Concrete prefabricated part pouring mold
By designing gears and a base structure, combined with the elastic action of a height telescopic rod and a spring, the problems of unevenness in the cast material and the generation of air bubbles are solved, achieving high-quality molding of precast concrete components and multi-size adaptability of the mold.
Patent Information
- Application Number
- CN202520504803.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-03-20
AI Technical Summary
Existing concrete casting molds are prone to causing unevenness and air bubbles in the cast material during use, which affects the quality of precast components.
The design incorporates a gear and base structure, along with a height telescopic rod and spring. The motor drives the transmission rod to rotate, causing the gears to intermittently strike the base. Combined with the extension and retraction of the spring, this ensures that the molten material is spread evenly within the mold. The socket and slot structure accommodates molds of different sizes for secure fixing.
It effectively avoids unevenness in the cast material, prevents the formation of air bubbles, improves the quality of precast components, and enhances the practicality and ease of disassembly and replacement of the device.
Smart Images

Figure CN223961441U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of casting mold technology, and in particular to a casting mold for precast concrete components. Background Technology
[0002] Concrete is one of the most important civil engineering materials in modern times. It is an artificial stone material made by mixing cementitious materials, granular aggregates (also known as aggregates), water, and, if necessary, admixtures and additives in a certain proportion, uniformly mixing, compacting, and curing.
[0003] Existing paving stones used for sidewalks, residential areas, or parks are all made using concrete casting molds. However, during the casting process, the concrete material may become uneven within the lower mold, affecting the quality of the precast concrete components. Furthermore, the paving stones often contain small air bubbles during casting, resulting in poor quality and negatively impacting user experience. To address these shortcomings, we propose a new type of precast concrete casting mold. Utility Model Content
[0004] The main purpose of this utility model is to provide a concrete precast casting mold that can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A precast concrete casting mold includes a lower mold, a base at the lower end of the lower mold, four sets of height telescopic rods symmetrically arranged at the lower end of the base, springs sleeved on the outer walls of the height telescopic rods, a base plate at the lower end of the height telescopic rods, four sets of connecting frames symmetrically arranged at the upper end of the base plate, a transmission rod between two sets of connecting frames, a gear on the outer wall of the transmission rod, a sprocket at one end of the transmission rod, a transmission chain between two sets of sprockets, a motor at one end of one set of sprockets, two sets of slots symmetrically arranged inside the base, a socket inside the slot, a first screw hole inside the socket, a second screw hole between the slot and the base, and screws on the inner walls of the first and second screw holes.
[0007] Preferably, the gear and transmission rod are welded together, the gear is in contact with the base, the transmission chain and sprocket mesh together, the transmission rod and sprocket are welded together, the socket and slot are detachably connected, and the screw is threadedly connected to the first screw hole and the second screw hole.
[0008] Preferably, a bearing is provided between the transmission rod and the connecting frame, the transmission rod and the connecting frame are movably connected by the bearing, and the connecting frame is welded to the base plate.
[0009] Preferably, the lower mold and the socket are welded together, and the two ends of the spring are detachably connected to the base and the bottom plate, respectively.
[0010] Preferably, both ends of the screw are provided with anti-loosening nuts.
[0011] Preferably, the two ends of the height telescopic rod are welded to the base and the bottom plate, respectively.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. This precast concrete casting mold, through the setting of gears and base structures, allows the motor to drive two sets of transmission rods to rotate at the same speed, so that the gears can intermittently strike the base. Combined with the extension and contraction of the height telescopic rod and spring, the lower mold can continuously bounce. On the one hand, this helps the casting material to spread evenly in the lower mold, thereby avoiding unevenness of the precast concrete casting material in the lower mold. On the other hand, it ensures that the concrete is completely solidified without gaps, preventing the formation of air bubbles, thereby improving the quality of the precast component.
[0014] 2. This precast concrete casting mold, through its socket and slot structure, allows users to weld and fix the socket to lower molds of different sizes, and use screws to fix the connection between the socket and slot. This makes the device suitable for lower molds of different sizes, improving its practicality. Furthermore, the structural components are easy to disassemble and replace, reducing the difficulty of device maintenance. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the combined structure of the base and the lower mold of this utility model;
[0017] Figure 3 This is a schematic diagram of the combined structure of the transmission chain and sprocket of this utility model;
[0018] Figure 4 This is a schematic diagram showing the disassembled structure of the base and socket of this utility model;
[0019] Figure 5 This is a structural schematic diagram of the height telescopic rod of this utility model.
[0020] In the diagram: 1. Lower mold; 2. Base plate; 3. Connecting frame; 4. Motor; 5. Height telescopic rod; 6. Socket; 7. Slot; 8. Screw; 9. Gear; 10. Transmission rod; 11. Transmission chain; 12. Sprocket; 13. Base; 14. Spring; 15. First screw hole; 16. Second screw hole. Detailed Implementation
[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0022] Example 1, as Figure 1 , Figure 2 , Figure 3 as well as Figure 5 As shown, a concrete precast casting mold includes a lower mold 1. A base 13 is detachably connected to the lower end of the lower mold 1. Four sets of height telescopic rods 5 are symmetrically welded to the lower end of the base 13. Springs 14 are sleeved on the outer wall of the height telescopic rods 5. A base plate 2 is welded to the height telescopic rods 5. Four sets of connecting frames 3 are symmetrically welded to the upper end of the base plate 2. A transmission rod 10 is movably connected between two sets of connecting frames 3. A gear 9 is welded to the outer wall of the transmission rod 10. A sprocket 12 is welded to one end of the transmission rod 10. A transmission chain 11 meshes between two sets of sprockets 12. One end of one set of sprockets 12 is detachably connected to a motor 4. The height telescopic rod 5 consists of two sets of sliding rods and a set of limit caps.
[0023] Through the structure of gear 9 and base 13, motor 4 drives two sets of transmission rods 10 to rotate at the same speed, so that gear 9 can intermittently strike base 13. Combined with the extension and retraction of height telescopic rod 5 and spring 14, the lower mold 1 can bounce continuously. On the one hand, it helps the pouring material to spread evenly in the lower mold 1, thereby avoiding unevenness of the concrete precast pouring material in the lower mold. On the other hand, it can make the concrete without gaps and completely solidify together, preventing the generation of air bubbles, thereby improving the quality of precast components.
[0024] Example 2, as Figure 2 as well as Figure 4 As shown, a concrete precast casting mold has two sets of slots 7 symmetrically arranged inside the base 13. The slots 7 are detachably connected to sockets 6. The sockets 6 are provided with a first screw hole 15. A second screw hole 16 is provided between the slots 7 and the base 13. The inner walls of the first screw hole 15 and the second screw hole 16 are threadedly connected to screw rods 8. Anti-loosening nuts are provided at both ends of the screw rods 8.
[0025] With the structure of socket 6 and slot 7, users can weld socket 6 to lower molds 1 of different sizes and fix the connection between socket 6 and slot 7 with screw 8, so that the device can be used for lower molds 1 of different sizes, improving the practicality of the device. In addition, the structural components are easy to disassemble and replace, reducing the difficulty of device maintenance.
[0026] It should be noted that this utility model is a concrete precast casting mold. In use, the user welds and fixes the socket 6 and the lower mold 1, inserts the socket 6 into the slot 7, uses the screw 8 to fix the socket 6 and the slot 7, and then fixes the anti-loosening nut to both ends of the screw 8, thereby completing the limiting and fixing of the lower mold 1. After the casting material is filled into the lower mold 1, the motor 4 drives a set of sprockets 12 to rotate. The sprockets 12 drive the transmission chain 11 to transmit to another set of sprockets 12. The two sets of transmission rods 10 can rotate at the same speed, so that the two sets of gears 9 can intermittently strike the base 13. With the extension and retraction of the height telescopic rod 5 and the spring 14, the lower mold 1 can bounce continuously, which makes it easy for the casting material to expel internal air bubbles.
[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A casting mold for precast concrete components, comprising a lower mold (1), characterized in that: The lower mold (1) is provided with a base (13) at its lower end. Four sets of height telescopic rods (5) are symmetrically arranged at the lower end of the base (13). Springs (14) are sleeved on the outer wall of the height telescopic rods (5). A base plate (2) is provided at the lower end of the height telescopic rods (5). Four sets of connecting frames (3) are symmetrically arranged at the upper end of the base plate (2). A transmission rod (10) is arranged between two sets of connecting frames (3). A gear (9) is provided on the outer wall of the transmission rod (10). A sprocket is provided at one end of the transmission rod (10). 12) A transmission chain (11) is provided between the two sets of sprockets (12). One end of one set of sprockets (12) is provided with an electric motor (4). Two sets of slots (7) are symmetrically arranged inside the base (13). A socket (6) is provided inside the slot (7). A first screw hole (15) is provided inside the socket (6). A second screw hole (16) is provided between the slot (7) and the base (13). A screw (8) is provided on the inner wall of the first screw hole (15) and the second screw hole (16).
2. The concrete precast casting mold according to claim 1, characterized in that: The gear (9) and the transmission rod (10) are welded together. The gear (9) and the base (13) are in contact. The transmission chain (11) and the sprocket (12) are meshed together. The transmission rod (10) and the sprocket (12) are welded together. The socket (6) and the slot (7) are detachably connected. The screw (8) is threadedly connected to the first screw hole (15) and the second screw hole (16).
3. The concrete precast casting mold according to claim 1, characterized in that: A bearing is provided between the transmission rod (10) and the connecting frame (3), and the transmission rod (10) and the connecting frame (3) are movably connected by the bearing. The connecting frame (3) and the base plate (2) are welded together.
4. The concrete precast casting mold according to claim 1, characterized in that: The lower mold (1) and the socket (6) are welded together, and the two ends of the spring (14) are detachably connected to the base (13) and the bottom plate (2) respectively.
5. A precast concrete casting mold according to claim 2, characterized in that: Both ends of the screw (8) are provided with anti-loosening nuts.
6. A precast concrete casting mold according to claim 2, characterized in that: The two ends of the height telescopic rod (5) are welded to the base (13) and the bottom plate (2) respectively.