Jacking device of hydraulic simple elevator

Abstract

A jacking device of a hydraulic type simple elevator comprises an oil cylinder, an oil cylinder connecting frame and a pump station. The oil cylinder comprises a main-path jacking oil cylinder and branch-path jacking oil cylinders arranged on the two sides of the main-path jacking oil cylinder, a first branch-path oil inlet is formed in the bottom of each branch-path jacking oil cylinder, and a second branch-path oil inlet is formed in the top of each first jacking oil cylinder; a main loop oil pipe is arranged on the pump station; the other end of the main loop oil pipe is connected with a first oil inlet pipe and a second oil inlet pipe through a tee joint, and the first oil inlet pipe and the second oil inlet pipe are connected with a first branch oil inlet in the first jacking oil cylinder and a first branch oil inlet in the second jacking oil cylinder respectively. According to the utility model, the problem that the lift car of the hydraulic direct-jacking type simple lift sinks is avoided; and an oil way connection mode adopted by the utility model is convenient to maintain, and manpower and cost are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting of lifters, in particular to a lifting device of a hydraulic simple lifter. Background Art

[0002] At present, most of the simple lifts in China adopt the hydraulic direct jacking method, which places high demands on the jacking cylinder. At present, the hydraulic direct jacking simple lifts in China have only one oil inlet connected to the oil circuit from the pump station, and the entire oil circuit relies on one channel; and the plunger type oil cylinder is generally used on the market, which has poor stability; therefore, the car often sinks during the use of the simple lift. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a jacking device of a hydraulic simple lift, which can avoid the situation that the car sinks.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a jacking device of a hydraulic simple lift, including a cylinder, a cylinder connecting frame and a pump station; the cylinder includes a main jacking cylinder and a branch jacking cylinder arranged on both sides of the main jacking cylinder, the branch jacking cylinder includes a first jacking cylinder and a second jacking cylinder, the bottom of the branch jacking cylinder is provided with a first branch oil inlet, and the top of the first jacking cylinder is provided with a second branch oil inlet; a high-pressure oil pipe is arranged in the main jacking cylinder, the second branch oil inlet is connected with one end of the high-pressure oil pipe through a short connecting oil pipe, and the other end of the high-pressure oil pipe is connected to the bottom of the main jacking cylinder; a main circuit oil pipe is arranged on the pump station; the other end of the main circuit oil pipe is connected with the first oil inlet pipe and the second oil inlet pipe through a tee, and the first oil inlet pipe and the second oil inlet pipe are respectively connected to the first branch oil inlets on the first jacking cylinder and the second jacking cylinder.

[0005] As an improvement, the first lifting cylinder is a through-core cylinder.

[0006] As an improvement, the oil cylinder is a piston type oil cylinder.

[0007] As an improvement, the high-pressure oil pipe is a rigid part.

[0008] The beneficial effects of the utility model are as follows: by adding an oil inlet at the bottom of each lifting cylinder, the high-pressure oil source from the pump station flows into each branch lifting cylinder through a tee, and the original plunger-type cylinder is replaced with a piston-type cylinder. During operation, the hydraulic oil from the first branch lifting cylinder reaches the bottom oil inlet through a high-pressure rigid oil pipe, thereby completing the lifting. The problem of the hydraulic straight-top simple lift car sinking is avoided; and the oil circuit connection method adopted by the utility model is easy to maintain, saving manpower and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the utility model.

[0010] Explanation of the numbers in the figure: 1. Main circuit lifting cylinder; 2. First lifting cylinder; 3. Second lifting cylinder; 4. Pump station; 5. Main circuit oil inlet pipe; 51. First oil inlet pipe; 52. Second oil inlet pipe; 6. Cylinder connecting frame; 7. Short connecting oil pipe. Implementation

[0011] The utility model is further described in detail below in conjunction with the accompanying drawings of the specification:

[0012] like Figure 1 As shown, a lifting device of a hydraulic simple lift includes a cylinder, a cylinder connecting frame 6 and a pump station 4; the cylinder is a piston cylinder, and the cylinder includes a main lifting cylinder 1 and a branch lifting cylinder arranged on both sides of the main lifting cylinder 1, and the branch lifting cylinder includes a first lifting cylinder 2 and a second lifting cylinder 3, the first lifting cylinder 2 is a through cylinder, and a first branch oil inlet is provided at the bottom of the branch lifting cylinder, and a main circuit oil inlet pipe 5 is provided at the pump station 4, and the other end of the main circuit oil pipe is connected to the first oil inlet pipe 51 and the second oil inlet pipe 52 through a tee, and the first oil inlet pipe 51 and the second oil inlet pipe 52 are respectively connected to the first branch oil inlets on the first lifting cylinder 2 and the second lifting cylinder 3.

[0013] like Figure 1 As shown, the top of the first lifting cylinder 2 is provided with a second branch oil inlet; the main lifting cylinder 1 is provided with a high-pressure oil pipe, the second branch oil inlet is connected to one end of the high-pressure oil pipe through a short connecting oil pipe 7, and the other end of the high-pressure oil pipe is connected to the bottom of the main lifting cylinder 1; the high-pressure oil pipe adopts a rigid part to withstand sufficient pressure inside the cylinder and the high-pressure oil pipe to avoid damage due to severe force. The main fixed cylinder adopts a piston cylinder. The previous plunger cylinder is not stable enough, and the car will slowly descend when in working state.

[0014] The use principle of the utility model is as follows: the hydraulic oil in the pump station 4 first passes through the main circuit oil inlet pipe 5, and then passes through the main circuit oil inlet pipe 5 to be connected with the first circuit oil pipe and the second circuit oil pipe through a tee, and the hydraulic oil respectively enters the first jacking cylinder 2 and the second jacking cylinder 3. After reaching the top of the first jacking cylinder 2, it enters the high-pressure oil pipe in the main circuit jacking cylinder 1 through the short connecting oil pipe 7, so that the elevator starts to lift.

Claims

1. A lifting device for a hydraulic simple lift, comprising a cylinder, a cylinder connecting frame and a pump station; characterized in that: The oil cylinder includes a main lifting cylinder and a branch lifting cylinder arranged on both sides of the main lifting cylinder, the branch lifting cylinder includes a first lifting cylinder and a second lifting cylinder, the bottom of the branch lifting cylinder is provided with a first branch oil inlet, and the top of the first lifting cylinder is provided with a second branch oil inlet; a high-pressure oil pipe is arranged in the main lifting cylinder, the second branch oil inlet is connected with one end of the high-pressure oil pipe through a short connecting oil pipe, and the other end of the high-pressure oil pipe leads to the bottom of the main lifting cylinder; a main circuit oil pipe is arranged on the pump station; the other end of the main circuit oil pipe is connected with the first oil inlet pipe and the second oil inlet pipe through a tee, and the first oil inlet pipe and the second oil inlet pipe are respectively connected to the first branch oil inlets on the first lifting cylinder and the second lifting cylinder.

2. A lifting device for a hydraulic simple lift as claimed in claim 1, characterized in that: The first lifting cylinder is a through-core cylinder.

3. A lifting device for a hydraulic simple lift as claimed in claim 1, characterized in that: The oil cylinder is a piston type oil cylinder.

4. A lifting device for a hydraulic simple lift as claimed in claim 1, characterized in that: The high-pressure oil pipe is a rigid part.

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