CN107716270A

CN107716270A - A kind of sand sieving machine

Info

Publication number: CN107716270A
Application number: CN201711031637.7A
Authority: CN
Inventors: 赵顺豪
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-10-27
Filing date: 2017-10-27
Publication date: 2018-02-23

Abstract

The invention discloses a kind of sand sieving machine, the both sides of the block have been fixedly connected with brute spring, bottom on the outside of first arbor is socketed with projection, the bottom of the contiguous block is fixedly connected with sieve bucket, the bottom thread of the sieve bucket is connected with mesh jacket, the right side of the sieve column bottom, which is run through, is connected with sieve plate, the right side of the rotating roller is socketed with helical blade through dividing plate, equidistant regulation is connected with five and sweeps plate between the helical blade, the upper lateral part of frame inner chamber two has been fixedly connected with blower fan, the both sides of the hothouse inner cavity top have been fixedly connected with heat block, solar panel is provided with the outside of the frame, the both sides of the power supply box cavity are overlapped with battery.The present invention passes through the first motor, sieve bucket and mesh jacket, projection, telescopic mast, brute spring, heat block, blower fan, helical blade, the use for sweeping plate, sieve plate, solar panel and battery so that this sand sieving machine is practical.

Description

A kind of sand sieving machine

Technical field

The present invention relates to Architectural Equipment technical field, specially a kind of sand sieving machine.

Background technology

It is well known that the indispensable construction raw material of the realm of building construction, in general sand drag for from korneforos during sand Need to come into operation after drying and screening after going out, sand directly can be placed in outdoor quick-fried Sai by sand drying , and the screening of sand then needs relevant device to complete.

The husky method of conventional screen be people by husky network planning surely after, sand is bit by bit manually launched into sieve using spade On the net, fine sand can be fallen into collection device through screen cloth, and the stone and larger impurity in sand can be stopped and stopped by screen cloth On the surface of screen cloth, so not only wasted time and energy using artificial sieve sand bit by bit but also sieve that husky effect is bad, and this just leads The problem of causing traditional sieve sand mode poor practicability occurs.

The content of the invention

It is an object of the invention to provide a kind of sand sieving machine, possess the advantages of practical, solve traditional sieve sand side The problem of formula poor practicability.

To achieve the above object, the present invention provides following technical scheme：A kind of sand sieving machine, including frame, in the frame The upside of chamber is equidistant to be fixedly connected with four open tubular columns, and the inner chamber of four open tubular columns, which is run through, is connected with telescopic mast, described to stretch Right part on the outside of contracting post is socketed with block, and the both sides of the block have been fixedly connected with brute spring, consolidated between four telescopic masts Surely it is connected with support plate, through being connected with support frame, the inner chamber of support frame as described above is fixedly connected with for the middle part of the support plate One motor, the bottom of first motor are connected with the first arbor, and the bottom on the outside of first arbor is socketed with projection, described The bottom of first arbor is socketed with contiguous block through support frame, and the bottom of the contiguous block is fixedly connected with sieve bucket, the sieve bucket Bottom thread be connected with mesh jacket, be fixedly connected with sieve post on the downside of the frame inner chamber, opened in the middle part of the sieve column top Provided with first charging aperture, the right side of the sieve column bottom is fixedly connected with through sieve plate is connected with the left of the sieve post inner chamber Dividing plate, through being connected with rotating roller, the left side of the rotating roller is fixedly connected with the through dividing plate regulation for the middle part of the dividing plate Two arbors, the second motor are connected with the left of second arbor, the right side of the rotating roller is socketed with helical-blade through dividing plate Piece, equidistant regulation is connected with five and sweeps plate between the helical blade, and the upper lateral part of frame inner chamber two has been fixedly connected with Blower fan, the side of the blower fan are communicated with blast pipe, and one end of two blast pipes is communicated with hothouse, the hothouse inner chamber The both sides at top have been fixedly connected with heat block, and solar panel is provided with the outside of the frame, the frame top Left side is fixedly connected with power supply box, and the both sides of the power supply box cavity are overlapped with battery.

Preferably, the both sides of the bottom of the frame have been fixedly connected with supporting plate.

Preferably, the right side inside the support plate, which is run through, is connected with feed pipe, and the top of feed pipe connects through frame It is connected with feed well.

Preferably, the both sides at the top of the sieve bucket offer second charging aperture, and second charging aperture is located at feed pipe Underface.

Preferably, the right side opening of the sieve post is provided with the second blow tank, and the right side of the second blow tank through frame and is prolonged Extend the outside of frame.

Preferably, the inner side bonding rubber sleeve of the solar panel, and the outer wall of the inner chamber of rubber sleeve and frame Through connection.

Preferably, it is fixedly connected with baffle in the middle part of the frame inner chamber, and baffle is shaped as infundibulate.

Preferably, the second charging aperture is located at the lower section of baffle, and the diameter of second charging aperture and water conservancy diversion intracoelomic cavity The diameter of bottom is equal.

Preferably, the diameter of open tubular column inner chamber both sides is less than the diameter of block, the both sides point of the open tubular column inner chamber One end not with two brute springs is fixedly connected.

Compared with prior art, beneficial effects of the present invention are as follows：

1st, the use that the present invention passes through the first motor, sieve bucket and mesh jacket so that start the first motor, the first motor passes through First arbor drives contiguous block to rotate, and contiguous block can drive screen cloth to rotate, and during screen cloth high-speed rotation, sieve the sand in bucket Sub and larger impurity can follow screen cloth high-speed rotation and subject to centrifugal forces, and sand can be got rid of by after centrifugal action Go out, and larger impurity can be stopped by sieve bucket, and quickly screening can be so carried out once to sand, instead of conventional screen sand side The mode that formula is manually launched, there is time saving and energy saving effect.

2nd, the use that the present invention passes through projection, telescopic mast and brute spring so that when the first motor rotates, the first motor Projection is driven to rotate by first rotating shaft, the projection of high-speed rotation is subject to centrifugal forces to be sieved by arbor and motor driven Bucket and support plate are swung, and support plate can compress brute spring by telescopic mast, and swing of the brute spring to sieve bucket carries out certain It is more steady that damping can allow sieve bucket to swing, and pendulum is also suffered from while now sieving the sand in bucket and impurity by centrifugal force Inertia force caused by dynamic, advantageously quickly throws away in sand, improves the efficiency of primary screening.

3rd, the present invention passes through the use of heat block and blower fan so that when sieving bucket rotation, while starts two blower fans and right Heat block is powered, and heat block electrified regulation lifts rapidly the air themperature in hothouse, and now blower fan utilizes blast pipe High-temperature gas in hothouse is pumped into and sprays to sieve bucket, the high speed hot blast that the sieve bucket of rotation is blown by both direction, sieves bucket Interior sand can be by efficient drying, and the sand after drying is lighter, is more easy to be thrown out of sieve bucket, not only increases primary screening Efficiency.

4th, the present invention by helical blade, sweep the use of plate and sieve plate so that start the second motor, the second motor passes through the Two arbors drive rotating roller to rotate, and rotating roller drives helical blade to rotate, and helical blade drives sand and smaller impurity to the right It can be driven while motion and sweep the left circular motion of plate, the inner chamber rolling of sand and smaller impurity in sieve bucket can be driven by sweeping plate, now Sand can be fallen into the first blow tank by sieve plate, and impurity can not pass through sieve plate to be transported to the right always by helical blade promotion Move and discharge sieve bucket from the second blow tank, postsearch screening so is carried out to sand, effectively improves the effect of sieve sand.

5th, the use that the present invention passes through solar panel and battery so that when using this sand sieving machine out of doors, sun Solar panel on the outside of light irradiation rubber sleeve, solar panel can convert light energy into electric energy and battery carried out Charging, does not need other external power supplys, more energy saving so, it is achieved thereby that this sand sieving machine is real when running this equipment With the strong function of property.

Brief description of the drawings

Fig. 1 is schematic structural view of the invention；

Fig. 2 is enlarged drawing at A in Fig. 1 of the present invention；

Fig. 3 is the schematic diagram of second charging aperture of the present invention.

In figure：1 frame, 2 open tubular columns, 3 telescopic masts, 4 blocks, 5 brute springs, 6 support plates, 7 support frames, 8 first motors, 9 first arbors, 10 projections, 11 contiguous blocks, 12 sieve buckets, 13 mesh jackets, 14 sieve posts, 15 first charging apertures, 16 sieve plates, 17 dividing plates, Plate, 22 blower fans, 23 blast pipes, 24 hothouses, 25 heat blocks, 26 are swept in 18 second arbors, 19 second motors, 20 helical blades, 21 Solar panel, 27 power supply boxs, 28 batteries, 29 supporting plates, 30 feed pipes, 31 feed wells, 32 second charging apertures, 33 second Blow tank, 34 rubber sleeves, 35 baffles, 36 first blow tanks, 37 rotating rollers.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made Embodiment, belong to the scope of protection of the invention.

Fig. 1-3 are referred to, the present invention provides a kind of technical scheme：A kind of sand sieving machine, including frame 1, the two of the bottom of frame 1 Side has been fixedly connected with supporting plate 29, and the upside of the inner chamber of frame 1 is equidistant to be fixedly connected with four open tubular columns 2, the inner chamber of open tubular column 2 The diameter of both sides is less than the diameter of block 4, and the one end of the both sides of the inner chamber of open tubular column 2 respectively with two brute springs 5 is fixedly connected, Pass through the use of block 4 so that when telescopic mast 3 slidably reciprocates in the inner chamber of open tubular column 2, block 4 can be to the cunning of telescopic mast 3 Dynamic distance carries out certain limitation, effectively prevents the sliding distance of telescopic mast 3 is excessive to cause telescopic mast 3 to depart from open tubular column 2, so as to protect Hinder the present apparatus can normal operation, the inner chambers of four open tubular columns 2 is through being connected with telescopic mast 3, the right part set in the outside of telescopic mast 3 Block 4 is connected to, the both sides of block 4 have been fixedly connected with brute spring 5, support plate 6 are fixedly connected between four telescopic masts 3, Right side inside support plate 6, which is run through, is connected with feed pipe 30, and the top of feed pipe 30 is communicated with feed well 31 through frame 1, Passing through the use of support plate 6 so that support plate 6 is cylinder plate, and support plate 6 offers circular groove with the junction of feed pipe 30, this Sample support plate 6 is not only able to provide support frame 7 good support, and feed pipe 30 will not be damaged during rocking, So as to improve the practicality of this sand sieving machine, through support frame 7 is connected with, the inner chamber of support frame 7, which is fixed, to be connected at the middle part of support plate 6 The first motor 8 is connected to, the bottom of the first motor 8 is connected with the first arbor 9, and the bottom in the outside of the first arbor 9 is socketed with projection 10, Pass through the use of projection 10, telescopic mast 3 and brute spring 5 so that when the first motor 8 rotates, the first motor 8 passes through first turn Axle drives projection 10 to rotate, and the projection 10 of high-speed rotation is subject to centrifugal forces to sieve the He of bucket 12 by arbor and motor driven Support plate 6 is swung, and support plate 6 can compress brute spring 5 by telescopic mast 3, and brute spring 5 carries out certain to the swing for sieving bucket 12 Damping that sieve bucket 12 can be allowed to swing is more steady, can also while now sieving the sand in bucket 12 and impurity by centrifugal force Caused inertia force is swung, is advantageously quickly thrown away in sand, improves the efficiency of primary screening, the first arbor 9 Bottom is socketed with contiguous block 11 through support frame 7, and the bottom of contiguous block 11 is fixedly connected with sieve bucket 12, the both sides at the top of sieve bucket 12 Second charging aperture 32 is offered, and second charging aperture 32 is located at the underface of feed pipe 30, the bottom thread connection of sieve bucket 12 There is mesh jacket 13, pass through the use of mesh jacket 13 so that the bottom of mesh jacket 13 is taper, so when sieve bucket 12 stops operating it Afterwards, sand is thrown out of sieve bucket 12, and larger impurity is stopped and can concentrated on along the inclined-plane of mesh jacket 13 netted by sieve bucket 12 The bottom of 13 inner chambers is covered, mesh jacket 13 can be rotated and from the 12 times taking-ups of sieve bucket by people, then can be to the inner side of mesh jacket 13 Larger impurity cleared up, so as to improve the practicality of this sand sieving machine, pass through the first motor 8, sieve bucket 12 and mesh jacket 13 Use so that start the first motor 8, the first motor 8 drives contiguous block 11 to rotate by the first arbor 9, and contiguous block 11 can band Dynamic screen cloth rotates, and during screen cloth high-speed rotation, sieving the sand in bucket 12 and larger impurity can follow screen cloth to turn at a high speed Dynamic and subject to centrifugal forces, sand can be thrown out of by after centrifugal action, and larger impurity can be stopped by sieve bucket 12, Quickly screening can be so carried out once to sand, the mode that conventional screen sand mode is manually launched is instead of, there is time saving province The effect of power, is fixedly connected with sieve post 14 on the downside of the inner chamber of frame 1, and the right side opening of sieve post 14 is provided with the second blow tank 33, and the The right side of two blow tanks 33 is through frame 1 and extends to the outside of frame 1, and the middle part at the top of sieve post 14 offers first charging aperture 15, the right side of sieve post 14 bottom passes through the use of sieve plate 16 through sieve plate 16 is connected with so that when the sand by primary screening When sieving the inner chamber upset of bucket 12, sand can be fallen into the second blow tank 33 through sieve plate 16, and less impurity can not pass through Sieve plate 16, it can be promoted to the right by helical blade 20 until discharge sieve bucket 12, it is secondary so as to be carried out using sieve plate 16 to sand Screening, it is possible to increase the effect of sand screening, sieve post 14 are fixedly connected with dividing plate 17 on the left of inner chamber, and the middle part of dividing plate 17 is run through Rotating roller 37 is connected with, the left side of rotating roller 37 is fixedly connected with the second arbor 18 through the regulation of dividing plate 17, the second arbor 18 Left side is connected with the second motor 19, and the right side of rotating roller 37 is socketed with helical blade 20 through dividing plate 17, between helical blade 20 Equidistant regulation is connected with five and sweeps plate 21, by helical blade 20, sweeps the use of plate 21 and sieve plate 16 so that start the second electricity Machine 19, the second motor 19 drive rotating roller 37 to rotate by the second arbor 18, and rotating roller 37 drives helical blade 20 to rotate, spiral Blade 20 can be driven while driving sand and the lateral movement to the right of smaller impurity and sweep 21 left circular motion of plate, and sand can be driven by sweeping plate 21 Sub and smaller impurity is rolled in the inner chamber of sieve bucket 12, and now sand can be fallen into the first blow tank 36 by sieve plate 16, and impurity Sieve plate 16 can not be passed through to be promoted always lateral movement to the right by helical blade 20 and discharge sieve bucket 12 from the second blow tank 33, so Postsearch screening is carried out to sand, effectively improves the husky effect of sieve, the upper lateral part of 1 inner chamber of frame two has been fixedly connected with blower fan 22, wind The side of machine 22 is communicated with blast pipe 23, and one end of two blast pipes 23 is communicated with hothouse 24, the inner cavity top of hothouse 24 Both sides be fixedly connected with heat block 25, pass through the use of heat block 25 and blower fan 22 so that when sieve bucket 12 rotate when, simultaneously Start two blower fans 22 and heat block 25 is powered, the electrified regulation of heat block 25 is rapid by the air themperature in hothouse 24 Lifting, now the high-temperature gas in hothouse 24 is pumped into and sprayed to using blast pipe 23 by blower fan 22 sieves bucket 12, the sieve bucket of rotation The 12 high speed hot blasts blown by both direction, the sand sieved in bucket 12 can be by efficient drying, and the sand after drying is more Gently, it is more easy to be thrown out of sieve bucket 12, not only increases the efficiency of primary screening, frame 1 is fixedly connected with baffle in the middle part of inner chamber 35, and baffle 35 is shaped as infundibulate, second charging aperture 32 is located at the lower section of baffle 35, and second charging aperture 32 is straight Footpath is equal with the diameter of the intracavity bottom of baffle 35, and the outside of frame 1 is provided with solar panel 26, solar panel 26 Inner side bonding rubber sleeve 34, and the outer wall of the inner chamber of rubber sleeve 34 and frame 1 passes through making for rubber sleeve 34 through connection With so that when this sand sieving machine is run, the first motor 8, the second motor 19 and sieve bucket 12, which rotate and swung, can all produce vibration, And rubber sleeve 34 can reduce the vibration that frame 1 is delivered on solar panel 26, effectively prevent solar panel 26 by Occur to the impaired problem of overvibration, so as to improve the practical function of this sand sieving machine, the left side at the top of frame 1 is consolidated Surely power supply box 27 is connected with, the both sides of the inner chamber of power supply box 27 are overlapped with battery 28, pass through solar panel 26 and electric power storage The use in pond 28 so that when using this sand sieving machine out of doors, the solar panel 26 in the outside of sunlight rubber sleeve 34, too Positive energy cell panel 26 can convert light energy into electric energy and battery 28 is charged, need not so when running this equipment Other external power supplys, more energy saving, it is achieved thereby that the function that this sand sieving machine is practical.

In use, sand drops through feed pipe 30 from feed well 31 and second charging aperture 32 is entered in sieve bucket 12, make User starts the first motor 8 and blower fan 22 and heat block 25 is powered, and the first motor 8 drives contiguous block 11 by the first arbor 9 Rotating, contiguous block 11 can drive screen cloth to rotate, and during screen cloth high-speed rotation, sieve the sand in bucket 12 and larger impurity Screen cloth high-speed rotation and subject to centrifugal forces can be followed, sand can be thrown out of by after centrifugal action, and larger miscellaneous Matter can be stopped by sieve bucket 12, and quickly screening can be so carried out once to sand, and can be driven while the rotation of the first motor 8 Projection 10 rotates, and the projection 10 of high-speed rotation is subject to centrifugal forces to sieve bucket 12 and support plate by arbor and motor driven 6 swing, and support plate 6 can compress brute spring 5 by telescopic mast 3, and swing of the brute spring 5 to sieve bucket 12 carries out certain damping Sieve bucket 12 can be allowed to swing more steady, pendulum is also suffered from while now sieving the sand in bucket 12 and impurity by centrifugal force Inertia force caused by dynamic, advantageously quickly throws away, at the same time the electrified regulation of heat block 25 is by hothouse 24 in sand Air themperature is lifted rapidly, and now the high-temperature gas in hothouse 24 is pumped into and sprays to sieve bucket by blower fan 22 using blast pipe 23 12, the high speed hot blast that the sieve bucket 12 of rotation is blown by both direction, the sand sieved in bucket 12 can be by efficient drying, and dries Sand afterwards is lighter, is more easy to be thrown out of sieve bucket 12, is thrown out of by the sand of primary screening after sieve bucket 12 along baffle 35 inclined-plane slides and entered from first charging aperture 15 in sieve post 14, now starts the second motor 19, the second motor 19 passes through Second arbor 18 drive rotating roller 37 rotate, rotating roller 37 drive helical blade 20 rotate, helical blade 20 drive sand and compared with It can be driven while the lateral movement to the right of small impurity and sweep 21 left circular motion of plate, sand and smaller impurity can be driven in sieve bucket by sweeping plate 21 12 inner chamber rolling, now sand can be fallen into the first blow tank 36 by sieve plate 16, and impurity can not pass through sieve plate 16 can quilt Helical blade 20 promotes always lateral movement to the right and discharges sieve bucket 12 from the second blow tank 33, so carries out secondary sieve to sand Choosing, and when using this sand sieving machine out of doors, the solar panel 26 in the outside of sunlight rubber sleeve 34, solar panel 26 can convert light energy into electric energy and battery 28 is charged, and not need other external electricity when running this equipment so Source, more energy saving.

In summary, the sand sieving machine, the first motor 8, sieve bucket 12 and mesh jacket 13, projection 10, telescopic mast 3, strength are passed through Spring 5, heat block 25, blower fan 22, helical blade 20, sweep making for plate 21, sieve plate 16, solar panel 26 and battery 28 With solving the problems, such as traditional sieve sand mode poor practicability.

It should be noted that herein, such as first and second or the like relational terms are used merely to a reality Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include Intrinsic key element.In the absence of more restrictions, by sentence " an including key element limited, it is not excluded that including Other identical element also be present in the process of the key element, method, article or equipment ".

Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is defined by the appended.

Claims

1. a kind of sand sieving machine, including frame (1), it is characterised in that：The upside of frame (1) inner chamber is equidistant to be fixedly connected with Four open tubular columns (2), the inner chamber of four open tubular columns (2), which is run through, is connected with telescopic mast (3), the right side on the outside of the telescopic mast (3) Portion is socketed with block (4), and the both sides of the block (4) have been fixedly connected with brute spring (5), consolidated between four telescopic masts (3) Surely support plate (6) is connected with, the middle part of the support plate (6), which is run through, is connected with support frame (7), the inner chamber of support frame as described above (7) The first motor (8) is fixedly connected with, the bottom of first motor (8) is connected with the first arbor (9), first arbor (9) The bottom in outside is socketed with projection (10), and the bottom of first arbor (9) is socketed with contiguous block (11) through support frame (7), The bottom of the contiguous block (11) is fixedly connected with sieve bucket (12), and the bottom thread of the sieve bucket (12) is connected with mesh jacket (13) sieve post (14), is fixedly connected with the downside of frame (1) inner chamber, the middle part sieved at the top of post (14) offers first Charging aperture (15), the right side of described sieve post (14) bottom are consolidated through sieve plate (16), the left side of described sieve post (14) inner chamber is connected with Surely dividing plate (17) is connected with, the middle part of the dividing plate (17), which is run through, is connected with rotating roller (37), the left side of the rotating roller (37) The second arbor (18) is fixedly connected with through dividing plate (17) regulation, the second motor is connected with the left of second arbor (18) (19), the right side of the rotating roller (37) is socketed with helical blade (20) through dividing plate (17), between the helical blade (20) Equidistant regulation is connected with five and sweeps plate (21), and the upper lateral part of frame (1) inner chamber two has been fixedly connected with blower fan (22), described The side of blower fan (22) is communicated with blast pipe (23), and one end of two blast pipes (23) is communicated with hothouse (24), described dry The both sides of dry room (24) inner cavity top have been fixedly connected with heat block (25), and solar-electricity is provided with the outside of the frame (1) Pond plate (26), the left side at the top of the frame (1) are fixedly connected with power supply box (27), and the both sides of power supply box (27) inner chamber are equal It is overlapped with battery (28).

A kind of 2. sand sieving machine according to claim 1, it is characterised in that：The both sides of frame (1) bottom are fixed to be connected Supporting plate (29) is connected to, and the first blow tank (36) is communicated with the middle part of frame (1) bottom.

A kind of 3. sand sieving machine according to claim 1, it is characterised in that：The internal right side of the support plate (6) is through company Feed pipe (30) is connected to, and the top of feed pipe (30) is communicated with feed well (31) through frame (1).

A kind of 4. sand sieving machine according to claim 1, it is characterised in that：Both sides at the top of the sieve bucket (12) offer Second charging aperture (32), and second charging aperture (32) is located at the underface of feed pipe (30).

A kind of 5. sand sieving machine according to claim 1, it is characterised in that：The right side opening of the sieve post (14) goes out provided with second Hopper (33), and the right side of the second blow tank (33) through frame (1) and extends to the outside of frame (1).

A kind of 6. sand sieving machine according to claim 1, it is characterised in that：The interior side bonds of the solar panel (26) Rubber sleeve (34), and the inner chamber of rubber sleeve (34) and the outer wall of frame (1) run through connection.

A kind of 7. sand sieving machine according to claim 1, it is characterised in that：It is fixedly connected in the middle part of frame (1) inner chamber There is a baffle (35), and baffle (35) is shaped as infundibulate.

A kind of 8. sand sieving machine according to claim 4, it is characterised in that：The second charging aperture (32) is located at baffle (35) lower section, and the diameter of second charging aperture (32) is equal with the diameter of baffle (35) intracavity bottom.

A kind of 9. sand sieving machine according to claim 1, it is characterised in that：The diameter of open tubular column (2) the inner chamber both sides is small Diameter in block (4), the one end of the both sides of open tubular column (2) inner chamber respectively with two brute springs (5) are fixedly connected.