Narrow-gap concrete pouring funnel

By designing a detachable and connectable narrow-slot concrete pouring funnel, the problems of concrete overflow and voids in the pouring of narrow-slot structures are solved, enabling flexible adjustment and efficient construction, and making it suitable for precise pouring of narrow-slot structures.

CN224300448UActive Publication Date: 2026-05-29SINOHYDRO ENG BUREAU 4
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SINOHYDRO ENG BUREAU 4
Filing Date
2025-07-15
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing concrete pouring equipment cannot accurately pour concrete into narrow-slot structures according to requirements, resulting in concrete overflow, voids, poor versatility, and complicated and inconvenient installation, especially when working at heights or in confined spaces where efficiency is low.

Method used

A narrow-slot concrete pouring funnel was designed, including a funnel, a pouring head, a supporting frame, and a bracket, all connected by bolts. The funnel is connected to an impregnation device, and the bracket, the supporting frame, and the impregnation device are also connected. The bottom of the funnel can be detachably connected to pouring heads of different widths. The bottom of the funnel has a long, narrow opening, and the inside of the pouring head also has a long, narrow opening, all connected by bolts. The funnel and the pouring head are fixed together by bolts. The top of the funnel has a lifting lug design, and the supporting frame and bracket are detachably connected. The bracket adopts a portal frame design, allowing for flexible adjustment of the funnel and the pouring head.

Benefits of technology

It enables quick replacement of pouring heads according to the width of narrow gaps, precise pouring, reduced concrete overflow and voids, improved construction efficiency, and reduced costs. It is suitable for high-altitude or confined space operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of narrow slit concrete pouring funnels, including hopper and pouring head, the hopper bottom detachably connects pouring head, the hopper bottom is the opening of strip shape, the pouring head is correspondingly arranged with the opening of strip shape of hopper bottom, the pouring head inside is provided with the pouring slit of strip shape, the opening edge of hopper bottom is provided with the connecting disc A extending outward, the connecting disc B is provided on the pouring head corresponding to connecting disc A, the edge of connecting disc A and connecting disc B is uniformly provided with bolt connection hole, the hopper and pouring head are connected by bolt.The utility model hopper and pouring head are detachably connected, and different sizes of rectangular or V-shaped groove pouring head can be quickly replaced according to the actual width of narrow slit, without separately customizing equipment for narrow slit of different width, greatly improve the versatility of equipment, reduce construction cost.
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Description

Technical Field

[0001] This utility model relates to the technical field of pouring funnels, and more particularly to a narrow-slit concrete pouring funnel. Background Technology

[0002] In building construction, it is often necessary to pour concrete into narrow gaps, such as vertical gaps in walls, splicing joints of components, and joints between precast slabs. Currently, traditional concrete pouring funnels are mostly circular or large-diameter structures with fixed and large bottom openings, making them unsuitable for the precise pouring requirements of narrow gaps. During pouring, concrete overflow is common, resulting in significant waste, and voids and incomplete filling can easily form inside the narrow gap, affecting structural strength. Furthermore, the pouring outlet size cannot be flexibly adjusted according to the width of the narrow gap, requiring custom-made funnels for different widths, leading to poor versatility and increased construction costs. The installation and fixing methods of traditional funnels are complex, mostly fixed structures, making movement and adjustment inconvenient, especially when working at heights or in confined spaces, resulting in extremely low construction efficiency. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a narrow-slot concrete pouring funnel.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A narrow-slot concrete pouring funnel includes a funnel, a pouring head, a supporting frame, and a bracket. The pouring head is detachably connected to the bottom of the funnel, and different width pouring heads can be replaced according to the width of the pouring gap. The bottom of the funnel has an elongated opening, and the pouring head is correspondingly arranged to the elongated opening at the bottom of the funnel. An elongated pouring gap is provided inside the pouring head. A connecting plate A extending outward is provided at the edge of the opening at the bottom of the funnel, and a connecting plate B is provided on the pouring head corresponding to the connecting plate A. Bolt connection holes are provided at the corresponding edges of the connecting plates A and B for fixing the funnel and the narrow-slot pouring head with bolts. The funnel and the pouring head are connected by bolts.

[0006] The pouring head can be a rectangular pouring head or a V-shaped trough pouring head. The appropriate pouring head should be selected according to the width of the pouring gap required.

[0007] The funnel is a V-shaped groove funnel.

[0008] The funnel is equipped with lifting lugs on both sides of its top, which can be used to lift and pour the concrete.

[0009] The funnel is detachably mounted on the bracket via a support frame. The support frame is a rectangular frame. The funnel is snapped into the support frame at its middle position. Frame connecting plates are provided on both sides of the support frame. The frame connecting plates are correspondingly provided with the bracket connecting plates at the top of the bracket. Both the frame connecting plates and the bracket connecting plates are provided with corresponding bolt holes for fixing the support frame and the bracket with bolts. The support frame and the bracket are connected by bolts.

[0010] The support is a portal frame set on the front and rear sides of the funnel, perpendicular to the elongated opening at the bottom of the funnel. The two sides of the portal frame are fixedly connected by reinforcing diagonal braces.

[0011] The beneficial effects of this utility model are as follows:

[0012] The funnel and pouring head are detachably connected, allowing for quick replacement of rectangular or V-shaped trough pouring heads of different sizes according to the actual width of the narrow joint. This eliminates the need for custom-made equipment for narrow joints of varying widths, significantly improving equipment versatility and reducing construction costs. The funnel's elongated opening at the bottom, combined with the elongated pouring joint inside the pouring head, enables precise alignment with the narrow joint, effectively preventing concrete overflow and reducing material waste. Simultaneously, the inclined inner wall of the V-shaped trough funnel guides the concrete to converge quickly, ensuring a dense filling of the narrow joint, reducing voids, and improving pouring quality. The funnel is detachably connected to the support frame and bracket, which uses a portal frame structure with reinforced diagonal braces, ensuring overall stability and facilitating flexible equipment adjustment according to the construction location. The top lifting lugs allow for overall movement with hoisting equipment, making it particularly suitable for high-altitude or confined space operations, significantly improving construction efficiency. Attached Figure Description

[0013] Figure 1 This is an overall structural diagram of the present invention;

[0014] Figure 2 This is a structural diagram of the funnel of this utility model;

[0015] Figure 3 This is a structural diagram of the funnel support of this utility model;

[0016] Figure 4 This is a structural diagram of the bottom of the funnel of this utility model;

[0017] Figure 5 This is a side view of the rectangular casting head of this utility model;

[0018] Figure 6 This is a side view of the conical casting head of this utility model;

[0019] In the diagram: 1. Funnel; 11. Connecting plate A; 12. Lifting lug; 13. Opening; 2. Pouring head; 21. Connecting plate B; 22. Pouring joint; 3. Support frame; 31. Frame connecting plate; 4. Bracket; 41. Bracket connecting plate; 42. Reinforcing diagonal brace. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0021] Example 1

[0022] like Figure 1-6 As shown, this utility model provides a narrow-slot concrete pouring funnel, the structure of which includes a funnel 1, a pouring head 2, a support frame 3 and a bracket 4. The bottom of the funnel 1 is detachably connected to the pouring head 2, and the pouring head 2 of different widths can be replaced according to the width of the pouring joint 22. The bottom of the funnel 1 is a long strip-shaped opening 13, and the pouring head 2 is correspondingly set to the long strip-shaped opening 13 at the bottom of the funnel 1. The pouring head 2 is provided with a long strip-shaped pouring joint 22 inside. A connecting plate A11 extending outward is provided at the edge of the opening 13 at the bottom of the funnel 1. A connecting plate B21 is provided on the pouring head 2 corresponding to the connecting plate A11. Bolt connection holes are provided at the corresponding edges of the connecting plate A11 and the connecting plate B21 for fixing the funnel 1 and the narrow-slot pouring head 2 with bolts. The funnel 1 and the pouring head 2 are connected by bolts.

[0023] Pouring head 2 is a rectangular pouring head 2;

[0024] Funnel 1 is a V-shaped groove funnel 1;

[0025] The top of the funnel 1 is provided with two lifting lugs 12;

[0026] The funnel 1 is detachably mounted on the bracket 4 via the support frame 3. The support frame 3 is a rectangular frame. The middle position of the funnel 1 is snapped into the support frame 3. Frame connecting plates 31 are provided on both sides of the support frame 3. The frame connecting plates 31 are correspondingly provided with the bracket connecting plate 41 at the top of the bracket 4. Both the frame connecting plate 31 and the bracket connecting plate 41 are provided with corresponding bolt holes for fixing the support frame 3 and the bracket 4 with bolts. The support frame 3 and the bracket 4 are connected by bolts.

[0027] The support 4 is a gate-shaped support 4 installed on the front and rear sides of the funnel 1, perpendicular to the long strip-shaped opening 13 at the bottom of the funnel 1. The two sides of the gate-shaped support 4 are fixedly connected by reinforcing diagonal braces 42.

[0028] Specifically, before construction, select the appropriate pouring head 2 according to the width of the narrow joint, and fix it to the bottom of the funnel 1 by connecting plate A11 and bolt B21;

[0029] Use the lifting lug 12 to hoist the device to the construction position, so that the pouring joint 22 of the pouring head 2 is aligned with the narrow joint;

[0030] Concrete is poured into funnel 1, and the concrete slides down the V-shaped groove to the bottom opening 13. It is then precisely injected into the narrow gap through the pouring joint 22 of pouring head 2, achieving filling without overflow.

[0031] If you need to change the narrow slit or adjust the position, you can remove the bolts to replace the pouring head 2 or the movable bracket 4, which is easy to operate.

Claims

1. A narrow-slot concrete pouring funnel, characterized in that: The device includes a funnel and a pouring head. The bottom of the funnel is detachably connected to the pouring head, which has an elongated opening. The pouring head is correspondingly positioned to the elongated opening at the bottom of the funnel. An elongated pouring seam is provided inside the pouring head. A connecting plate A extending outward is provided at the edge of the opening at the bottom of the funnel. A connecting plate B is provided on the pouring head corresponding to the connecting plate A. Bolt connection holes are provided at the corresponding edges of the connecting plates A and B. The funnel and the pouring head are connected by bolts.

2. The narrow-slot concrete pouring funnel according to claim 1, characterized in that: The pouring head is either a rectangular pouring head or a V-shaped trough pouring head.

3. The narrow-slot concrete pouring funnel according to claim 1, characterized in that: The funnel is a V-shaped groove funnel.

4. A narrow-slot concrete pouring funnel according to claim 1, characterized in that: The funnel is equipped with lifting lugs on both sides of its top.

5. A narrow-slot concrete pouring funnel according to claim 1, characterized in that: The funnel is detachably mounted on the bracket via a support frame. The support frame is a rectangular frame. The funnel is snapped into the support frame at its middle position. Frame connecting plates are provided on both sides of the support frame. The frame connecting plates are corresponding to the bracket connecting plates on the top of the bracket. Both the frame connecting plates and the bracket connecting plates are provided with corresponding bolt holes. The support frame and the bracket are connected by bolts.

6. A narrow-slot concrete pouring funnel according to claim 5, characterized in that: The support is a portal frame set on the front and rear sides of the funnel, perpendicular to the elongated opening at the bottom of the funnel. The two sides of the portal frame are fixedly connected by reinforcing diagonal braces.