Demoulding device for concrete lining segment

By designing support columns and side retaining ring assemblies, the problem of cracking caused by uneven force during the demolding of concrete lining segments was solved, achieving uniform demolding and efficient molding.

CN223573415UActive Publication Date: 2025-11-21CHINA CONSTR TECH (FUZHOU) CO LTD
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Patent Information

Application Number
CN202422715613.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-07
Publication Date
2025-11-21
Estimated Expiration
2034-11-07

AI Technical Summary

Technical Problem

In existing technologies, concrete lining segments are prone to cracking during demolding due to uneven force, which affects molding efficiency.

Method used

The design incorporates components such as support columns, sliders, lever arms, base plates, and side retaining rings. A power unit enables the sliders and base plates to move in opposite directions, while the support columns support the tube segments. The base plate drives the side retaining rings to move downwards, achieving uniform demolding and preventing breakage.

Benefits of technology

This ensures uniform stress distribution during the demolding process of the tube segments, preventing breakage and improving molding efficiency and ease of use of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a concrete lining segment demoulding device which comprises a base, a plurality of supporting columns are fixedly connected to the top of the base, a guide frame is fixedly connected to the top of the base, two sliding blocks are connected to the outer side of the guide frame in a sliding mode, and a power assembly enabling the two sliding blocks to move is arranged in the guide frame. Force arms are rotationally connected to the two sides of the two sliding blocks correspondingly, a bottom plate is rotationally connected to the top ends of the force arms, a plurality of receding holes penetrating through the bottom plate are formed in the upper surface of the bottom plate, the supporting columns penetrate through the receding holes, the tops of the supporting columns are flush with the top of the bottom plate, and a side baffle ring is arranged on the outer side of the bottom plate. Protrusions are integrally formed on the two sides of the base. According to the demolding device, the duct piece can be prevented from being broken in the demolding process, the forming efficiency of the duct piece is improved, the demolding device can be conveniently recovered and conveniently used next time, and the using convenience of the demolding device is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to concrete lining segment production technical field especially relates to a kind of for concrete lining segment stripping device. BACKGROUND

[0002] Concrete lining segment is a kind of prefabricated concrete component for tunnel lining, usually used in the construction of urban subway, water tunnel, highway tunnel, railway tunnel and other infrastructure, it is made of steel bar, concrete (may include steel fiber) as main raw material, according to the direction of tunnel is divided into straight section segment, curve section segment and general segment.

[0003] After searching, the prefabricated concrete lining segment stripping device of the announcement No.CN213648026U is disclosed, after segment forming, it can effectively eject, conveniently take out forming segment, while not easy to cause damage to segment, however, it is using top block to eject segment, the force suffered by segment is also at top block, direct ejection is easy to make the force suffered by segment uneven and lead to segment rupture, to affect the forming efficiency of segment. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in prior art, and provides a kind of for concrete lining segment stripping device.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] A kind of for concrete lining segment stripping device, including base, the top of the base is fixedly connected with multiple support columns, the top of the base is fixedly connected with guide frame, the outer side of guide frame is slidably connected with two sliding blocks, the power assembly that two sliding blocks are moved is equipped in guide frame, two the two sides of sliding block are rotatably connected with force arm, the top of force arm is rotatably connected with bottom plate, the upper surface of bottom plate is equipped with multiple through bottom plate's position avoidance hole, the support column passes through position avoidance hole, and the top of support column is flush with the top of bottom plate, the outer side of bottom plate is equipped with side retaining ring, the two sides of base are integrally formed with protrusion, the two sides of base are equipped with the elastic component that the side retaining ring is supported, the bottom of bottom plate is equipped with the connecting assembly that side retaining ring is driven to move downward, the two sides of base are equipped with the guide component that side retaining ring is moved vertically.

[0007] As the further scheme of the utility model, the power assembly includes bidirectional screw rod, the bidirectional screw rod is rotatably connected in guide frame, the bidirectional screw rod passes through two sliding blocks and is threadedly connected with sliding block, the side of guide frame is fixedly connected with motor, and the one end of motor output shaft passes through guide frame and is fixed with bidirectional screw rod.

[0008] As a further scheme of the utility model, the elastic component is a plurality of springs, the plurality of springs are fixedly connected on both sides of the base, and the springs are fixed with the side retaining ring.

[0009] As a further scheme of the utility model, the connecting assembly comprises a plurality of connecting frames, the plurality of connecting frames are fixedly connected on the bottom of the bottom plate, and the plurality of connecting frames are uniformly and symmetrically distributed on both sides of the bottom plate, both side outer walls of the side retaining ring are provided with two sliding grooves, a moving block is slidably connected in each of the plurality of sliding grooves, and the moving block is fixed with the connecting frame.

[0010] As a further scheme of the utility model, a cover plate is placed on the top of the side retaining ring, and the top of the cover plate is fixedly connected with a filling pipe.

[0011] As a further scheme of the utility model, a plurality of insertion holes penetrating through the cover plate are formed in the top of the cover plate, and the guide rod penetrates through the insertion hole.

[0012] As a further scheme of the utility model, the guide component is a plurality of guide rods, the plurality of guide rods are fixedly connected on both sides of the base, both sides of the side retaining ring are provided with sliding holes penetrating through the side retaining ring, and the guide rod penetrates through the sliding hole to move the side retaining ring along the guide rod.

[0013] The utility model discloses the beneficial effects are:

[0014] 1. The utility model discloses a support column passes through the bottom plate, and two sliding blocks move in opposite directions to make the sliding block pull the bottom plate down through the force arm, make the support column support the pipe piece formed and pass through the bottom plate, and then the bottom plate drives the side retaining ring to move down through the connecting assembly, so that the side retaining ring is separated from the pipe piece formed, and the pipe piece formed is demoulded, so that the pipe piece can be prevented from breaking in the demoulding process, and the pipe piece forming efficiency is improved.

[0015] 2. The utility model discloses an elastic component, and the side retaining ring is extruded in the process of moving down, and the side retaining ring can reset through the elastic force of the elastic component after demoulding, so that the demoulding device is recovered, and the next use is facilitated, and the convenience of the demoulding device is improved. ACCURACY OF DRAWINGS

[0016] Fig. 1 A three-dimensional structure schematic view of a concrete lining pipe piece demoulding device is provided for the utility model;

[0017] Fig. 2 A partial sectional view structure schematic view of a concrete lining pipe piece demoulding device is provided for the utility model;

[0018] Fig. 3The utility model provides a kind of local amplification structure schematic diagram for concrete lining pipe piece stripping device.

[0019] In the drawing: 1, base; 2, support column; 3, side retaining ring; 4, cover plate; 5, filling tube; 6, jack; 7, connecting frame; 8, spring; 9, guide rod; 10, bottom plate; 11, avoid hole; 12, sliding hole; 13, guide frame; 14, bidirectional screw rod; 15, sliding block; 16, force arm; 17, sliding slot; 18, moving block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. The described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0021] Referring to Figs. 1-3 A kind of concrete lining pipe piece stripping device for concrete lining pipe piece stripping device, including base 1, the top of base 1 is welded with multiple support columns 2, the top of base 1 is welded with guide frame 13, the outer side of guide frame 13 is slidably connected with two sliding blocks 15, power assembly that is equipped in guide frame 13 makes two sliding blocks 15 move, the two sides of two sliding blocks 15 are rotatably connected with force arm 16, the top of force arm 16 is rotatably connected with bottom plate 10, the upper surface of bottom plate 10 is provided with multiple avoid holes 11 that pass through bottom plate 10, support column 2 passes through avoid hole 11, and the top of support column 2 is flush with the top of bottom plate 10, two sliding blocks 15 are moved in opposite directions horizontally by power assembly along guide frame 13, two sliding blocks 15 will pull bottom plate 10 down along support column 2 in the process of moving by force arm 16, simultaneously, rotation occurs between force arm 16 and sliding block 15 and bottom plate 10, and bottom plate 10 will make support column 2 pass out of bottom plate 10 in the process of moving down, at this moment, support column 2 will support the pipe piece formed, so that bottom plate 10 is separated from pipe piece;

[0022] The outer side of bottom plate 10 is equipped with side retaining ring 3, the two sides of base 1 are integrally formed with protrusion, the two sides of base 1 are equipped with elastic component for supporting side retaining ring 3, the bottom of bottom plate 10 is equipped with connecting assembly for driving side retaining ring 3 to move down, the two sides of base 1 are equipped with guide component for making side retaining ring 3 move vertically, when bottom plate 10 moves down to certain position, side retaining ring 3 will be driven to move down by connecting assembly, so that side retaining ring 3 is separated from pipe piece, and since support column 2 supports pipe piece, force is evenly distributed when pipe piece is stripped, pipe piece is prevented from breaking in the process of stripping, and the forming efficiency of pipe piece is improved.

[0023] The utility model discloses, power assembly includes two -way screw rod 14, two -way screw rod 14 rotatory connection in guide frame 13, two -way screw rod 14 passes two sliding blocks 15 and is connected with sliding block 15 the screw thread, and the motor is fixed with the one side of guide frame 13 through bolt, and the one end of motor output shaft passes guide frame 13 and is fixed with two -way screw rod 14, when using, start motor, and motor will drive two -way screw rod 14 and rotate, and two -way screw rod 14 will make two sliding blocks 15 along the horizontal opposite direction movement of guide frame 13 through the screw thread engagement between two sliding blocks 15, and the elastic component is multiple spring 8, and multiple spring 8 all are welded in the both sides of base 1, and spring 8 is fixed with side retaining ring 3, and connecting assembly includes multiple connecting frame 7, and multiple connecting frame 7 all are welded in the bottom of bottom plate 10, and multiple connecting frame 7 evenly symmetrical distribution is in the both sides of bottom plate 10, and the both sides outer wall of side retaining ring 3 all are set up two sliding grooves 17, and multiple sliding grooves 17 all slidingly connect have moving block 18, and moving block 18 is fixed with connecting frame 7, and bottom plate 10 will drive connecting frame 7 and move down in the process of moving down, and connecting frame 7 will drive moving block 18 and move in sliding groove 17, when moving block 18 moves to the bottom of sliding groove 17, at this moment, bottom plate 10 continues to move down, to drive side retaining ring 3 and move down through moving block 18, and side retaining ring 3 will extrude spring 8 simultaneously, when stripping is completed, side retaining ring 3 will reset through the force of spring 8, to facilitate next use;

[0024] The top of the side retaining ring 3 is provided with a cover plate 4, the top of the cover plate 4 is welded with a filling pipe 5, concrete can be added into the side retaining ring 3 and the bottom plate 10 through the filling pipe 5, a plurality of insertion holes 6 penetrating the cover plate 4 are formed in the top of the cover plate 4, and the guide rods 9 penetrate the insertion holes 6, the guide parts are a plurality of guide rods 9, the plurality of guide rods 9 are welded on the both sides of the base 1, a sliding hole 12 penetrating the side retaining ring 3 is formed in the both sides of the side retaining ring 3, and the guide rods 9 penetrate the sliding hole 12 to move the side retaining ring 3 along the guide rods 9, when the cover plate 4 is placed, the guide rods 9 penetrate the insertion holes 6 on the cover plate 4, so that the cover plate 4 can be positioned and placed, and the side retaining ring 3 moves vertically downward along the guide rods 9 in the process of moving downward.

[0025] Working principle: when the demoulding is needed, the motor is started, the motor drives the bidirectional screw rod 14 to rotate, the bidirectional screw rod 14 will make the two sliding blocks 15 move in the opposite direction along the guide frame 13 through the thread engagement between the two sliding blocks 15, the two sliding blocks 15 will pull the bottom plate 10 to move downward along the support column 2 through the force arm 16 in the moving process, meanwhile the force arm 16 will rotate with the sliding block 15 and the bottom plate 10, the bottom plate 10 will make the support column 2 pass through the bottom plate 10 in the moving process, at this time the support column 2 will support the formed pipe piece, so that the bottom plate 10 is separated from the pipe piece, the bottom plate 10 will drive the connecting frame 7 to move downward in the moving process, the connecting frame 7 will drive the moving block 18 to move in the sliding groove 17, when the moving block 18 moves to the bottom of the sliding groove 17, at this time the bottom plate 10 continues to move downward, so that the side stop ring 3 is driven to move downward along the guide rod 9 through the moving block 18, meanwhile the side stop ring 3 will extrude the spring 8, so that the side stop ring 3 is separated from the pipe piece, because the support column 2 supports the pipe piece, therefore the pipe piece can be uniformly stressed when demoulding, the pipe piece can be prevented from being broken in the demoulding process, the pipe piece forming efficiency is improved.

[0026] Finally, it should be noted that: for those skilled in the art, the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A demolding device for concrete lining segments, comprising a base (1), characterized in that, The top of the base (1) is fixedly connected to multiple support columns (2), and the top of the base (1) is fixedly connected to a guide frame (13). Two sliders (15) are slidably connected to the outer side of the guide frame (13). The guide frame (13) is provided with a power component that moves the two sliders (15). Both sides of the two sliders (15) are rotatably connected to a lever arm (16). The top of the lever arm (16) is rotatably connected to a base plate (10). The upper surface of the base plate (10) is provided with multiple clearance holes that penetrate the base plate (10). 11) The support column (2) passes through the clearance hole (11), and the top of the support column (2) is flush with the top of the base plate (10). The outer side of the base plate (10) is provided with a side retaining ring (3). Both sides of the base (1) are integrally formed with protrusions. Both sides of the base (1) are provided with elastic components to support the side retaining ring (3). The bottom of the base plate (10) is provided with a connecting component to drive the side retaining ring (3) to move downward. Both sides of the base (1) are provided with guide components to make the side retaining ring (3) move vertically.

2. The demolding device for concrete lining segments according to claim 1, characterized in that, The power assembly includes a bidirectional lead screw (14), which is rotatably connected to a guide frame (13). The bidirectional lead screw (14) passes through two sliders (15) and is threadedly connected to the sliders (15). A motor is fixedly connected to one side of the guide frame (13), and one end of the motor output shaft passes through the guide frame (13) and is fixed to the bidirectional lead screw (14).

3. A demolding device for concrete lining segments according to claim 1, characterized in that, The elastic component consists of multiple springs (8), which are fixedly connected to both sides of the base (1) and are fixed to the side retaining rings (3).

4. A demolding device for concrete lining segments according to claim 1, characterized in that, The connecting assembly includes multiple connecting frames (7), which are fixedly connected to the bottom of the base plate (10) and are evenly and symmetrically distributed on both sides of the base plate (10). Two sliding grooves (17) are opened on both outer walls of the side retaining ring (3). A moving block (18) is slidably connected in each of the multiple sliding grooves (17), and the moving block (18) is fixed to the connecting frame (7).

5. A demolding device for concrete lining segments according to claim 1, characterized in that, A cover plate (4) is placed on the top of the side retaining ring (3), and an injection pipe (5) is fixedly connected to the top of the cover plate (4).

6. A demolding device for concrete lining segments according to claim 5, characterized in that, The top of the cover plate (4) has multiple through holes (6) that penetrate the cover plate (4), and the guide rod (9) passes through the through holes (6).

7. A demolding device for concrete lining segments according to claim 6, characterized in that, The guiding component consists of multiple guide rods (9), which are fixedly connected to both sides of the base (1). The side retaining ring (3) has sliding holes (12) through it on both sides, and the guide rods (9) pass through the sliding holes (12) to allow the side retaining ring (3) to move along the guide rods (9).

Citation Information

Patent Citations

  • Precast concrete lining segment demolding device

    CN213648026U