Auxiliary device for demolding large prefabricated slab of tunnel
By designing an auxiliary device for large precast slabs in tunnels, and adopting a mechanical flipping and clamping structure, the problems of low efficiency, poor safety, and damage to finished products in traditional manual demolding methods are solved, achieving a highly efficient and safe demolding effect.
Patent Information
- Application Number
- CN202520286831.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-02-21
AI Technical Summary
Traditional manual demolding methods are inefficient, unsafe, and difficult to guarantee the quality of finished products in tunnel engineering. In particular, the demolding process of large precast trench covers is characterized by high labor costs, numerous safety hazards, and damage to finished products.
Design an auxiliary device for demolding large precast slabs in tunnels, including a vehicle frame and handrails. The device achieves the flipping and demolding of the mold box through a mechanical structure and uses a clamping structure to limit the mold box and avoid damage caused by manual contact and improper operation.
It improved construction efficiency, reduced safety risks, protected the quality of finished products, ensured the reliability and safety of operation, and met the requirements of current construction standards.
Smart Images
Figure CN223904205U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to tunnel large -scale prefabricated ditch cover plate demolding construction technical field especially relates to a kind of for tunnel large -scale prefabricated board demolding auxiliary device. BACKGROUND
[0002] In tunnel engineering construction, the demolding of large -scale prefabricated ditch cover plate is an important link. However, the traditional demolding method mainly relies on the mode of manual overturning, which has many problems: first, manual demolding needs to consume a lot of manpower and time, and the construction efficiency is low;Second, in the operation process, due to the lack of professional demolding equipment, workers need to directly contact the mold, which can easily cause safety hazards;In addition, the force and precision of manual operation are difficult to control, which often leads to the damage of the corners of prefabricated plate, affects the quality of finished product, and is difficult to meet the requirements of current construction standards.
[0003] At present, professional equipment specially for the demolding of large -scale prefabricated ditch cover plate has not been widely used in tunnel engineering, which leads to the demolding link in the construction process to become the bottleneck restricting the improvement of efficiency and quality. Therefore, how to design an auxiliary device that can overcome the limitations of existing technology to realize the rapid, safe and efficient demolding of large -scale prefabricated plate in tunnel has become a technical problem to be solved. UTILITY MODEL CONTENT
[0004] To solve the above problems, the utility model provides an auxiliary device for the demolding of large -scale prefabricated plate in tunnel, which aims to solve the problems of low efficiency, poor safety and finished product damage in traditional manual demolding mode, so as to significantly improve the construction efficiency and engineering quality.
[0005] The utility model adopts the technical scheme that:
[0006] An auxiliary device for the demolding of large -scale prefabricated plate in tunnel, the auxiliary device for the demolding of large -scale prefabricated plate in tunnel includes car body frame and handrail;The two sides of the front end face of the car body frame are provided with crescent plate, the rear side of the car body frame is formed with mold box entrance, the top and bottom of the car body frame are hollow, the two sides of the car body frame are formed with clamping structure capable of limiting the two side edges of clamped mold box;The handrail is rotatably installed on the car body frame through the shaft body on both sides of the car body frame, and the car body frame can be turned over by 180° relative to the handrail.
[0007] Further, the car body frame includes front end frame, clamping structure and rear end frame;The front end frame and the rear end frame are both composed of several square tubes welded, the front end frame is a one-day character-shaped frame, the rear end frame is an n-shaped frame, and the two sides of the front end frame and the rear end frame are connected through a set of clamping structure respectively;The clamping structure includes upper limit rod and lower limit rod fixedly connected with the front end frame and the rear end frame at both ends.
[0008] Further, the front end face of the front end frame is fixedly connected with a group of crescent plates on both sides, and the crescent plate is an arc-shaped plate protruding outward to the vehicle body frame.
[0009] Further, the handrail is composed of a plurality of round steel pipes welded together and has an overall H shape, and the front end of the handrail is rotationally connected with the lower limiting rod through a shaft body.
[0010] Further, the upper part of the rear end frame on both sides is provided with a first limiting rod capable of limiting the handrail, and the lower part of the front end frame on both sides is provided with a second limiting rod capable of limiting the handrail; the first limiting rod and the second limiting rod both extend outward to the both sides of the vehicle body frame.
[0011] Further, the bottom of the front end frame and the bottom of the rear end frame are both rotationally installed with rubber wheels.
[0012] The beneficial effects of the utility model are as follows:
[0013] The device can quickly realize the overturning and demolding operation of the vehicle body frame and the mold box through the cooperation of the vehicle body frame and the handrail, avoids the time-consuming and labor-consuming problem of the traditional manual overturning mode, and is simple and efficient in the whole process, greatly shortens the demolding time, and improves the construction efficiency.
[0014] The device enhances safety: the traditional manual demolding needs workers to directly contact the mold, and there is a great safety hazard. The device completes the overturning operation through a mechanical structure, reduces manual intervention, effectively reduces the risk of worker injury, and ensures construction safety.
[0015] The device protects the quality of finished products: manual demolding is difficult to control in terms of strength and precision, which can easily cause damage to the corners of the prefabricated slab and affect the quality of finished products. The device uses a clamping structure to limit the mold box, ensures the stability of the mold box during overturning, avoids damage to finished products caused by improper operation, and improves engineering quality.
[0016] The device has a reasonable structure design: the vehicle body frame adopts a modular design of a front end frame, a clamping structure and a rear end frame, and has stable structure and is convenient to maintain. The design of the crescent plate facilitates the overturning of the vehicle body frame, the clamping structure can accurately position the edges of the mold box on both sides, and the reliable operation is ensured. The rotationally connected design of the handrail and the vehicle body frame is flexible and practical, can realize 180° overturning, and is convenient to operate.
[0017] In summary, the utility model provides a high-efficiency, safe and reliable demolding auxiliary device for large prefabricated slabs in tunnels, solves many drawbacks of the traditional manual demolding mode, provides strong technical support for tunnel engineering construction, and has important popularization and application value. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1This is a schematic diagram of the overall structure of the auxiliary device for demolding large precast slabs in tunnels according to this utility model.
[0019] Figure 2 This is a schematic diagram of the overall structure of the vehicle body frame of this utility model;
[0020] Figure 3 , Figure 4 and Figure 5 A schematic diagram illustrating the use of an auxiliary device for demolding large precast slabs in tunnels;
[0021] In the diagram: 1. Vehicle frame; 2. Handrail; 3. Crescent plate; 4. Mold box inlet; 5. Clamping structure; 6. Front frame; 7. Rear frame; 8. Upper limit rod; 9. Lower limit rod; 10. First limit rod; 11. Second limit rod; 12. Rubber wheel; 13. Mold box; 14. Large precast tunnel slab. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0023] To address the problems of low efficiency, poor safety, and easy damage to finished products associated with traditional manual demolding methods, this embodiment provides an auxiliary device for demolding large precast slabs in tunnels; such as... Figure 1 As shown, the auxiliary device for demolding large precast slabs in tunnels consists of a vehicle frame and a handrail. The vehicle frame drives the mold box to rotate 180° relative to the handrail, thereby enabling rapid demolding of large precast slabs in tunnels.
[0024] Specifically, such as Figure 1 and Figure 2 As shown, the auxiliary device for demolding large precast slabs in tunnels includes a vehicle frame as the main structure of the entire device, used to support and limit the mold box and realize the flipping operation. It consists of three parts: a front frame, a clamping structure, and a rear frame. Both the front and rear frames are constructed from several welded square tubes. The front frame is a Z-shaped frame, and the rear frame is an N-shaped frame. The width and height dimensions of the front and rear frames are the same. The two sides of the front and rear frames are connected by a set of clamping structures. The clamping structures include upper and lower limit rods, both fixedly connected to the front and rear frames at both ends. The upper and lower limit rods are also made of square tubes. The rear ends of the upper and lower limit rods are welded and fixed to the rear frame within the N-shaped opening of the rear frame, and the front ends are welded and fixed to the middle square tube of the Z-shaped frame of the front frame.
[0025] Since the rear end frame adopts an n-shaped frame, the rear side of the vehicle body frame forms a mold box entrance, and the mold box can enter the vehicle body frame through the n-shaped opening. Since the two sides of the front end frame and the rear end frame are connected through the clamping structure, the top and bottom of the vehicle body frame are hollow. The bottom hollow part can satisfy the mold box entering the vehicle body frame, and the top hollow part can satisfy the tunnel large prefabricated slab quickly demolding after the vehicle body frame drives the mold box to overturn 180°. The clamping structure on both sides can precisely limit the edges of the two sides of the mold box, ensuring the stability of the mold box during the overturning process.
[0026] In addition, considering the convenience of overturning the vehicle body frame, as shown in Figure 1 and Figure 2 , a set of crescent plates are fixedly welded on the two sides of the front end face of the front end frame in the embodiment. The crescent plates are arc-shaped plates protruding outward from the vehicle body frame. The crescent plates make the overturning of the vehicle body frame more labor-saving.
[0027] The handrails in the embodiment are used to control the movement and overturning of the vehicle body frame. As shown in Figure 1 , the handrails are composed of several round steel pipes and have an overall H shape. The front end of the handrail is rotationally connected to the lower limiting rod through a shaft body, and the vehicle body frame can be moved forward and backward by pulling the handrail. To cooperate with the handrail to control the overturning of the vehicle body frame, as shown in Figure 2 , first limiting rods capable of limiting the handrails are welded on the upper parts of the two sides of the rear end frame in the embodiment. Meanwhile, second limiting rods capable of limiting the handrails are welded on the lower parts of the two sides of the front end frame. The first limiting rods and the second limiting rods both extend outward from the two sides of the vehicle body frame. When the vehicle body frame needs to be overturned clockwise by 180°, the handrail can be lifted upward, and after the handrail abuts against the first limiting rod, the vehicle body frame is overturned clockwise by 180° with the set of crescent plates as the fulcrum. Conversely, when the vehicle body frame needs to be overturned counterclockwise by 180°, the handrail can be pressed downward, and after the handrail abuts against the second limiting rod, the vehicle body frame is overturned counterclockwise by 180° with the set of crescent plates as the fulcrum, and returns to the initial state.
[0028] Based on the above-mentioned auxiliary device for demolding the tunnel large prefabricated slab, the use process is as follows:
[0029] First, as shown in Figure 3 , the vehicle body frame is pulled backward by the handrail, and the mold box enters the vehicle body frame from the mold box entrance at the rear end frame. As shown in Figure 4 , after the mold box enters the vehicle body frame, the edges of the two sides of the mold box are limited by the upper limiting rods and the lower limiting rods of the clamping structure. Then the handrail is lifted upward, and after the handrail abuts against the first limiting rod, the vehicle body frame is overturned clockwise by 180° with the set of crescent plates as the fulcrum. As shown in Figure 5As shown, at this time, the tunnel large prefabricated plate in the mold box is separated from the mold box and falls to the ground, and the rear end frame is quickly removed from the mold box. Finally, after the handrail is pressed to abut against the second limiting rod, the vehicle body frame is flipped counterclockwise by 180° with a group of crescent plates as a fulcrum, and is restored to the initial state, and one tunnel large prefabricated plate demolding operation is completed. The vehicle body frame is dragged by the handrail to the next mold box position, and the above operation is repeated to perform the cycle operation of the tunnel large prefabricated plate demolding.
[0030] Further, as a preferred technical solution of the embodiment, in order to facilitate the movement of the handrail dragging the vehicle body frame, rubber wheels are rotatably installed at the bottom of the front end frame and the rear end frame.
[0031] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.
Claims
1. An auxiliary device for the demoulding of large prefabricated panels for tunnels, characterized in that it comprises: The auxiliary device for tunnel large prefabricated plate demolding includes a vehicle frame and a handrail; both sides of the front end face of the vehicle frame are provided with crescent plates, the rear side of the vehicle frame is formed with a mold box entrance, the top and bottom of the vehicle frame are hollow, both sides of the vehicle frame are formed with clamping structures capable of limiting the edges of the two sides of the clamped mold box; the handrail is rotatably installed on the vehicle frame through shaft bodies on both sides of the vehicle frame, and the vehicle frame can be turned by 180 degrees relative to the handrail.
2. The auxiliary device for demoulding of large prefabricated panels according to claim 1, characterized in that: The vehicle frame includes a front end frame, clamping structures and a rear end frame; the front end frame and the rear end frame are both composed of a plurality of square tubes welded together, the front end frame is a one-day-shaped frame, the rear end frame is an n-shaped frame, and both sides of the front end frame and the rear end frame are connected through a set of clamping structures respectively; the clamping structure includes upper and lower limiting rods fixedly connected with the front end frame and the rear end frame at both ends.
3. The auxiliary device for demoulding of large prefabricated panels according to claim 2, characterized in that: Both sides of the front end face of the front end frame are fixedly connected with a set of crescent plates, which are arc-shaped plates protruding outward from the vehicle frame.
4. The auxiliary device for demoulding of large prefabricated panels according to claim 2, characterized in that: The handrail is composed of a plurality of round steel tubes welded together, and has an overall H shape, and the front end of the handrail is rotatably connected with the lower limiting rod through a shaft body.
5. The auxiliary device for tunneling large precast slab demolding according to claim 2, characterized in that: The upper parts of both sides of the rear end frame are provided with first limiting rods capable of limiting the handrail; the lower parts of both sides of the front end frame are provided with second limiting rods capable of limiting the handrail; and the first limiting rods and the second limiting rods both extend outward from both sides of the vehicle frame.
6. The auxiliary device for tunneling large precast slab demolding according to claim 2, characterized in that: The bottom of the front end frame and the bottom of the rear end frame are both rotatably installed with rubber wheels.