Municipal road and bridge building box girder formwork construction device

Abstract

The utility model relates to the technical field of box girder formwork construction devices, and discloses a municipal road and bridge building box girder formwork construction device which comprises a supporting plate, the top of the supporting plate is fixedly connected with a lifting assembly, the top of the lifting assembly is provided with a winch, the top of the supporting plate is provided with a sliding assembly, and the sliding assembly is fixedly connected with the supporting plate. Supporting legs are fixedly connected to the bottom of the supporting plate; the lifting assembly comprises a U-shaped supporting frame. The hydraulic rod is started, so that the output end of the hydraulic rod drives the connecting plate to move upwards, the sliding column moves upwards along with the connecting plate through the fixing rod, and the sliding seat is driven to move upwards along with the sliding column through the first sliding block until the sliding seat moves to the height equal to that of the bottom of the inner formwork of the box girder. Therefore, the construction device can be adjusted according to the height of the box girder inner formwork, the situation that the box girder inner formwork falls off and is damaged due to the fact that the height of the box girder inner formwork is large after the box girder inner formwork is pulled out, and next use of the box girder inner formwork is affected is avoided, and then the reliability of the lifting assembly is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of box girder formwork construction device, and in particular to a box girder formwork construction device for municipal road and bridge construction. Background Technology

[0002] Box girder formwork is a special formwork used for pouring concrete box girders. It is widely used in bridge construction, especially in important projects such as highways, urban elevated roads, and rail transit.

[0003] Box girder formwork construction requires a winch to pull the inner formwork out from the inside of the box girder formwork. However, most existing box girder formwork construction devices are difficult to adjust according to the height of the inner formwork. As a result, the inner formwork is prone to falling and breaking after being pulled out, causing unnecessary losses. Furthermore, since there is no support at the bottom of the pulled-out end, the inner formwork is prone to losing balance during the pulling process, causing the end of the inner formwork to tilt up, which increases the working time of the operators and reduces work efficiency. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a construction device for box girder formwork in municipal road and bridge construction.

[0005] This utility model is achieved by the following technical solution: a municipal road and bridge building box girder formwork construction device, including a support plate, a lifting component fixedly connected to the top of the support plate, a winch provided at the top of the lifting component, a sliding component provided at the top of the support plate, and a support foot fixedly connected to the bottom of the support plate.

[0006] The lifting assembly includes a U-shaped support frame. A hydraulic rod is fixedly connected to the top of the inner wall of the U-shaped support frame. A connecting plate is fixedly connected to the output end of the hydraulic rod. Fixed rods are fixedly connected to both sides of the connecting plate. A sliding column is fixedly connected to the bottom of the fixed rod. A sliding block is fixedly connected to the bottom of the sliding column. A limit frame is slidably connected to the surface of the sliding block. A sliding seat is fixedly connected to the right side of the sliding block. A mounting seat is slidably connected to the surface of the sliding seat.

[0007] The above technical solution involves activating the hydraulic rod, which causes its output end to move the connecting plate upwards. This causes the sliding column to move upwards along with the fixed rod, and the sliding block moves the sliding seat upwards until the sliding seat is at the same height as the bottom of the box girder's inner formwork. This allows the construction device to be adjusted according to the height of the box girder's inner formwork, preventing the inner formwork from falling and being damaged due to its high pull-out height, thus affecting its future use and increasing the reliability of the lifting assembly.

[0008] As a further improvement to the above solution, a U-shaped support frame is fixedly connected to the top of the support plate, and two sliding columns are provided, which are symmetrically distributed around the fixed rod.

[0009] By using the above technical solution and setting two sliding seats, the inner template can be in a horizontal position after it is fully pulled out, thus avoiding the inner template from falling and being damaged due to lack of support at the end.

[0010] As a further improvement to the above solution, the surface of the sliding column is slidably connected to the top of the inner wall of the limiting frame, and the bottom of the limiting frame is fixedly connected to the top of the support plate.

[0011] As a further improvement to the above solution, the top of the sliding seat is fixedly connected to the bottom of the winch, and the bottom of the mounting seat is fixedly connected to the top of the support plate.

[0012] As a further improvement to the above solution, the sliding assembly includes a lead screw, a sliding block, a limiting frame, a lead screw, a limiting block, a baffle, a limiting rack, a rotating column, a spring, and a limiting groove formed in the limiting groove at the top of the inner wall of the limiting frame.

[0013] Through the above technical solution, by pulling the two rotating columns upward, the first and second limiting rack rings are engaged. Then, rotating the rotating columns causes the second lead screw to rotate as well, causing the baffle to move upward via the limiting block until the surface of the baffle contacts the bottom of the inner template. Subsequently, the rotating columns are released, allowing the first and second limiting rack rings to re-engage under the action of the spring, thus fixing the baffle. During the pulling out of the inner template, the first lead screw, threaded through the inner wall of the sliding block, slides towards the winch, preventing the inner template from being pulled out too far and causing the end of the inner template to warp, thus preventing the end of the inner template from getting stuck inside the box girder template, thereby improving the operator's work efficiency.

[0014] As a further improvement to the above solution, two sliding components are provided, which are symmetrically distributed around the support plate. The two sides of the lead screw are rotatably connected to the sliding grooves opened on the inner wall of the support plate.

[0015] As a further improvement to the above solution, the surface of the sliding block two is slidably connected to the sliding groove opened in the inner wall of the support plate, the bottom of the limiting rack ring one is meshed with the top of the limiting rack ring two, and the surface of the limiting rack ring one is slidably connected to the limiting groove opened in the top of the limiting frame two.

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

[0017] This invention features a lifting assembly. Specifically, by activating a hydraulic rod, the output end of which moves the connecting plate upward, causing the sliding column to move upward via the fixed rod. This, in turn, moves the sliding seat upward via the sliding block until the sliding seat is at the same height as the bottom of the box girder's inner formwork. This allows the construction device to be adjusted according to the height of the box girder's inner formwork, preventing the inner formwork from falling and being damaged due to excessive height after being pulled out, thus affecting its future use and increasing the reliability of the lifting assembly.

[0018] This invention utilizes a sliding assembly. Specifically, by pulling two rotating columns upwards, the first limiting rack ring is released from engagement with the second limiting rack ring by a compression spring. Rotating the rotating columns causes the second lead screw to rotate as well, moving the baffle upwards via the limiting block until its surface contacts the bottom of the inner template. Then, releasing the rotating columns allows the first and second limiting rack rings to re-engage under spring pressure, thus fixing the baffle. During the process of the winch pulling out the inner template, the pulled-out end of the inner template abuts against the left end of the baffle. This causes the lead screw, threaded through the inner wall of the sliding block, to slide towards the winch, preventing the inner template from warping due to excessive extension and avoiding it getting stuck inside the box girder template, thereby improving operator efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic cross-sectional view of the present invention.

[0021] Figure 3 This is a schematic diagram of the lifting component structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the sliding component structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the two cross-sectional structures of the limiting frame of this utility model;

[0024] Figure 6 This is a schematic diagram of the exploded structure of the limiting frame of this utility model.

[0025] Explanation of key symbols:

[0026] 1. Support plate; 2. Lifting assembly; 201. U-shaped support frame; 202. Hydraulic rod; 203. Connecting plate; 204. Fixed rod; 205. Sliding column; 206. Sliding block one; 207. Limiting frame one; 208. Sliding seat; 209. Mounting seat; 3. Winch; 4. Sliding assembly; 401. Lead screw one; 402. Sliding block two; 403. Limiting frame two; 404. Lead screw two; 405. Limiting block; 406. Baffle; 407. Limiting rack ring one; 408. Rotating column; 409. Spring; 410. Limiting rack ring two; 5. Support foot. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] Example:

[0029] Please combine Figure 1-6 This embodiment of a municipal road and bridge building box girder formwork construction device includes a support plate 1, a lifting assembly 2 fixedly connected to the top of the support plate 1, a winch 3 provided on the top of the lifting assembly 2, a sliding assembly 4 provided on the top of the support plate 1, and a support foot 5 fixedly connected to the bottom of the support plate 1.

[0030] The lifting assembly 2 includes a U-shaped support frame 201. A hydraulic rod 202 is fixedly connected to the top of the inner wall of the U-shaped support frame 201. A connecting plate 203 is fixedly connected to the output end of the hydraulic rod 202. Fixed rods 204 are fixedly connected to both sides of the connecting plate 203. A sliding column 205 is fixedly connected to the bottom of the fixed rod 204. A sliding block 206 is fixedly connected to the bottom of the sliding column 205. A limit frame 207 is slidably connected to the surface of the sliding block 206. A sliding seat 208 is fixedly connected to the right side of the sliding block 206. A mounting seat 209 is slidably connected to the surface of the sliding seat 208.

[0031] A U-shaped support frame 201 is fixedly connected to the top of the support plate 1. There are two sliding columns 205, which are symmetrically distributed around the fixed rod 204.

[0032] The surface of the sliding column 205 is slidably connected to the top of the inner wall of the limiting frame 207, and the bottom of the limiting frame 207 is fixedly connected to the top of the support plate 1.

[0033] The top of the sliding seat 208 is fixedly connected to the bottom of the winch 3, and the bottom of the mounting seat 209 is fixedly connected to the top of the support plate 1.

[0034] The sliding assembly 4 includes a lead screw 401, a sliding block 402 threadedly connected to the surface of the lead screw 401, a limit frame 403 fixedly connected to the top of the sliding block 402, a lead screw 404 threadedly connected to the inner wall of the limit frame 403, a limit block 405 threadedly connected to the surface of the lead screw 404, a baffle 406 fixedly connected to one end of the limit block 405, a limit rack ring 407 fixedly connected to the top of the lead screw 404, a rotating column 408 fixedly connected to the top of the limit rack ring 407, a spring 409 fixedly connected to the top of the limit rack ring 407, and a limit rack ring 410 provided in a limit groove opened at the top of the inner wall of the limit frame 403.

[0035] There are two sliding components 4, which are symmetrically distributed around the support plate 1. The two sides of the lead screw 401 are rotatably connected to the sliding grooves opened on the inner wall of the support plate 1.

[0036] The surface of sliding block 2 402 is slidably connected to the sliding groove opened in the inner wall of support plate 1, the bottom of limiting rack ring 1 407 is meshed with the top of limiting rack ring 2 410, and the surface of limiting rack ring 1 407 is slidably connected to the limiting groove opened in the top of limiting frame 2 403.

[0037] The implementation principle of the municipal road and bridge construction box girder formwork construction device in this application embodiment is as follows: During use, the sliding seat 208 (without the winch 3) is first placed at the outlet of the box girder inner formwork. Then, the sliding seat 208 is adjusted according to the height of the inner formwork. The hydraulic rod 202 is activated, causing its output end to move the connecting plate 203 upwards. The sliding column 205 also moves upwards via the fixed rod 204, and the sliding block 206 moves the sliding seat 208 upwards until it reaches the same height as the bottom of the box girder inner formwork. This allows the construction device to be adjusted according to the height of the box girder inner formwork, preventing the inner formwork from falling and being damaged due to its high pull-out height, thus increasing the reliability of the lifting components. Then, the hook of the winch 3 is fixed to the inner formwork, and the winch motor 3 is activated to pull the inner formwork out of the box girder formwork. After one end of the inner formwork is pulled out, the height of the baffle 406 is adjusted according to the height of the bottom of the inner formwork and the support plate 1 to ensure it is pulled out completely. The bottom of the inner template is placed on the surface of the baffle 406. First, the two rotating columns 408 are pulled upward, causing the limiting rack ring 407 to disengage from the limiting rack ring 410 by compressing the spring 409. Then, rotating the rotating column 408 causes the lead screw 404 to rotate as well, causing the baffle 406 to move upward through the limiting block 405 until the surface of the baffle 406 contacts the bottom of the inner template. Then, the rotating column 408 is released, allowing the limiting rack ring to move upward under the action of the spring 409. The first 407 re-engages with the second 410 limiting rack ring, thereby fixing the baffle 406. During the process of the winch 3 pulling out the inner template, the pulled-out end of the inner template abuts against the left end of the baffle 406, so that the screw 401 connected to the inner wall of the sliding block 402 slides towards the winch 3 during the pulling out process. This prevents the end of the inner template from tilting up due to being pulled out too long, thus preventing the end of the inner template from getting stuck inside the box girder template, thereby improving the work efficiency of the operators.

[0038] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A construction device for box girder formwork in municipal road and bridge construction, characterized in that, Includes a support plate (1), a lifting assembly (2) is fixedly connected to the top of the support plate (1), a winch (3) is provided on the top of the lifting assembly (2), a sliding assembly (4) is provided on the top of the support plate (1), and a support foot (5) is fixedly connected to the bottom of the support plate (1). The lifting assembly (2) includes a U-shaped support frame (201). A hydraulic rod (202) is fixedly connected to the top of the inner wall of the U-shaped support frame (201). A connecting plate (203) is fixedly connected to the output end of the hydraulic rod (202). Fixed rods (204) are fixedly connected to both sides of the connecting plate (203). A sliding column (205) is fixedly connected to the bottom of the fixed rod (204). A sliding block (206) is fixedly connected to the bottom of the sliding column (205). A limit frame (207) is slidably connected to the surface of the sliding block (206). A sliding seat (208) is fixedly connected to the right side of the sliding block (206). A mounting seat (209) is slidably connected to the surface of the sliding seat (208).

2. The municipal road and bridge construction box girder formwork construction device as described in claim 1, characterized in that: The top of the support plate (1) is fixedly connected to a U-shaped support frame (201), and there are two sliding columns (205), which are symmetrically distributed around the fixed rod (204).

3. The municipal road and bridge construction box girder formwork construction device as described in claim 1, characterized in that: The surface of the sliding column (205) is slidably connected to the top of the inner wall of the limiting frame (207), and the bottom of the limiting frame (207) is fixedly connected to the top of the support plate (1).

4. The municipal road and bridge construction box girder formwork construction device as described in claim 1, characterized in that: The top of the sliding seat (208) is fixedly connected to the bottom of the winch (3), and the bottom of the mounting seat (209) is fixedly connected to the top of the support plate (1).

5. The municipal road and bridge construction box girder formwork construction device as described in claim 1, characterized in that: The sliding assembly (4) includes a lead screw (401), a sliding block (402) is threadedly connected to the surface of the lead screw (401), a limit frame (403) is fixedly connected to the top of the sliding block (402), a lead screw (404) is threadedly connected to the inner wall of the limit frame (403), a limit block (405) is threadedly connected to the surface of the lead screw (404), a baffle (406) is fixedly connected to one end of the limit block (405), a limit rack ring (407) is fixedly connected to the top of the lead screw (404), a rotating column (408) is fixedly connected to the top of the limit rack ring (407), a spring (409) is fixedly connected to the top of the limit rack ring (407), and a limit rack ring (410) is provided in the limit groove opened at the top of the inner wall of the limit frame (403).

6. The municipal road and bridge construction box girder formwork construction device as described in claim 5, characterized in that: The number of sliding components (4) is set to two, and the two sliding components (4) are symmetrically distributed with the support plate (1) as the center. The two sides of the lead screw (401) are rotatably connected to the sliding groove opened on the inner wall of the support plate (1).

7. The municipal road and bridge construction box girder formwork construction device as described in claim 5, characterized in that: The surface of the sliding block 2 (402) is slidably connected to the sliding groove opened on the inner wall of the support plate (1), the bottom of the limiting rack ring 1 (407) is meshed with the top of the limiting rack ring 2 (410), and the surface of the limiting rack ring 1 (407) is slidably connected to the limiting groove opened on the top of the limiting frame 2 (403).

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