A precast block rotary stripping device

By designing a precast block rotation demolding device, the rotation demolding of the trial mold is achieved by using a frame-type vehicle and a flipping rod, which solves the problems of cumbersome operation and safety risks in the existing technology and realizes a convenient and safe demolding operation.

CN224544886UActive Publication Date: 2026-07-24XINJIANG ROAD & BRIDGE CONSTR GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XINJIANG ROAD & BRIDGE CONSTR GRP CO LTD
Filing Date
2025-08-11
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing methods for demolding precast blocks are cumbersome, labor-intensive, and pose safety risks, especially during the handling and flipping of large precast blocks.

Method used

A precast block rotation demolding device was designed, including a frame-type vehicle, a flipping rod, a rotating fulcrum rod, and an arc-shaped rotating frame. The flipping rod rotates the test mold 180 degrees, and combined with casters and shock-absorbing springs, it achieves convenient and safe demolding operation.

Benefits of technology

This method enables convenient demolding of precast blocks, reduces labor costs, lowers operating noise, avoids the risk of worker injury, and protects the surface integrity of the precast blocks.

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Abstract

The utility model discloses a prefabricated block rotary demoulding device, including frame type frame, the front both sides of frame type frame are rotatively connected with the turnover rod, the rear both sides of frame type frame are fixed with the rotary fulcrum rod that is limited to the turnover rod, the inside of the lower both sides of frame type frame forms the longitudinal sliding slot that cooperates with the test mould side edge of test mould, and the front end of frame type frame is fixed with the arc rotary frame, the utility model discloses a lever mechanism is formed to turnover rod and rotary fulcrum rod, and the arc rotary frame cooperates and works together, and test mould is easy to overturn 180 degrees, and the manpower is saved greatly, and test mould is turned away from the direction of person when overturning, can avoid the worker to be hurt, and through setting up one way wheel and universal wheel at the bottom simultaneously, make it have good control nature and low noise advantage etc.
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Description

Technical Field

[0001] This utility model relates to the field of machinery, and in particular to a precast block rotary demolding device. Background Technology

[0002] Precast blocks are typically produced by placing cement or other solidified materials into molds, allowing them to harden, and then demolding them. Existing demolding methods include manual and mechanical methods. Manual demolding usually involves manually inverting the mold and tapping it before demolding. Mechanical demolding, such as the automatic demolding device for hydraulic precast blocks based on vibration disclosed in utility model patent CN219381347U, requires placing the mold onto a mechanical structure for vibration demolding.

[0003] Because precast blocks are typically large and heavy, the dimensions of precast block covers for drainage ditches or cable trenches are generally (300mm~800mm long × 300mm~800mm wide × 150mm~400mm high). Therefore, transporting them to mechanical structures usually requires the use of heavy machinery such as forklifts for back-and-forth transport, and they must be handled gently when placed on demolding equipment. This process is cumbersome and time-consuming. Manually flipping and testing the mold is not only labor-intensive and inefficient, but also poses a risk of injury to workers due to the close proximity during the flipping process. Therefore, a demolding device that is easy for workers to use on-site is needed. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model proposes a precast block rotation demolding device.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A precast block rotary demolding device includes a frame frame, with flipping rods rotatably connected to the front two sides of the frame frame; rotating fulcrum rods for limiting the flipping rods are fixed to the rear two sides of the frame frame; longitudinal sliding grooves that mate with the side edges of the trial mold are formed on the inner sides of the lower two sides of the frame frame; and an arc-shaped rotating frame is fixed to the front end of the frame frame.

[0007] As a further improvement, the flipping rod is U-shaped.

[0008] As a further improvement, one-way wheels are installed on both sides of the bottom front end of the frame frame, and omnidirectional wheels are installed on both sides of the bottom rear end.

[0009] In a further improvement, a plastic film is fixed to the outer surface of the arc-shaped rotating frame, and a columnar support rod is fixed inside.

[0010] As a further improvement, shock-absorbing springs are fixed to both sides of the top of the rear of the frame-type vehicle.

[0011] As a further improvement, a protective glove is fixed to the flipping rod.

[0012] In a further improvement, the frame-type vehicle frame includes vertical support rods at the four corners, which are fixed to each other by longitudinal support rods and transverse support rods respectively; the bottom ends of the longitudinal support rods are fixedly connected to horizontal grooved longitudinal support rods by internal support vertical rods; the longitudinal groove is located on the horizontal grooved longitudinal support rod.

[0013] In a further improvement, a support diagonal bar is fixed between the horizontal grooved longitudinal support rod and the vertical support rod at the front of the frame frame.

[0014] In a further improvement, the upper and lower surfaces of the horizontal grooved longitudinal support rod are respectively fixed with support diagonal rods between them and the vertical support rods at the front of the frame frame.

[0015] In a further improvement, the rotating pivot rod is fixed to both ends of the transverse support rod at the rear of the frame frame.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. This device allows the test mold and precast blocks to be easily rotated 180 degrees by a flipping rod, thus enabling the precast blocks in the test mold to be demolded smoothly; it saves manpower, and when flipping, the worker is in front of the device, while the precast blocks are flipped in the rear direction, thus avoiding worker injury.

[0018] 2. The bottom is equipped with 2 omnidirectional wheels and 2 one-way wheels, which makes it very flexible to move around on site, reducing physical effort and noise.

[0019] 3. A shock-absorbing spring is installed at the top to prevent the precast block from falling out suddenly and damaging the surface of the precast block.

[0020] 4. The connection between the handle and the base frame is not located in the middle, which saves the worker's energy when rotating the machine.

[0021] 5. An arc-shaped rotating frame is set at the bottom for easy rotation. A plastic film is also set on the outside of the arc-shaped rotating frame to reduce noise. Attached Figure Description

[0022] The present invention will be further described with reference to the accompanying drawings, but the content of the drawings does not constitute any limitation on the present invention.

[0023] Figure 1 This is a perspective view of the demolding device of this utility model;

[0024] Figure 2 A 3D view of the demolding device rotated 90 degrees.

[0025] Figure 3 Diagram showing the demolding device rotated 180 degrees;

[0026] Figure 4 A test mold drawing showing the completed precast blocks;

[0027] Figure 5 Diagram of the mold insertion and demolding device;

[0028] Figure 6 A diagram showing the mold being inserted into the demolding device and rotated 90 degrees.

[0029] Figure 7 A diagram showing the mold being rotated 180 degrees to fit into the demolding device.

[0030] Figure 8 This is a diagram of the precast blocks after demolding.

[0031] Figure 9 This is a schematic diagram of the prototype mold.

[0032] Among them, 1, horizontal support rod; 2, longitudinal support rod; 3, horizontal grooved longitudinal support rod; 4, internal support vertical rod; 5, support diagonal rod; 6, arc-shaped rotating frame; 7, plastic film; 8, column support rod; 9, universal wheel; 10, one-way wheel; 11, shock-absorbing buffer spring; 12, flipping rod; 13, 14, protective glove; 15, rotating fulcrum rod; 16, trial mold; 161, trial mold side edge; 162, protrusion; 17, precast block; 18, longitudinal groove. Detailed Implementation

[0033] To make the purpose, technical solution and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and examples.

[0034] Example 1

[0035] like Figures 1-3 The precast block rotation demolding device shown includes a vertical support rod 1, a horizontal support rod 2, a longitudinal support rod 3, a horizontal grooved longitudinal support rod 4, an internal support vertical rod 5, a support diagonal rod 6, an arc-shaped rotating frame 7, a plastic film 8, a column-shaped support rod 9, a universal wheel 10, a one-way wheel 11, a shock-absorbing buffer spring 12, a flipping rod 13, a protective glove 14, and a rotating fulcrum rod 15.

[0036] The frame-type vehicle frame consists of vertical support rod 1, horizontal support rod 2, longitudinal support rod 3, horizontal grooved longitudinal support rod 4, and internal support vertical rod 5. An arc-shaped rotating frame 7 is fixed to the front end of the frame-type vehicle frame.

[0037] The frame frame is rotatably connected to the U-shaped flip rods 13 on both sides, and the two ends of the transverse support rod 2 at the rear of the frame frame form a rotating fulcrum rod 9 that limits the U-shaped flip rods 13.

[0038] The horizontal grooved longitudinal support rod 4 has a longitudinal sliding groove 18 formed on it. Its usage steps are as follows: Figures 5-8 As shown, firstly as Figure 5 As shown, pulling the flipping rod 13 causes the side edge 161 of the trial mold 16 to enter the longitudinal groove 18. Then, pushing the flipping rod 13 upward causes the frame frame to rotate due to the limiting position of the rotating fulcrum rod 9. The flipping rod 13 and the rotating fulcrum rod 9 form a lever structure, and the arc-shaped rotating frame 7 allows the trial mold 16 to be flipped 90° with relatively little effort. Figure 6 As shown. Then, after flipping a short distance, the test mold 16 automatically flips 90° under the action of gravity, completing a 180° flip. Then, demolding is completed by tapping the back to vibrate. Then, the frame frame is flipped back to its original position and slid off the current test mold 16, so that the demolding of the next test mold 16 can be carried out.

[0039] Among them, after the trial mold 16 is rotated 180°, the rotating rod 13 can also be swung up and down to strike the pivot rod 9 to generate vibration, thereby demolding the trial mold 16.

[0040] The frame-type vehicle is equipped with one-way wheels 11 on both sides of the front bottom and universal wheels 10 on both sides of the rear bottom, which makes it very flexible to move on site, reduces the physical energy consumed during movement and reduces noise during movement.

[0041] To prevent the precast blocks from falling out suddenly and damaging their surface, a shock-absorbing spring 12 is installed on top to cushion the impact during the flipping process.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the essence and scope of the technical solution of this utility model.

Claims

1. A precast block rotary demolding device, comprising a frame-type chassis, characterized in that, The front two sides of the frame frame are rotatably connected with flip rods (13); the rear two sides of the frame frame are fixed with rotating fulcrum rods (15) to limit the flip rods (13); the inner sides of the lower two sides of the frame frame are formed with longitudinal grooves (18) that cooperate with the side edge (161) of the test mold (16); the front end of the frame frame is fixed with an arc-shaped rotating frame (7).

2. The precast block rotary demolding device as described in claim 1, characterized in that, The flipping rod (13) is U-shaped.

3. The precast block rotary demolding device as described in claim 1, characterized in that, The frame-type vehicle is equipped with one-way wheels (11) on both sides of the front bottom and universal wheels (10) on both sides of the rear bottom.

4. The precast block rotary demolding device as described in claim 1, characterized in that, The outer surface of the arc-shaped rotating frame (7) is fixed with a plastic film (8), and the inside is fixed with a columnar support rod (9).

5. The precast block rotary demolding device as described in claim 1, characterized in that, Both sides of the top of the rear of the frame-type vehicle are fixed with shock-absorbing springs (12).

6. The precast block rotary demolding device as described in claim 1, characterized in that, A protective glove (14) is fixed on the flipping rod (13).

7. The precast block rotary demolding device as described in claim 1, characterized in that, The frame-type vehicle frame includes vertical support rods (1) at the four corners, and the vertical support rods (1) are fixed to each other by longitudinal support rods (3) and transverse support rods (2); the bottom of both ends of the longitudinal support rods (3) are fixedly connected to the horizontal grooved longitudinal support rods (4) by internal support vertical rods (5); the longitudinal groove (18) is located on the horizontal grooved longitudinal support rods (4).

8. The precast block rotary demolding device as described in claim 7, characterized in that, A support diagonal rod (6) is fixed between the horizontal grooved longitudinal support rod (4) and the vertical support rod (1) at the front of the frame frame.

9. The precast block rotary demolding device as described in claim 8, characterized in that, The upper and lower surfaces of the horizontal grooved longitudinal support rod (4) are respectively fixed with support diagonal rods (6) between the vertical support rod (1) at the front of the frame frame.

10. The precast block rotary demolding device as described in claim 7, characterized in that, The rotating pivot rod (15) is fixed to both ends of the transverse support rod (2) at the rear of the frame frame.