A stud quick hoisting tool

Abstract

This utility model belongs to the technical field of lifting tools and discloses a quick lifting tool for studs, including a first toothed plate and a second toothed plate. The first toothed plate is concave, and the second toothed plate is convex. The second toothed plate rotates on the inner wall of the first toothed plate. A support pin is rotatably connected inside the circular slots of the first and second toothed plates. The support pin is used to limit the overlap at the bottom of the first and second toothed plates. Spring positioning pins are threadedly connected to the surfaces of the first and second toothed plates. When the spring positioning pin is inserted into the first toothed plate and abuts against the second toothed plate, the first and second toothed plates are in a pressed and locked state. When the spring positioning pin is released from the abutment of the first and second toothed plates, the first and second toothed plates are in an unlocked state. Through the above solution, the problem of using eye bolts to lift threaded parts is solved. When using eye bolts, the threads need to be tightened, which takes a long time. When the threads are long, they cannot be tightened, which can easily lead to safety accidents.

Description

Technical Field

[0001] This utility model belongs to the field of hoisting tool technology, specifically a stud quick hoisting tool. Background Technology

[0002] When lifting threaded parts, eye nuts are used. However, eye nuts need to be tightened, which takes a long time. If the threads are too long, they cannot be tightened properly, which can easily lead to safety accidents. Utility Model Content

[0003] To address the problems mentioned in the background art, this utility model provides a quick stud lifting tool, which has the advantages of reducing the tightening time of eye nuts and improving production efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a stud quick-lifting tool, including a first toothed plate and a second toothed plate. The first toothed plate is concave, and the second toothed plate is convex. The second toothed plate rotates on the inner wall of the first toothed plate. The first and second toothed plates can rotate freely. A support pin is rotatably connected inside the circular slots of the first and second toothed plates. The support pin is used to limit the overlap at the bottom of the first and second toothed plates. A spring positioning pin is threadedly connected to the surfaces of the first and second toothed plates. When the spring positioning pin is inserted into the first toothed plate and abuts against the second toothed plate, the first and second toothed plates are in a pressed and locked state. When the spring positioning pin releases the abutment between the first and second toothed plates, the first and second toothed plates are in an unlocked state. The rotation angle between the first and second toothed plates is limited to within 45°.

[0005] Preferably, a semi-threaded groove is provided at the center of the top of the first and second toothed plates. The first and second toothed plates are in the same horizontal state, and the two sets of semi-threaded grooves form a complete threaded groove. The threaded groove is used to clamp the surface of the subsequent workpiece.

[0006] Preferably, the two ends of the support pin at the overlapping bottom ends of the first and second toothed plates are provided with annular grooves, and a retaining spring is sleeved inside the annular groove of the support pin, and the retaining spring is pressed against the annular groove of the support pin and the surfaces of the first and second toothed plates respectively.

[0007] Preferably, lifting rings are threadedly connected to both sides of the center position of tooth plate one and tooth plate two, the top of the lifting rings is set in an arc shape, a threaded groove is opened on the side of tooth plate one, and a positioning groove is opened on the surface of tooth plate two near the threaded groove of tooth plate one.

[0008] Preferably, a spring locating pin is threaded inside the threaded groove of the first tooth plate, and the spring locating pin passes through the end of the threaded groove of the first tooth plate and is connected to the locating groove of the second tooth plate.

[0009] Preferably, when an angle is formed between toothed plate one and toothed plate two, the clamping state is achieved, and when the angle between toothed plate one and toothed plate two is 0°, the clamping is achieved.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model improves the lifting speed by changing the rotation method of the thread to a clamping method. At the same time, due to the greater friction of clamping, it prevents the relative rotation between the lifting tool and the workpiece, reduces the tightening time of the lifting eye nut, and improves production efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall exploded view of this utility model; Figure 3 This is a schematic diagram of the rotating jaw plate one and jaw plate two of this utility model; Figure 4 This is a cross-sectional structural diagram of the present invention; Figure 5 This is a schematic diagram of the structure of the present invention in the pressed state.

[0012] In the diagram: 1. Tooth plate one; 2. Tooth plate two; 3. Support pin; 4. Snap ring; 5. Lifting ring; 6. Spring positioning pin. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] like Figures 1 to 5 As shown, this utility model provides a quick stud lifting tool, including a first toothed plate 1 and a second toothed plate 2. The first toothed plate 1 is set in a concave shape, and the second toothed plate 2 is set in a convex shape. The second toothed plate 2 rotates on the inner wall of the first toothed plate 1. The second toothed plate 2 and the first toothed plate 1 can rotate freely. A support pin 3 is rotatably connected inside the circular slot of the first toothed plate 1 and the second toothed plate 2. The support pin 3 is used to limit the overlap of the bottom ends of the first toothed plate 1 and the second toothed plate 2. A spring positioning pin 6 is threadedly connected to the surface of the first toothed plate 1 and the second toothed plate 2. When the spring positioning pin 6 is inserted into the first toothed plate 1 and abuts against the second toothed plate 2, the first toothed plate 1 and the second toothed plate 2 are in a pressed and locked state. When the spring positioning pin 6 releases the abutment of the first toothed plate 1 and the second toothed plate 2, the first toothed plate 1 and the second toothed plate 2 are in an unlocked state. The rotation angle between the first toothed plate 1 and the second toothed plate 2 is limited to within 45°. In this embodiment, toothed plate 1 and toothed plate 2 are connected together by a support pin 3, and the support pin 3 is fixed with a snap ring 4. Lifting rings 5 ​​are installed on toothed plate 1 and toothed plate 2 respectively, and a spring positioning pin 6 is installed on one side. When in use, pull open the spring positioning pin 6 to separate toothed plate 1 and toothed plate 2, and put them on the workpiece. Then close the two toothed plates 1 and 2 until the spring positioning pin 6 enters the positioning hole to prevent the lifting rings 5 ​​on both sides of toothed plate 1 and toothed plate 2 from being lifted by force. Due to their own weight and the lever principle, toothed plate 1 and toothed plate 2 form a self-locking mechanism to lift the part. After the hoisting is completed, pull the spring positioning pin 6 to quickly remove the lifting device.

[0015] Compared to conventional threaded eyelets, changing the tightening process to an opening and closing process reduces installation time and improves production efficiency. Specifically, a semi-threaded groove is provided at the center of the top of toothed plate 1 and toothed plate 2. Toothed plate 1 and toothed plate 2 are in the same horizontal state, and the two sets of semi-threaded grooves form the entire threaded groove. The threaded groove is used to clamp the surface of the subsequent workpiece.

[0016] Furthermore, at the overlapping bottom ends of toothed plates 1 and 2, the support pin 3 has annular grooves on both sides. A retaining spring 4 is fitted inside the annular groove of the support pin 3, and the retaining spring 4 abuts against the annular groove of the support pin 3 and the surfaces of toothed plates 1 and 2, respectively. This prevents the support pin 3 from falling out of the interior of toothed plates 1 and 2.

[0017] Furthermore, lifting rings 5 ​​are threadedly connected to both sides of the center position of toothed plate 1 and toothed plate 2. The top of the lifting ring 5 is set in an arc shape. A threaded groove is opened on the side of toothed plate 1, and a positioning groove is opened on the surface of toothed plate 2 near the threaded groove of toothed plate 1. A spring positioning pin 6 is threadedly connected inside the threaded groove of toothed plate 1, and the end of the spring positioning pin 6 penetrates the threaded groove of toothed plate 1 and abuts against the positioning groove of toothed plate 2, dividing the thread into two parts. Through the lever structure, the workpiece's own weight forms a self-locking mechanism. At the same time, the spring positioning pin 6 is installed as a safety device. 0.5mm is removed between the two parts of the thread. This gap allows the tooling thread to make close contact with the workpiece and prevents the workpiece from rotating.

[0018] It is worth noting that when an angle is formed between toothed plate 1 and toothed plate 2, the clamping state is achieved, and when the angle between toothed plate 1 and toothed plate 2 is 0°, the clamping is achieved.

[0019] Among them, tooth plate 1 and tooth plate 2 are existing technologies and will not be described in detail; at the same time, this utility model also includes a power supply, controller and switch, etc., which are not the main technical points of this patent and will not be described in detail; the "front, back, left and right" perspectives of this device are as follows: Figure 1 The direction shown in the diagram is the reference.

[0020] Working principle: When hoisting is required, the top ends of toothed plates 1 and 2 need to be unfolded at an angle, and the spring locating pin 6 should be pulled outward. During the pulling process, simply release the end of the spring locating pin 6 from the limiting groove of toothed plate 2. Since the limiting of the spring locating pin 6 is gone, an angle is created between toothed plates 1 and 2. Place the workpiece between the threaded grooves of toothed plates 1 and 2, put it on the thread, and align toothed plates 1 and 2. Push the spring locating pin 6 into the threaded groove of toothed plate 1, ensuring that the end of the spring locating pin 6 is locked inside the limiting groove of toothed plate 2. Connect the hoisting tool to the lifting ring 5 and move toothed plates 1 and 2 to the top. The lifting rings 5 ​​on both sides are lifted by force. Toothed plates 1 and 2 form a self-locking mechanism due to their own weight and the principle of the hoisting tool, lifting the part. After hoisting is completed, pull the retaining spring 4 to quickly remove the hoisting tool.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-lifting tool for studs, comprising a first toothed plate (1) and a second toothed plate (2), the first toothed plate (1) being concave and the second toothed plate (2) being convex, the second toothed plate (2) rotating on the inner wall of the first toothed plate (1), and the second toothed plate (2) and the first toothed plate (1) being freely rotatable, characterized in that: A support pin (3) is rotatably connected inside the circular slot of tooth plate 1 (1) and tooth plate 2 (2). The support pin (3) is used to limit the overlap of the bottom ends of tooth plate 1 (1) and tooth plate 2 (2). A spring positioning pin (6) is threadedly connected to the surface of tooth plate 1 (1) and tooth plate 2 (2). When the spring positioning pin (6) is inserted into tooth plate 1 (1) and abuts against tooth plate 2 (2), tooth plate 1 (1) and tooth plate 2 (2) are in a pressed and locked state. When the spring positioning pin (6) releases the abutment of tooth plate 1 (1) and tooth plate 2 (2), tooth plate 1 (1) and tooth plate 2 (2) are in an unlocked state. The rotation angle between tooth plate 1 (1) and tooth plate 2 (2) is limited to within 45°.

2. A stud quick hoisting tool according to claim 1, characterized in that: The top center of the first toothed plate (1) and the second toothed plate (2) are provided with a semi-threaded groove. The first toothed plate (1) and the second toothed plate (2) are in the same horizontal state, and the two sets of semi-threaded grooves form the entire threaded groove. The threaded groove is used to clamp the surface of the subsequent workpiece.

3. A stud quick lifting tool according to claim 2, characterized in that: At the bottom overlap of toothed plate 1 (1) and toothed plate 2 (2), the two ends of the support pin (3) are provided with annular grooves. A retaining spring (4) is sleeved inside the annular groove of the support pin (3), and the retaining spring (4) is pressed against the annular groove of the support pin (3) and the outside of toothed plate 1 (1) and toothed plate 2 (2).

4. A stud quick lifting tool according to claim 3, characterized in that: The center positions of tooth plate 1 (1) and tooth plate 2 (2) are respectively connected to lifting rings (5) by threads. The top of the lifting ring (5) is set in an arc shape. The side of tooth plate 1 (1) is provided with a threaded groove. The surface of tooth plate 2 (2) near the threaded groove of tooth plate 1 (1) is provided with a positioning groove.

5. A stud quick hoist tool according to claim 4, wherein: The threaded groove of tooth plate one (1) is threaded with a spring positioning pin (6), and the end of the spring positioning pin (6) penetrates the threaded groove of tooth plate one (1) and abuts against the positioning groove of tooth plate two (2).

6. A stud quick lifting tool according to claim 5, characterized in that: When an angle is formed between toothed plate 1 (1) and toothed plate 2 (2), the clamping state is achieved. When the angle between toothed plate 1 (1) and toothed plate 2 (2) is 0°, the clamping is achieved.

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