Novel lifting appliance

Abstract

The utility model relates to the field of lazy arms, in particular to a novel lifting appliance which comprises a first lazy arm and a second lazy arm, two ends of the first lazy arm are respectively provided with a first hinge seat and a second hinge seat, one end of the second lazy arm is hinged on the second hinge seat, the second lazy arm is provided with a containing through cavity, and the bottom opening of the containing through cavity faces downwards. A first opening is formed in the side, close to the free end of the second lifting arm, of the containing through cavity, a second opening is formed in the side, close to the second hinge base, of the containing through cavity, the size of the second opening is larger than that of the first opening, and an inclined part is arranged on the side wall of the containing through cavity and inclines inwards from one side of the first opening to one side of the second opening. The first lifting arm is hinged to one end of the first lifting arm through the first hinge seat, the first lifting arm swings in the horizontal direction to adjust the position, the second lifting arm is hinged to the other end of the first lifting arm through the second hinge seat, the second lifting arm swings in the horizontal direction relative to the first lifting arm, the requirement for lifting in a larger range of space is met, and good flexibility is achieved.

Description

Technical Field

[0001] The utility model relates to the field of suspension arms, in particular to a novel suspension device. Background Art

[0002] A crane is a mechanical device used for lifting and carrying heavy objects, usually composed of an arm, a hook, a hydraulic system, and a control system. The crane is usually installed on a lifting device or a vehicle, and the hydraulic system can be used to extend and rotate the crane, thereby achieving accurate handling and positioning of heavy objects. Cranes are widely used in construction sites, ports, warehousing and logistics, manufacturing, and other fields for lifting, loading and unloading goods, and carrying of building materials. The working principle of the crane is to use the power provided by the hydraulic system to move the hook up and down and rotate it, thereby completing the lifting and handling of heavy objects. The crane has the characteristics of simple structure, flexible operation, and strong handling capacity. Cranes of different sizes and load-bearing capacities can be selected according to different work requirements. At the same time, the crane also needs professional operation training and regular maintenance to ensure its safe and reliable operation.

[0003] Among them, the application number is 201210062251.3, and the name is an invention patent of a crane arm, which includes a basic arm, a first section arm and a second section arm. By setting a receiving cavity, the first section arm is embedded in the basic arm, and the second section arm is embedded in the first section arm, so that the first section arm and the second section arm can be extended and retracted, so as to achieve the purpose of lifting objects farther away. However, the structure can only be extended and retracted in one direction, and the flexibility is poor. Utility Model Content

[0004] The utility model aims to provide a novel lifting device, aiming to improve the problem that a conventional lifting arm can only be extended and retracted in one direction and has poor flexibility.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A novel lifting device comprises a first lifting arm and a second lifting arm.

[0007] The first boom is provided with a first hinge seat and a second hinge seat at both ends thereof, and one end of the second boom is hinged on the second hinge seat.

[0008] A accommodating cavity is provided on the second suspension arm, and the bottom opening of the accommodating cavity faces downward. A first opening is provided on the side of the accommodating cavity close to the free end of the second suspension arm, and a second opening is provided on the side of the accommodating cavity close to the second hinged seat. The size of the second opening is larger than the first opening. An inclined portion is provided on the side wall of the accommodating cavity, and the inclined portion is inclined inward from the first opening side to the second opening side.

[0009] Furthermore, limiting plates are fixed on both sides of the second suspension arm, and a bending portion is provided on the top of the limiting plate. The bending portion is bent toward the bottom opening of the accommodating cavity and extends to below the bottom opening.

[0010] Further, the first articulated seat includes a first rotating shaft and two mounting rings, one end of the first suspension arm is fixed on the first rotating shaft, and both ends of the first rotating shaft are rotatably fixed on the inner ring surfaces of the two mounting rings through bearings.

[0011] Fixing plates extending outward are arranged on both sides of the mounting ring.

[0012] Furthermore, the second articulated seat includes a second rotating shaft and two mounting plates, the two mounting plates are respectively fixed on both sides of the other end of the first boom, the ends of the two mounting plates extend outward and protrude from the first boom, the two ends of the second rotating shaft are respectively rotatably fixed between the ends of the two mounting plates through the rotating shaft, and one end of the second boom is fixed on the second rotating shaft.

[0013] Furthermore, the first rotating shaft and the second rotating shaft are parallel to each other.

[0014] Furthermore, it also includes a hanging body, wherein the hanging body includes a hanging shell and a hanging component fixed in the hanging shell.

[0015] The hanging shell is embedded in the accommodating cavity through the first opening, and an inclined plate corresponding to the inclined portion is arranged on one side of the hanging shell, and the inclined plate is fitted with the inclined portion.

[0016] Furthermore, the hoisting assembly includes a hoisting plate and a hoisting drive roller arranged on the hoisting plate, and the hoisting plate is fixed on the opening of the hoisting shell.

[0017] The hoisting plate is fixed with oppositely arranged vertical plates, and the two ends of the hoisting drive roller are respectively arranged on the two vertical plates through a rotating shaft. The hoisting plate is provided with a hoisting opening, and the hoisting opening is located at one side of the hoisting drive roller.

[0018] Furthermore, a pushing cylinder and two oppositely arranged slide rails are fixed on the lifting plate, and two vertical plates are respectively slidably arranged on the two slide rails. The pushing cylinder and the lifting port are respectively located on both sides of the lifting drive roller circuit. A pushing rod is fixed to the driving end of the pushing cylinder, and the free end of the pushing rod is fixedly connected to the vertical plate.

[0019] After adopting the above technical solution, the utility model has the following advantages compared with the background technology:

[0020] In this solution, the first articulated seat at one end of the first boom is used to fix with external equipment, so that the first boom can swing in the horizontal direction to adjust its position. The second boom is hinged to the other end of the first boom through the second articulated seat, so that the second boom can swing in the horizontal direction relative to the first boom, so as to meet the needs of hoisting in a wider range of space and have better flexibility. At the same time, the second boom is provided with a first opening and a second opening of different opening sizes, so that the free end of the second boom can be installed with hoisting bodies of more sizes, which has better practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the bottom structure of the novel sling described in the utility model;

[0022] Figure 2 It is a schematic diagram of the top structure of the novel lifting device described in the utility model;

[0023] Figure 3 It is a schematic diagram of the top of the explosion structure of the novel sling described in the utility model;

[0024] Figure 4 It is a schematic diagram of the bottom of the explosion structure of the new type of sling described in the utility model.

[0025] Description of reference numerals:

[0026] 1. first boom; 11. first hinge seat; 111. first rotating shaft; 112. mounting ring; 113. fixing plate; 114. through hole;

[0027] 12. second hinge seat; 121. second rotating shaft; 122. mounting plate;

[0028] 2. second suspension arm; 21. accommodating chamber; 211. bottom opening; 212. first opening; 213. second opening; 214. inclined portion;

[0029] 3. Lifting body; 31. Lifting shell; 311. Inclined plate; 32. Lifting assembly; 321. Lifting plate; 3211. Lifting port; 322. Lifting drive roller; 323. Vertical plate; 3231. Sliding block; 324. Slide rail; 3241. Slide groove; 325. Push cylinder; 326. Push rod;

[0030] 4. Limiting plate; 41. Limiting part. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0032] In addition, it should be noted that the terms "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element of the present invention must have a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] When an element is referred to as being “fixed to” or “disposed on” or “provided on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0034] Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; 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. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0035] Example

[0036] Please refer to Figure 1-4 As shown, this embodiment provides a new type of lifting device, including a first lifting arm 1 and a second lifting arm 2, wherein the first lifting arm 1 is provided with a first articulated seat 11 and a second articulated seat 12 at both ends, and one end of the second lifting arm 2 is hinged on the second articulated seat 12. The first articulated seat 11 is used to fix with external equipment, and the second articulated seat 12 realizes the rotation of the second lifting arm 2, so that the first lifting arm 1 and the second lifting arm 2 can realize 0-180° rotation on a horizontal plane, covering a larger lifting range, and having good flexibility.

[0037] In this embodiment, the first articulated seat 11 includes a first rotating shaft 111 and two mounting rings 112. One end of the first suspension arm 1 is fixed on the first rotating shaft 111, and the two ends of the first rotating shaft 111 are rotatably fixed on the inner ring surfaces of the two mounting rings 112 through bearings. Both sides of the mounting ring 112 are provided with outwardly extending fixing plates 113, and through holes 114 are provided on the fixing plates 113 for locking bolts or other fixings to try to fix the sling.

[0038] In this embodiment, the first boom 1 is a hollow boom with an internal hollow structure, which effectively reduces the weight of the first boom 1, facilitates the adjustment of the position of the second boom 2, and further improves the flexibility of the sling.

[0039] In this embodiment, the second articulated seat 12 includes a second rotating shaft 121 and two mounting plates 122, and the two mounting plates 122 are respectively fixed on both sides of the other end of the first boom 1. The ends of the two mounting plates 122 extend outward and protrude from the first boom 1, and the two ends of the second rotating shaft 121 are respectively rotatably fixed between the ends of the two mounting plates 122 through the rotating shaft. One end of the second boom 2 is fixed on the second rotating shaft 121, so that the second boom 2 can rotate relative to the first boom 1. In this embodiment, the first rotating shaft 111 and the second rotating shaft 121 are parallel to each other. Specifically, the first rotating shaft 111 and the second rotating shaft 121 are both vertically arranged, that is, the first boom 1 and the second boom 2 are flipped on a horizontal square. Similarly, the first rotating shaft 111 and the second rotating shaft 121 can be arranged horizontally, so that the first boom 1 and the second boom 2 are flipped in the vertical direction. According to different equipment use requirements, different extension directions of the first rotating shaft 111 and the second rotating shaft 121 are set, which has better practicality.

[0040] The second arm 2 is provided with a receiving cavity, and the bottom opening 211 of the receiving cavity faces downward. A first opening 212 is provided on the side of the receiving cavity close to the free end of the second arm 2, and a second opening 213 is provided on the side of the receiving cavity close to the second hinge seat 12. The size of the second opening 213 is larger than the first opening 212. An inclined portion 214 is provided on the side wall of the receiving cavity, and the inclined portion 214 is inclined inward from the first opening 212 side to the second opening 213 side. The second arm 2 is provided with the inclined portion 214, and the opening size of the first opening 212 is larger, so that the width of the free end of the second arm 2 is larger, and more sizes of hoisting bodies 3 can be installed, which has better practicality.

[0041] Please refer to Figure 3 and Figure 4 As shown, the new type of lifting device disclosed in this embodiment also includes a lifting body 3, and the lifting body 3 includes a lifting shell 31 and a lifting component 32 fixed in the lifting shell 31, and the lifting component 32 is used to lift the object. The lifting shell 31 passes through the first opening 212 and is embedded in the accommodating cavity. One side of the lifting shell 31 is provided with an inclined plate 311 corresponding to the inclined portion 214, and the inclined plate 311 is in contact with the inclined portion 214. The use of the inclined plate 311 and the inclined portion 214 can ensure the accuracy of the position of the lifting shell 31 during the initial installation process, and facilitate the installation of the lifting shell 31. Similarly, the side wall of the accommodating cavity provides limiting forces in different directions for the lifting shell 31, ensuring that the lifting body 3 has better stability during the lifting process.

[0042] In this embodiment, the hoisting assembly 32 includes a hoisting plate 321 and a hoisting drive roller 322 arranged on the hoisting plate 321. The hoisting plate 321 is fixed on the opening of the hoisting shell 31, and the hoisting drive roller 322 is located in the hoisting shell 31. The specific hoisting drive roller 322 is a rotating roller with a built-in drive motor. This structure is a prior art and is not described in detail in this embodiment. The hoisting drive roller 322 is installed with a hoisting rope (not shown in the accompanying drawings). The self-rotation of the hoisting drive roller 322 is used to adjust the height of the free end of the rope to achieve the hoisting of the external product. The hoisting plate 321 is fixed with a relatively arranged vertical plate 323, and the two ends of the hoisting drive roller 322 are respectively arranged on the two vertical plates 323 through a rotating shaft. The hoisting plate 321 is provided with a hoisting port 3211, which is located on one side of the hoisting drive roller 322, and the hoisting rope extends vertically downward through the hoisting port 3211.

[0043] In this embodiment, a push cylinder 325 and two oppositely arranged slide rails 324 are fixed on the hoisting plate 321. The two vertical plates 323 are slidably arranged on the two slide rails 324, respectively. In this embodiment, a slide groove 3241 is provided on the slide rail 324, and a slider 3231 protruding outward is provided at the bottom of the vertical plate 323, and the slider 3231 is embedded in the slide groove 3241. The slide groove 3241 limits the movement direction of the vertical plate 323 by limiting the slider 3231, so as to prevent the movement direction of the vertical plate 323 from being offset. The push cylinder 325 and the hoisting port 3211 are respectively located on both sides of the hoisting drive roller 322 circuit, and a push rod 326 is fixed to the driving end of the push cylinder 325, and the free end of the push rod 326 is fixedly connected to the vertical plate 323. In this embodiment, there are two push rods 326, and the two push rods 326 are respectively fixedly connected to the two vertical plates 323. The push cylinder 325 controls the movement of the vertical plate 323 on the slide rail 324 by controlling the extension and contraction of the push rod 326. Since the hoisting rope is wound around the hoisting drive roller 322 and overlapped with each other, it has a certain thickness. The push cylinder 325 is set to adjust the position between the hoisting drive roller 322 and the hoisting port 3211 in real time, effectively avoiding friction between the hoisting rope and the hoisting port 3211, and improving the service life of the hoisting rope. For example, in the process of putting the rope, the push cylinder 325 synchronously pushes the vertical plate 323 toward the hoisting port 3211, so that the distance between the hoisting drive roller 322 and the hoisting port 3211 is inversely proportional to the distance below the hoisting rope. That is, as the lowering distance of the hoisting rope increases, the push cylinder 325 pushes the hoisting drive roller 322 closer and closer to the hoisting port 3211, ensuring that the hoisting rope can maintain natural drooping during the lowering process. Avoid the distance difference between the top of the hoisting rope and the hoisting port 3211 in the vertical direction, so that the hoisting rope contacts the hoisting port 3211, causing the hoisting rope to wear faster during use, and the hoisting rope needs to be replaced frequently, which is costly. In the process of pulling up the hoisting rope, similarly, the push cylinder 325 drives the push rod 326 to contract, and the hoisting drive roller 322 is synchronously moved away from the hoisting port 3211, thereby ensuring that the hoisting rope always remains in a vertical state and avoiding friction between the hoisting rope and the hoisting port 3211.

[0044] In this embodiment, the limiting plates 4 are fixed on both sides of the second suspension arm 2, and the top of the limiting plate 4 is provided with a bending portion, which is bent toward the bottom opening 211 of the accommodating cavity and extends to the bottom of the bottom opening 211. The bending portion supports the bottom of the suspension plate 321 and limits the suspension body 3 at the bottom. Specifically, there is a gap between the bending portion and the suspension opening 3211 in the vertical direction to prevent the bending portion from blocking the suspension opening 3211 and affecting the suspension effect of the sling.

[0045] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A new type of sling, characterized in that: comprising a first boom and a second boom, The first boom is provided with a first hinge seat and a second hinge seat at both ends thereof, and one end of the second boom is hinged on the second hinge seat. A accommodating cavity is provided on the second suspension arm, and the bottom opening of the accommodating cavity faces downward. A first opening is provided on the side of the accommodating cavity close to the free end of the second suspension arm, and a second opening is provided on the side of the accommodating cavity close to the second hinged seat. The size of the second opening is larger than the first opening. An inclined portion is provided on the side wall of the accommodating cavity, and the inclined portion is inclined inward from the first opening side to the second opening side.

2. The novel sling according to claim 1 is characterized in that: Limiting plates are fixed on both sides of the second suspension arm, and a bending portion is provided on the top of the limiting plate. The bending portion is bent toward the bottom opening of the accommodating cavity and extends to below the bottom opening.

3. The novel sling according to claim 1 is characterized in that: The first articulated seat includes a first rotating shaft and two mounting rings, one end of the first suspension arm is fixed on the first rotating shaft, and both ends of the first rotating shaft are rotatably fixed on the inner ring surfaces of the two mounting rings through bearings. Fixing plates extending outward are arranged on both sides of the mounting ring.

4. The novel sling according to claim 3 is characterized in that: The second articulated seat includes a second rotating shaft and two mounting plates, the two mounting plates are respectively fixed on both sides of the other end of the first boom, the ends of the two mounting plates extend outward and protrude from the first boom, the two ends of the second rotating shaft are respectively rotatably fixed between the ends of the two mounting plates through the rotating shaft, and one end of the second boom is fixed on the second rotating shaft.

5. The novel lifting device according to claim 4 is characterized in that: The first rotating axis and the second rotating axis are parallel to each other.

6. The novel sling according to claim 1 is characterized in that: It also includes a hanging body, which includes a hanging shell and a hanging component fixed in the hanging shell. The hanging shell is embedded in the accommodating cavity through the first opening, and an inclined plate corresponding to the inclined portion is arranged on one side of the hanging shell, and the inclined plate is fitted with the inclined portion.

7. The novel sling according to claim 6 is characterized in that: The hoisting assembly includes a hoisting plate and a hoisting driving roller arranged on the hoisting plate, and the hoisting plate is fixed on the opening of the hoisting shell. The hoisting plate is fixed with oppositely arranged vertical plates, and the two ends of the hoisting drive roller are respectively arranged on the two vertical plates through a rotating shaft. The hoisting plate is provided with a hoisting opening, and the hoisting opening is located at one side of the hoisting drive roller.

8. The novel lifting device according to claim 7 is characterized in that: A pushing cylinder and two oppositely arranged slide rails are fixed on the lifting plate, and two vertical plates are slidably arranged on the two slide rails respectively. The pushing cylinder and the lifting port are respectively located on both sides of the lifting drive roller circuit. A pushing rod is fixed on the driving end of the pushing cylinder, and the free end of the pushing rod is fixedly connected to the vertical plate.

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