Combined cover plate for drag chain and drag chain link using combined cover plate

Abstract

The utility model provides a combined cover plate for a drag chain and a drag chain link using the combined cover plate, and belongs to the field of drag chain structure design. The combined cover plate comprises a connecting strip and connector parts fixedly installed at the two ends of the connecting strip, and the connecting strip is a long-strip-shaped sectional material. And the end part of the connecting strip is spliced and matched with the connector part. By optimizing the structure of the cover plate, the production cost of the cover plate can be reduced on the premise of ensuring the quality, and the cover plate has good practicability.

Description

Technical Field

[0001] The utility model relates to the field of drag chain structure design, in particular to a combined cover plate for a drag chain and a drag chain section using the combined cover plate. Background Art

[0002] Drag chains are widely used in many fields such as CNC machine tools, injection molding machines, lifting and transportation equipment, and automated warehouses. They are suitable for reciprocating motion occasions and can pull and protect built-in pipelines, making pipeline layout more orderly. Drag chains are divided into steel drag chains, plastic drag chains, etc. The existing plastic drag chains are composed of multiple drag chain sections hinged in sequence. The drag chain sections are hollow frame structures, and the upper and lower parts of the drag chain sections have cover plates. The cover plates can be used to connect two oppositely arranged side chain plates. Drag chains have different application occasions and many specifications according to width differences. At present, most of the cover plates are injection molded in one piece. Different lengths of cover plates need to be injected using different injection molds. In order to meet the production of various cover plates, manufacturers need to be equipped with a large number of injection molds, which leads to high production costs. Utility Model Content

[0003] The utility model provides a combined cover plate for a drag chain and a drag chain section using the same, which reduces the number of injection molds and reduces the production cost of an enterprise by optimizing the cover plate structure.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] In a first aspect, the utility model provides a combined cover plate for a drag chain, comprising a connecting strip and joint parts fixedly installed at both ends of the connecting strip, wherein the connecting strip is a long strip-shaped profile.

[0006] In some embodiments, the end of the connecting strip is plug-fitted into the joint portion.

[0007] In some embodiments, the connecting strip has sockets at both ends, and the joint portion is provided with an insert block, and the sockets and the insert block are plugged into each other;

[0008] Alternatively, the joint portion is provided with a socket, and the socket is inserted into the end of the connecting strip.

[0009] In some embodiments, the connection between the end of the connecting strip and the joint portion is an interference fit.

[0010] In some embodiments, a positioning slot is provided on the joint portion, and a positioning platform is stamped on the connecting strip, and the positioning platform cooperates with the positioning slot to form a locking state.

[0011] In some embodiments, the connecting strip and the joint portion are locked and connected by rivets or screws.

[0012] In some embodiments, the connecting strip has a through cavity extending along its length direction; and the side surface of the connecting strip has a strip-shaped flange extending along its length direction.

[0013] In some embodiments, ribs extending along the length direction of the connecting strip are provided in the through cavity.

[0014] In some embodiments, the connecting strip is a metal profile or a plastic profile; and the joint portion is made of plastic or metal.

[0015] In a second aspect, the utility model provides a tow chain link, comprising two side chain plates arranged opposite to and in parallel, the two side chain plates being connected via a cover plate, and the cover plate is a combined cover plate as described in any of the above embodiments.

[0016] The utility model has the positive effects: the cover plate structure is optimized in the utility model, the one-piece injection molding structure of the cover plate is abandoned, and a split combination structure is adopted; during production, the prepared long strip profile is cut into the required length according to the need to make a connecting strip, and then the connecting strip and the joint part are assembled together to make the required cover plate for use on the drag chain section; there is no need to equip a set of injection molds for each cover plate of different lengths, thereby reducing the number of injection molds, and then effectively reducing the production cost of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the structure of the first combined cover plate in the utility model;

[0019] Figure 2 for Figure 1 An exploded view of the combined cover shown in;

[0020] Figure 3 This is a schematic diagram of the structure of the second combined cover plate in the utility model;

[0021] Figure 4 for Figure 3 An exploded view of the combined cover shown in;

[0022] Figure 5 This is a schematic structural diagram of the third combined cover plate in the utility model;

[0023] Figure 6 for Figure 5An exploded view of the combined cover shown in;

[0024] Figure 7 This is a schematic structural diagram of the fourth combined cover plate in the utility model;

[0025] Figure 8 This is a structural schematic diagram of the fifth combined cover plate in the utility model;

[0026] Fig. 9 It is a structural schematic diagram of the tow chain section in the utility model.

[0027] The reference numerals shown in the figure are: 1-connecting strip; 11-socket; 12-positioning card platform; 13-through cavity; 14-strip flange; 15-rib; 2-joint; 21-insert block; 22-positioning card slot; 3-side chain plate; 4-cover plate; 5-rivet; 6-screw; 7-partition. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present utility model are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. In the present utility model, unless otherwise clearly specified and limited, the terms "connection", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integral whole; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0031] The combined cover plate for the drag chain in this embodiment is as follows Figures 1 to 8As shown, it includes a connecting strip 1 and a joint portion 2 fixedly installed at both ends of the connecting strip 1, and the joint portion 2 is used to connect with the side chain plate of the drag chain link, and has a connecting structure suitable for connecting with the side chain plate. The connecting structure is a prior art and is not described in detail in this embodiment.

[0032] In this embodiment, the connecting strip 1 is a long strip profile; the connecting strip 1 can be a metal profile (including but not limited to aluminum alloy profiles, stainless steel profiles, etc.), or a plastic profile (including but not limited to fiberglass profiles, PVC plastic profiles, etc.); the joint part 2 is made of plastic material and can be formed by injection molding; of course, the joint part 2 can also be made of metal material (such as stainless steel or aluminum). In this embodiment, the cover plate structure is optimized and a split assembly structure is adopted. During production, the prepared long strip profile is cut into the required length according to the needs to make the connecting strip 1, and then the connecting strip 1 and the joint part 2 are assembled together to make the required cover plate for use on the drag chain section. There is no need to equip each cover plate of different lengths with a set of injection molds, thereby reducing the number of injection molds and further reducing the production cost of the enterprise.

[0033] In order to strengthen the connection between the connecting strip 1 and the joint part 2, it is further provided that the end of the connecting strip 1 and the joint part 2 form a plug-in fit.

[0034] For details, see Figure 2 , Figure 4 and Figure 6 As shown, the connecting strip 1 has sockets 11 at both ends, and the joint part 2 is provided with an insert block 21, and the sockets 11 and the insert block 21 are plugged into each other; as a modified implementation scheme, in actual operation, a socket can also be provided on the joint part 2, and the socket can be inserted into the end of the connecting strip 1.

[0035] In order to further enhance the connection strength between the connecting strip 1 and the joint part 2, the plug-in between the end of the connecting strip 1 and the joint part 2 is set to be an interference fit, so that the connecting strip 1 and the joint part 2 are tightly fitted after being plugged in.

[0036] like Figure 5 and Figure 6 As shown, in some embodiments, a positioning slot 22 is provided on the joint part 2, and a positioning platform 12 is stamped on the connecting strip 1. The positioning platform 12 cooperates with the positioning slot 22 to form a lock to prevent the joint part 2 from detaching from the connecting strip 1.

[0037] In some other embodiments, the connecting strip 1 and the joint portion 2 are locked and connected by rivets 5, such as Figure 1 and Figure 2 As shown; as a variation, the connecting strip 1 and the joint portion 2 are locked and connected by screws 6, and the screws 6 pass through the screw holes on the connecting strip 1 and are screwed to the joint portion 2, as shown Figure 3 and Figure 4 shown.

[0038] In some embodiments, in order to reduce material usage and reduce weight, a through cavity 13 extending along the length direction of the connecting strip 1 may be provided in the through cavity 13 ; and in order to ensure the strength of the connecting strip 1 , a rib 15 extending along the length direction of the connecting strip 1 may be provided in the through cavity 13 .

[0039] In order to adapt to the installation of the partition 7 in the tow chain section when the cover plate is applied to the tow chain section, the side of the connecting strip 1 has a strip flange 14 extending along its length direction. When the partition 7 is fixed in the tow chain section, the buckle at the end of the partition 7 can be snapped into the strip flange 14, thereby positioning the partition 7.

[0040] In the second aspect, this embodiment also provides a drag chain link, see Fig. 9 As shown, it includes two side chain plates 3 arranged opposite to and in parallel, and the two side chain plates 3 are connected by a cover plate 4. The cover plate 4 adopts the combined cover plate described above. The drag chain section has all the advantages of the cover plate in the above embodiment; further, a partition plate 7 is provided between the upper and lower cover plates 4 in the drag chain section. The function of the partition plate 7 is to separate a relatively independent space inside the drag chain section so as to adapt to the layout of different pipelines when the customer installs and uses it.

[0041] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A combined cover plate for a drag chain, characterized in that: It comprises a connecting strip (1) and joint parts (2) fixedly mounted on both ends of the connecting strip (1); the connecting strip (1) is a long strip-shaped profile.

2. The combined cover plate for a drag chain according to claim 1, characterized in that: The end of the connecting strip (1) is plug-fitted into the joint portion (2).

3. The combined cover plate for a drag chain according to claim 2, characterized in that: The connecting strip (1) has sockets (11) at both ends, and the joint portion (2) is provided with an insert block (21), and the sockets (11) and the insert block (21) are plug-connected; Alternatively, the joint portion (2) is provided with a socket, and the socket is inserted into the end of the connecting strip (1).

4. The combined cover plate for a drag chain according to claim 2 or 3, characterized in that: The plug-in connection between the end of the connecting strip (1) and the joint part (2) is an interference plug-in connection.

5. The combined cover plate for a drag chain according to claim 2 or 3, characterized in that: The joint portion (2) is provided with a positioning slot (22), the connection strip (1) is stamped with a positioning platform (12), and the positioning platform (12) cooperates with the positioning slot (22) to form a locking system.

6. The combined cover plate for a drag chain according to claim 1, characterized in that: The connecting strip (1) and the joint portion (2) are fixedly connected via rivets (5) or screws (6).

7. The combined cover plate for a drag chain according to claim 1, characterized in that: The connecting strip (1) has a through cavity (13) extending along its length direction; and the side surface of the connecting strip (1) has a strip-shaped flange (14) extending along its length direction.

8. The combined cover plate for a drag chain according to claim 7, characterized in that: A rib (15) extending along the length direction of the connecting strip (1) is provided in the through cavity (13).

9. The combined cover plate for a drag chain according to claim 1, characterized in that: The connecting strip (1) is a metal profile or a plastic profile; the joint portion (2) is made of plastic or metal.

10. A tow chain link, comprising two side chain plates (3) arranged opposite to each other and in parallel, the two side chain plates (3) being connected via a cover plate (4), characterized in that: The cover plate (4) is the combined cover plate according to any one of claims 1 to 9.

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