Lanyard length adjuster

Abstract

The utility model provides a kind of chain length regulator, the utility model belongs to chain adjustment field, comprising: mounting bracket is provided with accommodating space;Limiting pin group, limiting pin group has multiple, multiple limiting pin group is from top to bottom interval and is installed on mounting bracket and is located in accommodating space;Each limiting pin group includes multiple limiting pins, multiple limiting pins interval and are installed on mounting bracket and multiple limiting pins are collinear, the interval of every adjacent two limiting pins is less than the width of single link of chain and greater than the thickness of single link of chain;At least one limiting pin in one limiting pin group is detachable movable pin;At least two single links of chain are received in accommodating space, and are located between two adjacent limiting pin groups.The purpose is to solve the problem that the length of chain cannot be adjusted in the prior art.The technical effect is achieved: the length of chain can be adjusted.

Description

Technical Field

[0001] This utility model relates to the field of hanging chain adjustment technology, and in particular to a hanging chain length adjuster. Background Technology

[0002] In modern logistics and port operations, container handling is a crucial link in ensuring the efficient flow of goods, and its operational efficiency directly affects the rhythm of the entire supply chain. However, the traditional lifting chains currently in widespread use have significant technical limitations in actual operation, becoming an important factor restricting the improvement of operational efficiency.

[0003] Traditional lifting chains are designed with fixed dimensions, meaning their length is determined after manufacturing and cannot be flexibly adjusted to meet actual operational needs. When facing lifting scenarios at varying heights, such as lifting containers from the ground to trucks of different heights, stacking containers of different numbers, or transferring goods across heights between ships and docks, operators must replace the lifting chains with chains of the appropriate length based on specific height parameters. This process involves multiple steps, including downtime, dismantling the old chain, matching and installing the new chain, and equipment debugging, which not only consumes a significant amount of valuable operating time but also increases the frequency of manual intervention.

[0004] Frequent replacement of lifting chains not only prolongs the operation cycle of a single lifting operation and reduces the lifting frequency per unit time, but may also increase safety hazards due to mismatch between the lifting chain and the working height. Utility Model Content

[0005] This utility model provides a chain length adjuster to solve the defect of the inability to adjust the chain length in the prior art, and to realize the adjustable chain length.

[0006] This utility model provides a chain length adjuster, comprising:

[0007] The mounting rack has storage space.

[0008] Limit pin assembly, there are multiple limit pin assemblies, multiple limit pin assemblies are installed on the mounting frame from top to bottom at intervals and located in the receiving space;

[0009] Each set of limit pins includes multiple limit pins, which are installed on the mounting frame at intervals and are collinear. The distance between any two adjacent limit pins is less than the width of a single link of the chain and greater than the thickness of a single link of the chain.

[0010] At least one of the limit pins in one of the limit pin groups is a detachable movable pin;

[0011] At least two single links of the chain are housed in the receiving space and located between two adjacent limit pin groups.

[0012] In addition, the chain length adjuster according to this utility model may also have the following additional technical features:

[0013] In some embodiments of this utility model, the distance between any two adjacent limit pin groups is greater than twice the length of a single link of the suspension chain.

[0014] In some embodiments of this utility model, in each limit pin group, multiple limit pins are installed on the mounting frame at equal intervals;

[0015] The combined shape of multiple limit pins is a cuboid or a cube.

[0016] In some embodiments of this utility model, the number of limit pin groups is two, and each limit pin group includes two limit pins.

[0017] In some embodiments of this utility model, the mounting bracket includes:

[0018] Mounting plates, there are two mounting plates, the two mounting plates are parallel to each other, the first end of each limit pin is connected to one of the mounting plates, and the second end of each limit pin is connected to the other mounting plate;

[0019] During hoisting operations, each movable pin is inserted into two mounting plates;

[0020] When adjusting the chain length, each movable pin can be pulled out from at least one mounting plate, and after being pulled out, the distance between the movable pin and the corresponding mounting plate is greater than the width of a single chain link.

[0021] In some embodiments of this utility model, the mounting bracket further includes:

[0022] The reinforcing plate has two ends that are connected to two mounting plates respectively, and multiple rows of limit pins are located on one side of the reinforcing plate.

[0023] In some embodiments of this invention, the distance between the two mounting plates is greater than the width of a single link of the chain.

[0024] In some embodiments of this utility model, it further includes:

[0025] Positioning pins: Each movable pin is connected to one of the mounting plates via a positioning pin to achieve positioning.

[0026] In some embodiments of this utility model, the cross-sectional shape of each limiting pin is circular, elliptical, rectangular or trapezoidal.

[0027] In some embodiments of this utility model, each movable pin includes:

[0028] During hoisting operations, the end baffle abuts against one of the mounting plates.

[0029] The pin has an end baffle at its first end and a second end that passes through one of the mounting plates and is inserted into the other mounting plate. A locating pin is inserted into the second end of the pin.

[0030] In summary, this application includes at least one of the following beneficial technical effects: The movable design of each movable pin along its own axis allows for easy and quick adjustment of the chain length by simply opening the movable pin, shortening or lengthening the chain as needed, and then closing the movable pin. Ultimately, the chain length can be adjusted according to actual requirements, eliminating the need for operators to replace chains of corresponding lengths based on specific height parameters. This reduces the time occupied in effective operation, decreases the frequency of manual intervention, shortens the operation cycle of a single hoisting session, increases the hoisting frequency per unit time, and increases operational efficiency while indirectly enhancing safety performance and reducing safety hazards. Attached Figure Description

[0031] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0032] Figure 1 A perspective view schematically illustrating the connection between a chain length adjuster and a chain according to some embodiments of the present invention is shown.

[0033] Figure 2 A schematic cross-sectional view of the connection between the chain length adjuster and the chain according to some embodiments of the present invention is shown.

[0034] Figure 3 A schematic cross-sectional view of the chain length adjuster after shortening the chain length according to some embodiments of the present invention is shown.

[0035] Figure 4 A first perspective view of a chain length adjuster according to some embodiments of the present invention is shown schematically.

[0036] Figure 5 A second perspective view of a suspension chain length adjuster according to some embodiments of the present invention is shown schematically.

[0037] Figure 6 A perspective view of a chain length adjuster according to some embodiments of the present invention without a movable pin is schematically shown.

[0038] Figure 7A perspective view of the movable pin of a chain length adjuster according to some embodiments of the present invention is shown schematically.

[0039] Figure label:

[0040] 1. Mounting bracket; 11. Mounting plate; 12. Reinforcing plate; 13. Pin hole; 2. Limit pin; 21. Fixed pin; 22. Movable pin; 221. Pin rod; 222. End baffle; 3. Lifting chain; 4. Positioning pin. Detailed Implementation

[0041] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0042] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “” used herein may also indicate the inclusion of the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated, unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0043] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0044] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may also be rotated 90 degrees or in other orientations, and the spatial relative descriptors used in the text will be interpreted accordingly.

[0045] like Figures 1 to 7 As shown, according to an embodiment of the first aspect of this utility model, a chain length adjuster is proposed, including a set of limiting pins and a mounting frame, comprising: a mounting frame 1 having a receiving space; multiple limiting pin sets, which are installed on the mounting frame 1 at intervals from top to bottom and located in the receiving space; each limiting pin set includes multiple limiting pins 2, which are installed on the mounting frame 1 at intervals and are collinear, the distance between any two adjacent limiting pins 2 is less than the width of a single link of the chain 223 and greater than the thickness of a single link of the chain 223; at least one limiting pin 2 in one of the limiting pin sets is a detachable movable pin 22; at least two single links of the chain 223 are housed in the receiving space and located between two adjacent limiting pin sets.

[0046] In the above embodiments, it should be noted that "multiple" means two, three, four, or more, that is, multiple includes two; the limiting pin 2 includes a fixed pin 21 and a movable pin 22. Except for the movable pin 22, all the limiting pins 2 are fixed pins 21. Each fixed pin 21 can be rotatably connected to the mounting frame 1 or connected by screwing, bonding, or welding; the mounting frame 1 can be a rectangular frame structure; each movable pin 22 can move a distance greater than the width of a single link along its own axis to ensure that the link can move up and down relative to the limiting pin 2.

[0047] Mounting bracket 1 may include multiple mounting plates 11 and reinforcing plates 12. The multiple mounting plates 11 are installed at equal intervals on one side of the reinforcing plate 12. At least one set of two adjacent mounting plates 11 is used to install the limiting pins 2. Each mounting plate 11 is perpendicular to the reinforcing plate 12. The connection relationship between each pair of mounting plates 11 used to install the limiting pins 2 and the corresponding multiple limiting pins 2 is that one end of the limiting pin 2 is connected to one of the mounting plates 11 and the other end is connected to the other mounting plate 11.

[0048] The hanging chain 223 is the existing hanging chain 223 structure, specifically made of multiple single-link links connected in sequence, with adjacent single-link links perpendicular to each other.

[0049] The technical effect achieved by the above embodiment is that by setting the distance between each pair of adjacent limiting pins 2 to be less than the width of a single link of the lifting chain 223 and greater than the thickness of a single link of the lifting chain 223, the single link of the lifting chain 223 can be locked between the two limiting pins 2 during the lifting operation.

[0050] By setting at least one limiting pin 2 as the movable pin 22, when an adjustable length suspension chain 223 needs to be set, a single link of the suspension chain 223 is installed between two limiting pins 2 with movable pins 22, and then a link of the other links of the suspension chain 223 is installed between two limiting pins 2 located directly above or directly below the two limiting pins 2 that hold the single link.

[0051] Each movable pin 22 is designed to move along its own axis, allowing for easy and quick adjustment of the chain length 223. Simply open the movable pin 22, shorten or lengthen the chain 223 as needed, and then close the movable pin 22. This allows the chain length 223 to be adjusted according to requirements, eliminating the need for operators to replace the chain 223 with the appropriate length based on specific height parameters. This reduces the amount of time spent on actual operations, decreases the frequency of manual intervention, shortens the cycle of a single hoisting operation, increases the frequency of hoisting operations per unit time, and increases operational efficiency while indirectly enhancing safety and reducing safety hazards.

[0052] Optional, such as Figures 1 to 5 As shown, the distance between each pair of adjacent limit pin groups is greater than twice the length of a single link of the suspension chain 223.

[0053] The advantages of the above optional embodiments are: by setting the distance between each pair of adjacent limit pin groups to be greater than twice the length of a single link of the chain 223, the convenience of adjusting the length of the chain 223 is increased.

[0054] Optional, such as Figures 1 to 5 As shown, in each limit pin group, multiple limit pins 2 are installed on the mounting bracket 1 at equal intervals;

[0055] The combined shape of multiple limit pins is a cuboid or a cube.

[0056] In the above optional embodiments, it should be noted that the number of limit pin groups can be two, three, four, five, six or more, and the specific number can be set according to the actual situation; the number of each limit pin 2 can be two, three, four, five, six or more, and the specific number can be set according to the actual needs.

[0057] The beneficial effects of the above optional embodiments are as follows: by setting the equally spaced limiting pins 2, the shape of each two adjacent and two adjacent sets of limiting pins 2 is a cuboid or cube, thereby increasing the ability to ensure that the hanging chain 223 is always in a vertical state during installation, and indirectly increasing the service life.

[0058] Optional, such as Figures 1 to 5 As shown, there are two limit pin groups, and each limit pin group includes two limit pins 2.

[0059] In the above optional embodiments, it should be noted that the number of movable pins 22 can be 1, 2, 3 or 4; the number of fixed pins 21 can be 3, 2, 1 or 0.

[0060] The advantages of the above optional embodiments are: limiting the number of limit pins 2 can increase the convenience of processing and installation of this regulator and save costs.

[0061] Optional, such as Figures 1 to 5 As shown, the mounting frame 1 includes two mounting plates 11. The first end of each limiting pin 2 is connected to one of the mounting plates 11, and the second end of each limiting pin 2 is connected to the other mounting plate 11. The two mounting plates 11 are parallel to each other. During hoisting, each movable pin 22 is inserted into the two mounting plates 11. When adjusting the length of the lifting chain 223, each movable pin 22 can be pulled out from at least one mounting plate 11, and after being pulled out, the distance between the movable pin 22 and the corresponding mounting plate 11 is greater than the width of a single chain link.

[0062] The advantages of the above optional embodiments are that the installation reliability of each limit pin 2 is ensured by setting two mounting plates 11.

[0063] Optional, such as Figures 1 to 5 As shown, the mounting bracket 1 also includes a reinforcing plate 12, with both ends of the reinforcing plate 12 connected to two mounting plates 11 respectively, and multiple rows of limiting pins 2 located on one side of the reinforcing plate 12.

[0064] In the above optional embodiments, it should be noted that the reinforcing plate 12 and the mounting plate 11 are connected by welding or screwing.

[0065] The advantages of the above optional embodiments are: the reinforcement plate 12 ensures the strength and rigidity of the regulator, thereby ensuring the reliability and stability of the regulator.

[0066] Optional, such as Figures 1 to 5 As shown, the distance between the two mounting plates 11 is greater than the width of a single link of the chain 223.

[0067] The advantages of the above optional embodiments are that the setting of the spacing between the two mounting plates 11 provides effective installation space for the hanging chain 223.

[0068] Optional, such as Figures 1 to 5 As shown, it also includes a positioning pin 4, and each movable pin 22 is connected to one of the mounting plates 11 via a positioning pin 4 for positioning.

[0069] In the above optional embodiments, it should be noted that the positioning pin 4 is a D-shaped pin.

[0070] The beneficial effect of the above optional embodiments is that the reliability of the movable pin 22 is ensured by setting the positioning pin 4.

[0071] Optional, such as Figures 1 to 5 As shown, the cross-sectional shape of each limiting pin 2 is circular, elliptical, rectangular or trapezoidal.

[0072] Optional, such as Figure 6 and Figure 7 As shown, each movable pin 22 includes an end baffle 222 and a pin 221. One end of the pin 221 is connected to the end baffle 222. During operation, the other end of the pin 221 passes through one of the mounting plates 11 and is inserted into the other mounting plate 11. The positioning pin 4 is inserted into the other end of the pin 221.

[0073] In the above optional embodiments, it should be noted that each mounting plate 11 is provided with at least one pin hole 13. Specifically, the number of pin holes 13 provided on each mounting plate 11 is the same as the number of movable pins 22, and the movable pins 22 are slidably inserted into the pin holes 13 one by one.

[0074] The advantages of the above optional embodiments are that reliable positioning of the movable pin 22 is achieved through the cooperative arrangement of the pin 221, the end baffle 222 and the positioning pin 4.

[0075] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. A chain length adjuster, characterized in that, include: Mounting bracket (1) is provided with a storage space; A set of limiting pins, wherein there are multiple sets of limiting pins, and the multiple sets of limiting pins are installed on the mounting frame (1) at intervals from top to bottom and located in the accommodating space; Each of the limiting pin groups includes multiple limiting pins (2), the multiple limiting pins (2) are installed on the mounting frame (1) at intervals and the multiple limiting pins (2) are collinear, and the distance between each pair of adjacent limiting pins (2) is less than the width of a single link of the hanging chain (223) and greater than the thickness of a single link of the hanging chain (223); At least one of the limiting pins in the limiting pin group is a detachable movable pin (22); At least two single-link links of the chain (223) are housed in the receiving space and located between two adjacent sets of the limiting pins.

2. The chain length adjuster according to claim 1, characterized in that, The distance between each pair of adjacent limit pins is greater than twice the length of a single link of the chain (223).

3. The chain length adjuster according to claim 1, characterized in that, In each of the limiting pin groups, a plurality of the limiting pins (2) are installed at equal intervals on the mounting bracket (1); The combined shape of the multiple limiting pins is a cuboid or a cube.

4. The chain length adjuster according to claim 3, characterized in that, The number of the limit pin groups is two, and each limit pin group includes two limit pins (2).

5. The chain length adjuster according to any one of claims 1 to 4, characterized in that, The mounting bracket (1) includes: Mounting plate (11), there are two mounting plates (11), the two mounting plates (11) are parallel to each other, the first end of each limiting pin (2) is connected to one of the mounting plates (11), and the second end of each limiting pin (2) is connected to the other mounting plate (11); During hoisting operations, each of the movable pins (22) is inserted into the two mounting plates (11); When adjusting the length of the chain (223), each of the movable pins (22) can be pulled out from at least one of the mounting plates (11) and the distance between the movable pins (22) and the corresponding mounting plates (11) after being pulled out is greater than the width of a single chain link.

6. The chain length adjuster according to claim 5, characterized in that, The mounting bracket (1) also includes: The reinforcing plate (12) has two ends connected to the two mounting plates (11) respectively, and the multiple rows of limiting pins (2) are all located on one side of the reinforcing plate (12).

7. The chain length adjuster according to claim 5, characterized in that, The distance between the two mounting plates (11) is greater than the width of a single link of the chain (223).

8. The chain length adjuster according to claim 6, characterized in that, Also includes: Positioning pin (4), each of the movable pins (22) is connected to one of the mounting plates (11) via a positioning pin (4) for positioning.

9. The chain length adjuster according to claim 1, characterized in that, Each of the aforementioned limiting pins (2) has a cross-sectional shape that is circular, elliptical, rectangular, or trapezoidal.

10. The chain length adjuster according to claim 8, characterized in that, Each of the aforementioned active pins (22) includes: During hoisting, the end baffle (222) abuts against one of the mounting plates (11); A pin (221) is provided, with its first end connected to the end baffle (222). The second end of the pin (221) passes through one of the mounting plates (11) and is inserted into the other mounting plate (11). A positioning pin (4) is inserted into the second end of the pin (221).

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