Adjustable mold for prefabricating lintel

Abstract

The invention belongs to the technical field of building material production, and particularly relates to an adjustable lintel prefabrication machining mold which comprises a mold base. A side plate is connected to the mold base in an inserted mode. Two width adjusting plates are connected to the mold base in a sliding mode, and the two width adjusting plates are oppositely arranged. The double-thread lead screw synchronously rotates on the fixing frame by holding the handle to rotate, the two width adjusting plates matched with the double-thread lead screw in a threaded mode slide in the opposite directions, the two width adjusting plates can get close to each other or get away from each other, and therefore the effect of adjusting the width of the adjustable prefabricated mold is achieved. Moreover, when the length of the lintel prefabrication is adjusted, a length adjusting plate is used for replacing a traditional partition plate, the length adjusting plate is slidably connected to the mold base and is matched with a sliding rod to be slidably connected to the mold base to limit the sliding direction of the length adjusting plate, the length adjusting plate slides on the mold base so that the length of the lintel prefabrication can be adjusted, and control over the length of the lintel prefabrication is achieved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of building material production, in particular to a mold for prefabricated beam processing. BACKGROUND

[0002] The building material production special mold for prefabricated beam processing is usually made of lightweight alloy and composite material with high strength and high precision, and is designed to be modular and quickly disassembled to realize efficient recycling. The inner wall of the mold is specially treated to ensure the smooth surface and accurate size of the concrete component, reducing subsequent repair. The production of the mold itself also follows the principle of low carbon, optimizing the use of materials and processes to reduce production energy consumption and material waste, thereby serving the prefabricated component production process of green building in all aspects.

[0003] A patent application with publication number CN117067365A discloses an adjustable concrete beam prefabrication mold and its use method, which includes a partition plate and an open box mold. The box mold is a cuboid formed by a bottom plate, a first sealing plate, a second sealing plate, and two side plates. The partition plate is arranged in the box mold and divides the inner cavity of the box mold into two parts. This application forms a mold by the bottom plate, the first sealing plate, the second sealing plate, and the two side plates, and can adjust the size of the mold pouring area by sliding the partition plate. It not only simplifies the prefabricated beam, but also realizes the pouring of different specifications of beams with the same prefabricated beam mold.

[0004] In building construction, beam is an important structural component used to support the weight of the floor and other building components. In order to improve the structural stability of the building, different beam sizes need to be customized according to different building requirements. Beam prefabrication mold is a tool used to produce beams of different specifications. Traditionally, fixed length molds are used to make beams. The above beam mold adjusts the length of the prefabricated beam by setting the partition plate. However, this beam prefabrication mold can only adjust the length of the beam and cannot meet the needs of more complex specifications.

[0005] Therefore, the present application provides a mold for prefabricated beam processing. SUMMARY

[0006] In order to make up for the shortcomings of the prior art and solve at least one technical problem raised in the background art.

[0007] The technical solution adopted by the application to solve its technical problems is: a mold for prefabricated beam processing, comprising a mold base; a side plate is inserted into the mold base; two width adjusting plates are slidably connected to the mold base, and the two width adjusting plates are oppositely arranged; a fixed frame is fixedly connected to the center of the mold base; a double-threaded screw rod is rotatably connected to the fixed frame, and the two width adjusting plates are threadedly connected to the two sides of the double-threaded screw rod; and a handle is fixedly connected to one end of the double-threaded screw rod.

[0008] Preferably, a plurality of extension rods are fixedly connected to the width adjusting plate, and the ends of the extension rods away from the width adjusting plate are provided as arcs; a plurality of stacking plates are inserted into the extension rods, and the stacking plates are inserted into three extension rods at the same time.

[0009] Preferably, a length adjusting plate is slidably connected to the mold base, and the length adjusting plate is located between the two width adjusting plates; a sliding rod is fixedly connected to the length adjusting plate, and the sliding rod is slidably connected to the mold base.

[0010] Preferably, extension plates are slidably connected to the length adjusting plate through the first elastic members on both sides of the length adjusting plate; a plurality of first insertion rods are fixedly connected to the extension plates; and the extension plates are inserted into the length adjusting plate through the first insertion rods.

[0011] Preferably, a first connecting plate is threadedly connected to each side of the double-threaded screw rod; and the first connecting plate is fixedly connected to the outer part of the extension plate away from the double-threaded screw rod.

[0012] Preferably, two receiving grooves are formed in the length adjusting plate; a plurality of second insertion rods are fixedly connected to the length adjusting plate near the receiving grooves, and the second insertion rods correspond to the extension plates.

[0013] Preferably, a fixed plate is fixedly connected to the width adjusting plate; a telescopic rod is fixedly connected to the outer part of the fixed plate; a sliding plate is fixedly connected to the end of the telescopic rod away from the fixed plate; a plurality of cubes are fixedly connected to the sliding plate; and a plurality of square grooves are formed in the side of the stacking plate near the sliding plate, and the square grooves correspond to the cubes.

[0014] Preferably, a second connecting plate is fixedly connected to the sliding plate, and the second connecting plate is fixedly connected to the two sliding plates; a supporting plate is fixedly connected to the mold base, and the second connecting plate slides on the upper surface of the supporting plate; and a trapezoidal block is slidably connected to the supporting plate through the second elastic members.

[0015] Preferably, a blocking plate is slidably connected to the side plate, and the blocking plate is located at the center of the side plate; and a partition plate is slidably connected to the side plate near the blocking plate.

[0016] Preferably, a plurality of sliding seats are fixedly connected to the bottom end of the mold base; a supporting seat is slidably connected to the outer part of the sliding seat, and a third elastic member is fixedly connected between the sliding seat and the supporting seat; and a foot pedal is fixedly connected to the center bottom of the mold base.

[0017] The beneficial effects of the present application are as follows: 1. The adjustable beam prefabrication mold of the present application, by holding the handle, the double threaded screw rod is rotated synchronously on the fixed frame, the two width adjusting plates threaded with the double threaded screw rod slide in opposite directions, and the two width adjusting plates can approach or move away from each other, thereby realizing the width adjustment of the adjustable prefabrication mold; and when the length of the prefabricated beam is adjusted, the length adjusting plate replaces the traditional partition plate, the length adjusting plate is slidingly connected to the mold base, and the sliding rod is slidingly connected to the mold base to limit the sliding direction of the length adjusting plate, the length adjusting plate sliding on the mold base can adjust the length of the prefabricated beam, realizing the control of the length of the prefabricated beam; at the same time, the side plate is inserted into the mold base, which belongs to quick assembly, and when the prefabricated beam is taken out, the side plate can be quickly pulled out of the mold base, realizing quick disassembly, greatly improving the assembly and disassembly efficiency of the mold, in addition, the connection between the parts of the mold is stable and tight, which can effectively avoid the problems of slurry leakage and other factors affecting the prefabrication quality during the prefabrication of the beam, ensuring the forming effect and structural strength of the prefabricated beam, and the beam prefabrication mold can meet the demand of more complex specifications, further improving the practicability and economy of the adjustable beam prefabrication mold.

[0018] 2. The adjustable beam prefabrication mold of the present application, by setting a plurality of stacking plates inserted on the extension rod, or removing the stacking plates originally inserted on the extension rod, thereby adjusting the height of the mold pouring area, realizing the prefabrication operation of beams with different thicknesses; and since the end of the extension rod away from the width adjusting plate is provided with a circular arc, during the assembly of the adjustable prefabrication mold, the stacking plates can be effectively guided to be inserted on the three extension rods for limiting, reducing the friction between the parts, in addition, the design of simultaneously inserting a plurality of stacking plates on the three extension rods enhances the connection stability between the parts of the mold, ensures that the mold will not be loose and deformed during the prefabrication process, can meet the demand of more complex specifications, and further guarantees the quality and precision of the prefabricated beam. BRIEF DESCRIPTION OF DRAWINGS

[0019] The present application will be further described below with reference to the accompanying drawings.

[0020] Figure 1 is a perspective view of the present application; Figure 2 is a structure diagram of the length adjusting plate in the present application; Figure 3 is a structure diagram of the extension plate in the present application; Figure 4 is a structure diagram of the extension plate in the present application; Figure 5 is a structure diagram of the connecting plate in the present application; Figure 6 is a structure diagram of the sealing plate in the present application.

[0021] In the diagram: 1. Mold base; 11. Side plate; 12. Width adjustment plate; 13. Fixing frame; 14. Double threaded screw; 15. Handle; 2. Extension rod; 21. Stacking plate; 3. Length adjustment plate; 31. Sliding rod; 4. Extension plate; 41. Insert rod No. 1; 42. Extension plate; 5. Connecting plate No. 1; 6. Storage slot; 61. Insert rod No. 2; 7. Fixing plate; 71. Telescopic rod; 72. Sliding plate; 73. Block; 8. Connecting plate No. 2; 81. Support plate; 82. Trapezoidal block; 9. Sealing plate; 91. Divider plate; 92. Sliding seat; 93. Support seat; 94. Foot pedal. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0023] like Figures 1 to 6 As shown in the embodiment of the present invention, an adjustable prefabrication mold for lintels includes a mold base 1; a side plate 11 is inserted into the mold base 1; two width adjustment plates 12 are slidably connected to the mold base 1, and the two width adjustment plates 12 are arranged opposite to each other; a fixing frame 13 is fixedly connected to the mold base 1 at its center; a double-threaded screw 14 is rotatably connected to the fixing frame 13, and the two width adjustment plates 12 are threadedly connected to both sides of the double-threaded screw 14; a handle 15 is fixedly connected to one end of the double-threaded screw 14; when using the adjustable prefabrication mold to prefabricate lintels, the mold base 1 is used as... The base of the adjustable precast mold is formed by the mold base 1 and the side plate 11. The bottom and two ends of the adjustable precast mold are surrounded by the mold base 1 and the two width adjustment plates 12. The two width adjustment plates 12 are surrounded by the two sides of the adjustable precast mold. When adjusting the width of the precast beam of the mold, the manual handle 15 is held to rotate the double threaded screw 14. The double threaded screw 14 rotates on the fixed frame 13. The two width adjustment plates 12 that are threaded with the double threaded screw 14 slide in opposite directions. The two width adjustment plates 12 can move closer to each other or further away from each other, thereby realizing the function of adjusting the width of the adjustable precast mold. Furthermore, adjustable precast molds can be equipped with partitions of different specifications to adjust the length of the precast beams. The partitions slide between two stacked plates 21, thereby enabling the adjustment of the length of the precast beams precast by the adjustable precast molds. Meanwhile, the side plate 11 is inserted into the mold base 1 for quick assembly. When the prefabrication of the lintel is completed and the material is removed, the side plate 11 can be quickly pulled out from the mold base 1 to achieve rapid disassembly, which greatly improves the assembly and disassembly efficiency of the mold. In addition, the connection between the various components of the mold is stable and tight, which can effectively avoid problems such as grout leakage that affect the prefabrication quality during the prefabrication of the lintel, ensuring the forming effect and structural strength of the prefabricated lintel. The lintel prefabrication mold can meet the needs of more complex specifications, further improving the practicality and economy of the adjustable lintel prefabrication processing mold. The energy efficiency of precast molds lies in reducing the footprint and energy consumption of the production line. Traditionally, a row of fixed molds is required, but now a set of adjustable molds is used for cyclical production at the same workstation. This reduces the length of the production line, correspondingly reducing the space required for the curing area and lowering energy consumption for lighting and temperature control. Compared to traditional lintel molds, this type of energy-saving precast mold can accommodate lintels of various sizes with a single mold, significantly reducing steel consumption and manufacturing energy consumption, thus achieving energy savings. Furthermore, the molds are made of high-strength steel, and their precise design ensures exceptional durability, allowing for hundreds or even thousands of reuses. Compared to wooden molds and disposable molds, the energy and resource consumption over their lifespan is extremely low, resulting in energy savings as well. Precast lintels are precisely sized and fit tightly against the wall after installation, reducing on-site repairs and adjustments, as well as material waste, thus saving energy in construction. One adjustable mold can replace multiple fixed molds, reducing the number and frequency of mold transportation, lowering fuel consumption and carbon emissions in logistics, making it an energy-saving type of lintel mold.

[0024] like Figures 1 to 5 As shown, multiple extension rods 2 are fixedly connected to the width-adjusting plate 12, and the end of the extension rod 2 away from the width-adjusting plate 12 is set as an arc; multiple stacked plates 21 are inserted into the extension rods 2, and the stacked plates 21 are simultaneously inserted into three extension rods 2; when prefabricating lintels of different thicknesses, according to the required thickness of the lintel to be prefabricated, multiple stacked plates 21 are adaptively inserted into the extension rods 2, or the stacked plates 21 originally inserted into the extension rods 2 are removed, thereby adjusting the height of the mold casting area and realizing the prefabrication of lintels of different thicknesses. The control operation is as follows: Furthermore, since the end of the extension rod 2 furthest from the width adjustment plate 12 is set as an arc, during the assembly of the adjustable precast mold, the stacked plate 21 can be effectively guided to be inserted into the upper limit of the three extension rods 2, reducing friction between components. In addition, the design of multiple stacked plates 21 being inserted into the three extension rods 2 simultaneously enhances the connection stability between the various components of the mold, ensuring that the mold will not loosen or deform during the precast process, thus meeting the needs of more complex specifications and further guaranteeing the quality and precision of the precast lintel.

[0025] like Figures 1 to 4As shown, an adjusting plate 3 is slidably connected to the mold base 1, and the adjusting plate 3 is located between two adjusting plates 12; a sliding rod 31 is fixedly connected to the adjusting plate 3, and the sliding rod 31 is slidably connected to the mold base 1; when adjusting the length of the precast lintel, the adjusting plate 3 replaces the traditional partition plate. The adjusting plate 3 is slidably connected to the mold base 1, and the sliding rod 31, in conjunction with the sliding connection to the mold base 1, limits the sliding direction of the adjusting plate 3. The sliding of the adjusting plate 3 on the mold base 1 can adjust the length of the precast lintel, thereby controlling the length of the precast lintel; at the same time, this sliding connection method makes the length adjustment process smoother, reduces the jamming and error during the adjustment process, and improves efficiency. The mold offers excellent applicability and flexibility. Furthermore, the design of the adjusting plate 3 and sliding rod 31 also considers the mold's stability. During sliding adjustment, they maintain a tight connection with other mold components, ensuring the overall structure of the mold is not affected by length adjustment, further guaranteeing the quality of the precast lintel. In addition, when adjusting the length, this mold does not require complex disassembly and reassembly like traditional molds; it can be completed simply by sliding the adjusting plate 3 and sliding rod 31, greatly improving production efficiency and reducing the labor intensity of workers. This makes the adjustable lintel precast processing mold not only able to meet more complex specification requirements but also possess higher practicality and economy.

[0026] Both sides of the adjustable length plate 3 are slidably connected to extension plates 4 via elastic elements. Multiple insertion rods 41 are fixedly connected to the extension plates 4. Extension plates 42 are inserted into the insertion rods 41. When the width of the precast lintel is adjusted, and the adjustable length plate 3 cannot meet the width between the two adjustable width plates 12 after adjustment, the elastic elements are used to push the extension plates 4 out, ensuring they fit tightly against the surface of the adjustable width plates 12. Then, extension plates 42 are added according to the distance between the adjustable length plate 3 and the adjustable width plates 12, and these extension plates 42 are inserted into the insertion rods 41 for fixation and to fill the gap between the adjustable length plate 3 and the adjustable width plates 12. This ensures that the mold remains tightly connected after width adjustment, preventing quality problems such as grout leakage. This design not only enhances the mold's adaptability and flexibility, enabling it to handle more complex precast requirements, but also further improves the forming effect and structural strength of the precast lintel. Therefore, this adjustable lintel precast processing mold not only meets more complex requirements but also demonstrates higher practicality.

[0027] like Figures 1 to 5As shown, both sides of the double-threaded screw 14 are threadedly connected to a No. 1 connecting plate 5; the end of the No. 1 connecting plate 5 away from the double-threaded screw 14 is fixed to the outside of the extension plate 4; when the extension plate 4 is adjusted and slidable, the double-threaded screw 14 is connected to the extension plate 4 using the No. 1 connecting plate 5, so that during the manual rotation of the two width adjustment plates 12, the two No. 1 connecting plates 5 also rotate in thread engagement with the double-threaded screw 14, synchronously driving the two extension plates 4 to slide against each other. The synchronous sliding of the two extension plates 4 further ensures the integrity and stability of the mold during the width adjustment process, avoids mold deformation and slurry leakage caused by local adjustment, and improves the adjustment efficiency and accuracy of the mold. This adjustable lintel prefabrication mold shows higher adaptability and flexibility when dealing with more complex specifications.

[0028] like Figures 1 to 4 As shown, the length adjustment plate 3 has two storage slots 6; multiple second-order insertion rods 61 are fixedly connected to the length adjustment plate 3 near the storage slots 6, and the second-order insertion rods 61 correspond to the extension plates 42; when the width between the two width adjustment plates 12 is narrowed, the multiple extension plates 42 are removed and taken off, and the multiple extension plates 42 are sequentially inserted into the second-order insertion rods 61 at the storage slots 6 on the length adjustment plate 3 for fixed fixation, which is used to limit the storage of the disassembled multiple extension plates 42. This design reduces the loss and damage of the extension plates 42 due to random placement during mold adjustment, facilitates subsequent reuse, and further improves the convenience and integrity of mold use; moreover, the cooperative design of the storage slots 6 and the second-order insertion rods 61 makes the storage of the extension plates 42 more orderly and does not occupy too much extra space. While meeting the mold's adjustment requirements for complex specifications, it also takes into account the rational use of the space around the mold, reflecting the thoroughness and practicality of the adjustable lintel prefabrication mold in detail design, and helps to improve the efficiency and standardization of the entire prefabrication lintel production process.

[0029] like Figures 1 to 5As shown, a fixed plate 7 is fixedly connected to the width adjustment plate 12; a telescopic rod 71 is fixedly connected to the outside of the fixed plate 7; a sliding plate 72 is fixedly connected to the end of the telescopic rod 71 away from the fixed plate 7; multiple blocks 73 are fixedly connected to the sliding plate 72; multiple square slots are opened on the side of the stacking plate 21 near the sliding plate 72, and the square slots correspond to the blocks 73; when multiple stacking plates 21 are stacked on the width adjustment plate 12, the sliding plate 72 is first pulled in the opposite direction to slide on the width adjustment plate 12, the telescopic rod 71 fixed on the fixed plate 7 retracts, its internal spring is stressed, and the stacking plate 21 is inserted into the upper limit of the multiple extension rods 2. Then the sliding plate 72 is released, and the blocks 73 can be inserted into the square slots on one side of the stacking plate 21, so that the sliding plate 72 cooperates with the blocks. The 73 block secures the stacked plates 21, enhancing stability when multiple plates 21 are stacked and reducing displacement and detachment during prefabrication. The corresponding design of the square groove and block 73 ensures precise and reliable fixing of the stacked plates 21, preventing grout leakage and other problems caused by insecure fixing. Furthermore, this detachable fixing structure facilitates replacement and adjustment of the stacked plates 21, improving the mold's flexibility and maintenance efficiency. When dealing with prefabrication requirements of different complex specifications, this mold, through its ingenious fixing design, easily achieves the stacking and fixing of multiple plates 21, thus meeting the prefabrication requirements for beams of different thicknesses and demonstrating greater adaptability and practicality.

[0030] A second connecting plate 8 is fixedly connected to the sliding plate 72, and the second connecting plate 8 is fixedly connected to the two sliding plates 72; a support plate 81 is fixedly connected to the mold base 1, and the second connecting plate 8 slides on the upper surface of the support plate 81; a trapezoidal block 82 is slidably connected to the support plate 81 through a second elastic element; when the two sliding plates 72 slide synchronously, the second connecting plate 8 is manually held and pulled towards one side of the support plate 81, and the second connecting plate 8 is pulled and squeezed into a trapezoidal shape. The inclined surface of block 82 causes the trapezoidal block 82 to be squeezed and slid into the support plate 81. The second elastic element is under force. After the second connecting plate 8 passes over the trapezoidal block 82, the second elastic element returns to its original position and lifts the trapezoidal block 82. The right angle surface of the trapezoidal block 82 limits the second connecting plate 8. The square blocks 73 on the two sliding plates 72 are pulled out from the square grooves, releasing the limitation on the stacking plate 21. After removing the stacking plate 21, the trapezoidal block 82 is pressed down and slids down, releasing the limitation on the second connecting plate 8. Under the action of the spring, the two sliding plates 72 are reset. This design makes the synchronous sliding operation of the two sliding plates 72 more convenient and stable. Through the cooperation of the second connecting plate 8, the support plate 81, and the trapezoidal block 82, the precise control and limitation of the sliding of the two sliding plates 72 are achieved, avoiding deviation and jamming during the sliding process. At the same time, the design of the second elastic element also allows the trapezoidal block 82 to quickly reset after being squeezed, ensuring the limiting effect of the second connecting plate 8. This synchronous sliding and limiting design not only improves the stability and accuracy of the mold during the adjustment process, but also makes the mold operation simpler and more efficient. When dealing with the prefabrication requirements of different complex specifications, the mold can easily realize the stacking, fixing and removal of multiple stacked plates 21 through this ingenious design, thereby meeting the prefabrication requirements of beams of different thicknesses, further demonstrating its high adaptability and practicality.

[0031] like Figures 1 to 3 , Figure 5 , Figure 6As shown, a sealing plate 9 is slidably connected to the side plate 11, and the sealing plate 9 is located at the center of the side plate 11; a partition plate 91 is slidably connected to the side plate 11 near the sealing plate 9; when casting two lintels simultaneously in the adjustable precast mold, the sealing plate 9 slides upward first, and then the partition plate 91 is inserted into the center of the side plate 11. The partition plate 91 divides the interior of the adjustable precast mold into two casting areas, which can be cast simultaneously. This design greatly improves production efficiency and realizes the diversified use of the mold. When it is necessary to produce two lintels of the same specifications at the same time, there is no need to prepare two sets of molds. With a simple sliding operation, the internal space of the mold can be flexibly divided using the partition plate 91 to meet the requirements. Simultaneous casting is required; moreover, the sliding connection between the sealing plate 9 and the partition plate 91 makes the separation process quick and accurate, reducing the time required for mold adjustment and further improving the continuity and efficiency of the production process; at the same time, this design also ensures the independence between the two casting areas, avoiding problems such as slurry mixing during the casting process and ensuring the quality of the precast lintel; in addition, when it is not necessary to cast two lintels at the same time, simply pull the partition plate 91 out of the side plate 11 and then slide the sealing plate 9 back down to reset, and the mold can be restored to the state of a single casting area. This flexible and versatile design allows the adjustable lintel precast processing mold to better adapt to different production scenarios and needs, demonstrating higher practicality and economy.

[0032] like Figure 1 , Figure 2 and Figure 5As shown, multiple sliding seats 92 are fixedly connected to the bottom of the mold base 1; a support seat 93 is slidably connected to the outside of the sliding seat 92, and a third elastic element is fixedly connected between the sliding seat 92 and the support seat 93; a foot pedal 94 is fixedly connected to the center bottom of the mold base 1; during the pouring process in the adjustable precast mold, the worker can step on the foot pedal 94 and press it hard, causing the sliding seat 92 to slide and undulate against the inner wall of the support seat 93 in conjunction with the third elastic element. This undulating motion can generate a certain vibration effect, which is transmitted to the inside of the mold, making the poured concrete more uniform and dense, effectively helping to expel air bubbles inside the concrete, reducing internal pores and defects, thereby improving the structural strength and overall quality of the precast lintel; moreover, the design of the third elastic element... The design ensures that the sliding seat 92 has good buffering and reset performance during sliding, and can flexibly rise and fall according to the force and frequency of the worker's footsteps, ensuring the vibration effect without damaging the mold due to excessive vibration. At the same time, the support seat 93 plays a certain guiding and limiting role in the sliding of the sliding seat 92, ensuring that the sliding seat 92 remains stable during sliding and does not deviate. In addition, this foot-operated vibration method is simple to operate, requires no additional power equipment, and reduces production costs and energy consumption. When dealing with prefabrication requirements of different complex specifications, this vibration design can effectively play its role regardless of the mold size adjustment, further improving the practicality and adaptability of the adjustable lintel prefabrication mold.

[0033] Working process: When using adjustable precast molds to precast lintels, mold base 1 serves as the base of the adjustable precast mold. Mold base 1 and side plates 11 cooperate to form the bottom and end enclosures of the adjustable precast mold. Two width adjustment plates 12 serve as the side enclosures of the adjustable precast mold, forming an adjustable precast mold. The energy saving of the precast mold lies in reducing the floor space and energy consumption of the production line. Traditionally, a row of fixed molds is required. Now, a set of adjustable molds is used for cyclical production at the same workstation. This reduces the length of the production line, correspondingly reduces the space of the curing area, and lowers the energy consumption for lighting and temperature control. When adjusting the width of the precast lintel, the operator manually holds the handle. 15. Rotating the double-threaded screw 14 causes it to rotate on the fixed frame 13. The two width-adjusting plates 12, threadedly engaged with the screw 14, slide relative to each other, allowing them to move closer or further apart, thus adjusting the width of the adjustable precast mold. Furthermore, different specifications of partitions can be added to the adjustable precast mold to adjust the length of the precast lintel. These partitions slide between two stacked plates 21, allowing for adjustment of the length of the precast lintel. Simultaneously, the side plate 11 is quickly attached to the mold base 1, enabling rapid removal of the side plate 11 after precasting of the lintel. The mold base 1 can be pulled out quickly, greatly improving the assembly and disassembly efficiency of the mold. In addition, the connection between the various components of the mold is stable and tight, which can effectively avoid problems such as grout leakage that affect the prefabrication quality during the prefabrication of the lintel, ensuring the forming effect and structural strength of the prefabricated lintel. The lintel prefabrication mold can meet the needs of more complex specifications, further improving the practicality and economy of the adjustable lintel prefabrication processing mold. When prefabricating lintels of different thicknesses, multiple stacked plates 21 can be adaptively inserted into the extension rod 2 according to the required lintel thickness, or the plates originally inserted into the extension rod can be... The stacked plates 21 on the mold can be removed to adjust the height of the casting area, enabling the prefabrication of beams of different thicknesses. Furthermore, since the end of the extension rod 2 away from the width adjustment plate 12 is set as an arc, it can effectively guide the stacked plates 21 to be inserted into the upper limit of the three extension rods 2 during the assembly of the adjustable prefabrication mold, reducing friction between components. In addition, the design of multiple stacked plates 21 being inserted into the three extension rods 2 at the same time enhances the connection stability between the various components of the mold, ensuring that the mold will not loosen or deform during the prefabrication process, which can meet the needs of more complex specifications and further ensure the quality and precision of the prefabricated beams. When adjusting the length of the precast lintel, an adjusting plate 3 replaces the traditional partition. The adjusting plate 3 is slidably connected to the mold base 1, and in conjunction with the sliding rod 31, it is slidably connected to the mold base 1, limiting the sliding direction of the adjusting plate 3. The sliding of the adjusting plate 3 on the mold base 1 allows for adjustment of the precast lintel length, thus controlling the precast lintel length. Simultaneously, this sliding connection method makes the length adjustment process smoother, reducing jamming and errors during adjustment, and improving the applicability and flexibility of the mold. Furthermore, the design of the adjusting plate 3 and the sliding rod 31 also considers the stability of the mold; during sliding adjustment, they maintain tightness with other parts of the mold. The tight connection ensures that the overall structure of the mold is not affected by length adjustment, further guaranteeing the quality of the precast lintel. Furthermore, unlike traditional molds, this mold does not require complex disassembly and reassembly when adjusting the length; it can be done simply by sliding the length adjustment plate 3 and the sliding rod 31, greatly improving production efficiency and reducing the labor intensity of workers. This makes the adjustable lintel precast processing mold not only able to meet more complex specification requirements but also more practical and economical. When the width of the precast lintel is adjusted, if the length adjustment plate 3 cannot match the width between the two width adjustment plates 12 after adjustment, the extension plate 4 is pushed out using the first elastic element. The extension plate 4 is tightly fitted to the surface of the width adjustment plate 12. Then, an extension plate 42 is added adaptively according to the distance between the length adjustment plate 3 and the width adjustment plate 12. The extension plate 42 is inserted into the first insertion rod 41 for fixation and filling the gap between the length adjustment plate 3 and the width adjustment plate 12. This ensures that the mold maintains a tight connection after width adjustment, preventing quality problems such as grout leakage. This design not only enhances the mold's adaptability and flexibility, enabling it to handle more complex prefabrication requirements, but also further improves the forming effect and structural strength of the prefabricated lintel. Therefore, this adjustable lintel prefabrication mold, while meeting more complex specifications, also demonstrates… Greater practicality; when adjusting the sliding of the extension plate 4, the double threaded screw 14 is connected to the extension plate 4 using the No. 1 connecting plate 5. During the manual rotation of the two width adjustment plates 12, the two No. 1 connecting plates 5 also rotate in thread engagement with the double threaded screw 14, synchronously driving the two extension plates 4 to slide against each other. The synchronous sliding of the two extension plates 4 further ensures the integrity and stability of the mold during the width adjustment process, avoiding mold deformation and slurry leakage caused by local adjustment, and improving the adjustment efficiency and accuracy of the mold. This adjustable lintel prefabrication mold shows greater adaptability and flexibility when dealing with more complex specifications. After the width between the two width-adjusting plates 12 is narrowed, multiple extension plates 42 are removed and then inserted into the second rod 61 at the storage slot 6 on the length-adjusting plate 3 for fixation. This design reduces the risk of loss or damage to the extension plates 42 due to random placement during mold adjustment, and facilitates subsequent reuse, further improving the convenience and integrity of the mold. Moreover, the coordinated design of the storage slot 6 and the second rod 61 makes the storage of the extension plates 42 more orderly and does not occupy too much extra space. While meeting the mold's adjustment requirements for complex specifications, it also takes into account the rational use of the space around the mold, reflecting the thoroughness and practicality of the adjustable lintel prefabrication mold in its detailed design, and helping to improve the efficiency and standardization of the entire prefabrication lintel production process. When multiple stacked plates 21 are stacked on the width adjustment plate 12, the sliding plate 72 is first pulled in the opposite direction to slide onto the width adjustment plate 12. The telescopic rod 71 fixed on the fixed plate 7 retracts, and its internal spring is stressed, inserting the stacked plate 21 into the upper limit of the multiple extension rods 2. Then, the sliding plate 72 is released, and the block 73 can be inserted into the square groove on one side of the stacked plate 21, so that the sliding plate 72 and the block 73 fix the stacked plate 21. This fixing method enhances the stability when multiple stacked plates 21 are stacked, reduces the displacement and detachment of the stacked plates 21 during the prefabrication process, and at the same time, the corresponding design of the square groove and the block 73 makes the fixing of the stacked plate 21 more precise and reliable, avoiding This design avoids problems such as grout leakage caused by insecure fixing. Furthermore, the detachable fixing structure facilitates operation when replacing or adjusting the stacked plates 21, improving the mold's flexibility and maintenance efficiency. When dealing with prefabrication requirements of different complex specifications, this mold, through its ingenious fixing design, can easily achieve the stacking and fixing of multiple plates 21, thus meeting the prefabrication requirements for lintels of different thicknesses, demonstrating higher adaptability and practicality. When the two sliding plates 72 slide synchronously, the operator manually holds the second connecting plate 8 and pulls it towards one side of the support plate 81. The second connecting plate 8 is pulled and squeezed against the inclined surface of the trapezoidal block 82, causing the trapezoidal block 82 to be... When the second sliding plate 8 is pressed into the support plate 81, the second elastic element is stressed. After the second connecting plate 8 passes the trapezoidal block 82, the second elastic element returns to its original position and lifts the trapezoidal block 82. The right-angled surface of the trapezoidal block 82 limits the second connecting plate 8. The square blocks 73 on the two sliding plates 72 are pulled out from the square slots, releasing the restriction on the stacking plate 21. After removing the stacking plate 21, the trapezoidal block 82 is pressed down and slides down, releasing the restriction on the second connecting plate 8. Under the action of the spring, the two sliding plates 72 return to their original position. This design makes the synchronous sliding operation of the two sliding plates 72 more convenient and stable. Through the cooperation of the second connecting plate 8, the support plate 81, and the trapezoidal block 82, the sliding operation of the two sliding plates 72 is realized. The precise control and limiting of the movement avoids deviations and jamming during the sliding process. At the same time, the design of the second elastic element allows the trapezoidal block 82 to quickly reset after being squeezed, ensuring the limiting effect on the second connecting plate 8. This synchronous sliding and limiting design not only improves the stability and accuracy of the mold during the adjustment process, but also makes the mold operation simpler and more efficient. When dealing with the prefabrication requirements of different complex specifications, the mold can easily realize the stacking, fixing and removal of multiple stacked plates 21 through this ingenious design, thereby meeting the prefabrication requirements of beams of different thicknesses, further demonstrating its high adaptability and practicality. When casting two lintels simultaneously in an adjustable precast mold, the sealing plate 9 slides upward first, followed by the insertion of the partition plate 91 into the center of the side plate 11. The partition plate 91 divides the interior of the adjustable precast mold into two casting zones, allowing simultaneous casting in both zones. This design significantly improves production efficiency and enables the mold to be used in multiple ways. When two lintels of the same specifications need to be produced simultaneously, there is no need to prepare two sets of molds. A simple sliding operation using the partition plate 91 can flexibly divide the internal space of the mold to meet the requirements of simultaneous casting. Moreover, the sliding connection between the sealing plate 9 and the partition plate 91 allows for… The separation process is quick and accurate, reducing the time required for mold adjustment and further improving the continuity and efficiency of the production process. At the same time, this design also ensures the independence between the two casting zones, avoiding problems such as slurry mixing during the casting process and ensuring the quality of the precast lintels. In addition, when it is not necessary to cast two lintels at the same time, simply pull the separator plate 91 out of the side plate 11 and then slide the sealing plate 9 back down to reset the mold, and the mold can be restored to the state of a single casting zone. This flexible and versatile design allows the adjustable lintel precast processing mold to better adapt to different production scenarios and needs, demonstrating higher practicality and economy. During the pouring process within the adjustable precast mold, workers can press down on the foot pedal 94, causing the sliding seat 92 to slide against the inner wall of the support base 93 in conjunction with the No. 3 elastic element. This undulating motion generates vibration, which is transmitted to the inside of the mold, making the poured concrete more uniform and dense. This effectively helps to expel air bubbles from the concrete, reducing internal porosity and defects, thereby improving the structural strength and overall quality of the precast lintel. Furthermore, the design of the No. 3 elastic element gives the sliding seat 92 good cushioning and reset performance during sliding, adapting to the force and frequency of the worker's foot pressure. The flexible undulation design ensures effective vibration without damaging the mold due to excessive vibration. Simultaneously, the support base 93 guides and limits the sliding of the sliding seat 92, ensuring its stability during sliding and preventing deviation. Furthermore, this foot-operated vibration method is simple to use, requiring no additional power equipment, thus reducing production costs and energy consumption. When dealing with prefabrication requirements of various complex specifications, this vibration design effectively functions regardless of the mold's adjusted size, further enhancing the practicality and adaptability of this adjustable lintel prefabrication mold.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mold for adjustable lintel prefabrication, characterized in that: The device includes a mold base; a side plate is inserted into the mold base; two width adjustment plates are slidably connected to the mold base, and the two width adjustment plates are arranged opposite to each other; a fixing frame is fixedly connected to the mold base at its center; a double-threaded screw is rotatably connected to the fixing frame, and the two width adjustment plates are threaded to both sides of the double-threaded screw; a handle is fixedly connected to one end of the double-threaded screw.

2. The mold for adjustable lintel prefabrication according to claim 1, characterized in that: Multiple extension rods are fixedly connected to the width adjustment plate, and the end of the extension rod away from the width adjustment plate is set as an arc; multiple stacked plates are inserted into the extension rods, and the stacked plates are simultaneously inserted into three extension rods.

3. The mold for adjustable lintel prefabrication according to claim 1, characterized in that: An adjustable length plate is slidably connected to the mold base, and the adjustable length plate is located between two adjustable width plates; a sliding rod is fixedly connected to the adjustable length plate, and the sliding rod is slidably connected to the mold base.

4. The mold for adjustable lintel prefabrication according to claim 3, characterized in that: Both sides of the length adjustment plate are slidably connected to extension plates via elastic elements; multiple insertion rods are fixedly connected to the extension plates; and extension plates are inserted into the insertion rods.

5. The mold for adjustable lintel prefabrication according to claim 4, characterized in that: Both sides of the double-threaded lead screw are threadedly connected to a No. 1 connecting plate; the end of the No. 1 connecting plate away from the double-threaded lead screw is fixed to the outside of the extension plate.

6. The mold for adjustable lintel prefabrication according to claim 4, characterized in that: The length adjustment plate has two storage slots; multiple No. 2 insert rods are fixedly connected to the length adjustment plate near the storage slots, and the No. 2 insert rods correspond to the extension plate.

7. The mold for adjustable lintel prefabrication according to claim 2, characterized in that: A fixed plate is fixedly connected to the width adjustment plate; a telescopic rod is fixedly connected to the outside of the fixed plate; a sliding plate is fixedly connected to the end of the telescopic rod away from the fixed plate; multiple blocks are fixedly connected to the sliding plate; multiple square slots are opened on the side of the stacking plate near the sliding plate, and the square slots correspond to the blocks.

8. The mold for adjustable lintel prefabrication according to claim 7, characterized in that: A second connecting plate is fixedly connected to the sliding plate, and the second connecting plate is fixedly connected to the two sliding plates; a support plate is fixedly connected to the mold base, and the second connecting plate slides on the upper surface of the support plate; a trapezoidal block is slidably connected to the support plate through a second elastic element.

9. The mold for adjustable lintel prefabrication according to claim 1, characterized in that: A sealing plate is slidably connected to the side plate, and the sealing plate is located at the center of the side plate; a partition plate is slidably connected to the side plate near the sealing plate.

10. The mold for adjustable lintel prefabrication according to claim 1, characterized in that: The bottom of the mold base is fixedly connected to multiple sliding seats; the sliding seats are slidably connected to a support seat, and a third elastic element is fixedly connected between the sliding seats and the support seat; a foot pedal is fixedly connected to the bottom center of the mold base.

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