High-stability lifting ring for crane

Abstract

The utility model provides a hoisting ring with strong stability for a crane, which belongs to the technical field of hoisting rings and comprises a connecting bolt, a lantern ring, pin shafts, a hoisting ring and a positioning ring, the lantern ring is sleeved on the outer side of the connecting bolt, the pin shafts are fixedly arranged on the left side and the right side of the outer surface of the lantern ring, and the hoisting ring is rotatably arranged on the pin shafts. A positioning ring is fixedly arranged in the center of the outer surface of the connecting bolt; by arranging the lantern ring and the pin shaft, after the connecting bolt is installed on a heavy object, the lantern ring can rotate along the connecting bolt, so that the orientation of the lifting ring is convenient to adjust, it is guaranteed that the lifting ring faces the lifting direction of a crane, the lifting ring rotates along the pin shaft, and the angle between the lifting ring and the connecting bolt is convenient to adjust; the lifting ring is ensured to face a lifting rope of the crane, and the stability during lifting is ensured.

Description

Technical Field

[0001] This utility model relates to the field of lifting ring technology, and in particular to a lifting ring for cranes with high stability. Background Technology

[0002] Crane slings are ring-shaped devices used in lifting machinery to lift heavy objects. They usually have a closed shape to ensure that the heavy object will not fall or slip during the lifting process. They mainly include hook-and-loop slings, screw slings, swivel slings, and locking slings. Sling slings are used by connecting the heavy object to be lifted through bolts on the sling, and then hooking the hook on the crane onto the sling to lift the heavy object. They are suitable for lifting occasions that require a more secure connection.

[0003] For example, in the prior art, the patent with authorization announcement number CN214167116U discloses a powerful lifting ring for a crane. This device can prevent the circular hanging ring from slipping between itself and the lifting ring during lifting, thereby improving the stability during use, extending the service life of the lifting ring, meeting the needs of users, and is reasonably designed, easy to operate, and suitable for promotion.

[0004] However, the connector of this device is fixed on the lifting ring by the lifting ring rod, which means that after the connector is threaded onto the heavy object to be lifted, the angle of the lifting ring cannot be adjusted, affecting the stability during lifting. Therefore, a crane lifting ring with strong stability is designed to solve the above problem. Utility Model Content

[0005] The purpose of this invention is to solve the problems existing in the above-mentioned background technology by proposing a crane lifting ring with high stability.

[0006] The technical problem to be solved by this utility model is to provide a crane lifting ring with strong stability, which solves the problem in the prior art that the device cannot fix the end of the motor connecting wire when winding it up, thus affecting the winding efficiency.

[0007] This utility model provides a crane lifting ring with high stability, including a connecting bolt, a collar, a pin, a lifting ring and a positioning ring. The collar is sleeved on the outside of the connecting bolt. Pins are fixed on both the left and right sides of the outer surface of the collar. The lifting ring is rotatably mounted on the pin. The positioning ring is fixed in the center of the outer surface of the connecting bolt.

[0008] Preferably, the diameter of the central through hole of the collar is not less than the diameter of the connecting bolt, and the diameter of the central through hole of the collar is less than the diameter of the connecting bolt and the positioning ring.

[0009] Preferably, the collar is located between the bolt head and the positioning ring of the connecting bolt, and the length of the collar is equal to the gap between the bolt head and the positioning ring.

[0010] Preferably, the collar includes spherical grooves and balls, and the inner surface of the collar is provided with multiple spherical grooves, in which balls are rolled.

[0011] Preferably, the diameter of the ball is equal to the diameter of the spherical groove.

[0012] Preferably, the spherical groove extends through the inner surface of the collar, and the diameter of the spherical groove where it penetrates the inner surface of the collar is smaller than the diameter of the ball.

[0013] Preferably, the positioning ring includes an embedded ring, an annular groove, and a spring. An annular groove is formed in the center of the inner surface of the positioning ring, and multiple springs are fixedly arranged in the annular groove. An embedded ring is fixedly arranged at the other end of the spring.

[0014] Preferably, the annular groove matches the embedded ring, and when the spring is in its natural extended state, the side of the embedded ring away from the spring extends out of the annular groove, and when the spring is in its maximum compressed state, the embedded ring is completely embedded in the annular groove.

[0015] Preferably, the surface of the embedded ring away from the spring is provided with a frosted layer.

[0016] Compared with the prior art, this utility model has at least the following beneficial effects:

[0017] 1. This utility model, by setting a collar and a pin, allows the collar to rotate along the connecting bolt after the connecting bolt is installed on the heavy object, making it easy to adjust the orientation of the lifting ring and ensuring that the lifting ring faces the lifting direction of the crane. Furthermore, the rotation of the lifting ring along the pin facilitates the adjustment of the angle between the lifting ring and the connecting bolt, ensuring that the lifting ring faces the direction of the crane's lifting rope, preventing breakage at the connection between the lifting ring and the connecting bolt, and ensuring stability during lifting.

[0018] 2. This utility model is provided with a spherical groove and a ball. The inner surface of the collar is provided with a spherical groove and a ball. The ball extends out of the spherical groove so that the ball contacts the connecting bolt. When the collar rotates along the connecting bolt, the ball rolls on the connecting bolt, reducing the frictional force of the collar rotating along the connecting bolt and reducing the frictional force between the connecting bolt and the collar.

[0019] 3. This utility model, by providing an embedded ring, allows the connecting bolt to be threaded onto the heavy object to be hoisted. The bolt is threaded onto the heavy object until the positioning ring contacts the heavy object. The embedded ring on the positioning ring is pressed into the annular groove by the heavy object, and the spring is in a compressed state. The spring force makes the embedded ring tightly adhere to the surface of the heavy object, increasing the friction between the positioning ring and the heavy object to be hoisted. Furthermore, the spring force also increases the friction between the threaded connecting bolt and the heavy object, ensuring the stability of the connection between the connecting bolt and the heavy object. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0021] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model.

[0022] Figure 2 This is a three-dimensional structural disassembly diagram of the present invention.

[0023] Figure 3 This is a three-dimensional structural diagram of the collar and connecting bolt of this utility model.

[0024] Figure 4 This is a schematic diagram of the cross-sectional structure of the collar of this utility model.

[0025] Figure 5 This is a three-dimensional schematic diagram of the positioning ring structure on the right side of this utility model.

[0026] Figure 6 This utility model Figure 5 Diagram of the split structure.

[0027] [Figure Labels]

[0028] 1. Connecting bolt; 2. Collar; 201. Spherical groove; 202. Ball bearing; 3. Pin; 4. Lifting eye; 5. Positioning ring; 501. Embedded ring; 502. Annular groove; 503. Spring. Detailed Implementation

[0029] Example:

[0030] like Figures 1-6As shown, an embodiment of this utility model provides a crane lifting ring with high stability, including a connecting bolt 1, a collar 2, a pin 3, a lifting ring 4, and a positioning ring 5. The collar 2 is sleeved on the outer side of the connecting bolt 1. Pins 3 are fixedly installed on both the left and right sides of the outer surface of the collar 2. The lifting ring 4 is rotatably installed on the pin 3. The positioning ring 5 is fixedly installed in the center of the outer surface of the connecting bolt 1.

[0031] This utility model, by providing a collar 2 and a pin 3, allows the collar 2 to rotate along the connecting bolt 1 after the connecting bolt 1 is installed on the heavy object. This makes it easy to adjust the orientation of the lifting ring 4, ensuring that the lifting ring 4 faces the lifting direction of the crane. Furthermore, the rotation of the lifting ring 4 along the pin 3 facilitates the adjustment of the angle between the lifting ring 4 and the connecting bolt 1, ensuring that the lifting ring 4 faces the direction of the crane's lifting rope. This prevents breakage at the connection between the lifting ring 4 and the connecting bolt 1, thus ensuring stability during lifting.

[0032] In this embodiment, the diameter of the central through hole of the collar 2 is not less than the diameter of the connecting bolt 1, and the diameter of the central through hole of the collar 2 is less than the diameter of the connecting bolt 1 and the positioning ring 5, so as to prevent the collar 2 from falling off the connecting bolt 1.

[0033] In this embodiment, the collar 2 is located between the bolt head of the connecting bolt 1 and the positioning ring 5, and the length of the collar 2 is equal to the gap between the bolt head and the positioning ring 5. The bolt head of the connecting bolt 1 and the positioning ring 5 can limit the position of the collar 2, ensuring the stability of the collar 2 on the connecting bolt 1.

[0034] In this embodiment, the collar 2 includes a spherical groove 201 and a ball 202. The inner surface of the collar 2 is provided with a plurality of spherical grooves 201, and the ball 202 is rolled in the spherical grooves 201.

[0035] In this embodiment, the diameter of the ball 202 is equal to the diameter of the spherical groove 201, ensuring the stability of the ball 202 rolling within the spherical groove 201.

[0036] In this embodiment, the spherical groove 201 penetrates the inner surface of the collar 2, and the diameter of the spherical groove 201 penetrating the inner surface of the collar 2 is smaller than the diameter of the ball 202, so as to prevent the ball 202 from extending out of the spherical groove 201 while preventing the ball 202 from falling out of the spherical groove 201.

[0037] By providing a spherical groove 201 and a ball 202, a spherical groove 201 and a ball 202 are provided on the inner surface of the collar 2. The ball 202 extends out of the spherical groove 201, so that the ball 202 contacts the connecting bolt 1. When the collar 2 rotates along the connecting bolt 1, the ball 202 rolls on the connecting bolt 1, reducing the frictional force of the collar 2 rotating along the connecting bolt 1 and reducing the frictional force between the connecting bolt 1 and the collar 2.

[0038] In this embodiment, the positioning ring 5 includes an embedded ring 501, an annular groove 502 and a spring 503. An annular groove 502 is provided in the center of the inner surface of the positioning ring 5. Multiple springs 503 are fixedly arranged in the annular groove 502, and the other end of the spring 503 is fixedly arranged with the embedded ring 501.

[0039] In this embodiment, the annular groove 502 matches the embedded ring 501. When the spring 503 is in a naturally extended state, the side surface of the embedded ring 501 away from the spring 503 extends out of the annular groove 502. When the spring 503 is in a maximum compressed state, the embedded ring 501 is completely embedded in the annular groove 502, which facilitates the friction force of the embedded ring 501 being contained in the annular groove 502.

[0040] In this embodiment, a frosted layer is provided on the side of the embedded ring 501 away from the spring 503 to increase the coefficient of friction of the outer surface of the embedded ring 501.

[0041] With the embedded ring 501, when the connecting bolt 1 is connected to the heavy object to be hoisted, the connecting bolt 1 is threaded onto the heavy object until the positioning ring 5 contacts the heavy object. The embedded ring 501 on the positioning ring 5 is pressed into the annular groove 502 by the heavy object, and the spring 503 is in a compressed state. The elastic force of the spring 503 makes the embedded ring 501 stick tightly to the surface of the heavy object, increasing the friction between the positioning ring 5 and the heavy object to be hoisted. In addition, the elastic force of the spring 503 can also increase the friction between the threaded connection of the connecting bolt to the heavy object and the heavy object, ensuring the stability of the connection between the connecting bolt 1 and the heavy object.

[0042] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these should also be considered within the scope of protection of this utility model. These will not affect the implementation effect of this utility model or the practicality of the patent.

Claims

1. A lifting ring for a crane having high stability, characterized in that: The utility model provides a connecting bolt (1), the lantern ring (2), the pin shaft (3), the lifting ring (4) and the positioning ring (5) are included, the lantern ring (2) is provided with the lantern ring (2) on the outside of connecting bolt (1) and is connected, the pin shaft (3) is fixedly arranged on the outer surface left and right sides of lantern ring (2), the lifting ring (4) is rotationally arranged on the pin shaft (3), the positioning ring (5) is fixedly arranged on the outer surface center of connecting bolt (1).

2. The stable lifting ring for a crane according to claim 1, characterized in that: The central through-hole diameter of the lantern ring (2) is not less than the diameter of the connecting bolt (1), and the central through-hole diameter of the lantern ring (2) is less than the diameter of the connecting bolt (1) and the positioning ring (5).

3. The stable lifting ring for a crane according to claim 2, characterized in that: The lantern ring (2) is between the bolt head of the connecting bolt (1) and the positioning ring (5), and the length of the lantern ring (2) is equal to the gap between the bolt head and the positioning ring (5).

4. The stable lifting ring for a crane according to claim 3, characterized in that: The lantern ring (2) includes a spherical groove (201) and a ball (202), and a plurality of spherical grooves (201) are formed on the inner surface of the lantern ring (2), and the ball (202) is arranged in the spherical groove (201).

5. The stable lifting ring for a crane according to claim 4, characterized in that: The diameter of the ball (202) is equal to the diameter of the spherical groove (201).

6. The stable lifting ring for a crane according to claim 5, characterized in that: The spherical groove (201) penetrates the inner surface of the lantern ring (2), and the diameter of the spherical groove (201) at the penetration position with the inner surface of the lantern ring (2) is less than the diameter of the ball (202).

7. The stable lifting ring for a crane according to claim 1, characterized in that: The positioning ring (5) includes an embedded ring (501), an annular groove (502), and a spring (503), the annular groove (502) is formed in the center of the inner surface of the positioning ring (5), a plurality of springs (503) are fixedly arranged in the annular groove (502), and the other end of the spring (503) is fixedly arranged with the embedded ring (501).

8. The stable lifting ring for a crane according to claim 7, characterized in that: The annular groove (502) matches the embedded ring (501), and when the spring (503) is in a natural elongation state, the side surface of the embedded ring (501) away from the spring (503) protrudes out of the annular groove (502), and when the spring (503) is in a maximum compression state, the embedded ring (501) is completely embedded in the annular groove (502).

9. The stable lifting ring for a crane according to claim 8, characterized in that: The side surface of the embedded ring (501) away from the spring (503) is provided with an abrasive layer.

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