A sealing baffle mechanism for tunnel protection door

Abstract

The utility model provides a sealing baffle mechanism for a tunnel protection door, comprising a mounting frame and a support plate, wherein the number of the support plates is two, and the support plates extend in the left-right direction, the positions of the two support plates correspond to each other up and down, and the opposite ends of the two support plates are fixedly connected with dust baffles; the mounting frame is arranged between the two support plates, and a spacing adjustment mechanism is arranged inside the mounting frame, and the upper and lower ends of the spacing adjustment mechanism are respectively fixedly connected to the adjacent surfaces of the adjacent support plates, and the spacing adjustment mechanism is used to adjust the spacing between the two support plates; the left and right side surfaces of the mounting frame are fixedly connected with connecting frames, and the two connecting frames are used to be fixedly connected to the tunnel protection door, and the sealing baffle mechanism for the tunnel protection door can seal the upper and lower ends of the tunnel protection door, thereby preventing dust and humid air from entering.

Description

Technical Field

[0001] The utility model relates to the field of tunnel protection doors, in particular to a sealing baffle mechanism used for tunnel protection doors. Background Art

[0002] Tunnel protection doors are generally used in railway tunnels, such as cross passages, repeater stations, substations and other caverns. They are a special type of protection door designed to resist the air pressure caused by trains traveling in the tunnel, so that the internal equipment is intact and not harmed by air pressure shock waves.

[0003] The existing tunnel protection door is generally composed of a door frame and a single door installed on the door frame. In order to facilitate the opening and closing of the protection door, a certain gap is inevitably required between the door frame and the single door. Tunnels are mostly located underground or in mountains. The passage of vehicles and trains will bring up a large amount of dust and polluted gases, which can easily enter the cavern through the gaps. At the same time, the air underground and in the mountains is relatively humid, and humid air will also enter the cavern through the gaps. Both situations will affect the air quality and equipment operation in the cavern. Utility Model Content

[0004] In order to solve the problem of a gap between a door frame and a single door in the background art, the utility model proposes a sealing baffle mechanism for a tunnel protection door.

[0005] The technical solution of the utility model is: comprising a mounting frame and a supporting plate,

[0006] There are two support plates, and the support plates extend in the left-right direction. The positions of the two support plates correspond to each other, and the opposite ends of the two support plates are fixedly connected with dust baffles.

[0007] The mounting frame is arranged between the two support plates, and a spacing adjustment mechanism is arranged inside the mounting frame, and the upper and lower ends of the spacing adjustment mechanism are respectively fixedly connected to the adjacent surfaces of the adjacent support plates, and the spacing adjustment mechanism is used to adjust the spacing between the two support plates;

[0008] The left and right sides of the mounting frame are both fixedly connected with connecting frames, and the two connecting frames are used for fixedly connecting with the tunnel protection door.

[0009] Preferably, the spacing adjustment mechanism includes a rack, a slide groove extending in the up and down directions is provided inside the mounting frame, two racks extending in the up and down directions are slidably provided inside the slide groove, and the two racks are arranged at left and right intervals, a mounting groove is provided on the rear side surface of the mounting frame, the mounting groove is connected with the slide groove, a rotating shaft extending in the front and rear directions is rotatably provided inside the mounting groove, the front end of the rotating shaft passes through the slide groove and rotates to pass through the front side surface of the mounting frame, a gear is fixedly sleeved on the rotating shaft, the gear is located between the two racks, and the two racks are meshed with the gears, the opposite ends of the two racks are fixedly connected to a support rod, and the support rods extend in the up and down directions, the ends of the two support rods away from the mounting frame are fixedly connected to adjacent surfaces of adjacent support plates, the front end of the rotating shaft is fixedly connected to a turntable, and a rotation locking mechanism is provided on the turntable, and the rotation locking mechanism is used to lock the rotation of the turntable.

[0010] Preferably, the rotation locking mechanism includes a slot, which is opened on the rear side of the turntable and is transparent from front to back. A pin extending in the front-to-back direction is slidably provided inside the slot. A plurality of locking holes are opened on the front side of the mounting frame, and the locking holes are evenly spaced around the rotating shaft. The slot can correspond to the position of any locking hole front to back during rotation, and the rear end of the pin is plugged into the interior of an adjacent locking hole.

[0011] Preferably, the slot includes a guide slot, the guide slot is provided on the rear side of the turntable, a plug hole is provided on the front wall of the guide slot, and the inner diameter of the plug hole is smaller than the inner diameter of the guide slot;

[0012] The latch includes a plug post, the front end of which is fixedly connected to a connecting post, the outer surface of the connecting post is plugged into the interior of the socket, a spring is fixedly connected between the front side of the locking plug post and the front wall of the guide slot, and the spring is sleeved on the connecting post.

[0013] Preferably, a handle is fixedly connected to the front end of the connecting column, and the handle is located outside the turntable.

[0014] Preferably, a telescopic rod is fixedly connected between the support plates, and the telescopic rod and the spacing adjustment mechanism are parallel to each other.

[0015] Preferably, the two dustproof baffles are fixedly connected to opposite ends thereof with sealing cushions, and the sealing cushions extend in the left-right direction.

[0016] The utility model has the advantages that the positions of the two dustproof baffles can be adjusted to seal the gaps at the upper and lower ends of the tunnel protection door, thereby preventing the entry of dust and humid air, thereby enhancing the sealing of the tunnel protection door. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the main structure of Example 1;

[0019] Figure 2 for Figure 1 A right-side partial cross-sectional structural schematic diagram;

[0020] Figure 3 for Figure 2 A is an enlarged structural diagram of FIG.

[0021] In the figure, 1 is a mounting frame, 2 is a connecting frame, 3 is a spacing adjustment mechanism, 31 is a rotating shaft, 32 is a gear, 33 is a rack, 34 is a supporting rod, 4 is a supporting plate, 5 is a dust baffle, 6 is a sealing cushion, 7 is a telescopic rod, 8 is a turntable, 9 is a rotation locking mechanism, 91 is a locking socket, 92 is a guide slot, 93 is a locking column, 94 is a connecting column, 95 is a spring, and 96 is a handle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1: This embodiment aims to propose a sealing baffle mechanism for a tunnel protection door.

[0024] according to Figures 1 to 3 As shown, it is connected to the tunnel protection door through a mounting frame 1. Specifically, the left and right sides of the mounting frame 1 are fixedly connected with connecting frames 2. Bolt connection holes are opened on the two connecting frames 2. The installer connects the connecting frame 2 to the tunnel protection door through the bolt connection holes and bolts. During the connection process, the installer should make the mounting frame 1 positioned on the tunnel protection door and centered.

[0025] A spacing adjustment mechanism 3 is provided inside the mounting frame 1, and support plates 4 are fixedly connected to the upper and lower ends of the spacing adjustment mechanism 3, and the support plates 4 extend in the left-right direction. The positions of the two support plates 4 correspond to each other up and down, and dust baffles 5 are fixedly connected to the opposite ends of the two support plates 4, and sealing cushions 6 are fixedly connected to the opposite ends of the two dust baffles 5. The sealing cushions 6 can be made of rubber material, and the sealing cushions 6 extend in the left-right direction. A telescopic rod 7 is fixedly connected between the support plates 4, and the telescopic rod 7 is parallel to the spacing adjustment mechanism 3. The spacing adjustment mechanism 3 adjusts the spacing between the two support plates 4, so that the two support plates 4 are away from each other, so that the dust baffles 5 block the gaps at the upper and lower ends of the tunnel protection door to prevent dust and humid air from entering.

[0026] The spacing adjustment mechanism 3 includes a rack 33, a slide groove extending in the up-down direction is provided inside the mounting frame 1, and two racks 33 extending in the up-down direction are slidably provided inside the slide groove, and the two racks 33 are arranged at intervals left and right. A mounting groove is provided on the rear side surface of the mounting frame 1, and the mounting groove is connected to the slide groove. A rotating shaft 31 extending in the front-to-back direction is rotatably provided inside the mounting groove. The front end of the rotating shaft 31 passes through the slide groove and rotates out of the front side surface of the mounting frame 1. A gear 32 is fixedly sleeved on the rotating shaft 31, and the gear 32 is located between the two racks 33, and the two racks 33 are meshed with the gear 32. The opposite ends of the two racks 33 are fixedly connected to a support rod 34, and the support rods 34 extend in the up-down direction. The ends of the two support rods 34 away from the mounting frame 1 are fixedly connected to the adjacent surfaces of the adjacent support plates 4. A rotating disk 8 is fixedly connected to the front end of the rotating shaft 31, and a rotating locking mechanism 9 is provided on the rotating disk 8. The rotating locking mechanism 9 is used to lock the rotation of the rotating disk 8.

[0027] The specific manner in which the rotation locking mechanism 9 locks the rotation of the turntable 8 is that the rotation locking mechanism 9 includes a slot, which is opened on the rear side of the turntable 8 and is transparent from front to back, and includes a guide slide 92, which is opened on the rear side of the turntable 8, and a plug hole is opened on the front wall of the guide slide 92, and the inner diameter of the plug hole is smaller than the inner diameter of the guide slide 92;

[0028] The interior of the slot is slidably provided with a latch extending in the front-to-back direction, the latch comprising a plug post 93, the front end of the plug post 93 is fixedly connected to a connecting post 94, the outer surface of the connecting post 94 is plugged into the interior of the socket, a spring 95 is fixedly connected between the front side surface of the locking plug post 93 and the front wall of the guide slot 92, the spring 95 is sleeved on the connecting post 94, a plurality of locking sockets 91 are provided on the front side surface of the mounting frame 1, and the locking sockets 91 are evenly spaced around the rotating shaft 31, the slot can correspond to the position of any locking socket 91 in the front and back direction during the rotation process, the rear end of the latch is plugged into the interior of the adjacent locking socket 91, the front end of the connecting post 94 is fixedly connected to a handle 96, and the handle 96 is located on the outside of the turntable 8.

[0029] Working principle: the staff first installs the mounting frame 1 on the tunnel protection door through the connecting frame 2. When the tunnel protection door needs to be closed, the staff pulls the handle 96 forward, the handle 96 drives the connecting column 94 forward, the connecting column 94 drives the locking column 93 forward, the locking column 93 is disengaged from the locking socket 91, and the locking column 93 compresses the spring 95 when it moves forward. Then the staff rotates the turntable 8, the rotation of the turntable 8 drives the rotating shaft 31 to rotate, the rotation of the rotating shaft 31 drives the gear 32 to rotate, the rotation of the gear 32 causes the two racks 33 to move away from each other, and the racks 33 push the support plates 4 away from each other through the support rods 34. The support plates 4 move away from each other and drive the dust baffles 5 away from each other, so that the gaps at the upper and lower ends of the tunnel protection door can be sealed, thereby preventing dust from entering. When sealing, the sealing cushion 6 contacts the ground or ceiling and deforms, thereby making the seal more thorough and preventing the entry of dust and humid air.

[0030] During the rotation process, the slot corresponds to the front and back position of a corresponding locking hole 91. The staff releases the handle 96, and under the action of the elastic potential energy of the spring 95, the locking column 93 moves backward, and the locking column 93 moves backward and is inserted into the interior of the locking hole 91, thereby locking the turntable 8.

[0031] When the tunnel protection door needs to be opened, in order not to affect the opening and closing of the protection door, the staff can pull the handle 96 again to unlock the turntable 8, and then rotate the turntable 8 in the reverse direction. The reverse rotation of the turntable 8 drives the shaft 31 to rotate in the reverse direction, and the reverse rotation of the shaft 31 drives the gear 32 to rotate in the reverse direction, so that the two racks 33 are close to each other, so that the dust baffles 5 are close to each other, and the sealing cushion 6 is out of contact with the ground or the ceiling.

[0032] Embodiment 2: A sealing baffle mechanism for a tunnel protection door, the difference between this embodiment and embodiment 1 is that the slot in this embodiment is an equal-diameter slot with equal inner diameter along its length direction, and the latch in this embodiment is an equal-diameter rod structure. The other structures are the same as those in embodiment 1.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is limited by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A sealing baffle mechanism for a tunnel protection door, characterized in that: It comprises a mounting frame (1) and a supporting plate (4); The number of the support plates (4) is two, and the support plates (4) extend in the left-right direction. The positions of the two support plates (4) correspond to each other vertically, and the opposite ends of the two support plates (4) are fixedly connected with dust baffles (5); The mounting frame (1) is arranged between two support plates (4), and a spacing adjustment mechanism (3) is provided inside the mounting frame (1). The upper and lower ends of the spacing adjustment mechanism (3) are respectively fixedly connected to adjacent surfaces of adjacent support plates (4), and the spacing adjustment mechanism (3) is used to adjust the spacing between the two support plates (4); The left and right sides of the mounting frame (1) are both fixedly connected to connecting frames (2), and the two connecting frames (2) are used to be fixedly connected to the tunnel protection door.

2. The sealing baffle mechanism for a tunnel protection door according to claim 1 is characterized in that: The spacing adjustment mechanism (3) comprises a rack (33); a slide groove extending in the up-down direction is provided inside the mounting frame (1); two racks (33) extending in the up-down direction are slidably provided inside the slide groove, and the two racks (33) are spaced apart from each other. A mounting groove is provided on the rear side of the mounting frame (1), the mounting groove is connected to the slide groove, a rotating shaft (31) extending in the front-to-back direction is rotatably provided inside the mounting groove, the front end of the rotating shaft (31) passes through the slide groove and rotates out of the front side of the mounting frame (1), a gear (32) is fixedly sleeved on the rotating shaft (31), the gear (32) is located between two racks (33), and the two racks (33) are meshed and connected with the gear (32); The ends of the two racks (33) facing away from each other are fixedly connected to support rods (34), and the support rods (34) extend in the up-down direction, and the ends of the two support rods (34) away from the mounting frame (1) are fixedly connected to adjacent surfaces of adjacent support plates (4); A rotating disk (8) is fixedly connected to the front end of the rotating shaft (31), and a rotation locking mechanism (9) is provided on the rotating disk (8). The rotation locking mechanism (9) is used to lock the rotation of the rotating disk (8).

3. A sealing baffle mechanism for a tunnel protection door according to claim 2, characterized in that : The rotation locking mechanism (9) includes a slot, the slot is opened on the rear side of the turntable (8), and the slot is transparent to the front and rear, the interior of the slot is provided with a latch extending in the front-to-rear direction; A plurality of locking sockets (91) are provided on the front side of the mounting frame (1), and the locking sockets (91) are evenly spaced around the rotating shaft (31). During the rotation process, the slot can correspond to the position of any locking socket (91) in front and back, and the rear end of the latch is plugged into the inside of an adjacent locking socket (91).

4. The sealing baffle mechanism for a tunnel protection door according to claim 3 is characterized in that: The slot comprises a guide slot (92), the guide slot (92) being provided on the rear side of the turntable (8), and a plug hole being provided on the front wall of the guide slot (92), wherein the inner diameter of the plug hole is smaller than the inner diameter of the guide slot (92); The latch comprises an insertion column (93), the front end of the insertion column (93) is fixedly connected to a connecting column (94), the outer surface of the connecting column (94) is plugged into the inside of the insertion hole, and a spring (95) is fixedly connected between the front side surface of the locking insertion column (93) and the front wall of the guide slide groove (92), and the spring (95) is sleeved on the connecting column (94).

5. The sealing baffle mechanism for a tunnel protection door according to claim 4 is characterized in that: A handle (96) is fixedly connected to the front end of the connecting column (94), and the handle (96) is located outside the rotating disk (8).

6. The sealing baffle mechanism for a tunnel protection door according to claim 1, characterized in that: A telescopic rod (7) is fixedly connected between the support plates (4), and the telescopic rod (7) and the spacing adjustment mechanism (3) are parallel to each other.

7. The sealing baffle mechanism for a tunnel protection door according to claim 1 is characterized in that: The two dustproof baffles (5) are both fixedly connected to the opposite ends thereof with sealing cushions (6), and the sealing cushions (6) extend in the left-right direction.

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