Foldable gap bridge

Abstract

The utility model discloses a foldable gap bridge, which belongs to the technical field of passage parts of heavy transportation equipment and comprises a first supporting wall and a second supporting wall which are positioned above the transportation equipment, a gap bridge cover plate is arranged above the first supporting wall and the second supporting wall, and the bottom of one side of the gap bridge cover plate is rotatably connected with the first supporting wall through a rotating part. A hand hole is formed in the gap bridge cover plate, a trigger switch is fixed to the bottom of the gap bridge cover plate, a supporting seat attached to the bottom of the gap bridge cover plate is fixed to the top of the second supporting wall, the rotating component comprises a combination plate fixed to the top of the first supporting wall, and a positioning lug plate inclining upwards is fixed to one side of the combination plate. According to the folding gap bridge, the gap bridge can be lifted up at will according to the actual situation on site, damage to the gap bridge is avoided, operation is labor-saving and convenient, the transversely-arranged pedal facilitates climbing walking of personnel, when the folding gap bridge is used, the lifting air cylinder is started through the trigger switch, the air cylinder is a multi-section air cylinder, and different folding angles can be adjusted.

Description

Technical Field

[0001] This utility model relates to a foldable bridge, belonging to the technical field of heavy transport equipment passage components. Background Technology

[0002] In the mining or coal mine operation, transfer conveyors are used to transport materials over long distances. Since the conveyor line is located on the ground, a walking bridge is installed above the transport line to facilitate the safe and quick passage of personnel. When workers need to move from one side of the transfer conveyor to the other side, they can walk to the other side of the transfer conveyor through the bridge cover plate, which is fixed to the top of the landing trough baffle at one end.

[0003] However, during the transportation of materials, there are some gangue stones with relatively high protrusions. These gangue stones are relatively high due to their accumulation or large individual pieces. Traditional walking bridges are mostly simply fixed above the transport line. When large pieces of gangue pass by, they will hit the bridge and cause damage to it.

[0004] For example, Chinese utility model patent application CN202223521986.6 discloses an improved pedestrian crossing device for a conveyor, which relates to the field of mine roadway transportation and passage technology. It includes a conveyor installed on the roadway floor, with support rods installed on both sides above the conveyor. A ladder drawer is connected above the support rods on both sides, and a retractable and foldable ladder is placed inside the ladder drawer. When there are no pedestrians crossing the bridge, the ladder can be stored in the ladder drawer. When there are pedestrians crossing the bridge, the ladder is pulled out from the ladder drawer. A bridge plate for pedestrians to pass is provided on the upper part of the ladder drawer.

[0005] The bridge-crossing device in the aforementioned document does not occupy roadway space, thus avoiding situations where vehicles or materials transported on them get stuck on the bridge-crossing ladder during vehicle transportation in the roadway, causing vehicles to fall off the road or damage the bridge, or even damage the conveyor and affect production. It ensures that personnel can pass through without affecting roadway transportation.

[0006] However, the above-mentioned device still occupies too much space, and the escalator needs to be frequently retracted and pulled out. Sufficient material passage space still needs to be left above the transfer machine, and passage is also quite troublesome and laborious. Therefore, this utility model is proposed. Utility Model Content

[0007] The purpose of this utility model is to provide a foldable bridge to solve the above problems. It can be lifted at will according to the actual site conditions, avoiding damage to the bridge. Moreover, it is easy and labor-saving to operate. The horizontal step pedal also facilitates personnel to climb and walk. When in use, the lifting cylinder is activated by triggering the switch. The cylinder is a multi-stage cylinder that can be adjusted to different folding angles to prevent large pieces of gangue from hitting the bridge cover plate.

[0008] This utility model achieves the above-mentioned objective through the following technical solution: a foldable bridge, including a first support wall and a second support wall located above a transport device, with a transport route between the first and second support walls. A bridge cover is provided above the first and second support walls, and the bridge cover overlaps the first and second support walls when unfolded. One bottom side of the bridge cover is rotatably connected to the first support wall via a rotating component. A hand hole is provided on the bridge cover, and a trigger switch is fixed at the bottom of the bridge cover. A support seat that fits against the bottom of the bridge cover is fixed at the top of the second support wall.

[0009] Preferably, in order to facilitate stable restriction of the position of the bridge cover plate, the rotating component includes a joint plate fixed to the top of the first support wall, an upwardly inclined positioning ear plate fixed on one side of the joint plate, and an intermediate ear plate inserted between the positioning ear plates fixed to the bottom of the bridge cover plate.

[0010] Preferably, in order to facilitate the auxiliary support of the bridge cover plate, both the intermediate ear plate and the positioning ear plate are provided with a central hole, a pin is inserted into the central hole, and a filler plate is fixed on the upper surface of the joint plate.

[0011] Preferably, in order to drive the bridge cover plate to rotate via the central gear, an assembly side plate is fixed on the side wall of the bridge cover plate, a central gear is fixed on the assembly side plate, the axis of the central gear coincides with the axis of the central hole, and a transmission assembly is provided on the first support wall.

[0012] Preferably, in order to facilitate the reversal of power, the transmission assembly includes a horizontal plate fixed to the first support wall, a support portion fixed to one side of the horizontal plate, and a transmission gear rotatably mounted on the support portion, the transmission gear meshing with the central gear.

[0013] Preferably, in order to drive the bridge cover plate to fold when the vertical rod is raised, a driving device is provided on one side of the first support wall. The driving device includes a lifting cylinder fixed to the bottom of the first support wall. A relay plate is fixed to the top of the lifting cylinder. A vertical rod is fixed to the relay plate. A toothed rack is provided on the side of the vertical rod near the transmission gear. The toothed rack and the transmission gear are dynamically engaged.

[0014] Preferably, in order to make the operation of the vertical rods more stable, a horizontal foot pedal is fixed between the vertical rods, and a limiting shell is fixed on one side of the horizontal plate, the limiting shell partially surrounding the vertical rods.

[0015] Preferably, in order to facilitate personnel walking, a handrail is fixed on the upper surface of the bridge cover plate. The handrail includes a base plate fixed to the bridge cover plate, a U-shaped rod is fixed on the base plate, and a vertical stop bar is fixed between the U-shaped rod and the base plate.

[0016] The beneficial effects of this utility model are: this folding bridge can be raised at will according to the actual site conditions, avoiding damage to the bridge, and it is easy and labor-saving to operate. The horizontal step pedal also facilitates personnel to climb and walk. When in use, the lifting cylinder is activated by triggering the switch. The cylinder is a multi-stage cylinder that can be adjusted to different folding angles to prevent large pieces of gangue from hitting the bridge cover plate. When the bridge cover plate is folded, the horizontal step pedal is also raised at the same time to prevent personnel from climbing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the trigger switch structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the drive device structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the rotating component structure of this utility model.

[0021] Figure 5 This is a schematic diagram of the transmission component structure of this utility model.

[0022] In the diagram: 1. First support wall; 2. Second support wall; 201. Support seat; 3. Bridge cover plate; 301. Hand hole; 302. Trigger switch; 303. Central gear; 4. Rotating component; 401. Connecting plate; 402. Positioning ear plate; 403. Intermediate ear plate; 404. Pin shaft; 405. Filler plate; 5. Transmission assembly; 501. Horizontal plate; 502. Transmission gear; 503. Limiting shell; 6. Drive device; 601. Lifting cylinder; 602. Vertical rod; 603. Horizontal foot pedal; 7. Handrail frame; 701. Base plate; 702. U-shaped rod; 703. Vertical stop bar. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-5 As shown, a foldable bridge includes a first support wall 1 and a second support wall 2 located above a transport device. The transport route of the transport device is located between the first support wall 1 and the second support wall 2. A bridge cover plate 3 is provided above the first support wall 1 and the second support wall 2. When unfolded, the bridge cover plate 3 overlaps the first support wall 1 and the second support wall 2. The bottom side of one side of the bridge cover plate 3 is rotatably connected to the first support wall 1 through a rotating component 4. A hand hole 301 is provided on the bridge cover plate 3. A trigger switch 302 is fixed at the bottom of the bridge cover plate 3. A support base 201 that fits against the bottom of the bridge cover plate 3 is fixed at the top of the second support wall 2.

[0025] like Figure 4 As shown, the rotating component 4 includes a joint plate 401 fixed to the top of the first support wall 1. An upwardly inclined positioning ear plate 402 is fixed on one side of the joint plate 401. An intermediate ear plate 403 inserted between the positioning ear plates 402 is fixed to the bottom of the bridge cover plate 3, which can facilitate the stable restriction of the position of the bridge cover plate 3. A central hole is opened on both the intermediate ear plate 403 and the positioning ear plate 402. A pin 404 is inserted into the central hole. A filling plate 405 is fixed on the upper surface of the joint plate 401, which can facilitate the auxiliary support of the bridge cover plate 3.

[0026] like Figures 3-5 As shown, an assembly side plate is fixed to the side wall of the bridge cover plate 3, and a central gear 303 is fixed to the assembly side plate. The axis of the central gear 303 coincides with the axis of the central hole. A transmission assembly 5 is provided on the first support wall 1, so that the bridge cover plate 3 can be driven to rotate through the central gear 303. The transmission assembly 5 includes a horizontal plate 501 fixed to the first support wall 1. A support part is fixed to one side of the horizontal plate 501, and a transmission gear 502 is rotatably mounted on the support part. The transmission gear 502 and the central gear 303 are connected to the central gear 303. The wheels 303 mesh with each other, which facilitates the reversal of power. A drive device 6 is provided on one side of the first support wall 1. The drive device 6 includes a lifting cylinder 601 fixed to the bottom of the first support wall 1. A relay plate is fixed to the top of the lifting cylinder 601. A vertical rod 602 is fixed on the relay plate. A toothed rack is provided on the side of the vertical rod 602 near the transmission gear 502. The toothed rack and the transmission gear 502 mesh with each other, so that the bridge cover plate 3 can be driven to fold when the vertical rod 602 is raised.

[0027] like Figure 5 As shown, a horizontal foot pedal 603 is fixed between the vertical rods 602, and a limiting shell 503 is fixed on one side of the horizontal plate 501. The limiting shell 503 partially surrounds the vertical rods 602, which makes the operation of the vertical rods 602 more stable.

[0028] like Figure 3As shown, a handrail 7 is fixed on the upper surface of the bridge cover plate 3. The handrail 7 includes a base plate 701 fixed to the bridge cover plate 3. A U-shaped rod 702 is fixed on the base plate 701. A vertical stop bar 703 is fixed between the U-shaped rod 702 and the base plate 701, which facilitates the movement of people.

[0029] This folding bridge can be raised at will according to the actual situation on site, avoiding damage to the bridge. Moreover, it is easy and labor-saving to operate. The horizontal foot pedal 603 also facilitates personnel to climb and walk. When in use, the lifting cylinder 601 is activated by triggering the switch 302. The cylinder is a multi-stage cylinder, which can be adjusted to different folding angles to prevent large pieces of gangue from hitting the bridge cover plate 3. When the bridge cover plate 3 is folded, the horizontal foot pedal 603 is also raised at the same time to prevent personnel from climbing.

[0030] In use, the lifting cylinder 601 moves the vertical rod 602 and simultaneously moves the horizontal foot pedal 603. When folding, the vertical rod 602 rises, and through the conversion of the transmission gear 502, the bridge cover 3 can rotate counterclockwise, thus folding. When large pieces of coal and gangue pass through, lifting the bridge cover 3 avoids deformation or damage caused by the compression of the bridge cover 3 when large pieces of coal and gangue pass through, which is conducive to safe production underground, reduces production costs, and improves production efficiency.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A foldable bridge, characterized by: The utility model provides a kind of bridge cover plate for transport equipment, including the first support wall (1) and the second support wall (2) located above the transport equipment, the top of the first support wall (1) and the second support wall (2) is equipped with bridge cover plate (3), the bottom of one side of the bridge cover plate (3) is rotatably connected with the first support wall (1) by rotating component (4), hand hole (301) is opened in the bridge cover plate (3), trigger switch (302) is fixed on the bottom of the bridge cover plate (3), the top of the second support wall (2) is fixed with the support seat (201) that the bottom of the bridge cover plate (3) is attached.

2. The foldable bridge of claim 1, wherein: The rotating component (4) includes a joint plate (401) fixed to the top of the first support wall (1), one side of the joint plate (401) is fixed with an upwardly inclined positioning lug plate (402), and the bottom of the bridge cover plate (3) is fixed with an intermediate lug plate (403) inserted between the positioning lug plates (402).

3. The foldable bridge approach of claim 2, wherein: The intermediate lug plate (403) and the positioning lug plate (402) are both provided with a center hole, a pin shaft (404) is inserted into the center hole, and a filling plate (405) is fixed to the upper surface of the joint plate (401).

4. The foldable bridge of claim 3, wherein: A mounting side plate is fixed to the side wall of the bridge cover plate (3), a center gear (303) is fixed to the mounting side plate, the axis of the center gear (303) coincides with the axis of the center hole, and a transmission assembly (5) is provided on the first support wall (1).

5. The foldable bridge of claim 4, wherein: The transmission assembly (5) includes a horizontal plate member (501) fixed to the first support wall (1), a support portion is fixed to one side of the horizontal plate member (501), a transmission gear (502) is rotatably installed on the support portion, and the transmission gear (502) is engaged with the center gear (303).

6. The foldable bridge of claim 5, wherein: A driving device (6) is provided on one side of the first support wall (1), the driving device (6) includes a lifting cylinder (601) fixed to the bottom of the first support wall (1), a relay plate is fixed to the top end of the lifting cylinder (601), a vertical rod member (602) is fixed to the relay plate, a toothed strip is provided on the side of the vertical rod member (602) close to the transmission gear (502), and the toothed strip is powerfully engaged with the transmission gear (502).

7. The foldable bridge of claim 6, wherein: A horizontal stepping plate (603) is fixed between the vertical rod members (602), a limiting shell (503) is fixed to one side of the horizontal plate member (501), and the limiting shell (503) is semi-enclosed outside the vertical rod members (602).

8. The foldable bridge of claim 1, wherein: A handrail (7) is fixed to the upper surface of the bridge cover plate (3), the handrail (7) includes a bottom plate (701) fixed to the bridge cover plate (3), a U-shaped rod (702) is fixed to the bottom plate (701), and a vertical rod (703) is fixed between the U-shaped rod (702) and the bottom plate (701).

Images