Passenger elevator with emergency elevator withdrawing function

Abstract

The utility model belongs to equipment for loading and unloading goods on a ship or getting on and off passengers, and relates to a passenger elevator with an emergency elevator withdrawing function, which comprises an elevator body, a chassis, a bracket and a manual elevator withdrawing system, the manual elevator withdrawing system comprises a hand pump, a telescopic oil cylinder and an oil tank, the rear end of the elevator body is arranged on the chassis through a rotating shaft, and the bracket is arranged on the bracket. The bracket is hinged to the front end of the ladder body, a telescopic shaft of the telescopic oil cylinder is connected with the ladder body, a cylinder body of the telescopic oil cylinder is installed on the bracket, the telescopic oil cylinder is connected with an oil tank through an oil suction pipeline and an oil return pipeline, the hand pump is arranged on the oil suction pipeline, and the oil return pipeline is connected with the oil tank through an oil return pipeline. And a first pipeline valve is arranged between the oil suction pipeline and the oil return pipeline. By operating the hand pump rocker, the equipment can be rapidly and effectively evacuated from the ship under the condition that the passenger elevator breaks down or is powered off, and normal navigation of the ship is guaranteed.

Description

Technical Field

[0001] The utility model relates to a passenger elevator with an emergency evacuation ladder function, belonging to the technical field of equipment for loading and unloading goods on ships or for passengers to get on and off ships. Background Art

[0002] A passenger elevator is an important equipment for passengers to get on and off ships, and its safety and reliability are extremely important for the ro-ro production. In order to ensure that the passenger elevator can be efficiently and safely connected to the ship for operation, an electric device is generally used to achieve this process. During the connection operation, the passenger elevator slowly approaches the ship and is accurately docked with the docking interface of the ship under the drive of the electric evacuation ladder system.

[0003] However, despite strict preventive measures, during the operation of the passenger elevator connecting to the ship, it is still possible to encounter unforeseen situations such as equipment failures or sudden power outages, resulting in the inability of the passenger elevator to lift and the ship to evacuate, thus delaying the departure of the ship and affecting the normal safe production operation of the wharf.

[0004] Traditional passenger elevator designs often neglect the function of emergency evacuation ladders. Once equipment failures or power outages occur, traditional passenger elevators cannot provide fast and effective evacuation means. Content of the Utility Model

[0005] The purpose of the utility model is to provide a new technical solution to improve or solve the technical problems existing in the prior art as described above.

[0006] The technical solution provided by the utility model is as follows: A passenger elevator with an emergency evacuation ladder function, including a ladder body, a chassis, a bracket and a manual evacuation ladder system. The manual evacuation ladder system includes a hand pump, a telescopic oil cylinder and an oil tank. The rear end of the ladder body is installed on the chassis through a rotating shaft. The bracket is hinged to the front end of the ladder body. The telescopic shaft of the telescopic oil cylinder is connected to the ladder body. The cylinder body of the telescopic oil cylinder is installed on the bracket. The telescopic oil cylinder is connected to the oil tank through an oil suction pipeline and an oil return pipeline. The hand pump is arranged on the oil suction pipeline. A first pipeline valve is arranged between the oil suction pipeline and the oil return pipeline.

[0007] The technical solution provided by the utility model, compared with the prior art, has the following beneficial effects: The manual evacuation ladder system of the utility model serves as a backup evacuation ladder system. In the event of a failure or power outage of the passenger elevator, by operating the rocker of the hand pump, the passenger elevator can be quickly and effectively evacuated from the ship to ensure the normal departure of the ship.

[0008] On the basis of the above technical solution, the utility model can also be improved as follows.

[0009] Further, a second pipeline valve is also arranged on the oil return pipeline.

[0010] The beneficial effect of adopting the above further solution is that, without the intervention of the emergency ladder retraction system, the oil circuit between the telescopic cylinder and the fuel tank is cut off by closing the second pipeline valve, ensuring the independence and stability of the hydraulic system.

[0011] Further, the ladder body includes a walking passage and handrails arranged on both sides of the walking passage.

[0012] Further, a ladder unit is also provided on the chassis. The ladder unit has a slope, and the walking passage is connected to the ladder unit.

[0013] The beneficial effect of adopting the above further solution is that a continuous walking path is formed, facilitating the transfer of passengers between different heights.

[0014] Further, moving rollers are provided at the bottom of the chassis.

[0015] The beneficial effect of adopting the above further solution is to facilitate the movement or position adjustment of the entire passenger ladder.

[0016] Further, moving rollers are also provided at one end of the bracket far from the hinge with the ladder body.

[0017] The beneficial effect of adopting the above further solution is that when the telescopic cylinder acts to lift the ladder body, the bracket can move flexibly according to the lifting height to maintain stability.

[0018] Further, there are two telescopic cylinders, namely a first telescopic cylinder and a second telescopic cylinder, which are symmetrically arranged on both sides of the ladder body.

[0019] The beneficial effect of adopting the above further solution is that the first telescopic cylinder and the second telescopic cylinder are respectively installed on the brackets on both sides of the ladder body, and the two are symmetrically distributed with respect to the center line of the ladder body. This layout not only makes the entire passenger ladder more balanced in structure but also can provide more stable supporting force during the lifting process. Compared with a single cylinder, the design of double cylinders can provide greater lifting force and load-bearing capacity.

[0020] Further, the oil suction pipeline is divided into two paths. One path is connected to the rodless cavity of the first telescopic cylinder, and the other path is connected to the rodless cavity of the second telescopic cylinder. The oil return pipeline is also divided into two paths. One path is connected to the rod cavity of the first telescopic cylinder, and the other path is connected to the rod cavity of the second telescopic cylinder.

[0021] The beneficial effect of adopting the above further solution is that through the pipeline system, the two cylinders can maintain the same telescopic speed and force, avoiding the situation of the ladder body tilting or shaking.

[0022] Further, it further includes an electric ladder retracting system, which can drive the bracket to rotate around the hinge point when powered on. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0024] Figure 1 Structural schematic diagram of a passenger elevator with an emergency ladder retracting function according to the present invention;

[0025] Figure 2 Hydraulic structural schematic diagram of a passenger elevator with an emergency ladder retracting function in the first specific embodiment of the present invention;

[0026] Figure 3 Structural schematic diagram of a passenger elevator with an emergency ladder retracting function in the second specific embodiment of the present invention;

[0027] In the figure, 1, chassis; 101, ladder unit; 2, ladder body; 201, walking passage; 202, handrail; 3, telescopic oil cylinder; 301, first telescopic oil cylinder; 302, second telescopic oil cylinder; 4, bracket; 5, oil tank; 601, oil suction pipe; 602, oil return pipe; 7, hand pump; 8, rocker; 9, moving roller; 10, second pipeline valve; 11, first pipeline valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following describes the principles and features of the present invention in combination with examples. The examples given are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0029] Embodiment 1:

[0030] As Figure 1 and Figure 2As shown in the figure, a passenger elevator with an emergency evacuation ladder function includes a chassis 1, a ladder body 2, a bracket 4, and a manual evacuation ladder system. The manual evacuation ladder system includes a telescopic oil cylinder 3, an oil tank 5, and a hand pump 7. The bottom of the rear end of the ladder body 2 is installed on the chassis 1 through a rotating shaft to realize the rotation or inclination of the ladder body 2. The chassis 1 is the support foundation for the rear end of the ladder body 2. The bracket 4 is hinged to the bottom of the front end of the ladder body 2. The telescopic shaft of the telescopic oil cylinder 3 is connected to the ladder body 2, and the cylinder body of the telescopic oil cylinder 3 is installed on the bracket 4. The bracket 4 supports and fixes the telescopic oil cylinder 3 and serves as the support foundation for the front end of the ladder body 2 when the ladder body 2 rotates. The telescopic oil cylinder 3 is connected to the oil tank 5 through a hydraulic oil pipe. The hydraulic oil pipe includes an oil suction pipe 601 and an oil return pipe 602. The oil suction pipe is used to transport hydraulic oil from the oil tank 5 to the telescopic oil cylinder 3, and the oil return pipe returns the hydraulic oil from the telescopic oil cylinder 3 to the oil tank 5. One end of the oil suction pipe 601 is connected to the oil tank 5, and the other end of the oil suction pipe 601 is connected to the rodless cavity of the telescopic oil cylinder 3. One end of the oil return pipe 602 is connected to the oil tank 5, and the other end of the oil return pipe 602 is connected to the rod cavity of the telescopic oil cylinder 3. The hand pump 7 is arranged on the oil suction pipe 601 and is used to generate hydraulic power through manual operation. A rocker 8 is provided on the hand pump 7. A first pipeline valve 11 is provided between the oil suction pipe 601 and the oil return pipe 602 to control the flow direction of the hydraulic oil.

[0031] More specifically, a second pipeline valve 10 is further provided on the oil return pipe 602. By setting the second pipeline valve 10, the oil circuit between the telescopic oil cylinder 3 and the oil tank 5 can be cut off when the emergency evacuation ladder system is not working, ensuring the independence and stability of the hydraulic system.

[0032] In the embodiments of the present invention, the types of the first pipeline valve 11 and the second pipeline valve 10 are not limited, as long as they meet the requirements for oil circuit switching and use, they should be within the protection scope of the present invention. Specifically, in order to realize the flexible switching and control of the oil circuit in the hydraulic system, the first pipeline valve 11 and the second pipeline valve 10 can select various types of valves, including but not limited to needle valves. As a common fluid control element, the needle valve has a simple structure, good sealing performance, and convenient adjustment. Therefore, it is a suitable choice to meet the oil circuit switching requirements of the present invention. However, this does not mean that the needle valve is the only option, and other valves with similar functions are also applicable.

[0033] The ladder body 2 includes a walking passage 201 and handrails 202 arranged on both sides of the walking passage 201. The walking passage 201 is the main walking area for passengers to get on and off the ladder, and the handrails 202 provide safety support for passengers. A step unit 101 is also provided on the chassis 1. The step unit 101 has a slope, and the walking passage 201 is connected end to end with the step unit 101 to form a continuous walking path, facilitating the transfer of passengers between different heights.

[0034] Moving rollers 9 are provided at the bottom of the chassis 1 to facilitate the movement or position adjustment of the entire passenger ladder.

[0035] Moving rollers 9 are also provided at one end of the bracket 4 away from the hinge connection with the ladder body 2, so that when the telescopic oil cylinder 3 acts to lift the ladder body 2, the bracket 4 can move flexibly according to the lifting height to maintain stability.

[0036] The passenger ladder with the emergency ladder withdrawal function further includes an electric ladder withdrawal system. When powered on, the electric ladder withdrawal system can drive the bracket 4 to rotate around the hinge point.

[0037] The manual ladder withdrawal system of the present utility model is used as a backup ladder withdrawal system. In the event of a failure or power outage of the passenger ladder, the method of separating the object from the ship connection part by operating the hand pump rocker is as follows: First, close the first pipeline valve 11, open the second pipeline valve 10, and shake the rocker 8 of the hand pump 7. The hand pump 7 pumps the hydraulic oil in the fuel tank 5 through the oil suction pipeline 601 into the rodless cavity of the oil cylinder 3. The piston rod of the oil cylinder 3 extends and drives the ladder body 2 to rotate and lift around the rotation axis through the bracket 4, so as to separate from the ship connection part; stop shaking the hand pump 7, push the passenger ladder away from the ship by a certain safe distance, and then slowly open the first pipeline valve 11. Under the action of the self-gravity of the ladder body 2, the hydraulic oil in the rodless cavity of the oil cylinder 3 returns to the fuel tank 5 through the first pipeline valve 11 and the second pipeline valve 10, and the ladder body 2 slowly descends to the horizontal position.

[0038] Embodiment 2:

[0039] Different from Embodiment 1, the telescopic oil cylinder 3 includes two, namely a first telescopic oil cylinder 301 and a second telescopic oil cylinder 302, and the first telescopic oil cylinder 301 and the second telescopic oil cylinder 302 are symmetrically arranged on both sides of the ladder body 2.

[0040] Such as Figure 3As shown in the figure, in order to ensure the stability of the ladder body 2 during the lifting process, the two telescopic cylinders 3 need to be linked through a synchronous control device. The oil suction pipeline 601 is branched into two paths, one path is connected to the rodless cavity of the first telescopic cylinder 301, and the other path is connected to the rodless cavity of the second telescopic cylinder 302. The oil return pipeline 602 is also branched into two paths, one path is connected to the rod cavity of the first telescopic cylinder 301, and the other path is connected to the rod cavity of the second telescopic cylinder 302. Through the pipeline system, the two telescopic cylinders 3 can be kept at the same telescopic speed and force, avoiding the situation that the ladder body 2 tilts or shakes.

[0041] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A passenger elevator with emergency evacuation function, characterized in that: The invention comprises a chassis (1), a ladder body (2), a bracket (4) and a manual ladder retrieval system, wherein the manual ladder retrieval system comprises a telescopic oil cylinder (3), an oil tank (5) and a hand pump (7). The rear end of the ladder body (2) is mounted on the chassis (1) via a rotating shaft, the bracket (4) is hinged to the front end of the ladder body (2), the telescopic shaft of the telescopic oil cylinder (3) is connected to the ladder body (2), the cylinder body of the telescopic oil cylinder (3) is mounted on the bracket (4), the telescopic oil cylinder (3) is connected to the oil tank (5) via an oil suction pipeline (601) and an oil return pipeline (602), the hand pump (7) is arranged on the oil suction pipeline (601), and a first pipeline valve (11) is arranged between the oil suction pipeline (601) and the oil return pipeline (602).

2. The passenger elevator with emergency evacuation function according to claim 1, characterized in that: The oil return pipeline (602) is also provided with a second pipeline valve (10).

3. The passenger elevator with emergency evacuation function according to claim 1, characterized in that: The ladder body (2) comprises a walking passage (201) and handrails (202) arranged on both sides of the walking passage (201).

4. The passenger elevator with emergency evacuation function according to claim 3, characterized in that: The chassis (1) is also provided with a step unit (101), the step unit (101) has a slope, and the walking passage (201) is connected to the step unit (101).

5. The passenger elevator with emergency evacuation function according to any one of claims 1 to 4, characterized in that: The bottom of the chassis (1) is provided with a moving roller (9).

6. The passenger elevator with emergency evacuation function according to claim 5, characterized in that: The end of the bracket (4) away from the hinged connection with the ladder body (2) is also provided with a moving roller (9).

7. The passenger elevator with emergency evacuation function according to claim 1, characterized in that: The telescopic oil cylinder (3) comprises two, namely a first telescopic oil cylinder (301) and a second telescopic oil cylinder (302); the first telescopic oil cylinder (301) and the second telescopic oil cylinder (302) are symmetrically arranged on both sides of the ladder body (2).

8. The passenger elevator with emergency evacuation function according to claim 7, characterized in that: The oil suction pipe (601) is divided into two paths, one of which is connected to the rodless chamber of the first telescopic cylinder (301), and the other is connected to the rodless chamber of the second telescopic cylinder (302). The oil return pipe (602) is also divided into two paths, one of which is connected to the rod chamber of the first telescopic cylinder (301), and the other is connected to the rod chamber of the second telescopic cylinder (302).

9. The passenger elevator with emergency evacuation function according to claim 1, characterized in that: It also comprises an electric ladder retrieval system, which can drive the bracket (4) to rotate around the hinge point when powered on.

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