Single-push-rod driving cabin top sliding cover mechanism

Abstract

The utility model provides a single-push-rod driving cabin roof sliding cover mechanism which solves the technical problems that in the prior art, a double-push-rod mechanism cannot open a skylight manually, and two push rods are not easy to synchronize. Comprising an outer frame fixed to a cabin roof and an inner frame arranged in the outer frame, sliding rail assemblies are installed between the left side and the right side of the outer frame and the left side and the right side of the inner frame respectively, movable sliding covers are installed on the sliding rail assemblies, and an electric push rod structure is fixed between one side edge of the outer frame and one side edge of the inner frame; a connecting rod is connected between the extendable ends of the two sliding rail assemblies, a push rod of the electric push rod structure is connected to the connecting rod, a rotary knob is connected to the end of a screw rod for driving the push rod of the electric push rod structure, a first opening corresponding to the rotary knob is formed in the outer frame, and a waterproof cover is detachably installed on the first opening. The problem that the sliding cover is difficult to open and close manually when the two push rods are linked due to the fact that a synchronizer is used when one motor drives the two push rods at the same time when the two push rods are used is avoided, and the sliding cover can be controlled to open and close manually when power is off.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile shelters, in particular to a single push rod-driven sliding cover mechanism for the top of a shelter. Background Technique

[0002] Nowadays, mobile shelters are used more and more, and there are various forms of utilization of the space of mobile shelters. The demand for opening skylights on the top of shelters is becoming more and more obvious, especially for mobile shelters used for military purposes.

[0003] The existing sliding cover mechanism for the top of a shelter mainly consists of an outer frame, an inner frame assembly, a motor assembly, a slide rail assembly, a movable sliding cover, etc. The motor drives the double push rods to push the sliding cover to open or close along the slide rails. Due to the synchronization problem of the double push rods, a synchronizer needs to be installed in the motor drive control part. In addition, in order to ensure the synchronous operation of the double push rod structure, the push rod is generally equipped with a planetary gear reducer. Due to the linkage of the synchronizer and the two sets of planetary gear reducers, it is impossible to manually operate the opening and closing of the sliding cover. Another problem is that it is difficult to synchronize the double push rod structure. A synchronizer must be installed for electric operation. If any one of the push rods or the synchronizer breaks down, the mechanism will not work, thus increasing the control difficulty. Content of the Utility Model

[0004] The purpose of the utility model is to provide a single push rod-driven sliding cover mechanism for the top of a shelter, which effectively solves the technical problems in the prior art that the double push rod mechanism cannot manually open the skylight and it is not easy to synchronize the two push rods.

[0005] In order to achieve the above purpose, the utility model provides the following technical solution: A single push rod-driven sliding cover mechanism for the top of a shelter, including an outer frame fixed on the top of the shelter and an inner frame placed inside the outer frame. Slide rail assemblies are respectively installed between the left and right sides of the outer frame and the inner frame. A movable sliding cover is installed on the slide rail assemblies. It is characterized in that an electric push rod structure is fixed between one side of the outer frame and one side of the inner frame.

[0006] A connecting rod is connected between the extendable ends of the two slide rail assemblies. The push rod of the electric push rod structure is connected to the connecting rod. The screw end of the screw rod driving the push rod of the electric push rod structure is connected with a knob. A first opening corresponding to the knob is opened on the outer frame, and a waterproof cover is detachably installed on the first opening.

[0007] Preferably, the electric push rod structure includes a cylinder body and a base communicated with the bottom of the cylinder body. A screw rod is rotatably connected inside the cylinder body. A nut is fitted on the screw rod. The edge of the nut is axially slidably connected to a guide rod fixed inside the cylinder body. A push rod with a hollow bottom sleeved on the screw rod is fixed on the nut. The lower part of the screw rod is connected to a motor through a speed reduction mechanism placed in the base.

[0008] Preferably, a second opening is provided at the tail of the base, and the second opening faces the knob.

[0009] Preferably, the knob is a fixed block fixed to the end of the screw rod, and the tail of the fixed block is rectangular or polygonal.

[0010] Preferably, the slide rail assembly is composed of a first slide rail slidably connected to the inside of the side of the outer frame and a second slide rail slidably connected to the inside of the first slide rail. An angle iron is fixed to the lower part of the movable sliding cover, and the angle iron is fixed to the second slide rail.

[0011] Preferably, two sets of mounting holes are drilled in the movable sliding cover, and the movable sliding cover is fixed to the angle irons on the left and right sides respectively through the two sets of mounting holes. Each set of mounting holes is arranged in a straight line. In order to prevent the single push rod from getting stuck due to the force on one side, when each set of mounting holes extends from one end of the push rod towards the distance, it offsets towards the lateral side without the push rod.

[0012] Preferably, the movable sliding cover is fixed to the angle iron by riveting or welding through the mounting holes.

[0013] Preferably, the speed reduction mechanism includes a first bevel gear sleeved on the output shaft of the motor. The first bevel gear meshes with a second bevel gear rotatably connected in the base. The second bevel gear is coaxially connected with a first gear. The first gear meshes with a second gear sleeved on the screw rod. The number of teeth of the first bevel gear is less than that of the second bevel gear, and the number of teeth of the first gear is less than that of the second gear.

[0014] Preferably, a fixed cover plate is fixed to the upper side of the rear part of the outer frame, and a sealing strip is fixed to the front side of the fixed cover plate. This sealing strip is used to form a seal between the movable sliding cover and the fixed cover plate when the movable sliding cover is in the unopened state.

[0015] Preferably, angle plates extending downward are fixed to the left and right sides of the movable sliding cover, and the angle plates are slidably matched with the lateral outer sides of the outer frame. The angle plates are used for dust and rain protection.

[0016] The beneficial effects of the present utility model are as follows: 1. The sliding cover adopts a single push rod drive design, avoiding the use of a synchronizer when using two push rods and one motor driving two push rods simultaneously, which makes it difficult to manually open and close the sliding cover when the two push rods are linked, and realizes that the sliding cover can be manually operated and controlled to open and close when powered off; 2. The overall structure can use magnesium alloy, which is lightweight; 3. The single push rod does not use a synchronizer, avoiding the problem that if any one of the push rods or the synchronizer is damaged, the mechanism cannot work; 4. The synchronizer and the mechanism for linking the two push rods are omitted, saving costs. Description of the Drawings

[0017] To more clearly illustrate the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 It is the front view structure diagram of the open state of the movable sliding cover of the present utility model;

[0019] Figure 2 It is Figure 1 the rear view of;

[0020] Figure 3 It is Figure 1 the sectional perspective view in the direction of A-A in;

[0021] Figure 4 It is the partial perspective view showing the first opening and the knob;

[0022] Figure 5 It is the perspective Figure 1 of the open state of the movable sliding cover of the present utility model;

[0023] Figure 6 It is the perspective Figure 2 of the open state of the movable sliding cover of the present utility model;

[0024] Figure 7 It is the front view of the closed state of the movable sliding cover of the present utility model;

[0025] Figure 8 It is Figure 7 the sectional perspective view in the direction of B-B in;

[0026] Figure 9 It is the perspective view of the closed state of the movable sliding cover of the present utility model;

[0027] Figure 10 It is the schematic diagram of the electric push rod structure of the present utility model;

[0028] Figure 11 It is the single push rod pushing experiment diagram of the present utility model with the movable sliding cover naturally placed on the slide rail;

[0029] Figure 12 It is the schematic diagram of the punching line for preventing the sliding cover from tilting or jamming of the present utility model.

[0030] Description of reference numerals: outer frame 1, inner frame 2, movable sliding cover 3, connecting rod 4, push rod 5, screw rod 6, knob 7, first opening 8, waterproof cover 9, cylinder 10, base 11, nut 12, guide rod 13, motor 14, second opening 15, first slide rail 16, second slide rail 17, angle iron 18, mounting hole 19, first bevel gear 20, second bevel gear 21, first gear 22, second gear 23, fixed cover plate 24, sealing strip 25, angle plate 26. Specific embodiments

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] In the present invention, the direction in which the movable sliding cover 3 extends when it is opened is defined as the front.

[0033] A single push rod-driven cabin top sliding cover mechanism of the present invention. The single push rod-driven sliding cover mechanism is composed of an outer frame 1, an inner frame 2 assembly, a motor 14 assembly, a slide rail assembly, a movable sliding cover 3 assembly, a connecting rod 4, etc. By pushing the sliding cover along the slide rail with a single push rod, the opening or closing of the sliding cover can be realized.

[0034] The sliding cover mechanism is an outer sliding type structure. When it is opened, the motor 14 rotates, and the push rod 5 pushes the movable sliding cover 3 to move outward along the guide rail direction to open the sliding cover, and vice versa to close it. The gear ratio of the motor 14 of the single push rod structure is small, and manual operation can be realized in the case of power failure. By removing the waterproof cover 9 on the outer frame 1 at the rear of the motor 14, the first opening 8 and the second opening 15 are exposed, and the crank is inserted into the knob 7 and rotated to perform manual control. The crank has a groove corresponding to the rectangle or polygon on the knob 7. The crank is stuck at the tail of the knob 7 through the groove to shake the tail of the screw rod 6 to rotate the screw rod 6. The screw rod 6 drives the nut 12 to move on the guide rod 13, driving the push rod to move linearly. The push rod drives the connecting rod 4 to move linearly, and the connecting rod 4 further drives the opening and closing of the movable sliding cover 3. When the screw rod 6 rotates, it can drive the motor 14 to rotate forward and backward. Since the present invention is driven by a single motor 14 to drive a push rod, the distance between the motor 14 and the push rod is relatively close, resulting in fewer intermediate transmission components. There is no synchronizer and the linkage of another push rod either. Therefore, the manual opening and closing of the movable sliding cover 3 can be realized.

[0035] The reduction mechanism of the present utility model uses a first bevel gear 20, a second bevel gear 21, a first gear 22 and a second gear 23 to reduce speed in sequence to achieve the function of the reduction mechanism. During electric control, the motor 14 rotates, drives the screw rod 6 to rotate through the reduction mechanism, and then drives the push rod 5 to push out or pull back the movable sliding cover 3. During the process of pushing out or pulling back the movable sliding cover 3, the push rod 5 drives the connecting rod. Both ends of the connecting rod 4 are fixed on the second slide rail 17, driving the second slide rail 17 to slide out from the first slide rail 16, and the first slide rail 16 slides out from the outer frame 1.

[0036] Electric control is controlled by a rocker switch. The motor 14 assembly adopts a single push rod structure design, and the control link is simple. In the sliding cover mechanism, the slide rail assembly is selected as a three-section heavy-duty slide rail with a load-bearing capacity of 200 kg. The materials used for the sliding cover mechanism are mainly magnesium alloy plates and profiles, and the overall structure is reliable and lightweight.

[0037] The sliding cover motor 14 is hidden inside the lower part of the fixed cover plate 24. Angle plates 26 are installed on the left and right sides of the movable sliding cover 3. A sealing strip 25 is installed on the contact surface between the fixed cover plate 24 and the movable sliding cover 3, and the overall design has good sealing performance. After the sliding cover is closed, it can withstand the rain shower requirement of a rainfall intensity of 6 mm / min and a shower time of 2 h, and can meet the dust and sand prevention requirements specified in 4.3.3.6.1 of GJB150.12A-2009.

[0038] In the present utility model, from the perspective of the sliding cover pushing effect, the double slide rail and double push rod effect is better, but it is difficult to achieve manual operation. In order to achieve manual operation, the present utility model uses a single push rod for driving, but the skylight movable sliding cover 3 driven by a single push rod on a double slide rail has the following technical problems: 1. The movable sliding cover 3 is in an inclined state: when unfolding, the driven side is in front of the non-driven side, and when folding up, the driven side touches the edge first, and the non-driven side cannot touch the bottom edge; 2. Sticking: Excessive deviation will cause sticking during translation and damage the push rod. The main reason for the sticking is the installation error of the slide rail (straightness, parallelism and clearance). A more effective means to solve the sticking problem is to control the straightness, parallelism and clearance of the slide rail within the minimum range. However, if the installation error of the slide rail cannot be controlled within a reasonable range due to production process or production conditions, the problem of the offset of the movable sliding cover 3 can be solved by offsetting the mounting holes 19 of the movable sliding cover 3. The specific operation is as follows: Place the movable sliding cover 3 flat on the slide rail naturally, and use a single driving push rod to push the slide rail to test the offset distance of the movable sliding cover 3. As Figure 11 shown in the figure, the expected punching line is drawn as a solid line in the figure, and then the dotted line part is the punching line after offset and the movable sliding cover 3 after offset. Then the final confirmed punching line is the punching line of the dotted line part in the figure, and the offset distance is the distance between the expected punching line along the guide rail direction and the tail of the punching line of the dotted line part. Figure 12It is the punching line required after verification. Generally, if the offset distance is A1, the offset distance of the punching line should be greater than or equal to A1. Finally, the movable sliding cover 3 is fixed on the angle iron 18 through multiple holes on the punching line, and can be fixed by riveting or welding.

Claims

1. A single push rod-driven cabin top sliding cover mechanism, comprising an outer frame (1) for fixing on the cabin top and an inner frame (2) placed inside the outer frame (1). Slide rail assemblies are respectively installed between the left and right sides of the outer frame (1) and the inner frame (2). A movable sliding cover (3) is installed on the slide rail assemblies, characterized in that, An electric push rod structure is fixed between the lateral same-side side edges of the outer frame (1) and the inner frame (2); A connecting rod (4) is connected between the extendable ends of the two slide rail assemblies. The push rod (5) of the electric push rod structure is connected to the connecting rod (4). A knob (7) is fixedly connected to the end of the screw rod (6) that drives the push rod (5) of the electric push rod structure. A first opening (8) corresponding to the knob (7) is formed on the outer frame (1), and a waterproof cover (9) is detachably installed on the first opening (8).

2. The single push rod-driven cabin top sliding cover mechanism according to claim 1, characterized in that, The electric push rod structure includes a cylinder body (10) and a base (11) communicated with the bottom of the cylinder body (10). A screw rod (6) is rotatably connected inside the cylinder body (10). A nut (12) is fitted on the screw rod (6). The edge of the nut (12) is axially slidably connected to a guide rod (13) fixed inside the cylinder body (10). A push rod (5) with a hollow bottom and sleeved on the screw rod (6) is fixed on the nut (12). The lower part of the screw rod (6) is connected to a motor (14) through a speed reduction mechanism placed inside the base (11).

3. The single push rod-driven cabin top sliding cover mechanism according to claim 2, characterized in that, A second opening (15) is provided at the tail of the base (11), and the second opening (15) faces the knob (7).

4. A single push rod-driven cabin top sliding cover mechanism according to claim 1, characterized in that, The knob (7) is a fixed block fixed to the end of the screw rod (6), and the tail of the fixed block is rectangular or polygonal.

5. The single push rod-driven cabin top sliding cover mechanism according to claim 1, characterized in that The slide rail assembly is composed of a first slide rail (16) slidably connected inside the side edge of the outer frame (1) and a second slide rail (17) slidably connected inside the first slide rail (16). An angle iron (18) is fixed to the lower part of the movable sliding cover (3), and the angle iron (18) is fixed to the second slide rail (17).

6. The single push rod-driven cabin top sliding cover mechanism according to claim 5, characterized in that, Two groups of mounting holes (19) are formed in the movable sliding cover (3). The movable sliding cover (3) is respectively fixed to the angle irons (18) on the left and right sides through the two groups of mounting holes (19). Each group of mounting holes (19) is arranged in a straight line. In order to prevent jamming caused by unilateral force of a single push rod, when each group of mounting holes (19) extends from one end of the push rod towards the distance, it offsets towards the lateral side without the push rod (5).

7. The single push rod-driven cabin top sliding cover mechanism according to claim 6, characterized in that, The movable sliding cover (3) is fixed to the angle iron (18) through the mounting holes (19) by riveting or welding.

8. A single push rod driven cabin top sliding cover mechanism according to claim 2, characterized in that, The speed reduction mechanism includes a first bevel gear (20) sleeved on the output shaft of the motor (14). The first bevel gear (20) meshes with a second bevel gear (21) rotatably connected inside the base (11). The second bevel gear (21) is coaxially connected with a first gear (22). The first gear (22) meshes with a second gear (23) sleeved on the screw rod (6). The number of teeth of the first bevel gear (20) is less than that of the second bevel gear (21), and the number of teeth of the first gear (22) is less than that of the second gear (23).

9. A single push rod-driven cabin top sliding cover mechanism according to claim 1, characterized in that, A fixed cover plate (24) is fixed to the upper side of the rear part of the outer frame (1). A sealing rubber strip (25) is fixed to the front side of the fixed cover plate (24). The sealing rubber strip (25) is used to form a seal between the movable sliding cover (3) and the fixed cover plate (24) when the movable sliding cover (3) is in the unopened state.

10. A single push rod-driven cabin top sliding cover mechanism according to claim 1, characterized in that, The left and right sides of the movable sliding cover (3) are fixed with angle plates (26) extending downward, and the angle plates (26) are slidably engaged with the lateral outer surfaces of the outer frame (1).

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