Flat-top chain with built-in pin shaft self-locking structure

Abstract

The utility model relates to the technical field of flat-top chains, in particular to a flat-top chain with a built-in pin shaft self-locking structure, which comprises a main body mechanism forming the flat-top chain, and the main body mechanism is provided with a connecting mechanism used for simply and conveniently disassembling and assembling a plurality of flat-top chains. According to the flat-top chain, the connecting mechanism is arranged, so that the flat-top chain can be simply and conveniently disassembled and assembled, the two chain plates are connected end to end, the fixing block is attached to the two connecting blocks, the through hole a is opposite to the through hole b, the round pin shaft is inserted into the through hole, and when the round pin shaft is completely located in the two special-shaped holes, the two chain plates are pulled front and back respectively, so that the flat-top chain can be disassembled and assembled. When the flat-top chains are assembled and fixed, the round pin shaft moves into the other semicircular hole from one semicircular hole in the special-shaped holes, the round pin shaft is fixed in the two special-shaped holes, at the moment, the round pin shaft and the two through holes b deviate, the flat-top chains cannot automatically fall off in the transportation state, and therefore the two flat-top chains are assembled and fixed, time is saved, and the assembly efficiency is improved. And the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flat top chains, in particular to a flat top chain with a built-in pin self-locking structure. Background Art

[0002] Common pins are divided into roll pins and D-shaped pins. During their use, the diameters of the pins are mostly subdivided according to the different materials of the flat top chains. If the diameter is too large, it will cause the product to crack; if the diameter is too small, it is easy to loosen and fall off, with great limitations. In the prior art, the pins of flat top chains are usually assembled and disassembled by strongly squeezing the pins, which is rather laborious. At the same time, under the interference fit assembly, it is easy to cause the plastic products to crack, which is not conducive to wide use. Summary of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides a flat top chain with a built-in pin self-locking structure, which has the ability to conveniently disassemble and assemble the device, making the production safety more guaranteed, and solving the problems that it is rather laborious and dangerous when stamping pins in the prior art.

[0004] To solve the above technical problems, the utility model provides the following technical solutions:

[0005] A flat top chain with a built-in pin self-locking structure includes a main body mechanism that constitutes the flat top chain. The main body mechanism includes chain plates. A connecting mechanism for conveniently disassembling and assembling multiple flat top chains is arranged on the main body mechanism. The connecting mechanism includes two connecting blocks. One side of the chain plate is fixedly connected with a fixed block, and a through hole a is opened in the fixed block. The other opposite sides of the two connecting blocks are both provided with through holes b, and a special-shaped hole is opened on the opposite side of each of the two connecting blocks. A round pin is installed in the through hole a.

[0006] Preferably, the special-shaped hole is composed of two semi-circular holes and a rectangular hole, and the length of the round pin is the same as the maximum distance between the two special-shaped holes.

[0007] Preferably, the diameters of the two semi-circular holes are the same as the diameter of the through hole a and are slightly larger than the diameter of the round pin.

[0008] Preferably, an arc-shaped rubber pad a and an arc-shaped rubber pad b are installed in the special-shaped hole, and the inner diameters of the arc-shaped rubber pad a and the arc-shaped rubber pad b are the same as the diameter of the round pin.

[0009] Preferably, the distance between the two connecting blocks is the same as the length of the fixed block.

[0010] Preferably, a through groove is opened on one side of the chain plate, and the two connecting blocks are both fixedly connected in the through groove.

[0011] By the above technical solution, the utility model provides a flat-top chain with a built-in pin self-locking structure, which has at least the following beneficial effects:

[0012] 1. By setting up the connecting mechanism in the utility model, the flat-top chains can be simply disassembled and assembled. By connecting the two chain plates end to end, the fixed block and the two connecting blocks are in contact. Align the through hole a and the through hole b, and then insert the round pin into them. When the round pin is completely located in the two special-shaped holes, pull the two chain plates forward and backward respectively, so that the round pin moves from one semi-circular hole in the special-shaped hole to the other semi-circular hole, and the round pin is fixed in the two special-shaped holes. At this time, the position of the round pin relative to the two through holes b is offset, so that the flat-top chain will not fall off by itself during transportation, thus completing the assembly and fixation between the two flat-top chains, saving time and greatly improving the work efficiency.

[0013] 2. By setting the arc-shaped rubber pad a and the arc-shaped rubber pad b in the utility model, the fastening performance of the flat-top chain after assembly is greatly improved. When the round pin moves from one semi-circular hole in the special-shaped hole to the other semi-circular hole, the clamping effect of the arc-shaped rubber pad b on the round pin is greatly improved, further ensuring that the flat-top chain is not easy to fall off during transportation and improving the fixing effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the utility model and form a part of this application:

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a sectional structural schematic diagram of the connecting mechanism of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the connecting mechanism of the utility model;

[0018] Figure 4 It is an exploded view of the connecting mechanism of the utility model.

[0019] Reference Signs:

[0020] 1. Main body mechanism; 101. Chain plate; 102. Through groove; 103. Round pin; 2. Connecting mechanism; 201. Fixed block; 202. Through hole a; 203. Connecting block; 204. Through hole b; 205. Special-shaped hole; 206. Arc-shaped rubber pad a; 207. Arc-shaped rubber pad b. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] The commonly used pin shafts are divided into two types: roll pin shafts and D-type pin shafts. During the manufacturing process of roll pin shafts, straight knurling and oblique knurling need to be distinguished according to different materials and conveying methods. Straight knurling is generally used for straight conveying with relatively small lateral forces, and oblique knurling is used for curved conveying with relatively large lateral forces. The size of the knurling diameter also needs to be further divided according to the different materials of the flat-top chain. Otherwise, it will seriously affect the use performance of the product. If the diameter is too large, the product will crack, and if the diameter is too small, it is easy to loosen and fall off. The use of D-type pins is similar to the knurling effect and has certain limitations. Currently, the pin shafts of plastic conveying flat-top chains commonly used in the domestic beer and beverage industries are usually assembled and disassembled by the method of vigorously squeezing the pin shafts, which is relatively laborious. At the same time, under the assembly of interference fit, it is easy to cause the plastic products to crack, which is not conducive to wide use. The following describes some embodiments of the present utility model with reference to the accompanying drawings to provide a flat-top chain with an internal pin shaft self-locking structure.

[0023] Embodiment 1:

[0024] In order to reduce the risk of plastic product cracking and make the quality more guaranteed, in combination with Figures 1 - 4 as shown, a flat-top chain with an internal pin shaft self-locking structure is proposed. The main body mechanism 1 and the connecting mechanism 2 form a flat-top chain. The connecting mechanism 2 is arranged on the main body mechanism 1, and the connecting mechanism 2 is used to facilitate the disassembly and assembly of multiple flat-top chains.

[0025] In order to combine and connect multiple flat-top chains, a connecting mechanism 2 is proposed. By installing two connecting blocks 203, a fixing block 201 is fixedly connected to one side of the chain plate 101. A through hole a202 is provided in the fixing block 201. Through holes b204 are provided on the opposite sides of the two connecting blocks 203. Shaped holes 205 are provided on the opposite sides of the two connecting blocks 203. A round pin shaft 103 is installed in the through hole a202. The shaped hole 205 is composed of two semi-circular holes and a rectangular hole. The diameters of the two semi-circular holes are the same as the diameter of the through hole a202 and are slightly larger than the diameter of the round pin shaft 103. The length of the round pin shaft 103 is the same as the maximum distance between the two shaped holes 205. The distance between the two connecting blocks 203 is the same as the length of the fixing block 201. When assembling the flat-top chains, by connecting the two chain plates 101 end to end, the fixing block 201 and the two connecting blocks 203 are in contact. The through hole a202 and the through holes b204 are opposite. At this time, the round pin shaft 103 is inserted into them. When the round pin shaft 103 is completely located in the two shaped holes 205, the two chain plates 101 are pulled forward and backward respectively, so that the round pin shaft 103 moves from one semi-circular hole in the shaped hole 205 to the other semi-circular hole, so that the round pin shaft 103 is fixed in the two shaped holes 205. At this time, the position of the round pin shaft 103 relative to the two through holes b204 is offset, so that the flat-top chain will not fall off by itself during the transportation state, thus completing the assembly and fixation between the two flat-top chains. When disassembling the flat-top chains, the two chain plates 101 connected end to end are bent 90 degrees, and the vertically placed flat-top chain is pressed slightly. When hearing a "click" sound, the through holes b204 on the two chain plates 101 and the center of the round pin shaft 103 are on the same straight line. A tool is inserted into the through hole b204 until the round pin shaft 103 exits the entire chain plate 101, and the chain plates 101 are separated. At the same time, the round pin shaft 103 is easy to process, and the cost is relatively low compared with the roll pin and D-shaped pin. The convenient disassembly and assembly method greatly improves the work efficiency, and there is no need for the assembly requirement of interference fit, greatly reducing the risk of cracking of plastic products and making the quality more guaranteed.

[0026] Embodiment 2:

[0027] On the basis of Embodiment 1, the technical solution proposed in Embodiment 1 is used to solve the problems in the prior art that the pin shaft of the flat-top chain is usually assembled and disassembled by strongly pressing the pin shaft, which is relatively laborious. At the same time, under the interference fit assembly, it is easy to cause the plastic product to crack, which is not conducive to wide use. However, during the disassembly and assembly process, during the movement of the round pin shaft 103, the clamping effect between the round pin shaft 103 and the two semi-circular holes in the shaped hole 205 is unstable, thus affecting the connection effect between the flat-top chains.

[0028] In order to further ensure that the flat-top chain is not easy to fall off during transportation, combined with Figure 1 and Figure 4As shown, an arc-shaped rubber pad a206 and an arc-shaped rubber pad b207 are installed in the special-shaped hole 205. The inner diameters of the arc-shaped rubber pad a206 and the arc-shaped rubber pad b207 are the same as the diameter of the round pin shaft 103. When the round pin shaft 103 moves from one semi-circular hole in the special-shaped hole 205 to another semi-circular hole, the engaging effect of the arc-shaped rubber pad b207 on the round pin shaft 103 can be greatly improved, further ensuring that the flat-top chain is not easily detached during transportation and improving the fixing effect of the device.

[0029] In order to connect the connecting mechanisms 2 between the flat-top chains to each other, a main body mechanism 1 is now proposed. By installing a chain plate 101, a through groove 102 is provided on one side of the chain plate 101, and two connecting blocks 203 are fixedly connected in the through groove 102. The fixing block 201 and the two connecting blocks 203 are fixed by the chain plate 101 and the through groove 102.

[0030] It should be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flat top chain with a built-in pin self-locking structure, comprising a main body mechanism (1) constituting the flat top chain, the main body mechanism (1) comprising a chain plate (101), characterized in that: The main body mechanism (1) is provided with a connecting mechanism (2) for easily assembling and disassembling a plurality of flat top chains; The connection mechanism (2) comprises two connection blocks (203); one side of the chain plate (101) is fixedly connected to a fixed block (201); a through hole a (202) is provided on the fixed block (201); the other side opposite to the two connection blocks (203) is provided with a through hole b (204); the other side opposite to the two connection blocks (203) is provided with a special-shaped hole (205); and a round pin shaft (103) is installed in the through hole a (202).

2. A flat top chain with a built-in pin self-locking structure according to claim 1, characterized in that: The special-shaped hole (205) is composed of two semicircular holes and one rectangular hole, and the length of the round pin shaft (103) is the same as the maximum distance between the two special-shaped holes (205).

3. A flat top chain with a built-in pin self-locking structure according to claim 2, characterized in that: The diameters of the two semicircular holes are the same as the diameter of the through hole a (202), and are slightly larger than the diameter of the round pin shaft (103).

4. A flat top chain with a built-in pin self-locking structure according to claim 3, characterized in that: An arc-shaped rubber pad a (206) and an arc-shaped rubber pad b (207) are installed in the special-shaped hole (205), and the inner diameters of the arc-shaped rubber pad a (206) and the arc-shaped rubber pad b (207) are the same as the diameter of the round pin shaft (103).

5. A flat top chain with a built-in pin self-locking structure according to claim 1, characterized in that: The distance between the two connecting blocks (203) is the same as the length of the fixing block (201).

6. A flat top chain with a built-in pin self-locking structure according to claim 1, characterized in that: A through slot (102) is provided on one side of the chain plate (101), and the two connecting blocks (203) are fixedly connected in the through slot (102).

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