A box hoisting balance adjustment mechanism

Abstract

The present invention relates to the technical field of cargo box lifting equipment, and discloses a box lifting balance adjustment mechanism, including two balance arms symmetrically installed on both sides of the box, the balance arms including an upper arm and a lower arm, the upper arms are respectively provided with a first connecting portion and a second connecting portion, connecting pieces are provided between the first connecting portion and the box, and between the second connecting portion and the box, a hinge position is provided on the upper arm between the first connecting portion and the second connecting portion, the hinge position is respectively hinged to the side wall of the box and a lifting arm for hanging the box, and a driving device for driving the balance arm to rotate along the hinge position is provided between the lower arm and the lifting arm; a box lifting balance adjustment mechanism provided by the present invention can ensure the smooth lifting of the cargo box by being installed on the cargo box, thereby improving the operating efficiency of cargo loading and unloading.

Description

Technical Field

[0001] The invention relates to the technical field of cargo box hoisting equipment, and in particular to a box hoisting balance adjustment mechanism. Background Art

[0002] In the process of lifting a cargo box, if the weight of the goods in the cargo box is unevenly distributed, the use of simple wire rope lifting will cause the cargo box to tilt. Since the cargo box itself is large in size and heavy in weight, the use of a simple lifting method cannot well control the stability of the cargo box lifting, which will pose a safety hazard. Therefore, how to solve the current traditional problem of stable lifting of large cargo boxes has become an urgent problem to be solved. Summary of the invention

[0003] In view of the problems existing in the above-mentioned prior art, the present invention provides a box hoisting balance adjustment mechanism, which is installed on the cargo box to ensure the smooth hoisting of the cargo box and improve the operating efficiency of cargo loading and unloading.

[0004] The technical solution adopted by the present invention is:

[0005] A box hoisting balance adjustment mechanism comprises two balance arms symmetrically installed on both sides of the box, the balance arm comprises an upper arm and a lower arm, the upper arm is respectively provided with a first connecting portion and a second connecting portion, connecting parts are provided between the first connecting portion and the box, and between the second connecting portion and the box, a hinge position is provided on the upper arm between the first connecting portion and the second connecting portion, the hinge position is respectively hinged to the side wall of the box and a hoisting arm for hanging the box, and a driving device for driving the balance arm to rotate along the hinge position is provided between the lower arm and the hoisting arm.

[0006] The traditional lifting arm is directly connected to the box body, which cannot control the deflection state of the box body, affecting the stability of the lifting, posing a safety hazard, and affecting the working efficiency of the lifting. In this technical solution, two balancing arms are symmetrically installed on both sides of the box body. The balancing arms on both sides cooperate with the driving device to adjust the deflection state of the box body. When the box body is lifted by the lifting arm, if the box body deflects, the driving device can drive the balancing arm to rotate along the hinge position. During the rotation of the balancing arm, since connecting parts are provided between the first connecting part and the box body and between the second connecting part and the box body, the driving of the box body is also realized as a whole. That is, the driving device can adjust the position of the box body when the box body is tilted, which can ensure the stable lifting of the box body and improve the efficiency of cargo loading and unloading.

[0007] Specifically, if the box body tilts to the left, the driving device drives the balancing arm to rotate clockwise until the box body is adjusted to a horizontal state. If the box body tilts to the right, the driving device drives the balancing arm to rotate counterclockwise until the box body is adjusted to a horizontal state.

[0008] Each balance adjustment structure can act independently, and two sets of balance adjustment structures can be used for combined lifting or action to lift boxes and goods on the ground, platform, or other transfer vehicles.

[0009] The balance arms are combined into a truss structure, which can enhance the overall strength, reduce the material thickness of the balance arms, and reduce energy consumption through lightweight design.

[0010] When it is necessary to hoist multiple boxes, multiple sets of balance adjustment structures can be set up.

[0011] Furthermore, the connecting members are respectively a left pull rope and a right pull rope, the two ends of the left pull rope are respectively connected to the first connecting portion and the left side of the box side wall, and the two ends of the right pull rope are respectively connected to the second connecting portion and the right side of the box side wall.

[0012] Furthermore, in order to ensure the service life of the pull rope, the left pull rope and the right pull rope are both steel wire ropes.

[0013] Furthermore, the connecting parts are a left latch and a right latch, and the left latch and the right latch are respectively arranged at the first connecting part and the second connecting part, and the left latch and the right latch are respectively connected to the pin holes arranged at corresponding positions on the box body.

[0014] Specifically, the left side latch and the right side latch may adopt a telescopic structure, and corresponding driving devices are provided to drive the left side latch and the right side latch to extend and retract. It is easy to think of driving devices such as electric push rods, cylinders, and hydraulic cylinders to realize the control of the telescopic state of the left side latch and the right side latch. Therefore, there are no excessive restrictions.

[0015] The left and right latches are telescopically arranged. When the upper end of the lifting arm is aligned with the corresponding position of the box, the left and right latches are extended to achieve docking with the box. The connection between the lifting arm and the box is achieved through the balance arm, and then the balance of the box during lifting is controlled by the driving device.

[0016] Furthermore, in order to ensure the structural strength of the balancing arm, the balancing arm is an integrated structure, the upper arm is a horizontal extension arm, and the lower arm extends downward from the horizontal extension arm.

[0017] Furthermore, in order to realize driving of the state of the balancing arm, the driving device includes an electric push rod, a hydraulic cylinder and a pneumatic cylinder.

[0018] Furthermore, the electric push rod is installed between the lower end of the lower arm and the hoisting arm. The electric push rod has high control accuracy and is easy to control, so the electric push rod is preferably selected to realize the driving of the balance arm.

[0019] Furthermore, it also includes a displacement sensor or an angle sensor arranged on the balance arm.

[0020] Specifically, the displacement sensor or angle sensor is arranged on the balance arm. At the same time, each swing arm of the lifting arm is also provided with a displacement sensor or an angle sensor. The displacement sensor or the angle sensor provides real-time feedback information to coordinate and drive the lifting arm and the balance arm to ensure the stability of the box lifting.

[0021] In summary, this technical solution can achieve smooth lifting and automatic alignment of the center of gravity without shaking when the box is tilted due to left or right unbalanced loading, solving the problem of unsafe lifting due to unbalanced cargo weight, and also improving the efficiency of cargo loading and unloading.

[0022] Furthermore, the balance arm is installed at a middle position of the upper ends of the left and right side walls of the box body.

[0023] Furthermore, the hinged position is hinged to the side wall of the box and the hanging arm for hanging the box through a pin shaft.

[0024] It should be noted that the pin and the box are designed to be detachable. When the upper end of the lifting arm is aligned with the corresponding position of the box, the pin will dock with the corresponding position of the box to achieve the hanging connection between the pin and the box. The pin can also have the function of extending and retracting like the left and right latches. It will be extended when hanging and retracted after the box is placed.

[0025] The beneficial effects of the present invention are as follows: the traditional lifting arm is directly connected to the box body, and cannot control the deflection state of the box body, which affects the stability of the lifting, has potential safety hazards, and affects the working efficiency of the lifting. In this technical solution, two balancing arms are symmetrically installed on both sides of the box body, and the balancing arms on both sides cooperate with the driving device to adjust the deflection state of the box body. When the box body is lifted by the lifting arm, if the box body deflects, the balancing arm can be driven by the driving device to rotate along the hinge position. During the rotation of the balancing arm, since connecting parts are provided between the first connecting part and the box body and between the second connecting part and the box body, the driving of the box body is also realized as a whole, that is, the driving device can adjust the position state of the box body when the box body is tilted, which can ensure the stable lifting of the box body and improve the efficiency of cargo loading and unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of a state in which the connecting member of the present invention is a left-side pull rope and a right-side pull rope;

[0027] Figure 2 It is a structural schematic diagram of a state 2 in which the connecting member of the present invention is a left-side pull rope and a right-side pull rope;

[0028] Figure 3is a structural schematic diagram of state three in which the connecting member of the present invention is a left-side pull rope and a right-side pull rope;

[0029] Figure 4 It is a schematic structural diagram of a connecting member of the present invention comprising a left latch and a right latch.

[0030] In the figure: box body 1; balance arm 2; upper arm 2.1; lower arm 2.2; left pull rope 3; right pull rope 4; first connection part 5; hinged position 6; second connection part 7; lifting arm 8; drive device 9; displacement sensor 10; left latch 11; right latch 12. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0034] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0035] Embodiment 1:

[0036] like Figure 1-Figure 4 As shown, this embodiment provides a box hoisting balance adjustment mechanism, including two balance arms 2 symmetrically installed on both sides of the box 1, the balance arm 2 is installed in the middle position of the upper ends of the left and right side walls of the box 1, the balance arm 2 includes an upper arm 2.1 and a lower arm 2.2, the upper arm 2.1 is respectively provided with a first connecting portion 5 and a second connecting portion 7, connecting parts are provided between the first connecting portion 5 and the box 1, and between the second connecting portion 7 and the box 1, a hinge position 6 is provided on the upper arm 2.1 between the first connecting portion 5 and the second connecting portion 7, the hinge position 6 is respectively hinged to the side wall of the box 1 and the hoisting arm 8 for hanging the box 1, and a driving device 9 for driving the balance arm 2 to rotate along the hinge position 6 is provided between the lower arm 2.2 and the hoisting arm 8.

[0037] The traditional lifting arm 8 is directly connected to the box 1, and cannot control the deflection state of the box 1, which affects the stability of the lifting, has safety hazards, and affects the working efficiency of the lifting. In this technical solution, two balancing arms 2 are symmetrically installed on both sides of the box 1. The balancing arms 2 on both sides cooperate with the driving device 9 to adjust the deflection state of the box 1. When the box 1 is lifted by the lifting arm 8, if the box 1 deflects, the balancing arm 2 can be driven by the driving device 9 to rotate along the hinge 6. During the rotation of the balancing arm 2, since there are connecting parts between the first connecting part 5 and the box 1 and between the second connecting part 7 and the box 1, the driving of the box 1 is also realized as a whole, that is, the driving device 9 can adjust the position of the box 1 when the box 1 is tilted, which can ensure the stable lifting of the box 1 and improve the efficiency of cargo loading and unloading.

[0038] Specifically, when the box 1 tilts to the left, the driving device 9 drives the balancing arm 2 to rotate clockwise until the box 1 is adjusted to a horizontal state. When the box 1 tilts to the right, the driving device 9 drives the balancing arm 2 to rotate counterclockwise until the box 1 is adjusted to a horizontal state.

[0039] Each balance adjustment structure can act independently, and two sets of balance adjustment structures can be used for combined lifting or action to lift the box 1 and goods on the ground, platform, or other transfer vehicles.

[0040] The balance arm 2 is combined into a truss structure, which can enhance the overall strength, reduce the material thickness of the balance arm 2, and reduce energy consumption through lightweight design.

[0041] When it is necessary to hoist multiple boxes 1, multiple sets of balance adjustment structures can be set.

[0042] Embodiment 2:

[0043] This embodiment is optimized based on the above-mentioned embodiment 1.

[0044] The connecting parts are respectively a left pull rope 3 and a right pull rope 4, the two ends of the left pull rope 3 are respectively connected to the first connecting part 5 and the left side of the side wall of the box body 1, and the two ends of the right pull rope 4 are respectively connected to the second connecting part 7 and the right side of the side wall of the box body 1. In order to ensure the service life of the pull rope, the left pull rope 3 and the right pull rope 4 are both steel wire ropes.

[0045] Embodiment 3:

[0046] This embodiment is optimized based on the above-mentioned embodiment 1.

[0047] The connecting parts are a left latch and a right latch. The left latch 11 and the right latch 12 are respectively arranged on the first connecting part 5 and the second connecting part 7. The left latch 11 and the right latch 12 are respectively connected to the pin holes arranged at corresponding positions on the box body 1.

[0048] Specifically, the left side latch 11 and the right side latch 12 can adopt a telescopic structure, and a corresponding driving device 9 is set to drive the left side latch 11 and the right side latch 12 to extend and retract. It is easy to think of the driving device 9 such as an electric push rod, a cylinder, a hydraulic cylinder, etc. to realize the control of the telescopic state of the left side latch 11 and the right side latch 12. Therefore, there are no excessive restrictions.

[0049] The left side latch 11 and the right side latch 12 are telescopically arranged. When the upper end of the lifting arm 8 is aligned with the corresponding position of the box body 1, the left side latch 11 and the right side latch 12 are extended to achieve docking with the box body 1. The lifting arm 8 is connected to the box body 1 through the balance arm 2, and then the balance of the box body 1 during the lifting process is controlled by the driving device 9.

[0050] Embodiment 4:

[0051] This embodiment is optimized based on any one of the above embodiments 1-3.

[0052] In order to ensure the structural strength of the balancing arm 2, the balancing arm 2 is an integrated structure, the upper arm 2.1 is a horizontal extension arm, and the lower arm 2.2 extends downward from the horizontal extension arm.

[0053] Embodiment 5:

[0054] This embodiment is optimized based on the above-mentioned embodiment 4.

[0055] In order to realize the driving of the state of the balance arm 2, the driving device 9 includes an electric push rod, a hydraulic cylinder and a pneumatic cylinder. The electric push rod is installed between the lower end of the lower arm 2.2 and the hoisting arm 8. The electric push rod has high control accuracy and is easy to control, so the electric push rod is preferably selected to realize the driving of the balance arm 2.

[0056] Embodiment 6:

[0057] This embodiment is optimized based on the above-mentioned embodiment 1.

[0058] It also includes a displacement sensor 10 or an angle sensor arranged on the balance arm 2.

[0059] Specifically, the displacement sensor 10 or the angle sensor is arranged on the balance arm 2. At the same time, each swing arm of the lifting arm 8 is also provided with a displacement sensor 10 or an angle sensor. The displacement sensor 10 or the angle sensor provides real-time feedback information to coordinate and drive the lifting arm 8 and the balance arm 2, thereby ensuring the stability of the lifting of the box 1.

[0060] In summary, this technical solution can achieve smooth lifting and automatic center of gravity alignment of the box body 1 without shaking when the box body 1 is tilted due to left or right unbalanced loading, thus solving the problem of unsafe lifting due to unbalanced cargo weight. At the same time, it also improves the efficiency of cargo loading and unloading.

[0061] Embodiment 7:

[0062] This embodiment is optimized based on the above-mentioned embodiment 1.

[0063] The hinged portion 6 is hinged to the side wall of the box body 1 and a hanging arm 8 for hanging the box body 1 through a pin shaft.

[0064] It should be noted that the pin shaft and the box body 1 are designed to be detachable. When the upper end of the lifting arm 8 is aligned with the corresponding position of the box body 1, the pin shaft is docked with the corresponding position of the box body 1 to realize the hanging of the pin shaft and the box body 1. The pin shaft can also have the function of extending and retracting like the left-side latch 11 and the right-side latch 12. It is extended when hanging and retracted after the box body 1 is placed.

[0065] The present invention is not limited to the above-mentioned optional implementation modes. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that fall within the scope defined by the claims of the present invention fall within the protection scope of the present invention.

Claims

1. A box hoisting balance adjustment mechanism, characterized in that: It comprises two balancing arms symmetrically installed on both sides of the box body, the balancing arms comprising an upper arm and a lower arm, the upper arms are respectively provided with a first connecting portion and a second connecting portion, connecting pieces are provided between the first connecting portion and the box body, and between the second connecting portion and the box body, a hinged position is provided on the upper arm between the first connecting portion and the second connecting portion, the hinged position is respectively hinged with the side wall of the box body and a hanging arm for hanging the box body, and a driving device for driving the balancing arm to rotate along the hinged position is provided between the lower arm and the hanging arm; The connecting members are respectively a left pull rope and a right pull rope, the two ends of the left pull rope are respectively connected to the first connecting portion and the left side of the box side wall, and the two ends of the right pull rope are respectively connected to the second connecting portion and the right side of the box side wall; Alternatively, the connecting members are a left latch and a right latch, respectively, the left latch and the right latch are respectively arranged at the first connecting portion and the second connecting portion, and the left latch and the right latch are respectively connected to the pin holes arranged at corresponding positions on the box body; It also includes a displacement sensor or an angle sensor arranged on the balance arm.

2. A box hoisting balance adjustment mechanism according to claim 1, characterized in that: The left side pull rope and the right side pull rope are both steel wire ropes.

3. A box hoisting balance adjustment mechanism according to claim 1 or 2, characterized in that: The balancing arm is an integrated structure, the upper arm is a horizontal extension arm, and the lower arm extends downward from the horizontal extension arm.

4. A box hoisting balance adjustment mechanism according to claim 3, characterized in that: The driving device includes an electric push rod, a hydraulic cylinder or a pneumatic cylinder.

5. A box hoisting balance adjustment mechanism according to claim 4, characterized in that: The electric push rod is installed between the lower end of the lower arm and the hoisting arm.

6. A box hoisting balance adjustment mechanism according to claim 1, characterized in that: The balance arm is installed at the middle position of the upper ends of the left and right side walls of the box body.

7. A box hoisting balance adjustment mechanism according to claim 1, characterized in that: The hinged position is hinged to the side wall of the box body and the hanging arm for hanging the box body through the pin shaft.

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