CN213354772U

CN213354772U - Upper end supporting structure of movable ramp

Info

Publication number: CN213354772U
Application number: CN202022260344.XU
Authority: CN
Inventors: 赵兵; 俞赟
Original assignee: 708th Research Institute of CSIC
Current assignee: 708th Research Institute of CSIC
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2021-06-04
Anticipated expiration: 2030-10-12

Abstract

The utility model discloses an activity ramp upper end bearing structure, the fixed deck of one deck on the activity deck is connected to the stiff end of activity ramp, and the expansion end and the fixed deck or the activity deck of activity ramp are connected, are equipped with fixed ramp on the fixed deck, and one end one side of fixed ramp is located to the stiff end of activity ramp, a serial communication port, the stiff end of activity ramp is equipped with deck bearing structure with the junction of fixed deck, and this deck bearing structure divide into two parts, one of them part and activity ramp, fixed ramp fixed connection, and another part is connected with fixed deck. The utility model discloses satisfying the movable ramp and passing from top to bottom and loading the vehicle requirement in the navigation, providing the support to the movable ramp, the fixed deck that the movable ramp upper end is connected does not have the cave in, does not influence the vehicle and arranges and pass.

Description

Upper end supporting structure of movable ramp

Technical Field

The utility model relates to ship structure arranges technical field, specifically is a movable ramp upper end bearing structure design.

Background

The conventional inland river vehicle transport ship generally only loads small vehicles (the weight of the vehicles is not more than 2t), as shown in fig. 1 and 2, a fixed ramp 4 is arranged on a fixed deck 2 at each layer of a cargo hold, while an inland river ro-ro ship for loading medium and large vehicles generally arranges a movable deck 1 above a main deck, the movable deck 1 is connected with an upper layer of the fixed deck 2 by a movable ramp 3, the (upper) fixed end of the movable ramp 3 is connected with the upper layer of the fixed deck 2, the (lower) movable end of the movable ramp 3 is connected with the movable deck 1, and the upper layer of the fixed deck 2 connected with the fixed end of the movable ramp 3 has a local depression 5 (shaded area in fig. 2) near an opening to form a ramp end approach angle and a departure angle. The web height of the open end webs 6 of the fixed deck 2 in the region of the depression 5 is significantly reduced, and the web height of the longitudinal webs 7 of the fixed deck 2 connected thereto is also reduced, so that the supporting effect on the fixed end of the movable deck 3 is reduced. As shown in fig. 2, the vehicle passing or parking cannot be realized at the local depression 5 (the shaded area in fig. 2) of the connecting area of the fixed ends of the fixed deck 2 and the movable ramp 3, and a plurality of break angles (K.L.) appear on the deck surface, which increases the difficulty of the construction process.

The approach angle and the departure angle of the end part of the movable ramp are similar to those of the fixed ramp, but the support conditions are not as good as those of the fixed ramp, the support mode of the top end suspension and the middle pull rod of the ramp is generally adopted, and vehicles can be parked on the movable ramp during sailing, namely the movable ramp needs to meet the same strength and rigidity requirements as those of the fixed deck. The inclination of the traditional movable ramp is generally smaller than that of a fixed ramp higher than the same layer, which means that the opening of the fixed deck on the upper layer at the ramp is longer, and the arrangement of vehicles on the deck is influenced; if the movable ramp keeps the same inclination as the fixed ramp, the fixed deck connected with the top end of the movable ramp needs to be locally sunken at the opening to form the end part of the movable ramp to extend, so that the strength of deck members and the supporting effect of the end part of the movable ramp are weakened, and the difficulty of a construction process is increased by the sunken deck surface.

Disclosure of Invention

The utility model discloses the technical problem that will solve is: the existing fixed deck is easy to be sunken with the upper end of the movable ramp, the strength of the lower truss of the deck at the sunken part is weakened, and the difficulty of the construction process is increased.

In order to solve the technical problem, the utility model provides an upper end supporting structure of a movable ramp, wherein the fixed end of the movable ramp is connected with an upper fixed deck, and the movable end of the movable ramp is connected with a movable deck; the main deck is connected with the upper fixed deck through the fixed ramp, the movable deck and the movable ramp, and the main deck is characterized in that the fixed end of the movable ramp is elastically connected with a truss at the opening end of the fixed deck.

Preferably, the fixed deck is provided with an open-end stringer close to the opening edge of the upper end of the movable ramp.

Preferably, the fixed end of the movable ramp is elastically connected with the fixed deck.

Preferably, the movable ramp and the fixed ramp have the same length.

Preferably, the width of the movable ramp is the same as that of the fixed ramp.

Preferably, the approach angle and the departure angle of the fixed end of the movable ramp are the same as those of the fixed ramp.

Preferably, when the movable end of the movable ramp is butted with the movable deck, the movable ramp is smoothly connected with the movable deck, the fixed ramp and the next layer of fixed deck.

Preferably, when the movable end of the movable ramp is connected with the movable deck, the movable end of the movable ramp and the movable deck are attached to each other, namely, the bottom of the movable end of the movable ramp forms a ramp end approaching angle and a ramp end departing angle.

Preferably, the movable end of the movable ramp is connected with the lower truss of the upper fixed deck of the fixed deck connected with the fixed end of the movable ramp through a telescopic rod.

The utility model does not affect the vehicle layout and the component strength of the fixed deck; but also can meet the requirements of the approach angle departure angle and the end part support of the movable ramp. Compared with the prior art, the beneficial effects of the utility model reside in that:

1. when the movable end of the movable ramp is put down, the movable deck and the fixed deck can be connected, so that the same function as that of the fixed ramp is realized;

2. the fixed deck at the upper end of the movable ramp is not sunken, so that the vehicles can not be influenced when passing and parking on the deck;

3. the movable ramp can be retracted during navigation and a trolley is loaded above the movable ramp.

The movable ramp adopting the novel design can meet the requirements of parking vehicles on the ramp and on the ramp during navigation, and has no influence on the strength of the upper layer of fixed deck component.

Drawings

FIG. 1 is a longitudinal sectional view of a conventional upper end support structure of a movable ramp;

FIG. 2 is a plan view of a fixed deck above a support structure on the upper end of a conventional movable ramp;

fig. 3 is a longitudinal sectional view of the supporting structure at the upper end of the movable ramp according to the present invention;

FIG. 4 is a plan view of a fixed deck on the upper support structure of the movable ramp according to the present invention;

fig. 5 is a cross-sectional view taken along the plane a-a in fig. 4.

Detailed Description

In order to make the present invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.

Examples

As shown in fig. 3-5, for the utility model provides a movable ramp upper end bearing structure, movable deck 1 and upper fixed deck 2 are connected to the stiff end of movable ramp 3, and the movable end of movable ramp 3 is connected with movable deck 1, and fixed ramp 4 is connected to movable deck 1 below, the web 7a of the stiff end of movable ramp 3 is connected with the vertical purlin 7 of fixed deck 2.

The fixed deck 2 is provided with an open-end truss 6 near the deck opening edge of the movable ramp 3. The longitudinal support girders 7 of the fixed deck 2 are connected with the open-end girders 6.

The fixed end of the movable deck is elastically connected with the girder 6 at the opening end of the fixed deck.

The length and the width of the movable ramp 3 are the same as those of the fixed ramp 4. The approach angle and the departure angle of the fixed end of the movable ramp 3 are the same as those of the fixed ramp 4.

When the movable end of the movable ramp is in butt joint with the movable deck, the movable ramp is in smooth connection with the movable deck, the fixed ramp and the next layer of fixed deck. When the movable end of the movable ramp 3 is connected with the movable deck 1, the movable end and the movable deck are attached to each other, namely, the bottom of the movable end of the movable ramp 3 forms a ramp end approaching angle and a ramp end departure angle.

The movable end of the movable ramp 3 is connected with the lower truss of the upper fixed deck 2 of the fixed deck 2 connected with the fixed end of the movable ramp 3 through a telescopic rod 8.

As shown in FIG. 3, the fixed end of the movable ramp can be regarded as a partial fixed ramp, meeting the approach angle and departure angle requirements of the ramp. The open end truss of the fixed deck provides elastic support for the fixed end, and the movable end of the movable ramp is stretched by the mechanism to be lifted up and down; the fixed deck near the opening is flat, and the parking of the vehicle is not influenced.

As shown in fig. 4 and 5, the fixed end panel of the movable ramp is not connected with the fixed deck, and the web plate of the movable ramp is connected with the lower truss of the fixed deck.

Claims

1. A supporting structure at the upper end of a movable ramp is characterized in that the fixed end of the movable ramp (3) is connected with an upper fixed deck (2), and the movable end of the movable ramp (3) is connected with a movable deck (1); the main deck is connected with the upper fixed deck (2) through the fixed ramp (4), the movable deck (1) and the movable ramp (3), and is characterized in that the fixed end of the movable ramp (3) is elastically connected with a truss (6) at the opening end of the fixed deck.

2. The movable ramp upper end support structure according to claim 1, characterized in that the fixed deck (2) is provided with an open end stringer (7) near the open edge of the upper end of the movable ramp (3).

3. The movable ramp upper end support structure according to claim 2, wherein the open end stringer (7) is butted against a web (7a) at the fixed end of the movable ramp.

4. The upper end support structure of a movable ramp according to claim 1, characterized in that the movable ramp (3) and the fixed ramp (4) have the same length.

5. The upper end support structure of a movable ramp according to claim 1, characterized in that the width of the movable ramp (3) is the same as that of the fixed ramp (4).

6. The movable ramp upper end support structure according to claim 1, wherein the approach angle and the departure angle of the fixed end of the movable ramp (3) are the same as those of the fixed ramp (4).

7. The upper end supporting structure of the movable ramp according to claim 1, characterized in that when the movable end of the movable ramp (3) is butted with the movable deck (1), the movable ramp (3) is smoothly connected with the movable deck (1), the fixed ramp (4) and the next layer of the fixed deck (2).

8. The upper end supporting structure of the movable ramp according to claim 1, characterized in that when the movable end of the movable ramp (3) is connected with the movable deck (1), the movable end and the movable deck are attached to each other, namely, the bottom of the movable end of the movable ramp (3) forms a ramp end approaching angle and a ramp end departing angle.

9. The movable ramp upper end support structure according to claim 1, characterized in that the movable end of the movable ramp (3) is connected with the lower girder of the upper fixed deck (2) of the fixed deck (2) connected with the fixed end of the movable ramp (3) through the telescopic rod (8).