Concrete prefabricated part mold capable of preventing demolding air holes from being blocked

Abstract

The utility model discloses a concrete prefabricated part mould capable of preventing demoulding air holes from being blocked, relates to the technical field of concrete pouring, and aims to solve the problems of concrete leakage, abnormal shape and size and quality damage caused by failure of a blocking part during pouring, the concrete prefabricated part mould comprises a mould body, the bottom of the mould body is fixedly connected with a bottom plate, and symmetrical air holes are formed in the bottom plate. Air hole control assemblies are arranged on the air holes, each air hole control assembly comprises a driving motor, a power output shaft of each driving motor is connected with a rotating threaded rod through a coupler, the two ends of the outer side of each rotating threaded rod are movably connected with limiting frames, and the two ends of the inner side of each limiting frame are fixedly connected with auxiliary rods. The concrete prefabricated part mold capable of preventing the demolding air holes from being blocked has the advantages that in the pouring process, the blocking pieces seal the holes and prevent leakage, the shape and size of concrete are guaranteed, and the quality is stable; and during demolding, the air holes form pressure difference, so that the adsorption force is reduced, the efficiency is improved, and time and labor are saved.

Description

Technical Field

[0001] This utility model relates to the field of concrete precast casting technology, and in particular to a concrete precast mold that prevents the blockage of air pores during demolding. Background Technology

[0002] Precast concrete casting refers to the construction process of pouring mixed concrete into a formwork, leveling it, and compacting it. This process is crucial for ensuring the quality and safety of buildings and is applicable to various construction projects, especially those requiring rapid construction and low cost, such as residential buildings, commercial buildings, and bridges.

[0003] During concrete pouring, the sealing components fail to seal, causing concrete to leak out, resulting in distorted shape and dimensional deviations, thus compromising the pouring quality. During demolding, the pores are blocked, preventing airflow and creating no pressure difference. The strong adhesion between the concrete and the mold leads to low demolding efficiency and consumes a lot of time and manpower. Utility Model Content

[0004] This utility model discloses a precast concrete mold to prevent clogging of the pores during demolding, aiming to solve the technical problems of concrete leakage, abnormal shape and size, and quality damage caused by the failure of the clogging component during pouring; and the lack of pressure difference due to blocked pores during demolding, resulting in strong adsorption, low efficiency, and time and labor consumption.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a precast concrete mold for preventing blockage of air holes during demolding, comprising a mold, a base plate fixedly connected to the bottom of the mold, symmetrical air holes provided on the base plate, an air hole control component provided on each air hole, the air hole control component including a drive motor, the power output shaft of the drive motor being connected to a rotating threaded rod via a coupling, a limit frame being movably connected to both ends of the outer side of the rotating threaded rod, an auxiliary rod being fixedly connected to both ends of the inner side of the limit frame, a sliding member being movably connected to both the auxiliary rod and the outer side of the rotating threaded rod, a telescopic drive rod being fixedly connected to the inner side of the front end of the sliding member, a connecting round member being fixedly connected to the bottom end of the telescopic drive rod, an air bladder being fixedly connected to the bottom end of the connecting round member, a blocking member being fixedly connected to the bottom end of the air bladder, the outer side of the blocking member being located inside the air hole, an air supply pipe being fixedly connected to the top end of the air bladder, an air pump being fixedly connected to one end of the air supply pipe, and the outer side of the air pump being fixedly connected to the bottom end of the base plate.

[0006] The system comprises a base plate, a mold, and an air vent control assembly. During concrete pouring, a drive motor rotates a threaded rod. Limiting frames are movably connected to both outer ends of the threaded rod, and auxiliary rods at both inner ends of the limiting frames guide the sliding component. This causes the sliding component to move along the threaded rod and auxiliary rods. The sliding component extends towards the telescopic drive rod at its front end. As the telescopic drive rod extends, the connecting round component, air bladder, and plug also move downwards. When the plug reaches the air vent position, the air pump starts, inflating the air bladder through an air supply pipe. The inflated air bladder causes the plug to fit tightly against the inside of the air vent, thus sealing it and preventing concrete leakage during pouring. When the concrete dries in the mold and meets demolding requirements, the air pump is activated to extract the gas from the air bladder. The air bladder contracts, releasing the tight connection between the plug and the air vent. The telescopic drive rod then retracts, causing the connecting round component, air bladder, and plug to move upwards, moving them away from the air vent position. The drive motor reverses, causing the rotating threaded rod to rotate in the opposite direction, which in turn moves the sliding part in the opposite direction, causing the blocking part to completely leave the air hole and exposing the air hole. During the process, when the concrete is poured, the blocking part can tightly seal the air hole to prevent concrete leakage, ensuring that the concrete inside the mold is intact and the dimensions are accurate, thus guaranteeing the pouring quality. When demolding, the exposure of the air hole allows air to enter, creating a pressure difference, which reduces the adhesion between the concrete and the mold, making it easier for the concrete to detach from the mold, improving demolding efficiency, and saving time and labor costs.

[0007] In a preferred embodiment, a base bracket is fixedly connected to the bottom end of the base plate, the pneumatic control components are all located inside the base bracket, and symmetrical positioning rings are fixedly connected to the bottom end of the base plate, the positioning rings are all located outside the airbag, an air pump frame is fixedly connected to the bottom end of the base plate, the air pump frame is located between the symmetrical positioning rings, and an air pump is fixedly connected to the inner side of the air pump frame, the front end of the air pump is fixedly connected to an air pipe.

[0008] The system comprises a base bracket, air pipes, an air pump, an air pump frame, and positioning rings. From concrete production to demolding, the air pore control and bubble elimination components are in their initial state: the plugging component has not yet blocked the air pores, and the pneumatic vibrator has not been activated. When the air pore control component moves the plugging component to the air pore position, the air pump inflates the airbag. The inflated airbag causes the plugging component to tightly adhere to the inside of the air pore, blocking it and preventing concrete leakage. The concrete is then poured into the mold with the air pores blocked. After the concrete is poured into the mold, the air pump inside the air pump frame is activated. The air pump supplies air to the pneumatic vibrator in the bubble elimination component through the air pipes. The pneumatic vibrator begins to work, vibrating the base plate, and the vibration is transmitted to the concrete. The process involves moving air bubbles in the concrete upwards and expelling them, thus eliminating air bubbles and improving the density and quality of the concrete. The mold is kept still, allowing the concrete to dry naturally and gradually solidify. Once the concrete is dry enough to meet demolding requirements, the air pump is activated to extract the gas from the airbag. The airbag contracts, releasing the tight connection between the plug and the air hole. The telescopic drive rod retracts, moving the airbag and plug upwards, away from the air hole. The plug is then completely removed from the air hole, exposing it. At this point, outside air enters the gap between the mold and the concrete through the air hole, creating a pressure difference that facilitates smooth demolding. This completes the entire process of concrete production, air bubble elimination, and demolding.

[0009] In a preferred embodiment, the front end of the air tube is provided with a bubble elimination assembly, which includes a pneumatic vibrator. The front end of the pneumatic vibrator is in contact with the bottom end of the base plate. A connecting frame is fixedly connected to the outer side of the pneumatic vibrator. A fixing rod is fixedly connected to the inner side of each of the four ends of the connecting frame. A fixing frame is fixedly connected to both ends of the fixing rod. A telescopic rod is fixedly connected to the bottom end of each fixing frame. A vibration spring is fixedly connected to the bottom end of each fixing frame. The vibration spring is located on the outer side of the telescopic rod. The bottom ends of the vibration spring and the telescopic rod are fixedly connected to the inner bottom end of the base bracket. A connecting rod is fixedly connected to the front end of each of the multiple fixing frames. A vibration diffuser is fixedly connected to the front end of each connecting rod. The front end of the vibration diffuser is in contact with the bottom end of the base plate.

[0010] Equipped with an air bubble elimination component, the pneumatic vibrator is stationary when eliminating air bubbles inside the concrete. The air pump inside the pump frame starts, supplying compressed air to the vibrator through an air pipe. The compressed air enters the vibrator, causing it to vibrate. Since its front end is in contact with the bottom of the base plate, the vibration is directly transmitted to the base plate, causing it to vibrate. This vibration gradually transfers to the concrete inside the mold. As the vibrator vibrates, the connecting frame moves with it. The fixing rods on the four inner ends of the connecting frame are connected to the fixed frame, causing the fixed frame to vibrate as well. The telescopic rod and vibration spring at the bottom of the fixed frame act as a buffer and stabilizer. The vibration spring compresses and extends during vibration, absorbing and releasing some of the vibration energy to prevent excessive vibration from damaging the entire device. The telescopic rod limits the range of motion of the fixed frame, ensuring its stability during vibration. The connecting rod at the front end of the fixed frame drives the vibration diffuser to move. The vibration diffuser has a large contact area with the bottom of the base plate, which can transmit the vibration generated by the pneumatic vibrator to the base plate more evenly and widely. Through the action of the vibration diffuser, the vibration effect of the base plate is enhanced, so that the concrete is vibrated more fully. Under the vibration action of the base plate and the vibration diffuser, the air bubbles inside the concrete are affected by the vibration, overcome the viscous resistance of the concrete, and gradually move upward and are discharged from the concrete surface. As the vibration continues, the air bubbles inside the concrete are continuously eliminated, making the concrete denser and improving the quality of the concrete. When the predetermined vibration time is reached or the air bubbles inside the concrete are basically eliminated, the air pump is turned off and the supply of compressed air to the pneumatic vibrator is stopped. The moving parts inside the pneumatic vibrator stop moving, the vibration gradually stops, the vibration spring and the telescopic rod gradually return to the initial state, and the air bubble elimination component returns to the stationary state.

[0011] As can be seen from the above, the concrete precast mold provided by this utility model for preventing pore blockage during demolding has the technical effects of sealing the pores to prevent leakage during casting, maintaining the shape and size of the concrete, and stabilizing the quality; and creating a pressure difference through the pores during demolding, reducing the adsorption force and improving efficiency, thus saving time and effort. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a precast concrete mold for preventing blockage of demolding pores, as proposed in this utility model.

[0013] Figure 2 This is a schematic diagram of the internal structure of the bottom support frame of a precast concrete mold for preventing blockage of the demolding pores, as proposed in this utility model.

[0014] Figure 3 This is a schematic diagram of the structure above the bottom plate of a precast concrete mold for preventing blockage of the demolding pores, as proposed in this utility model.

[0015] Figure 4A schematic diagram of the structure of a bubble elimination component for a precast concrete mold that prevents blockage of the pores during demolding, as proposed in this utility model.

[0016] Figure 5 This invention presents a schematic diagram of a pore control component for a precast concrete mold designed to prevent pore blockage during demolding.

[0017] In the attached diagram: 1. Mold; 2. Base plate; 3. Base bracket; 4. Air vent control assembly; 401. Drive motor; 402. Rotary threaded rod; 403. Auxiliary rod; 404. Limiting frame; 405. Sliding component; 406. Telescopic drive rod; 407. Connecting circular component; 408. Airbag; 409. Blocking component; 410. Air delivery pipe; 411. Air pump; 5. Air pipe; 6. Air pump machine; 7. Air pump frame; 8. Bubble elimination assembly; 801. Pneumatic vibrator; 802. Connecting frame; 803. Fixing rod; 804. Fixing frame; 805. Vibration spring; 806. Telescopic rod; 807. Connecting rod; 808. Vibration diffuser; 9. Positioning circular ring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] The concrete precast mold disclosed in this utility model for preventing pore blockage during demolding is mainly used in scenarios where concrete leakage occurs due to blockage failure during pouring, resulting in abnormal shape, size, and quality; and where pore blockage during demolding leads to no pressure difference, strong adsorption, low efficiency, and time and labor consumption.

[0020] Reference Figures 1-5A precast concrete mold for preventing clogging of demolding pores includes a mold 1. A base plate 2 is bolted to the bottom of the mold 1. Symmetrical pores are provided on the base plate 2, and each pore is equipped with a pore control component 4. The pore control component 4 includes a drive motor 401. The power output shaft of the drive motor 401 is connected to a rotating threaded rod 402 via a coupling. Both outer ends of the rotating threaded rod 402 are rotatably connected to a limit frame 404. Both inner ends of the limit frame 404 are bolted to auxiliary rods 403. The auxiliary rods 403 and the outer sides of the rotating threaded rod 402 are connected by sliding... A sliding member 405 is dynamically connected. The inner side of the front end of the sliding member 405 is bolted to a telescopic drive rod 406. The bottom end of the telescopic drive rod 406 is bolted to a connecting round member 407. The bottom end of the connecting round member 407 is bolted to an airbag 408. The bottom end of the airbag 408 is bolted to a blocking member 409. The outer side of the blocking member 409 is located inside the air hole. The top end of the airbag 408 is bolted to an air delivery pipe 410. One end of the air delivery pipe 410 is bolted to an air pump 411. The outer side of the air pump 411 is bolted to the bottom end of the base plate 2.

[0021] Reference Figure 1 , Figure 2 and Figure 3 In a preferred embodiment, the bottom end of the base plate 2 is bolted to a base bracket 3, the pneumatic control components are all located inside the base bracket 3, and the bottom end of the base plate 2 is bolted to symmetrical positioning rings 9, which are all located on the outside of the airbag 408. The bottom end of the base plate 2 is bolted to an air pump frame 7, which is located between the symmetrical positioning rings 9, and the inner side of the air pump frame 7 is bolted to an air pump 6, the front end of the air pump 6 is bolted to an air pipe 5.

[0022] Reference Figure 2 , Figure 3 and Figure 4In a preferred embodiment, an air bubble elimination assembly 8 is provided at the front end of the air pipe 5. The air bubble elimination assembly 8 includes a pneumatic vibrator 801, and the front end of the pneumatic vibrator 801 is in contact with the bottom end of the base plate 2. A connecting frame 802 is bolted to the outer side of the pneumatic vibrator 801. A fixing rod 803 is bolted to the inner side of each of the four ends of the connecting frame 802, and a fixing frame 804 is bolted to both ends of the fixing rod 803. The bottom ends of the multiple fixing frames 804 are bolted to the bottom. The bottom of each of the fixed brackets 804 and the telescopic rod 806 is bolted to a vibration spring 805, and the vibration spring 805 is located on the outside of the telescopic rod 806. The bottom of the vibration spring 805 and the telescopic rod 806 are bolted to the bottom of the inner side of the base bracket 3. The front ends of the multiple fixed brackets 804 are bolted to a connecting rod 807, and the front ends of the connecting rods 807 are bolted to a vibration diffuser 808. The front ends of the vibration diffuser 808 are in contact with the bottom of the base plate 2.

[0023] Working principle: When the concrete is demolded, the air pore control component 4 and the air bubble elimination component 8 are in their initial state, that is, the blocking component 409 does not block the air pores and the pneumatic vibrator 801 is not activated. The drive motor 401 in the air pore control component 4 is activated. The drive motor 401 drives the rotating threaded rod 402 to rotate through the coupling, causing the sliding component 405 to move on the rotating threaded rod 402 and the auxiliary rod 403. The sliding member 405 drives the telescopic drive rod 406 to extend, causing the connecting round member 407, airbag 408, and blocking member 409 to move downwards. When the blocking member 409 reaches the air hole position, the air pump 411 inflates the airbag 408. The inflated airbag 408 causes the blocking member 409 to fit tightly against the inside of the air hole, blocking it and preventing concrete leakage. The concrete is then poured into the mold with the air hole blocked. After the concrete is poured into the mold, the air pump 6 inside the air pump frame 7 is started. The air pump 6 supplies air to the pneumatic vibrator 801 in the air bubble elimination assembly 8 through the air pipe 5. The pneumatic vibrator 801 starts working, vibrating the base plate 2. The vibration is transmitted to the inside of the concrete, causing the air bubbles in the concrete to move upwards and be expelled, thus eliminating the air bubbles and improving the density and quality of the concrete. Keep the mold still and allow the concrete to dry naturally in the mold, gradually solidifying and forming. After the concrete has dried to the point where it meets the demolding conditions, start the air pump 411 to extract the gas from the airbag 408. The airbag 408 contracts, and the tight connection between the plug 409 and the air hole is released. The telescopic drive rod 406 contracts, driving the connecting round part 407, the airbag 408, and the plug 409 to move upward, so that they are away from the air hole. The drive motor 401 reverses, and the rotating threaded rod 402 rotates in the opposite direction, driving the sliding part 405 to move in the opposite direction, so that the plug 409 is completely away from the air hole, and the air hole is exposed. At this time, outside air enters the gap between the mold 1 and the concrete through the air hole, forming a pressure difference, which helps the concrete to be demolded smoothly, completing the entire process of concrete production, air bubble elimination, and demolding.

[0024] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A precast concrete mold for preventing clogging of release pores, comprising a mold (1), characterized in that, The bottom of the mold (1) is fixedly connected to a base plate (2). Symmetrical air holes are provided on the base plate (2). Each air hole is provided with an air hole control component (4). The air hole control component (4) includes a drive motor (401). The power output shaft of the drive motor (401) is connected to a rotating threaded rod (402) through a coupling. Both outer ends of the rotating threaded rod (402) are movably connected to a limit frame (404). Both inner ends of the limit frame (404) are fixedly connected to an auxiliary rod (403). Both the auxiliary rod (403) and the outer sides of the rotating threaded rod (402) are movably connected to a sliding member (405). The sliding part (405) is fixedly connected to the inner side of the front end of the sliding part (405). The bottom end of the sliding part (406) is fixedly connected to the connecting round part (407). The bottom end of the connecting round part (407) is fixedly connected to the airbag (408). The bottom end of the airbag (408) is fixedly connected to the blocking part (409). The outer side of the blocking part (409) is located inside the air hole. The top end of the airbag (408) is fixedly connected to the air delivery pipe (410). One end of the air delivery pipe (410) is fixedly connected to the air pump (411). The outer side of the air pump (411) is fixedly connected to the bottom end of the base plate (2).

2. A concrete precast element mould according to claim 1, wherein, The bottom end of the base plate (2) is fixedly connected to the base bracket (3), the pneumatic control components are all located inside the base bracket (3), and the bottom end of the base plate (2) is fixedly connected to symmetrical positioning rings (9), which are all located on the outside of the airbag (408).

3. A concrete precast element mold for preventing blowhole plugging during stripping according to claim 1, wherein The bottom end of the base plate (2) is fixedly connected to an air pump frame (7), which is located between symmetrical positioning rings (9). An air pump (6) is fixedly connected to the inner side of the air pump frame (7), and an air pipe (5) is fixedly connected to the front end of the air pump (6).

4. A concrete preform mould according to claim 3, wherein, The front end of the air pipe (5) is provided with a bubble elimination component (8), which includes a pneumatic vibrator (801), and the front end of the pneumatic vibrator (801) is in contact with the bottom end of the base plate (2).

5. A concrete preform mould according to claim 4, wherein, The pneumatic vibrator (801) is fixedly connected to a connecting frame (802) on its outer side. The connecting frame (802) is fixedly connected to a fixing rod (803) on the inner side of each of its four ends. The fixing rod (803) is fixedly connected to a fixing frame (804) on both ends of its two ends.

6. A concrete preform mould according to claim 5, wherein, Each of the multiple fixed frames (804) has a telescopic rod (806) fixedly connected to its bottom end. Each fixed frame (804) has a vibration spring (805) fixedly connected to its bottom end. The vibration spring (805) is located on the outside of the telescopic rod (806). The bottom ends of the vibration spring (805) and the telescopic rod (806) are fixedly connected to the bottom end of the inner side of the base bracket (3).

7. A concrete preform mould according to claim 6, wherein, Each of the multiple fixed frames (804) has a connecting rod (807) fixedly connected to its front end. Each of the connecting rods (807) has a vibration diffuser (808) fixedly connected to its front end. The front end of the vibration diffuser (808) is in contact with the bottom end of the base plate (2).

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