A construction operation platform for pier hanging fence

Abstract

The present invention discloses an operation platform for the construction of a bridge pier hanging fence and a construction method thereof, comprising a bridge pier, two first fixing frames and two second fixing frames, wherein the first fixing frame and the second fixing frame are connected at the front to form a square platform frame arranged around the bridge pier, the two ends of the second fixing frame are slidably connected to sliders through sliding grooves, the middle parts of the two first fixing frames are fixedly connected to a motor through bolts, the output shaft of the motor is connected to a transmission mechanism, the transmission mechanism and the fixed anchor are connected by a steel wire rope, the motor drives the transmission mechanism to reel in the steel wire rope to lift and lower the first fixing frame, the middle parts of the bottom surfaces of the first fixing frame and the second fixing frame are fixedly connected to a guide wheel mechanism that is in sliding contact with the side wall of the bridge pier; the present invention balances the horizontal force generated by the steel wire rope through the setting of the guide wheel mechanism, so that the operation platform is more stable during the lifting process, and at the same time, the contact between the guide wheel mechanism and the pier body prevents the operation platform from shaking.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge pier hanging fence construction, and in particular to a bridge pier hanging fence construction operation platform and a construction method. Background Art

[0002] After the construction of the railway bridge is completed and the railway is in normal operation, the pier top supports need to be inspected and maintained regularly. Since there is no space for maintenance personnel to work on the railway piers, a pier top hanging fence must be installed after the pier construction is completed to provide space for support inspection and maintenance operations.

[0003] In the existing technology, a construction operation platform is used to install the hanging fence. The construction operation platform consists of a simple frame around it, a wire rope and a winch. The construction operation platform is directly lifted to the designed position by a crane, hung on the top of the pier by a wire rope, and finally the platform is leveled by a winch. This method has the following defects: 1. There is no fixing device between the operation platform and the pier body, and there is a certain gap. The platform is prone to shaking during use, causing safety risks. 2. The operation platform is hoisted to the top of the pier by a crane as a whole, and the hoisting risk is high. For bridge piers with a larger height, it cannot be directly hoisted; 3. The operation platform is hung on the top of the pier by a wire rope and is not fixed to the top of the pier, which poses a certain safety risk. Summary of the Invention

[0004] Based on the above description, the present invention provides a pier hanging fence construction operation platform and a construction method to solve the problems encountered in actual use.

[0005] The technical solution of the present invention to solve the above technical problems is as follows:

[0006] The cam frame is a kind of cam frame of the present invention, and its upper and lower ends are fixed on the cam frame, and its lower ends are fixed on the cam frame. The cam frame is a kind of cam frame of the present invention, and its upper and lower ends are fixed on the cam frame. The cam frame is a kind of cam frame of the present invention, and its upper and lower ends are fixed on the cam frame. The cam frame is a kind of cam frame of the present invention, and its upper and lower ends are fixed on the cam frame.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, the transmission mechanism includes a driving gear, a driven gear, a driving shaft, a shaft seat, and a turntable arranged on a first fixed frame, the driving gear is connected to the output shaft of the motor, the driving gear and the driven gear are engaged with each other, the driven gear is fixedly connected to the middle part of the driving shaft, the driving shaft is rotatably connected to two shaft seats symmetrically arranged about the driven gear, the shaft seats are fixedly connected to the outer wall of the first fixed frame, both ends of the driving shaft are fixedly connected to the turntable, and a steel wire rope is wound around the turntable.

[0009] Furthermore, the first fixed frame is slidably connected to an axis frame, and the axis frame is fixedly connected to a regular hexagonal axis on the side facing the turntable, and a groove with the same shape as the regular hexagonal axis is provided on the side wall of the turntable, and a vertically arranged pull rod is slidably connected to the axis frame, and a lifting handle is fixedly connected to the top end of the pull rod, and a pressure block is fixedly connected to the bottom end of the pull rod, and the pressure block is slidably connected in the axis frame, and the pressure block is fixedly connected to the bottom end of the first spring mounted on the pull rod, and the top end of the first spring is fixedly connected to the axis frame.

[0010] Furthermore, the slider includes a slider body, a pad and a positioning block, the slider body is a right-angle block, and the top surface of the horizontal part of the slider body is provided with an upper groove, and the bottom surface of the horizontal part of the slider body is provided with a lower groove, and the slider body is clamped on the first fixed frame through the lower groove, and the horizontal part of the slider body is slidably connected to a vertically arranged elastic tube, and the inside of the elastic tube is slidably connected to an elastic rod, the top end of the elastic rod extends out of the elastic tube and is fixedly connected to the pad, the bottom end of the elastic tube is fixedly connected to the positioning block, and the positioning block is fixedly connected to the bottom end of a third spring arranged in the elastic tube, the top end of the third spring is fixedly connected to the bottom end of the elastic rod, and the top surface of the pad and the bottom surface of the positioning block are both provided with anti-slip grooves.

[0011] Furthermore, the guide wheel mechanism includes a connecting seat, a telescopic rod and a roller, the connecting seat is fixedly connected to the bottom surfaces of the first fixing frame and the second fixing frame, the connecting seat is fixedly connected to one end of the telescopic rod on the side facing the pier, the other end of the telescopic rod is fixedly connected to a fixing plate, and the fixing plate is fixedly connected to one end of a second spring sleeved on the telescopic rod, the other end of the second spring is fixedly connected to the connecting seat, and a roller is rotatably installed on the side wall of the fixing plate through a pin.

[0012] Furthermore, a fixing block fixedly connected to the first fixing frame is provided between the shaft frame and the turntable, and the fixing block is slidably connected to the regular hexagonal shaft.

[0013] Furthermore, a guide wheel is fixedly connected to the top side wall of the pier, and the guide wheel pushes the wire rope out of the edge of the pier.

[0014] This solution also provides a construction method for a pier hanging fence construction operation platform, comprising the following steps:

[0015] S1: When pouring concrete for the pier body, pre-buried bolt holes for fixed anchors and guide wheels are located on the top of the pier. After the concrete is cured and the formwork is removed, fixed anchors and guide wheels are installed in the reserved bolt holes. Wire ropes at four locations are then passed through the fixed anchors and guide wheels to anchor the wire ropes to the fixed anchors. At the same time, the two ends of the wire ropes are allowed to freely hang down to the ground through the guide wheels.

[0016] S2: Based on the size of the pier, a construction operation platform is assembled around the pier. Steel mesh is laid at the bottom of the first and second fixed frames to provide a construction working surface. Then, one end of the steel wire rope hanging to the ground is fixed to the first fixed frame, and the other end is fixed to the turntable.

[0017] S3: Raise the operating platform to a small height, check the connection and operation status of each part of the operating platform, and level the operating platform at the same time;

[0018] S4: Lift the operating platform to the designed position, push the shaft frame, and insert the regular hexagonal shaft into the turntable to temporarily lock the position of the operating platform.

[0019] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0020] 1. A guide wheel mechanism is set at the bottom of the operating platform to balance the horizontal reaction force generated by the wire rope and ensure the stability of the operating platform during the lifting process. At the same time, the contact between the guide wheel mechanism and the bridge pier can reduce the shaking of the operating platform during use and improve its wind resistance.

[0021] 2. Fixed anchors and guide wheels are set on the pier top. The wire rope is fixed on the fixed anchor, which improves the safety of the operating platform. At the same time, the setting of the guide wheel avoids the risk of breakage caused by friction between the wire rope and the edge of the pier top.

[0022] 3. Through the power device of the operating platform, the operating platform can be easily lifted and lowered along the pier body, avoiding the risk of the traditional method of lifting the operating platform as a whole by a crane.

[0023] 4. The first fixing frame and the two second fixing frames are connected by a slider, which can facilitate the adjustment of the frame size and is suitable for the construction of piers of different sizes. At the same time, the frame can be easily installed and disassembled, thereby improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of a bridge pier hanging fence construction operation platform;

[0025] Figure 2for Figure 1 A schematic structural diagram of the first fixing frame;

[0026] Figure 3 for Figure 2 A partial enlarged view of part A;

[0027] Figure 4 for Figure 1 Schematic diagram of the structure of the middle guide wheel mechanism;

[0028] Figure 5 for Figure 1 A schematic structural diagram of the second fixing frame;

[0029] Figure 6 for Figure 1 Schematic diagram of the structure of the middle slider;

[0030] Figure 7 for Figure 6 Cross-sectional view of the middle slider.

[0031] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0032] 1. Pier; 2. First fixed frame; 3. Guide wheel; 4. Fixed anchor; 5. Second fixed frame; 6. Guide wheel mechanism; 61. Connecting seat; 62. Telescopic rod; 63. Roller; 64. Fixed plate; 65. Second spring; 8. Axle frame; 9. Fixed block; 10. Regular hexagonal shaft; 11. Turntable; 12. Axle seat; 13. Motor; 14. Driving gear; 15. Driven gear; 16. Drive shaft; 17. Pressure block; 18. Pull rod; 19. Lifting handle; 20. First spring; 21. Slider; 211. Slider body; 212. Lower groove; 213. Upper groove; 214. Pad; 215. Elastic rod; 216. Third spring; 217. Elastic cylinder; 218. Positioning block; 22. Slide groove. DETAILED DESCRIPTION

[0033] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings provide embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0035] It will be understood that spatial relational terms such as "under," "beneath," "beneath," "under," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be understood that in addition to the orientations shown in the figures, spatial relational terms also include different orientations of the device in use and operation. For example, if the device in the drawings is turned over, the element or feature described as "under" or "beneath" or "beneath" the other elements will be oriented as "over" the other elements or features. Thus, the exemplary terms "under" and "under" may include both the above and below orientations. In addition, the device may also include alternative orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0036] See also Figures 1 to 7 In an embodiment of the present invention, a bridge pier hanging fence construction operation platform includes a bridge pier 1, two first fixing frames 2 and two second fixing frames 5. The first fixing frame 2 and the second fixing frame 5 constitute a square platform frame arranged around the bridge pier 1. A slide groove 22 is opened on the outer wall of the second fixing frame 5, and the two ends of the second fixing frame 5 are slidably connected with a slider 21 through the slide groove 22. The size of the frame can be adjusted by setting the slider 21 to be suitable for bridge piers of different sizes. The second fixing frame 5 is placed on the first fixing frame 2, and the tops of the first fixing frame 2 and the second fixing frame 5 are tied together by a strap. The middle parts of the two first fixing frames 2 are fixedly connected with an electric Machine 13, the output shaft of the motor 13 is fixedly connected to a driving gear 14, the driving gear 14 and the driven gear 15 are meshed with each other, the driven gear 15 is fixedly connected to the middle of the driving shaft 16, the driving shaft 16 is rotatably connected to two shaft seats 12 symmetrically arranged about the driven gear 15, the shaft seats 12 are fixedly connected to the outer wall of the first fixed frame 2, both ends of the driving shaft 16 are fixedly connected to a turntable 11, a steel wire rope is wound around the turntable 11, and the end of the steel wire rope is fixedly connected to the first fixed frame 2 after passing through the fixed anchor 4, the fixed anchor 4 is fixedly connected to the top surface of the pier 1 by bolts, and the middle of the bottom surface of the first fixed frame 2 and the second fixed frame 5 are fixedly connected to the guide wheel mechanism 6.

[0037] It should be noted that the motors 13 on the two first fixed frames 2 are controlled to work synchronously through PLC technology, thereby realizing the synchronous lifting function of the two first fixed frames 2. In addition, the present invention improves the stability of the lifting process by setting the guide wheel mechanism 6 to balance the horizontal reaction force generated by the wire rope. At the same time, by allowing the guide wheel mechanism 6 to be in contact and connected with the pier 1, the two fixed frames and the pier 1 are formed into a whole, reducing the shaking during use and improving the wind resistance.

[0038] A guide wheel 3 is fixedly connected to the top side wall of the pier 1. The setting of the guide wheel 3 can prevent the steel wire rope from contacting the pier, thereby preventing the steel wire rope from breaking due to friction between the top of the pier 1 and the steel wire rope.

[0039] The slider 21 includes a slider body 211, a pad 214 and a positioning block 218. The slider body 211 is a right-angle block, and the top surface of the horizontal part of the slider body 211 is provided with an upper groove 213, and the bottom surface of the horizontal part of the slider body 211 is provided with a lower groove 212. The slider body 211 is clamped on the first fixing frame 2 through the lower groove 212. The horizontal part of the slider body 211 is slidably connected to a vertically arranged elastic tube 217, and the elastic tube 217 is internally slidably connected to an elastic rod 215. The top end of the elastic rod 215 extends out of the elastic tube 217 and is fixedly connected to the pad 214. The bottom end of the elastic tube 217 is fixedly connected to the positioning block 218, and the positioning block 218 is fixed to the first fixing frame 2. The bottom end of the third spring 216 disposed in the elastic tube 217 is fixedly connected, the top end of the third spring 216 is fixedly connected to the bottom end of the elastic rod 215, and the top surface of the pad 214 and the bottom surface of the positioning block 218 are both provided with anti-slip grooves. In actual use, through the setting of the slider 21, when the second fixing frame 5 is set on the first fixing frame 2, the second fixing frame 5 presses the slider 21 on the first fixing frame 2 under the action of its own weight. At this time, the third spring 216 is in a compressed state, and the pad 214 and the positioning block 218 are respectively fixed to the first fixing frame 2 and the second fixing frame 5. The compression action of the third spring 216 fixes the first fixing frame 2 and the second fixing frame 5.

[0040] The guide wheel mechanism 6 includes a connecting seat 61 and a roller 63. The connecting seat 61 is fixedly connected to the bottom surfaces of the first fixing frame 2 and the second fixing frame 5. The connecting seat 61 is fixedly connected to one end of the telescopic rod 62 on the side facing the pier 1. The other end of the telescopic rod 62 is fixedly connected to a fixing plate 64, and the fixing plate 64 is fixedly connected to one end of a second spring 65 sleeved on the telescopic rod 62. The other end of the second spring 65 is fixedly connected to the connecting seat 61. The roller 63 is rotatably installed on the side wall of the fixing plate 64 through a pin.

[0041] It should be noted that, by providing the telescopic rod 62 and the second spring 65 , the roller 63 can be closely attached to the outer wall of the pier 1 , thereby ensuring the stability of the operating platform during the lifting process.

[0042] The first fixed frame 2 is slidably connected to the shaft frame 8, and the shaft frame 8 is fixedly connected to a regular hexagonal shaft 10 on one side facing the turntable 11, and a groove of the same shape as the regular hexagonal shaft 10 is opened on the side wall of the turntable 11. When the regular hexagonal shaft 10 is inserted into the groove, the turntable 11 can be locked and fixed, thereby improving the safety of the operating platform. A vertically arranged pull rod 18 is slidably connected to the shaft frame 8, and a lifting handle 19 is fixedly connected to the top of the pull rod 18. A pressure block 17 is fixedly connected to the bottom end of the pull rod 18, and the pressure block 17 is slidably connected to the shaft frame 8. The pressure block 17 is fixedly connected to the bottom end of the first spring 20 sleeved on the pull rod 18, and the top end of the first spring 20 is fixedly connected to the shaft frame 8. The pressure block 17 is pressed down by the action of the first spring 20, so that the shaft frame 8 is fixed to the first fixed frame 2. Through the above design, the shaft frame 8 can be stopped and used on the first fixed frame 2.

[0043] A fixing block 9 fixedly connected to the first fixing frame 2 is provided between the shaft frame 8 and the turntable 11, and the fixing block 9 is slidably connected to the regular hexagonal shaft 10. Through the setting of the fixing block 9, the overall strength of the regular hexagonal shaft 10 is improved, thereby improving the locking effect of the regular hexagonal shaft 10 on the turntable 11 and avoiding deformation of the regular hexagonal shaft 10 during the locking process.

[0044] A construction method of a bridge pier hanging fence construction operation platform comprises the following steps:

[0045] Step 1: When pouring the pier body concrete, pre-embed the bolt holes for the fixed anchor 4 and the guide wheel 3 at the top of the pier. After the concrete is cured and the formwork is removed, the fixed anchor 4 and the guide wheel 3 are installed at the reserved bolt hole positions simultaneously. Then, the steel wire ropes at four positions are passed through the fixed anchor 4 and the guide wheel 3 to anchor the steel wire ropes on the fixed anchor 4. At the same time, the two ends of the steel wire ropes hang freely to the ground through the guide wheel 3.

[0046] Step 2: Based on the size of the pier, a construction platform is assembled around the pier. Expanded steel mesh is laid underneath the first and second fixed frames 2 and 5 to provide a construction work surface. A steel wire rope, lowered to the ground, is then secured to the first fixed frame 2 at one end and the turntable 11 at the other.

[0047] Step 3: Raise the operating platform to a small height, check the connection and operation status of each part of the operating platform, and level the operating platform at the same time.

[0048] Step 4: Lift the operating platform to the designed position, push the shaft frame 8, and insert the regular hexagonal shaft 10 into the turntable 11 to temporarily lock the position of the operating platform.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A bridge pier hanging fence construction operation platform, comprising a bridge pier (1), two first fixing frames (2) and two second fixing frames (5), characterized in that: The first fixing frame (2) and the second fixing frame (5) are connected end to end to form a square platform frame arranged around the bridge pier (1); a sliding groove (22) is provided on the bottom outer wall of the second fixing frame (5), and the two ends of the second fixing frame (5) are slidably connected to the slider (21) through the sliding groove (22); the tops of the first fixing frame (2) and the second fixing frame (5) are tied together by a strap; the middle parts of the two first fixing frames (2) are fixedly connected to the motor (13) by bolts; a fixing anchor (4) is provided on the top surface of the bridge pier; a transmission mechanism is connected to the output shaft of the motor (13); the transmission mechanism and the fixing anchor (4) are connected by a steel wire rope; the motor drives the transmission mechanism to reel in the steel wire rope to lift and lower the first fixing frame (2); the middle parts of the bottom surfaces of the first fixing frame (2) and the second fixing frame (5) are fixedly connected to the guide wheel mechanism (6) that is in sliding contact with the side wall of the bridge pier (1); The transmission mechanism comprises a driving gear (14), a driven gear (15), a driving shaft (16), a shaft seat (12) and a turntable (11) arranged on a first fixed frame (2), wherein the driving gear (14) is connected to the output shaft of the motor (13), the driving gear (14) and the driven gear (15) are meshed with each other, the driven gear (15) is fixedly connected to the middle of the driving shaft (16), the driving shaft (16) is rotatably connected to two shaft seats (12) symmetrically arranged about the driven gear (15), the shaft seats (12) are fixedly connected to the outer wall of the first fixed frame (2), both ends of the driving shaft (16) are fixedly connected to the turntable (11), and a steel wire rope is wound around the turntable (11); The first fixed frame (2) is slidably connected to a shaft frame (8), and the shaft frame (8) is fixedly connected to a regular hexagonal shaft (10) on the side facing the turntable (11), and a groove with the same shape as the regular hexagonal shaft (10) is provided on the side wall of the turntable (11), and a vertically arranged pull rod (18) is slidably connected to the shaft frame (8), and a lifting handle (19) is fixedly connected to the top of the pull rod (18), and a pressure block (17) is fixedly connected to the bottom end of the pull rod (18), and the pressure block (17) is slidably connected in the shaft frame (8), and the pressure block (17) is fixedly connected to the bottom end of a first spring (20) sleeved on the pull rod (18), and the top end of the first spring (20) is fixedly connected to the shaft frame (8); The slider (21) includes a slider body (211), a pad (214) and a positioning block (218). The slider body (211) is a right-angle block, and the top surface of the horizontal portion of the slider body (211) is provided with an upper groove (213). The bottom surface of the horizontal portion of the slider body (211) is provided with a lower groove (212). The slider body (211) is clamped on the first fixing frame (2) through the lower groove (212). The horizontal portion of the slider body (211) is slidably connected to a vertically arranged elastic tube (217). The elastic tube (218) is provided with a plurality of grooves. 17) is slidably connected to an elastic rod (215) inside, the top end of the elastic rod (215) extends out of the elastic tube (217) and is fixedly connected to a pad (214) above, the bottom end of the elastic tube (217) is fixedly connected to a positioning block (218), and the positioning block (218) is fixedly connected to the bottom end of a third spring (216) arranged in the elastic tube (217), the top end of the third spring (216) is fixedly connected to the bottom end of the elastic rod (215), and the top surface of the pad (214) and the bottom surface of the positioning block (218) are both provided with anti-slip grooves.

2. A pier hanging fence construction operation platform according to claim 1, characterized in that: The guide wheel mechanism (6) includes a connecting seat (61), a telescopic rod (62) and a roller (63), wherein the connecting seat (61) is fixedly connected to the bottom surfaces of the first fixing frame (2) and the second fixing frame (5), and the connecting seat (61) is fixedly connected to one end of the telescopic rod (62) on the side facing the bridge pier (1), and the other end of the telescopic rod (62) is fixedly connected to a fixing plate (64), and the fixing plate (64) is fixedly connected to one end of a second spring (65) sleeved on the telescopic rod (62), and the other end of the second spring (65) is fixedly connected to the connecting seat (61), and the roller (63) is rotatably mounted on the side wall of the fixing plate (64) through a pin.

3. A pier hanging fence construction operation platform according to claim 1, characterized in that: A fixed block (9) fixedly connected to the first fixed frame (2) is provided between the shaft frame (8) and the turntable (11), and the fixed block (9) is slidably connected to the regular hexagonal shaft (10).

4. A pier hanging fence construction operation platform according to claim 1, characterized in that: A guide wheel (3) is fixedly connected to the top side wall of the pier (1), and the guide wheel (3) pushes the steel wire rope out of the edge of the pier (1).

5. A method for constructing a pier hanging fence construction operation platform according to any one of claims 1 to 4, comprising the following steps: S1: When pouring concrete for the pier body, pre-buried bolt holes for the fixed anchor (4) and the guide wheel (3) are placed on the top of the pier. When the concrete is cured and the formwork is removed, the fixed anchor (4) and the guide wheel (3) are installed at the reserved bolt hole positions simultaneously. Then, the steel wire ropes at four positions are passed through the fixed anchor (4) and the guide wheel (3) so that the steel wire ropes are anchored on the fixed anchor (4). At the same time, the two ends of the steel wire ropes are freely dropped to the ground through the guide wheel (3); S2: According to the size of the bridge pier, a construction operation platform is assembled around the bridge pier, and a steel plate mesh is laid at the bottom of the first fixed frame (2) and the second fixed frame (5) to provide a construction working surface. Then, one end of the steel wire rope hanging to the ground is fixed to the first fixed frame (2), and the other end is fixed to the turntable (11); S3: Raise the operating platform to a small height, check the connection and operation status of each part of the operating platform, and level the operating platform at the same time; S4: The operating platform is lifted to the designed position, and the shaft frame (8) is pushed so that the regular hexagonal shaft (10) is inserted into the turntable (11), thereby temporarily locking the position of the operating platform.

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