Slidable operation platform on outer side of bridge guardrail

Abstract

The utility model discloses a slidable bridge guardrail outside operation platform, which is characterized in that the inner side and the outer side of a support beam frame are respectively provided with a counter weight barrier and an operation barrier, the operation barrier and the counter weight barrier are respectively formed by connecting four side frames and a bottom frame, the lower end of the counter weight barrier is provided with walking wheels, and the bottom of the operation barrier is provided with a sliding block. A first supporting wheel is arranged on the operation barrier, a second supporting wheel is arranged on the supporting beam frame, a third supporting wheel is arranged on the balance weight barrier, the third supporting wheel is provided with an adjusting mechanism, the left-right position can be adjusted, and the three supporting wheels are in rolling contact with the outer side face, the top face and the inner side face of the bridge guardrail in sequence. The positioning ruler arranged on the supporting beam frame or the operation fence frame is of an L-shaped structure. The operation barrier adopts a surrounding frame type structure, the safety of a maintainer in the surrounding frame is high, the safety accident of slipping and falling cannot occur, the counterweight barrier is provided with the walking wheels, front and back movement is facilitated, and the maintenance efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a construction technology on the outer side of a bridge guardrail, in particular to a slidable working platform on the outer side of a bridge guardrail. Background Art

[0002] During the construction of highway electromechanical engineering, in order to ensure that communication pipelines pass through integral bridges, brackets and pipe boxes need to be installed on the outer side of the bridge guardrails, and silicon core pipes are placed in the communication pipe boxes for passing. The installation of the pipe box brackets requires positioning, punching, installation and fixing operations on the outer side of the bridge guardrails.

[0003] Bridges often span rivers, canyons, roads, etc. It is impossible to set up scaffolds for operations on the outer side. If a bridge inspection vehicle is used for operations, since the bridge inspection vehicle cannot cross the pier columns, the arm must be retracted to cross the pier columns, which is inconvenient to operate, has low efficiency, high costs, and cannot achieve continuous operation on the outer side of the bridge guardrails, and cannot efficiently complete the installation of the outer brackets and pipe boxes.

[0004] The authorized announcement number CN 219621600 U discloses a working platform on the outer side of a bridge guardrail. Its main frame is a U-shaped frame structure. The vertical beams on both sides of the main frame are arranged on both sides of the bridge guardrail, and the cross beam of the U-shaped main frame is located above the bridge guardrail; the vertical beams and the cross beam are provided with rollers to move along the surface of the bridge guardrail; a working platform is fixedly installed on the vertical beam I on one side of the main frame, and a counterweight frame is fixedly installed on the vertical beam II on the other side; the working platform is located on the outer side of the bridge guardrail, and the counterweight frame is located on the inner side of the bridge guardrail. It solves the problem that the bridge inspection vehicle cannot cross the pier columns for operations, and can complete the operations on the outer side of the bridge guardrail through the working platform, as well as the safe and efficient installation of the outer brackets and pipe boxes.

[0005] However, the above technical solution has the following deficiencies: 1. The working platform is a single-layer frame, only for the operators to stand. The operators are exposed outside the bridge guardrail, and there are safety hazards even though they wear safety ropes; 2. The counterweight frame is not provided with walking wheels, and it is not convenient to move. Summary of the Utility Model

[0006] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a slidable working platform on the outer side of a bridge guardrail with reasonable design, flexible movement and good safety.

[0007] The technical solution of the utility model is as follows:

[0008] A slidable working platform on the outer side of a bridge guardrail, comprising a support beam frame. An operation railing frame is arranged on the outer side of the support beam frame, and a counterweight railing frame is arranged on the inner side thereof. Both the operation railing frame and the counterweight railing frame are fence-type square frame structures, respectively formed by connecting four side frames and a bottom frame. A traveling wheel is arranged at the lower end of the counterweight railing frame. A first support wheel is arranged on the operation railing frame. A second support wheel is arranged on the support beam frame. A third support wheel is arranged on the counterweight railing frame. The third support wheel is provided with an adjustment mechanism capable of adjusting the left and right positions. The first support wheel, the second support wheel and the third support wheel are respectively in rolling contact with the outer side, the top surface and the inner side of the bridge guardrail; A positioning ruler is arranged on the support beam frame or the operation railing frame, and the positioning ruler is of an L-shaped structure.

[0009] Further: The support beam frame or the operation railing frame is connected to the positioning ruler through a connecting rope, and the positioning ruler can move back and forth, left and right, and up and down.

[0010] Further: The support beam frame or the operation railing frame is connected to the positioning ruler through a transverse slide rail and a longitudinal slide rail, and the positioning ruler can move back and forth and left and right.

[0011] Further: A through hole is arranged on the counterweight railing frame. A screw rod is arranged on the wheel frame of the third support wheel. The screw rod passes through the through hole, and a fixing nut and a locking nut are arranged on the screw rod.

[0012] Further: A guide sleeve is arranged on the counterweight railing frame. A screw rod is arranged on the wheel frame of the third support wheel. The screw rod passes through the guide sleeve, and a fixing nut and a locking nut are arranged on the screw rod.

[0013] Further: A fixing plate is arranged on the counterweight railing frame. A through hole and a guide hole are arranged on the fixing plate. A screw rod and a guide rod are arranged on the wheel frame of the third support wheel. The screw rod and the guide rod respectively pass through the through hole and the guide hole, and a fixing nut and a locking nut are arranged on the screw rod.

[0014] The beneficial effects of the present utility model are:

[0015] 1. The operation railing frame of the present utility model adopts a surrounding frame structure, and the safety of the operators inside the surrounding frame is high, and there will be no safety accidents of falling due to slipping. In addition, the counterweight railing frame is provided with traveling wheels, which is convenient for moving back and forth and improves the repair efficiency.

[0016] 2. The present utility model is provided with a positioning ruler, which can delimit the operation punching positions on the outer side of the bridge guardrail, achieving accuracy and uniformity. In addition, the positioning ruler is connected to the support beam frame to prevent loss and dropping.

[0017] 3. The support wheels provided on the counterweight railing frame of the present utility model adopt an adjustable structure, which can adjust the position to meet the requirements of bridge guardrails with different thicknesses.

[0018] 4. The counterweight blocks of the present utility model adopt a combined structure, and different counterweight blocks are set according to the number and weight of the operators, which not only ensures safety but also reduces the power for movement.

[0019] 5. The present utility model is reasonably designed, flexible in movement and good in safety. It has a wide range of applications, is easy to promote and implement, and has good economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of a slidable working platform outside the bridge guardrail;

[0021] Figure 2 It is Figure 1 Another structural diagram of the adjustable roller in

[0022] Figure 3 It is Figure 1 The third structural diagram of the adjustable roller in

[0023] Figure 4 It is Figure 1 The structural diagram of another connection method of the positioning ruler in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Embodiment 1: Refer to Figure 1 , in the figure, 1 - working railing frame, 2 - support beam frame, 3 - first support wheel, 4 - positioning ruler, 5 - connecting rope, 6 - second support wheel, 7 - third support wheel, 8 - screw, 9 - counterweight block, 10 - counterweight railing frame, 17 - bridge guardrail.

[0025] A slidable working platform outside the bridge guardrail includes a support beam frame 2. An operating railing frame 1 is arranged on the outer side of the support beam frame 2, and a counterweight railing frame 10 is arranged on the inner side thereof. Among them: both the operating railing frame 1 and the counterweight railing frame 10 are fence - type square frame structures, which are respectively connected by four side frames and a bottom frame. When necessary, a side frame can be set in a structure form with an opening and closing door, which can be opened and closed and can also be locked when closed, facilitating the entry and exit of operators and the counterweight block 9. A walking wheel is arranged at the lower end of the counterweight railing frame 10. A first support wheel 3 is arranged on the operating railing frame 1, a second support wheel 6 is arranged on the support beam frame 2, and a third support wheel 7 is arranged on the counterweight railing frame 10. The third support wheel 7 is provided with an adjustment mechanism capable of adjusting the left - right position. The first support wheel 3, the second support wheel 6 and the third support wheel 7 are respectively in rolling contact with the outer side, the top surface and the inner side of the bridge guardrail 17; A positioning ruler 4 is arranged on the support beam 2 frame or the operating railing frame 1, and the positioning ruler 4 is an L - shaped structure.

[0026] The number of the three types of support wheels is determined by the size of the work fence 1, the support beam 2 and the counterweight fence 10. They can be set up in multiple layers, or multiple wheels can be set up at intervals in each layer, with stability as the basis. This is well known to those skilled in the art and will not be described in detail.

[0027] Preferred solution: The support beam 2 (can also be set on the work fence, determined according to actual conditions) is connected to the positioning ruler 4 through a connecting rope 5, and the positioning ruler 4 can move forward and backward, left and right, and up and down.

[0028] Preferred solution: A through hole is provided on the counterweight hurdle 10 (not shown in the figure, the through hole can be provided on the side frame), and a screw 8 is provided on the wheel frame of the third support wheel 7, the screw 8 passes through the through hole, and a fixing nut and a locking nut are provided on the screw 8.

[0029] When operation is required, the support beam 2 is placed on the top surface of the bridge guardrail 17, and supported and moved by the second support wheel 6. The work barrier 1 is located on the outside of the bridge guardrail 17 and the first support wheel 3 is in contact with the outer side of the bridge guardrail 17. The extended length of the third support wheel 7 is adjusted and locked by the fixing nut and the locking nut, so that the third support wheel 7 is in rolling contact with the inner side of the bridge guardrail 17. The maintenance personnel enter the work barrier 1 and set the corresponding counterweight blocks 9 in advance according to the number and weight of the maintenance personnel to ensure safety.

[0030] The operator can work on the outer side of the bridge guardrail 17 by standing in the work fence 1. When positioning is required, the operator can hold the positioning ruler 4 and position it on the outer side of the bridge guardrail, which is very convenient. After positioning is completed, the positioning ruler 4 will not fall due to the effect of the connecting rope 5.

[0031] After one section is installed, the support beam 2 is manually pushed forward to carry out the outer side operation of the next section. Similarly, the entire outer side operation can be completed. After the construction is completed, the operator comes out of the work frame 1 and adjusts the third support wheel 7 in reverse to make it disengage from the inner side of the bridge guardrail 17, and then the entire work platform can be evacuated from the bridge guardrail 17.

[0032] Example 2: See Figure 2 In the figure, 11-guide sleeve, this embodiment is basically the same as the first embodiment, and the similarities are not repeated. The difference is that: a guide sleeve 11 is provided on the counterweight hurdle frame 10, and the guide sleeve 11 can be provided on the side frame (not shown in the figure), and a screw rod 8 is provided on the wheel frame of the third support wheel 7, and the screw rod 8 passes through the guide sleeve 11, and a fixing nut and a locking nut are provided on the screw rod 8.

[0033] By setting the guiding sleeve 11, the screw rod 8 can be located therein, reducing the cantilever distance of the screw rod 8 and improving the stability of the movement of the third supporting wheel 7.

[0034] Embodiment 3: Refer to Figure 3 , in the figure, 12 - guiding column, 13 - fixed disk. This embodiment is basically the same as Embodiment 1, and the same parts will not be repeated. The differences are as follows: A fixed disk 13 is provided on the counterweight railing 10 (not shown in the figure, and this fixed disk can be provided on the side frame). Through holes and guiding holes are provided on the fixed disk 13. A screw rod 8 and a guiding rod 12 are provided on the wheel frame of the third supporting wheel 7. The screw rod 8 and the guiding rod 12 respectively pass through the through hole and the guiding hole. And, fixing nuts and locking nuts are provided on the screw rod 8.

[0035] By adopting the cooperation of multiple guiding rods 12 and guiding holes, it can not only guide but also reduce the cantilever force of the screw rod 8, improving the stability of the movement of the third supporting wheel 7.

[0036] Embodiment 4: Refer to Figure 4 , in the figure, 14 - transverse slide rail, 15 - fixed seat, 16 - longitudinal slide rail, 18 - connecting rod. This embodiment is basically the same as Embodiment 1, and the same parts will not be repeated. The differences are as follows: A fixed seat 15 is provided on the support beam frame 2 or the working railing 1. A sliding fit is provided between the fixed seat 15 and the longitudinal slide rail 16 (a dovetail guide pair is provided therebetween), and a sliding fit is also provided between the longitudinal slide rail 16 and the transverse slide rail 14 (a dovetail guide pair is provided therebetween). And the longitudinal slide rail 14 is connected to the positioning ruler 4 (a connecting rod 18 can be used, or other connection methods can also be adopted), finally enabling the positioning ruler 4 to move forward and backward, left and right, realizing approaching and moving away from the outer side of the bridge guardrail 17 and moving back and forth along the outer side.

[0037] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Any simple modification made according to the technical essence of the present invention still belongs to the scope of the technical solution of the present invention.

Claims

1. A slidable working platform on the outer side of a bridge guardrail, comprising a support beam frame, wherein a working railing frame is arranged on the outer side of the support beam frame, and a counterweight railing frame is arranged on the inner side thereof. The characteristics are as follows: The operation railing frame and the counterweight railing frame are both fence-type square frame structures, which are respectively connected by four side frames and a bottom frame. A walking wheel is provided at the lower end of the counterweight railing frame. A first support wheel is provided on the operation railing frame. A second support wheel is provided on the support beam frame. A third support wheel is provided on the counterweight railing frame. The third support wheel is provided with an adjustment mechanism capable of adjusting the left and right positions. The first support wheel, the second support wheel and the third support wheel are respectively in rolling contact with the outer side, the top surface and the inner side of the bridge guardrail; A positioning ruler is provided on the support beam frame or the operation railing frame, and the positioning ruler is an L-shaped structure.

2. The movable working platform on the outer side of the bridge guardrail according to claim 1, wherein: The support beam frame or the operation railing frame is connected to the positioning ruler through a connecting rope, and the positioning ruler can move forward and backward, left and right, and up and down.

3. A slidable working platform on the outer side of a bridge guardrail according to claim 1, characterized in that: The support beam frame or the operation railing frame is connected to the positioning ruler through a transverse slide rail and a longitudinal slide rail, and the positioning ruler can move forward and backward, left and right.

4. The movable working platform on the outer side of the bridge guardrail according to claim 1 is characterized in that: A through hole is provided on the counterweight railing frame. A screw rod is provided on the wheel frame of the third support wheel. The screw rod passes through the through hole, and a fixing nut and a locking nut are provided on the screw rod.

5. A slidable working platform on the outer side of a bridge guardrail according to claim 1, characterized in that: A guide sleeve is provided on the counterweight railing frame. A screw rod is provided on the wheel frame of the third support wheel. The screw rod passes through the guide sleeve, and a fixing nut and a locking nut are provided on the screw rod.

6. The movable working platform on the outer side of the bridge guardrail according to claim 1, characterized in that: A fixing plate is provided on the counterweight railing frame. A through hole and a guide hole are provided on the fixing plate. A screw rod and a guide rod are provided on the wheel frame of the third support wheel. The screw rod and the guide rod respectively pass through the through hole and the guide hole, and a fixing nut and a locking nut are provided on the screw rod.

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