CN217844664U - Drying tower device capable of drying grains in batches - Google Patents

Abstract

The utility model provides a drying tower device capable of drying grains in batches, which relates to the technical field of grain crop processing equipment and aims to solve the problem that the drying efficiency of the drying tower device is reduced because the original drying tower device cannot carry out quantitative and batch rotary transmission on the grains needing drying operation, thereby influencing the drying effect of the drying tower device; the feeding extension plate is correspondingly installed on the outer end face of the right side of the feeding cover cylinder and is of a U-shaped plate structure. The utility model discloses in because the power rod can drive the synchronous revolution operation of mobile jib and horizontal pole an to only install a motor on the power rod and just can provide function power for whole drying tower device.

Description

Drying tower device capable of drying grains in batches

Technical Field

The utility model relates to a grain crop processing and treating equipment technical field, more specifically say, in particular to drying tower device that in batches can dry cereal.

Background

In order to better store and transport the grains, people use a drying tower device to make the grains fully contact with hot air flow according to the relative motion of the grains and the air flow, and move the materials forwards until the grains are completely dried, so that the germination rate of the grains in the storage and transportation operations is greatly reduced.

When using the drying tower device to dry cereal, because original drying tower device can not carry out ration, batch rotatory conveying to the cereal of needs stoving operation in the device inboard, it is inboard that the cereal that leads to needs stoving operation can enter into the device of one brain, and then leads to causing a large amount of accumulations of cereal, has influenced the stoving effect of drying tower device greatly, and then has reduced the drying efficiency of drying tower device.

Accordingly, in view of the above, research and improvement are made on the existing structure and defects, and a drying tower device capable of drying grains in batches is provided, so as to achieve the purpose of higher practical value.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a drying tower device of cereal can be dried in batches to solve and to carry out ration, the rotatory conveying in batches at original drying tower device to the cereal that needs the stoving operation, influence drying tower device's stoving effect, and then reduced drying tower device's drying efficiency's problem.

The utility model relates to a purpose and efficiency of drying tower device that can dry cereal in batches is reached by following concrete technological means:

a drying tower device capable of drying grains in batches comprises a main body and a feeding cover cylinder, wherein the main body is of a hollow cylindrical structure, the feeding cover cylinder is correspondingly arranged on the upper side of the main body in the middle, and the feeding cover cylinder is composed of a hollow conical structure and a hollow cylindrical structure; the feeding extension plate is correspondingly arranged on the outer end face of the right side of the feeding cover cylinder and is of a U-shaped plate structure; the main rod vertically penetrates through the main body and the middle inner side of the feeding cover cylinder; the power rod vertically penetrates through the outer side of the rear end of the feeding cover cylinder; the cross rod a transversely penetrates through the outer side of the upper end of the feeding cover cylinder; the joint rod transversely penetrates through the upper side of the left end of the feeding extension plate; and the cross rod b transversely penetrates through the upper side of the right end of the feeding extension plate.

Furthermore, the main body comprises a drying air duct and a lower cover cylinder, a group of drying air ducts are respectively arranged on the end face of the outer side of the main body in an annular mode, and a dryer is installed on the inner side of each drying air duct; the blanking cover cylinder is correspondingly arranged at the bottom of the lower side of the main body and is of a hollow conical structure; the feeding cover cylinder comprises a support a and a support b, the support a is fixedly arranged at the right end of the front side of the feeding cover cylinder, and a cross rod a is arranged in the support a in a penetrating mode; and the bracket b is fixedly arranged at the right end of the rear side of the feeding cover cylinder.

Further, the feeding extension plate comprises a bracket c, a bracket d and a bracket e, the bracket c is fixedly arranged at the left end of the front side of the feeding extension plate, and an engaging rod is arranged in the bracket c in a penetrating manner; the bracket d is fixedly arranged at the right end of the front side of the feeding extension plate; the bracket e is fixedly arranged at the left end of the rear side of the feeding extension plate, and the cross rod b is arranged in the bracket d and the bracket e in a penetrating manner; the main rod comprises a gear a, a poking piece and a scraping rod, and the gear a is fixedly arranged on the upper side of the middle of the main rod; the group of the poking pieces are arranged on the outer end face of the lower side of the main rod; the scraping rod is fixedly arranged at the bottom of the lower side of the main rod.

Further, the power rod comprises a gear b and a bevel gear A, the gear b is fixedly arranged on the upper side of the middle of the power rod, and the gear b is meshed with the gear a; the bevel gear A is fixedly arranged on the lower side in the middle of the power rod; the horizontal pole a includes bevel gear B and dials the ring, bevel gear B fixed mounting is in the rear side between two parties of horizontal pole a, and bevel gear B and bevel gear A mesh mutually, dial ring fixed mounting in the front side between two parties of horizontal pole a.

Further, the joint rod comprises a gear c and a rotating block, and the gear c is fixedly arranged on the central rear side of the joint rod; the rotating block is fixedly arranged on the front side in the middle of the connecting rod, and the rotating block is meshed with the shifting ring; the transverse rod b comprises a gear d and a partition plate, the gear d is fixedly installed on the middle front side of the transverse rod b, a chain is connected and installed on the gear d and the gear c, and the gear d and the gear c are connected with each other through the chain; the divider plate is mounted on the lower central side of the cross bar b.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses because the division board of installation can rotate in intermittent type formula stir the cereal that needs the stoving operation and enter into the pan feeding extension tube, realize carrying out ration, batch rotatory conveying to the cereal that needs the stoving operation, avoid original drying tower device not to carry out ration, batch rotatory conveying to the cereal that needs the stoving operation, prevent that the entering of the cereal that needs the stoving operation one brain from causing the piling up of cereal in the main part, avoid influencing the stoving effect of drying tower device, and then improve the drying efficiency of drying tower device;

2. the utility model can drive the synchronous rotation operation of the main rod and the cross rod a by the power rod, and the power rod is provided with only one motor to provide the whole drying tower device with operation power, thereby not only realizing the bidirectional transmission of power, realizing the synchronous operation of feeding and stirring of the drying tower device, but also greatly improving the operation efficiency of the drying tower device;

3. the utility model discloses because install the nose bar on the thumb ring of installation, rotatory piece is triangle platelike structure, and has seted up three recesses on the rotatory piece, will realize that the thumb ring is driving rotatory piece and the joint rod carries out the intermittent type formula is rotatory for the structure interlock operation of drying tower device is nimble more and practical, satisfies the user demand that cereal was dried in batches.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic view of the top left front axial view structure of the present invention.

Fig. 2 is a schematic diagram of the right front upper axial view structure of the present invention.

Fig. 3 is an enlarged schematic view of the part labeled a in fig. 2 according to the present invention.

Fig. 4 is a schematic view of the main body, the feeding cover cylinder and the main rod of the present invention showing a vertical cut axis structure.

Fig. 5 is a schematic view of the main body and the feeding cover cylinder part of the vertical cutting axial structure of the utility model.

Fig. 6 is a schematic view of the feeding extension plate part of the axial structure of the present invention.

Fig. 7 is an axial view of the main rod of the present invention.

Fig. 8 is a schematic view of the power rod, the cross rod a, the connecting rod and the cross rod b of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a main body; 101. a drying air duct; 102. a blanking cover cylinder; 2. a feed shroud; 201. a bracket a; 202. a bracket b; 3. feeding and stretching a plate; 301. a support (c); 302. a bracket d; 303. a support e; 4. a main rod; 401. a gear a; 402. a toggle sheet; 403. a scraping rod; 5. a power rod; 501. a gear b; 502. a bevel gear A; 6. a cross bar a; 601. a bevel gear B; 602. ring shifting; 7. a connecting rod; 701. a gear c; 702. rotating the block; 8. a cross bar b; 801. a gear d; 802. a partition plate.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through a central medium. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 8:

the utility model provides a drying tower device capable of drying grains in batches, including a main body 1, the main body 1 is a hollow cylinder structure, the main body 1 is a structure mainly used for containing grains to be dried in the drying tower device, the main body 1 is a structure mainly used for drying operation of the drying tower device, the hollow cylinder structure of the main body 1 increases the operation and the containing capacity of the drying tower device, a feeding cover cylinder 2 is correspondingly arranged on the upper side of the main body 1 in the middle, the feeding cover cylinder 2 consists of a hollow cone structure and a hollow cylinder structure, the feeding cover cylinder 2 is a structure which needs the grains to be dried to enter most in advance, and the grains to be dried can enter smoothly; the feeding extension plate 3 is correspondingly arranged on the outer end face of the right side of the feeding hood cylinder 2, the feeding extension plate 3 is of a U-shaped plate structure, the feeding extension plate 3 is a connecting structure for connecting grains needing drying operation from the feeding hood cylinder 2 and placing the grains into the main body 1, the grains needing drying operation enter the feeding hood cylinder 2 and the main body 1 along the feeding extension plate 3, and the work efficiency of the drying tower device for placing the grains needing drying operation is improved again; mobile jib 4, mobile jib 4 is vertical to run through and installs the inboard between two parties at main part 1 and feeding cover section of thick bamboo 2, mobile jib 4 is the structure that realizes the main vertical rotation operation of drying tower device, and the length of mobile jib 4 is the longest among the drying tower device, will realize stirring rotation operation to the inboard of drying tower device, mobile jib 4 stirs the cereal that needs to be dried in the drying tower device, make cereal can not gather together in a large number together, avoid moist cereal to glue the cereal that causes together rotten.

The drying tower device comprises a power rod 5, wherein the power rod 5 is vertically installed on the outer side of the rear end of a feeding cover cylinder 2 in a penetrating mode, the power rod 5 is of a structure for improving main power for the drying tower device, a motor is installed at the top end of the upper side of the power rod 5, and the motor drives the power rod 5 to flexibly rotate, so that the drying tower device structure can automatically operate; the cross rod a6 is transversely arranged on the outer side of the upper end of the feeding cover cylinder 2 in a penetrating mode, the cross rod a6 is transversely arranged and rotates, and the cross rod a6 transmits the power of the power rod 5 to the connecting rod 7; the joint rod 7 transversely penetrates through the upper side of the left end of the feeding extension plate 3, the joint rod 7 plays a role in joint, and the power rod 5, the cross rod a6 and the cross rod b8 are mutually linked and operated together; horizontal pole b8, horizontal pole b8 transversely run through to be installed at the right-hand member upside that the board 3 was stretched in the feeding, and horizontal pole b8 is that to follow joint pole 7, horizontal pole a6 and 5 rotations of power pole and pivoted structure for the drying tower device can realize drying tower device upper end overall structure's rotatory linkage operation under the drive of a motor, and then improves the use convenience of drying tower device structure.

The main body 1 comprises a drying air channel 101 and an lower cover cylinder 102, a group of drying air channels 101 are respectively arranged on the end face of the outer side of the main body 1 in an annular mode, a dryer is installed on the inner side of each drying air channel 101, the dryers installed in the drying air channels 101 are used for drying grains placed on the inner side of the main body 1, the drying air channels 101 are of a structure that the four sides are installed on the main body 1, the drying air channels 101 are used for drying the grains on the inner side of the main body 1 in a four-side dead-corner-free mode, and therefore the drying efficiency of the drying tower device is improved; the lower cover cylinder 102 is correspondingly installed at the bottom of the lower side of the main body 1, the lower cover cylinder 102 is of a hollow conical structure, the lower cover cylinder 102 is of a structure for collecting and discharging dried grains in the main body 1, the conical structure of the lower cover cylinder 102 is convenient for uniformly collecting, discharging and bagging the dried grains, and the use convenience of the structure of the drying tower device is improved again.

The main rod 4 comprises a gear a401, a poking sheet 402 and a scraping rod 403, the gear a401 is fixedly installed on the upper side of the middle of the main rod 4, and the gear a401 is a main structure for realizing rotation of the main rod 4; the group of shifting pieces 402 are arranged on the outer end face of the lower side of the main rod 4, the shifting pieces 402 are in a structure which is rotatably arranged on the main rod 4 in a surrounding manner, the shifting pieces 402 stir grains dried on the inner side of the main body 1, and each grain is guaranteed to be uniformly subjected to drying operation of the drying tower device, so that the drying effect of the drying tower device is more uniform; the scraping rod 403 is fixedly installed at the bottom of the lower side of the main rod 4, the scraping rod 403 rotates along with the rotation of the main rod 4, the rotating scraping rod 403 rotates and scrapes the residual grain at the lower end of the inner side of the main body 1, the grain is prevented from being remained in the drying tower device, the drying tower device is prevented from being blocked, and the practicability of the drying tower device is improved.

The power rod 5 comprises a gear b501 and a bevel gear A502, the gear b501 is fixedly arranged on the upper side of the middle of the power rod 5, the gear b501 is meshed with the gear a401, the power rod 5 realizes the rotation operation of the main rod 4 through the meshing of the gear b501 and the gear a401, redundant motor equipment is not needed to be installed, and the power can be provided for the whole drying tower device by only one motor; bevel gear A502 fixed mounting is in the downside between two parties of power pole 5, and bevel gear A502 still transmits the rotary power of power pole 5 on horizontal pole a6 once more, realizes the two-way transmission of power for the feeding of drying tower device and stirring realize synchronous operation, and then improve the operating efficiency of drying tower device.

The feeding cover cylinder 2 comprises a support a201 and a support b202, and the support a201 is fixedly arranged at the right end of the front side of the feeding cover cylinder 2; the support B202 is fixedly arranged at the right end of the rear side of the feeding cover cylinder 2, the cross rod a6 is arranged in the support a201 in a penetrating mode, the support a201 and the support B202 both play a role of fixed support, the support a201 supports the front end of the cross rod a6, and the support B202 supports the rear end of the cross rod a6, so that the cross rod a6 can flexibly rotate in the support a201, and the bevel gear B601 and the shifting ring 602 on the cross rod a6 are guaranteed to be precisely matched with the power rod 5 and the connecting rod 7 for use; horizontal pole a6 includes bevel gear B601 and dials ring 602, bevel gear B601 fixed mounting is in the rear side placed in the middle of horizontal pole a6, and bevel gear B601 and bevel gear A502 mesh mutually, make bevel gear A502 mesh bevel gear B601 in step and rotate, realize the synchronous revolution of power pole 5 and horizontal pole a6, dial ring 602 fixed mounting in the front side placed in the middle of horizontal pole a6, the rotatory synchronization of horizontal pole a6 drives to dial ring 602 and rotate, and dial the outside of ring 602 and install the nose bar, the nose bar is followed and is dialled ring 602 and rotate, and dial the synchronous rotation block 702 of dialling of nose bar on the ring 602 and rotate, guarantee the installation tightness of drying tower device structure, make the structure can rationally mesh the interlock, the reasonable meshing interlock of structure makes the stoving operation of cereal more convenient, and then improve the operating efficiency of drying tower device.

The feeding extension plate 3 comprises a bracket c301, a bracket d302 and a bracket e303, the bracket c301 is fixedly installed at the left end of the front side of the feeding extension plate 3, the joint rod 7 is installed in the bracket c301 in a penetrating manner, the bracket c301 supports and limits the middle position of the structure of the joint rod 7, and the joint rod 7 is guaranteed to rotate in the bracket c301 accurately; the bracket d302 is fixedly arranged at the right end of the front side of the feeding extension plate 3; the support e303 is fixedly arranged at the left end of the rear side of the feeding extension plate 3, the cross rod b8 is arranged in the support d302 and the support e303 in a penetrating mode, and the support d302 and the support e303 are matched with each other, so that the installation position of the cross rod b8 cannot be moved easily; the joint rod 7 comprises a gear c701 and a rotating block 702, the gear c701 is fixedly arranged on the central rear side of the joint rod 7, the gear c701 is a structure for connecting rotation, and the gear c701 rotates along with the rotation of the joint rod 7; rotatory piece 702 fixed mounting is in the front side placed in the middle of the extension rod 7, and rotatory piece 702 and shifting ring 602 mesh mutually, and rotatory piece 702 is the triangle platelike structure, a set of recess has been seted up on rotatory piece 702, the protruding pole on the shifting ring 602 will slide repeatedly in a set of recess that rotatory piece 702 was seted up, it is rotatory to realize stirring of shifting ring 602 rotation piece 702, and the triangle platelike structure of rotatory piece 702 and the three recesses of seting up, will realize that rotatory piece 702 is driving the extension rod 7 and is carrying out the intermittent type formula rotation, will make the structure interlock operation of drying tower device more nimble and practical, satisfy the user demand that cereal was dried in batches.

The cross bar b8 comprises a gear d801 and a partition plate 802, the gear d801 is fixedly installed on the central front side of the cross bar b8, a chain is connected and installed on the gear d801 and the gear c701, the gear d801 and the gear c701 are connected with each other through the chain, synchronous rotation of the gear d801 and the gear c701 is achieved through installation of the chain, and intermittent rotation of the gear c701 and the connecting rod 7 is achieved, so that clearance type rotation of the cross bar b8 is achieved; division board 802 is installed at horizontal pole b8 downside placed in the middle, horizontal pole b8 will drive division board 802 and carry out synchronous intermittent type formula rotation, division board 802 stirs the rotatory feeding of intermittent type formula and stretches the cereal of needs stoving operation in board 3, the realization is quantitative to the cereal of needs stoving operation, rotatory conveying in batches, avoid original drying tower device not to carry out the ration to the cereal of needs stoving operation, rotatory conveying in batches, prevent to need getting into main part 1 of cereal one brain of stoving operation, and then lead to the fact piling up of cereal, still avoid influencing the stoving effect of drying tower device greatly, and then improve the drying efficiency of drying tower device once more.

The specific use mode and function of the embodiment are as follows:

in the using process, grains to be dried enter the feeding cover cylinder 2 and the main body 1 through the feeding extension plate 3, a motor on the power rod 5 is started, the motor drives the power rod 5 to vertically rotate on the bracket b202, the power rod 5 drives the gear b501 on the upper side and the bevel gear A502 on the lower side to synchronously rotate, the gear b501 rotates to be meshed with the gear a401 to rotate, the rotation of the gear a401 drives the main rod 4 to rotate on the central inner side of the main body 1 and the feeding cover cylinder 2, the poking pieces 402 and the scraping rods 403 rotate along with the rotation of the main rod 4, and the poking pieces 402 stir the grains dried on the inner side of the main body 1;

while stirring, a dryer in the drying air duct 101 is put in and started to dry, a bevel gear A502 is rotationally meshed with a bevel gear B601 to rotate synchronously, the bevel gear B601 drives a cross rod a6 to rotate transversely in a support a201, the cross rod a6 drives a shifting ring 602 to rotate, a convex rod on the shifting ring 602 drives a rotating block 702 to rotate intermittently, the rotating block 702 drives an engaging rod 7 to rotate in a support c301 in a penetrating manner, the engaging rod 7 drives a gear c701 to rotate, the gear c701 drives a gear d801 to rotate through a chain, the gear d801 drives a cross rod B8 to rotate in a support d302 and a support e303, the cross rod B8 drives a partition plate 802 to rotate, and the partition plate 802 rotates in a feeding extension plate 3;

then, the division plate 802 intermittently rotates and stirs the grains needing drying operation in the feeding extension plate 3, the dried grains are discharged through the lower cover cylinder 102 after the drying is finished, the rotation of the main rod 4 enables the scraping rod 403 to rotationally scrape the grains left at the lower end of the inner side of the main body 1, and thus, the use process of the drying tower device is finished.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (8)

1. The drying tower device capable of drying grains in batches is characterized by comprising a main body (1) and a feeding cover cylinder (2), wherein the feeding cover cylinder (2) is correspondingly arranged on the upper side in the middle of the main body (1); the feeding extension plate (3), the feeding extension plate (3) is correspondingly arranged on the outer end face of the right side of the feeding cover cylinder (2); the main rod (4) is vertically arranged on the middle inner side of the main body (1) and the feeding cover cylinder (2) in a penetrating manner; the power rod (5), the power rod (5) vertically penetrates through the outer side of the rear end of the feeding cover cylinder (2); the cross rod a (6), the cross rod a (6) transversely penetrates through the outer side of the upper end of the feeding cover cylinder (2); the joint rod (7) transversely penetrates through the upper side of the left end of the feeding extension plate (3); the cross rod b (8), the cross rod b (8) transversely penetrates through the upper side of the right end of the feeding extension plate (3).

2. A drying tower apparatus for batch drying of grains according to claim 1, wherein said main body (1) comprises a drying air duct (101) and a discharge hood (102), a plurality of said drying air ducts (101) being respectively installed in an annular arrangement on an outer end surface of the main body (1); the blanking cover cylinder (102) is correspondingly arranged at the bottom of the lower side of the main body (1).

3. A drying tower apparatus for batch drying of grain according to claim 1, wherein said feed hood drum (2) comprises a support a (201) and a support b (202), said support a (201) is fixedly installed at the right end of the front side of the feed hood drum (2), and a cross bar a (6) is installed through the support a (201); the bracket b (202) is fixedly arranged at the right end of the rear side of the feeding cover cylinder (2).

4. A dryer apparatus for bulk drying of grain according to claim 1, wherein said feed extension plate (3) comprises a support c (301), a support d (302) and a support e (303), said support c (301) is fixedly mounted on the left front end of the feed extension plate (3), and a connecting rod (7) is mounted through the support c (301); the bracket d (302) is fixedly arranged at the right end of the front side of the feeding extension plate (3); and the support e (303) is fixedly arranged at the left end of the rear side of the feeding extension plate (3), and the cross rod b (8) is arranged in the support d (302) and the support e (303) in a penetrating manner.

5. A drying tower apparatus for batch drying of grains according to claim 1, wherein said main rod (4) comprises a gear a (401), a paddle (402) and a scraper bar (403), said gear a (401) being fixedly mounted on the central upper side of the main rod (4); the group of the poking pieces (402) are arranged on the outer end face of the lower side of the main rod (4); the scraping rod (403) is fixedly arranged at the bottom of the lower side of the main rod (4).

6. A drying tower apparatus for batch drying of grain according to claim 5, characterised in that said power rod (5) comprises a gear b (501) and a bevel gear A (502), said gear b (501) being fixedly mounted on the central upper side of the power rod (5) and said gear b (501) being in mesh with gear a (401); the bevel gear A (502) is fixedly arranged on the lower side in the middle of the power rod (5).

7. A dryer assembly according to claim 6, wherein said cross bar a (6) comprises a bevel gear B (601) and a dial ring (602), said bevel gear B (601) being fixedly mounted on the central rear side of said cross bar a (6) and said bevel gear B (601) being in engagement with bevel gear A (502), said dial ring (602) being fixedly mounted on the central front side of said cross bar a (6); the joint rod (7) comprises a gear c (701) and a rotating block (702), and the gear c (701) is fixedly installed on the central rear side of the joint rod (7); the rotating block (702) is fixedly arranged on the central front side of the connecting rod (7), and the rotating block (702) is meshed with the shifting ring (602).

8. A drying tower apparatus for batch drying of grain according to claim 7, wherein said cross bar b (8) comprises a gear d (801) and a partition plate (802), said gear d (801) is fixedly installed on the central front side of the cross bar b (8), and a chain is installed on the gear d (801) and the gear c (701) in a connecting manner, and the gear d (801) and the gear c (701) are connected with each other through the chain; the divider plate (802) is mounted on the lower central side of the cross bar b (8).

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