CN110404757B

CN110404757B - Small-size laborsaving screening sand machine that interior decoration used

Info

Publication number: CN110404757B
Application number: CN201910812290.2A
Authority: CN
Inventors: 林高健
Original assignee: Hangzhou Fuyang Feishang Decoration Engineering Co ltd
Current assignee: Lanling Derong Machinery Co., Ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-07-31
Anticipated expiration: 2039-08-30
Also published as: CN111495730A; CN111495730B; CN110404757A; CN111495731B; CN111495731A

Abstract

The invention belongs to the technical field of decoration, and particularly relates to a small labor-saving sand screening machine for interior decoration, which comprises a conveying belt, a driving motor, a rear support, rolling wheels, a front support, a vibration mechanism and a fixing frame, wherein compared with the traditional sand screening machine, the small sand screening machine designed by the invention has the advantages that the size is smaller, the carrying is convenient, the vibration mechanism is designed on two supporting rotating shafts, the space at the lower side of an output belt is saved, and the sand screening machine is more convenient in the carrying process; meanwhile, the vibration mechanism becomes simpler, and the vibration effect is better; when the small sand screening machine designed by the invention is used, the lower end of the sand screening mechanism is directly inserted into sand, the sand is automatically transferred onto the conveying belt through the rotation of the conveying belt in the working process, the sand is filtered by the conveying belt, the sand does not need to be moved manually, and the labor is saved.

Description

Small-size laborsaving screening sand machine that interior decoration used

Technical Field

The invention belongs to the technical field of decoration, and particularly relates to a small labor-saving sand screening machine for interior decoration.

Background

When the tradition carries out construction, need use the sand, because the granule size of sand is different, so need carry out artifical screening according to the condition of difference, the net of traditional sieve sand is the slope and places the next door of piling up at sand, the continuous sand that raises of instrument of taking through the manual work, make the sand along with the effect of gravity, by the above-mentioned of screen cloth when falling down, through the screen cloth, will drop in the screen cloth below than the granule that the screen cloth gap is little, the granule that is bigger than the screen cloth gap falls in the top of screen cloth, continuous repetitive operation.

The sand screening machine used in the current indoor decoration is generally divided into two types, wherein one type is a flat plate type screen sand screening machine, the vibration of the flat plate screen is controlled by a motor, and sand is filtered by vibration; the other type is a roller type sand screening machine, a motor controls a roller to rotate, the roller is provided with screening holes, and sand is filtered through the rotation of the roller; however, in the use process of the two sand screening machines, unfiltered sand needs to be transferred to the flat screen or the roller, so that people need to bend over continuously in the feeding process, the labor intensity is high, and the sand screening machines are labor-consuming and inconvenient to use; it is therefore necessary to design a sand screening machine that is convenient and does not require the operator to constantly transfer sand onto a flat screen or into a drum.

The invention designs a small labor-saving sand screening machine for indoor decoration to solve the problems.

Disclosure of Invention

In order to solve the defects in the prior art, the invention discloses a small labor-saving sand screening machine for indoor decoration, which is realized by adopting the following technical scheme.

The utility model provides a small-size laborsaving screening sand machine that interior decoration used which characterized in that: the device comprises a conveyor belt, a driving motor, a rear bracket, rolling wheels, a front bracket, a limiting plate, a vibration mechanism, a triangular push block, a supporting roller, a fixed bracket and supporting rotating shafts, wherein the upper end and the lower end of the fixed bracket are respectively provided with one supporting rotating shaft; two clamping blocks are symmetrically arranged on two sides of the upper end of the rear support frame, two supporting blocks are symmetrically arranged on two side surfaces of the upper end of the fixing frame, and the two supporting blocks and the two clamping blocks are matched in a one-to-one correspondence manner; the two supporting blocks play a role in limiting the two clamping blocks, and when the rear bracket is opened and supported, the supporting limiting effect is played on the rear bracket through the matching of the two supporting blocks and the two clamping blocks, so that the rear bracket is prevented from continuously swinging downwards after being stressed, and the normal use of the sand screening machine is prevented from being influenced; the two rolling wheels are respectively arranged on the two supporting rotating shafts; the conveying belt is provided with screening holes which are uniformly distributed, and the conveying belt is wound on the two rolling wheels; the driving motor is arranged at the upper end of the fixing frame through the supporting ring and controls one supporting rotating shaft positioned at the upper side of the two supporting rotating shafts to rotate; the two vibration mechanisms are respectively arranged on the two supporting rotating shafts.

A plurality of elastic plates are uniformly arranged on the inner wall surface of the conveyor belt, one end of each elastic plate is fixedly arranged on the inner wall of the conveyor belt through uniformly distributed rivets, the elastic plates arranged on the conveyor belt are correspondingly matched with the screening holes formed in the conveyor belt, and each elastic plate corresponds to one row of screening holes; the other end of the elastic plate can swing to open, and when one of the elastic plates is opened, a row of screening holes formed on the conveying belt matched with the elastic plate are opened; when the elastic plate is designed, one elastic plate can be designed to correspond to a plurality of rows of screening holes, and preferably one elastic plate corresponds to a plurality of rows of screening holes, and more screening holes are arranged, so that more holes are arranged, the occupied area is larger, and the sand screening efficiency is higher.

The lower end of the fixed frame is fixedly provided with a limiting plate, the limiting plate is positioned in the middle of the conveyor belt, and the limiting plate is matched with an elastic plate on the inner wall of the conveyor belt; the limiting plate has a limiting effect on the elastic plate which is close to the lower end rolling wheel and is positioned on the upper side of the inner wall of the conveyor belt.

The fixing frame is provided with a triangular push block, the triangular push block is matched with the conveyor belt, and the lower side surface of the triangular push block is tightly contacted with the upper side surface of an elastic plate arranged on the lower side part of the conveyor belt; the triangular push block is used for pushing the filtered sand on the conveying belt to two sides of the conveying belt in movement, so that the filtered sand and the unfiltered sand are prevented from being mixed, and a filtered sand pile is easily formed and is convenient to use.

A plurality of supporting rollers are uniformly arranged on the lower side of the upper side part of the conveyor belt, and a plurality of supporting rollers are uniformly arranged on the lower side of the lower side part of the conveyor belt; the support rollers support the conveyor belt.

The vibration mechanism comprises a return spring, a first driving wheel, a first sliding sealing structure, a second driving wheel and driving teeth, wherein the return spring is respectively arranged between one end of the rolling wheel and the corresponding side surface of the fixed frame; the reset spring plays a role in resetting the rolling wheel; a first sliding sealing structure is arranged between the other end of the rolling wheel and the corresponding side surface of the fixed frame, one end of the first sliding sealing structure is fixedly arranged on the rolling wheel, and the other end of the first sliding sealing structure is fixedly arranged on the fixed frame; the structure of the first driving wheel is completely the same as that of the second driving wheel, for the first driving wheel, three driving teeth which are uniformly distributed in the circumferential direction are arranged on the end face of one end of the first driving wheel, the other end of the first driving wheel is fixedly arranged on the end face of the rolling wheel, one end of the second driving wheel which is not provided with the driving teeth is fixedly arranged on the inner end face of one side, close to the fixed frame, of the first sliding sealing structure, and the driving gears on the first driving wheel and the second driving wheel are meshed with each other; when the two supporting rotating shafts rotate, the two supporting rotating shafts can drive the two rolling wheels to rotate, the two rolling wheels drive the corresponding first driving wheels to rotate, and the first driving wheels can move along the axes of the rolling wheels while rotating because the driving teeth between the first driving wheels and the second driving wheels are meshed with each other and the second driving wheels are fixed, so that the first driving wheels can move to drive the corresponding rolling wheels to move, and the corresponding reset springs can be extruded by the movement of the rolling wheels; when the extreme point of the driving tooth on the first driving wheel rotates to be in contact with the extreme point of the driving tooth on the second driving wheel, the first driving wheel continuously rotates to enable the first driving wheel to reset under the action of a reset spring, namely the first driving wheel rotates and moves back and forth along the axis of the corresponding rolling wheel, the first driving wheel moves to drive the corresponding rolling wheel to move, and the rolling wheel moves to drive the conveyor belt to move, namely the conveyor belt vibrates along the axis direction of the rolling wheel while rotating; first sliding seal structure plays sealed guard action to first drive wheel and second drive wheel, prevents that first drive wheel and second drive wheel are at relative pivoted in-process, and when first drive wheel moved relative second drive wheel, sand got into between first drive wheel and the second drive wheel through the gap of the drive tooth between first drive wheel and the second drive wheel, influenced the effect of first drive wheel and second drive wheel.

As a further improvement of the technology, the second synchronizing wheel is fixedly arranged on the output shaft of the driving motor, the first synchronizing wheel is fixedly arranged at one end of one supporting rotating shaft positioned at the upper side in the two supporting rotating shafts, and the first synchronizing wheel and the second synchronizing wheel are connected through a first synchronizing belt; the third synchronizing wheel is fixedly arranged at one end of one supporting rotating shaft positioned at the upper side in the two supporting rotating shafts, the fourth synchronizing wheel is fixedly arranged at one end of one supporting rotating shaft positioned at the lower side in the two supporting rotating shafts, and the third synchronizing wheel and the fourth synchronizing wheel are connected through a second synchronous belt.

As a further improvement of the technology, the limiting plate is fixedly arranged at the lower end of the fixing frame through two symmetrically distributed supporting bars.

As a further improvement of the present technology, the return spring is a compression spring.

As a further improvement of the technology, one end of the first sliding sealing structure is fixedly installed on the fixed frame in a welding manner, and the other end of the first sliding sealing structure is fixedly installed on the rolling wheel in a welding manner; first sliding seal structure plays sealed guard action to first drive wheel and second drive wheel, prevents that first drive wheel and second drive wheel are at relative pivoted in-process, and when first drive wheel moved relative second drive wheel, sand got into between first drive wheel and the second drive wheel through the gap of the drive tooth between first drive wheel and the second drive wheel, influenced the effect of first drive wheel and second drive wheel.

As a further improvement of the technology, two second sliding sealing structures for preventing sand from entering between the rolling wheels and the supporting rotating shafts are symmetrically arranged between the two rolling wheels and the corresponding supporting rotating shafts respectively.

The second sliding sealing structure adopts the common sliding sealing structures in the existing market, such as a common sliding ring sealing mechanism, a sliding bearing double sealing mechanism and the like.

As a further improvement of the technology, the triangular push block is fixedly arranged on the fixed frame through the mounting block.

As a further improvement of the present technology, a chain wheel is used as an alternative to the first synchronizing wheel and the second synchronizing wheel, and the two chain wheels are connected by a chain.

As a further improvement of the present technology, the diameter of the first synchronizing wheel is three times the diameter of the second synchronizing wheel; the effects of speed reduction and torque increase are achieved.

As a further improvement of the technology, two baffles are arranged on the upper side of the fixing frame; a gap is formed between the baffle and the conveyor belt; the baffle plate is used for preventing the filtered coarse sand and the filtered stones from being vibrated into the filtered fine sand on the two sides in the vibration process of the conveyor belt; the inclined baffles have the function that unfiltered sand can completely enter between the two baffles and cannot move to the outer sides of the two baffles, so that the two sides of the conveyor belt, on which the sand is scattered when the conveyor belt vibrates, are prevented from being mixed with the filtered sand; the clearance between baffle and the conveyer belt can prevent that the conveyer belt from interfering with the baffle in vibration process, though this clearance probably makes the sand that is located on the upside conveyer belt enter the downside that flows into the conveyer belt through this clearance and is mixed with the fine sand after being screened, when guaranteeing that the clearance is less, the sand that flows down is also less, can not cause too big influence to the fine sand after the screening.

Compared with the traditional decoration technology, the decoration method has the following beneficial effects:

1. compared with the traditional sand screening machine, the small sand screening machine designed by the invention has the advantages that the size is smaller, the carrying is convenient, and when the small sand screening machine is used, the rear support is opened and supported, so that a conveying belt for filtering sand forms a certain included angle with the ground; when the sand screening machine is not used, the rear support is folded, so that the sand screening machine is flat, and is convenient to carry and transport.

2. The small sand screening machine designed by the invention has the advantages that the rear support is directly opened and supported when the small sand screening machine is used, other additional operations are not needed, the sand screening mechanism is convenient to operate, and meanwhile, the sand screening machine is convenient to arrange when the small sand screening machine is used.

3. When the small sand screening machine designed by the invention is used, the lower end of the sand screening mechanism is directly inserted into sand, the sand is automatically transferred onto the conveying belt through the rotation of the conveying belt in the working process, the sand is filtered by the conveying belt, the sand does not need to be moved manually, and the labor is saved.

4. According to the small sand screening machine, the vibration mechanism is designed on the two supporting rotating shafts, so that the space below the output belt is saved, and the sand screening machine is more convenient to carry; meanwhile, the vibration mechanism becomes simpler and has a certain vibration effect.

Drawings

Fig. 1 is an external view of an entire part.

Fig. 2 is a schematic view of the overall component distribution.

Fig. 3 is a schematic plan view of the overall component distribution.

Fig. 4 is a schematic diagram of a triangular push block distribution.

Fig. 5 is a schematic view of the drive motor installation.

Fig. 6 is a schematic view of a first timing belt installation.

Fig. 7 is a schematic view of the structure of the limiting plate.

Fig. 8 is a front and rear bracket mounting schematic.

Fig. 9 is a schematic view of the rear bracket structure.

Fig. 10 is a schematic view of the arrangement of the support rollers.

FIG. 11 is a schematic illustration of a conveyor belt installation.

Fig. 12 is a schematic view of the support roller mounting.

Fig. 13 is a schematic structural diagram of the triangular push block.

Fig. 14 is a schematic view of the vibration mechanism installation.

Fig. 15 is a schematic diagram of a conveyor belt configuration.

Fig. 16 is a schematic view of the distribution of the elastic plates.

Fig. 17 is a schematic view of the spring plate mounting.

Fig. 18 is a schematic view of the second sliding seal structure installation.

Figure 19 is a schematic view of the screen hole and spring plate combination.

Figure 20 is a schematic view of a roller wheel installation.

FIG. 21 is a schematic diagram of the structure of the spring plate.

FIG. 22 is a schematic view of a rivet distribution.

FIG. 23 is a rivet structure schematic.

Fig. 24 is a schematic view of the vibration mechanism.

Fig. 25 is a return spring installation schematic.

Fig. 26 is a schematic view of a first drive wheel and a second drive profile.

Fig. 27 is a schematic view of a first sliding seal structure.

Figure 28 is a schematic view of the first drive wheel and the second drive wheel cooperating.

Fig. 29 is a schematic view of a first drive wheel.

Fig. 30 is a schematic view of the operating principle of the sand screening machine.

Number designation in the figures: 1. a conveyor belt; 2. a drive motor; 3. a rear bracket; 4. a rolling wheel; 5. a front bracket; 6. a limiting plate; 7. a vibration mechanism; 8. a triangular push block; 9. a support roller; 10. a fixed mount; 11. a support shaft; 12. a support ring; 13. a first synchronization belt; 14. a first synchronizing wheel; 15. a second synchronizing wheel; 16. a supporting strip; 17. a support block; 18. a clamping block; 19. a second synchronous belt; 35. a second sliding seal structure; 36. mounting blocks; 37. an elastic plate; 38. a screening well; 39. a third synchronizing wheel; 40. a fourth synchronizing wheel; 41. riveting; 42. a return spring; 43. a first drive wheel; 44. a first sliding seal structure; 45. a second drive wheel; 46. driving the teeth; 47. and a baffle plate.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples or figures are illustrative of the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 1 and 2, the device comprises a conveyor belt 1, a driving motor 2, a rear support 3, rolling wheels 4, a front support 5, a limiting plate 6, a vibration mechanism 7, a triangular push block 8, a supporting roller 9, a fixed frame 10 and supporting rotating shafts 11, wherein as shown in fig. 5 and 8, the upper end and the lower end of the fixed frame 10 are respectively provided with one supporting rotating shaft 11, as shown in fig. 8, the front support 5 is fixedly arranged at the lower end of the fixed frame 10, and the rear support 3 is arranged on the supporting rotating shaft 11 which is positioned at the upper side of the two supporting rotating shafts 11 in a rotating fit manner; as shown in fig. 9, two fixture blocks 18 are symmetrically installed on both sides of the upper end of the rear bracket 3, as shown in fig. 8, two support blocks 17 are symmetrically installed on both side surfaces of the upper end of the fixing bracket 10, and the two support blocks 17 and the two fixture blocks 18 are correspondingly matched one to one; the two supporting blocks 17 limit the two clamping blocks 18, and when the rear bracket 3 is opened and supported, the supporting and limiting effects on the rear bracket 3 are achieved through the matching of the two supporting blocks 17 and the two clamping blocks 18, so that the rear bracket 3 is prevented from continuously swinging downwards after being stressed, and the normal use of the sand screening machine is prevented from being influenced; the two rolling wheels 4 are respectively arranged on the two supporting rotating shafts 11; the conveyor belt 1 is provided with screening holes 38 which are uniformly distributed, and the conveyor belt 1 is wound on the two rolling wheels 4; as shown in fig. 3 and 5, the driving motor 2 is mounted at the upper end of the fixing frame 10 through the supporting ring 12, and the driving motor 2 controls one supporting rotating shaft 11 located at the upper side of the two supporting rotating shafts 11 to rotate; as shown in fig. 2 and 3, the two vibration mechanisms 7 are respectively mounted on two support shafts 11.

As shown in fig. 15 and 16, a plurality of elastic plates 37 are uniformly mounted on the inner wall surface of the conveyor belt 1, as shown in fig. 22 and 23, one end of each elastic plate 37 is fixedly mounted on the inner wall surface of the conveyor belt 1 by uniformly distributed rivets 41, as shown in fig. 18 and 19, the elastic plates 37 mounted on the conveyor belt 1 are correspondingly matched with screening holes 38 formed on the conveyor belt 1, as shown in fig. 17 and 19, each elastic plate 37 corresponds to a row of screening holes 38; as shown in fig. 21, the other end of the elastic plate 37 can swing open, and when one of the elastic plates 37 is opened, a row of screening holes 38 opened on the conveyor belt 1 engaged with the elastic plate 37 is opened; when the elastic plate 37 is designed, one elastic plate 37 can be designed to correspond to a plurality of rows of screening holes 38.

As shown in fig. 5 and 11, the limiting plate 6 is fixedly mounted at the lower end of the fixing frame 10, and the limiting plate 6 is located in the middle of the conveyor belt 1, as shown in fig. 10, the limiting plate 6 is matched with the elastic plate 37 on the inner wall of the conveyor belt 1; the limiting plate 6 limits the elastic plate 37 on the upper side of the inner wall of the conveyor belt 1 near the lower rolling wheel 4.

As shown in fig. 12 and 13, the fixing frame 10 is provided with a triangular push block 8, the triangular push block 8 is matched with the conveyor belt 1, and the lower side surface of the triangular push block 8 is in close contact with the upper side surface of an elastic plate 37 arranged on the lower side part of the conveyor belt 1; the triangular push block 8 is used for pushing the filtered sand on the conveying belt 1 to two sides of the conveying belt 1 in movement, so that the filtered sand is prevented from being mixed with the unfiltered sand, and a filtered sand pile is easily formed to be convenient to use.

As shown in fig. 12, a plurality of supporting rollers 9 are uniformly installed on the lower side of the upper portion of the conveyor belt 1, and a plurality of supporting rollers 9 are uniformly installed on the lower side of the lower portion of the conveyor belt 1; the support rollers 9 support the conveyor belt 1.

As shown in fig. 24, the vibration mechanism 7 includes a return spring 42, a first driving wheel 43, a first sliding seal structure 44, a second driving wheel 45, and a driving tooth 46, wherein as shown in fig. 25, one return spring 42 is respectively installed between one end of the rolling wheel 4 and the corresponding side surface of the fixing frame 10; the return spring 42 plays a role in returning the rolling wheel 4; as shown in fig. 26 and 27, a first sliding seal structure 44 is installed between the other end of the rolling wheel 4 and the corresponding side surface of the fixing frame 10, one end of the first sliding seal structure 44 is fixedly installed on the rolling wheel 4, and the other end of the first sliding seal structure 44 is fixedly installed on the fixing frame 10; as shown in fig. 28, the first driving wheel 43 and the second driving wheel 45 have the same structure, as shown in fig. 29, for the first driving wheel 43, the end face of one end of the first driving wheel 43 has three driving teeth 46 uniformly distributed in the circumferential direction, the other end of the first driving wheel 43 is fixedly installed on the end face of the rolling wheel 4, the end of the second driving wheel 45 not having the driving teeth 46 is fixedly installed on the inner end face of the first sliding seal structure 44 near the side of the fixed frame 10, and the driving gears on the first driving wheel 43 and the second driving wheel 45 are engaged with each other; when the two supporting rotating shafts 11 rotate, the two supporting rotating shafts 11 can drive the two rolling wheels 4 to rotate, the two rolling wheels 4 drive the corresponding first driving wheels 43 to rotate, and because the driving teeth 46 between the first driving wheels 43 and the second driving wheels 45 are meshed with each other, and the second driving wheels 45 are fixed, the first driving wheels 43 can move along the axes of the rolling wheels 4 while rotating, the first driving wheels 43 move to drive the corresponding rolling wheels 4 to move, and the rolling wheels 4 move to extrude the corresponding return springs 42; after the extreme point of the driving tooth 46 on the first driving wheel 43 rotates to contact with the extreme point of the driving tooth 46 on the second driving wheel 45, the first driving wheel 43 continuously rotates to enable the first driving wheel 43 to reset under the action of the reset spring 42, namely, the first driving wheel 43 moves back and forth along the axis of the corresponding rolling wheel 4 while rotating, the first driving wheel 43 moves to drive the corresponding rolling wheel 4 to move, the rolling wheel 4 moves to drive the conveyor belt 1 to move, namely, the conveyor belt 1 vibrates along the axis direction of the rolling wheel 4 while rotating; the first sliding seal structure 44 plays a role in sealing and protecting the first driving wheel 43 and the second driving wheel 45, and prevents sand from entering between the first driving wheel 43 and the second driving wheel 45 through a gap of the driving teeth 46 between the first driving wheel 43 and the second driving wheel 45 when the first driving wheel 43 moves relative to the second driving wheel 45 in the relative rotation process of the first driving wheel 43 and the second driving wheel 45, and affecting the functions of the first driving wheel 43 and the second driving wheel 45.

As shown in fig. 6, the second synchronizing wheel 15 is fixedly installed on the output shaft of the driving motor 2, the first synchronizing wheel 14 is fixedly installed at one end of one supporting rotating shaft 11 located at the upper side among the two supporting rotating shafts 11, and the first synchronizing wheel 14 and the second synchronizing wheel 15 are connected through the first synchronizing belt 13; the third synchronizing wheel 39 is fixedly installed at one end of one supporting rotating shaft 11 positioned at the upper side among the two supporting rotating shafts 11, the fourth synchronizing wheel 40 is fixedly installed at one end of one supporting rotating shaft 11 positioned at the lower side among the two supporting rotating shafts 11, and the third synchronizing wheel 39 and the fourth synchronizing wheel 40 are connected through the second synchronous belt 19.

As shown in fig. 7, the limiting plate 6 is fixedly mounted at the lower end of the fixing frame 10 by two symmetrically distributed supporting bars 16.

The return spring 42 is a compression spring.

One end of the first sliding seal structure 44 is fixedly mounted on the fixed frame 10 by welding, and the other end of the first sliding seal structure 44 is fixedly mounted on the rolling wheel 4 by welding; the first sliding seal structure 44 plays a role in sealing and protecting the first driving wheel 43 and the second driving wheel 45, and prevents sand from entering between the first driving wheel 43 and the second driving wheel 45 through a gap of the driving teeth 46 between the first driving wheel 43 and the second driving wheel 45 when the first driving wheel 43 moves relative to the second driving wheel 45 in the relative rotation process of the first driving wheel 43 and the second driving wheel 45, and affecting the functions of the first driving wheel 43 and the second driving wheel 45.

As shown in fig. 18 and 20, two second sliding seal structures 35 for preventing sand from entering between the rolling wheels 4 and the supporting rotating shafts 11 are symmetrically installed between each of the two rolling wheels 4 and the corresponding supporting rotating shaft 11.

The second sliding seal structure 35 is a sliding seal structure commonly found in the existing market, such as a sliding ring seal mechanism, a sliding bearing double seal mechanism, etc.

The triangular push block 8 is fixedly arranged on the fixed frame 10 through the mounting block 36.

An alternative to the first synchronizing wheel 14 and the second synchronizing wheel 15 is a chain wheel, and the two chain wheels are connected by a chain.

The diameter of the first synchronizing wheel 14 is three times that of the second synchronizing wheel 15; the effects of speed reduction and torque increase are achieved.

As shown in fig. 9, two baffles 47 are mounted on the upper side of the fixing frame 10; a gap is formed between the baffle 47 and the conveyor belt 1; the baffle 47 functions to prevent the filtered coarse sand and stones from being vibrated into the filtered fine sand on both sides during the vibration of the conveyor 1; the function of the inclined baffle plates 47 is to enable the unfiltered sand to completely enter between the two baffle plates 47 and not move to the outer sides of the two baffle plates 47, so that the two sides of the conveyor belt 1, on which the sand is scattered when the conveyor belt 1 vibrates, are prevented from being mixed with the filtered sand; the gap between the baffle 47 and the conveyor belt 1 can prevent the conveyor belt 1 from interfering with the baffle 47 during vibration, although the gap may cause sand on the upper conveyor belt to flow into the lower side of the conveyor belt through the gap to be mixed with the screened fine sand, and the flow-down sand is less when the gap is small, so that the screened fine sand is not greatly influenced.

The specific working process is as follows: when the small sand screening machine designed by the invention is used, the sand screening machine is moved to a designated position before use, then the rear bracket 3 on the sand screening machine is opened, when the two clamping blocks 18 arranged on the rear bracket 3 are contacted and clamped with the two supporting blocks 17 arranged on the fixed bracket 10, as shown in figure 30, the rear end of the sand screening machine is inserted into unfiltered sand, then the driving motor 2 is started, so that the driving motor 2 drives the second synchronous wheel 15 to rotate, and the second synchronous wheel 15 rotates to drive the first synchronous wheel 14 to rotate through the first synchronous belt 13; the first synchronizing wheel 14 rotates to drive one supporting rotating shaft 11 positioned at the upper side of the two supporting rotating shafts 11 to rotate, the supporting rotating shafts 11 rotate to drive the corresponding third synchronizing wheel 39 to rotate, the third synchronizing wheel 39 rotates to drive the fourth synchronizing wheel 40 to rotate, and the fourth synchronizing wheel 40 rotates to drive one supporting rotating shaft 11 positioned at the lower side of the two supporting rotating shafts 11 to rotate; the two support rotating shafts 11 rotate to drive the two rolling wheels 4 to rotate, and the two rolling wheels 4 rotate to drive the conveyor belt 1 to rotate; the conveyer belt 1 rotates to insert one end of the conveyer belt into the sand, the unfiltered sand on the upper wall surface of the conveyer belt drives the conveyer belt to rotate together, when the sand is driven to rotate, the elastic plate 37 at the lower side of the conveyor belt 1 where the sand is located is limited by the limiting plate 6, and the screening holes 38 matched with the elastic plate on the conveyor belt 1 cannot be opened, in this state, the sand is driven by the conveyor belt 1 to move upwards, when the part of the conveyor belt 1 on which the sand is located is offset from the limiting plate 6, the limiting plate 6 loses its limiting effect on the elastic plate 37 on the lower side of the conveyor belt 1, and the elastic plate is pressed down by the sand filtered by the screening holes 38 due to its own weight, the corresponding elastic plate 37 swings downwards, and the filtered sand flows into the elastic plate 37 arranged on the upper side of the lower conveyor belt 1 through the upper conveyor belt and moves along with the lower conveyor belt; when the elastic plate 37 which is pressed and swung by the upper side conveyor belt is contacted with the rolling wheel 4 positioned at the upper end in the rotating process, the rolling wheel 4 positioned at the upper end can extrude the elastic plate 37, so that the elastic plate 37 swings and resets, and when the elastic plate 37 rotates to the lower side through the rolling wheel 4 positioned at the upper end, the elastic plate 37 is tightly attached to the inner wall of the conveyor belt 1 under the action of gravity, so that the screening holes 38 on the lower side of the conveyor belt 1 are blocked, sand cannot flow into the ground on the lower side of the conveyor belt 1 through the screening holes 38 on the lower side conveyor belt 1, so that a certain distance is kept between the filtered sand and the unfiltered sand, and the mixing is avoided; when the filtered sand flows into the upper side of the elastic plate 37 installed on the lower side conveyor belt 1, the conveyor belt 1 drives the filtered sand to move in the rotating process, and when the filtered sand on the lower side conveyor belt 1 is contacted with the triangular push block 8, as shown in fig. 30, the filtered sand is stirred to the ground on the two sides of the conveyor belt 1 under the action of the triangular push block 8, so that a filtered sand pile is easily formed and is convenient to use; the filtered coarse sand and the filtered stones are driven to the uppermost side by the conveyor belt 1 and fall to the ground from the uppermost side of the conveyor belt 1, after the sand screening machine is used for a period of time, the unfiltered sand is reduced, the sand on the conveyor belt is correspondingly reduced, at the moment, the surrounding unfiltered sand needs to be manually piled up and piled on the position where the conveyor belt 1 can convey, and the sand screening machine can also be directly moved, so that the rear end of the sand screening machine is inserted into the unfiltered sand.

When the two supporting rotating shafts 11 rotate, the two supporting rotating shafts 11 can drive the two rolling wheels 4 to rotate, the two rolling wheels 4 drive the corresponding first driving wheels 43 to rotate, and because the driving teeth 46 between the first driving wheels 43 and the second driving wheels 45 are mutually meshed and the second driving wheels 45 are fixed, the first driving wheels 43 can move along the axes of the rolling wheels 4 while rotating, the first driving wheels 43 move to drive the corresponding rolling wheels 4 to move, and the rolling wheels 4 move to extrude the corresponding return springs 42; after the extreme point of the driving tooth 46 on the first driving wheel 43 rotates to contact with the extreme point of the driving tooth 46 on the second driving wheel 45, the first driving wheel 43 continuously rotates to enable the first driving wheel 43 to reset under the action of the reset spring 42, namely, the first driving wheel 43 moves back and forth along the axis of the corresponding rolling wheel 4 while rotating, the first driving wheel 43 moves to drive the corresponding rolling wheel 4 to move, the rolling wheel 4 moves to drive the conveyor belt 1 to move, namely, the conveyor belt 1 vibrates along the axis direction of the rolling wheel 4 while rotating; the efficiency of the sand being filtered by the conveyor belt 1 is improved by the vibrations.

In summary, the following steps:

compared with the traditional sand screening machine, the small sand screening machine designed by the invention has the advantages that the size is smaller, the carrying is convenient, and when the small sand screening machine is used, the rear bracket 3 is opened and supported, so that the conveying belt 1 for filtering sand forms a certain included angle with the ground; when the sand screening machine is not used, the rear support 3 is folded, so that the sand screening machine is in a flat plate shape and is convenient to carry and transport; the small sand screening machine designed by the invention has the advantages that the rear bracket 3 is directly opened and supported when the small sand screening machine is used, other additional operations are not needed, the sand screening mechanism is convenient to operate, and meanwhile, the sand screening mechanism is convenient to arrange when in use; when the small sand screening machine is used, the lower end of the sand screening mechanism is directly inserted into sand, the sand is automatically transferred onto the conveying belt 1 through the rotation of the conveying belt 1 in the working process, the sand is filtered through the conveying belt 1, manual sand moving is not needed, and labor is saved; according to the small sand screening machine, the vibration mechanism 7 is arranged on the two supporting rotating shafts 11, so that the space below the output belt is saved, and the sand screening machine is more convenient to carry; and the vibration mechanism 7 becomes simpler and has a certain vibration effect.

Claims

1. The utility model provides a small-size laborsaving screening sand machine that interior decoration used which characterized in that: the device comprises a conveyor belt, a driving motor, a rear bracket, rolling wheels, a front bracket, a limiting plate, a vibration mechanism, a triangular push block, a supporting roller, a fixed bracket and supporting rotating shafts, wherein the upper end and the lower end of the fixed bracket are respectively provided with one supporting rotating shaft; two clamping blocks are symmetrically arranged on two sides of the upper end of the rear support frame, two supporting blocks are symmetrically arranged on two side surfaces of the upper end of the fixing frame, and the two supporting blocks and the two clamping blocks are matched in a one-to-one correspondence manner; the two rolling wheels are respectively arranged on the two supporting rotating shafts; the conveying belt is provided with screening holes which are uniformly distributed, and the conveying belt is wound on the two rolling wheels; the driving motor is arranged at the upper end of the fixing frame through the supporting ring and controls one supporting rotating shaft positioned at the upper side of the two supporting rotating shafts to rotate; the two vibration mechanisms are respectively arranged on the two supporting rotating shafts;

a plurality of elastic plates are uniformly arranged on the inner wall surface of the conveyor belt, one end of each elastic plate is fixedly arranged on the inner wall of the conveyor belt through uniformly distributed rivets, the elastic plates arranged on the conveyor belt are correspondingly matched with the screening holes formed in the conveyor belt, and each elastic plate corresponds to one row of screening holes;

the lower end of the fixed frame is fixedly provided with a limiting plate, the limiting plate is positioned in the middle of the conveyor belt, and the limiting plate is matched with an elastic plate on the inner wall of the conveyor belt;

the fixing frame is provided with a triangular push block, the triangular push block is matched with the conveyor belt, and the lower side surface of the triangular push block is tightly contacted with the upper side surface of an elastic plate arranged on the lower side part of the conveyor belt;

a plurality of supporting rollers are uniformly arranged on the lower side of the upper side part of the conveyor belt, and a plurality of supporting rollers are uniformly arranged on the lower side of the lower side part of the conveyor belt;

the vibration mechanism comprises a return spring, a first driving wheel, a first sliding sealing structure, a second driving wheel and driving teeth, wherein the return spring is respectively arranged between one end of the rolling wheel and the corresponding side surface of the fixed frame; a first sliding sealing structure is arranged between the other end of the rolling wheel and the corresponding side surface of the fixed frame, one end of the first sliding sealing structure is fixedly arranged on the rolling wheel, and the other end of the first sliding sealing structure is fixedly arranged on the fixed frame; the structure of the first driving wheel is completely the same as that of the second driving wheel, three driving teeth which are uniformly distributed in the circumferential direction are arranged on the end face of one end of the first driving wheel, the other end of the first driving wheel is fixedly arranged on the end face of the rolling wheel, one end of the second driving wheel, which is not provided with the driving teeth, is fixedly arranged on the inner end face of one side, close to the fixed frame, of the first sliding seal structure, and the driving gears on the first driving wheel and the second driving wheel are meshed with each other.

2. A small and labor-saving sand screening machine for interior decoration according to claim 1, wherein: the second synchronizing wheel is fixedly arranged on an output shaft of the driving motor, the first synchronizing wheel is fixedly arranged at one end of one supporting rotating shaft positioned at the upper side of the two supporting rotating shafts, and the first synchronizing wheel is connected with the second synchronizing wheel through a first synchronizing belt; the third synchronizing wheel is fixedly arranged at one end of one supporting rotating shaft positioned at the upper side in the two supporting rotating shafts, the fourth synchronizing wheel is fixedly arranged at one end of one supporting rotating shaft positioned at the lower side in the two supporting rotating shafts, and the third synchronizing wheel and the fourth synchronizing wheel are connected through a second synchronous belt.

3. A small and labor-saving sand screening machine for interior decoration according to claim 1, wherein: the limiting plate is fixedly arranged at the lower end of the fixing frame through two symmetrically distributed supporting bars.

4. A small and labor-saving sand screening machine for interior decoration according to claim 1, wherein: the return spring is a compression spring.

5. A small and labor-saving sand screening machine for interior decoration according to claim 1, wherein: one end of the first sliding sealing structure is fixedly arranged on the fixed frame in a welding mode, and the other end of the first sliding sealing structure is fixedly arranged on the rolling wheel in a welding mode.

6. A small and labor-saving sand screening machine for interior decoration according to claim 1, wherein: two second sliding sealing structures are symmetrically arranged between the two rolling wheels and the corresponding supporting rotating shafts respectively.

7. A small and labor-saving sand screening machine for interior decoration according to claim 1, wherein: the triangular push block is fixedly arranged on the fixed frame through the mounting block.

8. A small and labor-saving sand screening machine for interior decoration according to claim 2, wherein: the alternative scheme of the first synchronous wheel and the second synchronous wheel is chain wheels, and the two chain wheels are connected through a chain.

9. A small and labor-saving sand screening machine for interior decoration according to claim 2, wherein: the diameter of the first synchronizing wheel is three times of that of the second synchronizing wheel.

10. A small and labor-saving sand screening machine for interior decoration according to claim 1, wherein: two baffles are arranged on the upper side of the fixing frame, and a gap is reserved between each baffle and the conveying belt.