Quick-release type locking device and working method

Abstract

The invention relates to the technical field of locking devices for hoisting, and discloses a quick-release locking device and a working method. A hole is formed in the center of a lockset, a column head is arranged at the top of a hoisting column and used for penetrating through the hole of the lockset, and the portion, close to the top end, of the column head is hollow and communicated with a plurality of openings in the circumferential side of the column head; the top end of the central conical column is connected with an upper tenon piece through a first spring, the side face of the central conical column is connected with a lower tenon piece through a second spring, the lower tenon piece is in sliding fit with the opening, a vertical hole is formed in the central conical column and extends to the lower end face of the hanging column, and a pull rope is connected with the upper tenon piece through the vertical hole. The upper tenon piece is pulled by the pull rope, so that the lower tenon piece is pulled into the column head by the upper tenon piece; during unhooking, the height needed by unhooking is reduced through the arranged pull rope, high-altitude unhooking is not needed by prolonging the length of the pull rope, the safety risk of unhooking is reduced, and the unhooking device is suitable for occasions where materials are transferred and repeatedly used and saves time and labor.

Description

Technical Field

[0001] The invention relates to the technical field of locking devices for lifting, in particular to a quick-release locking device and a working method. Background Art

[0002] In industrial production, products often need to be lifted and transported, which requires the use of lifting devices. Current lifting devices include hooks, slings, U-shaped shackles, etc. Although these lifting methods can lift products safely, they cannot be quickly unhooked when unhooking.

[0003] Application No. CN201821225251.X discloses a sling with a protective lock, which uses a hook to hoist items, and is provided with a closed ring and a lock. The closed ring can be rotated along the rotating shaft and inserted into the lock. The spring piece pushes the lock upward through its own elasticity, and the sawtooth and the lock are locked with each other, so that the ring is closed to prevent the item from shaking and falling off during the lifting process. At the same time, a manual knob is provided on the surface of the lock, and the manual knob is connected to a rotatable switch. The switch is rotated, and the switch squeezes one end of the lock. The lock rotates along the lock shaft, so that the lock is separated from the sawtooth, and the closed ring can be rotated out, thereby opening the sling and unloading the goods. Although the above scheme can realize the safe lifting of items, in some cases of high-altitude lifting, it is inconvenient to remove the hook at high altitude in the above scheme, and it is necessary to manually cooperate with the crane and other forms to unhook the sling, and the above scheme cannot be unhooked quickly, and there are certain safety hazards. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a quick-release locking device and a working method. When the locking device is unhooking, the height required for unhooking is reduced by setting a pull rope. By extending the length of the pull rope, there is no need to unhook at high altitude, thereby reducing the safety risk of unhooking. The device is suitable for material transport, high-altitude unhooking, and repeated use, saving time and effort.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0006] In the first aspect, a quick-release locking device includes a lock and a hanging column. The lock has a central opening, a first plate-type hanging ear is provided at the top, a second plate-type hanging ear is provided at the bottom of the hanging column, and a column head is provided at the top. The column head is used to pass through the opening of the lock, and the column head is hollow near the top and connected to a plurality of openings on the periphery of the column head. A central conical column is provided in the hollow part of the column head, the top of the central conical column is connected to an upper tenon through a first spring, and the side of the central conical column is connected to a lower tenon through a second spring. The lower tenon slides in cooperation with the opening, a vertical opening is provided on the central conical column and extends to the lower end face of the hanging column, a pull rope is connected to the upper tenon through the vertical opening, the top face of the lower tenon is inclinedly grooved, and the bottom end of the upper tenon slides in cooperation with the groove, and the pull rope pulls the upper tenon so that the upper tenon pulls the lower tenon into the inside of the column head.

[0007] As a further implementation, the bottom edge of the central opening is a slope.

[0008] As a further implementation method, the lower tenon is arranged to be inclined away from the top surface of one end of the central cone column to cooperate with the inclined surface.

[0009] As a further implementation, the upper tenon is a quadrangular pyramid structure, and the bottom of the upper tenon is hollow, and the side wall of the upper tenon is used for sliding cooperation with the slot of the lower tenon.

[0010] As a further implementation method, the lower tenon is a rectangular structure, the groove of the lower tenon is arranged on the top surface of the lower tenon close to one end of the central cone column, the slope of the groove is consistent with the slope of the side wall of the upper tenon, and the bottom surface of the lower tenon is a planar structure.

[0011] As a further implementation, one end of the first spring is connected to the central cone column, and the other end is connected to the bottom center of the upper tenon.

[0012] As a further implementation, one end of the second spring is connected to the side surface of the central cone column, and the other end is connected to the end of the lower tenon.

[0013] As a further implementation method, the bottom end of the pull rope extends to below the suspension column through the vertical opening, the bottom end of the pull rope is connected to the suspension rod, and the top end passes through the first spring to connect to the upper tenon.

[0014] As a further implementation, the outer diameter of the column head is adapted to the inner diameter of the central opening of the lock.

[0015] In a second aspect, a working method of a quick-release locking device, using any of the quick-release locking devices described above, comprises the following steps:

[0016] Before lifting, buckle the lock on the column head and press the lock. The lower end of the central opening of the lock presses the lower tenon inward until the lower tenon is completely inserted into the column head. The column head enters the central opening of the lock. After the lock is completely passed through the lower tenon, the lower tenon extends out to lock the lock. Then, the lifting starts through the second plate-type lifting ear.

[0017] After the lifting is completed, the pull rope is pulled, the upper tenon piece moves downward, causing the lower tenon piece to move inward, until the lower tenon piece is completely inserted into the column head, and the hanging column is released from the lock.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. When unhooking, the locking device of the present invention reduces the height required for unhooking by means of the set pull rope. By extending the length of the pull rope, there is no need to unhook at high altitude, thereby reducing the safety risk of unhooking. The locking device of the present invention is suitable for material transport, high-altitude unhooking, and repeated use, saving time and effort.

[0020] 2. The central opening of the lock provided in the present invention is perfectly matched with the column head, so that the lock device can quickly buckle the lifting ring on the hanging column before hoisting, and it can be intuitively seen whether it is installed in place. After the hoisting of the object is completed, it can be automatically unhooked by pulling the suspension rod, and the unhooking process is simple and easy to operate. The height required for unhooking is low, and there is no need to remove the hook at high altitude, which improves the construction efficiency.

[0021] 3. After the lifting is completed, when the lifting rod is pulled, the upper tenon is moved to the center of the column head under the action of force until the lower tenon is completely moved straight into the column head, and the column head can automatically escape from the lock. The invention is simple, convenient and easy to operate, has good safety performance, and the lock device is novel in design and can be reused. It has the characteristics of a wide range of applications, easy operation and cost saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0023] Figure 1 This is a schematic diagram of the structure of a quick-release locking device before installation in an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of a quick-release locking device after installation in an embodiment of the present invention;

[0025] Figure 3 is a partial schematic diagram of the quick-release locking device in the embodiment of the present invention before installation is completed;

[0026] Figure 4 It is a partial schematic diagram of the quick-release locking device after installation in the embodiment of the present invention.

[0027] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.

[0028] Among them: 1. first plate type lifting ear; 2. hanging column; 3. second plate type lifting ear; 4. column head; 5. hanging rod; 6. upper tenon; 7. lower tenon; 8. first spring; 9. second spring; 10. lock; 11. steel wire rope; 12. center cone column. DETAILED DESCRIPTION

[0029] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0030] Embodiment 1

[0031] In a typical embodiment of the present invention, reference is made to Figure 1-Figure 4 As shown, a quick-release locking device includes a lock 10 and a hanging column 2. The lock 10 has a central opening, and a first plate-type hanging ear 1 is provided at the top. The hanging column 2 has a second plate-type hanging ear 3 at the bottom, and a column head 4 is provided at the top. The column head 4 is used to pass through the opening of the lock 10. The column head is hollow and connected to a plurality of openings on the side of the column head. A central cone column 12 is provided in the hollow part near the top of the column head. The top of the central cone column 12 is connected to an upper tenon 6 through a first spring 8, and the side of the central cone column 12 is connected to a lower tenon 7 through a second spring 9. The lower tenon 7 slides with the opening. The central cone column 12 has a vertical opening and extends to the lower end face of the hanging column 2. The pull rope is connected to the upper tenon 6 through the vertical opening. The top face of the lower tenon 7 is inclinedly grooved, and the bottom end of the upper tenon 6 slides with the groove. The pull rope pulls the upper tenon 6 to enable the upper tenon 6 to pull the lower tenon 7 into the inside of the column head.

[0032] The pull rope of this embodiment can extend to the bottom of the hanging column 2. By increasing the length of the pull rope, the height required for removing the hook is reduced, and there is no need to remove the hook from high altitude, thereby reducing the risk during the lifting process.

[0033] like Figure 1 As shown, the lock 10 is a plate-like structure with a central opening. A first plate-type lifting lug 1 is symmetrically provided around the opening for connecting the upper portion with a lifting wire rope.

[0034] The main body of the hanging column 2 is also a plate-like structure, and a second plate-like lifting lug 3 is symmetrically arranged on the bottom plane thereof, and the second plate-like lifting lug 3 is used to lift objects. A column head 4 is arranged on the top of the main body of the hanging column 2, and the column head 4 is a cylindrical structure, and the top of the column head 4 is hemispherical. The outer diameter of the column head 4 is adapted to the inner diameter of the central opening of the lock 10, so that the top of the column head 4 can pass through the central opening of the lock 10 and extend to the top of the lock.

[0035] like Figure 3 and Figure 4 As shown, the column head 4 is hollow near the top to form a receiving space for the upper tenon 6 and the lower tenon 7, and the receiving space is located below the hemispherical structure at the top of the column head 4. A central cone column 12 is provided on the bottom plane of the hollow part of the column head 4, and the central cone column 12 is located inside the column head 4, and has a conical shape with a thin top and a thick bottom.

[0036] In this embodiment, four openings are evenly arranged on the side of the column head 4 in the horizontal direction, and the four openings are arranged vertically, and the openings are connected to the hollow space near the top of the column head 4. A lower tenon 7 is arranged at each opening, and the lower tenon 7 is slidably matched with the opening, and the lower tenon 7 can extend out of the column head 4 through the opening, or retract into the hollow space of the column head 4.

[0037] The column head 4 has a central vertical opening, the bottom end of which extends through the column head 4 to the bottom end surface of the suspension column 2, and the top end passes through the top end of the central cone column 12. The top end surface of the central cone column 12 is connected to the bottom surface of the upper tenon 6 through the first spring 8, and the four side surfaces of the central cone column 12 are connected to the end of the lower tenon 7 through the second spring 9, and the lower tenon 7 is slidably matched with the opening.

[0038] like Figure 3 and Figure 4 As shown, the upper tenon 6 is a quadrangular pyramid structure, and the bottom of the upper tenon 6 is hollow, and it has four inclined side walls, and the side walls are plate-like structures.

[0039] The lower tenon 7 is a rectangular parallelepiped structure, and the opening shape of the column head 4 is rectangular. A slot is provided on the top surface of the lower tenon 7 near the central cone column, and the slot is inclined. The inclination of the slot is consistent with the inclination of the side wall of the upper tenon, and the upper tenon 6 is slidably matched with the lower tenon through the side wall and the slot. When the upper tenon 6 descends, the lower tenon 7 is pushed by the side wall of the upper tenon 6, and the lower tenon 7 is pulled back into the column head 4. At this time, the bottom end of the side wall of the upper tenon 6 is inserted into the bottom of the slot.

[0040] A pull rope is arranged in the vertical opening of the column head 4, and the bottom end of the pull rope extends through the vertical opening to below the hanging column to reduce the height of the hook removal, and the bottom end of the pull rope can be connected to the hanging rod 5, and the hook removal is achieved through the hanging rod, and the top end of the pull rope passes through the first spring to connect to the upper tenon. The pull rope can be a steel wire rope 11.

[0041] The groove of the lower tenon 7 of the present embodiment is arranged on the top surface of the lower tenon 7 near one end of the central cone column 12. The bottom surface of the lower tenon 7 is a planar structure, and the top surface is inclined away from one end of the central cone column 12. The bottom edge of the central opening of the lock 10 is an inclined surface, and the inclined part of the outer end of the top surface of the lower tenon 7 cooperates with the inclined surface, so that when the lock presses down the hanging column, the inclined surface of the central opening of the lock 10 presses down the outer end of the lower tenon, so that the outer end of the lower tenon 7 shrinks into the interior of the column head 4, and the column head 4 can pass through the lock 10 upward. When the lower tenon is higher than the top surface of the lock 10, under the action of the second spring 9, the lower tenon 7 extends out of the column head 4 and abuts against the top surface of the lock 10 to achieve locking.

[0042] One end of the first spring 8 of this embodiment is connected to the central cone column 12, and the other end is connected to the bottom center of the upper tenon 6. One end of the second spring 9 is connected to the side of the central cone column 12, and the other end is connected to the end of the lower tenon 7.

[0043] like Figure 1 As shown, the lock is lowered, and the lock presses the lower tenon 7, and the lower tenon 7 is retracted into the column head 4, and then the lower tenon 7 is extended to the top surface of the lock. Figure 2 shown.

[0044] When it is necessary to remove the hook, the suspension rod 5 is pulled downward, the first spring 8 is compressed, the upper tenon 6 is lowered, the side wall of the upper tenon 6 cooperates with the slot of the lower tenon, and the lower tenon 7 is pulled back to the inside of the column head. At this time, the lock 10 is unlocked from the suspension column 2, and after the lock is lifted, the lock is separated from the suspension column to complete the hook removal. This embodiment can reduce the height of the hook removal by increasing the length of the pull rope, thereby reducing the risk of hook removal.

[0045] The central opening of the lock in this embodiment is perfectly matched with the column head, so that the lock device can quickly buckle the lifting ring on the hanging column before lifting, and it can be intuitively seen whether it is installed in place. After the lifting of the object is completed, it can be automatically unhooked by pulling the lifting rod, and the unhooking process is simple and easy to operate. The height required for unhooking is low, and there is no need to remove the hook from high altitude, which improves construction efficiency.

[0046] Embodiment 2

[0047] In a typical embodiment of the present invention, reference is made to Figure 1-Figure 4 As shown, a working method of a quick-release locking device is characterized by comprising the following steps:

[0048] First, the first spring 8 and the second spring 9 are in a free state, the lower tenon 7 moves outward, and the upper tenon moves upward. At the same time, the contact surfaces of the upper tenon and the lower tenon are at their respective outermost ends, ensuring that the lower tenon can move to the outermost side. Before preparing for lifting, the lock 10 is buckled on the column head 4, and the lock 10 is pressed so that the lower end of the central opening of the lock 10 presses the lower tenon 7 inward until the lower tenon 7 is completely entered into the interior of the column head, and the column head 4 enters the central hole of the lock until the lock 10 is completely passed through the lower tenon 7. The lower tenon 7 moves outward under the elastic force of the second spring, and the bottom surface of the lower tenon 7 contacts the top surface of the lock, tightly locking the movement of the lock.

[0049] Furthermore, when the hoisting is started, do not pull the lifting rod during the hoisting process. The lower tenon 7 is always kept on the outside under the elastic force of the second spring, locking the lock 10 and limiting the movement of the lock.

[0050] Furthermore, after the lifting is completed, the lifting rod 5 is pulled to move the upper tenon 7 downward, the first spring 8 is compressed, and under the interaction of the contact surfaces of the upper and lower tenons, the lower tenon 7 moves inward until it completely enters the interior of the column head 4, pulling the second plate-type lifting ear 3 to enable the hanging column 2 to disengage from the lock 10.

[0051] After the hoisting is completed, when the lifting rod 5 is pulled, the upper tenon 6 is forced to move the lower tenon 7 toward the center of the column head 4 until the lower tenon 7 is completely moved straight into the column head 4, and the column head 4 can automatically escape from the lock. It is simple, convenient and easy to operate, with good safety performance. The lock device is novel in design, easy to carry, easy to manufacture, safe and reliable, and can be reused. It has the characteristics of a wide range of applications, easy operation, and cost savings. When unhooking, the pull rope of this embodiment is set to reduce the height required for unhooking. By extending the length of the pull rope, there is no need to unhook at high altitude, which reduces the safety risk of unhooking. It is suitable for material reversal, unhooking at high altitude, and repeated use, saving time and effort.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A quick-release locking device, characterized in that: The invention comprises a lock and a hanging column, wherein the lock has a central opening, a first plate-type hanging ear is provided at the top, a second plate-type hanging ear is provided at the bottom of the hanging column, and a column head is provided at the top, the column head is used to pass through the opening of the lock, the column head is hollow near the top and is connected to a plurality of openings on the periphery of the column head, a central cone column is provided in the hollow part of the column head, the top end of the central cone column is connected to an upper tenon through a first spring, the side surface of the central cone column is connected to a lower tenon through a second spring, the lower tenon part slides in cooperation with the opening, a vertical opening is provided on the central cone column and extends to the lower end face of the hanging column, a pull rope is connected to the upper tenon part through the vertical opening, the top face of the lower tenon part is inclinedly grooved, the bottom end of the upper tenon part slides in cooperation with the groove, and the pull rope pulls the upper tenon part so that the upper tenon part pulls the lower tenon part into the inside of the column head.

2. A quick-release locking device according to claim 1, characterized in that: The lock is a plate-shaped structure, and the bottom edge of the central opening is a slope.

3. A quick-release locking device according to claim 2, characterized in that: The lower tenon is arranged obliquely away from the top surface of one end of the central cone column and cooperates with the inclined surface.

4. A quick-release locking device according to claim 1, characterized in that: The upper tenon is a quadrangular pyramid structure, and the bottom of the upper tenon is hollow. The side wall of the upper tenon is used for sliding cooperation with the slot of the lower tenon.

5. A quick-release locking device according to claim 4, characterized in that: The lower tenon is a rectangular parallelepiped structure, the slot of the lower tenon is arranged on the top surface of the lower tenon close to one end of the central cone column, the inclination of the slot is consistent with the inclination of the side wall of the upper tenon, and the bottom surface of the lower tenon is a plane structure.

6. A quick-release locking device according to claim 1, characterized in that: One end of the first spring is connected to the central cone column, and the other end is connected to the center of the bottom of the upper tenon.

7. A quick-release locking device according to claim 1, characterized in that: One end of the second spring is connected to the side surface of the central cone column, and the other end is connected to the end of the lower tenon.

8. A quick-release locking device according to claim 1, characterized in that: The bottom end of the pull rope extends to below the suspension column through the vertical opening, the bottom end of the pull rope is connected to the suspension rod, and the top end passes through the first spring to connect to the upper tenon.

9. A quick-release locking device according to claim 1, characterized in that: The outer diameter of the column head is adapted to the inner diameter of the central opening of the lock.

10. A working method of a quick-release locking device according to any one of claims 1 to 9, characterized in that: The steps include: Before lifting, buckle the lock on the column head and press the lock. The lower end of the central opening of the lock presses the lower tenon inward until the lower tenon is completely inserted into the column head. The column head enters the central opening of the lock. After the lock is completely passed through the lower tenon, the lower tenon extends out to lock the lock. Then, the lifting starts through the second plate-type lifting ear. After the lifting is completed, the pull rope is pulled, the upper tenon piece moves downward, causing the lower tenon piece to move inward, until the lower tenon piece is completely inserted into the column head, and the hanging column is released from the lock.

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