Chain conveying device, conveying module and conveying line

Abstract

The application discloses a chain conveying device, a conveying module and a conveying line, and relates to the technical field of chain conveying lines. The application comprises: a mounting frame, a driving sprocket and a driven sprocket are rotatably mounted on the mounting frame, and a chain is sleeved on the driving sprocket and the driven sprocket; a backing plate is mounted on the mounting frame, the backing plate has a first direction and a second direction which are perpendicular to each other, and the backing plate is used for carrying articles. The application is characterized in that clamping pieces and fixing pieces are mounted on the backing plate along the first direction and the second direction which are perpendicular to each other, the backing plate is connected with the chain through connecting pieces, the backing plate is facilitated to move through the chain, when the backing plate transports the articles, the articles are fixed along the first direction through the clamping pieces, and the articles are fixed along the second direction through the fixing pieces, when the articles are transported, the possibility that the articles fall off the backing plate is reduced, and the possibility that the articles are damaged during the transportation is reduced.

Description

Technical Field

[0001] This application relates to the field of chain conveying technology, specifically to a chain conveying device, conveying module, and conveying line. Background Technology

[0002] Chain conveyor lines, also known as chain lines, are equipment that uses chains as traction and load-bearing components to transport materials. Chains mainly transport pallets, large turnover boxes, etc. In order to expand the range of items that chain conveyor lines can transport, pallet-type chain conveyor lines have been developed. These lines have pallets installed on the chain to support the items to be transported, making them more stable during transportation.

[0003] Existing pallet-type chain conveyor lines transport large items, such as stacked boxes or plates, by moving the pallet along the chain. However, during operation, the upper surface of the chain is not flat, and a single chain conveyor line often consists of multiple chains. When the pallet passes over uneven surfaces or near the ends of two closely spaced chains, swaying occurs. This swaying continues as the pallet moves, easily causing the transported items to tip over and potentially damage them. Therefore, this application provides a chain conveyor device, conveyor module, and conveyor line to improve this problem. Summary of the Invention

[0004] The purpose of this application is to address the problem that existing chain conveyor lines, due to the non-planar upper surface of the chain and the fact that a single chain conveyor line often consists of multiple chains, will cause swaying when the pallet passes over uneven areas or the approaching ends of two chains. As the pallet moves, the swaying continues, which can easily cause the transported items above to tip over during use. This application provides a chain conveyor device, a conveyor module, and a conveyor line.

[0005] To achieve the above objectives, this application specifically adopts the following technical solution:

[0006] A chain conveyor device, comprising:

[0007] A mounting frame on which a drive sprocket and a driven sprocket are rotatably mounted, and chains are fitted onto the drive sprocket and the driven sprocket;

[0008] A pad mounted on the mounting bracket, the pad having a first direction and a second direction perpendicular to each other, the pad being used to support articles;

[0009] A clamping piece is mounted on the base plate along the first direction, the clamping piece has two contact ends and two resistance ends, the contact ends are located on the upper surface of the base plate, the resistance ends are away from the upper surface of the base plate, when the two contact ends are away from each other, the two resistance ends are close to each other, the resistance ends are used to resist the article along the first direction;

[0010] A fixing piece is mounted on the base plate along the second direction, the fixing piece has two movable ends, when the article is located on the base plate, the movable ends resist the article along the second direction;

[0011] A connecting piece is mounted on both sides of the base plate along the first direction, the connecting piece is used to connect the chain and the base plate, so that the chain drives the base plate to move.

[0012] Further, the clamping piece includes:

[0013] A mounting plate is symmetrically mounted on both sides of the base plate, the mounting plate is symmetrically mounted on the base plate along the first direction;

[0014] A contact plate is slidably mounted on the mounting plate, the contact end is one end of the two contact plates, the lower surface of the contact plate is in contact with the upper surface of the base plate;

[0015] A resistance plate is slidably mounted on the mounting plate, the resistance end is one end of the two resistance plates, the length of the resistance plate is shorter than that of the contact plate;

[0016] A connecting rod is hingedly connected to the mounting plate, the contact plate and the resistance plate are both slidably mounted with a hinge block, both ends of the connecting rod are hingedly connected to the two hinge blocks, and the hinge point of the connecting rod and the mounting plate is close to the resistance plate.

[0017] Further, the base plate is provided with a sliding groove along the second direction, and the fixing piece includes:

[0018] A fixing plate is slidably mounted in the sliding groove, the fixing plate is fixedly provided with a baffle, the baffle is mounted on the upper surface of the fixing plate, and the top of the baffle and the upper surface of the fixing plate have a distance difference;

[0019] A tension spring is mounted in the sliding groove, one end of the tension spring is connected to the inside of the sliding groove, and the other end is connected to the fixing plate, the tension spring forces the two fixing plates to be close to each other.

[0020] Further, the connecting piece includes:

[0021] A connecting shell is mounted on both sides of the base plate along the first direction, and a cavity is formed on the connecting shell and faces the chain;

[0022] A connecting plate is mounted in the cavity, and the lower surface of the connecting plate is in contact with the chain, and a ball is rolling fitted on the connecting plate and connected with the recess on the chain.

[0023] Further, a supporting spring is mounted in the cavity, one end of the supporting spring is connected with the inside of the cavity, and the other end is connected with the connecting plate, a damping member is mounted on the connecting plate, and the damping member is used to limit the deformation length and direction of the supporting spring.

[0024] Further, the damping member comprises:

[0025] An outer sleeve is mounted in the cavity, and a sliding cavity is formed on the outer sleeve, and the outer sleeve is located in the inner ring of the supporting spring;

[0026] An outer rod is slidingly mounted in the sliding cavity, one end of the outer rod is slidingly mounted in the outer sleeve, and the other end is fixedly connected with the connecting plate;

[0027] The maximum length between the outer sleeve and the outer rod is equal to the original length of the supporting spring.

[0028] Further, a protrusion is mounted on the side of the connecting shell close to the base plate, a groove is formed on the base plate for accommodating the protrusion, and a bolt is inserted in the base plate along a direction perpendicular to the protrusion.

[0029] The application also provides a chain conveying module, which comprises a driving device and the chain conveying device, the driving device is connected with the driving sprocket, and the driving device is used to drive the driving sprocket to rotate.

[0030] Further, a rack plate is mounted on the mounting frame, a rotating cylinder is rotatably mounted on the rack plate, and the rotating cylinder is in contact with the lower surface of the base plate.

[0031] In another aspect, the application also provides a chain conveying line, which comprises at least two chain conveying modules, a bolt plate is arranged on the mounting frame along the second direction, and all the chain conveying modules are sequentially connected with the bolt through the bolt plate and the bolt along the length direction of the mounting frame.

[0032] The application has the following advantages:

[0033] 1、The application is provided with clamping pieces and fixing pieces along the first direction and the second direction perpendicular to each other on the pad plate, the pad plate is connected with the chain through the connecting piece, the pad plate is moved through the chain, when the pad plate transports the articles, the articles are fixed along the first direction through the clamping pieces, the articles are fixed along the second direction through the fixing pieces, when the articles are transported, the possibility of articles falling off the pad plate is reduced, and the possibility of damaging the articles during transportation is reduced.

[0034] 2、The application is provided with two contact plates, the two contact plates are away from each other, the connecting rod is driven to rotate, the connecting rod pushes the abutting plates to be close to each other, the articles are clamped, the hinge point of the connecting rod is close to the abutting plates, the force arm is increased, and the abutting plates are pushed.

[0035] 3、The application is used, the articles are placed between the two fixed plates, the articles are blocked through the baffle, the possibility of articles falling off is reduced, and the baffle can block different sizes of articles through the cooperation of the extension spring, the articles are better protected. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 It is a schematic diagram of the three-dimensional structure of the chain conveying line of the application;

[0037] Figure 2 It is a schematic diagram of the three-dimensional structure of the chain conveying module of the application;

[0038] Figure 3 It is a schematic diagram of the three-dimensional structure of the chain conveying device of the application;

[0039] Figure 4 It is an exploded view of part of the structure of the application;

[0040] Figure 5 It is an exploded view of another part of the structure of the application;

[0041] Figure 6 It is an exploded view of the connecting piece structure of the application;

[0042] Fig. 1, pad; 2, clamping piece; 201, mounting plate; 202, contact plate; 203, abutting plate; 204, connecting rod; 205, hinge block; 3, fixing piece; 301, fixed plate; 302, baffle; 303, extension spring; 4, mounting frame; 5, chain; 6, connecting piece; 601, connecting shell; 602, connecting plate; 603, ball; 7, sliding groove; 8, supporting spring; 9, damping piece; 901, outer sleeve; 902, outer rod; 10, protrusion; 11, groove; 12, bolt; 13, driving device; 14, shelf plate; 15, rotating drum; 16, bolt plate. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application.

[0044] As shown in Figures 1-4 A chain conveying device, comprising:

[0045] A mounting frame 4, a driving sprocket and a driven sprocket are rotatably mounted on the mounting frame 4, a chain 5 is sleeved on the driving sprocket and the driven sprocket, the mounting frame 4 comprises a leg and a plate body, there are two plate bodies which are symmetrically mounted on the leg, the driving sprocket and the driven sprocket are symmetrically mounted on the two plate bodies, so that two symmetric chains 5 are arranged on the same mounting frame 4, a connecting rod is mounted between the two symmetric driving sprockets, and a connecting rod is also mounted between the two symmetric driven sprockets, the connecting rod is used to make the symmetric driving sprocket and the driven sprocket rotate synchronously;

[0046] A base plate 1 is mounted on the mounting frame 4, the base plate 1 has a first direction and a second direction which are perpendicular to each other, the base plate 1 is used to carry articles, the upper surface of the base plate 1 is used to carry articles such as a plate body or a box body, the first direction is the direction between the two plate bodies of the mounting frame 4, and the second direction is perpendicular to the first direction in the horizontal direction and is the conveying direction of the chain 5, in use, the base plate 1 facilitates the conveying of articles whose length in the first direction is less than the distance between the two plate bodies of the mounting frame 4;

[0047] A clamping piece 2 is mounted on the base plate 1 in the first direction, the clamping piece 2 has two symmetrically arranged contact ends and two abutting ends, the contact ends are located on the upper surface of the base plate 1, and there is a distance difference between the abutting ends and the upper surface of the base plate 1, when the two contact ends are away from each other, the two abutting ends are close to each other, the abutting ends are used to abut the articles in the first direction, in use, when the articles are placed on the base plate 1, the articles are in contact with the contact ends and are abutted by the two contact ends, so that the two contact ends are away from each other, thereby the two abutting ends are close to each other, the articles are clamped by abutting, and the possibility of falling of the articles in the first direction is reduced when the base plate 1 conveys the articles;

[0048] A fixing piece 3 is mounted on the base plate 1 in the second direction, the fixing piece 3 has symmetrically arranged movable ends, when the articles are located on the base plate 1, the movable ends abut the articles in the second direction, when the articles are placed on the base plate 1, the articles are clamped by the clamping piece 2 in the first direction and are fixed by the movable ends of the fixing piece 3 in the second direction, in use, the possibility of falling of the articles in the second direction is reduced;

[0049] A connecting piece 6 is mounted on both sides of the base plate 1 in the first direction, the connecting piece 6 is used to connect the chain 5 and the base plate 1, so that the base plate 1 moves when the chain 5 moves, the base plate 1 and the chain 5 are connected through the connecting piece 6, the chain 5 drives the base plate 1 to move, and the articles are conveniently conveyed.

[0050] Compared with the prior art, in use, the article is fixed in the first direction and the second direction by the clamping piece 2 and the fixing piece 3, in use, the possibility of falling of the article during transportation is reduced, and the article is facilitated to be protected.

[0051] As shown in Figure 3 some embodiments, the clamping piece 2 comprises:

[0052] The mounting plate 201 symmetrically mounted on both sides of the base plate 1, the mounting plate 201 is symmetrically mounted on the base plate 1 along the first direction, the mounting plate 201 is an elongated plate body, in use, the length side of the mounting plate 201 is located in the vertical direction;

[0053] The contact plate 202 is slidably mounted on the mounting plate 201, the contact end is the opposite end of the two contact plates 202, the lower surface of the contact plate 202 is in contact with the upper surface of the base plate 1, and the two sides of the contact plate 202 are provided with sliding blocks, and the mounting plate 201 is provided with a containing cavity for containing the contact plate 202, and a guide groove for containing the sliding block is formed in the containing cavity, so that the contact plate 202 can only move in the first direction;

[0054] The contact plate 202 is slidably mounted on the mounting plate 201, the contact end is the opposite end of the two contact plates 202, the lower surface of the contact plate 202 is in contact with the upper surface of the base plate 1, and the two sides of the contact plate 202 are provided with sliding blocks, and the mounting plate 201 is provided with a containing cavity for containing the contact plate 202, and a guide groove for containing the sliding block is formed in the containing cavity, so that the contact plate 202 can only move in the first direction;

[0055] The connecting rod 204 is hinged on the mounting plate 201, the hinged blocks 205 are slidingly installed on the contact plate 202 and the resisting plate 203, the two ends of the connecting rod 204 are respectively hinged with the two hinged blocks 205, the hinge point of the connecting rod 204 on the mounting plate 201 is close to the resisting plate 203, the rod body of the connecting rod 204 is hinged with the mounting plate 201, the hinged blocks 205 are slidingly installed on the contact plate 202 and the resisting plate 203 along the vertical direction, the two ends of the connecting rod 204 are respectively hinged with the two hinged blocks 205, the connecting rod 204 forms a lever, when the two contact plates 202 are away from each other, the connecting rod 204 rotates along the hinge point on the mounting plate 201, and one end of the connecting rod 204 hinged with the resisting plate 203 pushes the resisting plate 203 to be close to each other to resist and clamp the articles, and the hinge point of the connecting rod 204 is close to the resisting plate 203, so that the force arm at the contact plate 202 is increased, and the contact plate 202 can better push the resisting plate 203.

[0056] As shown in the drawings, Figure 5 In some embodiments, the base plate 1 is provided with a sliding groove 7 in the second direction, and the fixing part 3 comprises:

[0057] The fixing plate 301 is slidingly installed in the sliding groove 7, the fixing plate 301 is fixedly provided with the baffle 302, the baffle 302 is installed on the upper surface of the fixing plate 301, there is a distance difference between the top of the baffle 302 and the upper surface of the fixing plate 301, the baffle 302 is perpendicular to the upper surface of the fixing plate 301, and the baffle 302 is used for resisting the articles to reduce the articles from falling in the second direction, and the movable end is composed of the baffle 302 and the fixing plate 301.

[0058] The tension spring 303 is installed in the sliding groove 7, one end of the tension spring 303 is connected with the inside of the sliding groove 7, the other end is connected with the fixing plate 301, the tension spring 303 forces the two fixing plates 301 to be close to each other, in use, when the articles are placed on the base plate 1, when the length of the articles in the second direction is greater than the length between the two baffles 302, the distance between the two baffles 302 is increased through the stretching of the tension spring 303, so that the articles of different sizes can be resisted, and the tension spring 303 can better fix the articles through the tension force generated on the fixing plate 301.

[0059] As shown in the drawings, Figure 6 In some embodiments, the connecting part 6 comprises:

[0060] The connecting shell 601 is installed on both sides of the base plate 1 along the first direction, the connecting shell 601 is provided with a cavity facing the chain 5, the opening of the cavity provided on the connecting shell 601 faces the chain 5, and the two sides of the connecting shell 601 are located on both sides of the chain 5.

[0061] A connecting plate 602 is installed inside the cavity. The lower surface of the connecting plate 602 contacts the chain 5. A ball bearing 603 is rolled on the connecting plate 602. The ball bearing 603 is connected to a recess on the chain 5. The ball bearing 603 is located in the recess between two rollers on the chain 5. When the connecting plate 602 contacts the chain 5, the relative movement between the connecting plate 602 and the chain 5 is reduced. The ball bearing 603 reduces the friction when the connecting plate 602 and the chain 5 are connected, thus reducing the wear of the device.

[0062] like Figure 6 As shown, in some embodiments, a support spring 8 is installed inside the cavity. One end of the support spring 8 is connected to the inside of the cavity, and the other end is connected to the connecting plate 602. A damping element 9 is installed on the connecting plate 602. The damping element 9 is used to limit the deformation length and deformation direction of the support spring 8. Both the support spring 8 and the damping element 9 are installed between the cavity and the connecting plate 602. When the connecting plate 602 moves with the chain 5, the swaying during movement is reduced by the support spring 8 and the damping element 9. The damping element 9 limits the stretching length and direction of the support spring 8, so that the support spring 8 will not bend when deformed, and the support spring 8 can only be compressed and restored.

[0063] like Figure 6 As shown, in some embodiments, the damping element 9 includes:

[0064] An outer sleeve 901 is installed inside the cavity. A sliding cavity is provided on the outer sleeve 901. The outer sleeve 901 is located inside the inner ring of the support spring 8. The inner ring of the support spring 8 is the gap of the spring along the axial direction.

[0065] An outer rod 902 is slidably installed in the sliding cavity. One end of the outer rod 902 is slidably installed in the outer sleeve 901, and the other end is fixedly connected to the connecting plate 602. A locking block is installed on the outer rod 902. A locking groove is provided in the sliding cavity to accommodate the locking block. The locking groove is used to restrict the rotation of the outer rod 902 inside the sliding cavity and also to prevent the outer rod 902 from separating from the outer sleeve 901.

[0066] The maximum length between the outer sleeve 901 and the outer rod 902 is equal to the original length of the support spring 8. The maximum length of the damping element 9 is also equal to the original length of the support spring 8. Since the outer sleeve 901 and the outer rod 902 connect the connecting shell 601 and the connecting plate 602 respectively, the maximum distance between the connecting shell 601 and the connecting plate 602 is equal to the original length of the support spring 8, so that it will not be stretched. Moreover, the outer sleeve 901 is located inside the inner ring of the support spring 8, so that when the support spring 8 deforms, it is limited by the outer sleeve 901 and the outer rod 902, so that it will not bend, thus better reducing the shaking of the pad 1 during transportation.

[0067] like Figure 5As shown in the drawings, in some embodiments, the connecting shell 601 is mounted with a protrusion 10 on one side of the pad 1, the pad 1 is provided with a groove 11 for accommodating the protrusion 10, and a bolt 12 is inserted in the pad 1 in a direction perpendicular to the protrusion 10. The protrusion 10 is located in the horizontal direction and is inserted in the groove 11, and the bolt 12 penetrates the plate body of the pad 1 at the groove 11 in the vertical direction and also penetrates the protrusion 10, thereby connecting the connecting shell 601 and the pad 1. In use, the pad 1 is convenient to install and disassemble, and the components on the device are convenient to replace.

[0068] As shown in the drawings, Figure 1 and Figure 2 As shown in the drawings, the application also provides a chain conveying module, which, in some embodiments, comprises a driving device 13 and the chain conveying device described above. The driving device 13 is connected with the driving sprocket, and the driving device 13 is used to drive the driving sprocket to rotate. The driving device 13 is a motor, and the output shaft of the motor is coaxially connected with the driving sprocket. When the output shaft of the motor rotates, it drives the driving sprocket to rotate, thereby driving the chain 5 and the pad 1 to move.

[0069] As shown in the drawings, Figure 4 In some embodiments, the application further comprises a shelf plate 14 mounted on the mounting frame 4, and a rotating drum 15 is rotatably mounted on the shelf plate 14. The rotating drum 15 is in contact with the lower surface of the pad 1. The shelf plate 14 is located between the two plate bodies of the mounting frame 4. The rotating shaft of the rotating drum 15 is mounted on the shelf plate 14 in the first direction, and the highest point of the rotating drum 15 is in contact with the lower surface of the pad 1. The medicine pushing pipe rotating drum 15 supports the pad 1, making the pad 1 more stable during transportation. Through the rotation of the rotating drum 15, the friction between the rotating drum 15 and the pad 1 is reduced, and the movement of the pad 1 is facilitated.

[0070] As shown in the drawings, Figure 2 In another aspect, the application also provides a chain conveying line, which, in some embodiments, comprises at least two chain conveying modules described above. The mounting frame 4 is provided with a bolt plate 16 in the second direction. All chain conveying modules are sequentially connected with bolts through the bolt plate 16 in the length direction of the mounting frame 4. The plate bodies of the mounting frame 4 are both provided with a bolt plate 16. The length of the bolt plate 16 is longer than the end of the mounting frame 4. The bolt plate 16 comprises a slot plate and an insertion plate. The slot plate and the insertion plate are respectively mounted on the two sides of the mounting frame 4. The slot plate is provided with a slot for accommodating the insertion plate. In use, multiple mounting frames 4 are placed in the second direction, and the bolt plates 16 on the adjacent mounting frames 4 are overlapped, i.e. the insertion plate is inserted in the slot plate, and they are connected through the bolts to complete the assembly.

[0071] The foregoing description of the disclosed embodiments enables a person skilled in the art to make or use the application. Modifications of these embodiments will occur to persons of skill in the art, and that the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Therefore, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A chain conveyor device, characterized by The utility model relates to a kind of chain conveying device, including: Mounting frame (4), active sprocket and driven sprocket are rotatably mounted on it, chain (5) is sleeved on the active sprocket and the driven sprocket; Pad (1) is mounted on the mounting frame (4), the pad (1) has first direction and second direction perpendicular to each other on it, and the pad (1) is used to carry article; Clamping piece (2) is mounted in first direction on the pad (1), the clamping piece (2) has two contact ends and two resistance ends arranged symmetrically, the contact end is located on the upper surface of the pad (1), and there is distance difference between the resistance end and the upper surface of the pad (1), when two contact ends are away from each other, make two resistance ends close to each other, and the resistance end is used to resist along first direction and article, the clamping piece (2) includes mounting plate (201) symmetrically mounted on both sides of the pad (1), the mounting plate (201) is symmetrically mounted on the pad (1) in first direction, contact plate (202) is slidably mounted on the mounting plate (201), the contact end is the opposite end of two contact plates (202), the lower surface of the contact plate (202) is in contact with the upper surface of the pad (1), resistance plate (203) is slidably mounted on the mounting plate (201), the resistance end is the opposite end of two resistance plates (203), the length of the resistance plate (203) is shorter than the contact plate (202), the mounting plate (201) is hinged with connecting rod (204), the contact plate (202) and the resistance plate (203) are slidably provided with hinge block (205), the two ends of the connecting rod (204) are respectively hinged with two hinge blocks (205), and the hinge point of the connecting rod (204) and the mounting plate (201) is close to the resistance plate (203); Fixed piece (3) is mounted on the pad (1) in second direction, the fixed piece (3) has symmetrically arranged movable end, when article is located on the pad (1), the movable end is resisted along second direction and article; Connecting piece (6) is mounted on both sides of the pad (1) in first direction, and the connecting piece (6) is used to connect the chain (5) and the pad (1), so that the chain (5) is moved to drive the pad (1) to move.

2. A chain conveyor as claimed in claim 1, characterized in that The pad (1) is provided with sliding groove (7) in second direction, and the fixed piece (3) includes: Fixed plate (301) is slidably mounted in the sliding groove (7), the fixed plate (301) is fixed with baffle (302), the baffle (302) is mounted on the upper surface of the fixed plate (301), and the distance difference exists between the top of the baffle (302) and the upper surface of the fixed plate (301); Tension spring (303) is mounted in the sliding groove (7), one end of the tension spring (303) is connected with the inside of the sliding groove (7), the other end is connected with the fixed plate (301), and the tension spring (303) forces two fixed plates (301) to close to each other.

3. A chain conveyor as claimed in claim 1, characterized in that The connecting piece (6) includes: Connecting shells (601) are installed on both sides of the base plate (1) along the first direction, and a cavity is arranged on the connecting shell (601) and faces the chain (5); A connecting plate (602) is installed in the cavity, the lower surface of the connecting plate (602) is in contact with the chain (5), and a ball (603) is rolling fitted on the connecting plate (602) and connected with the recess on the chain (5).

4. A chain conveyor as claimed in claim 3, wherein A supporting spring (8) is installed in the cavity, one end of the supporting spring (8) is connected with the inside of the cavity, the other end is connected with the connecting plate (602), a damping piece (9) is installed on the connecting plate (602), and the damping piece (9) is used for limiting the deformation length and deformation direction of the supporting spring (8).

5. A chain conveyor as claimed in claim 4, wherein The damping piece (9) comprises: An outer sleeve (901) is installed in the cavity, a sliding cavity is formed in the outer sleeve (901), and the outer sleeve (901) is located in the inner ring of the supporting spring (8); An outer rod (902) is slidingly installed in the sliding cavity, one end of the outer rod (902) is slidingly installed in the outer sleeve (901), and the other end is fixedly connected with the connecting plate (602); The maximum length between the outer sleeve (901) and the outer rod (902) is equal to the original length of the supporting spring (8).

6. A chain conveyor as claimed in claim 3, wherein A protrusion (10) is installed on the side of the connecting shell (601) close to the base plate (1), a groove (11) for accommodating the protrusion (10) is formed in the base plate (1), and a bolt (12) is inserted in the base plate (1) along a direction perpendicular to the protrusion (10).

7. A chain conveyor module, characterized in that The chain conveying device comprises a driving device (13) connected with the driving sprocket, and the driving device (13) is used for driving the driving sprocket to rotate.

8. A chain conveyor module according to claim 7, characterized in that A rack plate (14) is installed on the mounting frame (4), a rotating drum (15) is rotatably installed on the rack plate (14), and the rotating drum (15) is in contact with the lower surface of the base plate (1).

9. A chain conveyor line, characterized in that The chain conveying device comprises at least two chain conveying modules, a bolt plate (16) is arranged on the mounting frame (4) along the second direction, and all the chain conveying modules are sequentially connected with bolts through the bolt plate (16) along the length direction of the mounting frame (4).

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