Hydraulic lifting platform with anti-unbalance load function

Abstract

The utility model discloses a hydraulic lifting platform with anti -eccentric load function, including base, the both sides of base rear part are equipped with guide rod, and guide rod passes through the rear part of support platform upwards, and the middle part of base is equipped with hydraulic assembly, and hydraulic assembly drives support platform to go up and down, hydraulic assembly includes cylinder body and piston rod, and the bottom of cylinder body is equipped with bottom plate, and cylinder body is fixed in base, and piston rod extends into cylinder body, and the top of piston rod is equipped with recess, and recess is equipped with ball head, and the top of recess is equipped with fixed ring, and fixed ring is used for limiting ball head in recess, and ball head top portion is fixedly connected with support platform bottom, the utility model discloses a hydraulic lifting platform with anti -eccentric load function adopts fixed ring and limits ball head in recess, when the center of gravity of support platform inclines eccentric load due to the change of goods position, ball head can rotate in recess and rotate, thereby avoiding the one -way inclination of piston rod and causing the inner wall of cylinder body to be pulled and hurt, prolongs the service life of oil cylinder, guarantees the normal work of hydraulic lifting platform.

Description

Technical Field

[0001] This utility model relates to hydraulic technology, specifically a hydraulic lifting platform with anti-eccentric load function. Background Technology

[0002] A hydraulic lifting platform is a lifting device that raises or lowers people or goods to a certain height. The lifting power of a hydraulic lifting platform is mainly provided by hydraulic cylinders.

[0003] Hydraulic cylinders are widely used industrial automation devices. They are hydraulic actuators that convert hydraulic energy into mechanical energy, performing linear reciprocating motion (or oscillating motion). They are simple in structure and reliable in operation. When used to achieve reciprocating motion, they eliminate the need for a speed reduction device and have no transmission backlash, resulting in smooth movement. Therefore, they are widely used in the hydraulic systems of various machines.

[0004] Currently, during the lifting process of hydraulic cylinders, because the top of the piston rod is fixed to the support platform while the position of the load on the support platform is random, the center of gravity of the support platform will deviate from the fixed position of the piston rod, resulting in an off-center load. This causes the piston rod of the hydraulic cylinder to tilt forcibly, which in severe cases can damage the cylinder wall, leading to hydraulic oil leakage and shortening the service life of the hydraulic cylinder. Utility Model Content

[0005] To address the shortcomings of the existing technology, this utility model provides a hydraulic lifting platform with anti-eccentric load function, which can effectively prevent the cylinder piston rod from being overloaded and ensure the normal operation of the hydraulic lifting platform.

[0006] To achieve the above technical objectives, this utility model adopts the following technical solution: a hydraulic lifting platform with anti-eccentric load function, including a base, guide rods on both sides of the rear of the base, the guide rods passing upward through the rear of the support platform, a hydraulic assembly in the middle of the base, the hydraulic assembly driving the support platform to lift; the hydraulic assembly includes a cylinder and a piston rod, a base plate at the bottom of the cylinder, the cylinder being fixed to the base, the piston rod extending into the cylinder, a groove at the top of the piston rod, a ball head in the groove, a fixing ring at the top of the groove, the fixing ring for confining the ball head in the groove, and the top of the ball head being fixedly connected to the bottom of the support platform.

[0007] Preferably, the guide rod has a top rod at its top end.

[0008] Preferably, the top of the ball head is provided with a fixing block, the fixing block is inserted and fixed to the mounting flange, and the mounting flange is fixed to the bottom of the support platform.

[0009] Preferably, the fixing block is circular, and the diameter of the fixing block is smaller than the inner diameter of the fixing ring.

[0010] Preferably, the inner diameter of the fixing ring is smaller than the diameter of the ball head.

[0011] Preferably, the base is equipped with a hydraulic pump and an oil tank, and the hydraulic pump is connected to the oil tank and the cylinder.

[0012] Preferably, the piston rod has an oil chamber at its bottom and the base plate has an oil hole, the oil hole connecting the hydraulic pump and the oil chamber.

[0013] Preferably, the top of the cylinder is provided with an oil seal, which is sleeved on the outer wall of the piston rod.

[0014] In summary, this utility model achieves the following technical effects:

[0015] This utility model discloses a hydraulic lifting platform with anti-eccentric load function. It uses a fixing ring to confine the ball head in a groove. When the center of gravity of the support platform tilts and is eccentrically loaded due to changes in the position of the goods, the ball head can rotate within the groove, thereby avoiding unidirectional tilting of the piston rod and causing damage to the inner wall of the cylinder, extending the service life of the cylinder, and ensuring the normal operation of the hydraulic lifting platform. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of the hydraulic lifting platform with anti-eccentric load function of this utility model;

[0017] Figure 2 This is a schematic diagram of the hydraulic cylinder of the hydraulic lifting platform with anti-eccentric load function of this utility model.

[0018] The following are the markings on the attached drawings: 1. Base; 2. Support platform; 3. Guide rod; 4. Top rod; 5. Hydraulic pump; 6. Cylinder body; 7. Piston rod; 8. Ball head; 9. Mounting flange; 10. Retaining ring; 11. Retaining block; 12. Oil seal; 13. Base plate. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings.

[0020] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0025] Example 1:

[0026] like Figure 1As shown in Figure 2, a hydraulic lifting platform with anti-eccentric load function includes a base 1. Guide rods 3 are provided on both sides of the rear of the base 1. The guide rods 3 pass upward through the rear of the support platform 2. A hydraulic assembly is provided in the middle of the base 1. The hydraulic assembly drives the support platform 2 to lift. The hydraulic assembly includes a cylinder 6 and a piston rod 7. A base plate 13 is provided at the bottom of the cylinder 6. The cylinder 6 is fixed to the base 1. The piston rod 7 extends into the cylinder 6. A groove is provided at the top of the piston rod 7. A ball head 8 is provided in the groove. A fixing ring 10 is provided at the top of the groove. The fixing ring 10 is used to limit the ball head 8 in the groove. The top of the ball head 8 is fixedly connected to the bottom of the support platform 2. The bottom end of the piston rod 7 fits against the inner wall of the cylinder 6. Moreover, the setting of the ball head 8 and the groove can prevent the piston rod 7 from forcibly scraping against the inner wall of the cylinder 6 even when the support platform 2 is tilted in all directions, thereby avoiding damage to the inner wall of the cylinder 6.

[0027] The hydraulic lifting platform with anti-eccentric load function in this embodiment uses a fixing ring 10 to confine the ball head 8 in a groove. When the center of gravity of the support platform 2 tilts and is eccentrically loaded due to the change in the position of the goods, the ball head 8 can rotate in the groove, thereby avoiding the piston rod 7 tilting in one direction and causing the inner wall of the cylinder 6 to be scratched, extending the service life of the oil cylinder and ensuring the normal operation of the hydraulic lifting platform.

[0028] The top of the guide rod 3 is provided with a top rod 4; the top rod 4 can prevent the support platform 2 from being raised too much and detaching from the guide rod 3.

[0029] The ball head 8 is provided with a fixing block 11 at its top. The fixing block 11 is inserted and fixed to the mounting flange 9. The mounting flange 9 is fixed to the bottom of the support platform 2. The fixing block 11 is provided to facilitate the installation of the ball head 8 and its fixation to the mounting flange 9.

[0030] The fixing block 11 is circular, and the diameter of the fixing block 11 is smaller than the inner diameter of the fixing ring 10.

[0031] The inner diameter of the fixing ring 10 is smaller than the diameter of the ball head 8.

[0032] The base 1 is equipped with a hydraulic pump 5 and an oil tank. The hydraulic pump 5 is connected to the oil tank and the cylinder 6. The bottom of the piston rod 7 is provided with an oil chamber. The base plate 13 is provided with an oil hole. The oil hole is connected to the hydraulic pump 5 and the oil chamber. The hydraulic pump 5 is connected to the oil hole and the oil chamber through a hydraulic control check valve to realize the lifting function of the support platform 2.

[0033] The top of the cylinder 6 is provided with an oil seal 12, which is sleeved on the outer wall of the piston rod 7.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A hydraulic lifting platform with anti-eccentric load function, characterized in that, The base includes a base with guide rods on both sides of its rear end. The guide rods pass upward through the rear of the support platform. A hydraulic assembly is located in the middle of the base, and the hydraulic assembly drives the support platform to rise and fall. The hydraulic assembly includes a cylinder and a piston rod. The bottom of the cylinder is provided with a base plate. The cylinder is fixed to the base. The piston rod extends into the cylinder. The top of the piston rod is provided with a groove. The groove is provided with a ball head. The top of the groove is provided with a fixing ring. The fixing ring is used to limit the ball head in the groove. The top of the ball head is fixedly connected to the bottom of the support platform.

2. A hydraulic lifting platform with anti-eccentric load function according to claim 1, characterized in that, The top of the guide rod is provided with a top rod.

3. A hydraulic lifting platform with anti-eccentric load function according to claim 1, characterized in that, The ball head is provided with a fixing block at the top, the fixing block is inserted and fixed to the mounting flange, and the mounting flange is fixed to the bottom of the support platform.

4. A hydraulic lifting platform with anti-eccentric load function according to claim 3, characterized in that, The fixing block is circular, and its diameter is smaller than the inner diameter of the fixing ring.

5. A hydraulic lifting platform with anti-eccentric load function according to claim 1, characterized in that, The inner diameter of the fixing ring is smaller than the diameter of the ball head.

6. A hydraulic lifting platform with anti-eccentric load function according to claim 1, characterized in that, The base is equipped with a hydraulic pump and an oil tank, and the hydraulic pump is connected to the oil tank and the cylinder.

7. A hydraulic lifting platform with anti-eccentric load function according to claim 6, characterized in that, The piston rod has an oil chamber at its bottom, and the base plate has an oil hole that connects the hydraulic pump to the oil chamber.

8. A hydraulic lifting platform with anti-eccentric load function according to claim 1, characterized in that, The cylinder body is provided with an oil seal at the top, and the oil seal is sleeved on the outer wall of the piston rod.

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