A safety operation platform for pouring concrete with crash barriers

Abstract

This application relates to a safe working platform for pouring concrete for crash barriers, belonging to the field of bridge engineering. It includes an external hanging basket, a cross-connecting frame, and a fixing frame. The fixing frame is fixedly connected to the bridge deck and is located on the side of the formwork closer to the center of the bridge deck. The external hanging basket is located on the side of the formwork away from the center of the bridge deck. One end of the cross-connecting frame is fixed relative to the external hanging basket, and the other end is slidably connected to the fixing frame in the direction of the bridge deck's length. This application, through the fixing frame and cross-connecting frame, ensures that the external hanging basket, located outside the formwork, is relatively fixed to the bridge deck. Operators can perform construction work on the external hanging basket at construction points near the edge of the bridge deck, thus improving construction safety.

Description

Technical Field

[0001] This application relates to the field of bridge engineering, and in particular to a safe working platform for pouring anti-collision guardrails. Background Technology

[0002] Bridge crash barriers are guardrails installed on bridges. They are important maintenance and safety facilities for highways and serve as a vital barrier to protect people's lives. The purpose of bridge crash barriers is to prevent out-of-control vehicles from going off the bridge. They also prevent vehicles from breaking through, passing under, or overturning the bridge, and enhance the aesthetics of the bridge structure. To ensure the stability and sturdiness of the crash barriers, they are mostly constructed using cast-in-place concrete.

[0003] Before pouring concrete, a casting formwork system needs to be erected at the edge of the bridge deck. This system consists of two sets of formwork, with multiple formwork panels in each set arranged along the length of the bridge. The space between the two sets of formwork forms is used for the concrete. The formwork is fixedly connected to the bridge deck. One set of formwork is relatively close to the center of the bridge, while the other set is closer to the edge of the bridge deck.

[0004] When constructing the formwork near the edge of the bridge deck, the operator is sometimes in a position even closer to the edge of the bridge deck, which increases the safety risk. Utility Model Content

[0005] To address the aforementioned issues, this application provides a safe working platform for pouring concrete for crash barriers.

[0006] The technical solution adopted in this application for a safety operation platform for pouring concrete for crash barriers is as follows:

[0007] A safety operation platform for pouring concrete for a crash barrier includes an external hanging basket, a cross-connecting frame, and a fixed frame. The fixed frame is fixedly connected to the bridge deck and is located on the side of the template closer to the middle of the bridge deck. The external hanging basket is located on the side of the template away from the middle of the bridge deck. One end of the cross-connecting frame is fixed relative to the external hanging basket, and the other end is slidably connected to the fixed frame in the direction of the length of the bridge deck.

[0008] Preferably, the bridging frame includes a bridging crossbar, the length direction of which is perpendicular to the length direction of the bridge deck, and a suspension ring for the bridging crossbar to pass through is fixedly connected to the outer hanging basket.

[0009] Preferably, the suspension ring is threaded with a positioning bolt, and the crossbar has multiple positioning grooves arranged along the length of the crossbar. The end of the positioning bolt is inserted into the positioning groove.

[0010] Preferably, the outer hanging basket is rotatably equipped with clamping wheels, the rotation axis of the clamping wheels is horizontal and perpendicular to the length direction of the bridge deck, there are two clamping wheels distributed vertically, the wheel surfaces of the two clamping wheels are in contact with the upper and lower sides of the bridge deck respectively, and the outer hanging basket is provided with an adjustment component for adjusting the vertical position of the clamping wheels.

[0011] Preferably, the adjustment assembly includes an adjustment block, an adjustment screw, and an adjustment spring. The number of adjustment blocks is the same as the number of clamping wheels. Each clamping wheel is rotatably connected to an adjustment block. The adjustment block is vertically slidably connected to the outer basket. The adjustment screw is rotatably connected to one of the adjustment blocks and threadedly connected to the other adjustment block. One end of the adjustment spring is connected to one of the adjustment blocks, and the other end is connected to the outer basket.

[0012] Preferably, the fixing frame is a fixed channel steel, which is fixedly connected to the bridge deck by anchor bolts. The length direction of the fixed channel steel is parallel to the length direction of the bridge deck, and the groove of the fixed channel steel faces away from the outer hanging basket. The cross-connecting frame also includes a guide wheel, a mounting block, and a connecting rod. The guide wheel is rotatably connected to the mounting block and is embedded in the groove of the fixed channel steel. One end of the connecting rod is hinged to the mounting block, and the other end is hinged to the end of the cross-connecting crossbar away from the outer hanging basket.

[0013] Preferably, a straddle wheel is coaxially rotatably mounted on the crossbar, and the wheel surface of the straddle wheel rolls against the top edge of the template.

[0014] Preferably, the fixed channel steel has multiple brake holes arranged along the length of the fixed channel steel, and a brake pin passes through the brake holes on the fixed channel steel. The length direction of the brake pin is perpendicular to the axis of rotation of the guide wheel.

[0015] This application includes at least one of the following beneficial technical effects:

[0016] 1. By setting up the external hanging basket and the cross-connecting frame, the external hanging basket is connected to the fixed frame located in the middle part of the bridge deck through the cross-connecting frame, and the cross-connecting frame carries the external hanging basket to move along the laying direction of the formwork. The operator can carry out construction work on the formwork near the edge of the bridge deck on the external hanging basket.

[0017] 2. By setting up crossbars and straddle wheels, the crossbar is erected above the formwork, and the formwork erected on the bridge deck can also be supported by the crossbar, thus improving the stability of the crossbar. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the safety operation platform for pouring concrete for the crash barrier, as shown in the embodiment of this application. The horizontal direction represents the width of the bridge deck.

[0019] Figure 2 This is a structural schematic diagram in the embodiments of this application, illustrating the position bolt passing through the suspension ring.

[0020] Figure 3 This is a schematic diagram illustrating the structure of the adjustment component in the embodiments of this application.

[0021] Figure 4 This is a schematic diagram illustrating the working principle of the brake pin in the embodiments of this application.

[0022] Explanation of reference numerals in the attached drawings: 1. Template; 11. Anchor bolt; 2. Fixing frame; 21. Brake hole; 22. Brake pin; 3. External basket; 31. Suspension ring; 32. Positioning bolt; 33. Clamping wheel; 34. Adjustment assembly; 341. Adjustment block; 342. Adjustment screw; 343. Adjustment spring; 4. Crossover frame; 41. Crossover crossbar; 411. Positioning groove; 412. Riding wheel; 42. Connecting rod; 43. Guide wheel; 44. Mounting block. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0024] This application discloses a safe working platform for pouring concrete for crash barriers, such as... Figure 1 As shown, it includes an external hanging basket 3, a cross-connector 4, and a fixed frame 2. The fixed frame 2 is fixedly connected to the bridge deck. The external hanging basket 3 is located on the side of the template 1 away from the middle of the bridge deck and at the edge of the bridge deck, providing a construction platform for the operator at the edge of the bridge deck. The cross-connector 4 connects the external hanging basket 3 and the fixed frame 2 and enables the external hanging basket 3 to move along the fixed frame 2.

[0025] like Figure 1 As shown, for the guardrail on one side of the bridge deck, there are two rows of anti-collision guardrail casting templates 1, each row with multiple templates 1, and the two rows of templates 1 are arranged side by side in a one-to-one correspondence. When constructing the template 1 system, firstly, the corresponding templates 1 are fixed relative to each other using tie bolts, and then the templates 1 near the middle of the bridge deck are fixed to the bridge deck using the fixing structure of the template 1 system. In this embodiment, the fixing structure is a tie rod and an anchor bolt 11. One end of the tie rod is fixed to the bridge deck by the anchor bolt 11, and the other end is fixed to the plate surface of the template 1. For the row of templates 1 near the edge of the bridge deck, it will also be fixed to the bridge deck by the anchor bolt 11. The anchor bolt 11 is located between the template 1 and the edge of the bridge deck, and the operator needs to be inside the outer hanging basket 3 to carry out the construction.

[0026] like Figure 1As shown, the fixing frame 2 is a fixed channel steel. The anchor bolts 11 below the diagonal tie rod also pass through the fixed channel steel, thereby fixing the fixed channel steel to the ground. The groove of the fixed channel steel faces away from the template 1. The bridging frame 4 includes a bridging crossbar 41, a connecting rod 42, a guide wheel 43, and a mounting block 44. The guide wheel 43 is embedded in the groove of the fixed channel steel, and the rotation axis of the guide wheel 43 passes through the groove of the fixed channel steel and is rotatably mounted on the mounting block 44. One end of the connecting rod 42 is hinged to the mounting block 44, and the other end is hinged to one end of the bridging crossbar 41. The hinge axis is parallel to the length direction of the fixed channel steel. The length direction of the bridging crossbar 41 is the width direction of the bridge deck. Two riding wheels 412 are coaxially rotatably mounted on the bridging crossbar 41. The wheel surface of a single riding wheel 412 rolls against the top edge of the template 1. Under the action of the guide wheel 43 and the riding wheel 412, the bridging frame 4 can move along the length direction of the bridge deck.

[0027] like Figure 1 and 2 As shown, both the crossbar 41 and the connecting rod 42 can be configured as two in the front and two in the back (not shown in the figure). The outer basket 3 is fixedly connected with a suspension ring 31 through which the crossbar 41 passes. The suspension ring 31 is vertically threaded with a positioning bolt 32. Multiple positioning grooves 411 are opened on the upper side of the crossbar 41. The multiple positioning grooves 411 are arranged along the length direction of the crossbar 41. When the end of the positioning bolt 32 is inserted into one of the positioning grooves 411, the outer basket 3 cannot move relative to the crossbar 41, that is, the two remain relatively fixed.

[0028] like Figure 1 and 3As shown, the suspension point of the crossbar 41 for the outer basket 3 is located at the top of the outer basket 3. In order to further improve the stability of the bottom of the outer basket 3, four clamping wheels 33 are rotatably arranged on the outer basket 3. Each pair of clamping wheels 33 forms a group, and the two clamping wheels 33 in each group are arranged vertically. The wheel surfaces of the two clamping wheels 33 are in contact with the upper and lower sides of the bridge deck, respectively. The rotation axis of the clamping wheels 33 is horizontal and perpendicular to the length direction of the bridge deck. The outer basket 3 is equipped with an adjustment assembly 34 for adjusting the vertical position of the clamping wheels 33. The adjustment assembly 34 includes an adjustment block 341, an adjustment screw 342, and an adjustment spring 343. The number of adjustment blocks 341 and clamping wheels 33 is the same. Each clamping wheel 33 is rotatably connected to an adjustment block 341. The adjustment block 341 and the outer basket 3 are vertically slidably connected. The adjustment screw 342 is rotatably connected to the upper adjustment block 341 and threadedly connected to the lower adjustment block 341. One end of the adjustment spring 343 is connected to the upper adjustment block 341, and the other end is connected to the outer basket 3. By rotating the adjustment screw 342, the two clamping wheels 33 can move relative to each other, and the distance between them can be adjusted. The adjustment spring 343 is used to adjust the overall height position of the two clamping wheels 33 relative to the outer basket 3, so that the clamping wheels 33 can have a balanced clamping state on the upper and lower sides of the bridge surface.

[0029] like Figure 1 and 4 As shown, multiple brake holes 21 are provided on the fixed channel steel, and the multiple brake holes 21 are arranged along the length direction of the fixed channel steel. A brake pin 22 is inserted through the brake holes 21 on the fixed channel steel, and the length direction of the brake pin 22 is perpendicular to the axis of rotation of the guide wheel 43. In this embodiment, the brake pin has two pins, that is, the brake pin can be inserted into two brake holes 21 at the same time. The two pins are located on opposite sides of the guide wheel 43, so the guide wheel 43 cannot move back and forth. At this time, the cross-connector 4 cannot move relative to the fixed frame 2, and the outer basket 3 can also maintain a stable position, providing a safe construction environment for the operator. After the construction of one anchor bolt 11 connection point is completed, the brake pin 22 is removed, and the cross-connector 4 is moved to the next connection point for continued construction.

[0030] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A safety working platform for pouring concrete with anti-collision guardrails, characterized in that: It includes an external hanging basket (3), a cross-connector (4) and a fixed frame (2). The fixed frame (2) is fixedly connected to the bridge deck and the fixed frame (2) is located on the side of the template (1) near the middle of the bridge deck. The external hanging basket (3) is located on the side of the template (1) away from the middle of the bridge deck. One end of the cross-connector (4) is fixed relative to the external hanging basket (3) and the other end is slidably connected to the fixed frame (2). The sliding direction is the length direction of the bridge deck.

2. The anti-collision guardrail pouring safety operation platform according to claim 1, characterized in that: The bridging frame (4) includes a bridging crossbar (41), the length direction of which is perpendicular to the length direction of the bridge deck, and a suspension ring (31) is fixedly connected to the outer basket (3) for the bridging crossbar (41) to pass through.

3. The anti-collision guardrail pouring safety operation platform according to claim 2, characterized in that: The suspension ring (31) is threaded with a positioning bolt (32), and the crossbar (41) is provided with multiple positioning grooves (411). The multiple positioning grooves (411) are arranged along the length direction of the crossbar (41), and the end of the positioning bolt (32) is inserted into the positioning groove (411).

4. A safety working platform for pouring concrete with anti-collision guardrails according to any one of claims 1-3, characterized in that: The outer basket (3) is rotatably equipped with clamping wheels (33). The rotation axis of the clamping wheels (33) is horizontal and perpendicular to the length direction of the bridge deck. There are two clamping wheels (33) distributed vertically. The wheel surfaces of the two clamping wheels (33) are in contact with the upper and lower sides of the bridge deck respectively. The outer basket (3) is equipped with an adjustment component (34) for adjusting the vertical position of the clamping wheels (33).

5. A safety working platform for pouring concrete with a crash barrier as described in claim 4, characterized in that: The adjustment assembly (34) includes an adjustment block (341), an adjustment screw (342), and an adjustment spring (343). The number of adjustment blocks (341) and clamping wheels (33) is the same. Each clamping wheel (33) is rotatably connected to an adjustment block (341). The adjustment block (341) and the outer basket (3) are vertically slidably connected. The adjustment screw (342) is rotatably connected to one of the adjustment blocks (341) and threadedly connected to the other adjustment block (341). One end of the adjustment spring (343) is connected to one of the adjustment blocks (341), and the other end is connected to the outer basket (3).

6. A safety working platform for pouring concrete with a crash barrier according to claim 2 or 3, characterized in that: The fixing frame (2) is a fixed channel steel, which is fixedly connected to the bridge deck by anchor bolts (11). The length direction of the fixed channel steel is parallel to the length direction of the bridge deck. The slot of the fixed channel steel faces away from the outer hanging basket (3). The cross-connecting frame (4) also includes a guide wheel (43), a mounting block (44) and a connecting rod (42). The guide wheel (43) is rotatably connected to the mounting block (44). The guide wheel (43) is embedded in the slot of the fixed channel steel. One end of the connecting rod (42) is hinged to the mounting block (44), and the other end is hinged to the end of the cross-connecting crossbar (41) away from the outer hanging basket (3).

7. A safety working platform for pouring concrete for a crash barrier according to claim 6, characterized in that: A straddle wheel (412) is coaxially rotatably mounted on the crossbar (41), and the wheel surface of the straddle wheel (412) rolls against the top edge of the template (1).

8. A safety working platform for pouring concrete for a crash barrier according to claim 7, characterized in that: The fixed channel steel is provided with multiple brake holes (21), which are arranged along the length of the fixed channel steel. A brake pin (22) is inserted through the brake holes (21) on the fixed channel steel. The length of the brake pin (22) is perpendicular to the axis of rotation of the guide wheel (43).

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