阅读说明：本技术 一种具有过滤装置的粮食选色机 (Grain color selector with filter equipment ) 是由 陆骏洪 于 2021-08-24 设计创作，主要内容包括：一种具有过滤装置的粮食选色机,涉及粮食分拣设备技术领域。粮食选色机包括过滤装置,过滤装置包括料斗、落料管、套筒、通风管和过滤筒；落料管与机体的进料口连通,落料管的管壁开设有第一通孔,套筒套设于落料管,并与落料管之间具有间隙,落料管的内部与套筒通过第一通孔连通；料斗的出料口与落料管连通。通风管与套筒的内部连通,通风管内安装有风机；过滤筒的一端可拆卸地连接有端盖,过滤筒的另一端具有开口,过滤筒的筒壁开设有第二通孔,过滤筒通过第二通孔与通风管连通,过滤筒内部安装有过滤网,过滤网安装于过滤筒的靠近开口的一端。其能够对进入粮食选色机的粮食进行过滤除尘,提高粮食的加工质量。(A grain color selector with a filtering device relates to the technical field of grain sorting equipment. The grain color selector comprises a filtering device, wherein the filtering device comprises a hopper, a blanking pipe, a sleeve, a ventilation pipe and a filter cylinder; the blanking pipe is communicated with the feeding hole of the machine body, a first through hole is formed in the pipe wall of the blanking pipe, the sleeve is sleeved on the blanking pipe, a gap is formed between the sleeve and the blanking pipe, and the interior of the blanking pipe is communicated with the sleeve through the first through hole; the discharge port of the hopper is communicated with the blanking pipe. The ventilation pipe is communicated with the interior of the sleeve, and a fan is arranged in the ventilation pipe; the one end detachably of cartridge filter is connected with the end cover, and the other end of cartridge filter has the opening, and the second through-hole has been seted up to the section of thick bamboo wall of cartridge filter, and the cartridge filter passes through second through-hole and ventilation pipe intercommunication, and cartridge filter internally mounted has the filter screen, and the filter screen is installed in being close to open-ended one end of cartridge filter. The grain color sorting machine can filter and remove dust of grains entering the grain color sorting machine, and improves the processing quality of the grains.)

1. A grain color selector with a filtering device is characterized by comprising the filtering device, wherein the filtering device comprises a hopper, a blanking pipe, a sleeve, a ventilating pipe and a filter cylinder;

the blanking pipe and the sleeve are both connected with a machine body of the grain color selector, the machine body is provided with a feed inlet, the blanking pipe is communicated with the feed inlet, the pipe wall of the blanking pipe is provided with a first through hole, the sleeve is sleeved on the blanking pipe and has a gap with the blanking pipe, and the interior of the blanking pipe is communicated with the sleeve through the first through hole; the discharge hole of the hopper is communicated with the blanking pipe;

the ventilation pipe is communicated with the interior of the sleeve, and a fan is arranged in the ventilation pipe;

one end of the filter cartridge is detachably connected with an end cover, the other end of the filter cartridge is provided with an opening, a second through hole is formed in the wall of the filter cartridge, the filter cartridge is communicated with the ventilation pipe through the second through hole, a filter screen is installed inside the filter cartridge, and the filter screen is installed at one end, close to the opening, of the filter cartridge.

2. The grain color selector with the filtering device according to claim 1, further comprising a pull rod, a supporting sheet and a limiting mechanism, wherein the supporting sheet is installed in the filtering cylinder and slidably connected with the inner wall of the filtering cylinder, the filtering net is fixed on the supporting sheet, the supporting sheet is provided with a third through hole, the pull rod is connected with the supporting sheet, and the limiting mechanism is used for fixing the supporting sheet in the filtering cylinder.

3. The grain color selector with the filtering device according to claim 2, wherein the outer wall of the pull rod is provided with an annular groove, the annular groove is arranged along the circumferential direction of the pull rod, the limiting mechanism comprises a limiting rod, the outer wall of the filter cartridge is provided with a guide hole, and the limiting rod penetrates through the guide hole and can abut against the annular groove.

4. The grain color selector with the filtering device as claimed in claim 3, wherein the limiting rod is sleeved with a spring.

5. The grain color selector with the filtering device according to claim 4, wherein a first limiting block and a second limiting block are arranged on the limiting rod, the first limiting block is arranged outside the filtering cylinder, the second limiting block is arranged inside the filtering cylinder, and the spring is arranged between the second limiting block and the inner wall of the filtering cylinder.

6. The grain color selector with the filtering device as claimed in any one of claims 1 to 4, further comprising an adjusting mechanism, wherein the adjusting mechanism comprises a movable plate, a connecting member and a fixing rod, the inner wall of the hopper is symmetrically provided with sliding grooves, the sliding grooves and the fixing rod are transversely arranged, the movable plate is movably connected with the sliding grooves, the fixing rod is fixed on the outer wall of the hopper, the fixing rod is provided with a plurality of adjusting grooves along the length direction thereof, the hopper is provided with a third through hole, one end of the connecting member can penetrate through the third through hole and is connected with the movable plate, and the other end of the connecting member can be inserted into the adjusting grooves.

7. The grain color selector with the filtering device according to claim 6, wherein the connecting member is L-shaped, the connecting member is movably connected with the movable plate through a protrusion, the movable plate has a concave portion, the protrusion is connected with the connecting member, the protrusion is disposed in the concave portion and can rotate relative to the concave portion, a torsion spring is sleeved outside the connecting member, one end of the torsion spring is connected with the protrusion, and the other end of the torsion spring is connected with the connecting member.

8. The grain color selecting machine with the filtering device according to any one of claims 1 to 4, further comprising a grounding device, wherein the grounding device comprises a connecting rod, a grounding rod for being embedded in the ground, an elastic piece, a propping piece and a supporting piece connected with the machine body of the grain color selecting machine;

the abutting piece is matched with the connecting rod in a sliding mode and can move along the axial direction of the connecting rod;

one end of the connecting rod is connected with the grounding rod, the other end of the connecting rod is provided with a limiting groove, the elastic piece is arranged in the limiting groove, one end of the elastic piece acts on the connecting rod, and the other end of the elastic piece acts on the abutting piece, so that the abutting piece abuts against the supporting piece.

9. The grain color selector with the filtering device according to claim 8, wherein the abutting member comprises a connecting sleeve and a clamping seat, the sleeve is sleeved on the outer wall of the connecting rod, the clamping seat is arranged at the other end of the connecting rod, and the other end of the elastic member acts on the clamping seat and abuts against the supporting sheet.

10. The grain color selector with the filtering device as claimed in claim 8, wherein the outer wall of the connecting rod is provided with a corrugated tube, one end of the corrugated tube is connected with the supporting sheet, and the other end of the corrugated tube is used for being connected with the ground.

Technical Field

The application relates to the technical field of grain sorting equipment, in particular to a grain color selecting machine with a filtering device.

Background

The color selector is equipment for automatically sorting out heterochromatic particles in particle materials by utilizing a photoelectric detection technology according to the difference of optical characteristics of the materials. Color sorters are currently used in the field of discrete materials or packaging industries, food quality inspection and classification.

The grain color selector mainly carries out color pigment sorting on grains and sorts out color-changed grains, but the existing grain color selector does not remove dust on grains when feeding the grains, and the dust content of some grains is large, so that the processing quality of the grains is influenced.

Disclosure of Invention

The application provides a grain selects look machine with filter equipment, and it can filter the dust removal to the grain that gets into grain selects look machine, improves the processingquality of grain.

The embodiment of the application is realized as follows:

the embodiment of the application provides a grain color selecting machine with a filtering device, and the grain color selecting machine comprises the filtering device, wherein the filtering device comprises a hopper, a blanking pipe, a sleeve, a ventilating pipe and a filtering barrel;

the blanking pipe and the sleeve are both connected with a machine body of the grain color selecting machine, the machine body is provided with a feed inlet, the blanking pipe is communicated with the feed inlet, the pipe wall of the blanking pipe is provided with a first through hole, the sleeve is sleeved on the blanking pipe and has a gap with the blanking pipe, and the interior of the blanking pipe is communicated with the sleeve through the first through hole; the discharge hole of the hopper is communicated with the blanking pipe;

the ventilation pipe is communicated with the interior of the sleeve, and a fan is arranged in the ventilation pipe;

the one end detachably of cartridge filter is connected with the end cover, and the other end of cartridge filter has the opening, and the second through-hole has been seted up to the section of thick bamboo wall of cartridge filter, and the cartridge filter passes through second through-hole and ventilation pipe intercommunication, and cartridge filter internally mounted has the filter screen, and the filter screen is installed in being close to open-ended one end of cartridge filter.

Further, grain selects look machine still includes pull rod, backing sheet and stop gear, but the backing sheet is installed in the cartridge filter and with the inner wall sliding connection of cartridge filter, the filter screen is fixed in the backing sheet, and the third through-hole has been seted up to the backing sheet, and the pull rod is connected with the backing sheet, and stop gear is used for being fixed in the cartridge filter with the backing sheet.

Further, the outer wall of pull rod has the annular groove, and the annular groove sets up along the circumference of pull rod, and stop gear includes the gag lever post, and the guiding hole has been seted up to the outer wall of cartridge filter, and the gag lever post is worn to locate the guiding hole and can support and hold in the annular groove.

Further, the limiting rod is sleeved with a spring.

Furthermore, a first limiting block and a second limiting block are arranged on the limiting rod, the first limiting block is arranged outside the filter cartridge, the second limiting block is arranged inside the filter cartridge, and the spring is arranged between the second limiting block and the inner wall of the filter cartridge.

Further, grain color selector still includes adjustment mechanism, and adjustment mechanism includes fly leaf, connecting piece and dead lever, and the spout has been seted up to the inner wall symmetry of hopper, and spout and dead lever transversely set up, and fly leaf and spout movably are connected, and the dead lever is fixed in the outer wall of hopper, and a plurality of adjustment tanks have been seted up along its length direction to the dead lever, and the third through-hole has been seted up to the hopper, and the one end of connecting piece can be worn to locate the third through-hole and be connected with the fly leaf, and the other end of connecting piece can be inserted and locate in the adjustment tank.

Furthermore, the connecting piece is L-shaped, the connecting piece is movably connected with the movable plate through a convex block, the movable plate is provided with a concave part, the convex block is connected with the connecting piece, the convex block is arranged in the concave part and can rotate relative to the concave part, a torsion spring is sleeved outside the connecting piece, one end of the torsion spring is connected with the convex block, and the other end of the torsion spring is connected with the connecting piece.

The grounding device comprises a connecting rod, a grounding rod, an elastic piece, a propping piece and a supporting piece, wherein the grounding rod is embedded in the ground, and the supporting piece is connected with the machine body of the grain color selector;

the abutting piece is matched with the connecting rod in a sliding way and can move along the axial direction of the connecting rod;

one end of the connecting rod is connected with the grounding rod, the other end of the connecting rod is provided with a limiting groove, the elastic piece is arranged in the limiting groove, one end of the elastic piece acts on the connecting rod, the other end of the elastic piece acts on the abutting piece, and the abutting piece abuts against the supporting piece.

Furthermore, the abutting piece comprises a connecting sleeve and a clamping seat, the sleeve is sleeved on the outer wall of the connecting rod, the clamping seat is arranged at the other end of the connecting rod, and the other end of the elastic piece acts on the clamping seat and enables the clamping seat to abut against the supporting sheet.

Furthermore, the outer wall of the connecting rod is provided with a corrugated pipe, one end of the corrugated pipe is connected with the supporting sheet, and the other end of the corrugated pipe is used for being connected with the ground.

The grain color selector with the filtering device of the embodiment of the application has the beneficial effects that:

grain falls into in the blanking pipe from the hopper, then gets into the inside processing of selecting colours of organism, grain when in the blanking pipe, because the fan has in the ventilation tube, under the effect of fan, air and dust enter into the sleeve through the first through-hole of blanking pipe in, enter into the ventilation pipe through the sleeve again, then enter into the cartridge filter in through the filter screen filter back, the dust is held back, gaseous opening part from the cartridge filter flows, through dismantling the end cover, can get rid of the dust that gets back from the cartridge filter. The grain color selector of this application embodiment has good dust removal effect, can reduce the dust content in the grain, improves the processingquality of grain.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic structural diagram of a grain color selector according to an embodiment of the present application;

FIG. 2 is an enlarged view of area A of FIG. 1;

fig. 3 is a schematic structural view of a support sheet according to an embodiment of the present application;

FIG. 4 is a schematic structural diagram of an adjustment mechanism according to an embodiment of the present application;

fig. 5 is an enlarged view of the region B in fig. 1.

Icon: 10-grain color selecting machine; 101-body; 11-a filtration device; 111-a hopper; 1111-chute; 112-a blanking pipe; 1121 — a first through hole; 113-a sleeve; 114-a ventilation tube; 1141-a fan; 115-a filter cartridge; 1151-end cap; 1152-opening; 1153-a second via; 1154-filter screen; 1155-a pull rod; 1155 a-an annular groove; 1156-support sheet; 1156 a-third via; 1157-handle; 116-a threaded tube; 117-limit mechanism; 1171-a stop bar; 1172-a spring; 1173-a first stopper; 1174-a second stopper; 118-an adjustment mechanism; 1181-a flap; 1181 a-recess; 1182-connectors; 1183-fixation rod; 1183 a-adjustment groove; 1184-bumps; 30-a grounding device; 31-the ground; 32-a ground rod; 33-a connecting rod; 331-a limiting groove; 34-a bellows; 35-a holding member; 351-a sleeve; 352-card seat; 3521-grooves; 36-an elastic member; 37-a support sheet; 371-the lug; 20-body; 21-vehicle wheel.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally found in use of products of the application, and are used only for convenience in describing the present application and for simplification of description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application.

In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The embodiment of the present application provides a grain color selector 10 with a filter device 11, please refer to fig. 1, the grain color selector 10 includes the filter device 11, the filter device 11 includes a hopper 111, a blanking pipe 112, a sleeve 113, a ventilation pipe 114 and a filter cylinder 115;

the blanking pipe 112 and the sleeve 113 are both connected with the machine body 101 of the grain color selecting machine 10, the machine body 101 is provided with a feeding hole, the blanking pipe 112 is communicated with the feeding hole, a first through hole 1121 is formed in the pipe wall of the blanking pipe 112, the sleeve 113 is sleeved on the blanking pipe 112, a gap is formed between the sleeve 113 and the blanking pipe 112, and the interior of the blanking pipe 112 is communicated with the sleeve 113 through the first through hole 1121; the discharge port of the hopper 111 communicates with the down pipe 112.

Since the discharge port of the hopper 111 is communicated with the blanking pipe 112, and the blanking pipe 112 is communicated with the feed port, the grain falls into the blanking pipe 112 from the hopper 111, and then can enter the interior of the machine body 101 for color selection.

The ventilation pipe 114 is communicated with the interior of the sleeve 113, and a fan 1141 is installed in the ventilation pipe 114; one end of the filter cartridge 115 is detachably connected with an end cap 1151, the other end of the filter cartridge 115 has an opening 1152, a second through hole 1153 is formed in the wall of the filter cartridge 115, the filter cartridge 115 is communicated with the vent pipe 114 through the second through hole 1153, a filter screen 1154 (see fig. 2) is installed inside the filter cartridge 115, and the filter screen 1154 is installed at one end of the filter cartridge 115 close to the opening 1152. Illustratively, the filter cartridge 115 is vertically disposed, the opening 1152 is disposed at the top of the filter cartridge 115, and the end cap 1151 is attached to the bottom of the filter cartridge 115.

When grain passes through in the blanking pipe 112, because fan 1141 is equipped in the ventilation pipe 114, under the effect of fan 1141, air and dust enter into sleeve 113 through the first through-hole 1121 of blanking pipe 112 in, enter into ventilation pipe 114 through sleeve 113 again, then enter into filter cylinder 115 in and filter the back through filter screen 1154, the dust is held back, gas flows out from filter cylinder 115's opening 1152 department, through dismantling end cover 1151, can get rid of the dust of holding back from filter cylinder 115. The grain color selector 10 provided by the embodiment of the application has a good dust removing effect, can reduce the dust content in grains, and improves the processing quality of the grains.

Illustratively, the vent tube 114 is connected to the filter cartridge 115 through a threaded tube 116, one end of the vent tube 114 is threadedly connected to the threaded tube 116, and the other end of the threaded tube 116 is fixedly connected to the filter cartridge 115.

Further, referring to fig. 1 and 2, in an embodiment, the grain color selector 10 further includes a pull rod 1155, a support plate 1156 and a limiting mechanism 117, the support plate 1156 is installed in the filter cartridge 115 and slidably connected to an inner wall of the filter cartridge 115, the filter screen 1154 is fixed to the support plate 1156, the support plate 1156 is provided with a third through hole 1156a (see fig. 3), the pull rod 1155 is connected to the support plate 1156, and the limiting mechanism 117 is used for fixing the support plate 1156 in the filter cartridge 115. Wherein the support plate 1156 is closer to the opening 1152 of the filter cartridge 115 than the filter screen 1154.

Filter screen 1154 is through long-time work back, can remain some dust on the filter screen 1154, when drawing backing sheet 1156 and following the high direction motion of cartridge filter 115 through pull rod 1155, backing sheet 1156 drives the motion of filter screen 1154 to can shake off partly with the dust on the filter screen 1154, thereby can avoid the dust on the filter screen 1154 to hinder filter screen 1154 and filter. Wherein, stop gear 117 can fix support piece 1156 in cartridge filter 115 to guarantee the normal operating condition of filter screen 1154. Since the support plate 1156 is also provided with a third through hole 1156a, the dust is filtered by the filter screen 1154, and then the air can flow out from the third through hole 1156a and finally flow out from the opening 1152 of the filter cartridge 115. Illustratively, the support piece 1156 is made of stainless steel.

Optionally, the end of the pull rod 1155 is provided with a handle 1157, which facilitates movement of the pull rod 1155 by the handle 1157.

Further, the outer wall of the pull rod 1155 is provided with an annular groove 1155a, the annular groove 1155a is arranged along the circumferential direction of the pull rod 1155, the limiting mechanism 117 comprises a limiting rod 1171, the outer wall of the filter cartridge 115 is provided with a guide hole, and the limiting rod 1171 penetrates through the guide hole and can be abutted to the annular groove 1155 a.

When it is desired to fix the support plate 1156 in a certain position, the stop rod 1171 is moved along the guide hole and abuts against the annular groove 1155a, and the pull rod 1155 cannot move, i.e., the support plate 1156 is fixed in a certain position. When dust on the filter screen 1154 needs to be cleaned, the limiting rod 1171 is moved along the guide hole, so that one end of the limiting rod 1171 is separated from the annular groove 1155a, and the pull rod 1155 can move along the axial direction of the filter cartridge 115 without being blocked by the limiting rod 1171.

Optionally, the stop rod 1171 is sleeved with a spring 1172, and the action of the spring 1172 can enable the stop rod 1171 to be more stably abutted against the annular groove 1155 a.

Further, a first limiting block 1173 and a second limiting block 1174 are arranged on the limiting rod 1171, the first limiting block 1173 is arranged outside the filter cylinder 115, the second limiting block 1174 is arranged inside the filter cylinder 115, and the spring 1172 is arranged between the second limiting block 1174 and the inner wall of the filter cylinder 115.

Through the effect of first stopper 1173, can avoid the gag lever post 1171 to move to the cartridge filter 115 in all well, through the effect of second stopper 1174, can avoid the gag lever post 1171 to move to the cartridge filter 115 outside from the cartridge filter 115 in the cartridge filter 115 is complete well.

Further, the grain color selector 10 of this embodiment of the application further includes an adjusting mechanism 118, please refer to fig. 4, the adjusting mechanism 118 includes a movable plate 1181, a connecting member 1182 and a fixing rod 1183, the inner wall of the hopper 111 is symmetrically provided with a chute 1111, the chute 1111 and the fixing rod 1183 are transversely disposed, the movable plate 1181 is movably connected with the chute 1111, the fixing rod 1183 is fixed to the outer wall of the hopper 111, the fixing rod 1183 is provided with a plurality of adjusting grooves 1183a along the length direction thereof, the hopper 111 is provided with a third through hole 1156a, one end of the connecting member 1182 can be inserted into the third through hole 1156a to be connected with the movable plate 1181, and the other end of the connecting member 1182 can be inserted into the adjusting groove 1183 a.

The movable plate 1181 is driven to move along the sliding groove 1111 by the movement of the connecting member 1182, and because the sliding groove 1111 is transversely arranged, the movable plate 1181 can adjust the amount of the grain entering the blanking barrel from the hopper 111 in the transverse movement process, and the other end of the connecting member 1182 is inserted into different adjusting grooves 1183a, so that the movable plate 1181 can be fixed at different positions.

Illustratively, the connecting member 1182 is L-shaped, the connecting member 1182 is movably connected to the movable plate 1181 through a bump 1184, the movable plate 1181 has a concave portion 1181a, the bump 1184 is connected to the connecting member 1182, the bump 1184 is disposed in the concave portion 1181a and can rotate relative to the concave portion 1181a, a torsion spring is disposed around the connecting member 1182, one end of the torsion spring is connected to the bump 1184, and the other end of the torsion spring is connected to the connecting member 1182.

When one end of the connecting member 1182 needs to be inserted into the adjusting groove 1183a, the connecting member 1182 is rotated, so that the protrusion 1184 rotates in the groove, and when the one end of the connecting member 1182 rotates into the adjusting groove 1183a, the movable plate 1181 can be fixed. Wherein the acting force of the torsion spring can make the connecting member 1182 be better fixed in the adjusting groove 1183 a.

When the position of the movable plate 1181 needs to be adjusted, the connecting member 1182 of the adjusting groove 1183a is rotated to separate from the adjusting groove 1183a, and then the connecting member 1182 is pulled to move, so as to drive the movable plate 1181 to move.

Further, the grain color selector 10 further includes a grounding device 30, referring to fig. 1 and 5, the grounding device 30 includes a connecting rod 33, a grounding rod 32 embedded in the ground 31, an elastic member 36, a supporting member 35, and a supporting sheet 37 connected to the body 20 of the grain color selector 10.

The abutting piece 35 is matched with the connecting rod 33 in a sliding way and can move along the axial direction of the connecting rod 33; one end of the connecting rod 33 is connected with the grounding rod 32, one end of the elastic element 36 acts on the connecting rod 33, the other end of the elastic element 36 acts on the abutting element 35, the abutting element 35 abuts against the supporting sheet 37, the other end of the connecting rod 33 is provided with a limiting groove 331, and the elastic element 36 is arranged in the limiting groove 331. Optionally, the resilient member 36 is a spring.

In the grounding device 30 of the embodiment of the present application, since the machine body 20 is connected to the supporting sheet 37, the abutting member 35 abuts against the supporting sheet 37 and is slidably matched with the connecting rod 33, the connecting rod 33 is connected to the grounding rod 32, and the grounding rod 32 is used to be embedded in the ground 31, when the grain color selecting machine 10 leaks electricity, the current can sequentially pass through the machine body 20, the supporting sheet 37, the abutting member 35, the connecting rod 33 and the grounding rod 32, and the current is led to the ground 31. The elastic piece 36 is arranged in the limiting groove 331 of the connecting rod 33, the radial movement of the elastic piece 36 is limited, and the abutting piece 35 abuts against the supporting sheet 37 under the action of the elastic piece 36, so that the abutting piece 35 is stably connected with the supporting sheet 37, the circuit breaking state cannot occur, the grounding protection effect is good, and the safety of the grain color selector 10 is improved.

Further, a sleeve 351 and a clamping seat 352 are connected, the sleeve 351 is sleeved on the outer wall of the connecting rod 33, the clamping seat 352 is arranged at the other end of the connecting rod 33, the other end of the elastic member 36 acts on the clamping seat 352, and the clamping seat 352 is abutted against the supporting sheet 37.

The elastic piece 36 acts on the clamping seat 352, so that the clamping seat 352 is stably connected with the supporting sheet 37, an open circuit state cannot occur, the sleeve 351 is sleeved on the outer wall of the connecting rod 33, the sleeve 351 is not easy to open circuit with the connecting rod 33, the grounding protection effect is further improved, and the safety of the grain color selecting machine 10 is further improved.

Illustratively, the supporting piece 37 includes a protrusion 371, and the clamping seat 352 has a groove 3521 capable of being matched with the protrusion 371, and the protrusion 371 is disposed in the groove 3521.

Through the cooperation of the protrusion 371 and the groove 3521, the connection between the card seat 352 and the support sheet 37 is more stable, the occurrence of the open circuit state is further reduced, and the grounding protection effect is further improved.

Further, in a possible embodiment, the outer wall of the connecting rod 33 is provided with a bellows 34, one end of the bellows 34 is connected with the support sheet 37, and the other end is used for connecting with the ground 31.

The bellows 34 has a buffering function when the body 20 vibrates. Optionally, the material of the bellows 34 is rubber.

The embodiment further provides a grain color selector 10, which comprises a machine body 20 and the grounding device 30, wherein the supporting sheet 37 is connected with the machine body 20.

Optionally, wheels 21 are provided at the bottom of the body 20, the wheels 21 being adapted to contact the ground 31. Due to the arrangement of the wheels 21, the grain color selector 10 is more convenient to move.

To sum up, the grain color selecting machine 10 with the filtering device 11 of the embodiment of the present application, grain can fall into the blanking pipe 112 from the hopper 111, then enter into the inside color selecting treatment of the machine body 101, when grain is in the blanking pipe 112, because the ventilation pipe 114 is provided with the fan 1141 therein, under the effect of the fan 1141, air and dust enter into the sleeve 113 through the first through hole 1121 of the blanking pipe 112, enter into the ventilation pipe 114 through the sleeve 113, then enter into the filter cartridge 115 and filter through the filter screen 1154, the dust is intercepted, gas flows out from the opening 1152 of the filter cartridge 115, and through detaching the end cover 1151, the intercepted dust can be removed from the filter cartridge 115. The grain color selector 10 has a good dust removing effect, can reduce the dust content in grains, and improves the processing quality of the grains.

In addition, because the machine body 20 is connected with the supporting sheet 37, the abutting piece 35 abuts against the supporting sheet 37 and is slidably matched with the connecting rod 33, the connecting rod 33 is connected with the grounding rod 32, and the grounding rod 32 is pre-embedded in the ground 31, when the grain color selector 10 leaks electricity, the current can sequentially pass through the machine body 20, the supporting sheet 37, the abutting piece 35, the connecting rod 33 and the grounding rod 32, and the current is led to the ground 31. Because the abutting piece 35 abuts against the supporting piece 37 under the action of the elastic piece 36, the abutting piece 35 and the supporting piece 37 are stably connected, a circuit breaking state cannot occur, a good grounding protection effect is achieved, and the safety of the grain color selector 10 is improved.

The foregoing is merely exemplary of the present application and is not intended to limit the present application, which may be modified or varied by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.