A portable form stripping tool for small precast components

Abstract

The application relates to the technical field of highway detection, and discloses a portable form stripping tool applied to small prefabricated components. The tool mainly comprises a square support frame and a U-shaped handrail. Slotted grooves are arranged on two parallel sliding rails of the support frame and used for supporting and moving concrete molds. First support rods provided with rollers and support bosses are arranged at the two sides of the front end of the frame, and second support rods are arranged at the two sides of the rear end of the frame. The U-shaped handrail is rotationally connected with the support frame through a rotating seat, and first and second abutting pieces are further arranged on the frame to limit the rotating range of the handrail. According to the application, the U-shaped handrail is lifted and turned over through the lever principle, the mold can be driven to complete 180-degree turning over so that the mold opening faces downward, and the non-damage stripping of the component can be realized through slight vibration, thereby effectively solving the technical problems that the traditional manual stripping is high in labor intensity, low in efficiency and easy to damage the edges and corners of the component, and the application has the outstanding advantages of labor saving, high efficiency and product protection.

Description

Technical Field

[0001] This application relates to the field of highway inspection technology, specifically to a convenient demolding tool for small precast components. Background Technology

[0002] In highway engineering maintenance, small precast components are widely used, such as curbs, guardrails, drainage ditch covers, and repair patches. These components are typically precast centrally at the site using standardized molds to ensure uniform specifications and controllable quality. Currently, demolding after component prefabrication mainly relies on manual labor. Because these components require high-grade concrete to meet the strength requirements of highway use, and have a certain volume and weight (usually tens of kilograms), it is extremely difficult for construction workers to directly move the molds and internal components. Traditional demolding methods commonly involve hammering, prying with crowbars, or directly flipping the mold and dropping the component. This is not only physically demanding and inefficient, but also has significant drawbacks: First, the rough demolding method easily damages the edges and corners of the precast components, affecting their appearance and structural integrity, and is detrimental to finished product protection; second, repeated hammering and prying also accelerate mold deformation and damage, shortening their service life. Utility Model Content

[0003] In view of the above problems, this application provides a convenient demolding tool for small precast components, which can significantly reduce the demolding time of small precast components and avoid damage to the precast components during the demolding process.

[0004] According to one aspect of the embodiments of this application, a convenient demolding tool for small precast components is provided. The convenient demolding tool for small precast components includes a square support frame and a U-shaped handrail. The support frame includes two parallel slide rails. Each of the two slide rails has a groove extending to the outside of the support frame on its side closest to each other. The middle portions of the two slide rails on their opposite sides are rotatably connected to both ends of the U-shaped handrail via rotating seats. First support rods are vertically fixed to both sides of the front end of the support frame. The lower end of each first support rod has a roller, and the upper end is arc-shaped. The front end of each first support rod has an arc-shaped support boss. First and second abutment members for abutting against the U-shaped handrail are respectively provided at the front and rear ends of the support frame located on the rotating seat side. Second support rods are vertically arranged on both sides of the top rear end of the support frame.

[0005] In some embodiments, a locking member for securing the second abutment and the U-shaped handrail is provided together between the second abutment and the U-shaped handrail.

[0006] In some embodiments, the locking member includes a grip-type controller connected to a pin via a steel wire. The pin is horizontally slidable to the U-shaped handrail via an elastic element, and the second abutment member is provided with a pin hole for the pin to pass through.

[0007] In some embodiments, the elastic element includes a spring sleeved on the pin and a mounting block fixed to the U-shaped handrail. Two upright plates are symmetrically arranged at the top of the mounting block. The pin passes through the upright plates. One end of the spring away from the steel wire is fixed to the pin, and the other end abuts against the inner side of the upright plate.

[0008] In some embodiments, an auxiliary rod is provided in the middle of the U-shaped handrail, and the two ends of the auxiliary rod are respectively fixed to the inner sides of the U-shaped handrail.

[0009] In some embodiments, the grip portion of the U-shaped handrail is covered with an anti-slip sleeve.

[0010] In some embodiments, a guide flare is provided at the entrance of the chute.

[0011] The beneficial effects of this application are: 1. Labor-saving and efficient, reducing labor intensity: By setting up a support frame with rollers and U-shaped handrails, construction workers can easily transfer the poured mold to the demolding station. Utilizing the lever principle, demolding can be completed with simple lifting and flipping actions, completely changing the traditional method of relying on brute force to move and knock, greatly reducing the physical labor of workers and improving demolding efficiency.

[0012] 2. This utility model achieves natural demolding by smoothly lifting and rotating the mold 180 degrees, allowing the component to naturally demold under the influence of gravity and the slight up-and-down movement of the U-shaped handrail, causing the entire support frame and mold to vibrate. This process is smooth and uniform, effectively avoiding hard impacts and damage to the edges and corners of the precast component caused by prying or knocking, ensuring the integrity and appearance quality of the component, and facilitating the protection of the finished product.

[0013] 3. The tool presented in this application has a simple structure, low manufacturing cost, and is easy to promote on construction sites. By adjusting the dimensions of the support frame and the slide, it can be adapted to various sizes of small precast component molds, demonstrating excellent versatility.

[0014] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0015] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a schematic diagram of a device application scenario provided in an embodiment of this application; Figure 2 This is a schematic diagram of the overall structure of the device provided in the embodiments of this application; Figure 3 This is a schematic diagram of the overall structure of the device under load, provided in an embodiment of this application. Figure 4 This is a schematic diagram of the structure of the device provided in the embodiments of this application in several states when it is flipped.

[0016] The reference numerals in the detailed embodiments are as follows: A convenient demolding tool 110 for small precast components includes a support frame 110, a slide rail 111, a slide groove 112, a guide flare 112a, a rotating seat 113, a first support rod 114, a roller 114a, a first abutment 115, a second abutment 116, a pin hole 116a, a second support rod 117, a U-shaped handrail 120, an auxiliary rod 121, an anti-slip sleeve 122, a locking element 130, a grip-type controller 131, a steel wire 132, a pin rod 133, an elastic element 134, a spring 134a, a mounting block 134b, and a vertical plate 134c. Detailed Implementation

[0017] The embodiments of the technical solution of this application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of this application, and are therefore merely examples and should not be used to limit the scope of protection of this application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and the foregoing description of the accompanying drawings are intended to cover non-exclusive inclusion.

[0018] For details, please refer to Figures 1 to 4 , Figure 1 This is a schematic diagram of a device application scenario provided in an embodiment of this application. Figure 2 This is a schematic diagram of the overall structure of the device provided in an embodiment of this application. Figure 3 This is a schematic diagram of the overall structure of the device provided in the embodiment of this application under load. Figure 4This is a schematic diagram of the device provided in this application embodiment in several states during flipping. The precast component includes a mold 200 and a main body of the mold 200 for internal casting. The mold 200 is bucket-shaped with an open top, and an annular ear plate 210 is provided on the outer ring of the top of the mold 200. The convenient demolding tool 100 for small precast components includes a square support frame 110 and a U-shaped handle 120. The support frame 110 is used to support the mold 200. The support frame 110 includes two parallel slide rails 111. The two slide rails 111 are respectively provided with grooves 112 extending to the outside of the support frame 110 on the side of the two slide rails 111 that are close to each other. The ear plates 210 on both sides of the mold 200 can be inserted into the grooves 112, thereby realizing the gripping and support of the mold 200 and the precast components inside the mold 200 by this device. Two slide rails 111 are rotatably connected to the two ends of the U-shaped handrail 120 via rotating seats 113 at their middle sections on opposite sides. The rotating seats 113 can be configured in various ways; for example, they can be connected via double sleeves, with the inner sleeve fixed to the slide rail 111 and the outer sleeve fixed to the U-shaped handrail 120. Alternatively, a bearing seat can be used to achieve the rotatable connection. First support rods 114 are vertically fixed to both sides of the front end of the support frame 110. The lower end of each first support rod 114 has a roller 114a, and the upper end is arc-shaped. Both the first support rods 114 and the support frame 110 can be welded from U-shaped steel pipes, square steel, or I-beams. The first support rods 114 provide the main ground support for the equipment. During movement, the rollers 114a at the bottom of the two first support rods 114 support the ground, and the operator moves the entire equipment by holding the U-shaped handrail 120. The front end of the first support rod 114 is provided with an arc-shaped support boss. In this embodiment, the purpose of providing the arc-shaped support boss is to make the overall rotation of the device smoother. At the front and rear ends of the support frame 110 located on the side of the rotating seat 113, a first abutment 115 and a second abutment 116 are respectively provided for abutting the U-shaped handrail 120. The first abutment 115 provides a fulcrum for the U-shaped handrail 120 after the device has completed its rotation, thereby facilitating demolding after vibration. The second abutment 116 is supported below the support frame 110. At the rear top of the support frame 110, second support rods 117 are respectively provided vertically on both sides. The top of the second support rods 117 is flush with the top of the first support rod 114, allowing the device to be stably supported on the ground after rotation.

[0019] During operation, the operator holds the U-shaped handle 120 and moves backward, causing the "ear plates 210" or flanges on both sides of the precast component mold 200 to be pushed into the slide groove 112 from the front end of the support frame 110. The main body of the mold 200 is then suspended and supported by the slide groove 112. After loading, the operator pushes the U-shaped handle 120, and the entire device can be easily moved to the demolding station via the bottom rollers 114a. Using the rollers 114a as a fulcrum, the operator holds the U-shaped handle 120 and lifts it up. The entire device, including the mold 200, rotates 180° together, causing the mold 200 to be inverted and open downward. At this time, the four corners of the bottom of the support frame 110 are supported by the first support rod 114 and the second support rod 117, respectively. Holding the U-shaped handle 120 and flipping it backward around the rotating seat 113, the U-shaped handle 120 overlaps the outer periphery of the first abutment 115. Demolding can then be performed. During demolding, the U-shaped handrail 120 needs to be pressed down, using the lower end of the first support rod 114 (at this time, the support frame 110 is upside down, with the end of the first support rod 114 with the roller 114a at the upper end) as a fulcrum to lift the support frame 110 and the mold 200 as a whole a certain distance. Then, the U-shaped handrail 120 is released to allow it to fall to the ground. This continuous, slight lifting and lowering of the U-shaped handrail 120 causes the entire support frame 110 and mold 200 to vibrate up and down. This vibration effectively breaks the adhesion between the concrete component and the inner wall of the mold 200, allowing the component to fall smoothly and completely onto the ground or buffer pad below, completing the demolding. After demolding is completed, the support frame 110 is rotated 180 degrees around the rotating seat 113 to return to its initial horizontal state. The roller 114a of the first support rod 114 touches the ground again, and the empty mold 200 can be removed to proceed to the next round of operations.

[0020] In some embodiments, a locking member 130 is provided between the second abutment 116 and the U-shaped handrail 120 to fix the second abutment 116 and the U-shaped handrail 120. In this embodiment, by providing the locking member 130, when the tool is rotated 180° to the demolding state, the locking member 130 can fix the U-shaped handrail 120 to the support frame 110, preventing damage to the precast components caused by the support frame 110 rapidly flipping over at a large angle during the rotation process. This greatly improves the safety and stability of the operation and avoids injury to the operator. Furthermore, when moving to the demolding station, the locking member 130 can be used to lock the device, ensuring the overall stability of the equipment during the transfer process.

[0021] In some embodiments, the locking member 130 includes a grip-type controller 131, which is connected to a pin 133 via a steel wire 132. The pin 133 is horizontally slidably connected to the U-shaped handrail 120 via an elastic member 134. The second abutment member 116 is provided with a pin hole 116a for the pin 133 to pass through. This application embodiment provides a specific locking solution that can be operated remotely without removing the hand from the U-shaped handrail 120. The operator does not need to bend over or approach the support frame 110; they can release or lock the pin 133 via the grip controller while holding the handrail. The operation is very convenient and efficient, further optimizing human-computer interaction.

[0022] In some embodiments, the elastic element 134 includes a spring 134a sleeved on the pin 133 and a mounting block 134b fixed to the U-shaped handle 120. Two upright plates 134c are symmetrically arranged at the top of the mounting block 134b. The pin 133 passes through the upright plates 134c. One end of the spring 134a away from the steel wire 132 is fixed to the pin 133, and the other end abuts against the inner side of the upright plate 134c. In this embodiment, by configuring components such as the spring 134a and the upright plate 134c to cooperate with each other, it is ensured that the pin 133 can automatically extend and remain locked under the action of the spring 134a when not under tension (normally closed safety design). This makes the locking element 130 provided in this embodiment reliable in operation, with a low failure rate, and can only be unlocked when the handle is actively pulled, thus enhancing security.

[0023] In some embodiments, an auxiliary rod 121 is provided in the middle of the U-shaped handrail 120, and the two ends of the auxiliary rod 121 are respectively fixed to the inner sides of the U-shaped handrail 120. In this embodiment, through the above-mentioned arrangement, the auxiliary rod 121 greatly enhances the overall structural strength and rigidity of the U-shaped handrail 120. When lifting and vibrating heavy objects, it can effectively prevent the handrail from deforming or twisting laterally, extend the service life of the tool, and when the tool is rotated 180° to the demolding state, the operator can hold the auxiliary rod 121 to perform hand-changing operations.

[0024] In some embodiments, the gripping portion of the U-shaped handrail 120 is fitted with an anti-slip sleeve 122. In this embodiment, the anti-slip sleeve 122 improves the safety and comfort of operation. In construction environments where physical exertion is high and palms tend to sweat, the anti-slip sleeve 122 provides sufficient friction, effectively preventing tools from slipping out of the hand, reducing the risk of accidents, and alleviating hand fatigue during prolonged operation.

[0025] In some embodiments, a guide horn 112a is provided at the entrance of the chute 112. In this embodiment, by providing the guide horn 112a, the ear plate 210 of the mold 200 can be guided to slide into the chute 112 quickly and accurately. Even in poor visibility or misalignment, it can be easily guided in through the inclined surface of the horn, which significantly improves loading efficiency and reduces adjustment time.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although the foregoing embodiments have provided a detailed description of this application, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A convenient demolding tool for small precast components, characterized in that, The support frame includes a square support frame and a U-shaped handrail. The support frame includes two parallel slide rails. The two slide rails are respectively provided with a groove extending to the outside of the support frame on the side that is close to each other. The middle part of the two slide rails on the side that is opposite to each other is rotatably connected to the two ends of the U-shaped handrail through a rotating seat. The front two sides of the support frame are respectively vertically fixed with first support rods. The lower end of the first support rod is provided with a roller and the upper end is arc-shaped. The front end of the first support rod is provided with an arc-shaped support boss. The front and rear ends of the support frame located on the rotating seat side are respectively provided with a first abutment and a second abutment for abutting the U-shaped handrail. The rear top two sides of the support frame are respectively provided with second support rods along the vertical direction.

2. The convenient demolding tool for small precast components according to claim 1, characterized in that, A locking element is provided between the second abutment and the U-shaped handrail to fix the second abutment and the U-shaped handrail.

3. The convenient demolding tool for small precast components according to claim 2, characterized in that, The locking component includes a grip-type controller, which is connected to a pin via a steel wire. The pin is horizontally slidable to the U-shaped handrail via an elastic element. The second abutment component is provided with a pin hole for the pin to pass through.

4. The convenient demolding tool for small precast components according to claim 3, characterized in that, The elastic element includes a spring sleeved on the pin and a mounting block fixed to the U-shaped handrail. Two upright plates are symmetrically arranged at the top of the mounting block. The pin passes through the upright plates. One end of the spring away from the steel wire is fixed to the pin, and the other end abuts against the inner side of the upright plate.

5. The convenient demolding tool for small precast components according to claim 1, characterized in that, An auxiliary rod is provided in the middle of the U-shaped handrail, and the two ends of the auxiliary rod are fixed to the inner sides of the U-shaped handrail respectively.

6. The convenient demolding tool for small precast components according to claim 1, characterized in that, The gripping part of the U-shaped handrail is covered with an anti-slip sleeve.

7. The convenient demolding tool for small precast components according to claim 1, characterized in that, A guide horn is provided at the entrance of the chute.

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