Chain block, chain and chain conveyor

Abstract

The utility model discloses a chain block, chain and chain conveying device, chain block includes the body, the body has the A end of left side position and the B end of right side position, the lower portion of A end is provided with the axle rod department of axis extension along the front and back direction, and the B end is provided with the axle rod assembly groove that is concave downward and cooperates with axle rod department, the top of axle rod assembly groove is the open structure and forms first opening at the groove top, and the left and right width of first opening is less than the diameter of axle rod department, and axle rod assembly groove horizontal penetrates the front side and / or rear side of body, the pin is provided with on the body corresponding axle rod department position, and the bottom end of pin extends downward and projects the lower surface of axle rod department and forms the projecting section, and the B end of body is provided with the pin activity avoiding groove of avoiding projecting section rotation around axle rod department axis, and the bottom of body is provided with the drive recess. The utility model discloses transmission precision is high, and the assembly is convenient, and the phenomenon that the bolt is not easy to fall off, and the reliable stability of conveying.

Description

[Technical Field]

[0001] This utility model belongs to the field of transmission device technology, and in particular relates to a chain block, chain, and chain conveying device. [Background Technology]

[0002] Chains are common material handling or power transmission structures in automated equipment. Commercially available chain structures generally have low transmission accuracy, making them unsuitable for applications requiring high precision. For example, patent CN202848532U discloses a chain block, chain, and chain conveying device. In this chain structure, the front and rear chain blocks engage with each other via interlocking protrusions and slots. This interlocking arrangement creates space perpendicular to the conveying direction, causing the material positioning mechanism mounted on the chain block to drift, affecting transmission accuracy. Furthermore, the front and rear chain blocks are connected by horizontal pins, and the assembly precision of these pins with the pin holes on the chain blocks is difficult to control, leading to the horizontal pins easily detaching and falling off during actual use.

[0003] Therefore, it is necessary to provide a new chain block, chain, and chain conveying device to solve the above-mentioned technical problems. [Utility Model Content]

[0004] One of the main objectives of this utility model is to provide a chain block that has high transmission accuracy, is easy to assemble, is not prone to pin detachment, and provides reliable and stable transmission.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: A chain block includes a body, the body having an A end on the left and a B end on the right. A shaft portion extending along a front-rear direction is provided below the A end, and a shaft assembly groove recessed downwards and engaging with the shaft portion is provided at the B end. The shaft assembly groove has an open structure above it and a first opening at the top, the left-right width of which is smaller than the diameter of the shaft portion. The shaft assembly groove horizontally penetrates the front and / or rear sides of the body. A pin is provided on the body corresponding to the position of the shaft portion, the bottom end of the pin extending downwards beyond the lower surface of the shaft portion and forming an extension section. A pin movable clearance groove is provided at the B end of the body to allow the extension section to rotate around the axis of the shaft portion. A driving groove is provided at the bottom of the body.

[0006] Furthermore, the main body is provided with a mounting hole at the position corresponding to the shaft portion, and the pin is fixedly inserted into the mounting hole; the mounting hole extends downward from the top surface of the main body and penetrates the shaft portion; the upper section of the mounting hole forms a recessed stepped hole; the head of the pin is blocked on the stepped surface of the stepped hole, and its bottom end extends downward out of the lower surface of the shaft portion to form the protruding section.

[0007] Furthermore, the pin movable clearance groove extends downward through the bottom of the body.

[0008] Furthermore, a first protrusion protruding to the left is formed on the side of end A near the top surface of the main body, and a second limiting groove, which is shaped like the first protrusion and is used to accommodate and limit the range of motion of the first protrusion, is provided on the left side of the shaft assembly groove at end B; the opening of the second limiting groove is obliquely upward; a second protrusion protruding to the right is formed on the side of end B near the bottom surface of the main body, and a first limiting groove, which is shaped like the second protrusion and is used to accommodate and limit the range of motion of the second protrusion, is provided on the right side of the shaft part at end A; the opening of the first limiting groove is obliquely downward.

[0009] Furthermore, the top surface of the first protrusion has a first arc-shaped mating surface that bends downward in the left direction, and one side wall of the second limiting groove is designed as an arc-shaped structure that mates with the first arc-shaped mating surface; the bottom surface of the second protrusion has a second arc-shaped mating surface that bends upward in the right direction, and one side wall of the first limiting groove is designed as an arc-shaped structure that mates with the second arc-shaped mating surface.

[0010] Furthermore, when the two chain blocks are assembled together, the shaft portion of the right chain block is rotatably assembled in the shaft assembly groove of the left chain block, and the protruding section of the pin of the right chain block extends into the pin movable clearance groove of the left chain block, thereby restricting the relative movement of the two chain blocks in the front-back direction by the pin on the right chain block.

[0011] Furthermore, when the two chain blocks are assembled together, the second protrusion of the left chain block extends into the first limiting groove of the right chain block, and the first protrusion of the right chain block extends into the second limiting groove of the left chain block.

[0012] Furthermore, the opening of the driving groove faces downward and has a first wall surface and a second wall surface that are opposite to each other. The second wall surface is the driving side. A third protrusion is provided on the second wall surface that protrudes toward the driving groove side. The third protrusion and the top wall of the driving groove together form a tip limiting groove.

[0013] Furthermore, a positioning element is provided on the top surface of the main body.

[0014] Another objective of this invention is to provide a chain comprising a plurality of chain blocks as described above, wherein two adjacent chain blocks are rotatably connected by the shaft portion engaging with the shaft mounting groove, and the relative forward and backward movement of the two adjacent chain blocks is restricted by the pin.

[0015] Another objective of this utility model is to provide a chain conveying device, including a first rotating wheel and a second rotating wheel and a chain as described above, wherein the chain is wound between the first rotating wheel and the second rotating wheel; the opening of the drive groove is provided with a downward-facing horn-shaped bevel structure, and a plurality of transmission protrusions that cooperate with the horn-shaped bevel structure in the drive groove are arranged at equal angles around the circumferential surfaces of the first rotating wheel and the second rotating wheel.

[0016] Another objective of this utility model is to provide a chain conveying device, including the chain as described above and a drive component for driving the chain to move horizontally.

[0017] The opening of the drive groove faces downward and has a first wall surface and a second wall surface that are opposite to each other. A third protrusion is provided on the second wall surface that protrudes toward the drive groove side. A tip limiting groove is formed between the third protrusion and the top wall of the drive groove.

[0018] The drive assembly includes a power source and a drive member that is driven by the power source to move left and right. The top of the drive member is provided with a drive part that cooperates with the drive groove at the bottom of the chain block. The top right side of the drive part forms a pointed protrusion that protrudes to the right. When the drive part is in action, its pointed protrusion is engaged in the pointed limiting groove, which drives the chain block to move horizontally synchronously and at the same time restricts the vertical freedom of the chain block.

[0019] Furthermore, the driving member has a first section and a second section arranged in an L-shape. The first section extends horizontally, and the second section extends vertically. The middle part of the driving member is rotatably mounted on a mounting block via a rotating shaft. The driving part is fixedly mounted on the first section, and an elastic member is provided below the first section to push it upward, so that the first section maintains an upward rotational trend.

[0020] Compared with existing technologies, the advantages of this utility model regarding a chain block, chain, and chain conveying device are: high transmission accuracy, convenient assembly, less prone to pin detachment, and reliable and stable conveying. Specifically:

[0021] (1) By setting a shaft part on the left side of the chain block and a shaft assembly groove on the right side, when assembling to form a chain structure, two adjacent chain blocks are rotatably connected through the shaft part and the shaft assembly groove. The shaft part is directly integrated on the chain block body, which effectively solves the problem that the pins are easy to fall off when two adjacent chain blocks are connected by additional pins in the prior art, and greatly improves the reliability of the chain quality.

[0022] (2) When assembling the two chain blocks, it is only necessary to align the shaft of one chain block with the shaft assembly slot of the other chain block and then push it in axially. Compared with the existing assembly method of "aligning the double-headed insertion hole of one chain block with the single-headed insertion hole of the other chain block and then passing the pin horizontally through the insertion holes of the two chain blocks in sequence", the chain block assembly operation in this solution is more convenient and can effectively improve the assembly efficiency of the chain.

[0023] (3) A vertically arranged pin is fixedly inserted into the shaft of one of the chain blocks. The shaft mounting slot of the other chain block is provided with a pin movable clearance groove that cooperates with the pin. The bottom end of the pin extends downward out of the lower surface of the shaft and into the pin movable clearance groove to restrict the relative movement of the two adjacent chain blocks. Since the relative movement between the two adjacent chain blocks only rotates around the axis of the shaft, it will not involve friction, shaking or other effects on the pin. Compared with the existing technology where "when the two adjacent chain blocks rotate around the pin, the chain blocks will also pull the pin laterally when pulling the transmission, which will easily cause the pin to loosen and the chain to break", the chain in this solution will not have the phenomenon of pin loosening, effectively solving the problem of chain breakage caused by pin loosening.

[0024] (4) A drive groove with a special structure is set at the bottom of the chain block. In conjunction with the structural design of the drive unit, the drive unit extends into the drive groove to directly drive the chain to move horizontally to realize material transmission. The transmission accuracy is high and the transmission is stable and reliable. [Attached Image Description]

[0025] Figure 1 This is a three-dimensional structural diagram of the chain block in Embodiment 1 of this utility model;

[0026] Figure 2 This is a front view structural diagram of the chain block in Embodiment 1 of this utility model;

[0027] Figure 3 This is a schematic diagram of the structure when two chain blocks are connected together in Embodiment 1 of this utility model;

[0028] Figure 4 This is a partial cross-sectional structural diagram of the pin and the body assembled together in Embodiment 1 of this utility model;

[0029] Figure 5 This is a schematic diagram of the structure of multiple chain blocks connected together in Embodiment 1 of this utility model, wherein the leftmost chain block is rotated to the maximum angle and the rightmost chain block is rotated to the minimum angle;

[0030] Figure 6 This is a schematic diagram of the chain structure in Embodiment 2 of this utility model;

[0031] Figure 7 This is a schematic diagram of the chain conveyor device in Embodiment 3 of this utility model;

[0032] Figure 8 This is a schematic diagram of the drive component in Embodiment 4 of this utility model;

[0033] Figure 9 This is a schematic diagram of the structure of the drive component and the chain block working together in Embodiment 4 of this utility model;

[0034] Figure 10 This is a schematic diagram of the structure of the drive assembly when it is withdrawn from the chain drive groove in Embodiment 4 of this utility model;

[0035] The numbers in the image represent:

[0036] 100 - Chain block; 200 - Chain; 300 - Chain conveyor device;

[0037] 1-Body, 11-Shaft section, 12-Shaft assembly groove, 121-First opening, 13-Mounting hole, 131-Stepped hole, 14-Pin movable clearance groove, 15-First protrusion, 16-Second protrusion, 17-First limiting groove, 18-Second limiting groove, 19-First arc-shaped mating surface, 110-Second arc-shaped mating surface, 111-Drive groove, 1111-First wall surface, 1112-Second wall surface, 1113-Third protrusion, 1114-Tip limiting groove, 1115-Flare-shaped bevel structure; 2-Pin, 21-Head, 22-Extended section; 3-Positioning component;

[0038] 20 - Inductor coil;

[0039] 301-First rotating wheel, 3011-Transmission tooth, 302-Second rotating wheel, 3031-Drive component, 30311-Drive unit, 30312-Tip protrusion, 30313-First section, 3032-Second section, 3032-Shaft, 3033-Mounting block, 3034-Elastic component.

Detailed Implementation Methods

[0040] Example 1:

[0041] Please refer to Figures 1-5 This embodiment is a chain block 100, which includes a body 1. The body 1 has an A end on the left and a B end on the right. A shaft part 11 with its axis extending in the front-back direction is provided below the A end. A shaft assembly groove 12 with its axis recessed downward and cooperating with the shaft part 11 is provided at the B end. The shaft part 11 and the shaft assembly groove 12 can be connected to each other through the cooperation of the shaft part 11 and the shaft assembly groove 12, so that the two chain blocks can rotate relative to each other around the axis of the shaft part 11 to achieve a flexible connection.

[0042] To ensure that the shaft portion 11 does not fall out of the shaft assembly groove 12 after two adjacent chain blocks are assembled together, the shaft assembly groove 12 has an open structure at the top and a first opening 121 is formed at the top of the groove. The width of the first opening 121 is smaller than the diameter of the shaft portion 11. However, in order to facilitate the assembly of the shaft portion 11 and the shaft assembly groove 12, the shaft assembly groove 12 extends horizontally through the front and / or rear side of the body 1, so that the shaft portion 11 of another chain block can be inserted into the shaft assembly groove 12 from the front or rear side of the current chain block to complete the connection of the two chain blocks.

[0043] To further prevent the two connected chain blocks from misaligning and detaching, a mounting hole 13 is provided on the body 1 at the position corresponding to the shaft 11. A pin 2 is fixedly inserted into the mounting hole 13. The mounting hole 13 extends downward from the top surface of the body 1 through the shaft 11, and the upper section of the mounting hole 13 forms a recessed stepped hole 131. The head 21 of the pin 2 is blocked on the stepped surface of the stepped hole 131 due to its large diameter, and its bottom end extends downward out of the lower surface of the shaft 11 to form a protruding section 22. An avoidance protruding section 22 is provided at the B end of the body 1 (specifically at the position corresponding to the shaft assembly groove 12) to bypass the shaft 11. When two chain blocks are assembled together, the extended section 22 of the pin 2 extends into the movable clearance groove 14 of the pivot axis. The front-to-back width of the movable clearance groove 14 is slightly larger than the diameter of the extended section 22, so that the extended section 22 can move correspondingly within the movable clearance groove 14 when it rotates with the shaft 11. At the same time, the extended section 22 does not have a large degree of freedom of movement in the movable clearance groove 14. Through the cooperation between the extended section 22 of the pin 2 and the movable clearance groove 14, the relative front-to-back freedom of the two adjacent chain blocks after they are connected can be restricted, effectively preventing the two chain blocks from being misaligned and detached.

[0044] The pin movable clearance groove 14 extends downward through the bottom of the body 1. When it is necessary to replace a chain block or to separate two adjacent chain blocks, a tool can be inserted from the bottom of the body 1 into the pin movable clearance groove 14 to push the pin 2 upward and then separate the two chain blocks by misaligning them.

[0045] The main body 1 has a first protrusion 15 protruding to the left at end A near the top surface and a second protrusion 16 protruding to the right at end B near the bottom surface. A first limiting groove 17, which conforms to the shape of the second protrusion 16 and is used to accommodate and limit its range of motion, is provided at end A on the right side of the shaft portion 11. A second limiting groove 18, which conforms to the shape of the first protrusion 15 and is used to accommodate and limit its range of motion, is provided at end B on the left side of the shaft assembly groove 12. The opening of the first limiting groove 17 slopes downwards, and the opening of the second limiting groove 18 slopes upwards. When the two chain blocks are assembled together, the second protrusion 16 of the left chain block extends into the first limiting groove 17 of the right chain block, and the first protrusion 15 of the right chain block extends into the second limiting groove 18 of the left chain block. The first limiting groove 17 can limit the angle range when the left chain block rotates downward relative to the right chain block around the axis of the shaft 11; the second limiting groove 18 can limit the angle range when the left chain block rotates upward relative to the right chain block around the axis of the shaft 11. Therefore, the first limiting groove 17 and the second limiting groove 18 limit the relative rotation angle of the two chain blocks after they are connected together. When the left chain block rotates upward relative to the right chain block to the limiting angle (i.e., the second limiting groove 18 is active), the top surfaces of the two chain blocks remain horizontal and flush, ensuring the positional stability and smoothness between the chain blocks during the conveying process.

[0046] The top surface of the first protrusion 15 has a first arc-shaped mating surface 19 that curves downward in the left direction, and the bottom surface of the second protrusion 16 has a second arc-shaped mating surface 110 that curves upward in the right direction. One side wall of the first limiting groove 17 is designed as an arc-shaped structure that mates with the second arc-shaped mating surface 110, and one side wall of the second limiting groove 18 is designed as an arc-shaped structure that mates with the first arc-shaped mating surface 19, thereby improving the smoothness of rotation and the rotation guiding function when two adjacent chain blocks rotate relative to each other.

[0047] To further improve the transmission accuracy of the chain blocks and prevent them from floating upwards during movement, this embodiment provides a driving groove 111 at the bottom of the main body 1. The driving component can extend into the driving groove 111 to drive the chain blocks to move horizontally. The opening of the driving groove 111 faces downwards and has a first wall 1111 and a second wall 1112 that are opposite to each other. The second wall 1112 is the driving side, that is, the power end of the driving component acts on the second wall 1112 to achieve horizontal driving of the main body 1. In order to ensure that the driven chain blocks do not float upwards, which would lead to driving failure or product position drift, a third protrusion 1113 is provided at the middle height of the second wall 1112, protruding towards the driving groove 111. The third protrusion 1113 and the top wall of the driving groove 111 together form a tip limiting groove 1114. After the driving component extends into the driving groove 111, it moves to the right and abuts against the second wall 1112. The side surface of the driving component that mates with the second wall 1112 is contoured to a section of the second wall 1112 and forms a pointed protrusion that fits into the pointed tip limiting groove 1114. The pointed protrusion extends into the pointed tip limiting groove 1114, effectively preventing the driving component from detaching downward from the driving groove 111. It also prevents the chain block from floating upward relative to the driving component. Furthermore, the driving component moves horizontally with the chain block, greatly improving the horizontal transmission accuracy of the chain structure composed of chain blocks.

[0048] To achieve the positioning and support of materials, a positioning element 3 is provided on the top surface of the main body 1. In this embodiment, the positioning element 3 is a vertically arranged shaft structure, for example, it can be used to position the inductor coil 20. In other embodiments, the structure of the positioning element 3 can be flexibly designed according to the characteristics of the product to be positioned. This embodiment does not limit the structure of the positioning element 3.

[0049] Preferably, the positioning element 3 is positioned directly above the drive groove 111, which ensures better transmission accuracy.

[0050] The chain block 100 can be made of iron, alloy, or plastic, and the material can be flexibly selected according to its application. When used for flattening and conveying inductor coils, iron is preferred. This embodiment does not limit the material of the chain block 100.

[0051] Example 2:

[0052] Please refer to Figure 6 This embodiment is a chain 200, which is a closed flexible structure formed by connecting several chain blocks 100. The structure of the chain block 100 is the same as that of the chain block structure in Embodiment 1.

[0053] Example 3:

[0054] Please refer to Figure 7This embodiment is a chain conveying device 300, which includes a first rotating wheel 301 and a second rotating wheel 302, and a chain 200 wound between the first rotating wheel 301 and the second rotating wheel 302; the structure of the chain 200 is the same as the chain structure in Embodiment 2. The opening of the drive groove 111 is provided with a downward-facing horn-shaped bevel structure 1115, and a plurality of transmission teeth 3011 that cooperate with the horn-shaped bevel structure 1115 in the drive groove 111 are arranged at equal angles around the circumferential surfaces of the first rotating wheel 301 and the second rotating wheel 302.

[0055] This embodiment of the chain conveying device 300 also includes a drive component (not shown in the figure) for driving the chain 200 to move horizontally. In this embodiment, the drive component is a motor, which drives the first rotating wheel 301 or the second rotating wheel 302 to rotate, thereby driving the chain 200 to be conveyed horizontally.

[0056] Example 4:

[0057] Please refer to Figures 7-10 This embodiment is a chain conveyor device, whose structure is basically the same as that of the chain conveyor device in Embodiment 3. The difference lies in the structure of the drive assembly. Specifically, in this embodiment, the drive assembly includes a power source (drive not identified) and a drive member 3031 that is driven by the power source to move left and right. The top of the drive member 3031 is provided with a drive part 30311 that cooperates with the drive groove 111 at the bottom of the chain block 100. The top right side of the drive part 30311 forms a pointed protrusion 30312 that protrudes to the right. When the drive unit 30311 is working, it extends into the drive groove 111. During the movement to the right, one side surface of the drive unit 30311 is in contact with the second wall surface 1112 of the drive groove 111, and the tip protrusion 30312 is engaged in the tip limiting groove 1114 in the drive groove 111. This restricts the drive unit 3031 and the chain block 100 in the vertical direction, thereby preventing the chain block 100 from floating upward relative to the drive unit 3031. The drive unit 3031 moves horizontally with the chain block 100, which greatly improves the horizontal transmission accuracy of the chain structure composed of chain blocks.

[0058] To achieve continuous horizontal movement of the chain 200, the drive member 3031 has an L-shaped first section 30313 and a second section 3032. The first section 30313 extends horizontally, and the second section 3032 extends vertically. The middle part of the drive member 3031 is rotatably mounted on a mounting block 3033 via a pivot 3032, so that the drive member 3031 forms a lever structure. The first section 30313 and the second section 3032 are the two lever arms of the lever structure. The drive part 30311 is fixedly mounted on the horizontally extending first section 30313. The lower part of the first section 30313 is supported upward by an elastic member 3034, so that the first section 30313 maintains an upward rotational trend, thereby allowing the drive part 30311 to extend upward into the drive groove 111 at the bottom of the chain block 100. The power source drives the mounting block 3033 to perform horizontal reciprocating motion. When the driving member 3031 drives the chain block 100 to move to the right, it is restricted by the driving groove 111 and does not have the freedom of counterclockwise rotation, thus providing a reliable rightward pushing force. When the driving member 3031 moves to the left relative to the chain block 100, the tip protrusion 30312 retracts to the left from the tip limiting groove 1114. Since the first section 30313 of the driving member 3031 can compress the elastic member 3034 downward, it has the freedom of clockwise rotation. As the driving member 3031... Continuing to move to the left, in conjunction with the clockwise rotation of the drive component 3031, the drive part 30311 is completely withdrawn from the drive groove 111. The drive component 3031 continues to move to the left to the drive starting point. When it is in place, under the lifting action of the elastic component 3034, the drive component 3031 rotates counterclockwise to the position, and the drive part 30311 extends upward into the drive groove 111. The moving direction of the drive component 3031 is switched, and the tip protrusion 30312 extends to the right again into the tip limiting groove 1114 to carry out the next cycle of horizontal transfer drive.

[0059] For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A chain block, characterized in that: The device includes a main body having an A end on the left and a B end on the right. A shaft portion extending along its axis in a front-to-back direction is located below the A end. The B end has a downwardly recessed shaft assembly groove that mates with the shaft portion. The shaft assembly groove has an open structure above it and a first opening at the top, the width of which is smaller than the diameter of the shaft portion. The shaft assembly groove horizontally penetrates the front and / or rear sides of the main body. A pin is provided on the main body corresponding to the shaft portion, with its bottom end extending downward beyond the lower surface of the shaft portion and forming a protruding section. The B end of the main body has a pin movable clearance groove to allow the protruding section to rotate around the axis of the shaft portion. A driving groove is provided at the bottom of the main body.

2. The chain block as described in claim 1, characterized in that: The main body has a mounting hole at the position corresponding to the shaft portion, and the pin is fixedly inserted into the mounting hole; the mounting hole extends downward from the top surface of the main body and penetrates the shaft portion; the upper section of the mounting hole forms a recessed stepped hole; the head of the pin is blocked on the stepped surface of the stepped hole, and its bottom end extends downward out of the lower surface of the shaft portion to form the protruding section.

3. The chain block as described in claim 1, characterized in that: The pin movable clearance groove extends downward through the bottom of the body.

4. The chain block as described in claim 1, characterized in that: The main body has a first protrusion protruding to the left on the side of end A near the top surface. End B, located on the left side of the shaft assembly groove, has a second limiting groove that conforms to the first protrusion and is used to accommodate and limit the range of motion of the first protrusion. The opening of the second limiting groove is inclined upward. The main body has a second protrusion protruding to the right on the side of end B near the bottom surface. End A, located on the right side of the shaft part, has a first limiting groove that conforms to the second protrusion and is used to accommodate and limit the range of motion of the second protrusion. The opening of the first limiting groove is inclined downward.

5. The chain block as described in claim 4, characterized in that: The top surface of the first protrusion has a first arc-shaped mating surface that bends downward in the left direction, and one side wall of the second limiting groove is designed as an arc-shaped structure that mates with the first arc-shaped mating surface; the bottom surface of the second protrusion has a second arc-shaped mating surface that bends upward in the right direction, and one side wall of the first limiting groove is designed as an arc-shaped structure that mates with the second arc-shaped mating surface.

6. The chain block as described in claim 1, characterized in that: When the two chain blocks are assembled together, the shaft portion of the right chain block is rotatably assembled in the shaft assembly groove of the left chain block, and the protruding section of the pin of the right chain block extends into the pin movable clearance groove of the left chain block. The pin on the right chain block restricts the relative movement of the two chain blocks in the front-back direction.

7. The chain block as described in claim 4, characterized in that: When the two chain blocks are assembled together, the second protrusion of the left chain block extends into the first limiting groove of the right chain block, and the first protrusion of the right chain block extends into the second limiting groove of the left chain block.

8. The chain block as described in claim 1, characterized in that: The opening of the drive groove faces downward and has a first wall and a second wall that are opposite to each other. The second wall is the drive side. A third protrusion is provided on the second wall that protrudes toward the drive groove side. The third protrusion and the top wall of the drive groove together form a tip limiting groove.

9. The chain block as described in claim 1, characterized in that: A positioning element is provided on the top surface of the main body.

10. A chain, characterized in that: It includes a plurality of chain blocks as described in any one of claims 1 to 5, 7, and 9, wherein two adjacent chain blocks are rotatably connected by the shaft portion engaging with the shaft mounting groove, and the relative forward and backward movement of the two adjacent chain blocks is restricted by the pin.

11. A chain conveyor device, characterized in that: It includes a first rotating wheel and a second rotating wheel, and a chain as described in claim 10, the chain being wound between the first rotating wheel and the second rotating wheel; the opening of the driving groove is provided with a downward-facing horn-shaped bevel structure, and a plurality of transmission protrusions that cooperate with the horn-shaped bevel structure in the driving groove are provided at equal angles around the circumferential surfaces of the first rotating wheel and the second rotating wheel.

12. A chain conveyor device, characterized in that: Includes the chain as described in claim 10 and a drive assembly for driving the chain to move horizontally; The opening of the drive groove faces downward and has a first wall surface and a second wall surface that are opposite to each other. A third protrusion is provided on the second wall surface that protrudes toward the drive groove side. A tip limiting groove is formed between the third protrusion and the top wall of the drive groove. The drive assembly includes a power source and a drive member that is driven by the power source to move left and right. The top of the drive member is provided with a drive part that cooperates with the drive groove at the bottom of the chain block. The top right side of the drive part forms a pointed protrusion that protrudes to the right. When the drive part is in action, its pointed protrusion is engaged in the pointed limiting groove, which drives the chain block to move horizontally synchronously and at the same time restricts the vertical freedom of the chain block.

13. The chain conveyor device as described in claim 12, characterized in that: The driving component has a first section and a second section arranged in an L-shape. The first section extends horizontally and the second section extends vertically. The middle part of the driving component is rotatably mounted on a mounting block via a rotating shaft. The driving part is fixedly mounted on the first section. An elastic element is provided below the first section to push it upward, so that the first section maintains an upward rotational trend.

Images