Device for conveniently fixing bridge drain hole and preventing concrete from flowing backwards
By using a combination device connecting the pull rod, hook and sealing disk in the bridge drain hole, the problem of the internal mold of the bridge drain hole is not firmly fixed, and the effect of preventing concrete backflow and improving the cement pouring molding is achieved.
Patent Information
- Application Number
- CN202422523768.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-18
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-10-18
AI Technical Summary
The internal mold of the reserved drain hole of the existing bridge is not firmly fixed, which affects the cement casting molding effect and is difficult to prevent concrete from pouring back.
A combination device connecting the tie rod, hook, sealing disc and fastening looser is used to fix it in the drain hole through the hook, and the upper port of the drain hole is sealed with the sealing disc, combining the fastening looser and nut to achieve convenient fixing and prevent concrete from pouring back.
It realizes convenient fixation of bridge drainage holes, prevents concrete from pouring back, and improves the forming effect of cement pouring.
Smart Images
Figure CN223304866U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of bridge construction, and particularly relates to a device for conveniently fixing a drain hole of a bridge and preventing concrete backflow. Background Art
[0002] In the construction of reserved drainage holes in bridges, most people will use a section of plastic pipe as the inner mold of the reserved drainage holes. However, this section of the plastic pipe inner mold is not easy to fix or the fixing method is relatively cumbersome. If it is not fixed firmly, it will directly affect the molding effect of the cement pouring drainage holes. Summary of the Invention
[0003] The utility model aims to provide a device for conveniently fixing a bridge drain hole and preventing concrete backflow, so as to prevent concrete backflow.
[0004] The present invention adopts the following technical solutions for the above purposes:
[0005] A device for conveniently fixing a drain hole in a bridge and preventing concrete backflow, the backflow device having a connecting rod for inserting into the drain hole; the bottom of the connecting rod is bent to form a hook for passing through the drain hole and connecting to a bottom formwork of the bridge; the top of the connecting rod has a thread for conveniently tightening a fastening nut and thereby tightening the entire device; the connecting rod is also provided with a sealing disc for sealing the upper port of the drain hole to prevent cement backflow; the connecting rod is also provided with a fastener loosener that can move up and down along the connecting rod; the fastener loosener is located between the fastening nut and the sealing disc.
[0006] The fastener loosener is arched, and the intermediate fastener loosener has a nut-shaped internal threaded cylinder, which is connected to the connecting rod through the internal thread. It can achieve a preliminary fastening effect by rotating up and down, preventing the fastening nut from being contaminated by cement and affecting its rotation flexibility; increasing the force radius of the fastening sealing disc, making the sealing disc tighter.
[0007] The utility model proposes a device for conveniently fixing a bridge drain hole and preventing concrete backflow. The device adopts the above technical solution, uses a bent hook to fix the backflow device, and uses a sealing disc to block the upper port of the drain hole to prevent concrete cement from backflowing, thereby improving the molding effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 It is a structural diagram of the present utility model.
[0009] In the figure: 1. Connecting rod, 2. Hook, 3. Sealing disc, 4. Tightening loosener, 5. Tightening nut. DETAILED DESCRIPTION
[0010] The present invention will be described in detail with reference to the accompanying drawings and specific embodiments:
[0011] like Figure 1 As shown, a device for conveniently fixing a bridge drain hole and preventing concrete backflow is provided, and the backflow device has a connecting rod 1 for inserting into the drain hole; the bottom of the connecting rod 1 is bent to form a hook 2 for passing through the drain hole to connect to the bridge bottom formwork; the top of the connecting rod 1 has a thread for conveniently tightening the fastening nut 5 and thus tightening the entire device; the connecting rod 1 is also provided with a sealing disc 3 for sealing the upper port of the drain hole to prevent cement backflow; the connecting rod 1 is also provided with a fastener loosener 4 that can move up and down along the connecting rod; the fastener loosener 4 is located between the fastening nut 5 and the sealing disc 3.
[0012] The fastener loosener 4 is arched, and the intermediate fastener loosener has a nut-shaped internal threaded cylinder, which is connected to the connecting rod through the internal thread. It can achieve a preliminary fastening effect by rotating up and down to prevent the fastening nut from being contaminated by cement and affecting its rotation flexibility; increase the force radius of the fastening sealing disc to make the sealing disc tighter.
[0013] When in use, the hook is used to hook the ring welded on the bottom template inside the drain hole to fix it, the connecting pull rod passes through the drain hole, is connected to the template through the lower hook, and the upper end of the drain hole is sealed by the sealing disc at the top, tightened and fixed.
Claims
1. A device for conveniently fixing a bridge drain hole and preventing concrete backflow, characterized by: The backflow device has a connecting rod for inserting into the drain hole; the bottom of the connecting rod is bent to form a hook for passing through the drain hole to connect to the bridge bottom formwork; the top of the connecting rod has a thread for conveniently tightening the fastening nut and thus tightening the entire device; the connecting rod is also provided with a sealing disc for sealing the upper port of the drain hole to prevent cement backflow; the connecting rod is also provided with a fastener and loosener that can move up and down along the connecting rod; the fastener and loosener is located between the fastening nut and the sealing disc.
2. A device for conveniently fixing a bridge drain hole and preventing concrete backflow according to claim 1, characterized in that: The fastener and loosener is arched and has a nut-shaped internal threaded cylinder, which is connected to the connecting rod through the internal thread.