A dust prevention device for aggregate sorting device

Abstract

The present invention relates to the field of aggregate sorting technology, specifically to a dust prevention device for an aggregate sorting device, including a nozzle seat, a connecting pipe head is provided at the upper end of the nozzle seat, a rotating head is rotatably installed at the upper end of the connecting pipe head, a sealing rubber ring is provided at the connection between the lower end of the rotating head and the connecting pipe head, three groups of nozzles are provided in the internal annular array of the rotating head, and an atomizing head is provided at the opening of the nozzle. The present invention can achieve clamping and fixing of the device by setting a fixed column and a movable column, and in the thicker part that the sorting device cannot clamp, the movable column can be flipped to the upper side of the fixed column, and locked by the limit assembly, and the device can be adsorbed and fixed on the surface of the metal part of the device that can be magnetically attracted by a magnet sheet, which not only increases the possibility of installation of the device, but also enhances the applicability of the device, and reduces the irreversible installation loss such as drilling during installation.

Description

Technical Field

[0001] The invention relates to the technical field of aggregate sorting, in particular to dust prevention equipment for an aggregate sorting device. Background Art

[0002] With the rapid development of the construction industry, a large amount of waste concrete has been generated. How to recycle waste concrete and process it into high-quality recycled aggregate has become the focus of industry research. It can not only achieve comprehensive recycling of resources, but also solve environmental problems and achieve the unity of economic benefits and environmental benefits.

[0003] Due to the special properties of recycled aggregates, especially the changes in particle size, the components and properties of recycled aggregates vary greatly. Therefore, it is necessary to classify recycled coarse aggregates, recycled fine aggregates, and recycled micro powders to maximize their value. Studies have found that waste concrete and waste bricks and stones are the main components of construction waste, accounting for more than 80% (by mass) of construction waste. Therefore, recycled aggregates can be divided into three categories according to their sources: waste concrete aggregates, broken brick aggregates, and other aggregates (mainly lightweight recycled aggregates).

[0004] Aggregate sorting is usually achieved through the cooperation of a transportation system and a sorting system. The crushed aggregate is delivered to the sorting system through a conveyor pipe or a conveyor belt in the transportation system. Aggregates of different particle sizes are separated by sieves of different apertures in the sorting system to achieve the purpose of sorting. In this process, the crushed aggregate will generate dust due to the movement of the transportation system and the shaking and falling during sorting. Dust not only affects the environment, but also has certain hazards to the breathing of workers.

[0005] In the prior art, for the dust generated during aggregate sorting, fog cannons or sprinkler heads are basically used for water mist dust reduction, or dust suction is used for dust prevention. Among them, water mist dust reduction has the best effect and is therefore widely used. However, the use of existing fog cannons for dust reduction has limitations and occupies more site space. The sprinkler heads need to be drilled according to the equipment used and installed with bolts or clamps. The installation operation is either inconvenient or has certain limitations. Parts that do not have suitable locations for drilling or clamping cannot be properly installed and used. Summary of the invention

[0006] The object of the present invention is to provide a dust prevention device for an aggregate sorting device, so as to solve the problem that the existing sprinkler head for preventing dust in aggregate sorting has certain limitations in installation and use as mentioned in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a dust prevention device for an aggregate sorting device, comprising a nozzle seat, a connecting pipe head is arranged at the upper end of the nozzle seat, a rotating head is rotatably mounted at the upper end of the connecting pipe head, a sealing rubber ring is arranged at the connection between the lower end of the rotating head and the connecting pipe head, three groups of nozzles are arranged in an internal annular array of the rotating head, an atomizing head is arranged at the opening of the nozzle, a protective cover is arranged at the upper end of the rotating head through a telescopic component, and an outer groove is arranged on the side of the connecting pipe head;

[0008] A slot block is rotatably arranged in the outer groove, a frame is arranged on the inner wall of the slot block, a filter screen is arranged on the inner side of the frame, a first sealing gasket is glued to the outer wall of one end of the frame close to the slot block, a second sealing gasket is glued to the surface of one side of the slot block close to the connecting pipe head, a mesh slot matching the frame is opened inside the connecting pipe head, and a locking assembly is arranged on the outer side of the connecting pipe head;

[0009] The lower end of the nozzle seat body is connected to the fixed seat through an adjusting component, a fixed column is arranged at the lower end of the fixed seat, two groups of movable columns are symmetrically mounted on the side of the fixed seat for rotation, magnet sheets are arranged on the planes of the fixed column and the movable column, a limiting component for connecting with the fixed seat is arranged at the upper end of the movable column, anti-slip rubber pads are glued to the arc ends of the fixed column and the movable column, and a clamping component for clamping is arranged between the fixed column and the movable column.

[0010] Preferably, the telescopic assembly includes four groups of guide grooves in a circular array opened on the inner wall of the protective cover, a guide block is slidably arranged in the guide groove, the guide block is fixedly connected to the upper outer wall of the rotating head, and a first spring is longitudinally arranged in the guide groove, and the upper and lower ends of the first spring are respectively against the upper inner wall of the guide groove and the upper end of the guide block.

[0011] Preferably, an internal thread ring block is rotatably provided at the lower end of the protective cover, and an external thread matching the internal thread ring block is provided on the outer wall of the rotating head, and the external thread is located at the lower side of the nozzle.

[0012] Preferably, two groups of limiting grooves are symmetrically opened on the upper side of the inner wall of the groove block, and a column block is slidably arranged in the limiting groove. The end of the column block placed in the limiting groove is cylindrical, and the outer end of the column block is fixedly connected to the frame. The outer diameter of the first sealing gasket is matched with the inner diameter of the opening of the mesh groove, and the longitudinal section of the first sealing gasket is triangular. The second sealing gasket surrounds the outer sides of the two groups of limiting grooves, and the inner wall of the outer groove is provided with a sealing groove matched with the second sealing gasket.

[0013] Preferably, the locking assembly includes an internally threaded sleeve block threadedly connected to the outer wall of the connecting pipe head and a pressure plate rotatably installed on the lower side of the internally threaded sleeve block, the outer wall of the connecting pipe head is provided with an external thread matching the internally threaded sleeve block, the outer wall of the internally threaded sleeve block is equidistantly provided with longitudinal anti-slip grooves, the inner diameter of the pressure plate decreases from bottom to top, the outer diameter of the groove block increases from top to bottom, and the inner diameter of the lower end opening of the pressure plate is larger than the upper end outer diameter of the groove block.

[0014] Preferably, the adjustment assembly includes a fixing bracket fixedly arranged at the lower end of the nozzle seat body, the lower end of the fixing bracket is connected to one end of the connecting bracket, the other end of the connecting bracket is connected to one end of the rotating bracket, the other end of the rotating bracket is connected to the fixing seat, the ends of the fixing bracket and the rotating bracket connected to the connecting bracket are both provided with a first positioning pin, and the first positioning pin is fixedly connected to one side of the end of the fixing bracket and the rotating bracket, the other side of the end of the fixing bracket and the rotating bracket is sleeved on the first positioning pin, and the two ends of the connecting bracket are rotatably sleeved in the middle of the first positioning pin. The cam is provided with an outer thread at one end of the first locating pin which passes through the fixed frame and the rotating frame and is sleeved with a first screw sleeve through a thread. First anti-slip pads are provided on both sides of the end of the connecting frame and on the inner side of the first screw sleeve. A second locating pin is fixedly provided on the upper end of the fixed seat. The other end of the rotating frame is rotatably sleeved on the second locating pin. Second anti-slip pads are provided on the upper and lower sides of the rotating frame. The upper end of the second locating pin is sleeved with a second screw sleeve through a thread. The lower side of the second screw sleeve is cylindrical, and the upper side of the second screw sleeve is hexagonal.

[0015] Preferably, the limit assembly includes an insert block fixedly arranged at the upper end of the movable column and a slot opened on the side of the fixed seat and adapted to the insert block, the end of the insert block and the opening edge of the slot are both provided with rounded corners, the outer wall of the insert block is symmetrically provided with two groups of movable grooves, a limit block is movably arranged at the opening of the movable groove, a second spring is transversely arranged inside the movable groove, the two ends of the second spring are respectively abutted against the inner end of the limit block and the inner wall of the movable groove, and the outer end of the limit block is hemispherical.

[0016] Preferably, the anti-skid rubber pad is composed of a plurality of groups of stepped arc-shaped rubber pads, and the longitudinal section of the anti-skid rubber pad is in a stepped tooth shape.

[0017] Preferably, the clamping assembly includes a slide groove longitudinally opened inside the fixed column and the movable column, a clamping block is arranged in the slide groove, a rotating sleeve is rotatably installed on the clamping block in the fixed column, a screw rod is rotatably arranged in the rotating sleeve, a nut is rotatably installed between the clamping blocks in the two groups of movable columns, and the nut is connected to the screw rod through a threaded sleeve.

[0018] Preferably, the surfaces of the clamping block in the fixed column and the clamping block in the movable column on one side opposite to each other are both provided with transverse anti-skid grooves, and the inner wall of the slide groove is provided with anti-skid convex strips matched with the anti-skid grooves on the surface of the clamping block.

[0019] The beneficial effects of the present invention are as follows: the present invention can realize the clamping and fixing of the device by setting the fixed column and the movable column in cooperation with the clamping assembly, and in the thicker part that the sorting device cannot clamp, the movable column can be flipped to the upper side of the fixed column, and locked by the limit assembly, and the device can be adsorbed and fixed on the surface of the metal part of the device that can be magnetically attracted by the magnet sheet, which not only increases the installation possibility of the device, but also enhances the applicability of the device, and reduces the irreversible installation loss such as the need to punch holes during installation;

[0020] In addition, the device is provided with an adjustment component, which allows the position of the nozzle seat to be rotated or extended after installation according to the installation position and usage conditions, which not only greatly increases the flexibility of use of the device, but also the simple adjustment method and structure are convenient for personnel to operate and repair;

[0021] In addition, the device is provided with a filter screen for filtering in the connecting pipe head, so that fine sand and gravel can be used for a long time to prevent the nozzle or the atomizing head from being blocked, thereby affecting the spraying effect of the device, and the filter screen can be taken out from the net slot by opening the locking assembly and rotating the slot block, which is convenient for subsequent cleaning and maintenance and beneficial to the long-term use of the device;

[0022] At the same time, the protective cover is provided with a telescopic component so that when the device is in use, such as when the installation position is in contact with aggregate, the protective cover will be forced to shrink and cover the nozzle. This can prevent the nozzle surface from being contaminated with aggregate dust when the rotating head is buried in the aggregate due to the operation of the device, causing blockage or unnecessary wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a schematic front view of the structure of the present invention;

[0025] Figure 2 It is a schematic rear view of the structure of the present invention;

[0026] Figure 3 It is a schematic diagram of the structure of the present invention in a magnetically attracted installation state;

[0027] Figure 4 It is a schematic diagram of the structure of the present invention in an inverted hanging installation state;

[0028] Figure 5 It is a cross-sectional schematic diagram of the connection structure of the connecting pipe head and the rotating head in the present invention;

[0029] Figure 6 It is a schematic diagram of the structural cross section of the rotating head in the present invention;

[0030] Figure 7 It is a schematic diagram of the structural cross section of the telescopic assembly in the present invention;

[0031] Figure 8 It is a schematic diagram of the slot block in the present invention in an open state;

[0032] Fig. 9 It is a schematic diagram of the structural cross section of the nozzle seat body in the present invention;

[0033] Fig.10 It is a schematic diagram of the structural cross section in the limiting groove of the present invention;

[0034] Fig.11 It is a structural schematic diagram of the regulating component in the present invention;

[0035] Fig.12 It is a schematic diagram of the structural cross section of the limiting component in the present invention;

[0036] Fig.13 It is a schematic diagram of the structural cross-section of the fixed column and the movable column in the present invention;

[0037] Fig.14 It is a schematic diagram of the structure of the clamping assembly in the present invention;

[0038] Fig.15 It is a schematic diagram of the structural cross section in the chute of the present invention.

[0039] In the figure: 1, nozzle seat; 2, connecting pipe head; 3, rotating head; 4, sealing rubber ring; 5, nozzle; 6, atomizing head; 7, protective cover; 8, guide groove; 9, guide block; 10, first spring; 11, internal thread ring block; 12, external groove; 13, groove block; 14, limit groove; 15, column block; 16, frame; 17, filter screen; 18, first sealing gasket; 19, second sealing gasket; 20, mesh slot; 21, internal thread sleeve block; 22, pressure plate; 23, fixing frame; 24, connection Frame; 25, rotating frame; 26, fixed seat; 27, first positioning pin; 28, first screw sleeve; 29, first anti-skid gasket; 30, second positioning pin; 31, second anti-skid gasket; 32, second screw sleeve; 33, fixed column; 34, movable column; 35, magnet sheet; 36, plug block; 37, slot; 38, movable slot; 39, limit block; 40, second spring; 41, anti-skid rubber pad; 42, slide slot; 43, clamp block; 44, rotating sleeve; 45, nut; 46, screw. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figure 1-15 An embodiment of the present invention is as follows: a dust prevention device for an aggregate sorting device comprises a nozzle seat body 1, a connecting pipe head 2 is arranged at the upper end of the nozzle seat body 1, a rotating head 3 is rotatably mounted at the upper end of the connecting pipe head 2, a sealing rubber ring 4 is arranged at the connection between the lower end of the rotating head 3 and the connecting pipe head 2, three groups of nozzles 5 are arranged in an annular array inside the rotating head 3, an atomizing head 6 is arranged at the opening of the nozzle 5, a protective cover 7 is arranged at the upper end of the rotating head 3 through a telescopic component, the telescopic component comprises four groups of guide grooves 8 arranged in an annular array on the inner wall of the protective cover 7, a guide block 9 is slidably arranged in the guide groove 8, the guide block 9 is fixedly connected to the upper outer wall of the rotating head 3, a first spring 10 is longitudinally arranged in the guide groove 8, and the upper and lower ends of the first spring 10 are respectively against the upper inner wall of the guide groove 8 and the upper end of the guide block 9, such as Figure 4 and Figure 7As shown, when the device is in use, if it is inserted into the material pile according to the displacement of the equipment, the protective cover 7 will be stressed before the nozzle 5, and move toward the side of the connecting pipe head 2 to cover and shield the nozzle 5 and the atomizing head 6, thereby suspending the spraying. At the same time, this can prevent the material particles from directly contacting the nozzle 5 and the atomizing head 6 to cause blockage or inevitable wear, and after the rotating head 3 leaves the material pile according to the displacement of the equipment at the installation position, the first spring 10 will push the protective cover 7 to reset through the restoring force to open the nozzle 5 and the atomizing head 6 to continue the spraying work.

[0042] The lower end of the protective cover 7 is rotatably provided with an internal thread ring block 11, and the outer wall of the rotating head 3 is provided with an external thread matched with the internal thread ring block 11, and the external thread is located at the lower side of the nozzle 5, such as Figure 7 As shown, when the device is not in use or idle, the internal threaded ring block 11 can be manually pressed down and rotated to lock the threaded connection with the surface of the rotating head 3, so that the protective cover 7 can keep covering and shielding the nozzle 5 and the atomizing head 6, so as to protect the nozzle 5 and the atomizing head 6 and prevent external impurities from entering and causing blockage or wear.

[0043] An outer groove 12 is provided on the side of the connecting pipe head 2, a groove block 13 is rotatably provided in the outer groove 12, a frame 16 is provided on the inner wall of the groove block 13, a filter screen 17 is provided on the inner side of the frame 16, a first sealing gasket 18 is glued to the outer wall of one end of the frame 16 close to the groove block 13, a second sealing gasket 19 is glued to the surface of one side of the groove block 13 close to the connecting pipe head 2, a mesh groove 20 adapted to the frame 16 is provided inside the connecting pipe head 2, and a mesh groove 20 adapted to the frame 16 is symmetrically provided on the upper side of the inner wall of the groove block 13. Two groups of limiting grooves 14 are provided, and a column block 15 is slidably arranged in the limiting groove 14. The end of the column block 15 placed in the limiting groove 14 is cylindrical, and the outer end of the column block 15 is fixedly connected to the frame 16. The outer diameter of the first sealing gasket 18 is adapted to the inner diameter of the opening of the mesh groove 20. The longitudinal section of the first sealing gasket 18 is triangular. The second sealing gasket 19 surrounds the outer sides of the two groups of limiting grooves 14, and the inner wall of the outer groove 12 is provided with a sealing groove adapted to the second sealing gasket 19. Figure 8 , Fig. 9 and Fig.10 As shown, this structure allows the filter screen 17 used to filter impurities in the water to be removed, thereby facilitating its cleaning and maintenance, which is beneficial to the long-term use of the device. At the same time, the first sealing gasket 18 and the second sealing gasket 19 can double-seal the opening of the mesh slot 20, thus avoiding insufficient water pressure and waste of resources caused by water seepage.

[0044] A locking assembly is provided on the outer side of the connecting pipe head 2, and the locking assembly includes an internal thread sleeve block 21 which is threadedly sleeved on the outer wall of the connecting pipe head 2 and a pressing plate 22 which is rotatably mounted on the lower side of the internal thread sleeve block 21. The outer wall of the connecting pipe head 2 is provided with an external thread which matches the internal thread sleeve block 21. The outer wall of the internal thread sleeve block 21 is equidistantly provided with longitudinal anti-slip grooves. The inner diameter of the pressing plate 22 decreases from bottom to top, and the outer diameter of the groove block 13 increases from top to bottom. The inner diameter of the lower end opening of the pressing plate 22 is larger than the upper end outer diameter of the groove block 13. Figure 5 and Figure 8 As shown, the structure is used to tightly close the groove block 13. When the internal threaded sleeve 21 is rotated, the internal threaded sleeve 21 will move up and down along the connecting pipe head 2 through the threaded action on the surface of the connecting pipe head 2, so that the pressure plate 22 can be raised and lowered. When it is raised, the groove block 13 can be opened, and when it is lowered, its inclined inner wall will gradually press the groove block 13, thereby ensuring that the first sealing gasket 18 and the second sealing gasket 19 can be tightly attached to ensure the sealing effect.

[0045] The lower end of the nozzle seat body 1 is connected to the fixed seat 26 through an adjustment component. The adjustment component includes a fixed frame 23 fixedly arranged at the lower end of the nozzle seat body 1. The lower end of the fixed frame 23 is connected to one end of the connecting frame 24. The other end of the connecting frame 24 is connected to one end of the rotating frame 25. The other end of the rotating frame 25 is connected to the fixed seat 26. The ends of the fixed frame 23 and the rotating frame 25 connected to the connecting frame 24 are all provided with a first positioning pin 27, and the first positioning pin 27 is fixedly connected to one side of the end of the fixed frame 23 and the rotating frame 25. The other side of the end of the fixed frame 23 and the rotating frame 25 is sleeved on the first positioning pin 27. The two ends of the connecting frame 24 rotate. The first locating pin 27 is sleeved in the middle position of the first locating pin 27, and one end of the first locating pin 27 passing through the fixed frame 23 and the rotating frame 25 is provided with an external thread and is sleeved with a first screw sleeve 28 through a thread. Both sides of the end of the connecting frame 24 and the inner side of the first screw sleeve 28 are provided with a first anti-slip pad 29, and the upper end of the fixed seat 26 is fixedly provided with a second locating pin 30, and the other end of the rotating frame 25 is rotatably sleeved on the second locating pin 30. The upper and lower sides of the rotating frame 25 are provided with a second anti-slip pad 31, and the upper end of the second locating pin 30 is sleeved with a second screw sleeve 32 through a thread, and the lower side of the second screw sleeve 32 is cylindrical, and the upper side of the second screw sleeve 32 is hexagonal, as shown in FIG. Figure 1 and Fig.11As shown, the structure is used to adjust the position of the nozzle seat body 1 after installation, so as to change the range and angle of the spraying to suit different situations, wherein the adjustment can be achieved by loosening the first screw sleeve 28 and the second screw sleeve 32, and the first screw sleeve 28 and the second screw sleeve 32 can be tightened after the adjustment. When the first screw sleeve 28 is tightened, it will drive the two ends of the rotating frame 25 or the fixed frame 23 to clamp the end of the connecting frame 24, and cooperate with the first anti-slip gasket 29 to increase the friction of the contact surface, so that the rotation point has obvious resistance to achieve tightening, and when the second screw sleeve 32 is tightened, it will clamp the rotating frame 25 on the fixed seat 26, and cooperate with the second anti-slip gasket 31 to increase the friction of the contact surface to achieve tightening.

[0046] A fixed column 33 is provided at the lower end of the fixed seat 26, and two groups of movable columns 34 are symmetrically rotatably installed on the side of the fixed seat 26. Magnet sheets 35 are provided on the planes of the fixed column 33 and the movable column 34. A limit assembly for connecting with the fixed seat 26 is provided at the upper end of the movable column 34. The limit assembly includes an insert block 36 fixedly provided at the upper end of the movable column 34 and a slot 37 opened on the side of the fixed seat 26 and adapted to the insert block 36. The end of the insert block 36 and the opening edge of the slot 37 are both provided with rounded corners. Two groups of movable grooves 38 are symmetrically provided on the outer wall of the insert block 36. A limit block 39 is movably provided at the opening of the movable groove 38. A second spring 40 is transversely provided inside the movable groove 38. The two ends of the second spring 40 are respectively abutted against the inner end of the limit block 39 and the inner wall of the movable groove 38. The outer end of the limit block 39 is hemispherical, such as Figure 3 and Fig.12 As shown, the structure is used to limit the movable column 34 after rotating it to the upper side of the fixed seat 26, thereby ensuring that the magnet pieces 35 of the movable column 34 and the fixed column 33 are parallel to facilitate magnetic fixation. At the same time, the structure is convenient for locking and opening without the use of tools.

[0047] The arc surface ends of the fixed column 33 and the movable column 34 are glued with anti-skid rubber pads 41, which are composed of a plurality of groups of stepped arc-shaped rubber pads. The longitudinal section of the anti-skid rubber pad 41 is in the shape of stepped teeth, such as Figure 1 and Figure 4 As shown, this structure enables the fixed column 33 and the movable column 34 to increase the friction with the contact surface through the anti-slip rubber pad 41 when performing the clamping operation, thereby increasing the anti-slip property, thereby ensuring the stability during clamping and avoiding the occurrence of slipping and falling.

[0048] A clamping assembly for clamping is provided between the fixed column 33 and the movable column 34. The clamping assembly includes a slide groove 42 longitudinally opened inside the fixed column 33 and the movable column 34. A clamping block 43 is provided in the slide groove 42. A rotating sleeve 44 is rotatably installed on the clamping block 43 in the fixed column 33. A screw 46 is rotatably provided in the rotating sleeve 44. A nut 45 is rotatably installed between the clamping blocks 43 in the two groups of movable columns 34. Both ends of the nut 45 are provided with a rotating shaft, and the clamping block 43 is symmetrically rotatably sleeved on the rotating shaft of the nut 45. Fig.14 As shown, the nut 45 is threadedly sleeved on the screw rod 46, and the clamping block 43 in the fixed column 33 and the clamping block 43 in the movable column 34 are both provided with a transverse anti-skid groove on the surface of the clamping block 43, and the inner wall of the slide groove 42 is provided with an anti-skid convex strip adapted to the anti-skid groove on the surface of the clamping block 43, as shown in FIG. Fig.13 As shown in the column block 15, this structure allows the fixed column 33 and the movable column 34 to adjust the distance between them, so as to clamp the object to fix the device, and when the structure is not in use, the clamp block 43 can be disengaged from the slide groove 42 and removed, so that the movable column 34 can be rotated and connected to the fixed seat 26 through the limit assembly.

[0049] Working principle: Water is passed through the external hoses at both ends of the nozzle base body 1, and the water will enter the rotating head 3 from the connecting pipe head 2, and be sprayed out through the nozzles 5 obliquely arranged in the rotating head 3. When spraying, it will be atomized and sprayed through the holes of the atomizing head 6. Since the three groups of nozzles 5 are inclined, the reaction force during spraying will cause the rotating head 3 to rotate at the upper end of the connecting pipe head 2, thereby realizing rotary spraying to enhance the dust reduction effect.

[0050] When water passes through the nozzle seat body 1 and enters the connecting pipe head 2, it will pass through the filter screen 17, and the filter screen 17 will filter impurities such as particles in the water to prevent the nozzle 5 and the atomizing head 6 from being blocked. As the use time increases, too many impurities will accumulate on the lower side of the filter screen 17. At this time, the internal thread sleeve 21 can be rotated so that the internal thread sleeve 21 moves upward through the thread action on the surface of the connecting pipe head 2, and drives the pressure plate 22 to move upward, so that the pressure plate 22 and the groove block 13 are staggered, and the groove block 13 can be rotated and pulled away from the outer groove 12, and in this process, the frame 16 will be driven to disengage from the mesh groove 20, and at the same time, the column block 15 will slide and rotate in the limit groove 14 to make up for the frame 1 6 and the displacement of the slot block 13. After the frame 16 is removed from the mesh slot 20, the filter screen 17 can be cleaned and maintained. After the processing is completed, the frame 16 is aligned with the mesh slot 20 and inserted, and the slot block 13 is pushed and closed toward the outer groove 12, so that the first sealing gasket 18 blocks the opening of the mesh slot 20 for sealing, and the second sealing gasket 19 is embedded in the sealing groove of the inner wall of the outer groove 12. Then, the internal threaded sleeve block 21 is rotated so that the internal threaded sleeve block 21 drives the pressure plate 22 to move downward, and after the pressure plate 22 continues to move downward, its inner wall will cooperate with the inclined surface of the outer wall of the slot block 13 to continuously squeeze the slot block 13, so that the slot block 13 is tightly attached to the outer groove 12, thereby achieving a tight seal.

[0051] During installation, if a clamping installation method is required, the three groups of clamping blocks 43 are inserted into the slide grooves 42 in the two groups of movable columns 34 and one group of fixed columns 33 respectively. Figure 2 and Fig.13 As shown, the clamping block 43 is then moved up to the upper side of the slide groove 42, so that the anti-skid groove on the surface of the clamping block 43 fits with the anti-skid convex strip in the slide groove 42, and the clamped object is placed between the fixed column 33 and the movable column 34, and then the screw 46 is rotated to make the nut 45 translate with it by threading, thereby driving each movable column 34 and the fixed column 33 to move closer to each other to achieve clamping. In this way, when the clamping block 43 at the end of the screw 46 and the clamping blocks 43 on both sides of the nut 45 are close to each other, the anti-skid groove on the surface and the anti-skid convex strip in the slide groove 42 fit together. Therefore, after the clamping is tightened, the clamping block 43 cannot naturally fall out of the slide groove 42, so that the device can be used as shown in FIG. Figure 4The situation shown is reversed, so that the device can be installed on the lower opening part such as the suction port, and in the case of installation, such as displacement of the installation part, such as when the suction port moves downward to absorb material, causing the protective cover 7 to contact the material, the protective cover 7 will be forced to move toward the side of the connecting pipe head 2, and squeeze the first spring 10 through the guide block 9. When the protective cover 7 moves toward the side of the connecting pipe head 2, it will cover and shield the nozzle 5, so that the rotating head 3 can be prevented from being inserted into the material, causing the material to cover or wear the nozzle 5 and the atomizing head 6, thereby affecting the use, and after the first spring 10 moves away from the material as the suction port moves, the first spring 10 in a compressed state will pass The over-returning elastic force pushes the protective cover 7 to reset, thereby exposing the nozzle 5, so that the atomizer head 6 can restart the spraying work. In addition, when the equipment is not in use, the protective cover 7 can be manually pressed down to cover and shield the nozzle 5, and the internal thread ring block 11 is rotated after contacting the thread on the surface of the rotating head 3, so that the internal thread ring block 11 is locked with the thread connection, so that the protective cover 7 can keep covering and shielding the nozzle 5, so as to avoid external impurities or objects contacting the nozzle 5 or the atomizer head 6 when the equipment is transported or not in use, causing unnecessary wear or blockage, thereby affecting the use or service life.

[0052] In addition, if clamping installation is not required, a magnetic installation method can be used. It is only necessary to remove the clamp block 43 from the slide groove 42, and then rotate the two sets of movable columns 34 to the upper side of the fixed seat 26. Figure 3 As shown, during the rotation process, the insert block 36 is inserted into the slot 37, and the limit block 39 is forced to be retracted into the movable groove 38 while compressing the second spring 40. After the insert block 36 is inserted into the slot 37 and the limit block 39 is placed on the lower side of the fixed seat 26, the second spring 40 in the compressed state will pop out and reset the limit block 39 through the restoring force, so that the limit block 39 is placed on the lower side of the fixed seat 26 to limit the insert block 36, so that the insert block 36 cannot actively escape from the slot 37. At this time, the two sets of movable columns 34 can be parallel to the fixed column 33, and the device can use the magnet sheet 35 on the plane of the fixed column 33 and the movable column 34 to be magnetically installed on the magnetically attracted part of the device.

[0053] After installation, if the position of the nozzle seat body 1 needs to be adjusted, the second screw sleeve 32 can be rotated to loosen it so that the rotating frame 25 can be rotated on the second positioning pin 30 to adjust the lateral angle of the nozzle seat body 1. At the same time, the two sets of first screw sleeves 28 can also be loosened to change the placement angle of the nozzle seat body 1 and the spraying position of the atomizing head 6 through the folding deformation of the fixed frame 23, the connecting frame 24 and the rotating frame 25 to adapt to different situations. After the adjustment is completed, it is only necessary to tighten the second screw sleeve 32 and the first screw sleeve 28, and fix them through the increased friction of the first anti-slip gasket 29 and the second anti-slip gasket 31. The operation is simple and convenient. The above is the entire working principle of the present invention.

[0054] In the description of the present application, it should be understood that the terms "front", "rear", "left", "right", etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0055] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A dust prevention device for an aggregate sorting device, comprising a nozzle seat (1), a connecting pipe head (2) is arranged at the upper end of the nozzle seat (1), a rotating head (3) is rotatably mounted at the upper end of the connecting pipe head (2), a sealing rubber ring (4) is arranged at the connection between the lower end of the rotating head (3) and the connecting pipe head (2), three groups of nozzles (5) are opened in an annular array inside the rotating head (3), and an atomizing head (6) is arranged at the opening of the nozzle (5), characterized in that: The upper end of the rotating head (3) is provided with a protective cover (7) via a telescopic assembly, and the side edge of the connecting pipe head (2) is provided with an external groove (12); A groove block (13) is rotatably arranged in the outer groove (12), a frame (16) is arranged on the inner wall of the groove block (13), a filter screen (17) is arranged on the inner side of the frame (16), a first sealing gasket (18) is glued to the outer wall of one end of the frame (16) close to the groove block (13), a second sealing gasket (19) is glued to the surface of one side of the groove block (13) close to the connecting pipe head (2), a mesh groove (20) adapted to the frame (16) is provided inside the connecting pipe head (2), and a locking assembly is arranged on the outer side of the connecting pipe head (2); The lower end of the nozzle seat body (1) is connected to the fixed seat (26) through an adjustment component, the lower end of the fixed seat (26) is provided with a fixed column (33), and two groups of movable columns (34) are symmetrically mounted on the side of the fixed seat (26), and the planes of the fixed column (33) and the movable column (34) are provided with magnet sheets (35), and the upper end of the movable column (34) is provided with a limit component for connecting with the fixed seat (26), and the arc surface ends of the fixed column (33) and the movable column (34) are glued with anti-slip rubber pads (41), and a clamping component for clamping is provided between the fixed column (33) and the movable column (34); Two groups of limiting grooves (14) are symmetrically provided on the upper side of the inner wall of the groove block (13), a column block (15) is slidably provided in the limiting groove (14), the end of the column block (15) placed in the limiting groove (14) is cylindrical, the outer end of the column block (15) is fixedly connected to the frame (16), the outer diameter of the first sealing gasket (18) is matched with the inner diameter of the opening of the mesh groove (20), the longitudinal section of the first sealing gasket (18) is triangular, the second sealing gasket (19) surrounds the outer sides of the two groups of limiting grooves (14), and the inner wall of the outer groove (12) is provided with a sealing groove matched with the second sealing gasket (19); The locking assembly comprises an internal thread sleeve (21) which is threadedly sleeved on the outer wall of the connecting pipe head (2) and a pressing plate (22) which is rotatably mounted on the lower side of the internal thread sleeve (21); the outer wall of the connecting pipe head (2) is provided with an external thread which matches the internal thread sleeve (21); the outer wall of the internal thread sleeve (21) is provided with longitudinal anti-slip grooves which are equidistantly arranged; the inner diameter of the pressing plate (22) decreases from bottom to top; the outer diameter of the groove block (13) increases from top to bottom; the inner diameter of the lower end opening of the pressing plate (22) is larger than the outer diameter of the upper end of the groove block (13); The limit assembly comprises an insert block (36) fixedly arranged at the upper end of the movable column (34) and a slot (37) provided on the side of the fixed seat (26) and adapted to the insert block (36); the end of the insert block (36) and the opening edge of the slot (37) are both provided with rounded corners; the outer wall of the insert block (36) is symmetrically provided with two groups of movable grooves (38); a limit block (39) is movably provided at the opening of the movable groove (38); a second spring (40) is transversely provided inside the movable groove (38); the two ends of the second spring (40) are respectively abutted against the inner end of the limit block (39) and the inner wall of the movable groove (38); the outer end of the limit block (39) is hemispherical; The anti-skid rubber pad (41) is composed of a plurality of groups of stepped arc-shaped rubber pads, and the longitudinal section of the anti-skid rubber pad (41) is in the shape of stepped teeth; The clamping assembly includes a slide groove (42) longitudinally opened inside the fixed column (33) and the movable column (34), a clamping block (43) is arranged in the slide groove (42), a rotating sleeve (44) is rotatably installed on the clamping block (43) in the fixed column (33), a screw rod (46) is rotatably arranged in the rotating sleeve (44), a nut (45) is rotatably installed between the clamping blocks (43) in the two groups of movable columns (34), and the nut (45) is connected to the screw rod (46) through a threaded sleeve.

2. The dust prevention device for aggregate sorting device according to claim 1 is characterized in that: The telescopic assembly comprises four groups of guide grooves (8) arranged in an annular array on the inner wall of the protective cover (7), a guide block (9) being slidably arranged in the guide groove (8), the guide block (9) being fixedly connected to the upper outer wall of the rotating head (3), a first spring (10) being longitudinally arranged in the guide groove (8), the upper and lower ends of the first spring (10) respectively abutting against the upper inner wall of the guide groove (8) and the upper end of the guide block (9).

3. The dust prevention device for aggregate sorting device according to claim 1, characterized in that: The lower end of the protective cover (7) is rotatably provided with an internal thread ring block (11), and the outer wall of the rotating head (3) is provided with an external thread matched with the internal thread ring block (11), and the external thread is located at the lower side of the nozzle (5).

4. The dust prevention device for aggregate sorting device according to claim 1 is characterized in that: The adjustment assembly comprises a fixed frame (23) fixedly arranged at the lower end of the nozzle seat body (1); the lower end of the fixed frame (23) is connected to one end of the connecting frame (24); the other end of the connecting frame (24) is connected to one end of the rotating frame (25); the other end of the rotating frame (25) is connected to the fixed seat (26); the ends of the fixed frame (23) and the rotating frame (25) connected to the connecting frame (24) are both provided with a first positioning pin (27); and the first positioning pin (27) is fixedly connected to one side of the ends of the fixed frame (23) and the rotating frame (25); the other sides of the ends of the fixed frame (23) and the rotating frame (25) are sleeved on the first positioning pin (27); and the two ends of the connecting frame (24) are rotatably sleeved on the first positioning pin (27). ), one end of the first locating pin (27) passing through the fixed frame (23) and the rotating frame (25) is provided with an external thread and is sleeved with a first screw sleeve (28) through a thread, both sides of the end of the connecting frame (24) and the inner side of the first screw sleeve (28) are provided with a first anti-slip pad (29), the upper end of the fixed seat (26) is fixedly provided with a second locating pin (30), the other end of the rotating frame (25) is rotatably sleeved on the second locating pin (30), the upper and lower sides of the rotating frame (25) are provided with a second anti-slip pad (31), the upper end of the second locating pin (30) is sleeved with a second screw sleeve (32) through a thread, and the lower side of the second screw sleeve (32) is cylindrical, and the upper side of the second screw sleeve (32) is hexagonal.

5. The dust prevention device for aggregate sorting device according to claim 1, characterized in that: The surfaces of the clamping block (43) in the fixed column (33) and the clamping block (43) in the movable column (34) on one side opposite to each other are both provided with transverse anti-skid grooves, and the inner wall of the slide groove (42) is provided with anti-skid convex strips matched with the anti-skid grooves on the surfaces of the clamping block (43).

Images