Movable safety protection platform for bridge support padstone

Abstract

The utility model relates to a safety protection platform, in particular to a movable safety protection platform for a bridge support padstone, which comprises a rectangular protection frame, and the rectangular protection frame comprises a top protection frame at the top position, and a left clamping rectangular frame and a right clamping rectangular frame which are integrally formed on two sides below the top protection frame. The left clamping rectangular frame and the right clamping rectangular frame arranged on the rectangular protection frame are clamped and abut against the two sides of the bridge body respectively, so that the top protection frame arranged on the top of the left clamping rectangular frame and the top of the right clamping rectangular frame can be stably placed on the bridge body; through the moving wheels arranged at the contact part of the top protection frame and the bridge main body, the rectangular protection frame body can conveniently move on the bridge main body, so that the moving convenience of the rectangular protection frame is improved, the safety risk of dismounting construction of a modified and expanded part capping beam is reduced, constructors can conveniently perform construction operation on the capping beam, and the construction efficiency is improved; and the construction safety is ensured.

Description

Technical Field

[0001] The utility model relates to a safety protection platform, in particular to a bridge support cushion stone movable safety protection platform. Background Art

[0002] The bridge bearing is an important structural component connecting the superstructure and substructure of the bridge. It is located between the bridge and the pedestal. The bridge bearing is erected on the pier and is a device that supports the superstructure of the bridge on the top surface. Its function is to withstand various forces acting on the superstructure and reliably transmit them to the pier. It is an important force transmission device of the bridge. The construction of the bearing pedestal is an important part of the bridge project. The construction process often involves high-altitude operations. The problem of edge protection has always been a difficult problem in safety management of management units at all levels (construction, supervision, and construction). In order to improve construction safety, it is necessary to install a protective platform on the bridge bearing, thereby improving the construction safety of the bridge bearing.

[0003] The current safety protection platform cannot be conveniently installed and used on the bridge support, and it is inconvenient to move after installation on the bridge support. The safety protection platform cannot be conveniently moved according to changes in the construction location. Due to the different sizes of bridge supports, the safety protection platform cannot be installed and applied according to bridge supports of different sizes. The safety protection platform cannot be limited and fixed during construction, which will increase the construction risk. Utility Model Content

[0004] The utility model aims to provide a movable safety protection platform for bridge support pedestal stones to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A movable safety protection platform for bridge support pedestals comprises: a rectangular protection frame, wherein the rectangular protection frame comprises a top protection frame at the top position, and a left clamping rectangular frame and a right clamping rectangular frame integrally formed on both sides below the top protection frame, wherein the left clamping rectangular frame and the right clamping rectangular frame are respectively located on both sides of a bridge body and are arranged to abut against each other, and movable wheels are arranged at the contact position between the top protection frame and the bridge body, and the movable wheels slide and abut against each other on the horizontal plane of the bridge body.

[0007] The bridge support pedestal mobile safety protection platform as described above: the rectangular protection frame also includes a first side frame and a second side frame slidably plugged into the first side frame, a spacing adjustment mechanism is provided between the first side frame and the second side frame, a lifting rod is vertically slidably plugged into the center part of the first side frame and the second side frame, the lifting rod is threadedly connected to the fastening adjustment mechanism, and a positioning anti-skid mechanism is slidably plugged into the cavity of the lifting rod.

[0008] The bridge support pedestal movable safety protection platform as described above: a first movable ball is fixedly arranged on the cross bar at the position where the first side frame contacts the bridge body, the ball of the first movable ball contacts the horizontal plane of the bridge body, a plug-in rod is integrally provided on the cross bar of the first side frame on one side of the first movable ball, a limiting block is integrally provided at one end of the plug-in rod, and a first threaded hole is opened at the center of one end of another cross bar of the first side frame above the plug-in rod.

[0009] As described above, the mobile safety protection platform for bridge support pedestals: a second movable ball is fixedly arranged on the cross bar at the position where the second side frame contacts the bridge body, the ball of the second movable ball contacts the horizontal plane of the bridge body, a plug-in groove is provided at the center of one end of the cross bar on the second side frame on one side of the second movable ball, and a second threaded hole is provided at the center of one end of the cross bar on the second side frame above the second movable ball.

[0010] The bridge support pedestal movable safety protection platform as described above: the spacing adjustment mechanism includes a rotating rod and a screw rod, both ends of the rotating rod are provided with a screw rod, and the threads on the two screw rods are arranged in opposite directions.

[0011] The bridge support pedestal movable safety protection platform as described above: the two screw rods are threadedly connected in the first threaded hole and the second threaded hole respectively, the plug-in rod below the first threaded hole is slidably inserted in the plug-in groove, and the limit block at one end of the plug-in rod is limitedly slid in the plug-in groove.

[0012] The bridge support pedestal mobile safety protection platform as described above: the outer wall of the lifting rod is provided with a thread, the outer wall of the lifting rod is symmetrically provided with a limiting groove, the lower half of the cavity of the lifting rod is provided with a cylindrical cavity, and the upper half is provided with a rectangular cavity, and the cylindrical cavity and the rectangular cavity are connected.

[0013] The mobile safety protection platform for bridge support pedestals as described above: the fastening and adjustment mechanism includes a rotating wheel, a connecting rod and a nut, four connecting rods are fixedly arranged in a circular array on the rotating wheel, the other ends of the four connecting rods are fixedly connected to the nut, and the nut is threadedly connected to the thread arranged on the outer wall of the lifting rod.

[0014] The mobile safety protection platform for bridge support pedestals as described above: the positioning and anti-skid mechanism includes a round rod, a rectangular block, a handle, a contact plate and an anti-skid contact cone. A rectangular block is fixedly provided on the top end of the round rod, a handle is fixedly provided on the rectangular block, a contact plate is fixedly provided on the bottom end of the round rod, and anti-skid contact cones are distributed on the contact plate. The round rod is slidably inserted in the cylindrical cavity, the rectangular block is slidably inserted in the rectangular cavity, and the anti-skid contact cone is provided in contact with the bottom horizontal plane of the bridge body.

[0015] The movable safety protection platform for bridge bearing pads as described above: sliding grooves are provided on both the first side frame and the second side frame, limiting bars are symmetrically and fixedly arranged inside the sliding grooves, lifting rods are slidably inserted into the sliding grooves, and the limiting bars are slidably inserted into limiting grooves.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] By clamping and abutting against both sides of the bridge main body with the left clamping rectangular frame and the right clamping rectangular frame provided in the rectangular protection frame, the top protection frame provided at the top of the left clamping rectangular frame and the right clamping rectangular frame can be stably placed on the bridge main body. Through the moving wheels provided at the contact part between the top protection frame and the bridge main body, the rectangular protection frame body can be conveniently moved on the bridge main body, improving the moving convenience of the rectangular protection frame, reducing the safety risk of the demolition construction of the modified and extended capping beam, facilitating the construction personnel to carry out construction operations on the capping beam, improving the construction efficiency, and ensuring the construction safety.

[0018] Also, through the settings of the spacing adjustment mechanism, lifting rods, fastening adjustment mechanism, and positioning protection mechanism provided on the first side frame and the second side frame, the rectangular protection frame can be adapted to be installed and used on bridge main bodies of different sizes. Through the design of the lifting rods, fastening adjustment mechanism, and positioning protection mechanism, when the rectangular protection frame is installed on the bridge main body and construction is carried out, the position of the rectangular protection frame can be limited and fixed, improving the stability of the protection platform during construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the movable safety protection platform for bridge bearing pads.

[0020] Figure 2 It is a structural schematic diagram of the whole in the movable safety protection platform for bridge bearing pads.

[0021] Figure 3 It is a structural schematic diagram of the rectangular protection frame in the movable safety protection platform for bridge bearing pads.

[0022] Figure 4 It is a structural schematic diagram of the first side frame in the movable safety protection platform for bridge bearing pads.

[0023] Figure 5 It is a structural schematic diagram of the second side frame in the movable safety protection platform for bridge bearing pads.

[0024] Figure 6 It is a structural schematic diagram of the sliding groove in the movable safety protection platform for bridge bearing pads.

[0025] Figure 7It is a schematic structural diagram of the center distance adjustment mechanism of the mobile safety protection platform for bridge bearing cushion stones.

[0026] Figure 8 It is a schematic structural diagram of the fastening adjustment mechanism of the mobile safety protection platform for bridge bearing cushion stones.

[0027] Figure 9 It is a schematic structural diagram of the lifting rod of the mobile safety protection platform for bridge bearing cushion stones.

[0028] Figure 10 It is a schematic structural diagram of the positioning and anti-slip mechanism of the mobile safety protection platform for bridge bearing cushion stones.

[0029] In the figure: 1. Bridge main body; 2. Rectangular protection frame; 3. First side frame; 301. First moving ball; 302. Inserting rod; 303. Limit block; 304. First threaded hole; 4. Second side frame; 401. Second moving ball; 402. Inserting slot; 403. Second threaded hole; 5. Center distance adjustment mechanism; 501. Rotating rod; 502. Screw rod; 6. Lifting rod; 601. Limit slot; 602. Cylindrical cavity; 603. Rectangular cavity; 7. Fastening adjustment mechanism; 701. Rotating wheel; 702. Connecting rod; 703. Nut; 8. Positioning and anti-slip mechanism; 801. Round rod; 802. Rectangular block; 803. Handle; 804. Contact disc; 805. Anti-slip contact cone; 9. Sliding slot; 901. Limit strip. Detailed implementation manners

[0030] The following will describe in detail various exemplary embodiments, features, and aspects of the present application with reference to the accompanying drawings. The same reference numerals in the drawings denote elements having the same or similar functions. Although various aspects of the embodiments are shown in the drawings, the drawings do not have to be drawn to scale unless otherwise specified.

[0031] The special word "exemplary" here means "serving as an example, embodiment, or illustration". Any embodiment described as "exemplary" here does not have to be construed as superior to or better than other embodiments.

[0032] In addition, for better illustration of the present application, numerous specific details are given in the following detailed embodiments. Those skilled in the art should understand that the present application can also be implemented without some specific details. In some instances, methods, means, and elements well known to those skilled in the art are not described in detail so as to highlight the gist of the present application.

[0033] Please refer to Figures 1 to 10, in the embodiment of the present utility model, a movable safety protection platform for a bridge bearing cushion stone includes: a rectangular protection frame 2, the rectangular protection frame 2 includes a top protection frame at the top position, and a left clamping rectangular frame and a right clamping rectangular frame integrally formed on both sides below the top protection frame. The left clamping rectangular frame and the right clamping rectangular frame are respectively arranged in contact with both sides of the bridge main body 1. A moving wheel is arranged at the contact position between the top protection frame and the bridge main body 1, and the moving wheel slides and abuts on the horizontal plane of the bridge main body 1.

[0034] In this embodiment, the rectangular protection frame 2 is composed of a top protection frame and a left clamping rectangular frame and a right clamping rectangular frame integrally formed on the left and right sides below the top protection frame. When the rectangular protection frame 2 is installed on the bridge main body 1, by respectively placing and clamping the left clamping rectangular frame and the right clamping rectangular frame on the left and right sides of the bridge main body 1, and through the clamping and abutting of the left clamping rectangular frame and the right clamping rectangular frame on both sides of the bridge main body 1, the top protection frame can be stably placed on the bridge main body 1. Operators can stand on the bridge main body 1 surrounded by the top protection frame. The top protection frame can improve the protection of construction workers. A moving wheel is arranged at the contact part between the top protection frame and the bridge main body 1, and the moving wheel slides and abuts on the horizontal plane of the bridge main body 1. Thus, when it is necessary to adjust the construction position, the bridge main body 1 can be conveniently slid and adjusted on the rectangular protection frame 2 for use, improving the convenience of construction use, facilitating the construction workers to carry out construction operations on the capping beam, improving the construction efficiency, and ensuring the construction safety.

[0035] As a further solution of the present utility model, the rectangular protection frame 2 further includes a first side frame 3 and a second side frame 4 slidably inserted into the first side frame 3. A distance adjusting mechanism 5 is arranged between the first side frame 3 and the second side frame 4. Lift rods 6 are vertically slidably inserted into the central parts of the first side frame 3 and the second side frame 4. The lift rods 6 are threadedly connected with a fastening adjusting mechanism 7. A positioning and anti-slip mechanism 8 is slidably inserted into the cavity of the lift rod 6.

[0036] In this embodiment, when the rectangular protection frame 2 is installed on the bridge main body 1, if the size of the bridge main body 1 is not adapted to the initial size of the rectangular protection frame 2, such as Figure 3As shown in the figure, by rotating the spacing adjustment mechanism 5, the rotating rod 501 is rotated, and the screw rod 502 rotates threadedly in the first threaded hole 304 and the second threaded hole 403. The screw rod 502 increases the spacing between the first side frame 3 and the second side frame 4. The plugging rod 302 and the limiting block 303 slide and plug in the plugging groove 402. Through the contact limit of the limiting block 303 with the inner wall of the plugging groove 402, the maximum spacing between the first side frame 3 and the second side frame 4 can be limited, meeting the connection use of the first side frame 3 and the second side frame 4. Ensure that when the spacing between the first side frame 3 and the second side frame 4 increases, the first side frame 3 and the second side frame 4 can remain connected, so that the width of the rectangular protection frame 2 can be installed on bridge bodies 1 of different sizes for use. By the first moving balls 301 provided on the first side frame 3 and the second moving balls 401 provided on the second side frame 4 contacting on the horizontal plane of the bridge body 1, the rectangular protection frame 2 can be conveniently moved on the bridge body 1 for use, facilitating the moving adjustment of the rectangular protection frame 2 when the construction position changes. When the operator is constructing, the rectangular protection frame 2 needs to be kept limited and reinforced to prevent the rectangular protection frame 2 from moving and affecting construction safety. After the first side frame 3 and the second side frame 4 are placed on both sides of the bridge body 1, by grasping the handle 803 and then lifting the handle 803, the rectangular block 802 and the round rod 801 are respectively adjusted in the rectangular cavity 603 and the cylindrical cavity 602. When the rectangular block 802 is higher than the rectangular cavity 603, at this time the round rod 801 can be rotated and adjusted in the cylindrical cavity 602. After the contact disk 804 is adjusted by 90 degrees, release the grasped handle 803, and it will fall under gravity. The rectangular block 802 will be plugged into the rectangular cavity 603 again. At this time, the rectangular block 802 is in a state of being rotated by 90 degrees. Through the plugging of the rectangular block 802 in the rectangular cavity 603, the orientation of the contact disk 804 can be restricted at this time and will not change. Since the first side frame 3 and the second side frame 4 contact both sides of the bridge body 1, after the contact disk 804 is adjusted, the contact disk 804 is under the bottom vertical plane of the bridge body 1 at this time. By rotating the rotating wheel 701, the nut 703 is threadedly adjusted on the outer wall of the lifting rod 6. The nut 703 contacts the rod bodies of the first side frame 3 and the second side frame 4, as Figure 4 and Figure 5 shown. Since when the rotating wheel 701 is rotated, the lifting rod 6 will vertically slide up and down in the sliding groove 9, making the contact disk 804 contact the bottom surface of the bridge body 1. The anti-slip contact cone 805 provided on the contact disk 804 can contact the bridge body 1, improving the anti-slip limit effect and ensuring the stability of the limit fixation and improving construction safety.

[0037] As a further solution of the utility model, a first moving ball 301 is fixedly arranged on the cross bar at the contact part between the first side frame 3 and the bridge main body 1. The ball of the first moving ball 301 abuts against the horizontal plane of the bridge main body 1. An inserting rod 302 is integrally formed on the cross bar of the first side frame 3 on one side of the first moving ball 301. A limiting block 303 is integrally formed at one end of the inserting rod 302. A first threaded hole 304 is formed at the center of the other end of the cross bar of the first side frame 3 above the inserting rod 302. A second moving ball 401 is fixedly arranged on the cross bar at the contact part between the second side frame 4 and the bridge main body 1. The ball of the second moving ball 401 abuts against the horizontal plane of the bridge main body 1. An inserting groove 402 is formed at the center of the other end of the cross bar of the second side frame 4 on one side of the second moving ball 401. A second threaded hole 403 is formed at the center of the other end of the cross bar of the second side frame 4 above the second moving ball 401. The distance adjusting mechanism 5 includes a rotating rod 501 and a screw rod 502. Screw rods 502 are arranged at both ends of the rotating rod 501. The thread directions of the two screw rods 502 are opposite. The two screw rods 502 are respectively threadedly connected in the first threaded hole 304 and the second threaded hole 403. The inserting rod 302 below the first threaded hole 304 is slidably inserted into the inserting groove 402. The limiting block 303 at one end of the inserting rod 302 is slidably limited in the inserting groove 402.

[0038] In this embodiment, when the rotating rod 501 is rotated, the screw rods 502 fixedly arranged at both ends of the rotating rod 501 can be thread-adjusted in the first threaded hole 304 and the second threaded hole 403 respectively, so as to control the distance between the first side frame 3 and the second side frame 4. Through the limiting sliding insertion of the inserting rod 302 and the limiting block 303 in the inserting groove 402, the maximum distance between the first side frame 3 and the second side frame 4 can be limited, meeting the adjustment use requirements. By controlling the distance between the first side frame 3 and the second side frame 4, the rectangular protection frame 2 can be installed on bridge main bodies 1 of different sizes for use, improving the use effect.

[0039] As a further solution of the utility model, the outer wall of the lifting rod 6 is provided with a thread, and the outer wall of the lifting rod 6 is symmetrically provided with a limit groove 601, the lower half of the cavity of the lifting rod 6 is provided with a cylindrical cavity 602, and the upper half is provided with a rectangular cavity 603, the cylindrical cavity 602 and the rectangular cavity 603 are connected, and the fastening adjustment mechanism 7 includes a rotating wheel 701, a connecting rod 702 and a nut 703, and four connecting rods 702 are fixedly provided in an annular array on the rotating wheel 701, and the other ends of the four connecting rods 702 are fixedly connected to the nut 703, and the nut 703 is threadedly connected to the outer surface of the lifting rod 6. On the thread set on the wall, the positioning and anti-skid mechanism 8 includes a round rod 801, a rectangular block 802, a handle 803, a contact plate 804 and an anti-skid contact cone 805. A rectangular block 802 is fixedly set on the top end of the round rod 801, and a handle 803 is fixed on the rectangular block 802. A contact plate 804 is fixedly set on the bottom end of the round rod 801, and anti-skid contact cones 805 are distributed on the contact plate 804. The round rod 801 is slidably inserted in the cylindrical cavity 602, and the rectangular block 802 is slidably inserted in the rectangular cavity 603. The anti-skid contact cone 805 is set to contact the bottom horizontal plane of the bridge body 1.

[0040] In this embodiment, the lifting and lowering of the lifting rod 6 can be controlled by rotating and adjusting the fastening and adjusting mechanism 7. Since the lifting rod 6 is provided with a positioning and anti-skid mechanism 8, the height of the positioning and anti-skid mechanism 8 can be lifted and adjusted together when the lifting rod 6 is lifted and lowered. Therefore, after the rectangular protective frame 2 is installed on the bridge body 1, when the position of the rectangular protective frame 2 needs to be positioned, the positioning and anti-skid mechanism 8 is rotated to adjust the positioning and anti-skid mechanism 8 on the lifting rod 6 by ninety degrees. Then, the fastening and adjusting mechanism 7 is rotated to raise the lifting rod 6, and the contact plate 804 will contact the bottom of the bridge body 1, so that the contact limit can be achieved, thereby ensuring the limit use of the bridge body 1.

[0041] As a further solution of the utility model, a sliding groove 9 is provided on the first side frame 3 and the second side frame 4, and a limit strip 901 is symmetrically fixed inside the sliding groove 9. A lifting rod 6 is slidably inserted in the sliding groove 9, and the limit strip 901 is slidably inserted in the limit groove 601.

[0042] In this embodiment, the sliding groove 9 provided on the first side frame 3 and the second side frame 4 enables the lifting rod 6 to be vertically lifted and lowered in the sliding groove 9, so that when the tightening and adjusting mechanism 7 is rotated, the lifting rod 6 will not rotate on the first side frame 3 and the second side frame 4, thereby satisfying the requirement of rotating the tightening and adjusting mechanism 7 to enable the lifting rod 6 to be vertically lifted and lowered, thereby ensuring the use effect.

[0043] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0044] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard 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 movable safety protection platform for bridge bearing pads, characterized in that Comprising: A rectangular protective frame (2), the rectangular protective frame (2) includes a top protective frame at the top position, and a left clamping rectangular frame and a right clamping rectangular frame integrally formed on both sides below the top protective frame. The left clamping rectangular frame and the right clamping rectangular frame are respectively arranged in contact with both sides of the bridge main body (1). A moving wheel is arranged at the contact position between the top protective frame and the bridge main body (1), and the moving wheel slides and abuts on the horizontal plane of the bridge main body (1).

2. The movable safety protection platform for bridge bearing pads according to claim 1, wherein The rectangular protective frame (2) further includes a first side frame (3) and a second side frame (4) slidably inserted into the first side frame (3). A spacing adjustment mechanism (5) is arranged between the first side frame (3) and the second side frame (4). A lifting rod (6) is vertically and slidably inserted into the central parts of the first side frame (3) and the second side frame (4). The lifting rod (6) is threadedly connected with a fastening adjustment mechanism (7). A positioning and anti-slip mechanism (8) is slidably inserted into the cavity of the lifting rod (6).

3. A movable safety protection platform for bridge bearing piers according to claim 2, characterized in that, A first moving ball (301) is fixedly arranged on the cross bar at the contact part between the first side frame (3) and the bridge main body (1). The ball of the first moving ball (301) abuts on the horizontal plane of the bridge main body (1). A plugging rod (302) is integrally formed on the cross bar of the first side frame (3) on one side of the first moving ball (301). A limiting block (303) is integrally formed at one end of the plugging rod (302). A first threaded hole (304) is opened at the central part of the other end of the cross bar of the first side frame (3) above the plugging rod (302).

4. The movable safety protection platform for bridge bearing cushion stones according to claim 2, wherein, A second moving ball (401) is fixedly arranged on the cross bar at the contact part between the second side frame (4) and the bridge main body (1). The ball of the second moving ball (401) abuts on the horizontal plane of the bridge main body (1). A plugging groove (402) is opened at the central part of one end of the cross bar of the second side frame (4) on one side of the second moving ball (401). A second threaded hole (403) is opened at the central part of one end of the cross bar of the second side frame (4) above the second moving ball (401).

5. The mobile safety protection platform for a bridge bearing cushion stone according to claim 2, characterized in that, The spacing adjustment mechanism (5) includes a rotating rod (501) and a screw rod (502). Screw rods (502) are arranged at both ends of the rotating rod (501), and the thread directions of the two screw rods (502) are opposite.

6. The movable safety protection platform for bridge bearing pads according to claim 5, characterized in that, The two screw rods (502) are respectively threadedly connected in the first threaded hole (304) and the second threaded hole (403). The plugging rod (302) below the first threaded hole (304) is slidably inserted into the plugging groove (402), and the limiting block (303) at one end of the plugging rod (302) is limited to slide in the plugging groove (402).

7. A movable safety protection platform for bridge bearing pads according to claim 2, characterized in that, The outer wall of the lifting rod (6) is provided with threads. Limiting grooves (601) are symmetrically opened on the outer wall of the lifting rod (6). The lower half part of the cavity of the lifting rod (6) is provided with a cylindrical cavity (602), and the upper half part is provided with a rectangular cavity (603). The cylindrical cavity (602) and the rectangular cavity (603) are communicated.

8. The mobile safety protection platform for bridge bearing pier cap according to claim 2, characterized in that, The fastening and adjusting mechanism (7) includes a rotating wheel (701), a connecting rod (702), and a nut (703). Four connecting rods (702) are fixedly arranged in an annular array on the rotating wheel (701), and the other ends of the four connecting rods (702) are fixedly connected to the nut (703). The nut (703) is threadedly connected to the thread provided on the outer wall of the lifting rod (6).

9. The mobile safety protection platform for bridge bearing pier according to claim 2, characterized in that, The positioning and anti-slip mechanism (8) includes a round rod (801), a rectangular block (802), a handle (803), a contact disc (804), and an anti-slip contact cone (805). One end of the top of the round rod (801) is fixedly provided with a rectangular block (802), and a handle (803) is fixedly provided on the rectangular block (802). One end of the bottom of the round rod (801) is fixedly provided with a contact disc (804), and anti-slip contact cones (805) are distributed on the contact disc (804). The round rod (801) is slidably inserted into the cylindrical cavity (602), the rectangular block (802) is slidably inserted into the rectangular cavity (603), and the anti-slip contact cone (805) is in contact with the bottom horizontal plane of the bridge body (1).

10. A movable safety protection platform for bridge bearing pads according to claim 2, characterized in that, Sliding grooves (9) are formed on both the first side frame (3) and the second side frame (4). Limiting strips (901) are symmetrically and fixedly arranged inside the sliding grooves (9). A lifting rod (6) is slidably inserted into the sliding grooves (9), and the limiting strips (901) are slidably inserted into the limiting grooves (601).

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