Anti-falling lifting appliance

Abstract

The utility model provides an anti-falling lifting appliance. The anti-falling lifting appliance comprises a lifting frame and a pressing plate, a first limiting groove penetrating through the hanging bracket in the front-back direction is formed in the upper end of the hanging bracket. A second limiting groove penetrating through the pressing plate in the front-back direction is formed in the lower end of the pressing plate, the pressing plate is arranged at the upper end and / or the side end of the hanging bracket, so that a limiting hole is defined by the first limiting groove and the second limiting groove, and the limiting hole is used for installing a chain wheel transmission device. Due to the fact that the pressing plates are installed at the upper end and the side end of the hanging bracket, that is, the pressing plates make contact with the upper end and the side end of the hanging bracket, when the chain wheel transmission device lifts an object and the hanging bracket inclines due to the influence of the gravity center of the object, the chain wheel transmission device is still installed in the limiting hole, and the chain wheel transmission device cannot fall off. And the phenomenon that the chain wheel transmission device falls off from the hanging bracket due to inclination of the hanging bracket in the prior art is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment lifting and hoisting devices, in particular to an anti-falling lifting device. Background Art

[0002] In current industrial production, hoists are widely used as lifting equipment. The balance hoist is a device used to lift and flip the sand box. Due to its simple structure and easy use, it is widely used in the foundry industry. After the sand mold is formed, the sliding ring chains at both ends of the balance hoist are needed to flip the sand box to take out the mold or close the box. Due to the difference in the size of the sand box, the spacing between the two sprocket drive devices needs to be adjusted before lifting to ensure that the two sprocket drive devices are subjected to the same force. However, adjusting the spacing between the two sprocket drive devices requires manual operation, and it is often difficult to keep the balance and stability of the balance hoist, which eventually leads to the sprocket drive device being unhooked, posing a very large safety hazard. Utility Model Content

[0003] In view of the above problems, the utility model is proposed to provide an anti-falling sling that overcomes the above problems or at least partially solves the above problems, which can solve the problem that it is difficult to maintain the balance and stability of the balance sling, which eventually leads to the unhooking of the sprocket transmission device, thereby achieving the effect of preventing the sprocket transmission device from falling off.

[0004] Specifically, the utility model provides an anti-falling sling, comprising:

[0005] A hanger, wherein the upper end of the hanger is provided with a first limiting groove penetrating the hanger in the front-to-back direction;

[0006] A pressure plate, wherein the lower end of the pressure plate is provided with a second limiting groove penetrating the pressure plate in the front-to-back direction, and the pressure plate is arranged at the upper end and / or the side end of the hanger so that the first limiting groove and the second limiting groove define a limiting hole, and the limiting hole is used to install a sprocket transmission device.

[0007] Optionally, the inner wall surface of the first limiting groove is an arc-shaped surface; the inner wall surface of the second limiting groove is an arc-shaped surface, and the two arc-shaped surfaces are smoothly transitioned; or,

[0008] The limiting hole is a round hole.

[0009] Optionally, the inner wall surface of the first limiting groove includes a bottom wall and two side walls connected to the bottom wall: the angles between the two side walls and the bottom wall are both obtuse angles.

[0010] Optionally, the pressing plate comprises:

[0011] A horizontal plate, the horizontal plate being arranged at the upper end of the hanger;

[0012] A vertical plate is connected to one end of the horizontal plate and is arranged at a side end of the hanger.

[0013] Optionally, the anti-falling sling further comprises:

[0014] A movable hinge ear seat, which is installed at the upper end of the hanger and is used to flexibly connect one end of the pressing plate to the hanger;

[0015] A fixed hinge ear seat is installed on the side end of the hanger, and the other end of the pressure plate is connected to the fixed hinge ear seat by a bolt or a pin.

[0016] Optionally, the hanger extends transversely; there are two pressing plates, which are symmetrically arranged along the center line of the hanger;

[0017] There are multiple limiting holes defined by each of the pressing plates and the hanger, which are arranged in sequence along the extension direction of the hanger.

[0018] Optionally, there is a gap between the two pressing plates.

[0019] Optionally, the anti-drop hanger further comprises two sprocket transmission devices;

[0020] One of the sprocket transmission devices is installed in the limiting hole on one side of the center line, and the other sprocket transmission device is installed in the limiting hole on the other side of the center line; and the two sprocket transmission devices are symmetrically arranged along the center line.

[0021] Optionally, the sprocket transmission device comprises:

[0022] A hanging ring, the hanging ring is hung in the limiting hole;

[0023] A pulley seat, the pulley seat being arranged at the lower end of the hanging ring;

[0024] A pulley, the pulley is disposed in the pulley seat and is rotatably connected to the pulley seat;

[0025] A chain is sleeved on the pulley.

[0026] Optionally, the anti-falling sling further comprises:

[0027] A hook, located above the hanger;

[0028] Two lifting rings are installed on the hanger and are symmetrically arranged along the center line of the hanger. The two lifting rings are used to connect the hook with the hanger.

[0029] In the anti-drop hanging device of the utility model, after the pressure plate is installed, the first limiting groove on the hanger and the second limiting groove on the pressure plate are connected to form a limiting hole, and the sprocket transmission device is installed in the limiting hole. Since the pressure plate is installed at the upper end and the side end of the hanger, that is, the pressure plate is in contact with the upper end and the side end of the hanger, when the sprocket transmission device is lifting an object, when the hanger is tilted due to the influence of the center of gravity of the object, the sprocket transmission device is still installed in the limiting hole, and the sprocket transmission device will not fall off. This avoids the phenomenon in the prior art that the sprocket transmission device falls off the hanger due to the tilt of the hanger.

[0030] Furthermore, in the anti-drop hanger of the utility model, since the inner wall surface of the first limiting groove and the inner wall surface of the second limiting groove are both arc-shaped surfaces, and the inner wall surface of the first limiting groove and the inner wall surface of the second limiting groove have a smooth transition, when the hanger is tilted, one end of the sprocket transmission device installed in the limiting hole can be displaced along the inner wall surface of the limiting hole. The sprocket transmission device extends in the up and down directions, and under the action of gravity, the sprocket transmission device as a whole will not be violently displaced or shaken, so that the life safety of the operator and the property safety in the workshop are guaranteed.

[0031] Based on the detailed description of the specific embodiments of the present invention in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other purposes, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0033] Figure 1 It is a schematic structural diagram of an anti-drop hanger according to an embodiment of the utility model;

[0034] Figure 2 It is a schematic structural diagram of a sprocket transmission device according to an embodiment of the utility model. DETAILED DESCRIPTION

[0035] Refer to the following Figure 1 to Figure 2To describe the anti-slip sling of the embodiment of the utility model. In the description of this embodiment, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and other features may be further included.

[0036] Unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix", "couple" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present utility model according to the specific circumstances.

[0037] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. That is, in the description of this embodiment, the first feature being "above", "above", and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below", or "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0038] In the description of the present embodiment, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0039] Figure 1 : is a schematic structural diagram of an anti-drop hanger according to an embodiment of the utility model, such as Figure 1 As shown, and refer to Figure 2 The embodiment of the utility model provides an anti-drop hanger 100, comprising a hanger 110 and a pressure plate 120. The upper end of the hanger 110 is provided with a first limiting groove penetrating the hanger 110 in the front-to-back direction. The lower end of the pressure plate 120 is provided with a second limiting groove penetrating the pressure plate 120 in the front-to-back direction. The pressure plate 120 is provided at the upper end and the side end of the hanger 110, so that the first limiting groove and the second limiting groove define a limiting hole 130, and the limiting hole 130 is used to install the sprocket transmission device 160.

[0040] In the anti-dropping hanger 100 of the embodiment of the utility model, when assembling the anti-dropping hanger 100, the sprocket transmission device 160 is first installed in the first limiting groove of the hanger 110, and then the pressing plate 120 is pressed from top to bottom on the hanger 110, and the pressing plate 120 is located at the upper end and the side end of the hanger 110. After the pressing plate 120 is installed, the first limiting groove on the hanger 110 and the second limiting groove on the pressing plate 120 are connected to form a limiting hole 130, and the sprocket transmission device 160 is installed in the limiting hole 130. Since the pressing plate 120 is installed at the upper end and the side end of the hanger 110, that is, the pressing plate 120 is in contact with the upper end and the side end of the hanger 110, when the sprocket transmission device 160 is lifting an object, when the hanger 110 is tilted due to the influence of the center of gravity of the object, the sprocket transmission device 160 is still installed in the limiting hole 130, and the sprocket transmission device 160 will not fall off. This avoids the phenomenon in the prior art that the sprocket transmission device 160 falls off the hanger 110 due to the inclination of the hanger 110 .

[0041] Alternatively, after the pressing plate 120 is installed on the hanger 110, the sprocket sliding device is installed in the limiting hole 130 formed between the first limiting groove and the second limiting groove.

[0042] In some alternative embodiments of this embodiment, the pressing plate 120 is disposed at the upper end of the hanger 110 .

[0043] In an alternative embodiment of the present embodiment, the pressing plate 120 is disposed at a side end of the hanger 110 .

[0044] In some embodiments of the present invention, Figure 1 As shown, the pressing plate 120 includes a horizontal plate and a vertical plate. The horizontal plate is arranged at the upper end of the hanger 110. The vertical plate is connected to one end of the horizontal plate and is arranged at the side end of the hanger 110.

[0045] In this embodiment, when the pressing plate 120 is installed on the hanger 110, since the pressing plate 120 includes a vertical plate and a horizontal plate connecting the vertical plates, during the installation process, the horizontal plate of the pressing plate 120 is pressed toward the upper end of the hanger 110. When the side of the horizontal plate connected to the vertical plate is completely in contact with the upper surface of the hanger 110, the horizontal plate is moved away from the vertical plate so that the side of the vertical plate close to the horizontal plate is completely in contact with the side of the hanger 110. In this way, the hanger 110 and the pressing plate 120 can be more stable.

[0046] In some embodiments of the present invention, Figure 1 As shown, the inner wall surface of the first limiting groove is an arc surface. The inner wall surface of the second limiting groove is an arc surface, and the two arc surfaces are smoothly transitioned.

[0047] It can be seen from the above embodiment that the sprocket transmission device 160 is installed in the limiting hole 130 defined by the first limiting groove and the second limiting groove. In this embodiment, since the inner wall surface of the first limiting groove and the inner wall surface of the second limiting groove are both arc-shaped surfaces, and the inner wall surface of the first limiting groove and the inner wall surface of the second limiting groove have a smooth transition. When the hanger 110 is tilted, the end of the sprocket transmission device 160 installed in the limiting hole 130 can be displaced along the inner wall surface of the limiting hole 130. The sprocket transmission device 160 extends in the up and down directions. Under the action of gravity, the sprocket transmission device 160 as a whole will not be violently displaced or shaken, so that the life safety of the operator and the safety of property in the workshop are guaranteed.

[0048] In some embodiments of the present invention, Figure 1 As shown, the limiting hole 130 is a round hole.

[0049] It can be seen from the above embodiment that the sprocket transmission device 160 is installed in the limiting hole 130 defined by the first limiting groove and the second limiting groove. In this embodiment, since the limiting hole 130 is a round hole, the inner wall surface of the limiting hole 130 is very smooth. When the hanger 110 is tilted, one end of the sprocket transmission device 160 installed in the limiting hole 130 can be displaced along the inner wall surface of the limiting hole 130. The sprocket transmission device 160 extends in the up and down directions. Under the action of gravity, the sprocket transmission device 160 as a whole will not be violently displaced or shaken, so that the life safety of the operator and the safety of property in the workshop are guaranteed.

[0050] In some embodiments of the present invention, Figure 1 As shown, the inner wall surface of the first limiting groove includes a bottom wall and two side walls connected to the bottom wall. The angles between the two side walls and the bottom wall are both obtuse angles.

[0051] As can be seen from the above embodiment, the sprocket transmission device 160 is installed in the first limiting groove. In this embodiment, since the angle between the side wall and the bottom wall is an obtuse angle, that is, the side wall is inclined toward the bottom wall. When installing the sprocket transmission device 160, the sprocket transmission device 160 first reaches the upper end of the side wall, then slides into the first limiting groove along the side wall, and finally reaches the bottom wall. This facilitates the installation and adjustment of the sprocket transmission device 160 by the operator.

[0052] In some embodiments of the present invention, Figure 1 As shown, the anti-drop hanger 100 further includes a movable hinge ear seat 140 and a fixed hinge ear seat 150. The movable hinge ear seat 140 is installed at the upper end of the hanger 110, and the movable hinge ear seat 140 is used to flexibly connect one end of the pressure plate 120 with the hanger 110. The fixed hinge ear seat 150 is installed at the side end of the hanger 110, and the other end of the pressure plate 120 is connected to the fixed hinge ear seat 150 by bolts or pins.

[0053] In this embodiment, the movable hinge ear seat 140 is first installed at the installation position of the hanger 110, and then one end of the pressing plate 120 is installed on the movable hinge ear seat 140 to realize the movable connection between the pressing plate 120 and the hanger 110. As can be seen from the above embodiment, the pressing plate 120 is composed of a horizontal plate and a vertical plate connected to the horizontal plate, that is, the pressing plate 120 is L-shaped. In this embodiment, the fixed hinge ear seat 150 is then installed on the side end of the hanger 110, and the other end of the pressing plate 120 is installed on the fixed hinge ear seat 150, so that the pressing plate 120 is fixed to the hanger 110.

[0054] The movable hinge ear seat 140 realizes the movable connection between the pressing plate 120 and the hanger 110, and the fixed hinge ear seat 150 realizes the fixed connection between the pressing plate 120 and the hanger 110. It can be seen from the above embodiment that the sprocket transmission device 160 is installed in the limiting hole 130 defined by the pressing plate 120 and the hanger 110. In this embodiment, when it is necessary to adjust the sprocket transmission device 160, the pressing plate 120 is first disassembled from the fixed hinge ear seat 150, and then the pressing plate 120 is displaced, and then the sprocket transmission device 160 is adjusted. In other words, when adjusting the sprocket transmission device 160, it is not necessary to disassemble the pressing plate 120 from the hanger 110, which reduces the working steps, reduces the labor intensity of the staff, and speeds up the work efficiency.

[0055] In some alternative embodiments of this embodiment, the fixed hinge ear seat 150 is installed at the upper end of the hanger 110.

[0056] In some alternative embodiments to this embodiment, the pressure plate 120 extends in the lateral direction.

[0057] In some embodiments of the present invention, the movable hinge ear seat 140 is used to fix the horizontal plate, and the fixed hinge ear seat 150 is used to fix the vertical plate. In other words, the horizontal plate of the pressing plate 120 is movably connected to the hanger 110 through the movable hinge ear seat 140, and the vertical plate of the pressing plate 120 is fixedly connected to the hanger 110 through the fixed hinge ear seat 150.

[0058] In some alternative embodiments of this embodiment, the movable hinge ear seat 140 is installed at the side end of the hanger 110, and is used to flexibly connect the vertical plate of the pressing plate 120 with the hanger 110. The fixed hinge ear seat 150 is installed at the upper end of the hanger 110, and is used to fixedly connect the horizontal plate of the pressing plate 120 with the hanger 110.

[0059] In some embodiments of the present invention, Figure 1 As shown, the hanger 110 extends transversely. There are a plurality of limiting holes 130, which are sequentially arranged along the extension direction of the hanger 110.

[0060] It can be seen from the above embodiment that the second limiting groove on the pressing plate 120 and the first limiting groove on the hanging bracket 110 are connected to define the limiting hole 130. In this embodiment, there are multiple limiting holes 130, so there are also multiple second limiting grooves on the pressing plate 120 and multiple first limiting grooves on the hanging bracket 110. The provision of multiple limiting holes 130 allows the sprocket transmission device 160 to be adjusted between the multiple limiting holes 130 according to the specific working environment and operation type, so that the anti-drop hanger 100 has a wider range of application.

[0061] In some embodiments of the present invention, Figure 1 As shown, the hanger 110 extends transversely. There are two pressing plates 120, which are symmetrically arranged along the center line of the hanger 110.

[0062] In some embodiments of the present invention, Figure 1 As shown, there is a gap between the two pressing plates 120. As can be seen from the above embodiments, the hanger 110 extends transversely, and the two pressing plates 120 are symmetrical along the center line of the hanger 110. In this example, there is a gap between the pressing plates 120, that is, the hanger 110 is a balance hanger 110.

[0063] In some embodiments of the present invention, Figure 1 As shown, the anti-drop hanger 100 further includes two sprocket transmission devices 160. One of the sprocket transmission devices 160 is installed in the limiting hole 130 on one side of the center line, and the other sprocket transmission device 160 is installed in the limiting hole 130 on the other side of the center line. The two sprocket transmission devices 160 are symmetrically arranged along the center line.

[0064] It can be seen from the above embodiment that the hanger 110 is a balance hanger 110, and the sprocket transmission device 160 is arranged in the limiting hole 130. In this embodiment, one sprocket transmission device 160 is located on one side of the center line of the hanger 110, and another chain 164 transmission device is arranged on the other side of the center line of the hanger 110, and the two sprocket transmission devices 160 are symmetrical along the center line of the hanger 110. When the sprocket transmission device 160 performs a lifting operation, the symmetrically arranged sprocket transmission devices 160 can make the anti-dropping sling 100 run more smoothly.

[0065] In some embodiments of the present invention, Figure 2 As shown, the sprocket transmission device 160 includes a hanging ring 161, a pulley seat 162, a pulley 163 and a chain 164. The hanging ring 161 is hung in the limiting hole 130. The pulley seat 162 is arranged at the lower end of the hanging ring 161. The pulley 163 is arranged in the pulley seat 162 and is rotatably connected to the pulley seat 162. The chain 164 is sleeved on the pulley 163.

[0066] In this embodiment, the chain 164 is used to cover the object to be lifted. When the anti-slip sling 100 performs a lifting operation, the chain 164 on the pulley 163 is firstly covered on the object to be lifted, and then the anti-slip sling 100 moves upward to achieve the lifting of the object and complete the lifting operation.

[0067] It can be seen from the above embodiments that the two sprocket transmission devices 160 are symmetrically arranged along the center line of the hanger 110, and the anti-slip hanger 100 is a balance hanger, which can complete the lifting and flipping operation. Take the foundry industry as an example, I need to use the anti-slip hanger 100 to flip the sand box. During operation, the sand box is placed under the anti-slip hanger 100, and the chain 164 of one of the sprocket transmission devices 160 is set on one end of the sand box, and then the chain 164 of the other sprocket transmission device 160 is set on the other end of the sand box. At this time, the two sprocket transmission devices 160 are relatively arranged along the sand box. Then the anti-slip hanger 100 moves upward, and the chain 164 further drives the sand box to move upward. When the sand box reaches a certain height, the anti-slip hanger 100 stops moving upward. The pulley 163 is rotated to rotate on the pulley seat 162, and the chain 164 is driven to move, and the sand box is further driven to rotate. When the sand box rotates to a suitable angle, the pulley 163 stops rotating, and the sand box is further stopped from rotating. The anti-drop hanger 100 is moved downward to make the sand box reach the ground, and the lifting and flipping operation of the sand box is completed.

[0068] In some embodiments of the present invention, Figure 1As shown, the anti-drop hanger 100 also includes a hook 170 and two rings 180. The hook 170 is located above the hanger 110. The two rings 180 are installed on the hanger 110 and are symmetrically arranged along the center line of the hanger 110. The two rings 180 are used to connect the hook 170 to the hanger 110.

[0069] In this embodiment, the anti-drop hanging device 100 is installed on a designated workstation through a hook 170 and a ring 180. Since the ring 180 is installed on the hanger 110 and symmetrically along the center line of the hanger 110, the hook 170 is installed on the hook 170 to form the balance anti-drop hanging device 100, the structure is very simple.

[0070] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the contents disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. An anti-drop hanging device, characterized in that: include: A hanger, wherein the upper end of the hanger is provided with a first limiting groove penetrating the hanger in the front-to-back direction; A pressure plate, wherein the lower end of the pressure plate is provided with a second limiting groove penetrating the pressure plate in the front-to-back direction, and the pressure plate is arranged at the upper end and / or the side end of the hanger so that the first limiting groove and the second limiting groove define a limiting hole, and the limiting hole is used to install a sprocket transmission device.

2. The anti-drop hanging device according to claim 1, characterized in that: The inner wall surface of the first limiting groove is an arc-shaped surface; the inner wall surface of the second limiting groove is an arc-shaped surface, and the two arc-shaped surfaces are smoothly transitioned; or, The limiting hole is a round hole.

3. The anti-drop hanging device according to claim 1, characterized in that: The inner wall surface of the first limiting groove includes a bottom wall and two side walls connected to the bottom wall: the angles between the two side walls and the bottom wall are both obtuse angles.

4. The anti-drop hanging device according to claim 1, characterized in that: The pressing plate comprises: A horizontal plate, the horizontal plate being arranged at the upper end of the hanger; A vertical plate is connected to one end of the horizontal plate and is arranged at a side end of the hanger.

5. The anti-drop hanging device according to claim 1, characterized in that: Also includes: A movable hinge ear seat, which is installed at the upper end of the hanger and is used to flexibly connect one end of the pressing plate to the hanger; A fixed hinge ear seat is installed on the side end of the hanger, and the other end of the pressure plate is connected to the fixed hinge ear seat by a bolt or a pin.

6. The anti-drop hanging device according to claim 1, characterized in that: The hanger extends transversely; there are two pressing plates, which are symmetrically arranged along the center line of the hanger; There are multiple limiting holes defined by each of the pressing plates and the hanger, which are arranged in sequence along the extension direction of the hanger.

7. The anti-drop hanging device according to claim 6, characterized in that: There is a space between the two pressing plates.

8. The anti-drop hanging device according to claim 6, characterized in that: Also included are two sprocket drives; One of the sprocket transmission devices is installed in the limiting hole on one side of the center line, and the other sprocket transmission device is installed in the limiting hole on the other side of the center line; and the two sprocket transmission devices are symmetrically arranged along the center line.

9. The anti-drop hanging device according to claim 8, characterized in that: The sprocket transmission device comprises: A hanging ring, the hanging ring is hung in the limiting hole; A pulley seat, the pulley seat being arranged at the lower end of the hanging ring; A pulley, the pulley is disposed in the pulley seat and is rotatably connected to the pulley seat; A chain is sleeved on the pulley.

10. The anti-drop hanging device according to claim 1, characterized in that: Also includes: A hook, located above the hanger; Two lifting rings are installed on the hanger and are symmetrically arranged along the center line of the hanger. The two lifting rings are used to connect the hook with the hanger.

Images