Chain locking device

Abstract

The utility model discloses a chain locking device which comprises a first connector and a second connector, the first connector and the second connector are connected in an inserted mode, and a tensioning mechanism which drives the second connector to conduct telescopic adjustment in the first connector is arranged between the first connector and the second connector in a matched mode. The other end of the first connector and the other end of the second connector are respectively provided with a U-shaped notch, one side face of each U-shaped notch is in threaded connection with a guide rod used for being connected with a fixed chain in an inserted mode, and the other inner side wall of each U-shaped notch is provided with a groove used for being connected with the end of the corresponding guide rod in an inserted mode. Through cooperation of the rack, the gear, the rotating shaft and the rotating wheel, a user can easily and accurately adjust the telescopic degree of the second connector in the first connector, and therefore fine control over the tensioning degree of the chain is achieved. Therefore, the chain locking device can adapt to various bound objects with different sizes and shapes, and the binding stability and reliability are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chain lockers, in particular to a chain locker. Background Art

[0002] Chain locker is a tool commonly used for tying items, in which the chain is made up of many rings interlocked. The function of the chain locker is to connect the two ends of the chain to effectively tie and fix the items.

[0003] In the prior art, traditional chain lockers have significant defects. In particular, they are inconvenient in terms of tension adjustment. The structural design of traditional chain lockers is often relatively simple, and lacks an effective tension adjustment mechanism, which makes it difficult to flexibly adjust the tension according to the size and shape of the tied objects in actual use. This not only affects the stability and reliability of the binding, but may also cause damage to the objects due to insufficient or excessive tension.

[0004] For example, in some scenarios where precise control of tension is required, traditional chain locks cannot meet the requirements, which may cause items to become loose or shifted during transportation or storage, thus causing safety hazards and economic losses. In addition, due to the inconvenience of tension adjustment, the operation process is also cumbersome, which increases the user's work difficulty and time cost. Utility Model Content

[0005] 1. Technical issues

[0006] The utility model provides a chain locker, aiming to solve the problem of deficiencies in tension adjustment of traditional chain lockers.

[0007] (II) Technical content

[0008] In order to solve the above technical problems, the technical solution of the utility model is: a chain locker, comprising a first connector and a second connector, the first connector and the second connector are plug-connected, and a tensioning mechanism is matched between the first connector and the second connector to drive the second connector to telescope and adjust inside the first connector, the other ends of the first connector and the second connector are both provided with a U-shaped notch, one side of the U-shaped notch is threadedly connected to a guide rod for plugging in and fixing the chain, and the other inner wall of the U-shaped notch is provided with a groove for plugging in the end of the guide rod.

[0009] Furthermore, an inserting cavity is provided at the end of the first connector, and an inserting plate is fixedly provided at the end of the second connector, and the inserting plate extends into the inserting cavity to be plugged with the first connector.

[0010] Furthermore, the tensioning mechanism includes a rack arranged on the plug plate, and also includes a shell fixedly arranged on the upper end of the first connector, a rotating shaft is rotatably provided inside the shell, a gear is fixedly provided at the center of the rotating shaft, the gear is meshed with the rack, a rotating wheel is fixedly provided at one end of the rotating shaft extending to the shell, and a limiting mechanism is matched between the rotating wheel and the outer side surface of the first connector.

[0011] Furthermore, the limiting mechanism includes a plurality of jacks arranged on the rotating wheel, and also includes a threaded hole arranged on the side of the first connector, and a fixing bolt is inserted into the jack, and the fixing bolt is matched with the threaded hole.

[0012] Furthermore, a rectangular through hole is provided at a position on the first connector corresponding to the gear, through which the gear can extend into the interior of the insertion cavity.

[0013] (III) Technical Effect

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] 1. Convenient and accurate tension adjustment: Through the uniquely designed tensioning mechanism, including the coordination of racks, gears, shafts and wheels, the user can easily and accurately adjust the extension and retraction degree of the second connector inside the first connector, thereby achieving fine control of the chain tension. This enables the chain locker to adapt to various sizes and shapes of tied objects, greatly improving the stability and reliability of the binding.

[0016] 2. Simple and efficient operation: Compared with the cumbersome tension adjustment method of traditional chain lockers, the operation of this design is simple and clear. The user only needs to turn the wheel to adjust the tension, and then limit and fix it with the fixing bolt, which saves operation time and energy and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the chain locker of the utility model. Figure 1 .

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the chain locker of the utility model. Figure 2 .

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the chain locker of the utility model. Figure 3 .

[0020] Figure 4 It is a schematic diagram of the top view of the chain locker of the utility model.

[0021] Figure 5 It is a schematic diagram of the cross-sectional structure of the chain locker of the utility model.

[0022] As shown in the figure: 1. first connector; 2. second connector; 3. U-shaped notch; 4. guide rod; 5. groove; 6. insertion cavity; 7. insertion plate; 8. rack; 9. housing; 10. rotating shaft; 11. gear; 12. rotating wheel; 13. jack; 14. threaded hole; 15. fixing bolt; 16. rectangular through hole. DETAILED DESCRIPTION

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside", "center", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction structure and operation. Therefore, they should not be understood as limitations on the present invention.

[0024] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "provided with", "installed", "connected", "connected" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0026] Combined with Figure 1 To Attachment Figure 5 The chain locker comprises a first connector 1 and a second connector 2, which are plug-connected, and a tensioning mechanism for driving the second connector 2 to telescope and adjust inside the first connector 1 is matched between the first connector 1 and the second connector 2. The other ends of the first connector 1 and the second connector 2 are both provided with a U-shaped notch 3, and a guide rod 4 for plugging and fixing a chain is threadedly connected on one side of the U-shaped notch 3, and a groove 5 for plugging the end of the guide rod 4 into the other inner wall of the U-shaped notch 3.

[0027] Reference Figure 5 The first connector 1 has an inserting cavity 6 at its end, and an inserting plate 7 is fixedly provided at the end of the second connector 2 . The inserting plate 7 extends into the inserting cavity 6 and is plugged into the first connector 1 .

[0028] Reference Figure 5The tensioning mechanism includes a rack 8 arranged on the plug plate 7, and also includes a shell 9 fixedly arranged on the upper end of the first connector 1. A rotating shaft 10 is rotatably provided inside the shell 9, and a gear 11 is fixedly provided at the center of the rotating shaft 10. The gear 11 is meshed with the rack 8. A rotating wheel 12 is fixedly provided at one end of the rotating shaft 10 extending to the shell 9, and a limiting mechanism is matched between the rotating wheel 12 and the outer side surface of the first connector 1.

[0029] The rack 8 is set on the plug plate 7, and is meshed with the gear 11 fixed at the center of the shaft 10 and located in the housing 9. The rotating wheel 12 at one end of the shaft 10 is used to rotate, thereby realizing precise control of the extension and retraction of the plug plate 7, thereby adjusting the tension of the chain locker, and the limit mechanism between the rotating wheel 12 and the outer side of the first connector 1 can be effectively fixed after the tension is adjusted in place. This design cleverly combines various components, is not only easy to operate, can accurately adjust the tension to meet different bundling requirements, but also ensures the stability and reliability of the tension state, and improves the overall performance and flexibility of the chain locker.

[0030] Reference Figure 3 The limiting mechanism includes a plurality of jacks 13 disposed on the rotating wheel 12 and a threaded hole 14 disposed on the side of the first connector 1 . A fixing bolt 15 is inserted into the jack 13 , and the fixing bolt 15 is matched with the threaded hole 14 .

[0031] By arranging a plurality of sockets 13 on the rotating wheel 12, in conjunction with the threaded holes 14 on the side of the first connector 1 and the pluggable fixing bolts 15, after adjusting the tension of the chain locker, the fixing bolts 15 can be inserted into the corresponding sockets 13 and screwed into the threaded holes 14, so as to achieve a stable limit on the rotating wheel, effectively prevent the tension change caused by accidental rotation of the rotating wheel, and ensure that the tension state of the chain remains stable during the bundling process, thereby greatly improving the reliability of the chain locker and the durability of the bundling effect.

[0032] Reference Figure 5 A rectangular through hole 16 is provided at a position corresponding to the gear 11 on the first connector 1 for the gear 11 to extend into the insertion cavity 6 .

[0033] Specific implementation of the utility model: When the chain locker is actually used, first fix one end of the chain in the U-shaped notch of the first connector 1, fix the end of the chain by a guide rod, and then connect the second connector 2 to the other end of the chain in the same way. When the second connector 2 is connected to the chain, select a chain ring that is appropriately tensioned, not the chain ring at the very end. The purpose of this operation is to perform preliminary tensioning. When it is necessary to further adjust the tension of the chain, turn the wheel 12. The wheel 12 drives the shaft 10 to rotate, so that the gear 11 fixed at the center of the shaft 10 rotates accordingly. Since the gear 11 is meshed with the rack 8 on the plug plate 7, the rotation of the gear 11 will drive the plug plate 7 to move in the plug cavity 6 of the first connector 1, thereby realizing the extension and retraction of the second connector 2 inside the first connector 1.

[0034] For example, when the tension of the chain needs to be increased, the wheel 12 is rotated clockwise, the gear 11 is rotated clockwise, and the rack 8 is pushed to drive the plug plate 7 to move into the insertion cavity 6, so that the second connector 2 is retracted into the first connector 1, thereby shortening the overall length of the chain and increasing the tension. Conversely, when the tension of the chain needs to be reduced, the wheel 12 is rotated counterclockwise, the gear 11 is rotated counterclockwise, and the rack 8 drives the plug plate 7 to move outside the insertion cavity, so that the second connector 2 extends from the first connector 1, thereby extending the overall length of the chain and reducing the tension. After adjusting to the appropriate tension, the fixing bolt 15 is inserted into the corresponding socket 13 on the wheel 12 and screwed into the threaded hole 14 on the side of the first connector 1 to fix the position of the wheel 12 to prevent it from accidentally rotating and causing a change in tension.

[0035] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A chain locker, comprising a first connector (1) and a second connector (2), characterized in that: The first connector (1) and the second connector (2) are plug-in connected, and a tensioning mechanism is matched between the first connector (1) and the second connector (2) for driving the second connector (2) to telescope and adjust inside the first connector (1). The first connector (1) and the second connector (2) are both provided with a U-shaped notch (3) at the other end, and a guide rod (4) for plugging and fixing a chain is provided on one side of the U-shaped notch (3) through a threaded connection, and a groove (5) is provided on the other inner wall of the U-shaped notch (3) for plugging the end of the guide rod (4) into.

2. The chain locker according to claim 1, characterized in that: The first connector (1) has an insert cavity (6) at its end, and an insert plate (7) is fixedly provided at the end of the second connector (2), the insert plate (7) extending into the insert cavity (6) to be plugged into the first connector (1).

3. The chain locker according to claim 2, characterized in that: The tensioning mechanism comprises a rack (8) arranged on the plug plate (7), and also comprises a shell (9) fixedly arranged on the upper end of the first connector (1), a rotating shaft (10) is rotatably arranged inside the shell (9), a gear (11) is fixedly arranged at the center of the rotating shaft (10), the gear (11) is meshed with the rack (8), a rotating wheel (12) is fixedly arranged at one end of the rotating shaft (10) extending out of the shell (9), and a limiting mechanism is matched between the rotating wheel (12) and the outer side surface of the first connector (1).

4. The chain locker according to claim 3, characterized in that: The limiting mechanism comprises a plurality of insertion holes (13) arranged on the rotating wheel (12), and also comprises a threaded hole (14) arranged on the side of the first connector (1), and a fixing bolt (15) is inserted into the insertion hole (13), and the fixing bolt (15) is matched with the threaded hole (14).

5. The chain locker according to claim 3, characterized in that: A rectangular through hole (16) is provided at a position on the first connector (1) corresponding to the gear (11), for the gear (11) to extend into the interior of the insertion cavity (6).

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