Embedded lifting and opening hatch door mechanism

Abstract

The present invention provides an embedded lifting and horizontal opening hatch mechanism, comprising: comprising at least one set of hatch components, each set of hatch components comprising: an internal frame, a lifting and rotating hydraulic cylinder, a rotating arm, a rotating shaft, a first gear, a second gear, a transmission device, a hatch and a gear anti-rotation rod; the cylinder is fixed to the internal frame, the other end of the piston rod is fixedly connected to the first end of the rotating arm, the second end of the rotating arm is sleeved on the rotating shaft and is rotatably connected to the rotating shaft; the hatch is fixedly connected to the top of the rotating shaft; the first gear is arranged on the piston rod and is rotatably connected to the piston rod; the second gear is fixedly connected to the rotating shaft, the first gear and the second gear are at the same height and have the same outer diameter and number of teeth, and the first gear and the second gear are connected through a transmission device. The application of the present invention can reduce the space occupied by the hatch mechanism inside the application equipment.

Description

Technical Field

[0001] The present application relates to the technical field of hatch door structures, and in particular to an embedded lifting and opening hatch door mechanism. Background Art

[0002] As an important entrance and exit between the whole equipment and the outside world, the door mechanism not only protects the built-in equipment or personnel, but also plays other roles such as beautiful appearance and concealment. For example, in the applications of aviation, shipbuilding and other industries, embedded door mechanisms are mostly used, requiring the door to be flush with the external surface after closing. Therefore, in the prior art, a connecting rod assembly and a flip door are usually used, and the working principle of the connecting rod assembly is used to realize the flip opening and closing of the door.

[0003] However, as the internal structure of application equipment such as ships or spacecraft becomes more and more compact, the installation space of the embedded door mechanism is also required to be further compressed. The multi-link combination structure used by the traditional flip door and the flipping of the door both require sufficient movement space, resulting in the need to reserve sufficient space for the door mechanism inside the application equipment. In addition, the traditional flip door mechanism has strict requirements on the transmission synchronization on the same side, otherwise it is very easy to cause the door to twist and deform. Once a failure or jam occurs somewhere during the transmission process, it is also very easy to cause deformation or damage to other parts of the mechanism. Moreover, the flip door, whether in the marine environment or the aerospace environment, will have a certain interference and impact on the navigation of the machine after the large area of ​​the door is flipped open. Summary of the invention

[0004] In view of this, the present invention provides an embedded lifting and opening door mechanism, thereby reducing the space occupied by the door mechanism inside the application equipment.

[0005] The technical solution of the present invention is specifically achieved as follows:

[0006] An embedded lifting and horizontal opening hatch mechanism comprises: at least one set of hatch components, each set of hatch components comprises: an internal frame, a lifting and rotating hydraulic cylinder, a rotating arm, a rotating shaft, a first gear, a second gear, a transmission device, a hatch and a gear anti-rotation rod;

[0007] The lifting and rotating hydraulic cylinder comprises a cylinder barrel and a piston rod, one end of the piston rod is arranged in the cylinder barrel; the cylinder barrel is fixed on the internal frame, the other end of the piston rod is fixedly connected to the first end of the rotating arm, and the second end of the rotating arm is sleeved on the rotating shaft and is rotatably connected to the rotating shaft;

[0008] The hatch is fixedly connected to the top of the rotating shaft;

[0009] The first gear is arranged on the piston rod and is rotatably connected to the piston rod; the second gear is fixedly connected to the rotating shaft, the first gear and the second gear are at the same height and have the same outer diameter and number of teeth, and the first gear and the second gear are connected through a transmission device;

[0010] The top of the gear anti-rotation rod is connected to the first gear, and the bottom of the gear anti-rotation rod is fixedly connected to the built-in frame for fixing the first gear.

[0011] Preferably, the first end of the rotating arm is arranged on the top of the piston rod of the lifting and rotating cylinder and is connected to the piston rod through a key; the first gear is arranged on the piston rod below the first end of the rotating arm and is rotatably connected to the piston rod through a bearing.

[0012] Preferably, the hatch and the rotating shaft are connected via a key;

[0013] The second end of the rotating arm is sleeved on the rotating shaft below the cabin door and is rotatably connected to the rotating shaft through a bearing;

[0014] The second gear is arranged on the rotating shaft below the second end of the rotating arm and is connected to the rotating shaft through a key.

[0015] Preferably, an upper limit block is arranged at the top end of the rotating shaft, and the upper limit block is arranged in a limit groove reserved on the cabin door; and a lower limit device is arranged at the bottom end of the rotating shaft.

[0016] Preferably, the transmission device is a chain matching the first gear and the second gear.

[0017] Preferably, the transmission device is a toothed synchronous belt matching the first gear and the second gear.

[0018] Preferably, a sliding block is provided on the upper surface of the rotating arm, and an arc-shaped sliding groove matching the sliding block is provided on the lower surface of the cabin door.

[0019] Preferably, the slider is a cylindrical structure.

[0020] Preferably, the slider is a spherical embedded slider or a T-shaped embedded slider, the arc-shaped slide groove is a T-shaped groove, and the spherical embedded slider or the T-shaped embedded slider is embedded in the T-shaped groove.

[0021] Preferably, the embedded lifting and opening door mechanism is provided with four groups of door components.

[0022] As can be seen above, the embedded lifting and opening hatch door mechanism provided by the present invention can have the following beneficial effects:

[0023] (1) By adopting the follow-up mode of double gears and chains, the rotation angle of the hatch can be automatically adjusted when the hatch is opened, so that the hatch can be opened horizontally, thereby effectively reducing the space occupied by the hatch mechanism inside the application equipment. Except for the lifting and rotating hydraulic cylinder, there are no other redundant devices and corresponding reserved spaces, which minimizes the demand for installation space.

[0024] (2) Since each set of embedded lifting and opening door mechanisms works independently, interference between the doors during operation is prevented, thus ensuring the reliability of the structure.

[0025] (3) The hatch is opened and closed by a flat-opening door, and the height of the door protruding from the outside of the equipment is relatively small, so that the disturbance to the navigation of the application equipment is relatively small, thereby ensuring the safety of the navigation of the application equipment.

[0026] (4) By arranging a slider on the rotating arm and an arc-shaped slide groove on the hatch, the slider slides in the arc-shaped slide groove, which plays a role in guiding and limiting the movement of the hatch, making the operation more reliable. It can also play a supporting role for the hatch, so that the hatch can be supported at two points, thereby improving the stability and reliability of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the embedded lifting and opening horizontal door mechanism in an embodiment of the present invention.

[0028] Figure 2 It is a schematic diagram of the hatch opening of the embedded lifting and opening horizontal hatch door mechanism in an embodiment of the present invention.

[0029] Figure 3 It is a schematic diagram of the closed hatch of the embedded lifting and opening hatch mechanism in an embodiment of the present invention.

[0030] Figure 4 It is a schematic diagram of the connection between the lifting and rotating hydraulic cylinder and various components in an embodiment of the present invention.

[0031] Figure 5 Schematic diagram of the connection between the rotating shaft and various components in an embodiment of the present invention.

[0032] Figure 6 Schematic diagram of a slider and an arc-shaped slide groove in an embodiment of the present invention. DETAILED DESCRIPTION

[0033] In order to make the technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] like Figures 1 to 6As shown, the present invention provides an embedded lifting and horizontal opening hatch mechanism, comprising at least one set of hatch components, each set of hatch components comprising: an internal frame 1, a lifting and rotating hydraulic cylinder 2, a rotating arm 4, a rotating shaft 5, a first gear 3, a second gear 10, a transmission device 7, a hatch 6 and a gear anti-rotation rod 8;

[0035] The lifting and rotating hydraulic cylinder 2 includes a cylinder barrel and a piston rod, one end of the piston rod is arranged in the cylinder barrel; the cylinder barrel is fixed on the internal frame 1, the other end of the piston rod is fixedly connected to the first end of the rotating arm 4, and the second end of the rotating arm 4 is sleeved on the rotating shaft 5 and is rotatably connected to the rotating shaft 5;

[0036] The hatch 6 is fixedly connected to the top of the rotating shaft 5;

[0037] The first gear 3 is arranged on the piston rod and is rotatably connected to the piston rod; the second gear 10 is fixedly connected to the rotating shaft 5, the first gear 3 and the second gear 10 are at the same height and have the same outer diameter and number of teeth, and the first gear 3 and the second gear 10 are connected via a transmission device 7;

[0038] The top of the gear anti-rotation rod 8 is connected to the first gear 3 , and the bottom of the gear anti-rotation rod 8 is fixedly connected to the built-in frame 1 for fixing the first gear 3 .

[0039] In the technical solution of the present invention, the piston rod of the lifting and rotating hydraulic cylinder 2 is in the cylinder barrel, and can move up and down, and can also rotate. When the hatch needs to be opened, the piston rod of the lifting and rotating hydraulic cylinder 2 rises, driving the hatch assembly to rise to the surface of the protruding application equipment first. Then the piston rod rotates. Since the piston rod of the lifting and rotating hydraulic cylinder 2 is fixedly connected to the rotating arm 4, the piston rod drives the rotating arm 4 to rotate at this time, and the second end of the rotating arm 4 is sleeved with a rotating shaft 5, and the hatch 6 and the second gear 10 are fixed on the rotating shaft 5, so the rotating arm 4 will drive the rotating shaft, the hatch and the second gear to rotate together. However, since the transmission device 7 is connected between the first gear and the second gear, the second gear 10 will be transmitted to the first gear through the transmission device 7 while rotating with the swing arm 4, and since the first gear is fixed to the internal frame 1 through the gear anti-rotation rod 8, the first gear will not rotate, so the second gear will rotate in the opposite direction to the rotation direction of the swing arm 4; and since the second gear and the rotating shaft 5, and the cabin door 6 and the rotating shaft are fixedly connected, the second gear will drive the rotating shaft 5 to rotate, and at the same time drive the cabin door 6 to rotate in the opposite direction to the rotation direction of the swing arm 4. It can be seen that when the swing arm 4 rotates a certain angle, a certain transmission displacement is generated between the first gear 3 and the transmission device 7, and the outer diameter and the number of teeth of the first gear and the second gear are equal, so the transmission displacement causes the second gear to drive the cabin door to rotate by an equal angle, so the cabin door rotation angle is equal to the swing arm rotation angle; since the rotation direction of the second gear is opposite to the rotation direction of the swing arm, the cabin door rotation direction is opposite to the rotation direction of the swing arm. Therefore, during operation, the hatch rotates with the rotating arm and also rotates in the opposite direction with the second gear, so the movement direction of the hatch relative to the application equipment does not change, and the hatch moves horizontally to the outside of the hatch to achieve parallel opening of the hatch, such as Figure 2 As shown, the space occupied by the connecting rod assembly when working and the space required for the hatch door to flip can be effectively saved, and the space occupied by the hatch door mechanism inside the application equipment is reduced.

[0040] When the hatch needs to be closed, the piston rod of the lifting and rotating hydraulic cylinder 2 rotates first, so that the hatch moves horizontally to the top of the hatch, and then the piston rod descends, so that the hatch is embedded in the hatch of the application equipment, and the outer surface of the hatch 6 is aligned with the outer surface 100 of the application equipment, and the hatch is closed. Figure 3 The working principle of each component when the door is closed is the same as when it is open, so it will not be described in detail here.

[0041] In the technical solution of the present invention, a variety of implementation methods can be used to implement the above-mentioned embedded lifting and horizontal opening hatch door mechanism. The technical solution of the present invention will be described in detail below by taking one or several implementation methods as examples.

[0042] For example, preferably, in a specific embodiment of the present invention, Figure 4As shown, the first end of the rotating arm 4 can be set on the top of the piston rod of the lifting and rotating cylinder 2, and connected to the piston rod through a key 11; the first gear 3 can be set on the piston rod below the first end of the rotating arm 4, and rotatably connected to the piston rod through a bearing 9.

[0043] For another example, preferably, in a specific embodiment of the present invention, Figure 5 As shown, the hatch 6 and the rotating shaft 5 can be connected via a key 11;

[0044] The second end of the rotating arm 4 is sleeved on the rotating shaft 5 below the cabin door 6, and is rotatably connected to the rotating shaft 5 through a bearing 9;

[0045] The second gear 10 is disposed on the rotating shaft 5 below the second end of the rotating arm 4 and is connected to the rotating shaft 5 via a key 11 .

[0046] In addition, as an example, in a preferred embodiment of the present invention, Figure 5 As shown, the top of the rotating shaft 5 is provided with an upper limit block 51, which is arranged in a limit groove reserved on the hatch 6; the bottom of the rotating shaft 5 is provided with a lower limit device 52. The upper limit block 51 can limit the rotating shaft 5 in the vertical direction to prevent the rotating shaft 5 from falling under the action of gravity; the lower limit device 52 is provided to limit the second end of the rotating arm 4 and the second gear 10 to prevent the second end of the rotating arm 4 and the second gear from sliding up and down or falling off the rotating shaft 5.

[0047] Preferably, as an example, the lower limit device 52 can be an axle seat.

[0048] In addition, as an example, in a preferred specific embodiment of the present invention, the transmission device 7 can be a chain matching the first gear and the second gear.

[0049] For example, preferably, in a specific embodiment of the present invention, the transmission device 7 can be a toothed synchronous chain.

[0050] In addition, preferably, in another specific embodiment of the present invention, the transmission device 7 can also be a toothed synchronous belt matching the first gear and the second gear.

[0051] In addition, as an example, in a preferred embodiment of the present invention, Figure 6 As shown, the upper surface of the rotating arm 4 may be provided with a sliding block 41 , and the lower surface of the cabin door 6 may be provided with an arc-shaped sliding groove 61 matching the sliding block 41 , and the sliding block 41 may slide in the arc-shaped sliding groove 61 .

[0052] In the technical solution of the present invention, the shape of the arc-shaped slide groove is adapted to the movement trajectory of the rotating arm and the cabin door. When the rotating arm 4 and the cabin door 6 rotate simultaneously and in opposite directions, the slider 41 will slide in the arc-shaped slide groove 61, thereby guiding, supporting and limiting the rotation of the cabin door and the rotating arm, making the operation of the cabin door mechanism more reliable; in addition, the cabin door is supported at two points, which can effectively prevent the cabin door from being deformed due to long-term use and its own weight, making the overall structure more stable and reliable.

[0053] Preferably, as an example, the slider 41 may be a cylindrical structure.

[0054] Preferably, as an example, the slider 41 can also be a spherical embedded slider or a T-shaped embedded slider, etc., and the arc-shaped slide groove 61 can be a T-shaped groove. The spherical embedded slider or the T-shaped embedded slider can be embedded in the T-shaped groove and can slide in the T-shaped groove, thereby preventing the spherical embedded slider or the T-shaped embedded slider from escaping from the T-shaped groove.

[0055] In addition, in the technical solution of the present invention, the top of the gear anti-rotation rod 8 can be connected to the first gear 3 through a variety of specific implementation methods.

[0056] For example, as an example, the top of the gear anti-rotation rod 8 can be inserted between two gears of the first gear 3, so that the first gear 3 will not rotate.

[0057] For another example, as an example, the top of the gear anti-rotation rod 8 can be fixedly connected to the bottom of the first gear 3, so that the first gear 3 will not rotate.

[0058] In addition, as an example, in another specific embodiment of the present invention, the embedded lifting and opening door mechanism may be provided with one or more groups of door assemblies.

[0059] For example, preferably, in another specific embodiment of the present invention, the embedded lifting and opening hatch mechanism can be provided with four groups of hatch assemblies, and the four groups of hatch assemblies can be respectively arranged at the four corners of the square hatch of the application equipment. When the hatch is closed, the four hatches 6 in the four groups of hatch assemblies are flush with each other and are all flush with the outer surface 100 of the application equipment.

[0060] In the technical solution of the present invention, the four groups of door assemblies can work independently, either synchronously or asynchronously, and their operations can be non-interfering with each other, thereby effectively solving the problem that the traditional flip door mechanism has strict requirements for transmission synchronization on the same side, otherwise it is very easy to cause the door to twist and deform, and once a failure or jam occurs somewhere in the transmission process, it is also very easy to cause deformation or damage to other positions of the mechanism, thereby improving the reliability of the overall structure.

[0061] In summary, the embedded lifting and opening hatch door mechanism provided by the present invention can have the following beneficial effects:

[0062] (1) By adopting the follow-up mode of double gears and chains, the rotation angle of the hatch can be automatically adjusted when the hatch is opened, so that the hatch can be opened horizontally, thereby effectively reducing the space occupied by the hatch mechanism inside the application equipment. Except for the lifting and rotating hydraulic cylinder, there are no other redundant transmission devices and corresponding required reserved space, which minimizes the demand for installation space.

[0063] (2) Since each set of embedded lifting and opening door mechanisms works independently, interference between the doors during operation is prevented, thus ensuring the reliability of the structure.

[0064] (3) The hatch is opened and closed by a flat-opening door, and the height of the door protruding from the outside of the equipment is relatively small, so that the disturbance to the navigation of the application equipment is relatively small, thereby ensuring the safety of the navigation of the application equipment.

[0065] (4) By arranging a slider on the rotating arm and an arc-shaped slide groove on the hatch, the slider slides in the arc-shaped slide groove, which plays a role in guiding and limiting the movement of the hatch, making the operation more reliable. It can also play a supporting role for the hatch, so that the hatch can be supported at two points, thereby improving the stability and reliability of the structure.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An embedded lifting and opening hatch door mechanism, It is characterized in that include: At least one set of door assemblies, each set of door assemblies comprising: an internal frame, a lifting and rotating hydraulic cylinder, a rotating arm, a rotating shaft, a first gear, a second gear, a transmission device, a door and a gear anti-rotation rod; The lifting and rotating hydraulic cylinder comprises a cylinder barrel and a piston rod, one end of the piston rod is arranged in the cylinder barrel; the cylinder barrel is fixed on the internal frame, the other end of the piston rod is fixedly connected to the first end of the rotating arm, and the second end of the rotating arm is sleeved on the rotating shaft and is rotatably connected to the rotating shaft; The hatch is fixedly connected to the top of the rotating shaft; The first gear is arranged on the piston rod and is rotatably connected to the piston rod; the second gear is fixedly connected to the rotating shaft, the first gear and the second gear are at the same height and have the same outer diameter and number of teeth, and the first gear and the second gear are connected through a transmission device; The top of the gear anti-rotation rod is connected to the first gear, and the bottom of the gear anti-rotation rod is fixedly connected to the built-in frame for fixing the first gear.

2. The embedded lifting and opening hatch door mechanism according to claim 1, It is characterized in that The first end of the rotating arm is arranged on the top of the piston rod of the lifting and rotating hydraulic cylinder and is connected to the piston rod through a key; the first gear is arranged on the piston rod below the first end of the rotating arm and is rotatably connected to the piston rod through a bearing.

3. The embedded lifting and opening hatch door mechanism according to claim 1, It is characterized in that The door and the rotating shaft are connected via a key; The second end of the rotating arm is sleeved on the rotating shaft below the cabin door and is rotatably connected to the rotating shaft through a bearing; The second gear is arranged on the rotating shaft below the second end of the rotating arm and is connected to the rotating shaft through a key.

4. The embedded lifting and opening hatch door mechanism according to claim 1, It is characterized in that An upper limit block is arranged at the top end of the rotating shaft, and the upper limit block is arranged in a limit groove reserved on the cabin door; a lower limit device is arranged at the bottom end of the rotating shaft.

5. The embedded lifting and opening hatch door mechanism according to claim 1, It is characterized in that The transmission device is a chain matched with the first gear and the second gear.

6. The embedded lifting and opening hatch door mechanism according to claim 1, It is characterized in that The transmission device is a toothed synchronous belt matched with the first gear and the second gear.

7. The embedded lifting and opening hatch door mechanism according to claim 1, It is characterized in that The upper surface of the rotating arm is provided with a sliding block, and the lower surface of the cabin door is provided with an arc-shaped sliding groove matching the sliding block.

8. The embedded lifting and opening hatch door mechanism according to claim 7, It is characterized in that The sliding block is a cylindrical structure.

9. The embedded lifting and opening hatch door mechanism according to claim 7, It is characterized in that The slider is a spherical embedded slider or a T-shaped embedded slider, the arc-shaped sliding groove is a T-shaped groove, and the spherical embedded slider or the T-shaped embedded slider is embedded in the T-shaped groove.

10. The embedded lifting and opening hatch door mechanism according to claim 1, It is characterized in that The embedded lifting and opening horizontal door mechanism is provided with four groups of door components.

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