Shackle with anti-loosening function

Abstract

The utility model relates to the technical field of shackles, and provides a shackle with an anti-loosening function, which comprises a shackle main body, the pin shaft is detachably arranged on the shackle main body; the ratchet wheel is arranged on the pin shaft; the tongue bolt is arranged on the shackle body in a sliding mode, and after the tongue bolt descends, the tongue bolt is used for clamping the ratchet wheel. By means of the technical scheme, the problems that in the prior art, a pin shaft and a shackle body are not firmly connected, and looseness is prone to occurring after long-time use are solved.

Description

Technical Field

[0001] This utility model relates to the field of shackle technology, specifically to a shackle with anti-loosening function. Background Technology

[0002] In practical use, the pin of a shackle may loosen due to vibration, impact, or other factors. Once the pin loosens or even falls off, the suspended object will fall, causing a serious safety accident. Currently, common shackle anti-loosening methods on the market have some shortcomings. For example, some shackles use a simple nut fastening method, which is prone to loosening under long-term vibration, failing to effectively prevent the pin from coming loose. Other shackles use cotter pins or other anti-loosening structures, but cotter pins may deform or break during use, affecting their anti-loosening effect.

[0003] With the increasing demands for safety and reliability in industrial production, there is a need for a more reliable and effective anti-loosening structure for shackles. Utility Model Content

[0004] This utility model proposes a shackle with anti-loosening function, which solves the problem in related technologies that the connection between the pin and the shackle body is not firm and is prone to loosening after long-term use.

[0005] The technical solution of this utility model is as follows:

[0006] A shackle with anti-loosening function includes:

[0007] Shackle body;

[0008] The pin is detachably mounted on the shackle body;

[0009] A ratchet is mounted on the pin.

[0010] The latch is slidably mounted on the shackle body. After the latch descends, it is used to lock the ratchet.

[0011] Optionally, the shackle body has a mounting groove, the latch is disposed in the mounting groove, and further includes:

[0012] A spring, with one end disposed on the inner wall of the mounting groove and the other end disposed on the tongue bolt, is used to provide the force for the tongue bolt to engage the ratchet.

[0013] Optional, also includes:

[0014] The device includes several anti-sway posts, each of which is disposed within a mounting groove and is located on both sides of the tongue bolt. The side walls of the tongue bolt slide against the anti-sway posts, and the anti-sway posts are used to limit the movement direction of the tongue bolt.

[0015] Optionally, the tongue plug has a locking end, through which the tongue plug engages with the ratchet.

[0016] Optionally, the tongue plug has a groove and further includes:

[0017] A fixed shaft is disposed in the mounting groove, and the tongue bolt is slidably connected to the fixed shaft through the sliding groove.

[0018] Optional, also includes:

[0019] A lever is provided on the tongue bolt, and the lever is used to push the tongue bolt away from the ratchet.

[0020] Optionally, the pin is threadedly connected to the shackle body, and after the ratchet engages with the tongue bolt, the ratchet is used to limit the pin.

[0021] Optionally, the mounting groove has a screw hole and further includes:

[0022] A cover plate is detachably mounted on a mounting groove, and the cover plate has mounting holes;

[0023] The fastening bolt is detachably disposed in the screw hole and the mounting hole, and the fastening bolt is used to fix the cover plate to the mounting groove.

[0024] Optionally, the cover plate has a through groove, through which the lever is slidably disposed.

[0025] Optional, also includes:

[0026] Anti-snagging stiffeners are installed on the shackle body and are located above the mounting groove.

[0027] The working principle and beneficial effects of this utility model are as follows:

[0028] This invention comprises a shackle body, a pin, a ratchet, and a latch. The shackle body serves as the supporting structure for the entire shackle, bearing the tensile force of the suspended object. The pin is detachable, facilitating the installation and removal of the shackle. The ratchet, mounted on the pin, provides a crucial anti-loosening mechanism. The latch slides on the shackle body, and its position adjustment engages the ratchet. When installing the pin, it is first inserted into the shackle body, then rotated to tighten the threads between the pin and the shackle body. When the ratchet contacts the latch, the latch slides up and down under the guidance of the ratchet, but remains constantly pressed against the ratchet. Once the pin is in place, the latch locks the ratchet, preventing loosening and potential detachment during use. Compared to traditional nut tightening and cotter pin anti-loosening methods, the combination of the ratchet and latch provides a new anti-loosening mechanism, reducing the risk of pin loosening due to vibration and impact, and improving the safety and reliability of the shackle. Attached Figure Description

[0029] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0030] Figure 1 This is a schematic diagram of the overall structure of the shackle in this embodiment.

[0031] Figure 2 for Figure 1 Enlarged view of a portion of point A in the middle;

[0032] Figure 3 This is a side view of the shackle in this embodiment;

[0033] Figure 4 This is a schematic diagram of the structure of the shackle with a cover plate added in this embodiment.

[0034] Figure 5 This is a schematic diagram of the cover plate structure in this embodiment;

[0035] Figure 6 This is a schematic diagram of the overall structure of the shackle in Embodiment 2;

[0036] Figure 7 for Figure 6 Enlarged view of a section at point B in the middle;

[0037] Figure 8 This is a schematic diagram of the limiting pin structure of this utility model;

[0038] Figure 9 for Figure 8 Enlarged view of a section at point C.

[0039] In the diagram: 1. Shackle body; 101. Mounting groove; 2. Pin; 3. Ratchet; 4. Tongue bolt; 401. Snap-fit ​​end; 402. Slide groove; 5. Spring; 6. Anti-sway post; 7. Fixed shaft; 8. Lever; 9. Screw hole; 10. Cover plate; 1001. Through groove; 1002. Mounting hole; 11. Anti-snagging rib plate; 12. Fastening bolt; 13. Stop bar; 14. Limit pin; 15. Elastic element. Detailed Implementation

[0040] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0041] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0042] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0043] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0044] Example 1

[0045] Reference Figures 1-5 As an embodiment of this utility model, a shackle with anti-loosening function is proposed, including a shackle body 1; a pin 2 detachably disposed on the shackle body 1; a ratchet 3 disposed on the pin 2; and a latch 4 slidably disposed on the shackle body 1. After the latch 4 descends, the latch 4 is used to lock the ratchet 3.

[0046] In the above scheme, the shackle body 1 is a common U-shaped or bow-shaped structure; the pin 2 can be installed on the shackle body 1; a ratchet 3 is installed at one end of the pin 2; and a latch 4 is slidably set on the shackle body 1 so that the latch 4 can lock the ratchet 3 after it descends.

[0047] The shackle consists of a shackle body 1, a pin 2, a ratchet 3, and a latch 4. The shackle body 1 serves as the supporting structure for the entire shackle, bearing the tensile force of the suspended object. The pin 2 is detachable, facilitating the installation and removal of the shackle. The latch 4 can slide on the shackle body 1, and its position adjustment engages the ratchet 3.

[0048] When installing pin 2, first insert pin 2 into shackle body 1, then rotate pin 2 to tighten the threads between pin 2 and shackle body 1. When ratchet 3 contacts latch 4, latch 4 will slide up and down under the guidance of ratchet 3, but latch 4 will always remain in close contact with ratchet 3. After pin 2 is installed in place, latch 4 locks ratchet 3, preventing pin 2 from loosening and falling off during use. Compared with traditional nut tightening and cotter pin anti-loosening methods, the cooperation of ratchet 3 and latch 4 provides a new anti-loosening mechanism, reducing the risk of pin 2 loosening due to vibration and impact, and improving the safety and reliability of the shackle.

[0049] Furthermore, the shackle body 1 has a mounting groove 101, the latch 4 is disposed in the mounting groove 101, and also includes a spring 5, one end of the spring 5 is disposed on the inner wall of the mounting groove 101, and the other end is disposed on the latch 4. The spring 5 is used to provide the force for the latch 4 to lock the ratchet 3.

[0050] In the above scheme, a mounting groove 101 is formed on the shackle body 1, the latch bolt 4 is placed in the mounting groove 101, and a spring 5 is installed between the inner wall of the mounting groove 101 and the latch bolt 4. One end of the spring 5 is connected to the inner wall of the mounting groove 101, and the other end is connected to the latch bolt 4. The mounting groove 101 provides space for the installation and movement of the latch bolt 4. The spring 5 can provide a continuous force to the latch bolt 4, keeping it locked to the ratchet 3 and preventing the latch bolt 4 from accidentally disengaging from the ratchet 3 due to vibration or other factors.

[0051] After the latch 4 slides down and engages the ratchet 3, the spring 5 remains compressed, continuously applying pressure to the latch 4 towards the ratchet 3, ensuring the latch 4 is firmly engaged. Even under some vibration, the elastic force of the spring 5 ensures that the latch 4 will not easily disengage from the ratchet 3, thus guaranteeing the anti-loosening effect. The spring 5 makes the latch 4's locking state more stable, automatically compensating for any possible gaps, enhancing the stability and reliability of the anti-loosening structure, and improving the overall anti-loosening performance of the shackle.

[0052] Furthermore, it also includes anti-sway posts 6, of which there are several, and each of the several anti-sway posts 6 is disposed in the mounting groove 101, and the several anti-sway posts 6 are respectively disposed on both sides of the tongue bolt 4, and the side walls of the tongue bolt 4 slide against the anti-sway posts 6, and the anti-sway posts 6 are used to limit the movement direction of the tongue bolt 4.

[0053] In the above scheme, several anti-sway posts 6 are set in the mounting groove 101, and these anti-sway posts 6 are respectively set on both sides of the tongue bolt 4, so that the side walls of the tongue bolt 4 slide against the anti-sway posts 6.

[0054] The anti-slip pin 6 limits the movement direction of the latch 4, preventing it from deviating during movement and ensuring that it can only slide along the preset direction. This avoids positional deviation when the latch 4 gets stuck in the ratchet 3, which would affect the anti-loosening effect. When the latch 4 slides under the push of the spring 5 or by manual operation, its two sides will slide into contact with the anti-slip pin 6. The anti-slip pin 6 restricts the latch 4 to move only in the vertical direction, ensuring that the latch 4 accurately engages or disengages from the ratchet 3.

[0055] This improves the accuracy and stability of the movement of the tongue bolt 4, ensures the reliability of the anti-loosening operation, avoids anti-loosening failure caused by the positional deviation of the tongue bolt 4, and further enhances the anti-loosening effect and safety of the shackle.

[0056] Furthermore, the tongue bolt 4 has a locking end 401, which engages with the ratchet 3.

[0057] In the above scheme, the locking end 401 can be a protruding structure or a specially shaped end on the tongue bolt 4, which can cooperate with the tooth groove or other structure of the ratchet 3 to achieve a more reliable locking. It should be noted that the connection between the ratchet 3 and the locking end 401 can be understood as the connection between the ratchet 3 and the pawl.

[0058] When the latch 4 descends, the locking end 401 inserts into the corresponding position of the ratchet 3, forming a mechanical lock to prevent the ratchet 3 from rotating, thereby preventing the pin 2 from loosening. This enhances the locking strength between the latch 4 and the ratchet 3, making the anti-loosening effect more stable, improving the overall anti-loosening reliability of the shackle, and reducing the risk of loosening caused by weak locking.

[0059] Furthermore, the tongue bolt 4 has a sliding groove 402 and also includes a fixed shaft 7, which is disposed in the mounting groove 101. The tongue bolt 4 is slidably connected to the fixed shaft 7 through the sliding groove 402.

[0060] In the above scheme, the cooperation between the slide groove 402 and the fixed shaft 7 provides a more stable sliding connection for the tongue bolt 4, ensuring that the tongue bolt 4 slides stably along the axial direction of the fixed shaft 7, and improving the smoothness and stability of the tongue bolt 4's movement.

[0061] Under the push of the spring 5, the tongue bolt 4 slides along the fixed shaft 7 via its groove 402, allowing it to move accurately up and down to engage and release the ratchet 3. This ensures the stability and precision of the tongue bolt 4's movement, preventing it from jamming or shifting during sliding, thus improving operational convenience and the reliability of the anti-loosening structure.

[0062] Furthermore, it also includes a lever 8, which is mounted on the tongue bolt 4 and is used to push the tongue bolt 4 away from the ratchet 3.

[0063] In the above scheme, the lever 8 is an operating component, which allows the operator to manually operate the tongue bolt 4 to move it away from the ratchet 3, thereby unlocking the shackle.

[0064] When it is necessary to disassemble the shackle, by operating the lever 8, the latch 4 is pushed away from the ratchet 3, releasing the latch 4 from the ratchet 3, thereby allowing the pin 2 to rotate and disassemble. This provides a convenient operating method, making the disassembly of the shackle more convenient, without affecting the normal use of the anti-loosening structure, thus improving the operability and ease of use of the shackle.

[0065] Furthermore, the pin 2 is threadedly connected to the shackle body 1, and after the ratchet 3 is engaged with the tongue bolt 4, the ratchet 3 is used to limit the pin 2.

[0066] In the above scheme, the pin 2 is connected to the shackle body 1 by a thread, and after the ratchet 3 engages with the latch 4, the ratchet 3 limits the pin 2. The threaded connection of the pin 2 facilitates installation and disassembly. At the same time, after the ratchet 3 engages with the latch 4, the ratchet 3 will interact with the pin 2, restricting the rotation of the pin 2 and preventing it from loosening due to vibration or other reasons.

[0067] First, screw the pin 2 into the shackle body 1 via the thread. After the connection is complete, the latch 4 locks the ratchet 3. The ratchet 3, through its own structural characteristics, restricts the loosening of the pin 2 in the threaded direction, ensuring the stability of the shackle. By utilizing the convenience of the threaded connection and the anti-loosening function of the ratchet 3, the effect of both easy installation and effective prevention of loosening is achieved, thus comprehensively improving the performance of the shackle.

[0068] Furthermore, the mounting groove 101 has a screw hole 9 and also includes a cover plate 10, which is detachably mounted on the mounting groove 101. The cover plate 10 has a mounting hole 1002. A fastening bolt 12 is detachably mounted in the screw hole 9 and the mounting hole 1002. The fastening bolt 12 is used to fix the cover plate 10 to the mounting groove 101.

[0069] In the above scheme, the cover plate 10 can enclose the components (such as the tongue bolt 4, spring 5, etc.) in the mounting groove 101, thus providing protection. The cooperation between the fastening bolt 12 and the screw hole 9 ensures the secure installation of the cover plate 10 and prevents the cover plate 10 from falling off during use.

[0070] Covering the mounting groove 10 with the cover plate 10 and securing it with the fastening bolts 12 ensures the stability and safety of the internal components. It also prevents dust, impurities, and other contaminants from entering the mounting groove 101 and affecting the normal operation of the internal components. This protects the internal anti-loosening structure components, extends the service life of the components, and improves the overall reliability and stability of the shackle.

[0071] Furthermore, the cover plate 10 has a through groove 1001, through which the lever 8 is slidably disposed.

[0072] In the above solution, the through groove 1001 provides operating space for the lever 8 while ensuring the integrity and protective function of the cover plate 10. This allows the lever 8 to slide within the through groove 1001, enabling operation of the latch 4. As the lever 8 slides within the through groove 1001, the operator can manipulate the latch 4 without affecting its normal operation, while the cover plate 10 also protects the internal components. This achieves a balance between protecting the internal components and facilitating operation, protecting the anti-loosening structure while allowing for easy unlocking of the latch, thus improving usability and the safety of the anti-loosening structure.

[0073] Furthermore, it also includes an anti-snagging rib plate 11, which is disposed on the shackle body 1 and is located above the mounting groove 101.

[0074] In the above solution, the anti-snagging rib plate 11 prevents foreign objects from getting caught in the mounting slot 101, avoiding interference or damage to the internal anti-loosening structure. During use, the anti-snagging rib plate 11 blocks potential foreign objects from approaching the mounting slot 101, ensuring the normal operation of the components within the mounting slot 101. This improves the safety and reliability of the shackle, reduces interference from external factors on the anti-loosening structure, and extends the service life of the anti-loosening structure.

[0075] Reference Figure 8-9 The cover plate 10 also has a rectangular groove that communicates with the through groove and is arranged perpendicularly to it. A limiting pin 14 is provided in the rectangular groove, with one end of the limiting pin 14 extending into the through groove. The limiting pin 14 has an inclined surface and a limiting surface. When the lever 8 moves upward, the lever 8 can push open the limiting pin through the inclined surface, then enter the other side of the limiting pin 14 and abut against the limiting surface, thereby limiting and fixing the lever. An elastic element 15, which is a spring, is also provided in the rectangular groove. The spring can provide support for the limiting pin 14 to extend into the channel. With the above settings, the lever 8 can be locked when it moves to the highest or lowest point of the through groove, facilitating subsequent operations.

[0076] Example 2, refer to Figure 6-7The only difference between this embodiment and the first embodiment is that the anti-sway post 6 is replaced with a stop bar 13. There are two stop bars 13 symmetrically arranged. The two stop bars 13 can limit the tongue bolt 4 and prevent the tongue bolt 4 from sliding when moving up and down.

[0077] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A shackle with anti-loosening function, characterized in that, include: Shackle body (1); The pin (2) is detachably mounted on the main body of the pin (2); A ratchet (3) is mounted on the pin (2); The tongue plug (4) is slidably set on the shackle body (1). After the tongue plug (4) descends, the tongue plug (4) is used to lock the ratchet (3).

2. A shackle with anti-loosening function according to claim 1, characterized in that, The shackle body (1) has a mounting groove (101), the tongue bolt (4) is disposed in the mounting groove (101), and further includes: A spring (5) is provided at one end on the inner wall of the mounting groove (101) and at the other end on the tongue bolt (4). The spring (5) is used to provide the force for the tongue bolt (4) to clamp the ratchet (3).

3. A shackle with anti-loosening function according to claim 2, characterized in that, Also includes: There are several anti-sway posts (6), and all of the several anti-sway posts (6) are disposed in the mounting groove (101), and the several anti-sway posts (6) are respectively disposed on both sides of the tongue plug (4). The two side walls of the tongue plug (4) slide against the anti-sway posts (6), and the anti-sway posts (6) are used to limit the movement direction of the tongue plug (4).

4. A shackle with anti-loosening function according to claim 1, characterized in that, The tongue plug (4) has a snap-fit ​​end (401), and the tongue plug (4) snaps into the ratchet (3) through the snap-fit ​​end (401).

5. A shackle with anti-loosening function according to claim 2, characterized in that, The tongue plug (4) has a groove (402) and further includes: A fixed shaft (7) is set in the mounting groove (101), and the tongue bolt (4) is slidably connected to the fixed shaft (7) through the sliding groove (402).

6. A shackle with anti-loosening function according to claim 2, characterized in that, Also includes: A lever (8) is provided on the tongue plug (4), and the lever (8) is used to push the tongue plug (4) away from the ratchet (3).

7. A shackle with anti-loosening function according to claim 1, characterized in that, The pin (2) is threadedly connected to the shackle body (1). After the ratchet (3) is engaged with the tongue bolt (4), the ratchet (3) is used to limit the pin (2).

8. A shackle with anti-loosening function according to claim 6, characterized in that, The mounting groove (101) has a screw hole (9) and also includes: A cover plate (10) is detachably mounted on a mounting groove (101), the cover plate (10) having mounting holes (1002). The fastening bolt (12) is detachably disposed in the screw hole (9) and the mounting hole (1002), and the fastening bolt (12) is used to fix the cover plate (10) onto the mounting groove (101).

9. A shackle with anti-loosening function according to claim 8, characterized in that, The cover plate (10) has a through groove (1001), and the lever (8) passes through and is slidably disposed in the through groove (1001).

10. A shackle with anti-loosening function according to claim 2, characterized in that, Also includes: Anti-snagging stiffener (11) is provided on the shackle body (1), and the anti-snagging stiffener (11) is located above the mounting groove (101).

Images