CN113000374A - Pore diameter adjustable portable silt screening plant - Google Patents

Abstract

The invention relates to the technical field of hydraulic engineering hydrology technical equipment, in particular to a portable silt screening device with an adjustable aperture, which comprises a shell, wherein the bottom of the shell is provided with a discharge opening, an upper sieve tray and a lower sieve tray are fixedly arranged in the shell, an adjusting component is arranged at the diagonal angle in the shell, the lower sieve tray is fixedly connected with the adjusting component, the lower sieve tray can move along the diagonal line in the shell, and the upper sieve tray and the lower sieve tray are internally provided with the bearing frames, the invention can sieve the silt in the field, thereby meeting the field work in the field, under the effect of accepting the frame, lower sieve dish by the centre gripping at last sieve dish with accept between the frame, make and go up the sieve dish and laminate together with lower sieve dish between, have better stability, avoided lower sieve dish because of bearing the too big deformation of silt weight, lead to appearing the gap between sieve dish and the lower sieve dish, the condition in silt enters into the gap.

Description

Pore diameter adjustable portable silt screening plant

The technical field is as follows:

the invention relates to the technical field of hydraulic engineering hydrology technical equipment, in particular to a portable silt screening device with an adjustable aperture.

Background art:

at present, the problem of silt in water bodies such as rivers, reservoirs and the like is increasingly serious, in the technical field of hydrological test, the experiment aiming at the river silt needs to carry out particle analysis on the river silt, and the particle composition of the silt is determined, which is vital to the research on the mechanism and rule of silt scouring, carrying and accumulation, the particle size distribution of the silt is a basic parameter for researching the river silt and is an indispensable important condition for knowing the movement rule of the river silt, the devices used for screening the silt at present are mostly fixed-aperture screening sieves, screening sieves with different apertures need to be manufactured or selected for screening according to the requirement of silt test, the requirement for measuring and changing the particle size of the silt under different conditions is difficult to meet, although the screening can be carried out by adopting a multi-layer screening sieve, the existing multi-layer screening sieve has certain defects because the water content of the silt is larger, the gravity is stronger, when a multilayer screening sieve is used for screening, the sieve pores of the upper layer of the sieve mesh and the sieve pores of the lower layer of the sieve mesh are in a staggered state, silt which meets the particle size is screened through the overlapped area of the sieve pores of the upper layer of the sieve mesh and the sieve pores of the lower layer of the sieve mesh, silt which does not meet the particle size can be stored on the upper layer of the sieve mesh and also can be stored in the non-overlapped area of the sieve pores of the upper layer of the sieve mesh and the sieve pores of the lower layer of the sieve mesh, and large gravity load can be brought to the lower layer of the sieve mesh to cause the lower layer of the sieve mesh to deform, so that gaps can be formed between the upper layer of the sieve mesh and the lower layer of the sieve mesh, the silt can enter the gaps between the upper layer of the sieve mesh and the lower layer of the sieve mesh, and after long-term use, the silt can be blocked in the gaps between the upper layer, the volume is large, the field work can not be satisfied, and the use is inconvenient.

The invention content is as follows:

aiming at the defects and problems in the prior art, the invention provides a portable silt screening device with an adjustable aperture, which is unique in structure and convenient to use, wherein a lower screening disc can move, the screening holes with different apertures are adjusted by being staggered and superposed with the screening holes of an upper screening disc, and the lower screening disc is clamped between the upper screening disc and a supporting frame under the action of the supporting frame, so that the situation that the lower screening disc deforms due to overlarge bearing, gaps occur between the upper screening disc and the lower screening disc, silt enters the gaps, and normal use of the lower screening disc is influenced is avoided.

The technical scheme adopted by the invention for solving the technical problems is as follows: a portable silt screening device with an adjustable aperture comprises a shell, an upper screening disc, a lower screening disc, an adjusting assembly, a chassis and a bearing frame, wherein a discharge opening is formed in the bottom of the shell, the upper screening disc is fixedly arranged in the shell, a plurality of upper screening disc screen holes are uniformly formed in the upper screening disc, the lower screening disc is arranged below the upper screening disc, a plurality of lower screening disc screen holes are uniformly formed in the lower screening disc, a jacking is arranged below the lower screening disc, positioning holes and positioning blocks are diagonally arranged in the shell and correspond to the positioning holes, a screw rod is arranged in each positioning hole, one end of the screw rod is rotatably sleeved in a rotating seat, the rotating seat is fixedly connected with the lower screening disc, an adjusting knob is fixed to the other end of the screw rod in a manner of extending out of the positioning holes; a connecting rod is sleeved in the positioning block in a sliding manner and is fixedly connected with the lower sieve tray; the bearing frame is erected in the upper sieve tray and the lower sieve tray and comprises a plurality of L-shaped frames, each L-shaped frame comprises a transverse rod piece and a longitudinal rod piece, a transverse clamping table protrudes from the outer end of each transverse rod piece, a longitudinal clamping table protrudes from the bottom end of each longitudinal rod piece, fixing holes are formed in the transverse rod piece and the longitudinal rod piece respectively, the L-shaped frames are assembled together in a butt joint mode through the fixing holes to form the bearing frame which is adaptive to the sizes of the sieve holes of the upper sieve tray and the sieve holes of the lower sieve tray, the transverse clamping tables and the longitudinal clamping tables in the bearing frame penetrate through the sieve holes of the lower sieve tray and the sieve holes of the upper sieve tray in an inclined mode, the transverse clamping tables and the longitudinal clamping tables are clamped on the upper sieve tray on the side of the sieve holes of the upper sieve tray in a matched mode; the horizontal rod piece and the longitudinal rod piece in the bearing frame are positioned below the lower sieve tray, the peripheral side of the bearing frame is fixedly connected with the peripheral side of the bottom of the upper sieve tray, and the lower sieve tray is clamped between the upper sieve tray and the bearing frame.

Furthermore, still include slope blanking piece, slope blanking piece establishes in the top week side of last sieve tray, and the bottom and the last sieve tray of slope blanking piece are fixed, and the outside end and the casing inside wall fixed connection of slope blanking piece are convenient for the material and move down.

Further, the housing is of a prismatic structure.

Further, the device also comprises a chassis which is sleeved in the discharge port at the bottom of the shell in a matching manner.

Further, the chassis is prism-shaped.

Further, still include the apron, the apron passes through the hinge to be installed on the discharge opening.

Further, the opposite angles of the top support are arranged below the lower sieve tray, the top support is fixedly connected with the inner side wall of the shell, and the lower sieve tray can move along the opposite angles on the top support.

Furthermore, a pointing mark is arranged on the adjusting knob.

Furthermore, the sieve holes of the upper sieve tray and the sieve holes of the lower sieve tray are rectangular.

The invention has the beneficial effects that:

first, the structure is unique, high durability and convenient use, portable can sieve silt in the field, has satisfied field work, no longer need use silt particle analysis instrument to carry out silt screening, and the top holds in the palm can support lower sieve tray, and lower sieve tray can move along the diagonal in the casing through screw rod and adjust knob's cooperation, and the sieve mesh in different apertures is adjusted out with the sieve mesh dislocation coincidence of last sieve tray, has satisfied the silt particle size measurement under the different situation and has changed the demand.

Secondly, under the action of the bearing frame, the lower sieve tray is clamped between the upper sieve tray and the bearing frame, so that the upper sieve tray and the lower sieve tray are attached together, the upper sieve tray and the lower sieve tray have better stability, when silt is sieved, the upper sieve tray sieve holes of the upper sieve tray and the lower sieve tray sieve holes of the lower sieve tray are in a staggered state, silt according with the particle size can be screened down through the overlapped sieve holes of the upper sieve tray sieve holes and the lower sieve tray sieve holes, when sediment that accords with the particle diameter is accumulated and is stored up at last sieve tray sieve mesh and sieve tray sieve mesh overlap region back down, through accepting the fixed stay of frame to last sieve layer and lower sieve layer, the sieve tray just can not warp because of silt weight is too big down, has avoided the sieve tray down because of bearing silt weight and warp greatly, leads to appearing the gap between sieve tray and the lower sieve tray, and silt enters into and causes the jam in the gap, influences the condition of sieve tray normal use down.

Thirdly, scales of a dial on the shell and the propelling distance of the screw are arranged in proportion, a directional mark is arranged on an adjusting knob, the fixed distance of the screw can be accurately propelled by adjusting the adjusting knob, so that sieve pores with different apertures can be adjusted, and silt on the edge side above the upper sieve tray can conveniently move downwards and cannot be accumulated on the edge side of the upper sieve tray under the action of an inclined blanking block; the chassis that the casing bottom was equipped with can be collected the silt after the screening to under the effect of apron, can carry out the shutoff with the discharge opening, avoid screening the silt after accomplishing to fall out.

Description of the drawings:

FIG. 1 is a schematic view of the present invention.

Fig. 2 is a sectional view of a portion a in fig. 1.

FIG. 3 is a top view of the present invention.

FIG. 4 is a schematic view of a usage state of the present invention.

Fig. 5 is a front view of the present invention.

Fig. 6 is a sectional view of the portion B of fig. 1.

Fig. 7 is an enlarged view of one of the screens of fig. 4.

Fig. 8 is a schematic view of the upper screen tray structure.

Fig. 9 is a schematic view of the structure of the lower sieve tray.

FIG. 10 is a view showing a state of use of the receiving frame.

Fig. 11 is a schematic view of a receiving frame structure.

FIG. 12 is a schematic view of the direction A-A' in FIG. 11.

Fig. 13 is an enlarged schematic view of a portion C in fig. 12.

Fig. 14 is a schematic view showing a connection state of the L-shaped frame.

Fig. 15 is a schematic view of an L-shaped frame structure.

FIG. 16 is a second diagram showing the usage status of the receiving frame.

Fig. 17 is a third diagram showing the use state of the receiving frame.

Fig. 18 is one of other states of use of the receiving frame.

FIG. 19 is a schematic view of B-B' in FIG. 18.

In the figure: 1-shell, 2-upper screen plate, 201-upper screen plate screen hole, 3-lower screen plate, 301-lower screen plate screen hole, 4-discharge opening, 5-base plate, 6-adjusting knob, 601-screw rod, 7-inclined blanking block, 8-top support, 9-positioning hole, 10-positioning block, 11-receiving frame, 12-overlapping screen hole, 111-longitudinal rod piece, 112-longitudinal clamping table, 113-transverse rod piece, 114-transverse clamping table, 13-fixing hole, 14-hinge, 15-cover plate, 16-rotating seat, 17-connecting rod, 18-dial and 19-screw sleeve.

The specific implementation mode is as follows:

the invention is further illustrated with reference to the following figures and examples.

Example 1, when screening silt using the existing screening device, because silt water content is large and gravity is strong, when using the screening device, the mesh of the upper screen and the mesh of the lower screen are in a dislocation state, silt conforming to the particle size is screened down through the overlapping area of the mesh of the upper screen and the mesh of the lower screen, silt not conforming to the particle size will be accumulated in the non-overlapping area of the mesh of the upper screen and the mesh of the lower screen, and large gravity load will be brought to the lower screen, causing deformation of the lower screen, so that a gap will appear between the upper screen and the lower screen, silt will enter the gap between the upper screen and the lower screen, after long-term use, silt will block the gap between the upper screen and the lower screen, causing the lower screen to slide unsmoothly, affecting the normal use of the screening screen, and the silt in the gap is troublesome to clean up, time and labor are wasted, and the use is inconvenient.

In order to solve the above problems, this embodiment provides a portable silt screening device with an adjustable aperture, as shown in fig. 1-6, which includes a casing 1, the casing 1 is of a prismatic structure, a discharge opening 4 is opened at the front side of the bottom of the casing 1, a chassis 5 is arranged at the inner bottom of the casing 1, the chassis 5 is of a prismatic shape, a silt sample after being screened can fall into the chassis 5, the chassis 5 can be taken out through the discharge opening 4, an upper screening tray 2 is arranged in the casing 1, a plurality of upper screening tray screening holes 201 are uniformly arranged on the upper screening tray 2, the upper screening holes 201 are rectangular square holes, the peripheral side of the upper screening tray 2 is fixedly connected with the inner side wall of the casing 1, a lower screening tray 3 is arranged below the upper screening tray 2 in a matching manner, lower screening holes 301 corresponding to the upper screening holes 201 are uniformly arranged on the lower screening tray 3, the lower screening holes 301 are rectangular square holes, top supports 8 are arranged at opposite angles below the lower screening tray 3, the top support 8 is fixedly connected with the inner side wall of the shell 1, and the top support 8 can support the lower sieve tray 3, so that the lower sieve tray 3 can move on the top support 8 along a diagonal line; as shown in fig. 3-4, a positioning block 10 and a positioning hole 9 are respectively arranged in the housing 1 at opposite angles, the positioning block 10 corresponds to the positioning hole 9, a connecting rod 17 is slidably sleeved in the positioning block 10, the connecting rod 17 in the positioning block 10 is fixedly connected with the lower sieve tray 3, as shown in fig. 6, a screw 601 is arranged in the positioning hole 9, one end of the screw 601 is rotatably sleeved in a rotating seat 16, the rotating seat 16 is fixedly connected with the lower sieve tray 3, the other end of the screw is fixedly provided with an adjusting knob 6 extending out of the positioning hole 9, a screw sleeve 19 corresponding to the screw 601 is arranged on the housing 1, a dial 18 corresponding to the adjusting knob 6 is arranged on the housing 1, a pointing arrow is arranged on the adjusting knob 6, the scale on the dial 18 is arranged in proportion to the pushing degree of the screw 601, when the adjusting knob 6 is screwed, the screw 601 is driven to rotate in the screw, lower sieve dish 3 is promoted by screw 601 translation, through the propulsion distance of control screw 601 in locating hole 9, just can adjust out the sieve mesh in different apertures, convenient to use.

As shown in fig. 10-15, a receiving frame 11 is arranged in the upper sieve tray 2 and the lower sieve tray 3, the receiving frame 11 is composed of a plurality of L-shaped frames, as shown in fig. 15, each L-shaped frame includes a transverse rod 113 and a longitudinal rod 111, a transverse clamping table 114 is protruded at the outer end of the transverse rod 113, a longitudinal clamping table 112 is protruded at the bottom end of the longitudinal rod 111, the transverse clamping table 114 and the inner side of the longitudinal clamping table 112 form an inner clamping groove, fixing holes 13 are respectively formed in the transverse rod 113 and the longitudinal rod 111, as shown in fig. 12-13, the transverse rods 113 and the longitudinal rod 111 are fixed together by spot welding through the fixing holes to form a receiving frame 11 corresponding to the sizes of the upper sieve tray sieve holes 201 and the lower sieve tray sieve holes 301; a transverse clamping table 114 and a longitudinal clamping table 112 in the receiving frame 11 obliquely penetrate through the upper sieve tray sieve holes 201 and the lower sieve tray sieve holes 301, inner clamping grooves formed on the inner sides of the transverse clamping table 114 and the longitudinal clamping table 112 are matched and clamped on the upper sieve tray 2 on the peripheral side of the upper sieve tray sieve holes 201, and the transverse clamping table 114 and the longitudinal clamping table 112 are fixedly connected with the upper sieve tray 2 in a spot welding mode; as shown in fig. 16-17, the transverse bars 113 and the longitudinal bars 111 in the carrier frame 11 are located below the lower screen tray 3, and the peripheral side of the carrier frame 11 is fixedly connected to the peripheral side of the bottom of the upper screen tray 2, thereby clamping the lower screen tray 3 between the upper screen tray 2 and the carrier frame 11.

When the device is used, the lower sieve tray 3 is moved to adjust the aperture of the required overlapped sieve pore 12, the adjusting knob 6 is screwed outwards to drive the screw 601 to rotate, so that the lower sieve tray 3 is pulled by the screw 601 on the jacking 8 in a translation manner, and the advancing distance of the screw 601 in the positioning hole 9 can be accurately controlled through the mutual matching of the dial 18 and the directional mark on the adjusting knob 6, so that the overlapped sieve pore 12 with the required aperture is adjusted; when the lower sieve tray 3 moves, under the action of the bearing frame 11, the lower sieve tray 3 is clamped between the upper sieve tray 2 and the bearing frame 11, the lower sieve tray 3 is attached to the upper sieve tray 2, the lower sieve tray 3 and the upper sieve tray 2 have better stability, when silt is sieved, the upper sieve tray sieve holes 201 of the upper sieve tray 2 and the lower sieve tray sieve holes 301 of the lower sieve tray 3 are in a staggered state, silt which accords with the particle size can be sieved through the overlapped sieve holes 12 of the upper sieve tray sieve holes 201 and the lower sieve tray sieve holes 301, the silt which does not accord with the particle size is accumulated in the non-overlapped area of the upper sieve tray sieve holes 201 and the lower sieve tray sieve holes 301, the upper sieve tray 2 and the lower sieve tray are fixedly supported through the bearing frame 11, the lower sieve tray 2 cannot deform due to overlarge weight of the silt, and gaps between the upper sieve tray 2 and the lower sieve tray 3 are avoided, silt enters the gap to cause blockage, and the normal use condition of the lower sieve tray 3 is influenced; when the sieve holes 201 of the lower sieve tray are overlapped with the sieve holes 301 of the upper sieve tray, the lower sieve tray 3 is in a clamped limit state between the upper sieve tray 2 and the bearing frame 11, the lower sieve tray 3 on the periphery side of the sieve holes 201 of the lower sieve tray is clamped and sleeved in an inner clamping groove formed on the inner sides of the transverse clamping table 114 and the longitudinal clamping table 112, and the lower sieve tray 3 and the upper sieve tray 2 are clamped and sleeved in the inner clamping groove together; when the lower sieve tray 3 moves along the diagonal line, the lower sieve tray 3 is no longer in the limit clamping state between the upper sieve tray 2 and the receiving frame 11, but the stability between the upper sieve tray 2 and the lower sieve tray 3 can still be ensured.

Embodiment 2, the portable silt screening apparatus with adjustable aperture in this embodiment will be described focusing on the differences from embodiment 1.

In this embodiment, as shown in fig. 18 to 19, the lengths of the transverse rod members and the longitudinal rod members in the receiving frame 11 are lengthened, the transverse clamping table 114 and the longitudinal clamping table 112 do not need to clamp each upper sieve tray sieve hole 201 in a clamping manner, inner clamping grooves formed on the inner sides of the transverse clamping table 114 and the longitudinal clamping table 112 are clamped on the upper sieve trays 2 on the periphery sides of the upper sieve tray sieve holes 201 at different positions in a staggered manner, and the transverse clamping table 114 and the longitudinal clamping table 112 are fixed to the upper sieve trays 2.

Embodiment 3, the point of difference between the portable silt screening apparatus with adjustable aperture and embodiment 1 will be mainly described.

In this embodiment, as shown in fig. 2, an inclined blanking block 7 is disposed on the upper periphery of the upper sieve tray 2, the bottom of the inclined blanking block 7 is fixedly connected to the upper sieve tray 2, and the outer end of the inclined blanking block 7 is fixedly connected to the inner side wall of the housing 1, so that the silt on the upper edge of the upper sieve tray 2 can move down conveniently under the action of the inclined blanking block 7, and cannot be accumulated on the edge of the upper sieve tray 2.

Embodiment 4, the point of difference between the portable silt screening apparatus with adjustable aperture and embodiment 1 will be mainly described.

In this embodiment, as shown in fig. 5, be equipped with apron 15 on discharge opening 4, apron 15 articulates on casing 1 through hinge 14, under the effect of apron 15, can carry out the shutoff to discharge opening 4, avoids the silt after the screening is accomplished to fall out.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and scope of the present invention are intended to be covered thereby.

Claims (9)

1. The portable silt screening device with the adjustable aperture comprises a shell, and is characterized by further comprising an upper screen disc, a lower screen disc, an adjusting component, a chassis and a bearing frame, wherein a discharge opening is formed in the bottom of the shell, the upper screen disc is fixedly arranged in the shell, a plurality of upper screen disc screen holes are uniformly formed in the upper screen disc, the lower screen disc is arranged below the upper screen disc, a plurality of lower screen disc screen holes are uniformly formed in the lower screen disc, a jacking support is arranged below the lower screen disc, positioning holes and positioning blocks are diagonally arranged in the shell and correspond to the positioning holes, screw rods are arranged in the positioning holes, one ends of the screw rods are rotatably sleeved in rotating seats, the rotating seats are fixedly connected with the lower screen disc, the positioning holes extend out of the other ends of the screw rods to be fixedly provided with adjusting knobs, and dial; a connecting rod is sleeved in the positioning block in a sliding manner and is fixedly connected with the lower sieve tray; the bearing frame is erected in the upper sieve tray and the lower sieve tray and comprises a plurality of L-shaped frames, each L-shaped frame comprises a transverse rod piece and a longitudinal rod piece, a transverse clamping table protrudes from the outer end of each transverse rod piece, a longitudinal clamping table protrudes from the bottom end of each longitudinal rod piece, fixing holes are formed in the transverse rod piece and the longitudinal rod piece respectively, the L-shaped frames are assembled together in a butt joint mode through the fixing holes to form the bearing frame which is adaptive to the sizes of the sieve holes of the upper sieve tray and the sieve holes of the lower sieve tray, the transverse clamping tables and the longitudinal clamping tables in the bearing frame penetrate through the sieve holes of the lower sieve tray and the sieve holes of the upper sieve tray in an inclined mode, the transverse clamping tables and the longitudinal clamping tables are clamped on the upper sieve tray on the side of the sieve holes of the upper sieve tray in a matched mode; the horizontal rod piece and the longitudinal rod piece in the bearing frame are positioned below the lower sieve tray, the peripheral side of the bearing frame is fixedly connected with the peripheral side of the bottom of the upper sieve tray, and the lower sieve tray is clamped between the upper sieve tray and the bearing frame.

2. The adjustable portable silt screening apparatus of claim 1, further comprising an inclined blanking block, wherein the inclined blanking block is disposed on the upper periphery of the upper screening tray, the bottom of the inclined blanking block is fixed to the upper screening tray, and the outer end of the inclined blanking block is fixedly connected to the inner wall of the housing, so as to move the material downward.

3. The adjustable aperture portable silt screening apparatus of claim 1, wherein said housing is of a prismatic configuration.

4. The adjustable aperture portable silt screening apparatus of claim 1, further comprising a base plate, said base plate is fittingly fitted in the discharge opening at the bottom of the housing.

5. The adjustable aperture portable silt screening apparatus of claim 4, wherein said base plate is prismatic.

6. The adjustable portable silt screening apparatus of claim 1, further comprising a cover plate, wherein the cover plate is mounted on the discharge opening through a hinge.

7. The adjustable portable silt screening apparatus of claim 1, wherein the top support is diagonally arranged below the lower screen tray, the top support is fixedly connected with the inner side wall of the casing, and the lower screen tray can move diagonally on the top support.

8. The adjustable portable silt screening apparatus of claim 1, wherein said adjusting knob is provided with a directional indicator.

9. The adjustable portable silt screening apparatus of claim 1, wherein the upper and lower tray sieve holes are rectangular.

Images