Automatic opening and closing sliding cover mechanism

Abstract

The utility model relates to an automatic opening and closing sliding cover mechanism, and belongs to the field of square cabins. A square cabin body is arranged, the two ends of an electric push rod are hinged to the left side of a fixed top cover fixed to the square cabin body and the right side of a first-stage sliding cover correspondingly, and a first pulley and a second pulley are installed at the left end and the right end of the first-stage sliding cover correspondingly; the lower tail end of the folding steel wire rope is fixed to the right side of the fixed top cover, the unfolding steel wire rope bypasses the second pulley, the upper tail end of the unfolding steel wire rope is fixed to the left side of the second-stage sliding cover, the lower tail end of the unfolding steel wire rope is fixed to the right side of the fixed top cover, and the movement speed ratio and the total stroke of the second-stage sliding cover and the first-stage sliding cover are both 2: 1. The unfolding stroke of the sliding cover is large, the overall dimension of the square cabin is not affected by the unfolding state and the folding state, the electric push rod has the normally-closed self-locking function, and the unfolding state and the folding state of the sliding cover can be reliably locked.

Description

Technical Field

[0001] The utility model relates to the field of square cabins, in particular to an automatic opening and closing sliding cover mechanism for square cabins. Background Art

[0002] As we all know, some equipment shelters contain antenna equipment. During operation, the top cover must automatically open to allow the antenna equipment to deploy outside the shelter. These shelters typically use a clamshell roof structure. When deployed, this structure not only affects the original dimensions of the shelter but also easily obstructs the antenna equipment, affecting its operation. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the utility model provides an automatic opening and closing sliding cover mechanism, which does not affect the outline dimensions of the cabin when the sliding cover is in the unfolded or folded state.

[0004] The technical solution adopted by the utility model to solve its technical problems is: an automatic opening and closing sliding cover mechanism is provided with a cabin body, and its characteristics are that two ends of the electric push rod are respectively hinged to the left side of the fixed top cover and the right side of the first-level sliding cover fixed on the cabin body, and pulleys 1 and 2 are respectively installed at the left and right ends of the first-level sliding cover, the gathering wire rope passes around pulley 1, the upper end of the gathering wire rope is fixed to the left side of the second-level sliding cover, and the lower end of the gathering wire rope is fixed to the right side of the fixed top cover, the unfolding wire rope passes around pulley 2, the upper end of the unfolding wire rope is fixed to the left side of the second-level sliding cover, and the lower end of the unfolding wire rope is fixed to the right side of the fixed top cover.

[0005] The speed ratio and total stroke of the secondary sliding cover and the primary sliding cover are both 2:1.

[0006] The beneficial effects of the present invention are that the sliding cover has a large unfolding stroke, and the unfolded and folded states do not affect the outline size of the cabin. The electric push rod has a normally closed self-locking function, and the sliding cover can be reliably locked in both the unfolded and folded states. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0008] Figure 1 The schematic diagram of the structure of the present invention is also a schematic diagram of the fully expanded state of the present invention.

[0009] Figure 2 It is a schematic diagram of the utility model in a fully folded state.

[0010] In the figure, 1. fixed top cover, 2. electric push rod, 3. pulley 1, 4. first-level sliding cover, 5. retracting wire rope, 6. unfolding wire rope, 7. pulley 2, 8. second-level sliding cover, 9. cabin body. DETAILED DESCRIPTION

[0011] In the figure, the utility model is provided with a cabin body 9, and the two ends of the electric push rod 2 are respectively hinged to the left hinge ear of the fixed top cover 1 fixed on the cabin body 9 and the right hinge ear of the first-level sliding cover 4, and the left and right ends of the first-level sliding cover 4 are respectively installed with pulley 1 3 and pulley 2 7, the gathering wire rope 5 passes around pulley 1 3, the upper end of the gathering wire rope 5 is fixed to the left side of the second-level sliding cover 8, and the lower end of the gathering wire rope 5 is fixed to the right side of the fixed top cover 1, the unfolding wire rope 6 passes around pulley 2 7, the upper end of the unfolding wire rope 6 is fixed to the left side of the second-level sliding cover 8, and the lower end of the unfolding wire rope 6 is fixed to the right side of the fixed top cover 1.

[0012] The ends of the electric push rod 2 are hinged to the fixed top cover 1 and the first-level sliding cover 4, respectively. The extension and retraction of the electric push rod 2 directly drives the first-level sliding cover 4 to slide relative to the cabin body 9. Pulley assemblies are installed at each end of the first-level sliding cover 4. The deployment wire rope 6 and the retraction wire rope 5 are respectively passed through two sets of pulleys, and the ends are respectively connected to the cabin body 9 and the second-level sliding cover 8. When the electric push rod 2 drives the first-level sliding cover 4 to deploy, the deployment wire rope 6 drives the second-level sliding cover 8 to deploy synchronously, and during this process, the retraction wire rope 5 also moves with it. When the electric push rod 2 drives the first-level sliding cover 4 to retract, the retraction wire rope 5 drives the second-level sliding cover 8 to retract synchronously, and during this process, the deployment wire rope 6 also moves with it. When the first-stage slide 4 moves, the pulley assembly fixed to the other pulleys acts as a movable pulley. Due to the movement characteristics of the movable pulley, during the movement of the first-stage slide 4, the second-stage slide 8 always moves synchronously with the first-stage slide at a movement ratio of 2:1, that is, they start at the same time and reach the end point at the same time. The electric push rod has a normally closed self-locking function, and the slide can be reliably locked in both the expanded and folded states.

[0013] The deployment process of the automatic opening and closing sliding cover mechanism is as follows:

[0014] The electric push rod 2 extends, driving the first slide 4 to unfold. During this process, the deployment wire rope 6 drives the second slide 8 to unfold synchronously. Because the second pulley 7 acts as a movable pulley, the speed ratio and total stroke of the second slide 8 and the first slide 4 are both 2:1. During the deployment process, the retraction wire rope 5 is kept basically taut at all times under the traction of the first slide 4.

[0015] The retraction process of the sliding cover mechanism is as follows:

[0016] The electric push rod 2 retracts, driving the first slide 4 to retract. During this process, the retraction wire rope 5 drives the second slide 8 to retract synchronously. Because pulley 1 3 acts as a movable pulley, the speed ratio and total stroke of the second slide 8 and the first slide 4 are both 2:1. During the retraction process, the deployment wire rope 6 is kept basically taut at all times under the traction of the first slide 4.

Claims

1. An automatic opening and closing sliding cover mechanism, provided with a cabin body, characterized in that: The two ends of the electric push rod are respectively hinged to the left side of the fixed top cover and the right side of the first-level sliding cover fixed on the cabin body. Pulley one and pulley two are respectively installed on the left and right ends of the first-level sliding cover. The folding wire rope passes around pulley one, and the upper end of the folding wire rope is fixed to the left side of the second-level sliding cover, and the lower end of the folding wire rope is fixed to the right side of the fixed top cover. The unfolding wire rope passes around pulley two, and the upper end of the unfolding wire rope is fixed to the left side of the second-level sliding cover, and the lower end of the unfolding wire rope is fixed to the right side of the fixed top cover.

2. The automatic opening and closing sliding cover mechanism according to claim 1, characterized in that The speed ratio and total stroke of the secondary sliding cover and the primary sliding cover are both 2:1.

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