CN212739375U

CN212739375U - Full-automatic assembly line of vacuum test tube

Info

Publication number: CN212739375U
Application number: CN202021016180.XU
Authority: CN
Inventors: 黄俊昌; 谢建鹏; 杨梅; 温凯; 郑宗富
Original assignee: Amerom Technology Co ltd
Current assignee: Amerom Technology Co ltd
Priority date: 2020-06-05
Filing date: 2020-06-05
Publication date: 2021-03-19
Anticipated expiration: 2030-06-05

Abstract

The utility model discloses a full-automatic assembly line of vacuum blood collection tubes, which comprises an automatic tube preparation machine, wherein a processor is respectively electrically connected with the automatic tube preparation machine, a conveying structure, a tray berthing structure, a pushing structure and a vertical recovery structure; a transport structure lateral wall is equipped with tray berth structure along direction of transfer equidistant, and another lateral wall rigid coupling that transport structure lateral wall is relative has the propelling movement structure of mutually supporting with tray berth structure, and transport structure is located the automatic one end of being equipped with the pipe machine below and is provided with the perpendicular structure of retrieving, the utility model discloses a set up automatic pipe machine, transport structure, tray berth structure, propelling movement structure and the perpendicular structure of retrieving of being equipped with for after integrating a series of structures, can realize that the automatic joining in marriage of heparin tube is sent out, operation such as conveying, thereby make the work of taking a blood sample can high-efficiently go on, improve blood sampling efficiency.

Description

Full-automatic assembly line of vacuum test tube

Technical Field

The utility model relates to a vacuum blood sampling technical field specifically is a full-automatic assembly line of vacuum test tube.

Background

At present, most hospitals need to complete the collection and detection of huge amounts of blood samples every day; most of the operations in the existing blood sample collection process are performed manually, for example: when the blood collection tube is dispensed, a worker is required to manually dispense the blood collection tube, and after blood is collected, the worker is required to manually collect the blood, so that the working efficiency of blood collection is greatly reduced; and in order to save the time of blood collection in the current flow for after having gathered blood sample at every turn, the staff generally places blood sample beside the station, and this very big workplace area that has taken up the staff causes the inconvenience to the staff. Based on this, the utility model designs a full-automatic assembly line of vacuum test tube to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a full-automatic assembly line of vacuum test tube to solve above-mentioned technical problem.

In order to achieve the above object, the utility model provides a following technical scheme: a full-automatic assembly line of a vacuum blood collection tube comprises an automatic tube preparation machine, a processor, a conveying structure, a tray berthing structure, a pushing structure and a vertical recovery structure, wherein the processor is electrically connected with the automatic tube preparation machine, the conveying structure, the tray berthing structure, the pushing structure and the vertical recovery structure respectively;

tray berth structures are arranged on one side wall of the conveying structure at equal intervals along the conveying direction, a pushing structure matched with the tray berth structures is fixedly connected to the other side wall opposite to the one side wall of the conveying structure, and a vertical recovery structure is arranged at one end of the conveying structure below the automatic pipe preparation machine;

the conveying structures are respectively configured to convey trays with blood collection tubes to corresponding tray berthing structures, convey empty trays to a vertical recovery structure and convey blood collection tubes with collected blood, the tray berthing structures are configured to receive trays with blood collection tubes, the pushing structure is configured to push trays with blood collection tubes into the tray berthing structures, and the vertical recovery structure is configured to convey empty trays to positions for receiving blood collection tubes.

Preferably, the conveying structure comprises a first mounting plate, a second mounting plate and a third mounting plate which are arranged in parallel, a plurality of groups of supporting legs are fixedly connected to the bottoms of the first mounting plate, the second mounting plate and the third mounting plate, a first conveying belt is arranged between the first mounting plate and the second mounting plate and is configured to convey trays with blood collection tubes to corresponding tray berth structures, one end of the first conveying belt is located below the automatic tube preparation machine, a second conveying belt is arranged between the second mounting plate and the third mounting plate and is configured to convey empty trays to the vertical recovery structure, the second conveying belt is located below the first conveying belt, a third conveying belt is arranged on one side wall of the first mounting plate, which is far away from the second mounting plate, and is configured to convey blood collection tubes which have been collected, and the third conveyer belt is located between first conveyer belt and the second conveyer belt, first conveyer belt and second conveyer belt all are connected with the treater electricity.

Preferably, the blood collection device further comprises a blood collection tube collection box disposed at the other end opposite to the one end of the conveying structure, and the blood collection tube collection box is configured to receive the collected blood collection tubes conveyed from the third conveyor belt.

Preferably, the tray berth structure comprises two groups of first side plates which are arranged in parallel, the two groups of first side plates are fixedly connected with one side surface of the first mounting plate far away from the first conveying belt, the bottoms of the two groups of first side plates are flush with the bottom of the first mounting plate, a baffle is fixedly connected between one ends of the two groups of first side plates far away from the first mounting plate, a bottom plate is fixedly connected between the baffle and the first mounting plate, the top of the bottom plate is flush with the top of the first conveying belt, the two groups of first side plates are respectively provided with a first opening which is matched with the third conveying belt in a penetrating way, the bottoms of the two groups of first side plates are respectively fixedly connected with a second side plate, one end of each second side plate is fixedly connected with the second mounting plate, a fourth conveying belt is arranged between one side surfaces of the two groups of second side plates which are close to each other, the height of the fourth conveying belt is flush, the fourth conveyor belt is electrically connected with the processor.

Preferably, the second mounting plate is provided with a second opening matched with the fourth conveyor belt.

Preferably, the propelling movement structure includes the installation piece, the installation piece rigid coupling is at third mounting panel top, the high rigid coupling such as a lateral wall that the installation piece is close to the second conveyer belt has first electric cylinder and second electric cylinder.

Preferably, the vertical recycling structure comprises a frame, a first fixing plate is fixedly connected to the bottom of the frame, a third electric cylinder is fixedly connected to the top of the first fixing plate, an accepting plate is fixedly connected to the top of the third electric cylinder and configured to accept a no-load tray conveyed out of a second conveyor belt, a second fixing plate is fixedly connected to the side wall of the frame, a fourth electric cylinder is fixedly connected to the side wall of the second fixing plate and configured to push the no-load tray accepted by the accepting plate onto the first conveyor belt and located below an automatic pipe preparation machine, and the third electric cylinder and the fourth electric cylinder are electrically connected with a processor.

Preferably, one end of the bearing plate, which is far away from the second conveyor belt, is fixedly connected with a third fixing plate.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a set up automatic pipe machine, conveying structure, tray berth structure, propelling movement structure and the perpendicular structure of retrieving for after integrating a series of structures, can realize the automatic operation such as allotment of heparin tube, conveying, thereby make the work of taking a blood sample can high-efficiently go on, improve blood sampling efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic top view of the present invention;

fig. 3 is a schematic structural view of a conveying structure of the present invention;

FIG. 4 is a schematic side view of the conveying structure of the present invention;

fig. 5 is a schematic structural view of a middle tray parking structure of the present invention;

fig. 6 is a schematic structural view of the pushing structure of the present invention;

fig. 7 is a schematic structural view of the vertical recycling structure of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. preparing a pipe machine automatically; 2. a transfer structure; 201. a first mounting plate; 202. a second mounting plate; 203. a third mounting plate; 204. supporting legs; 205. a first conveyor belt; 206. a second conveyor belt; 207. a third conveyor belt; 3. a tray berthing structure; 301. a first side plate; 302. a baffle plate; 303. a base plate; 304. a first opening; 305. a second side plate; 306. a fourth conveyor belt; 4. a pushing structure; 401. mounting blocks; 402. a first electric cylinder; 403. a second electric cylinder; 5. a vertical recovery structure; 501. a frame; 502. a first fixing plate; 503. a third electric cylinder; 504. a bearing plate; 505. a second fixing plate; 506. a fourth electric cylinder; 507. a third fixing plate; 6. blood collection tube collecting box.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution: a full-automatic assembly line of a vacuum blood collection tube comprises an automatic tube preparation machine 1, a processor, a conveying structure 2, a tray berthing structure 3, a pushing structure 4 and a vertical recovery structure 5, wherein the processor is electrically connected with the automatic tube preparation machine 1, the conveying structure 2, the tray berthing structure 3, the pushing structure 4 and the vertical recovery structure 5 respectively, and one end of the conveying structure 2 is positioned below the automatic tube preparation machine 1 and receives a blood collection tube falling from the inside of the automatic tube preparation machine 1;

tray berth structures 3 are arranged on one side wall of the conveying structure 2 at equal intervals along the conveying direction, a pushing structure 4 matched with the tray berth structures 3 is fixedly connected to the other side wall opposite to one side wall of the conveying structure 2, and a vertical recovery structure 5 is arranged at one end, located below the automatic pipe preparation machine 1, of the conveying structure 2;

the conveying structures 2 are respectively configured to convey trays containing blood collection tubes to corresponding tray parking structures 3, convey empty trays to vertical recovery structures 5 and convey blood collection tubes with blood collected, the tray parking structures 3 are configured to receive trays containing blood collection tubes, the pushing structures 4 are configured to push trays containing blood collection tubes into the tray parking structures 3, and the vertical recovery structures 5 are configured to convey empty trays to positions for receiving blood collection tubes.

From the above description it follows that: through setting up automatic pipe machine, conveying structure, tray berth structure, propelling movement structure and the perpendicular structure of retrieving for after integrating a series of structures, can realize operations such as the automatic allotment of heparin tube, conveying, thereby the work that makes the blood sampling can be carried out by the high efficiency, improves blood sampling efficiency.

Specifically, the conveying structure 2 includes a first mounting plate 201, a second mounting plate 202 and a third mounting plate 203 which are arranged in parallel, a plurality of sets of supporting legs 204 are fixedly connected to bottoms of the first mounting plate 201, the second mounting plate 202 and the third mounting plate 203, a first conveying belt 205 is arranged between the first mounting plate 201 and the second mounting plate 202, the first conveying belt 205 is configured to convey trays containing blood collection tubes to the corresponding tray parking structures 3, one end of the first conveying belt 205 is located below the automatic tube preparation machine 1, a second conveying belt 206 is arranged between the second mounting plate 202 and the third mounting plate 203, the second conveying belt 206 is configured to convey empty trays to the vertical recovery structure 5, the second conveying belt 206 is located below the first conveying belt 205, a third conveying belt 207 is arranged on a side wall of the first mounting plate 201 away from the second mounting plate 202, and the third conveying belt 207 is configured to convey blood collection tubes which have been collected, the third conveyor belt 207 is positioned between the first conveyor belt 205 and the second conveyor belt 206, and both the first conveyor belt 205 and the second conveyor belt 206 are electrically connected with the processor;

from the above description it follows that: through setting up first conveyer belt, second conveyer belt and third conveyer belt for can realize respectively through three groups of conveyer belts: 1. conveying the tray with the blood collection tubes to a corresponding tray berthing structure; 2. conveying the empty pallets to a vertical recovery structure; 3. conveying the blood collection tube after blood collection; the three groups of conveyor belts do not interfere with each other in work, so that the blood sampling efficiency is further improved; and through setting up three mounting panels of group for not only make things convenient for the setting of three group's conveyer belts, also can make things convenient for the installation of other structures.

Specifically, a blood collection tube collection box 6 is further included, the blood collection tube collection box 6 is disposed at the other end opposite to the one end of the conveying structure 2, and the blood collection tube collection box 6 is configured to receive the blood collected blood collection tube conveyed from the third conveyor belt 207;

from the above description it follows that: through setting up mutually supporting of heparin tube collecting box and third conveyer belt for after blood collection finishes, can collect in the automatic conveying of heparin tube collecting box through the third conveyer belt, thereby improve blood collection efficiency, and avoid the heparin tube to occupy staff's operating position and cause inconvenient problem to the staff.

Specifically, the tray berth structure 3 comprises two groups of first side plates 301 which are arranged in parallel, wherein the two groups of first side plates 301 are fixedly connected with one side surface of the first mounting plate 201 far away from the first conveying belt 205, the bottoms of the two groups of first side plates 301 are flush with the bottom of the first mounting plate 201, a baffle 302 is fixedly connected between one ends of the two groups of first side plates 301 far away from the first mounting plate 201, a bottom plate 303 is fixedly connected between the baffle 302 and the first mounting plate 201, the top of the bottom plate 303 is flush with the top of the first conveying belt 205, the two groups of first side plates 301 are respectively provided with a first opening 304 which is mutually matched with the third conveying belt 207 in a penetrating way, the bottoms of the two groups of first side plates 301 are respectively fixedly connected with a second side plate 305, one end of the second side plate 305 is fixedly connected with the second mounting plate 202, a fourth conveying belt 306 is arranged between the side surfaces of the, and the fourth conveyor belt 306 is configured to convey empty trays to the second conveyor belt 206, the fourth conveyor belt 306 being electrically connected to the processor;

from the above description it follows that: the tray pushed from the first conveyor belt can be received by a receiving groove formed by enclosing the side plates, the baffle plates and the bottom plate; the first opening is arranged so that the installation of the tray berthing structure does not interfere with the work of the third conveyor belt; the second side plate and the fourth conveyor belt are arranged, so that the tray berthing structure can convey the empty trays onto the second conveyor belt.

Specifically, the second mounting plate 202 is provided with a second opening matched with the fourth conveyor belt 306;

from the above description it follows that: empty trays on the fourth conveyor belt can be conveyed onto the second conveyor belt through the second opening.

Specifically, the pushing structure 4 comprises an installation block 401, the installation block 401 is fixedly connected to the top of the third installation plate 203, a first electric cylinder 402 and a second electric cylinder 403 are fixedly connected to one side wall of the installation block 401, which is close to the second conveyor belt 206, at equal heights, and the first electric cylinder 402 is far away from the automatic pipe preparation machine 1;

from the above description it follows that: the installation of the pushing structure is facilitated through the installation block; and the first electric cylinder 402 plays a role in blocking the tray, so that inaccurate positioning of the tray is avoided, and the second electric cylinder 403 plays a role in pushing, so that the pushing efficiency is improved.

Specifically, the vertical recycling structure 5 includes a frame 501, a first fixing plate 502 is fixedly connected to the bottom of the frame 501, a third electric cylinder 503 is fixedly connected to the top of the first fixing plate 502, a receiving plate 504 is fixedly connected to the top of the third electric cylinder 503, the receiving plate 504 is configured to receive an empty tray conveyed out from the second conveyor belt 206, a second fixing plate 505 is fixedly connected to a side wall of the frame 501, a fourth electric cylinder 506 is fixedly connected to a side wall of the second fixing plate 505, the fourth electric cylinder 506 is configured to push the empty tray on the receiving plate 504 onto the first conveyor belt 205 and is located below the tube preparation machine 1, and both the third electric cylinder 503 and the fourth electric cylinder 506 are electrically connected to the processor;

from the above description it follows that: through setting up the structure of retrieving perpendicularly for no-load tray can be followed the second conveyer belt and conveyed and accept on the board, then promote through third electric cylinder and accept board and no-load tray and rise, then rethread fourth electric cylinder with no-load tray propelling movement to first conveyer belt and be located automatic tube preparation machine below and accept the heparin tube.

Specifically, a third fixing plate 507 is fixedly connected to one end of the bearing plate 504 far away from the second conveyor belt 206;

from the above description it follows that: when no-load tray conveys to the bearing plate, the third fixing plate can play a role in blocking, and the phenomenon that the conveying speed is too fast and the tray falls off from the bearing plate is avoided.

A specific application example of the present embodiment is shown in fig. 1 to 7:

the device is a full-automatic assembly line of vacuum blood collection tubes, and when the assembly line is used, each structure on the assembly line is installed, connected and debugged, then a matched shell is sleeved outside the device, a group of control terminals operated by nurses are respectively installed at the position of each group of tray berth structures 3, and the control terminals are electrically connected with a processor (the processor can be a Microprocessor with out interlocked pipeline stages, abbreviated as MIPS).

During operation, the nurse on the blood sampling station sends the required blood sampling tube signal through the control terminal, and the starting drive is arranged after the processor receives the signal:

the blood collection tube inside the automatic tube preparation machine 1 falls onto an empty tray on the first conveyor belt 205 right below the blood collection tube, and then the first conveyor belt 205 starts conveying; meanwhile, a first electric cylinder 402 in the pushing structure 4 on the station giving the instruction extends out, when the tray is conveyed to the station, the first electric cylinder 402 stops conveying the tray, then a second electric cylinder 403 extends out to push the tray into a receiving groove formed by two groups of first side plates 301, a baffle plate 302 and a bottom plate 303, then a first electric telescopic rod 402 retracts, and the conveying of the tray with the blood sampling tubes is completed;

after the blood collection tubes are collected, the nurses place the collected blood collection tubes on the third conveyor belt 207, so that the collected blood collection tubes are conveyed into the blood collection tube collection box 6;

after the blood collection tubes in the trays are used, the empty trays are placed on the fourth conveyor belt 306, the empty trays are conveyed to the second conveyor belt 206 by the fourth conveyor belt 306, then the empty trays are conveyed to the bearing plate 504 by the second conveyor belt 206, and the height of the bearing plate 504 is consistent with that of the second conveyor belt 206; then the third electric cylinder 503 pushes the bearing plate 504 and the empty tray to rise to the height of the first conveyor belt 205, and then the fourth electric cylinder 506 pushes the empty tray to the first conveyor belt 205 and below the automatic pipe preparation machine 1, and then the next set of processes is continued.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.

Claims

1. The utility model provides a full-automatic assembly line of vacuum test tube, is equipped with pipe machine (1) and treater including automatic, its characterized in that: the blood sampling tube recovery device is characterized by further comprising a conveying structure (2), a tray berthing structure (3), a pushing structure (4) and a vertical recovery structure (5), wherein the processor is electrically connected with the automatic tube preparation machine (1), the conveying structure (2), the tray berthing structure (3), the pushing structure (4) and the vertical recovery structure (5), and one end of the conveying structure (2) is located below the automatic tube preparation machine (1) and is used for receiving a blood sampling tube falling from the inside of the automatic tube preparation machine (1);

tray berth structures (3) are arranged on one side wall of the conveying structure (2) at equal intervals along the conveying direction, a pushing structure (4) matched with the tray berth structures (3) is fixedly connected to the other side wall opposite to the one side wall of the conveying structure (2), and a vertical recovery structure (5) is arranged at one end, located below the automatic pipe preparation machine (1), of the conveying structure (2);

the conveying structures (2) are respectively configured to convey trays containing blood collection tubes to corresponding tray berthing structures (3), convey empty trays to vertical recovery structures (5) and convey blood collection tubes with collected blood, the tray berthing structures (3) are configured to receive trays containing blood collection tubes, the pushing structures (4) are configured to push trays containing blood collection tubes into the tray berthing structures (3), and the vertical recovery structures (5) are configured to convey empty trays to positions for receiving blood collection tubes.

2. The full-automatic assembly line of vacuum blood collection tubes of claim 1, wherein: the conveying structure (2) comprises a first mounting plate (201), a second mounting plate (202) and a third mounting plate (203) which are arranged in parallel, a plurality of groups of supporting legs (204) are fixedly connected to the bottoms of the first mounting plate (201), the second mounting plate (202) and the third mounting plate (203), a first conveying belt (205) is arranged between the first mounting plate (201) and the second mounting plate (202), the first conveying belt (205) is configured to convey a tray with blood sampling tubes to a corresponding tray parking structure (3), one end of the first conveying belt (205) is located below the automatic tube preparation machine (1), a second conveying belt (206) is arranged between the second mounting plate (202) and the third mounting plate (203), the second conveying belt (206) is configured to convey empty trays to a vertical recovery structure (5), and the second conveying belt (206) is located below the first conveying belt (205), the first conveyor belt (205) and the second conveyor belt (206) are both electrically connected to the processor.

3. The full-automatic assembly line of vacuum blood collection tubes of claim 2, wherein: still include heparin tube collecting box (6), heparin tube collecting box (6) set up the other end that conveying structure (2) one end is relative, and heparin tube collecting box (6) are configured as the heparin tube that is used for receiving the blood of finishing of adopting that conveys from third conveyer belt (207).

4. The full-automatic assembly line of vacuum blood collection tubes of claim 2, wherein: the tray berth structure (3) comprises two groups of first side plates (301) which are arranged in parallel, the two groups of first side plates (301) are fixedly connected with one side surface of the first mounting plate (201) far away from the first conveying belt (205), the bottoms of the two groups of first side plates (301) are flush with the bottom of the first mounting plate (201), a baffle (302) is fixedly connected between the ends of the two groups of first side plates (301) far away from the first mounting plate (201), a bottom plate (303) is fixedly connected between the baffle (302) and the first mounting plate (201), the top of the bottom plate (303) is flush with the top of the first conveying belt (205), the two groups of first side plates (301) are provided with first openings (304) which are matched with the third conveying belt (207) in a penetrating manner, the bottoms of the two groups of first side plates (301) are fixedly connected with second side plates (305), and one ends of the second side plates (305) are fixedly connected with the, a fourth conveyor belt (306) is arranged between the two groups of side surfaces of the second side plates (305) close to each other, the height of the fourth conveyor belt (306) is flush with that of the second conveyor belt (206), the fourth conveyor belt (306) is configured to convey empty trays to the second conveyor belt (206), and the fourth conveyor belt (306) is electrically connected with the processor.

5. The full-automatic assembly line of vacuum blood collection tubes of claim 3, wherein: the second mounting plate (202) is provided with a second opening matched with the fourth conveyor belt (306).

6. The full-automatic assembly line of vacuum blood collection tubes of claim 2, wherein: propelling movement structure (4) are including installation piece (401), installation piece (401) rigid coupling is at third mounting panel (203) top, a lateral wall of installation piece (401) near second conveyer belt (206) is the same high rigid coupling has first electric cylinder (402) and second electric cylinder (403).

7. The full-automatic assembly line of vacuum blood collection tubes of claim 2, wherein: the vertical recovery structure (5) comprises a frame (501), a first fixing plate (502) is fixedly connected to the bottom of the frame (501), a third electric cylinder (503) is fixedly connected to the top of the first fixing plate (502), a bearing plate (504) is fixedly connected to the top of the third electric cylinder (503), the bearing plate (504) is configured to bear an idle tray conveyed out of the second conveying belt (206), a second fixing plate (505) is fixedly connected to a side wall of the frame (501), a fourth electric cylinder (506) is fixedly connected to a side wall of the second fixing plate (505), the fourth electric cylinder (506) is configured to push the idle tray on the bearing plate (504) to the first conveying belt (205) and is located below the automatic pipe preparation machine (1), and the third electric cylinder (503) and the fourth electric cylinder (506) are electrically connected with the processor.

8. The full-automatic assembly line of vacuum blood collection tubes of claim 7, wherein: and a third fixing plate (507) is fixedly connected to one end, far away from the second conveyor belt (206), of the bearing plate (504).