CN105000501B - A kind of lowering or hoisting gear of fluid pressure type - Google Patents

Abstract

The present invention provides the lowering or hoisting gear of a kind of fluid pressure type, including base, base is arranged with universal wheel, being provided with multistage hydraulic push rod on base, the left surface of multistage hydraulic push rod is movably connected with the base, and the top of multistage hydraulic push rod is provided with platform, the left surface of multistage hydraulic push rod is connected with one end of hydraulic pressure support bar, the hydraulic pressure support bar other end is connected with base, and hydraulic pressure support bar and multistage hydraulic push rod are connected with distributing valve, and distributing valve is connected with hydraulic press.Hydraulic mandril can stretch and rotate, and when base moves, can avoid the barrier in all directions, be moved easily.

Description

A hydraulic lifting device

technical field

The invention relates to the field of lifting devices that are easy to move, in particular to a hydraulic lifting device.

Background technique

The existing lifting device takes up a lot of space and has a relatively fixed structure. When an obstacle is encountered, it is easy to be unavoidable, which greatly affects the use efficiency.

Contents of the invention

The technical problem to be solved by the present invention is to provide a hydraulic lifting device to solve the problem that the lifting device is not easy to move.

The present invention is realized in the following way: a hydraulic lifting device includes a base, universal wheels are arranged under the base, multi-stage hydraulic ejector rods are arranged on the base, the left side of the multi-stage hydraulic ejector rods is movably connected with the base, There is a platform on the top of the multi-stage hydraulic ejector rod, one end of the hydraulic support rod is movably connected to the left side of the multi-stage hydraulic ejector rod, the other end of the hydraulic support rod is connected to the base, and the hydraulic support rod and the multi-stage hydraulic ejector rod are connected to the distribution valve. Connection, the distribution valve is connected with the hydraulic press.

Further, the top of each hydraulic jack of the multi-stage hydraulic jack is connected to a right-angled ladder, and the right-angled ladders connected to the top of each hydraulic jack are nested with each other.

Further, the base is also provided with a foldable support device, and the base is provided with a groove for accommodating the support device.

Further, the platform is a flat plate perpendicular to the multi-stage hydraulic jacks.

Further, foldable railings are provided on four sides of the flat panel.

Further, a support block is provided on the left side of the hydraulic support rod, the support block is connected to the base, and the support block is used to support the multi-stage hydraulic jack rod inclined to the left.

Further, a self-locking mechanism is also included, and the self-locking mechanism is arranged between adjacent ladders to prevent the ladders from shrinking and moving.

Further, the base is also provided with a locking mechanism, the locking mechanism is arranged on the right side of the multi-stage hydraulic jack, and the locking mechanism is used to lock the relative position of the hydraulic jack and the base.

Further, the distribution valve is an electronic distribution valve.

Further, it also includes a wireless controller and a wireless receiver, the wireless receiver is connected to the electronic distribution valve, the wireless controller is used to send a control signal, and the wireless receiver is used to control the electronic distribution valve after receiving the control signal.

The invention has the following advantages: the hydraulic ejector rod can be stretched and rotated, and when the base moves, it can avoid obstacles in various directions and is convenient to move.

Description of drawings

Fig. 1 is the structural representation when the present invention is accommodated;

Fig. 2 is the structural representation when the present invention is upright;

Fig. 3 is a schematic diagram of the structure of the hydraulic ejector rod of the present invention when it is jacked up.

detailed description

In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

Please refer to Fig. 1 to Fig. 3, the present invention provides a kind of hydraulic lifting device, comprises base 1, and universal wheel 2 is arranged under the base, and multi-stage hydraulic ejector pin 3 is arranged on base 1, and multi-stage hydraulic ejector pin consists of Composed of multiple hydraulic jacks nested with each other, the extension length of the hydraulic jack can be greatly increased. The left side of the multi-stage hydraulic jack 3 is flexibly connected with the base, and can be flexibly connected by bolts, so that the hydraulic jack can rotate around the movable connection point. The top of the multi-stage hydraulic mandrel is provided with a platform 4, which is used for standing people. One end of the hydraulic support rod 5 is movably connected to the left side of the multi-stage hydraulic mandrel. Preferably, the movable connection point is set above the movable connection point with the base, which is more reasonable. The other end of the hydraulic support rod is connected to the base, the hydraulic support rod and the multi-stage hydraulic ejector rod are connected to the distribution valve, and the distribution valve is connected to the hydraulic press.

When the present invention is in use, firstly the hydraulic mandrel can be shortened, and can pass through places with lower heights when moving. Where the height needs to be further lowered, the hydraulic support rod can be used to tilt the hydraulic jack rod, as shown in Figure 1, so as to lower the height again, and at the same time, the highest point of the hydraulic jack rod will also be offset directly above the base, and can pass through the top of the road There is a place in the middle where the two sides are not covered, that is, the highest point of the hydraulic mandrel passes through the places where the two sides are not covered, so that the lifting device of the present invention is easy to move. The setting of the hydraulic support rod reduces the labor intensity of rotating the hydraulic ejector rod. However, when the present invention needs to be raised for use, as shown in Figure 3, after the hydraulic support rod can be used to vertically set the hydraulic ejector rod, the distribution valve can be controlled to allow the liquid of the hydraulic machine to drive the hydraulic ejector rod upwards, so that the platform can rise. People can ascend with the platform, thereby achieving elevation.

In order to make it easier for people to get up and down from the platform, a ladder can be set on the platform, and a rope ladder can be considered. Of course, it is more practical to set up a rigid ladder, but how to stretch the rigid ladder is a problem. In order to solve this problem, the present invention proposes that a right-angled ladder 6 is connected to the top of each hydraulic jack of the multi-stage hydraulic jack, and the right-angled ladders connected to the top of each hydraulic jack are nested. . The specific nesting process can be that the right-angled ladder connected to the bottom hydraulic ram is the closest to the hydraulic ram, and then the ladder connected to the second lower hydraulic ram leans against the innermost ladder, so that they are close to each other, which is convenient When the hydraulic jack retracts, the ladder also retracts. When the hydraulic mandrel is stretched and lengthened, the ladders are also stretched and lengthened, and they are close together for easy climbing. The preferred ladder is arranged on the right side of the hydraulic mandrel so as not to affect the work of the hydraulic support mandrel on the left side.

When the hydraulic mandrel is extended, the distribution valve can be closed to maintain the current position of the hydraulic mandrel and avoid the hydraulic pressure from shrinking back down. When the dispensing valve fails, the hydraulic ejector may fall back automatically, which may cause injury to personnel on the platform. In some embodiments, a self-locking mechanism is provided between adjacent ladders to prevent the ladders from shrinking and moving. Because it is difficult to arrange a self-locking mechanism on the hydraulic ejector rod, it is also difficult to control the self-locking mechanism. The self-locking mechanism can be a ratchet mechanism, which allows the ladder to be extended but not retracted, so as to prevent the ladder from falling back, thereby avoiding the shrinkage of the hydraulic mandrel. When contraction is required, only a person needs to climb onto the ladder and control the self-locking mechanism to fail, and the hydraulic ejector rod can be contracted.

Since there are universal wheels under the base, sliding may occur during high-altitude operations, which may cause personal injury. In some embodiments, the base is also provided with a foldable support device 7, and the base is provided with Recess 8 that accommodates said support means. The base can be lifted by the supporting device so that the wheels leave the ground, and the supporting device directly supports the base to avoid sliding of the base, while the supporting device also increases the supporting area to prevent the lifting device from tilting and falling down. The groove 8 allows the supporting device to be stored on the base, so that the volume of the lifting device is smaller when moving, and can be unfolded when supporting, which increases the contact area between the base and the ground, making the base more stable.

The present invention does not limit the shape of the platform, which can be a frame, and people can stand in the frame. In some embodiments, the platform is a flat plate perpendicular to the side of the escalator, which has a simple structure and is convenient for production.

In order to increase safety and avoid increasing the height of the device, foldable railings 9 are provided on the four sides of the flat panel. When moving this device, railing 9 can be put down, as shown in Figure 1, has avoided increasing the height of this device, has guaranteed the passability of this device. When in use, as shown in Figure 2-3, railings can be erected to form a fence to increase safety.

In some cases, the present invention can tilt the hydraulic mandrel to the left and then extend it, so that it can reach the upper left of the base, which is applicable to the situation when the device cannot be parked at the left side of the base. At this time, people standing on the platform will form a greater pressure on the hydraulic support rod, which requires a larger hydraulic support rod to support it, which will increase the cost. In some embodiments, a support block 10 may be provided on the left side of the hydraulic support rod, the support block is connected to the base, and the support block is used to support the multi-stage hydraulic jack rod inclined to the left. By supporting the column hydraulic ejector rod through the support block, there is no need for a larger hydraulic support rod, as long as the support rod can rotate the hydraulic ejector rod.

In order to prevent the hydraulic ejector rod from shaking left and right during work, the base is also provided with a locking mechanism 11, which is arranged on the right side of the multi-stage hydraulic ejector rod, and the locking mechanism is used to lock the relative position of the hydraulic ejector rod and the base. The locking mechanism is used for fixing, and there are many ways to realize it. A supporting piece can be used in the present invention, as shown in Figure 1-3, the two ends of the supporting piece have through holes, the base is provided with through holes, the right side of the multi-stage hydraulic ejector is provided with through holes, one of the supporting pieces The through hole and the through hole of the base are flexibly connected by bolts. When the hydraulic mandrel moves in place and needs to be locked, after the other support plate is connected with the through hole of the hydraulic mandrel by bolts, the hydraulic mandrel is fixed and will not rotate.

The dispensing valves of the present invention may be manual or preferably electronic dispensing valves. The switch of the electronic distribution valve can be set in multiple places for easy control. The distribution valve can realize the control of the hydraulic ejector rod and the hydraulic support rod.

In some embodiments, in order to facilitate the remote control of the lifting device, a wireless controller and a wireless receiver are also included, the wireless receiver is connected with the electronic distribution valve, the wireless controller is used to send control signals, and the wireless receiver is used for Control the electronic dispensing valve after receiving the control signal.

The above description is only an embodiment of the present invention, and does not limit the scope of patent protection of the present invention. Any equivalent structure or equivalent process transformation made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related All technical fields are equally included in the scope of patent protection of the present invention.

Claims (8)

1. A hydraulic lifting device, characterized in that it includes a base, universal wheels are arranged under the base, multi-stage hydraulic ejector rods are arranged on the base, the left side of the multi-stage hydraulic ejector rods is movably connected with the base, and multiple There is a platform on the top of the multi-stage hydraulic ejector rod, one end of the hydraulic support rod is movably connected to the left side of the multi-stage hydraulic ejector rod, the other end of the hydraulic support rod is connected to the base, and the hydraulic support rod and the multi-stage hydraulic ejector rod are connected to the distribution valve. , the distributing valve is connected to the hydraulic press, and the top of each hydraulic jack of the multi-stage hydraulic jack is respectively connected with a right-angled ladder, and the right-angled ladders connected to the top of each hydraulic jack are nested with each other, and the bottom The right-angled ladder connected by the hydraulic jack is closest to the hydraulic jack, and also includes a self-locking mechanism, and the self-locking mechanism is arranged between adjacent ladders, so as to avoid mutual contraction and movement between the ladders. 2. A hydraulic lifting device according to claim 1, characterized in that: the base is further provided with a foldable support device, and the base is provided with a groove for accommodating the support device. 3. A hydraulic lifting device according to claim 1, wherein the platform is a flat plate perpendicular to the multi-stage hydraulic jacks. 4. A hydraulic lifting device according to claim 3, characterized in that foldable railings are provided on four sides of the flat plate. 5. A hydraulic lifting device according to claim 1, characterized in that: a support block is provided on the left side of the hydraulic support rod, the support block is connected to the base, and the support block is used to support the multi-stage tilting to the left Hydraulic jack. 6. A hydraulic lifting device according to claim 1, characterized in that: the base is also provided with a locking mechanism, the locking mechanism is arranged on the right side of the multi-stage hydraulic jack, and the locking mechanism is used to lock the hydraulic jack relative to the base. 7. A hydraulic lifting device according to claim 1, wherein the distribution valve is an electronic distribution valve. 8. A hydraulic lifting device according to claim 7, characterized in that: it also includes a wireless controller and a wireless receiver, the wireless receiver is connected to the electronic distribution valve, and the wireless controller is used to send control signals, so The wireless receiver is used to control the electronic dispensing valve after receiving the control signal.