A modular plastic conveyor belt anti-extension connection structure

Abstract

The present invention discloses an anti-extension connection structure of a modular plastic conveyor mesh belt, relates to the technical field of conveyor belts, and aims to solve the technical problem that the inner side walls of adjacent through holes have a large shear force on a connecting rod. The key points of the technical solution are as follows: it comprises two adjacent chain link blocks, both sides of the chain link blocks are provided with connecting protrusions, and the chain link block is located between the two adjacent connecting protrusions to form a connecting gap; the connecting protrusion is penetrated by a connecting hole along the length direction of the chain link block, and a connecting rod is arranged in the connecting hole; fixed blocks are arranged at the mutually fitting positions of the two adjacent connecting protrusions, and abutment plates that can abut against the other fixed block are respectively arranged on the two fixed blocks; the abutment plate is located on the side of the fixed block away from the chain link block; because in this process, the abutment plate abuts against the fixed block, the inner side wall of the connecting hole reduces the extrusion force on the connecting rod, thereby reducing the shear force on the connecting rod.

Description

Technical Field

[0001] The present invention relates to the technical field of conveyor belts, and more particularly to an anti-extension connection structure of a modular plastic conveyor mesh belt. Background Art

[0002] Plastic conveyor mesh belts use static friction to transport materials in a friction-driven manner; plastic conveyor mesh belts can form a material conveying process from the initial feeding point to the final unloading point on a certain conveyor line.

[0003] The existing Chinese patent with authorization announcement number CN205589873U provides a small-pitch modular plastic conveyor belt, which includes long mesh belt blocks and short mesh belt blocks, which are generally called chain link blocks; teeth are integrally formed on both sides of the chain link blocks, and the teeth are generally called connecting protrusions; the number of connecting protrusions is several, and the connecting protrusions are arranged along the length direction of the chain link blocks; tooth grooves are formed between adjacent connecting protrusions for the connection protrusion on the other chain link block to be inserted; each connecting protrusion is penetrated by a through hole for the string to be inserted, and the string is generally called a connecting rod; when the chain blocks are connected, the adjacent two chain link blocks are spliced, and the through holes are kept corresponding, and then the connecting rod is inserted into the through hole.

[0004] However, during use, the link blocks are subjected to the pulling force of the sprocket, so that the inner side walls of the adjacent through holes exert a shear force on the connecting rod, causing damage to the connecting rod, so there is room for improvement. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the object of the present invention is to provide an anti-extension connection structure of a modular plastic conveyor mesh belt, which has the advantage of effectively reducing the shear force generated on the connecting rod.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A modular plastic conveyor belt anti-extension connection structure includes two adjacent link blocks, each of which is provided with a connecting protrusion on both sides of the link block, and the link block is located between the two adjacent connecting protrusions to form a connecting gap; the connecting protrusion is provided with a connecting hole along the length direction of the link block, and a connecting rod is provided in the connecting hole; a fixing block is provided at the mutually abutting position of the two adjacent connecting protrusions, and each of the two fixing blocks is provided with an abutment plate that can abut against the other fixing block; the abutment plate is located on the side of the fixing block away from the link block.

[0008] By adopting the above technical solution, during use, the adjacent chain link blocks are subjected to a pulling force along their width direction, and the inner side wall of the connecting hole gradually moves to the outer side wall of the connecting column, and generates an extrusion force on the outer side wall of the connecting column; the forces exerted on the connecting rod by the two adjacent connecting holes are in opposite directions, thereby generating a shear force on the connecting rod; because in this process, the abutment plate and the fixed block abut against each other, the extrusion force of the inner side wall of the connecting hole on the connecting rod is reduced, thereby reducing the shear force on the connecting rod.

[0009] Furthermore, the fixing block is cylindrical and is coaxially arranged with the connecting hole.

[0010] By adopting the above technical solution, when two adjacent chain link blocks rotate relative to each other, the cylindrical fixing block and the abutment plate will not interfere with each other, so that the fixing block rotates more smoothly.

[0011] Furthermore, the abutment plate is arc-shaped, and the abutment plate and the fixing block are coaxially arranged.

[0012] By adopting the above technical solution, when the abutting plate abuts against the fixed block, the inner side wall of the arc plate abuts against the outer side wall of the fixed block, thereby increasing the contact area between the abutting plate and the fixed block and delaying the wear efficiency of the abutting plate.

[0013] Furthermore, a support block is integrally formed on one side of the connecting protrusion away from the fixing block, and the support block is fitted with the adjacent connecting protrusion.

[0014] By adopting the above technical solution, when the abutting plate abuts against the fixing block, the supporting block abuts against the adjacent connecting protrusion, thereby reducing the deformation of the connecting protrusion.

[0015] Furthermore, the support block is cylindrical and is coaxially arranged with the connecting hole.

[0016] By adopting the above technical solution, the support block rotates along the connecting hole as the axis, the friction lines between the support block and the connecting protrusion are arc-shaped, and the support block can slide smoothly relative to the connecting protrusion.

[0017] Furthermore, a guide protrusion is provided on the side wall of the fixing block away from the corresponding chain link block, and the guide protrusion is arranged along the circumference of the fixing block; and a guide groove is provided on the inner side wall of the abutment plate for inserting the guide protrusion.

[0018] By adopting the above technical solution, the guide protrusion is inserted into the guide groove, which effectively reduces the axial movement of adjacent fixed blocks along the fixed blocks and improves the stability of adjacent chain link blocks during rotation.

[0019] Furthermore, the fixing block is provided with a sliding groove at the guide protrusion for the guide protrusion to slide radially along the fixing block, and an elastic member is provided between the bottom wall of the sliding groove and the guide protrusion for pushing the outer side of the guide protrusion out of the sliding groove.

[0020] By adopting the above technical solution, when the connecting protrusion needs to be inserted into the connecting gap, the guide protrusion can be pressed into the sliding groove, and the guide protrusion will not interfere with the abutment plate, so that the connecting protrusion can smoothly enter the connecting gap.

[0021] Furthermore, the elastic member is a rubber block.

[0022] By adopting the above technical solution, the force exerted by the rubber block on the guide protrusion is more balanced, so that both ends of the guide protrusion can be inserted into the guide groove.

[0023] Furthermore, a deformation cavity is provided in the rubber block.

[0024] By adopting the above technical solution, the deformed cavity effectively makes the rubber block softer, so as to facilitate pressing the guide protrusion into the sliding groove.

[0025] Furthermore, the outer side wall of the guide protrusion facing the abutting plate is provided with guide surfaces at both ends thereof.

[0026] By adopting the above technical solution, when the guide protrusion is inserted into the guide groove along the circumferential direction of the fixing block, the guide surface plays a guiding role, so that the guide protrusion can be inserted into the guide groove easily.

[0027] In summary, the present invention has the following beneficial effects:

[0028] 1. When in use, adjacent chain link blocks are subjected to pulling force along their width direction, and the abutment plates and fixed blocks abut against each other, thereby reducing the shear force of the connecting holes on the connecting rods;

[0029] 2. The setting of the guide protrusion and the guide groove effectively improves the stability of the adjacent chain link blocks along the axial direction of the connecting hole and increases the service life of the chain link blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram of an anti-extension connection structure of a modular plastic conveyor mesh belt in an embodiment;

[0031] Figure 2 This is a schematic diagram illustrating the connection structure between two adjacent link blocks in an embodiment;

[0032] Figure 3 This is a disassembled schematic diagram illustrating the structural relationship between the fixing block and the abutting plate in the embodiment;

[0033] Figure 4This is a disassembled schematic diagram illustrating the positional relationship among the sliding groove, the rubber block, and the guide protrusion in the embodiment;

[0034] Figure 5 It is a cross-sectional view used to illustrate the internal structure of the rubber block in the embodiment.

[0035] In the figure: 1. Chain link block; 11. Connection gap; 12. Connection protrusion; 121. Support block; 122. Connection hole; 2. Connecting rod; 3. Fixed block; 31. Sliding groove; 311. Rubber block; 3111. Deformation cavity; 4. Abutment plate; 41. Guide groove; 5. Guide protrusion; 51. Guide surface. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below with reference to the accompanying drawings.

[0037] Example:

[0038] A modular plastic conveyor belt anti-extension connection structure, referring to Figure 1 It includes two adjacent link blocks 1, each of which is provided with a connecting protrusion 12 on both sides of the link block 1, and the connecting protrusion 12 is integrally formed with the link block 1; a connecting gap 11 is formed between the two adjacent connecting protrusions 12 of the link block 1 to allow the connecting protrusion 12 on the other link block 1 to be inserted.

[0039] Reference Figure 2 The connecting protrusion 12 is provided with a connecting hole 122 along the length direction of the chain link block 1, and a connecting rod 2 is provided in the connecting hole 122 for connecting two adjacent chain link blocks 1.

[0040] Reference Figure 2 and Figure 3 A fixing block 3 is provided at the joint between two adjacent connecting protrusions 12, and the fixing block 3 is integrally formed with the corresponding connecting protrusion 12; an abutment plate 4 is integrally formed on each of the fixing blocks 3; the abutment plate 4 is located on the side of the fixing block 3 away from the corresponding chain link block 1; when two adjacent chain link blocks 1 are subjected to tension along the width direction of the chain link block 1, the abutment plate 4 abuts against the other fixing block 3.

[0041] Reference Figure 3 The fixing block 3 is cylindrical and is coaxially arranged with the connecting hole 122; when the two chain link blocks 1 rotate relative to each other, the cylindrical fixing block 3 will not affect the rotation of the abutment plate 4; the abutment plate 4 is arc-shaped and is coaxially arranged with the fixing block 3; when the abutment plate 4 abuts against the fixing block 3, the contact area between the abutment plate 4 and the fixing block 3 is increased.

[0042] Reference Figure 3A support block 121 is integrally formed on the side of the connecting protrusion 12 away from the fixing block 3. The support block 121 abuts against the adjacent connecting protrusion 12. When the abutment plate 4 abuts the fixing block 3, the support block 121 abuts against the abutting connecting protrusion 12, thereby reducing deformation of the connecting protrusion 12. The support block 121 is cylindrical and is coaxial with the connecting hole 122, so that the support block 121 can slide smoothly against the supporting protrusion.

[0043] Reference Figure 3 and Figure 4 A guide protrusion 5 is provided on the side wall of the fixed block 3 away from the corresponding chain link block 1, and the guide protrusion 5 is arranged circumferentially along the fixed block 3; a guide groove 41 is provided on the inner side wall of the abutment plate 4 for the guide protrusion 5 to be inserted; the guide protrusion 5 slides in the guide groove 41, thereby reducing the axial movement of the adjacent fixed block 3 along the fixed block 3.

[0044] Reference Figure 3 and Figure 4 The fixed block 3 is provided with a sliding groove 31 at the guide protrusion 5, so that the guide protrusion 5 can slide radially along the fixed block 3; an elastic member is provided between the bottom wall of the sliding groove 31 and the guide protrusion 5, and the elastic member uses elastic force to push the outer wall of the guide protrusion 5 out of the sliding groove 31, thereby ensuring that the guide protrusion 5 is inserted into the guide groove 41; when two adjacent supporting protrusions cooperate, by pressing the guide protrusion 5, the guide protrusion 5 is facilitated to be recessed into the sliding groove 31, thereby facilitating the connection protrusion 12 to be inserted into the connection gap 11.

[0045] Reference Figure 4 and Figure 5 The elastic member is preferably a rubber block 311, which evenly applies force to the guide protrusion 5. A deformation cavity 3111 is provided inside the rubber block 311 to make the rubber block 311 softer, making it easier to press the guide protrusion 5 into the sliding groove 31. Both sides of the rubber block 311 are connected to the bottom wall of the sliding groove 31 and the guide protrusion 5 by bonding.

[0046] Reference Figure 4 The guide protrusion 5 is directed toward the outer wall of the abutment plate 4 and is provided with guide surfaces 51 at both ends. When the guide protrusion 5 is inserted into the guide groove 41 along the circumference of the fixed block 3, the guide surface 51 plays a guiding role to facilitate the guide protrusion 5 to slide into the guide groove 41.

[0047] Here’s how it works:

[0048] When adjacent chain link blocks 1 are subjected to a pulling force along their width direction, the connecting protrusions 12 on the two chain link blocks 1 separate from each other. At this time, the fixing block 3 moves together with the connecting protrusion 12; at this time, the abutment plate 4 abuts against the fixing block 3, thereby reducing the abutment force of the inner side wall of the connecting hole 122 on the connecting rod 2, thereby effectively reducing the shear force generated by the inner side wall of the adjacent connecting hole 122 on the connecting rod 2.

[0049] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An anti-extension connection structure of a modular plastic conveyor mesh belt, comprising two adjacent chain link blocks (1), both sides of the chain link blocks (1) are provided with connection protrusions (12), the chain link block (1) is located between the two adjacent connection protrusions (12) to form a connection gap (11); the connection protrusion (12) is provided with a connection hole (122) penetrating along the length direction of the chain link block (1), and a connection rod (2) is provided in the connection hole (122); the characteristics are: A fixing block (3) is provided at the mutually abutting position of two adjacent connecting protrusions (12); and an abutting plate (4) which can abut against the other fixing block (3) is provided on each of the two fixing blocks (3); the abutting plate (4) is located on the side of the fixing block (3) away from the chain link block (1); the fixing block (3) is cylindrical and is coaxially arranged with the connecting hole (122); the abutting plate (4) is arc-shaped and is coaxially arranged with the fixing block (3); a supporting block (121) is integrally formed on the side of the connecting protrusion (12) away from the fixing block (3), and the supporting block (121) abuts against the adjacent connecting protrusion (12); when the abutting plate (4) abuts against the chain link block (1), the supporting block (121) is in contact with the adjacent connecting protrusion (12); and when the abutting plate (4) abuts against the fixing hole (122), the supporting block (121) is in contact with the adjacent connecting protrusion (12). When the fixed blocks (3) abut against each other, the support block (121) abuts against the adjacent connecting protrusion (12); a guide protrusion (5) is provided on the side wall of the fixed block (3) away from the corresponding chain link block (1), and the guide protrusion (5) is arranged along the circumference of the fixed block (3); a guide groove (41) for the guide protrusion (5) to be inserted is provided on the inner side wall of the abutment plate (4); a sliding groove (31) for the guide protrusion (5) to slide radially along the fixed block (3) is provided at the guide protrusion (5), and an elastic member for pushing the outer side of the guide protrusion (5) out of the sliding groove (31) is provided between the bottom wall of the sliding groove (31) and the guide protrusion (5).

2. The anti-extension connection structure of a modular plastic conveyor belt according to claim 1, characterized in that: The support block (121) is cylindrical and is coaxially arranged with the connecting hole (122).

3. The anti-extension connection structure of a modular plastic conveyor belt according to claim 1, characterized in that: The elastic member is a rubber block (311).

4. The anti-extension connection structure of a modular plastic conveyor belt according to claim 3, characterized in that: A deformation cavity (3111) is provided in the rubber block (311).

5. The anti-extension connection structure of a modular plastic conveyor belt according to claim 1, characterized in that: The outer side wall of the guide protrusion (5) facing the abutment plate (4) and both ends thereof are provided with guide surfaces (51).

Images