Manhole protection device for steel structure bridge floor

Abstract

The utility model relates to the field of bridge construction, in particular to a steel structure bridge floor manhole protection device which comprises a cage body, the cage body is used for surrounding the opening of a manhole, a door body capable of being opened and closed is arranged on one side of the cage body, a plurality of magnet blocks are arranged at the bottom of the cage body, and the magnet blocks are arranged around the edge of the bottom of the cage body. The magnetic blocks are arranged at the bottom of the cage body, so that the connection stability between the cage body and the steel structure bridge floor can be enhanced, the cage body is not easy to move under the action of external force, and the protection effect of the cage body on the manhole is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge construction field especially relates to a steel structure bridge deck manhole protection device. BACKGROUND

[0002] In the steel structure bridge construction, it is needed to reserve the manhole on the bridge deck to facilitate the construction personnel to go in and out, therefore, it is needed to carry out the temporary protection to the manhole, the traditional mode is to set up the barrier around the manhole, for example, places the safety cone around the manhole and hangs the warning line along the safety cone, and also is to place the protective cage around the manhole. These protection measures have a common problem: because cannot punch or weld on the steel structure bridge deck, the protection device is difficult to install stably on the bridge deck, when receiving the external force, the protection device is prone to displacement, and the protection capacity is limited.

[0003] Therefore, at present, a kind of technical scheme is needed to solve the technical problems that traditional protection device is difficult to stably install on steel structure bridge deck, prone to move when receiving external force, and poor protection capacity. UTILITY MODEL CONTENT

[0004] The utility model is to overcome the technical problems that traditional protection device is difficult to stably install on steel structure bridge deck, prone to move when receiving external force, and poor protection capacity, provide a kind of steel structure bridge deck manhole protection device.

[0005] The utility model provides a kind of steel structure bridge deck manhole protection device, including cage, the cage is used to surround manhole mouth part setting, the door body of the cage one side is provided with open and close, the bottom of the cage is equipped with a plurality of magnet blocks, a plurality of magnet blocks surround the bottom edge of the cage setting.

[0006] The utility model is a kind of steel structure bridge deck manhole protection device, when using, the cage is installed around the manhole on bridge deck, the bottom of the cage is adsorbed on the bridge deck of steel structure by magnet block, opens the door body of the cage one side and can go in and out manhole, closes the door body, then can carry out protection to the manhole around, avoid construction personnel to misenter manhole.

[0007] Preferably, the cage includes door bars and three side bars, the door bars and three side bars are enclosed to form a rectangular shape, and the door body is arranged on the door bars.

[0008] The cage is a rectangular frame composed of three side bars and one door bar, which is adapted to the shape of the manhole, facilitating the installation of the cage around the manhole, and four components are sequentially welded or connected to form the cage, which is simple to manufacture and low in cost.

[0009] Preferably, the cage further includes a top plate for closing the opening at the top of the cage.

[0010] By adding a top plate on the top of the rectangular frame, the top of the cage can be closed to avoid rain or debris from falling into the manhole.

[0011] Preferably, the bottom edge of the top plate is provided with an annular limiting plate downward.

[0012] The annular limiting plate is clamped on the outer wall of the cage, which limits the top plate from sliding and falling off the top of the cage.

[0013] Preferably, the bottom of the cage is also provided with a plurality of universal wheels, and the plurality of universal wheels are arranged around the edge of the bottom of the cage.

[0014] By arranging the universal wheels on the bottom of the cage and the lifting mechanism on the side of the cage, the magnet block is driven upward by the lifting mechanism.

[0015] Preferably, the lifting mechanism comprises a vertical plate, the vertical plate is provided with a sliding block that can slide up and down, the magnet block is connected with the sliding block, and the vertical plate is provided with a baffle at both ends.

[0016] The rotation of the screw rod drives the sliding block to move upward, thereby driving the magnet block connected with the sliding block to move up and down, realizing the adsorption and separation of the magnet block and the bridge surface.

[0017] Preferably, the lifting mechanism further comprises a connecting seat, one end of the connecting seat is connected with the cage, and the other end of the connecting seat is connected with the vertical plate.

[0018] By connecting the connecting seat to one side of the vertical plate and connecting the connecting seat to the side of the cage, the connecting seat and the sliding block, screw rod and other components on the connecting seat can be slightly away from the cage, thereby facilitating the rotation operation of the screw rod on the vertical plate by the operator.

[0019] Preferably, the two baffles are respectively provided with bearings, and the screw rod is connected with the two bearings.

[0020] The rotation of the screw rod drives the sliding block to move upward, thereby driving the magnet block connected with the sliding block to move up and down, realizing the adsorption and separation of the magnet block and the bridge surface.

[0021] Preferably, two guide rods are arranged between the two baffles, the two guide rods are arranged on both sides of the lead screw, the sliding block is provided with two sliding holes, and the sliding block is slidably connected with the two guide rods through the two sliding holes.

[0022] The sliding block is slidably arranged on the vertical plate, and the sliding block can move up and down along the guide rod when the lead screw rotates.

[0023] Preferably, the top of the lead screw is provided with a rotating disc.

[0024] The rotating disc is convenient for rotating the lead screw, and the operation is convenient and labor-saving.

[0025] Compared with the prior art, the utility model has the beneficial effects of:

[0026] 1. The manhole protection device for a steel structure bridge deck is characterized in that a plurality of magnet blocks are arranged at the bottom of the cage body, the connection stability between the cage body and the bridge deck is enhanced, and the cage body is not prone to moving when subjected to external force.

[0027] 2. The manhole protection device for a steel structure bridge deck is characterized in that the bottom of the cage body is connected to the bridge deck by means of magnetic adsorption, and the installation stability of the cage body on the bridge deck is enhanced without damaging the steel structure of the bridge deck. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a structural schematic view of the manhole protection device for a steel structure bridge deck of the utility model;

[0029] Figure 2 is a front view of the lifting mechanism;

[0030] Figure 3 is a side view of the lifting mechanism;

[0031] MARKS IN THE DRAWINGS:

[0032] 1-cage body, 11-side fence, 12-door fence, 13-top plate, 2-magnet block, 3-castor wheel, 4-lifting mechanism, 41-vertical plate, 411-baffle, 412-guide rod, 42-sliding block, 43-lead screw, 431-rotating disc, 44-connection seat. DETAILED DESCRIPTION

[0033] The utility model will be further described in detail in combination with specific embodiments. However, this should not be understood as the scope of the above-mentioned subject matter of the utility model being limited to the following embodiments, and any technology realized based on the content of the utility model belongs to the scope of the utility model.

[0034] In the description of the embodiments of the present application, the terms of orientation or position relationship such as "upper", "lower", "left", "right", "center", "inner", "outer" and the like are expressed based on the orientation or position relationship shown in the drawings, or the orientation or position relationship when the product / device / apparatus of the present application is usually used. These terms of orientation or position relationship are only for the convenience of describing the present application or simplifying the description of the embodiments, and for the convenience of the technicians to quickly understand the scheme, and do not indicate or imply that a specific device / component / element must have a specific orientation or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present application.

[0035] In addition, the terms "horizontal", "vertical", "suspension", "parallel" and the like do not mean that the corresponding device / component / element must be absolutely horizontal or vertical or suspended or parallel, but can be slightly inclined or deviated. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. Alternatively, it can be simplified to understand that the corresponding device / component / element is arranged in the direction of "horizontal", "vertical", "suspension", "parallel" and the like, and can have an error / deviation of ±10% relative to the corresponding direction, more preferably an error / deviation of ±8% or less, more preferably an error / deviation of ±6% or less, more preferably an error / deviation of ±5% or less, and more preferably an error / deviation of ±4% or less. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the scheme of the present application.

[0036] In addition, the terms "first", "second", "third" and the like in the description of the present application are only used to distinguish the same or similar components, and should not be understood as emphasizing or implying the relative importance of the specific components.

[0037] In addition, in the description of the embodiments of the present application, "several", "a plurality of", "several" represent at least 2. It can be 2, 3, 4, 5, 6, 7, 8, 9, etc. in any case, and even more than 9.

[0038] In addition, in the description of the technical scheme of the present application, unless otherwise specified / limited / limited, the terms "arrangement", "installation", "connection", "connection", "provided with", "laid", "arrangement" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, which can be welding, riveting, bolting, screwing and other commonly used connection means in the art. The connection can be mechanical connection, electrical connection or communication connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements.

[0039] Embodiment 1

[0040] As Figure 1 shown, a kind of steel structure bridge deck manhole protection device, including cage 1, the cage 1 is used to set around manhole mouth part, the cage 1 one side is provided with the door body that can be opened and closed, the bottom of the cage 1 is equipped with several magnet blocks 2, several magnet blocks 2 are set around the bottom edge of the cage 1.

[0041] When using, the cage 1 is installed around the manhole on the bridge deck, the bottom of the cage 1 is adsorbed on the bridge deck of steel structure by magnet block 2, the door body on the one side of the cage 1 is opened, and the manhole can be accessed, and the door body is closed, so that the manhole around can be protected, to avoid construction personnel from entering the manhole.

[0042] Cage 1: including door bar 12 and three side bars 11, the door bar 12 and three side bars 11 are enclosed to form rectangular shape, the cage 1 is the rectangular frame of three side bars 11 and one door bar 12, on the one hand, the shape of manhole is adapted, and the cage 1 is installed around the manhole, on the other hand, four components can be sequentially welded or connected to form the cage 1, simple in manufacture, low in cost, the door body is arranged on the door bar 12, and the door body includes left door and right door and is hinged to two side bars 11 respectively, and the left door and the right door are provided with lock catch in the lower part;The cage 1 also includes top plate 13, and the top plate 13 is used to close the opening in the upper part of the cage 1, the top of the cage 1 can be closed by the top plate 13, to avoid that rain or sundries in the outside falls into the manhole, and the bottom surface edge of the top plate 13 is provided with annular limiting plate downward, the annular limiting plate is clamped on the outer wall of the cage 1, and the top plate 13 is limited, to avoid that the top plate 13 slides on the top of the cage 1 and falls.

[0043] Embodiment 2

[0044] As Figure 1 , Figure 2 and Figure 3 shown, in the embodiment, the difference from embodiment 1 is that the bottom of the cage 1 is also provided with several universal wheels 3, several universal wheels 3 are set around the bottom edge of the cage 1, the side of the cage 1 is provided with several lifting mechanisms 4, the magnet block 2 is connected with the lifting mechanism 4 one by one, and the lifting mechanism 4 is used to drive the magnet block 2 to move up and down.

[0045] In this embodiment, the cage 1 is provided with universal wheels 3 at the bottom, and lifting mechanisms 4 are arranged on the side of the cage 1. The magnet block 2 is driven to move upward by the lifting mechanism 4. When the cage 1 is in place at the manhole, the magnet block 2 is driven to move downward by the lifting mechanism 4, and is adsorbed to the bridge of the steel structure, so as to fix the cage 1 at the manhole. When it is necessary to remove the cage 1 or to move the cage 1, the magnet block 2 is driven to move upward by the lifting mechanism 4, so that the magnet block 2 is separated from the bridge, thereby avoiding the influence of the magnet block 2 on the movement of the cage 1.

[0046] The lifting mechanism 4 comprises a vertical plate 41, a sliding block 42 slidably arranged on the vertical plate 41, and a magnet block 2 connected with the sliding block 42. The vertical plate 41 is provided with a baffle 411 at each of the upper end and the lower end. A lead screw 43 is rotatably connected between the two baffles 411. The sliding block 42 is provided with a threaded hole matched with the lead screw 43. The rotation of the lead screw 43 drives the sliding block 42 to move upward, thereby driving the magnet block 2 connected with the sliding block 42 to move upward or downward, so as to realize the adsorption and separation of the magnet block 2 and the bridge.

[0047] The rotatable mounting of the lead screw 43 on the vertical plate 41: two bearings are arranged on the two baffles 411 respectively, and the lead screw 43 is connected with the two bearings respectively, so as to realize the rotatable mounting of the lead screw 43 on the vertical plate 41. The two bearings provide support for the lead screw 43, so that the rotation operation of the lead screw 43 is more smooth.

[0048] The sliding connection of the sliding block 42 and the vertical plate 41: two guide rods 412 are arranged between the two baffles 411. The two guide rods 412 are arranged on the two sides of the lead screw 43. The sliding block 42 is provided with two sliding holes. The sliding block 42 is slidably connected with the two guide rods 412 through the two sliding holes, so as to realize the sliding mounting of the sliding block 42 on the vertical plate 41. When the lead screw 43 rotates, the sliding block 42 can move upward or downward along the guide rods 412.

[0049] Further, a rotating disc 431 is arranged at the top of the lead screw 43, so as to facilitate the rotation of the lead screw 43 through the rotating disc 431, and the operation is convenient and labor-saving.

[0050] Further, the lifting mechanism 4 further comprises a connecting seat 44. One end of the connecting seat 44 is connected with the cage 1, and the other end of the connecting seat 44 is connected with the vertical plate 41. The connecting seat 44 is connected with the side of the cage 1, so that the connecting seat 44 and the components such as the sliding block 42 and the lead screw 43 on the connecting seat 44 can be slightly away from the cage 1, thereby facilitating the rotation operation of the lead screw 43 on the vertical plate 41 by the operator.

[0051] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A manhole protection device for a steel structure bridge deck, characterized in that, Including cage (1), the cage (1) is used for being arranged around manhole part, the cage (1) one side is provided with openable and closable door body, the cage (1) bottom is equipped with a plurality of magnet block (2), a plurality of magnet block (2) is arranged around the bottom edge of the cage (1).

2. A manhole protection device for a steel deck of a bridge according to claim 1, characterized in that The cage (1) includes door bar (12) and three side bars (11), the door bar (12) and three side bars (11) are enclosed to form a rectangular shape, and the door body is arranged on the door bar (12).

3. A manhole protection device for a steel deck of a bridge as defined in claim 2, wherein The cage (1) further includes a top plate (13) for closing the opening at the upper portion of the cage (1).

4. A manhole protection device for a steel deck of a bridge as defined in claim 3, wherein The bottom edge of the top plate (13) is provided with an annular limiting plate downward.

5. A manhole protection device for a steel deck of a bridge as claimed in any one of claims 1 to 3, characterised in that, The bottom of the cage (1) is further provided with a plurality of universal wheels (3), and the plurality of universal wheels (3) are arranged around the bottom edge of the cage (1), the side of the cage (1) is provided with a plurality of lifting mechanisms (4), the magnet block (2) is connected with the lifting mechanism (4) one by one, and the lifting mechanism (4) is used to drive the magnet block (2) to move up and down.

6. A manhole protection device for a steel deck of a bridge as defined in claim 5, wherein The lifting mechanism (4) includes a vertical plate (41), a sliding block (42) is arranged on the vertical plate (41) and can slide up and down, the magnet block (2) is connected with the sliding block (42), the vertical plate (41) is provided with a baffle (411) at the upper end and the lower end respectively, a lead screw (43) is rotatably connected between the two baffles (411), and the sliding block (42) is provided with a threaded hole matched with the lead screw (43).

7. A manhole protection device for a steel deck of a bridge as defined in claim 6, wherein The lifting mechanism (4) further includes a connecting seat (44), one end of the connecting seat (44) is connected with the cage (1), and the other end of the connecting seat (44) is connected with the vertical plate (41).

8. A manhole protection device for a steel deck of a bridge as defined in claim 6, wherein Two bearings are arranged on the two baffles (411) respectively, and the lead screw (43) is connected with the two bearings respectively.

9. The manhole protector for a steel deck of a bridge as defined in claim 6 wherein, Two guide rods (412) are arranged between the two baffles (411), and the two guide rods (412) are arranged on the two sides of the lead screw (43), the sliding block (42) is provided with two sliding holes, and the sliding block (42) is slidably connected with the two guide rods (412) through the two sliding holes respectively.

10. The manhole protector for a steel deck of a bridge as defined in claim 6, wherein The top of the lead screw (43) is provided with a rotating disc (431).

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