can be easily unfolded in the woven bag, and at the same time, the screw sleeve 13 can drive the rotating sleeve 22 to move downward synchronously, and the rotating sleeve 22 can drive the swing rod II21 to rotate and unfold in the direction away from the suction pipe 201 through the connecting rod II23, so that the swing rod II21 can be synchronously unfolded in the woven bag with the swing rod I8; then the handle 1701 is manually pulled upward, and the handle 1701 can drive the slider 16, the driving motor 17 and the driving gear 18 to move upward, so that The driving gear 18 is separated from the tooth block 19 until the driving gear 18 is meshed with the driven gear ring 24. The driving gear 18 can drive the driven gear ring 24 to rotate. The driven gear ring 24 can drive the rotating ring 20 and the rotating sleeve 22 to rotate around the axis of the suction pipe 201 through the connecting rod 25. The rotating ring 20 can drive the swing rod II 21 to rotate around the axis of the suction pipe 201. The swing rod II 21 can pull out the end of the canvas 11 to unfold the canvas 11 into a fan shape (such as Figure 7As shown in the figure), when the canvas 11 is pulled out, it can drive the rotating shaft 9 to rotate, and the scroll spring 10 is deformed. At this time, the four canvases 11 can be synchronously unfolded into a cone shape on the lower side of the inside of the woven bag, and there will be a material unloading space between the lower end of the canvas 11 and the outer wall of the rotating ring 20; then the vacuum feeder body 2 is used to control the suction pipe 201 to absorb the automotive urea in the woven bag, and the automotive urea located on the lower side of the canvas 11 can enter the suction pipe 201 through the notch 6, and can finally be transported to the mixing equipment body 1 to be mixed with ultrapure water, while the automotive urea located on the upper side of the canvas 11 can slide down along the surface of the canvas 11 and pass through the canvas The material discharge space between the lower end of the cloth 11 and the outer wall of the rotating ring 20 falls to the lower end of the suction pipe 201, and finally enters the suction pipe 201 through the gap 6, and is transported to the mixing equipment body 1 to be mixed with ultrapure water; at this time, some automotive urea may remain on the bottom surface of the woven bag (especially at the two bottom corners of the woven bag), and the placement rack 3 is driven by the vibration motor 28 to slightly shake left and right, and the buffering and resetting effect of the support spring 27 can make the automotive urea remaining at the bottom corner of the woven bag slide along the inclined surface of the inclined plate 4 to the lower end of the suction pipe 201, and finally be transported to the mixing equipment body 1 to be mixed with ultrapure water.

[0033] like Fig. 9 As shown, it also includes a limit assembly, which includes a guide rod 29, a slide plate 30, a return spring 31 and a clamping rod 32. Four guide rods 29 are connected to the front and rear sides of the fixed frame 15. The four guide rods 29 are distributed in a rectangular shape. A slide plate 30 is slidably connected between two guide rods 29 that are symmetrical up and down. The number of the slide plates 30 is four. The return spring 31 is wound around the outside of the guide rod 29, and the two ends of the return spring 31 are respectively connected to the fixed frame 15 and the slide plate 30. A clamping rod 32 is symmetrically connected between the two slide plates 30 on the front side, and a clamping rod 32 is also symmetrically connected between the two slide plates 30 on the rear side, and the clamping rod 32 is clamped in the groove of the slider 16.

[0034] Initially, the lower clamping rod 32 is stuck in the groove of the slider 16, which can limit the slider 16 and prevent the active gear 18 from being separated from the tooth block 19; when the handle 1701 is manually pulled upward, the handle 1701 can drive the slider 16 to move upward. At this time, the slider 16 will squeeze the clamping rod 32 and the slide plate 30 to move away from each other, and the return spring 31 is compressed to separate the lower clamping rod 32 from the groove of the slider 16. When the active gear 18 moves upward to engage with the driven gear ring 24, the upper clamping rod 32 is just aligned with the groove of the slider 16. At this time, the return spring 31 will return to its original state, driving the clamping rod 32 and the slide plate 30 to move toward each other and reset, so that the upper clamping rod 32 is stuck in the groove of the slider 16, which can limit the slider 16 and prevent the active gear 18 from being separated from the driven gear ring 24.

[0035] like Fig.10As shown, it also includes a sliding insert 35, a clamping spring 36, a bead 37 and a connecting spring 38. The front, back, left and right sides of the lower inner wall of the suction tube 201 are all provided with sliding grooves 33, and the lower part of the sliding grooves 33 is provided with clamping grooves 34. The sliding insert 35 is slidably connected to the lower end of the suction tube 201. The two ends of the clamping spring 36 are respectively connected to the top surface of the sliding insert 35 and the inner wall of the suction tube 201. The front, back, left and right sides of the upper part of the sliding insert 35 are all slidably connected with a clamping bead 37, and the end of the clamping bead 37 is clamped in the clamping groove 34. The two ends of the connecting spring 38 are respectively connected to the clamping bead 37 and the sliding insert 35.

[0036] Initially, the lower end of the sliding insert 35 passes through the lower end of the suction pipe 201, and the end of the card bead 37 is stuck in the card slot 34 to limit the sliding insert 35; because the lower end of the sliding insert 35 is set as a pointed end, the lower end of the sliding insert 35 is less resisted by the automotive urea in the woven bag, and can be inserted into the woven bag more easily, thereby driving the lower end of the suction pipe 201 to be inserted into the woven bag more easily; when the sliding insert 35 contacts the bottom of the woven bag, the sliding insert 35 stops moving downward, and the suction pipe 201 can continue to move downward and be inserted, so that the sliding insert 35 retracts into the suction pipe 201, the compression spring 36 is compressed, and the card slot 34 squeezes the card bead 37 in the direction close to the suction pipe 201. The connecting spring 38 is compressed, and the end of the card bead 37 can move upward along the slide groove 33, so as to limit the sliding plug tube 35 and prevent the sliding plug tube 35 from rotating at will. When the sliding plug tube 35 is fully retracted into the suction tube 201, the suction work of the suction tube 201 is not affected. When the suction tube 201 is taken out of the woven bag, the compression spring 36 will return to its original state, driving the sliding plug tube 35 to move downward and pop out, which is convenient for the use of the lower side, and the sliding plug tube 35 can drive the card bead 37 to move downward until it is aligned with the card groove 34. At this time, the connecting spring 38 will return to its original state, driving the card bead 37 to move away from the suction tube 201, so that the end of the card bead 37 is re-stuck in the card groove 34.

[0037] like Fig.10 and Fig.11 As shown, it also includes elastic cloth I39, elastic cloth II40 and elastic cloth III41. The elastic cloth I39, elastic cloth II40 and elastic cloth III41 are all cylindrical, and the upper and lower ends of the elastic cloth I39 are respectively connected to the sliding insert 35 and the suction tube 201, the upper and lower ends of the elastic cloth II40 are respectively connected to the fixing frame 15 and the screw sleeve 13, the upper and lower ends of the elastic cloth III41 are respectively connected to the rotating ring 20 and the rotating sleeve 22, and the screw barrel 12 is located on the inner side of the elastic cloth II40 and the inner side of the elastic cloth III41.

[0038] The elastic cloth I39 can be extended and retracted as the sliding insert 35 moves up and down, so as to always block the gap between the outer wall of the sliding insert 35 and the inner wall of the suction tube 201. When the sliding insert 35 is inserted into the woven bag, part of the automotive urea in the woven bag will flow into the suction tube 201. The elastic cloth I39 can prevent the automotive urea from entering the gap between the outer wall of the sliding insert 35 and the inner wall of the suction tube 201, thereby ensuring that the sliding insert 35 can move up and down normally. Similarly, when the suction tube 201 is inserted into the woven bag, the elastic cloth II40 and the elastic cloth III41 can prevent the automotive urea from getting stuck on the external thread of the screw barrel 12, thereby ensuring that the screw sleeve 13 can move up and down normally.

[0039] Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation shall fall within the protection scope of the present invention.

Claims

1. A plug-in feeding urea mixing device, comprising a mixing device body (1) and a vacuum feeder body (2), characterized in that: The vacuum feeder body (2) further comprises a placing frame (3), an inclined plate (4), an elastic clamping rod (5), a fixing ring (7), a swinging rod I (8), a rotating shaft (9), a spiral spring (10), a canvas (11), an unfolding assembly, a pulling assembly and a vibrating assembly. The inclined plate (4) is symmetrically connected to the inner bottom surface of the placing frame (3). The placing frame (3) is provided with at least two elastic clamping rods (5). The lower end of the suction pipe (201) of the vacuum feeder body (2) is circumferentially spaced with notches (6). The fixing ring (7) is connected to the suction pipe. At the lower end of (201), the swing rod I (8) is rotatably connected to the fixed ring (7) at circumferential intervals, the rotating shaft (9) is rotatably connected to the swing rod I (8), the spiral spring (10) connects the swing rod I (8) and the rotating shaft (9), the canvas (11) is wound around the rotating shaft (9), the unfolding component is used to drive the swing rod I (8) to rotate and unfold in a direction away from the suction pipe (201), the pulling component is used to pull the canvas (11) to unfold, and the vibration component is used to drive the placement frame (3) to vibrate.

2. The urea mixing device with plug-in feeding according to claim 1, characterized in that: The unfolding assembly comprises a screw barrel (12), a screw sleeve (13), a connecting rod I (14), a fixing frame (15), a slider (16), a driving motor (17), a handle (1701), a driving gear (18) and a gear block (19), wherein the screw barrel (12) is rotatably connected to the outside of a suction pipe (201), the screw sleeve (13) is threadedly connected to the screw barrel (12), the connecting rod I (14) is rotatably connected to the screw sleeve (13) at intervals in the circumferential direction, and the lower end of the connecting rod I (14) is rotatably connected to the upper end of a swing rod I (8) The fixing frame (15) is connected to the suction pipe (201), the fixing frame (15) is symmetrically provided with arc holes (1501), the slider (16) is connected to the fixing frame (15), the driving motor (17) is connected to the slider (16), the handle (1701) is connected to the side of the driving motor (17), the driving gear (18) is connected to the output shaft of the driving motor (17), the gear block (19) is evenly spaced and connected to the upper end of the screw barrel (12), and the driving gear (18) is meshed with the gear block (19).

3. The urea mixing device with plug-in feeding according to claim 2, characterized in that: The pulling assembly comprises a rotating ring (20), a swing rod II (21), a rotating sleeve (22), a connecting rod II (23), a driven gear ring (24) and a connecting rod (25). The rotating ring (20) is rotatably connected to the lower end of the suction pipe (201), the swing rod II (21) is rotatably connected to the rotating ring (20) at intervals in the circumferential direction, and the swing rod II (21) is connected to the end of the canvas (11), and the rotating sleeve (22) is rotatably connected to the bottom surface of the screw sleeve (13). The connecting rod II (23) is rotatably connected to the rotating sleeve (22) at circumferential intervals, and the lower end of the connecting rod II (23) is rotatably connected to the upper end of the swing rod II (21), the driven ring gear (24) is rotatably connected to the suction pipe (201), the connecting rod (25) is symmetrically connected to the driven ring gear (24), and the rotating ring (20) and the rotating sleeve (22) are both fixedly connected to the connecting rod (25), and the connecting rod (25) is located in the arc hole (1501).

4. The urea mixing device with plug-in feeding according to claim 3, characterized in that: The vibration assembly comprises a fixing plate (26), a supporting spring (27) and a vibration motor (28); the fixing plate (26) is connected to the side of the mixing device body (1); two ends of the supporting spring (27) are respectively connected to the top surface of the fixing plate (26) and the bottom surface of the placement frame (3); and the vibration motor (28) is installed on the bottom surface of the placement frame (3).

5. The urea mixing device with plug-in feeding according to claim 4, characterized in that: The invention also comprises a limit position assembly, which comprises a guide rod (29), a slide plate (30), a return spring (31) and a clamping rod (32), wherein the guide rod (29) is symmetrically connected to both sides of the fixing frame (15), the slide plate (30) is slidably connected to the guide rod (29), the return spring (31) connects the fixing frame (15) and the slide plate (30), the clamping rod (32) is connected to the slide plate (30), and the clamping rod (32) is clamped on the side of the slider (16).

6. The urea mixing device with plug-in feeding according to claim 5, characterized in that: The invention also comprises a sliding insert (35), a clamping spring (36), a clamping bead (37) and a connecting spring (38); the inner wall of the suction pipe (201) is symmetrically provided with a sliding groove (33); a clamping groove (34) is provided in the sliding groove (33); the sliding insert (35) is slidably connected to the lower end of the suction pipe (201); the clamping spring (36) connects the sliding insert (35) and the suction pipe (201); the clamping bead (37) is symmetrically slidably connected to the sliding insert (35); the end of the clamping bead (37) is clamped in the clamping groove (34); and the connecting spring (38) connects the clamping bead (37) and the sliding insert (35).

7. The urea mixing device with plug-in feeding according to claim 6, characterized in that: The invention also comprises an elastic cloth I (39), an elastic cloth II (40) and an elastic cloth III (41), wherein the elastic cloth I (39) is connected to the sliding insert (35) and the suction pipe (201), the elastic cloth II (40) is connected to the fixing frame (15) and the screw sleeve (13), the elastic cloth III (41) is connected to the rotating ring (20) and the rotating sleeve (22), and the screw barrel (12) is located inside the elastic cloth II (40) and inside the elastic cloth III (41).

8. The method for using the plug-in feeding urea mixing device according to any one of claims 1 to 7, characterized in that: The following steps are involved: First, a woven bag containing automotive urea is placed in a placement rack (3) so that the two bottom corners of the woven bag are respectively located on the top surfaces of the two inclined plates (4); then, the bag mouth of the woven bag is opened, and the bag mouth of the woven bag is fixed to the upper end of the placement rack (3) by means of an elastic clamping rod (5); and then, a suction pipe (201) of a vacuum feeder body (2) is inserted into the woven bag until the bottom surface of the suction pipe (201) of the vacuum feeder body (2) contacts the bottom surface of the woven bag; then, the driving gear (18) is driven to rotate by a driving motor (17), so that the swing rod I (8) and the swing rod II (21) are synchronously rotated and unfolded in a direction away from the suction pipe (201); and then, the handle (1701) is pulled upward, so that the driving gear (18) 8) is separated from the gear block (19) until the driving gear (18) is meshed with the driven gear ring (24), the driving gear (18) can drive the driven gear ring (24) to rotate, driving the swing rod II (21) to rotate around the axis of the suction pipe (201), the swing rod II (21) can pull out the end of the canvas (11), so that the canvas (11) is unfolded in a fan shape; and the vibration motor (28) drives the placement rack (3) to shake left and right, so that the automotive urea in the woven bag can be concentrated and slide to the lower end of the suction pipe (201), and the suction pipe (201) can be controlled by the vacuum feeder body (2) to absorb the automotive urea in the woven bag, so that the automotive urea can be transported to the mixing equipment body (1) to be mixed with ultrapure water.

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