D-shaped interlocking piece prefabricating mold
By using the linkage mechanism between the transmission rod and the locking pin, as well as the design of the limit ring and the locking hook, the problem of the lack of uniform distribution constraint in the D-type interlocking plate prefabrication mold under the mold closing state is solved, and high-precision interlocking plate production is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANGTZE RIVER YICHANG WATERWAY ENG BUREAU
- Filing Date
- 2025-05-23
- Publication Date
- 2026-05-26
AI Technical Summary
The existing D-type interlocking plate prefabrication mold lacks uniform distribution constraints in the mold closing state, which makes the mold interface prone to misalignment and affects the stability of production quality.
The linkage mechanism of transmission rod and locking pin, combined with the design of limit ring and locking hook, achieves multi-point synchronous locking, ensuring that the upper and lower templates are subjected to uniform force when the mold is closed, and the fit is enhanced by the cooperation of the hook section and roller, and the fixing mechanism prevents loosening.
It improves the precision and consistency of interlocking plate forming, ensures the stability of the mold under high-frequency vibration load, simplifies the operation process, and improves production quality and mold service life.
Smart Images

Figure CN224275519U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of D-type interlocking plate production, and in particular to a D-type interlocking plate prefabrication mold. Background Technology
[0002] Type D interlocking blocks, also known as concrete interlocking blocks, are engineering components that interlock to form a flexible protective system. They are primarily used to resist erosion from water flow, waves, or external forces, enhancing the stability of riverbanks, riverbeds, and coastlines. Their honeycomb or hinged design disperses external forces across the entire structure, reducing the risk of localized damage, while allowing for moderate deformation to accommodate ground changes. Typical applications include river embankment protection, coastal wave-damping and beach protection, and reservoir spillway reinforcement. They effectively prevent soil erosion and, through the pores between the blocks, promote plant growth or biological habitats, achieving a synergistic effect of engineering protection and ecological restoration.
[0003] Existing technology includes a prefabrication mold for interlocking plates, such as Chinese Patent Application No. CN201922274907.8, which proposes a prefabrication mold for interlocking plates. The mold includes an upper mold and a lower mold. The upper and lower molds have the same length and width dimensions and can be aligned and locked vertically. The upper mold includes an upper mold body with a plurality of through holes evenly distributed on it. The lower mold includes a lower mold frame with a plurality of lower mold slots evenly distributed on it. The number of lower mold slots is the same as that of the upper mold holes, and their positions correspond to each other, so that when the upper and lower molds are aligned vertically, the lower mold slots and upper mold holes are aligned with each other. The bottom surface of the upper mold body is provided with a plurality of hooks, and the lower mold frame is provided with a locking device. The locking device and the hooks cooperate to lock the upper and lower molds. This invention improves the locking strength between the upper and lower molds by using hooks and locking devices, preventing the mud from overflowing under vibration of the vibrating table, and ensures the rigidity of the upper and lower molds by reinforcing ribs, thereby improving the yield rate of interlocking plate manufacturing.
[0004] However, the existing technology has the following problems: The existing locking device, through the cooperation of the hook and the frame locking device, concentrates its constraint force mainly in the outer edge area of the mold platform. While this edge-concentrated locking method can ensure the connection stability of the foundation, it cannot form a uniformly distributed constraint system at the contact interface of the upper and lower molds during mold closing. Especially when the mold platform bears high-frequency vibration loads, the lack of uniform distributed constraint in the contact area easily leads to misalignment, resulting in a cumulative effect of structural displacement. This may ultimately cause localized deterioration of the airtightness of the mold interface and increased dimensional tolerance dispersion of preforms due to micro-deformation of the mold, objectively limiting the stability of mass production process quality.
[0005] Therefore, a D-type interlocking plate prefabrication mold is needed, which can evenly lock the upper and lower molds to ensure production quality. Utility Model Content
[0006] To address the problem of uneven locking in existing D-type interlocking plate prefabrication molds, this utility model proposes a D-type interlocking plate prefabrication mold, the technical solution of which is as follows.
[0007] A prefabricated mold for a D-type interlocking piece includes an upper template and a lower template. The upper template array has a plurality of mold holes, and the lower template has a plurality of mold grooves corresponding to the mold holes.
[0008] The upper and lower templates are provided with a number of locking ears on their outer periphery. After the upper and lower templates are closed, the outer edges of the upper and lower templates can be initially locked by fixing the locking ears.
[0009] The upper and lower templates are provided with locking mechanisms. The locking mechanism includes a transmission rod provided on the lower template, the transmission rod being parallel to the lower template, and a locking pin installed on the lower template through a limiting mechanism. The locking pin and the transmission rod are movably connected through a connector. When the transmission rod is manually rotated around its own axis by a tool, the transmission rod drives the locking pin to translate through the connector. The upper template is provided with a locking hook that cooperates with the locking pin.
[0010] The lower template is equipped with a fixing mechanism on its outer periphery, which can lock the transmission rod and prevent it from rotating.
[0011] Furthermore, the upper and lower templates are rectangular plates, and a rectangular frame is provided around the outer periphery of the upper and lower templates. The locking ears are metal plates extending from the upper template to the lower template or from the lower template to the upper template, and fixing holes are provided on the locking ears. The locking ears of the upper and lower templates are staggered, and corresponding threaded holes are provided around the outer periphery of the upper and lower templates to match the fixing holes of the locking ears. The transmission rod passes through one side of the rectangular frame in parallel and is rotatably connected to the opposite side of the rectangular frame. The transmission rod is parallel to the non-installation side of the rectangular frame.
[0012] Furthermore, the transmission rod extends through one side of the rectangular frame and protrudes beyond the rectangular frame. A portion of the transmission rod protruding beyond the rectangular frame is provided with teeth. The teeth are tooth-shaped protrusions that protrude evenly from the outer periphery of the transmission rod with the axis of the transmission rod as the axis. The fixing mechanism is a movable block that is rotatably disposed on the outer periphery of the rectangular frame. One end of the movable block is rotatably embedded in the rectangular frame. Rotating the movable block can cause it to lock the teeth, preventing the transmission rod from rotating. The movable block is provided with a fixing hole, in which a fixing pin can be installed to fix the movable block.
[0013] Furthermore, the end of the transmission rod that protrudes beyond the outer periphery of the transmission rod has a hexagonal head.
[0014] Furthermore, the connector is composed of two metal plates. One end of the metal plate is fixed to the transmission rod perpendicular to the axis of the transmission rod, and the other end of the metal plate is provided with a waist hole. The locking pin is provided with columnar protrusions on both sides. The columnar protrusions on both sides are movably locked in the waist holes of the two metal plates respectively. The waist holes allow the locking pin to adapt to the rotational movement of the transmission rod when it is translated.
[0015] Furthermore, the limiting mechanism consists of several limiting rings disposed on the lower template, the axis of the limiting rings being parallel to the lower template, and the several limiting rings being coaxial with the locking pin.
[0016] Furthermore, the locking hook consists of two mounting ears perpendicular to the upper template, and a roller with an axis parallel to the upper template and perpendicular to the locking pin is provided between the mounting ears.
[0017] Furthermore, one end of the locking pin is bent upward and extends parallel to the lower template to form a barb section. The barb section is provided with an inclined surface facing the lower template. When the locking pin is translated, the barb section enters the locking hook. The inclined surface presses the roller during translation, causing the upper template to be pressed downward.
[0018] This invention offers the following advantages: Through the linkage mechanism of the transmission rod and locking pin, combined with the guiding effect of the waist hole connector and the limiting ring, multi-point synchronous locking is achieved, ensuring uniform force distribution on the upper and lower mold plates during mold closing. The design of the inclined surface of the hook section and the locking hook roller generates a vertically downward pressing force during the translational locking process, further enhancing the fit between the mold plates. The fixing mechanism locks the transmission rod through the engagement of the teeth and the movable block, preventing accidental loosening and ensuring the stability of the locked state. Furthermore, the rectangular frame and the initial outer edge locking of the locking ear provide double protection, and the hexagonal head design simplifies the manual operation process. The overall structure balances ease of operation, locking reliability, and mold lifespan improvement, significantly enhancing the precision and consistency of the interlocking plate forming. Attached Figure Description
[0019] Appendix Figure 1 This is a schematic diagram of the overall structure of the lower mold of this utility model;
[0020] Appendix Figure 2 This is a schematic diagram of the overall structure of the upper mold of this utility model;
[0021] Appendix Figure 3 This is a first schematic diagram of the fixing mechanism of this utility model;
[0022] Appendix Figure 4 This is a schematic diagram of the locking mechanism of this utility model;
[0023] Appendix Figure 5 This is a second schematic diagram of the fixing mechanism of this utility model.
[0024] In the above attached figures: upper template 1, lower template 2, mold hole 3, mold groove 4, locking ear 5, transmission rod 6, locking pin 7, connecting piece 8, limit ring 9, mounting ear 10, roller 11, movable block 12, fixing pin 13, toothed part 14, hexagonal head 15, columnar protrusion 16, barbed section 17, inclined surface 18, waist hole 19. Detailed Implementation
[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, a prefabricated mold for a D-type interlocking plate includes an upper mold plate 1 and a lower mold plate 2. The upper mold plate 1 has an array of mold holes 3, and the lower mold plate 2 has a number of mold grooves 4 corresponding to the mold holes 3. The corresponding design of the arrayed mold holes 3 and mold grooves 4 ensures the shape consistency and positioning accuracy of the prefabricated interlocking plate, avoids misalignment during mold closing, and improves molding quality. The upper mold plate 1 and the lower mold plate 2 are provided with a number of locking ears 5 on their outer periphery. After the upper mold plate 1 and the lower mold plate 2 are closed, the outer edges of the upper mold plate 1 and the lower mold plate 2 can be initially locked by fixing the locking ears 5. The initial fixing of the outer edges of the upper and lower mold plates 2 after mold closing by the locking ears 5 simplifies the operation process of the subsequent locking mechanism and prevents accidental separation of the mold plates during the locking process. The upper mold plate 1 and the lower mold plate 2 are equipped with a locking mechanism. The locking mechanism includes a transmission rod 6 disposed on the lower mold plate 2, the transmission rod 6 being parallel to the lower mold plate 2, and a locking pin 7 installed on the lower mold plate 2 via a limiting mechanism. The locking pin 7 and the transmission rod 6 are movably connected via a connecting piece 8. When the transmission rod 6 is manually rotated around its own axis using a tool, the transmission rod 6 drives the locking pin 7 to translate via the connecting piece 8. The upper mold plate 1 is equipped with a locking hook that cooperates with the locking pin 7. The linkage design of the transmission rod 6 and the locking pin 7, by manually rotating the transmission rod 6 to drive the locking pin 7 to translate, achieves secondary locking of the mold plate, enhances the locking force, and prevents the mold from loosening due to vibration or pressure during the casting process. The lower mold plate 2 is equipped with a fixing mechanism on its outer periphery, which can lock the transmission rod 6 to prevent it from rotating.
[0027] like Figure 1 , Figure 2As shown, preferably, the upper template 1 and lower template 2 are rectangular plates, and a rectangular frame is provided around the outer periphery of the upper template 1 and lower template 2. The locking lug 5 is a metal plate extending from the upper template 1 to the lower template 2, or from the lower template 2 to the upper template 1, and a fixing hole is provided on the locking lug 5. The locking lugs 5 of the upper template 1 and lower template 2 are staggered, and corresponding threaded holes are provided around the outer periphery of the upper template 1 and lower template 2 to match the fixing holes of the locking lug 5. The transmission rod 6 passes parallel through one side of the rectangular frame and is rotatably connected to the opposite side of the rectangular frame, and the transmission rod 6 is parallel to the non-installation side of the rectangular frame. The rectangular frame provides structural rigidity, and the design of the transmission rod 6 passing parallel through the frame simplifies the transmission path, ensures the stability of the transmission rod 6 when rotating, and reduces the risk of off-center load.
[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, preferably, the transmission rod 6 protrudes from one side of the rectangular frame. A portion of the transmission rod 6 protruding from the rectangular frame is provided with teeth 14. These teeth 14 are tooth-like protrusions uniformly projecting from the outer periphery of the transmission rod 6 with the axis of the transmission rod 6 as the axis. The fixing mechanism is a movable block 12 rotatably disposed on the outer periphery of the rectangular frame. One end of the movable block 12 is rotatably embedded in the rectangular frame. Rotating the movable block 12 can cause it to engage the teeth 14, preventing the transmission rod 6 from rotating. The movable block 12 is provided with fixing holes, into which fixing pins 13 can be installed to fix the movable block 12. The engagement of the tooth-like protrusions with the movable block 12 forms multi-point positioning, combined with the locking of the fixing pins 13, achieving reliable fixing of the transmission rod 6 and preventing loosening due to external forces.
[0029] like Figure 3 , Figure 5 As shown, preferably, the end of the transmission rod 6 that protrudes from the outer periphery of the transmission rod 6 is a hexagonal head 15. The hexagonal head 15 is designed to facilitate the use of standard tools, that is, a lever with a groove matching the hexagonal head 15 at one end, so as to quickly rotate the transmission rod 6, improve the convenience of operation, and reduce the difficulty of manual operation.
[0030] like Figure 1 , Figure 2 , Figure 4As shown in the preferred embodiment, the connecting member 8 consists of two metal plates. One end of each metal plate is fixed to the transmission rod 6 perpendicular to its axis, and the other end of each metal plate has a slotted hole 19. The locking pin 7 has columnar protrusions 16 on both sides, which are movably engaged in the slotted holes 19 of the two metal plates. The slotted holes 19 allow the locking pin 7 to adapt to the rotational movement of the transmission rod 6 during translation. The slotted holes 19 also allow the locking pin 7 to move linearly along the transmission rod 6 during rotation, avoiding motion interference. Simultaneously, the sliding fit between the columnar protrusions 16 and the slotted holes 19 ensures the accuracy and reliability of the transmission.
[0031] like Figure 1 , Figure 2 , Figure 4 As shown, preferably, the limiting mechanism consists of several limiting rings 9 disposed on the lower template 2. The axes of the limiting rings 9 are parallel to the lower template 2, and the limiting rings 9 are coaxial with the locking pin 7. The limiting rings 9 constrain the movement trajectory of the locking pin 7, ensuring that it moves linearly along the axis, avoiding deviation or jamming, and improving the smoothness of the locking process.
[0032] like Figure 1 , Figure 2 , Figure 4 As shown, preferably, the locking hook consists of two mounting ears 10 perpendicular to the upper template 1. A roller 11 with its axis parallel to the upper template 1 and perpendicular to the locking pin 7 is provided between the mounting ears 10. One end of the locking pin 7 is bent upward and extends parallel to the lower template 2 to form a barb section 17. The barb section 17 is provided with an inclined surface 18 facing the lower template 2. When the locking pin 7 moves horizontally, the barb section 17 enters the locking hook. The inclined surface 18 presses against the roller 11 during the horizontal movement, causing the upper template 1 to press downward. The roller 11 reduces the frictional resistance between the locking pin 7 and the locking hook. The inclined surface 18 is designed to apply downward pressure to the roller 11 during the horizontal movement of the locking pin 7, forcing the upper template 1 to press against the lower template 2, thus enhancing the locking effect.
[0033] Preferably, two transmission rods 6 can be set on the lower template 2, each transmission rod 6 is linked with two locking pins 7 at the same time, and each transmission rod 6 is provided with a matching fixing mechanism. In addition, four corresponding locking hooks are provided on the upper template 1.
[0034] The usage method and principle of this utility model are as follows: The mold adopts a two-stage locking mechanism to ensure reliable fixation of the template. First, the outer edge is fixed by locking ear 5 after mold closing to complete the initial positioning. Then, the transmission rod 6 is manually rotated to drive the locking pin 7 to move horizontally. The interaction between the hook section 17, the inclined surface 18 and the roller 11 forces the upper template 1 to press down and lock. At the same time, the movable block 12 and the tooth 14 lock the transmission rod 6 to prevent it from retracting. The linkage structure of transmission rod 6-locking pin 7 converts rotation into linear motion to achieve mechanical force amplification. The inclined surface 18-roller 11 design amplifies the locking force. The tooth 14 and the movable block 12 provide multi-point anti-loosening protection. When using, the mold hole 3 groove needs to be aligned first, and then the locking ear 5 is initially fixed. Then, the hexagonal head 15 of the transmission rod 6 is rotated with a tool to make the locking pin 7 enter the locking hook to complete the pressing. Finally, the movable block 12 is rotated to lock the tooth 14 and insert the fixing pin 13 to prevent rotation. When demolding, the reverse operation is used to release the lock. It has the characteristics of simple operation, strong locking force and reliable anti-loosening. It is suitable for mass production of high-precision interlocking plates.
[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A prefabrication mold for D-type interlocking plates, characterized in that: It includes an upper template (1) and a lower template (2). The upper template (1) is arrayed with a plurality of mold holes (3), and the lower template (2) is provided with a plurality of mold grooves (4) corresponding to the mold holes (3). The upper template (1) and the lower template (2) are provided with a number of locking ears (5) on their outer periphery. After the upper template (1) and the lower template (2) are closed, the outer edges of the upper template (1) and the lower template (2) can be initially locked by fixing the locking ears (5). The upper template (1) and the lower template (2) are provided with locking mechanisms. The locking mechanism includes a transmission rod (6) provided on the lower template (2), the transmission rod (6) being parallel to the lower template (2), and a locking pin (7) installed on the lower template (2) through a limiting mechanism. The locking pin (7) and the transmission rod (6) are movably connected through a connector (8). When the transmission rod (6) is manually rotated around its own axis by a tool, the transmission rod (6) drives the locking pin (7) to translate through the connector (8). The upper template (1) is provided with a locking hook that cooperates with the locking pin (7). The lower template (2) is provided with a fixing mechanism on its outer periphery, which can lock the transmission rod (6) so that it cannot rotate.
2. The D-type interlocking plate prefabrication mold according to claim 1, characterized in that: The upper template (1) and lower template (2) are rectangular plates, and a rectangular frame is provided around the outer periphery of the upper template (1) and lower template (2). The locking ear (5) is a metal plate extending from the upper template (1) to the lower template (2) or from the lower template (2) to the upper template (1). The locking ear (5) is provided with a fixing hole. The locking ears (5) of the upper template (1) and lower template (2) are staggered. The outer periphery of the upper template (1) and lower template (2) is provided with corresponding threaded holes to match the fixing holes of the locking ear (5). The transmission rod (6) passes through one side of the rectangular frame in parallel and is rotatably connected to the opposite side of the rectangular frame. The transmission rod (6) is parallel to the non-installation side of the rectangular frame.
3. The D-type interlocking piece prefabrication mold according to claim 2, characterized in that: The transmission rod (6) extends through one side of the rectangular frame and protrudes from the rectangular frame. A portion of the transmission rod (6) protruding from the rectangular frame is provided with teeth (14). The teeth (14) are tooth-shaped protrusions that protrude uniformly from the outer periphery of the transmission rod (6) with the axis of the transmission rod (6) as the axis. The fixing mechanism is a movable block (12) that is rotatably disposed on the outer periphery of the rectangular frame. One end of the movable block (12) is rotatably embedded in the rectangular frame. Rotating the movable block (12) can cause it to lock the teeth (14), preventing the transmission rod (6) from rotating. The movable block (12) is provided with a fixing hole, in which a fixing pin (13) can be installed to fix the movable block (12).
4. The D-type interlocking plate prefabrication mold according to claim 3, characterized in that: The end of the transmission rod (6) that protrudes from the outer periphery of the transmission rod (6) is a hexagonal head (15).
5. The D-type interlocking plate prefabrication mold according to claim 1, characterized in that: The connector (8) is composed of two metal plates. One end of the metal plate is fixed to the transmission rod (6) perpendicular to the axis of the transmission rod, and the other end of the metal plate is provided with a waist hole (19). The locking pin (7) is provided with columnar protrusions (16) on both sides. The columnar protrusions (16) on both sides are movably locked in the waist holes (19) of the two metal plates respectively. The waist holes (19) allow the locking pin (7) to adapt to the rotational movement of the transmission rod (6) when it is translated.
6. The D-type interlocking piece prefabrication mold according to claim 5, characterized in that: The limiting mechanism consists of several limiting rings (9) set on the lower template (2). The axis of the limiting rings (9) is parallel to the lower template (2), and the several limiting rings (9) are coaxial with the locking pin (7).
7. The D-type interlocking plate prefabrication mold according to claim 1, characterized in that: The locking hook consists of two mounting ears (10) perpendicular to the upper template (1), and a roller (11) with an axis parallel to the upper template (1) and perpendicular to the locking pin (7) is provided between the mounting ears (10).
8. The D-type interlocking plate prefabrication mold according to claim 7, characterized in that: The locking pin (7) is bent upward at one end and extends parallel to the lower template (2) to form a barb section (17). The barb section (17) is provided with an inclined surface (18) facing the lower template (2). When the locking pin (7) moves, the barb section (17) enters the locking hook. When the inclined surface (18) moves, it presses the roller (11) to make the upper template (1) press downward.