Lifting appliance suitable for small casting with through hole

Abstract

The utility model relates to a lifting appliance suitable for a small casting with a through hole, which comprises an L-shaped lifting rod, the top of the lifting rod is connected with a lifting ring, the lifting ring is connected with a lifting chain, and the side part of the lifting rod is connected with a handheld extension rod which extends horizontally. The lifting appliance suitable for the small casting with the through hole is simple in structure, the handheld extension rod is arranged to be connected with the L-shaped lifting rod, the lifting chain at the top of the lifting rod is connected with the lifting hook of the workshop electric hoist, a worker can hold the handheld extension rod to control the lifting rod, the lifting rod is hooked into the through hole of the casting, and then the electric hoist lifts and transfers the casting through the lifting appliance; and a worker synchronously holds the handheld extension rod to cooperatively move.

Description

Technical Field

[0001] The utility model relates to a lifting tool applicable to small castings with through holes. Background Art

[0002] A casting is a metal formed object obtained by various casting methods, that is, a molten metal that has been smelted is poured, injected, sucked or other casting methods into a pre-prepared mold to obtain an object with a certain shape.

[0003] When the casting of a small casting with a through hole is completed and the temperature of the casting has not yet dropped, if it is necessary to lift such a casting at this time, since the temperature of the casting is relatively high, it is difficult for the staff to approach the casting with an ordinary lifting tool, resulting in inconvenient lifting. Content of the Utility Model

[0004] In view of the deficiencies of the prior art, the technical problem to be solved by the utility model is to provide a lifting tool applicable to small castings with through holes.

[0005] To solve the above technical problem, the technical solution of the utility model is: a lifting tool applicable to small castings with through holes, including an "L"-shaped hanging rod, a hanging ring is connected to the top of the hanging rod, a hanging chain is connected to the hanging ring, and a horizontally extending hand-held extension rod is connected to the side of the hanging rod.

[0006] Preferably, the hand-held extension rod is fixedly arranged at the top of the vertical section of the hanging rod and is perpendicular to the vertical section of the hanging rod. The bottom end of the vertical section of the hanging rod is fixedly provided with a hook rod that warps upwards to be inserted into the through hole on the casting.

[0007] Preferably, the bottom of the hanging ring is connected with an "L"-shaped connecting frame, the connecting frame is rotatably connected with the hanging ring, the rotation axis is vertical, and the connecting frame is horizontally slidably connected with the hand-held extension rod.

[0008] Preferably, the top end of the vertical section of the connecting frame coaxially passes through the installation through hole opened at the bottom end of the hanging ring from bottom to top, and a limiting end head with an outer diameter larger than the inner diameter of the installation through hole is fixedly arranged at the top end of the vertical section of the connecting frame.

[0009] Preferably, a horizontal movement guide hole is coaxially opened on the horizontal section of the connecting frame, the hand-held extension rod is coaxially arranged in the horizontal movement guide hole, and the hand-held end of the hand-held extension rod is located outside one side of the connecting frame, and the hanging rod end of the hand-held extension rod is located outside the other opposite side of the connecting frame.

[0010] Preferably, an auxiliary handle is fixedly arranged on the end side of the horizontal section of the connecting frame close to the hand-held end of the hand-held extension rod.

[0011] Preferably, the hanging chain is a ring chain and is hung on the hanging ring.

[0012] Compared with the prior art, the utility model has the following beneficial effects: The structure of the lifting tool applicable to small castings with through holes is simple. By setting a hand-held extension rod to connect the "L"-shaped hanging rod, the hanging chain at the top of the hanging rod is connected to the hook of the electric hoist in the workshop. The staff can hold the hand-held extension rod to manipulate the hanging rod, hook the hanging rod into the through hole of the casting, and then the electric hoist lifts and transports the casting through this lifting tool, and the staff synchronously holds the hand-held extension rod to cooperate with the movement.

[0013] The following further elaborates on the present utility model in conjunction with the accompanying drawings and specific embodiments. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model.

[0015] Figure 2 It is a connection schematic diagram of the lifting ring.

[0016] Figure 3 It is a schematic diagram of a working state one of an embodiment of the present utility model.

[0017] Figure 4 It is a schematic diagram of a working state two of an embodiment of the present utility model.

[0018] Figure 5 It is a schematic diagram of a working state three of an embodiment of the present utility model.

[0019] Figure 6 It is another schematic diagram of a working state of an embodiment of the present utility model. Specific Embodiments

[0020] The following further describes the present utility model in conjunction with the accompanying drawings and embodiments.

[0021] It should be noted that the following detailed descriptions are all exemplary and are intended to provide further explanations for the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0022] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0023] As Figures 1 - 6As shown in the figure, this embodiment provides a lifting tool applicable to small castings with through holes, including an "L"-shaped suspension rod 1. A lifting ring 2 is connected to the top of the suspension rod. A lifting chain 3 is connected to the lifting ring. A horizontally extending hand-held extension rod 4 is connected to the side of the suspension rod.

[0024] The structure of the lifting tool applicable to small castings with through holes is simple. By setting a hand-held extension rod to connect the "L"-shaped suspension rod, and the lifting chain at the top of the suspension rod is connected to the hook of the electric hoist in the workshop. The staff can hold the hand-held extension rod to manipulate the suspension rod, so that the suspension rod is hooked into the through hole 6 of the casting 5. Then, the electric hoist lifts and transports the casting through this lifting tool, and the staff synchronously holds the hand-held extension rod to cooperate with the movement and maintain balance (since the weight of small castings is generally light, it is not laborious for the staff to synchronously hold the hand-held extension rod to cooperate with the movement and maintain balance).

[0025] In the embodiment of the present utility model, the hand-held extension rod is fixedly arranged at the top of the vertical section 7 of the suspension rod and is perpendicular to the vertical section of the suspension rod. A hook rod 8 that is slightly warped upward is fixedly arranged at the bottom of the vertical section of the suspension rod for inserting into the through hole on the casting.

[0026] In the embodiment of the present utility model, an "L"-shaped connecting frame 9 is connected to the bottom of the lifting ring. The connecting frame is rotatably connected to the lifting ring, and the rotation axis is vertical. The connecting frame is horizontally slidably connected to the hand-held extension rod.

[0027] In the embodiment of the present utility model, the top end of the vertical section of the connecting frame coaxially passes through the installation through hole 10 opened at the bottom end of the lifting ring from bottom to top, and a limiting end 11 with an outer diameter larger than the inner diameter of the installation through hole is fixedly arranged at the top end of the vertical section of the connecting frame.

[0028] In the embodiment of the present utility model, a horizontal movement guide hole 12 is coaxially opened on the horizontal section of the connecting frame. The hand-held extension rod is coaxially inserted into the horizontal movement guide hole, and the hand-held end 15 of the hand-held extension rod is located outside one side of the connecting frame, and the suspension rod end of the hand-held extension rod is located outside the other opposite side of the connecting frame.

[0029] In the embodiment of the present utility model, an auxiliary handle 13 is fixedly arranged on the end side of the horizontal section of the connecting frame close to the hand-held end of the hand-held extension rod.

[0030] In the embodiment of the present utility model, the lifting chain is an annular chain and is hung on the lifting ring.

[0031] In the embodiment of the present utility model, the working principle of the lifting tool applicable to small castings with through holes is as follows:

[0032] During use, connect the sling chain of the sling to the hook 14 of the electric hoist in the workshop, and let the electric hoist lift the sling and move it near the casting to be lifted. Align the hook rod of the suspension rod with the through hole temporarily used as the lifting hole on the casting. After alignment, a worker holds the auxiliary handle with one hand without moving, and holds the hand-held extension rod with the other hand and pushes it forward, so that the hand-held extension rod moves forward under the guidance of the transverse movement guide hole and the hook rod of the suspension rod is inserted into the through hole of the casting. Then the electric hoist starts to lift and transport the casting to the next station. During this period, the worker synchronously holds the hand-held extension rod to cooperate with the movement and maintain balance (since the weight of small castings is generally light, it is not strenuous for the worker to synchronously hold the hand-held extension rod to cooperate with the movement and maintain balance). After the casting arrives at the station and is placed on the station, a worker holds the auxiliary handle with one hand without moving, and holds the hand-held extension rod with the other hand and pulls it backward, so that the hand-held extension rod moves backward under the guidance of the transverse movement guide hole and the hook rod of the suspension rod is withdrawn from the through hole of the casting.

[0033] Among them, the action of "inserting the hook rod of the suspension rod into the through hole of the casting" can also be directly achieved by controlling the electric hoist to move in the direction of the through hole, but the operation of the electric hoist is relatively cumbersome. By setting a transverse sliding connection between the connecting frame and the hand-held extension rod, this sling can achieve this action without using an electric hoist. A worker holds the auxiliary handle with one hand without moving, and holds the hand-held extension rod with the other hand and pushes it forward, so that the hand-held extension rod moves forward under the guidance of the transverse movement guide hole and the hook rod of the suspension rod is inserted into the through hole of the casting, and the operation is more simple and convenient.

[0034] However, if the weight of some small castings is heavy, then when using the sling, the hand-held extension rod and the connecting frame do not move relatively horizontally. Instead, the electric hoist is directly used to control the sling to move in the direction close to the through hole of the casting to insert the hook rod into the through hole of the casting, or the electric hoist is used to control the sling to move in the direction away from the through hole of the casting to withdraw the hook rod from the through hole of the casting. During the lifting process of the casting, the casting is almost directly below the hook, and most of the weight of the casting is borne by the hook (as Figure 6 shown in the state).

[0035] During the lifting process of the casting, the hand-held extension rod can drive the suspension rod to rotate horizontally by 360° relative to the sling ring through the connecting frame when needed, which is convenient for changing the horizontal orientation of the casting. The provided installation through hole facilitates the rotation of the connecting frame relative to the sling ring on the installation through hole. Because if the connecting frame and the sling ring are directly fixedly connected as a whole, then when the connecting frame and the sling ring rotate, they will drive the annular sling chain to rotate together. When the annular sling chain rotates to a certain angle, it will start to spiral and wind itself, resulting in more strenuous subsequent further rotation and making it difficult to achieve a 360° horizontal rotation adjustment.

[0036] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution content of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A hanger suitable for small castings with through holes, characterized in that: The utility model comprises an L-shaped suspension rod, the top of the suspension rod is connected with a suspension ring, the suspension ring is connected with a suspension chain, and the side of the suspension rod is connected with a horizontally extending hand-held extension rod.

2. The hanger for small castings with through holes according to claim 1 is characterized in that: The hand-held extension rod is fixed on the top of the vertical section of the suspension rod and is perpendicular to the vertical section of the suspension rod. The bottom end of the vertical section of the suspension rod is fixed with an upwardly curved hook rod for inserting into the through hole on the casting.

3. The hanger for small castings with through holes according to claim 1 is characterized in that: An "L"-shaped connecting frame is connected to the bottom of the hanging ring. The connecting frame is rotatably connected to the hanging ring, and the rotating axis is vertical. The connecting frame is lateral slidingly connected to the hand-held extension rod.

4. The hanger for small castings with through holes according to claim 3 is characterized in that: The top of the vertical section of the connecting frame coaxially passes through the installation through hole opened at the bottom end of the lifting ring from bottom to top, and the top of the vertical section of the connecting frame is fixedly provided with a limiting end with an outer diameter larger than the inner diameter of the installation through hole.

5. The hanger for small castings with through holes according to claim 3 is characterized in that: A transverse guide hole is coaxially opened on the horizontal section of the connecting frame, and the hand-held extension rod is coaxially penetrated through the transverse guide hole, and the hand-held end of the hand-held extension rod is located outside one side of the connecting frame, and the suspension rod end of the hand-held extension rod is located outside the other opposite side of the connecting frame.

6. The hanger for small castings with through holes according to claim 5, characterized in that: An auxiliary handle is fixedly arranged on the horizontal section of the connecting frame on the end side close to the hand-grip end of the hand-grip extension rod.

7. The hanger for small castings with through holes according to claim 1, characterized in that: The hanging chain is a ring chain and is hung on the hanging ring.

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