Ramp door closure device

Abstract

The utility model belongs to the technical field of air door, concretely relates to a ramp air door closing device, including base surface, the upper end of base surface is provided with door frame, the inboard left side of door frame is hinged with the always closed door through hinged axle no.

Description

Technical Field

[0001] This utility model belongs to the field of damper technology, specifically relating to a ramp damper closing device. Background Technology

[0002] Inclined ramp ventilation door closing devices are key equipment in ventilation systems for underground spaces such as mines and tunnels. They are mainly used to control airflow and ensure that the doors close automatically under specific conditions. They primarily include: mechanical interlocking devices, pneumatic interlocking devices, and electric pneumatic control devices.

[0003] The utility model patent with patent authorization announcement number CN220849744U discloses an anti-pinch door, which includes a support frame, a blocking mechanism inside the support frame, and an adjustment mechanism inside the support frame. The adjustment mechanism includes a drive component and an anti-pinch component. The drive component is located on the inner wall of the support frame, and the anti-pinch component is located on the inner wall of the support frame. The blocking mechanism includes a plug-in sleeve.

[0004] However, the existing inclined ramp damper closing devices also have certain defects. Although the existing inclined ramp damper closing devices mostly use hydraulic cylinders, hinge plates and other structures to complete the opening and closing of normally open doors, the friction between the cylinder body and the telescopic end can easily cause the hydraulic cylinder to have large extension and retraction resistance. Summary of the Invention

[0005] The purpose of this utility model is to provide a ramp door closing device, which solves the problem that existing ramp door closing devices, although mostly using hydraulic cylinders, hinge plates and other structures to open and close normally open doors, are prone to large resistance to hydraulic cylinder extension and retraction due to the friction between the materials of the cylinder body and the telescopic end.

[0006] To achieve the above objectives, this utility model provides a ramp door closing device, including a base surface, a door frame at the upper end of the base surface, a normally closed door hinged to the inner left side of the door frame via a hinge shaft one, a handle one fixedly connected to the front of the normally closed door, a limiting plate one fixedly connected to the inner top of the door frame, the limiting plate one contacting the normally closed door, a normally open door hinged to the inner right side wall of the door frame via a hinge shaft two, a handle two fixedly connected to the front of the normally open door, a limiting plate two fixedly connected to the inner top of the door frame, the limiting plate two contacting the normally open door, a guide mechanism jointly provided on the normally open door and the base surface, and a closing mechanism jointly provided on the normally open door and the door frame.

[0007] The principle of this utility model is as follows: by pulling the second handle, the normally open door is deflected, and the normally open door and the door frame are hinged through the second hinge shaft. In conjunction with the hinge relationship between the hydraulic cylinder and the first and second hinge plates, the normal deflection of the normally open door can be guaranteed. When the normally open door deflects, it can drive the guide block to move, so that the connecting rod drives the slider to slide along the inner wall of the slide groove to ensure a good deflection guidance effect. Under the deformation of the first spring, the guide block can be pushed to drive the slider to always contact the inner wall of the slide groove to ensure a good fit and guidance effect. When the telescopic end is driven by the hydraulic cylinder to move and reset, the normally open door can be deflected and reset. When the electromagnet is powered on and generates a strong magnetic force, it can be used to magnetically attract the magnetic plate, so as to pull the magnetic plate to move stably upward along the surface of the guide rod and drive the plug to disengage from the guide hole. The second spring deforms, and finally the guide tube is in a conductive state, guiding the lubricating oil to contact the oil suction ring and lubricate the hydraulic cylinder to ensure the good telescopic characteristics of the hydraulic cylinder.

[0008] The beneficial effects of this utility model are as follows: This solution, through the setting of normally open and normally closed doors, can ensure the integrity of the inclined ramp damper. Under the action of the slide groove and slider, the normally open door can be deflected and guided to ensure the opening and closing stability of the normally open door. With the cooperation of spring one, guide groove and other structures, the sliding block can be fitted and guided. Through the action of hydraulic cylinder, hinge plate two and other structures, the normally open door can be opened and closed well. Under the action of electromagnet, magnetic plate, spring two and other structures, the plug can be disengaged from the guide hole, thereby making the guide pipe in a conductive state, lubricating the hydraulic cylinder and ensuring the good extension and contraction characteristics of the hydraulic cylinder.

[0009] Furthermore, the guiding mechanism includes a slide groove, with a slide groove formed at the upper end of the base surface and a guide groove formed on the surface of the normally open door. A guide block is slidably connected to the inner wall of the guide groove, and a connecting rod is fixedly connected to the lower end of the guide block. A slider is fixedly connected to the lower end of the connecting rod, and the slider is slidably connected to the slide groove. Through the action of the slide groove, slider, and other structures, the normally open door can be deflected and guided to ensure the deflection stability of the normally open door.

[0010] Furthermore, a spring is fixedly connected to the upper end of the guide block, and the other end of the spring is fixedly connected to the normally open door. The guide block ensures the stable movement of the connecting rod.

[0011] Furthermore, the closing mechanism includes a hinge plate one, which is fixedly connected to the back of the normally open door. A hinge plate two is fixedly connected to the back of the door frame. A hydraulic cylinder is hinged to the hinge plate two via a hinge shaft three. The telescopic end of the hydraulic cylinder is hinged to the hinge plate one via a hinge shaft four. An oil suction ring is fixedly connected to the end face of the hydraulic cylinder, and the oil suction ring is slidably connected to the telescopic end of the hydraulic cylinder. A fixing plate is fixedly connected to the back of the door frame. An oil storage box is fixedly connected to the lower end of the fixing plate. A guide rod is fixedly connected to the bottom inner side of the oil storage box. A magnetic plate is slidably sleeved on the outer side of the guide rod. The magnetic plate is slidably connected to the oil storage box. A spring two is fixedly connected to the lower end of the magnetic plate. The other end of the spring two is fixedly connected to the oil storage box. Through the action of the hydraulic cylinder, hinge plate two, and other structures, the normally open door can be driven to deflect and open / close normally. With the cooperation of the oil storage box, oil suction ring, and other structures, the hydraulic cylinder can be lubricated to ensure good telescopic characteristics.

[0012] Furthermore, a guide pipe is fixedly connected to the inner wall of the oil storage box. The guide pipe is located directly above the oil suction ring. The guide pipe can guide the lubricating oil.

[0013] Furthermore, a plug is fixedly connected to the lower end of the magnetic plate, and the plug is slidably connected to the guide hole of the oil storage box. The oil storage box can be sealed by the plug.

[0014] Furthermore, an electromagnet is fixedly installed on the top inner side of the oil storage box. The electromagnet is located directly above the magnetic plate, and the magnetic plate can be magnetically attracted by the electromagnet. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure of the inclined ramp damper closing device according to an embodiment of the present invention; Figure 2 This invention relates to a ramp door closing device. Figure 1 A schematic diagram of the internal structure of a normally open door; Figure 3 This invention relates to a ramp door closing device. Figure 1 Rear view; Figure 4 This invention relates to a ramp door closing device. Figure 1 Side sectional view; Figure 5 This invention relates to a ramp door closing device. Figure 2 Enlarged view of point A; Figure 6 This invention relates to a ramp door closing device. Figure 4 Enlarged view of the oil storage box.

[0016] The following detailed description illustrates the specific implementation method: The reference numerals in the accompanying drawings of the instruction manual include: base surface 1, door frame 2, normally closed door 3, handle one 4, limit plate one 5, normally open door 6, handle two 7, limit plate two 8, guide mechanism 9, closing mechanism 10, slide groove 91, guide groove 92, guide block 93, spring one 94, connecting rod 95, slider 96, hinge plate one 100, hinge plate two 101, hydraulic cylinder 102, oil suction ring 103, fixing plate 104, oil storage box 105, guide pipe 106, guide rod 107, magnetic plate 108, plug 109, spring two 110, electromagnet 111. Detailed Implementation

[0017] The implementation examples are basically as follows Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, this embodiment provides a ramp door closing device, including a base surface 1, a door frame 2 at the upper end of the base surface 1, a normally closed door 3 hinged to the inner left side of the door frame 2 via a hinge shaft 1, a handle 4 fixedly connected to the front of the normally closed door 3, a limiting plate 5 fixedly connected to the inner top of the door frame 2, the limiting plate 5 contacting the normally closed door 3, and a normally open door 6 hinged to the inner right side wall of the door frame 2 via a hinge shaft 2, a handle 7 fixedly connected to the front of the normally open door 6, a limiting plate 8 fixedly connected to the inner top of the door frame 2, the limiting plate 8 contacting the normally open door 6.

[0018] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, a guide mechanism 9 is provided on both the normally open door 6 and the base surface 1. The guide mechanism 9 includes a slide groove 91. The upper end of the base surface 1 is provided with a slide groove 91, and the surface of the normally open door 6 is provided with a guide groove 92. A guide block 93 is slidably connected to the inner wall of the guide groove 92. A spring 94 is fixedly connected to the upper end of the guide block 93. The other end of the spring 94 is fixedly connected to the normally open door 6. The guide block 93 ensures the stable movement of the connecting rod 95. A connecting rod 95 is fixedly connected to the lower end of the guide block 93. A slider 96 is fixedly connected to the lower end of the connecting rod 95. The slider 96 is slidably connected to the slide groove 91. Through the function of the slide groove 91, slider 96 and other structures, the normally open door 6 can be deflected and guided to ensure the deflection stability of the normally open door 6.

[0019] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6As shown, a closing mechanism 10 is jointly provided on the normally open door 6 and the door frame 2. The closing mechanism 10 includes a hinge plate 100. The hinge plate 100 is fixedly connected to the back of the normally open door 6, and a hinge plate 101 is fixedly connected to the back of the door frame 2. A hydraulic cylinder 102 is hinged to the hinge plate 101 via a hinge shaft 3. The telescopic end of the hydraulic cylinder 102 is hinged to the hinge plate 100 via a hinge shaft 4. An oil suction ring 103 is fixedly connected to the end face of the hydraulic cylinder 102, and the oil suction ring 103 is slidably connected to the telescopic end of the hydraulic cylinder 102. A fixing plate 104 is fixedly connected to the back of the door frame 2, and a storage device is fixedly connected to the lower end of the fixing plate 104. The oil reservoir 105 has a guide rod 107 fixedly connected to its inner bottom. A magnetic plate 108 is slidably sleeved on the outer side of the guide rod 107. The magnetic plate 108 is slidably connected to the oil reservoir 105. A spring 110 is fixedly connected to the lower end of the magnetic plate 108. The other end of the spring 110 is fixedly connected to the oil reservoir 105. Through the action of the hydraulic cylinder 102, the hinge plate 101, and other structures, the normally open door 6 can be driven to deflect and open and close normally. With the cooperation of the oil reservoir 105, the oil suction ring 103, and other structures, the hydraulic cylinder 102 can be lubricated to ensure good extension and retraction characteristics of the hydraulic cylinder 102.

[0020] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 As shown, a guide pipe 106 is fixedly connected to the inner wall of the oil storage box 105. The guide pipe 106 is located directly above the oil suction ring 103. The guide pipe 106 can guide the lubricating oil. A plug 109 is fixedly connected to the lower end of the magnetic plate 108. The plug 109 is slidably connected to the guide hole of the oil storage box 105. The plug 109 can be used to seal the oil storage box 105. An electromagnet 111 is fixedly installed on the top inner side of the oil storage box 105. The electromagnet 111 is located directly above the magnetic plate 108. The electromagnet 111 can be used to magnetically attract the magnetic plate 108.

[0021] The specific implementation process of this utility model is as follows: By pulling the handle 2 7, the normally open door 6 is deflected. The normally open door 6 is hinged to the door frame 2 through the hinge shaft 2. With the hinge relationship between the hydraulic cylinder 102 and the hinge plate 100 and the hinge plate 2 101, the normal deflection of the normally open door 6 can be guaranteed. When the normally open door 6 deflects, the guide block 93 can be moved, so that the connecting rod 95 drives the slider 96 to slide along the inner wall of the slide groove 91 to ensure a good deflection guidance effect. Under the deformation action of the spring 1 94, the guide block 93 can be pushed to drive the slider 96 to always contact the inner wall of the slide groove 91 to ensure a good fit and guidance effect. When the telescopic end is driven to reset by the hydraulic cylinder 102, the normally open door 6 can be deflected and reset. When the electromagnet 111 is powered on and generates a strong magnetic force, it can magnetically attract the magnetic plate 108, so as to pull the magnetic plate 108 to move stably upward along the surface of the guide rod 107, and drive the plug 109 to disengage from the guide hole. The second spring 110 deforms, and finally the guide pipe 106 is in a conductive state, so as to guide the lubricating oil and make the lubricating oil contact with the oil suction ring 103 to lubricate the hydraulic cylinder 102, so as to ensure the good telescopic characteristics of the hydraulic cylinder 102.

[0022] This solution, through the design of normally open door 6 and normally closed door 3, ensures the integrity of the ramp damper. Under the action of slide groove 91 and slider 96, normally open door 6 can be deflected and guided to ensure the opening and closing stability of normally open door 6. With the cooperation of spring 94, guide groove 92 and other structures, the contact and guiding effect of slider 96 can be ensured. Through the action of hydraulic cylinder 102, hinge plate 101 and other structures, the normal opening and closing effect of normally open door 6 can be ensured. Under the action of electromagnet 111, magnetic plate 108, spring 110 and other structures, the plug 109 can be disengaged from the guide hole, thereby making the guide pipe 106 in a conductive state to lubricate the hydraulic cylinder 102 and ensure the good extension and contraction characteristics of hydraulic cylinder 102.

[0023] It should be noted in advance that, in this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0024] The above descriptions are merely embodiments of the present invention, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A ramp ventilation door closing device, comprising a base surface, characterized in that: A door frame is provided at the upper end of the base surface. A normally closed door is hinged to the inner left side of the door frame via a hinge shaft one. A handle one is fixedly connected to the front of the normally closed door. A limit plate one is fixedly connected to the inner top of the door frame. The limit plate one is in contact with the normally closed door. A normally open door is hinged to the inner right side wall of the door frame via a hinge shaft two. A handle two is fixedly connected to the front of the normally open door. A limit plate two is fixedly connected to the inner top of the door frame. The limit plate two is in contact with the normally open door. A guide mechanism is provided together on the normally open door and the base surface. A closing mechanism is provided together on the normally open door and the door frame.

2. The inclined ramp ventilation door closing device according to claim 1, characterized in that: The guiding mechanism includes a slide groove. The upper end of the base surface is provided with a slide groove, and the surface of the normally open door is provided with a guide groove. A guide block is slidably connected to the inner wall of the guide groove. A connecting rod is fixedly connected to the lower end of the guide block. A slider is fixedly connected to the lower end of the connecting rod. The slider is slidably connected to the slide groove.

3. The inclined ramp ventilation door closing device according to claim 2, characterized in that: A spring is fixedly connected to the upper end of the guide block, and the other end of the spring is fixedly connected to the normally open door.

4. The inclined ramp ventilation door closing device according to claim 1, characterized in that: The closing mechanism includes a hinge plate one, which is fixedly connected to the back of the normally open door. A hinge plate two is fixedly connected to the back of the door frame. A hydraulic cylinder is hinged to the hinge plate two via a hinge shaft three. The telescopic end of the hydraulic cylinder is hinged to the hinge plate one via a hinge shaft four. An oil suction ring is fixedly connected to the end face of the hydraulic cylinder, and the oil suction ring is slidably connected to the telescopic end of the hydraulic cylinder. A fixing plate is fixedly connected to the back of the door frame. An oil storage box is fixedly connected to the lower end of the fixing plate. A guide rod is fixedly connected to the bottom inner side of the oil storage box. A magnetic plate is slidably sleeved on the outer side of the guide rod. The magnetic plate is slidably connected to the oil storage box. A spring two is fixedly connected to the lower end of the magnetic plate, and the other end of the spring two is fixedly connected to the oil storage box.

5. The inclined ramp ventilation door closing device according to claim 4, characterized in that: A guide pipe is fixedly connected to the inner wall of the oil storage box, and the guide pipe is located directly above the oil suction ring.

6. The inclined ramp ventilation door closing device according to claim 4, characterized in that: A plug is fixedly connected to the lower end of the magnetic plate, and the plug is slidably connected to the guide hole of the oil storage box.

7. The inclined ramp ventilation door closing device according to claim 4, characterized in that: An electromagnet is fixedly installed on the top inner side of the oil storage box, and the electromagnet is located directly above the magnetic plate.

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