A reusable high-precision concrete pole steel form splicing device

Abstract

The application discloses a reusable high-precision concrete electric pole steel mold splicing device and relates to the technical field. The splicing device comprises an upper mold shell and a lower mold shell, the upper mold shell and the lower mold shell are oppositely connected and adapted to each other, and a positioning unit is further arranged. The positioning unit comprises hollow round rods, two ends of the lower mold shell are symmetrically provided with passive round plates, a plurality of through holes are uniformly formed on the circumferential direction of each passive round plate, a hollow round rod is arranged in each through hole through sliding sealing, each hollow round rod is connected through a connecting plate, and the connecting plate and the corresponding passive round plate are connected through a first elastic element. The first elastic element and the connecting plate drive the hollow round rods to be oppositely connected and abut against the steel end of the steel reinforcement cage, the hollow round rods are used for synchronously positioning the steel reinforcement cage, and the production efficiency of the electric pole is improved.

Description

Technical Field

[0001] This invention relates to the field of shaking table mineral processing technology, specifically to a reusable high-precision concrete pole steel mold splicing device. Background Technology

[0002] As is widely known, pole molds are used to produce cement utility poles. Before use, the steel molds need to be cleaned. A pole mold consists of an upper mold shell and a lower mold shell. Skirt plates are fixedly connected to both sides of both the upper and lower mold shells. After the upper and lower mold shells are closed, the skirt plates fit snugly together. Each unit mold has clamping plates on both sides to secure the upper and lower skirt plates, ensuring the produced poles are dimensionally accurate and structurally robust. During pole production, a reinforcing cage and concrete are filled into the steel mold, and then centrifugal rollers drive the mold to rotate, thus completing the pole production process.

[0003] For example, the patent entitled "A Centrifugal Molding Concrete Pole Steel Mold" published on December 11, 2020, with announcement number CN212123691U, discloses a centrifugal molding concrete pole steel mold, including an upper mold shell and a lower mold shell for assembling and joining the mold. The upper mold shell and the lower mold shell are assembled to form a mold cavity for pouring concrete poles. The front ends of the upper mold shell and the lower mold shell are respectively fixedly connected to front half flange seats. The two front half flange seats are assembled and fixedly connected to the front mold base. The rear ends of the upper mold shell and the lower mold shell are respectively fixedly connected to rear half flange seats. The two rear half flange seats are assembled and fixedly connected to the rear mold base. The upper mold shell and the lower mold shell are also equipped with multiple prefabrication perforation mechanisms for making prefabricated holes. The patented structure is reasonably designed, which can form pre-made holes on the outer wall of the formed pole, making it convenient to operate the reserved holes; the entire steel mold has higher structural strength, is not easy to deform, and has a longer service life; the cooperation of the positioning strip and the positioning groove can play a good role in mold closing and positioning, avoiding deviations in the mold closing position.

[0004] The shortcomings of existing technology lie in the fact that, during the production of utility poles, the reinforcing cage needs to be placed inside the lower mold shell of the concrete pole formwork. Then, a wrench is used to tighten all the bolts, positioning the reinforcing cage within the lower mold shell. After the reinforcing cage is positioned, concrete is filled into the lower mold shell and the reinforcing cage until they are completely filled. Then, an upper mold shell is placed on top of the lower mold shell to seal it, thus sealing the reinforcing cage and concrete. Finally, the upper and lower mold shells are closed. The concrete is hoisted onto centrifugal rollers, where it naturally solidifies as the upper and lower molds rotate. Excess water is then drained from the molds and the concrete (the formed pole). The concrete is then demolded, and the concrete, upper and lower molds are removed, thus completing the production of the concrete pole. However, positioning the reinforcing cage requires workers to precisely align each bolt with the cage. This method makes positioning the reinforcing cage overly complex, impacting the pole's production efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a reusable, high-precision concrete pole steel formwork splicing device to solve the technical problems in related technologies.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a reusable high-precision concrete pole steel formwork splicing device, comprising an upper formwork shell and a lower formwork shell, wherein the upper formwork shell and the lower formwork shell are mutually mated and adapted together, characterized in that it further comprises a positioning unit, wherein the positioning unit comprises a hollow round rod, and passive round plates are symmetrically installed at both ends of the lower formwork shell, wherein multiple through holes are uniformly opened along the circumferential direction on both passive round plates, and a hollow round rod is installed in each of the through holes by means of sliding sealing, wherein the hollow round rods are connected to each other by a connecting plate, and the connecting plate and the corresponding passive round plate are connected by a first elastic element.

[0007] As mentioned above, both the upper and lower mold shells have symmetrically arranged mating plates on their sides.

[0008] As mentioned above, each of the perforations has a partition block symmetrically arranged along its circumferential direction at one end near the interior of the lower mold shell.

[0009] As described above, each of the partitions is connected to its corresponding inner wall via a second elastic element, and the partitions within the same perforation press against each other to seal the perforation.

[0010] As mentioned above, each of the hollow round rods has an annular inclined surface on the outer wall of the end closest to the interior of the lower mold shell.

[0011] As mentioned above, the ends of each of the partitions that abut against each other are driven inclined surfaces, and the annular inclined surface on the hollow round rod and the driven inclined surface on the partition plate in the corresponding through hole are wedge-shapedly fitted together.

[0012] As mentioned above, the diameter of the internal opening of each of the hollow round rods gradually decreases from the end closer to the inside of the lower mold shell to the end farther away from the inside of the lower mold shell.

[0013] The openings inside each of the aforementioned hollow round rods and the reinforcing cages are mutually adapted to each other.

[0014] As described above, each of the two passive circular plates has a limiting groove at its top, and a limiting plate is symmetrically installed on both sides of the upper mold shell. The two limiting plates and their corresponding limiting grooves are slidably arranged with each other.

[0015] As described above, the sidewalls of the two limiting grooves are all adjusting inclined surfaces, and the ends of the two limiting plates are set as centering inclined surfaces. The centering inclined surfaces on the two limiting plates are respectively wedge-shapedly engaged with the adjusting inclined surfaces in their corresponding limiting grooves.

[0016] The beneficial effects of this invention are as follows: During the production of concrete utility poles, workers use a crane to hoist the reinforcing cage into the lower formwork. During this process, workers use tools (such as jacks, crowbars, etc.) to pull the connecting plate, causing the connecting plate to stretch the first elastic element (the first elastic element is a component capable of telescoping and resetting, preferably a spring). The connecting plate drives the hollow round rods to slide into the perforation, making way for the hoisting of the reinforcing cage. After the reinforcing cage is hoisted into the lower formwork, workers release the tension on the connecting plate. Under the rebound action of the first elastic element, the first elastic element drives each hollow round rod to slide into the lower formwork through the connecting plate, so that each hollow round rod and the end of the reinforcing bar on the reinforcing cage are connected and pressed together. This allows each hollow round rod to synchronously position the reinforcing cage, eliminating the need to tighten individual bolts for positioning. The synchronous movement of the hollow round rods greatly improves the positioning efficiency of the reinforcing cage, thereby increasing the production efficiency of the utility poles. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a partial three-dimensional structural schematic diagram of an embodiment of the present invention;

[0019] Figure 2 For the present invention Figure 1 A schematic diagram of a partial cross-sectional structure;

[0020] Figure 3 A partial cross-sectional structural schematic diagram from a first perspective of another embodiment of the present invention;

[0021] Figure 4 For the present invention Figure 3 A partial enlarged cross-sectional structural diagram at point M;

[0022] Figure 5 This is a partial cross-sectional structural diagram of the location of the spacer and the second elastic member of the present invention;

[0023] Figure 6 A partial cross-sectional structural schematic diagram from a second perspective of another embodiment of the present invention;

[0024] Figure 7 For the present invention Figure 6 A schematic diagram of the enlarged cross-sectional structure at point N;

[0025] Figure 8 This is a partial cross-sectional structural schematic diagram of another embodiment of the present invention;

[0026] Figure 9 A partial cross-sectional structural schematic diagram of another embodiment of the present invention is provided;

[0027] Figure 10 For the present invention Figure 9 A magnified cross-sectional view of point P.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Upper mold shell; 2. Lower mold shell; 3. Hollow round rod; 4. Passive round plate; 5. Through hole; 6. Connecting plate; 7. First elastic element; 8. Butt plate; 9. Spacer; 10. Second elastic element; 11. Annular inclined plane; 12. Driven inclined plane; 13. U-shaped frame; 14. Slide groove; 15. Sliding plate; 16. Isosceles trapezoidal plate; 17. Isosceles trapezoidal block; 18. Counterweight; 19. Protrusion; 20. Locking inclined plane; 21. U-shaped plate; 22. Sealing inclined plane; 23. Concave hole; 24. Through hole; 25. Limiting rod 26. Straight plate; 27. Square hole; 28. Through groove; 29. ​​Straight rod; 30. Long strip plate; 31. Locking threaded rod; 32. Limiting groove; 33. Limiting plate; 34. Adjusting slope; 35. Centering slope; 36. Square groove; 37. Block; 38. Arc groove; 39. Arc rod; 40. Arc notch; 41. Clamping slope; 42. Limiting hole; 43. Auxiliary groove; 44. Auxiliary rod; 45. Third elastic element; 46. Auxiliary slope; 47. Active plate; 48. Fourth elastic element; 49. Active slope. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solution of the present invention, the following will be described in conjunction with the accompanying drawings. Figure 1 To be continued Figure 10 The present invention will now be described in further detail.

[0031] One embodiment of the present invention relates to a reusable high-precision concrete pole steel formwork splicing device, comprising an upper formwork shell 1 and a lower formwork shell 2, wherein the upper formwork shell 1 and the lower formwork shell 2 are mutually mated and adapted to each other, and further comprising a positioning unit, wherein the positioning unit comprises a hollow round rod 3, and passive round plates 4 are symmetrically installed at both ends of the lower formwork shell 2, wherein multiple through holes 5 are uniformly opened along the circumferential direction on both passive round plates 4, and a hollow round rod 3 is installed in each through hole 5 by means of sliding sealing, wherein the hollow round rods 3 are connected to each other by a connecting plate 6, and the connecting plate 6 and the corresponding passive round plate 4 are connected by a first elastic element 7.

[0032] Specifically, the concrete pole steel mold is a mold used to produce concrete poles. The lower mold shell 2 and the upper mold shell 1 are two semi-circular arc plate structures. The upper mold shell 1 and the lower mold shell 2 are fitted together to form a circular hollow columnar mold. A passive circular plate 4 is installed at each end of the lower mold shell 2. Multiple through holes 5 are evenly opened along the circumference of the passive circular plate 4. A hollow circular rod 3 is slidably installed in each through hole 5. The hollow circular rod 3 has a hollow structure in the middle. The hollow circular rods 3 in each through hole 5 on the same passive circular plate 4 are connected by a connecting plate 6. The center of the connecting plate 6 and the center of the passive circular plate 4 are connected by a first elastic element 7, which is a component capable of telescoping and resetting. Preferably, a spring is used. The upper mold shell 1 and lower mold shell 2 are symmetrically provided with mating plates 8 on their sides. Each of the perforations 5 has a partition block 9 symmetrically provided along its circumferential direction at one end near the interior of the lower mold shell 2. Each partition block 9 is connected to its corresponding inner wall via a second elastic element 10, which is a component capable of extension and retraction, preferably a spring. The partition blocks 9 within the same perforation 5 abut against each other to seal the perforation 5. Each hollow round rod 3 has an annular inclined surface 11 on its outer wall at one end near the interior of the lower mold shell 2. The abutting ends of each partition block 9 are driven inclined surfaces 12. The annular inclined surface 11 on the hollow round rod 3 and the partition plate in its corresponding perforation 5... The driven inclined planes 12 on the upper part are wedge-shaped and fitted together. The diameter of the internal opening of each hollow round rod 3 gradually decreases from the end closer to the inside of the lower mold shell 2 to the end farther away from the inside of the lower mold shell 2. The internal opening of each hollow round rod 3 is adapted to the reinforcing cage. When producing concrete poles, workers use a crane to hoist the reinforcing cage into the lower mold shell 2. During the hoisting process, workers use tools (such as jacks, crowbars, etc.) to pull the connecting plate 6, so that the connecting plate 6 stretches the first elastic element 7 (the first elastic element 7 is an original element that can extend and return to its original position, preferably a spring). The first elastic element 7 is in its original length state (that is, the first elastic element 7 is not subjected to...). When an external force is applied, the first elastic element 7 pushes the hollow round rod 3 into the lower mold shell 2 through the connecting plate 6. The connecting plate 6 drives the hollow round rod 3 to slide into the through hole 5, so that the outer wall of the hollow round rod 3 and the end of the partition block 9 abut against each other, making way for the hoisting of the steel cage. After the steel cage is hoisted into the lower mold shell 2, the workers release the tension on the connecting plate 6. Under the rebound action of the first elastic element 7, the first elastic element 7 drives each hollow round rod 3 to slide into the lower mold shell 2 through the connecting plate 6, so that each hollow round rod 3 and the end of the steel bar on the steel cage abut against each other. Since the diameter of the opening inside each hollow round rod 3 gradually decreases from the end closer to the inside of the lower mold shell 2 to the end farther away from the inside of the lower mold shell 2 (e.g., Figure 4 , Figure 6 and Figure 7As shown), the opening of the hollow round rod 3 is an inverted conical structure, which facilitates the mutual abutment and fit between the hollow round rod 3 and the reinforcing bars on the reinforcing cage. The hollow round rod 3 is fitted onto the outer wall of the reinforcing bars on the reinforcing cage. Generally, the vertical reinforcing bars of the reinforcing cage are set as twelve bars welded together. In this embodiment, the number of through holes 5 and hollow round rods 3 is preferably twelve, allowing the hollow round rods 3 and the reinforcing cage to be mutually adapted and positioned. This enables each hollow round rod 3 to perform synchronous positioning of the reinforcing cage, eliminating the need to tighten individual bolts for positioning. The synchronous movement of the hollow round rods 3 positions the reinforcing cage, significantly improving the positioning efficiency of the reinforcing cage and thus increasing the production efficiency of the utility pole. Then... Concrete is filled into the lower formwork shell 2 and the reinforcing cage until they are completely filled. Then, the upper formwork shell 1 is placed on top of the lower formwork shell 2, sealing the reinforcing cage and concrete. The upper formwork shell 1 and the lower formwork shell 2 are then hoisted onto centrifugal rollers. As the upper formwork shell 1 and the lower formwork shell 2 rotate, the concrete inside them naturally solidifies. Finally, excess water is poured out from the upper formwork shell 1, the lower formwork shell 2, and the concrete (i.e., the formed utility pole). The concrete, the upper formwork shell 1, and the lower formwork shell 2 are then demolded to complete the production of the concrete utility pole. This allows the upper formwork shell 1 and the lower formwork shell 2 to be reused.

[0033] The shortcomings of existing technology are that, during the production of utility poles, the reinforcing cage needs to be placed inside the lower mold shell 2 of the concrete pole steel formwork. Then, a wrench is used to tighten all the bolts, positioning the reinforcing cage within the lower mold shell 2. After the reinforcing cage is positioned, concrete is filled into the lower mold shell 2 and the reinforcing cage until they are completely filled. Then, the upper mold shell 1 is placed on top of the lower mold shell 2 to seal it, thus sealing the reinforcing cage and concrete. Finally, the upper and lower mold shells are closed. 2. The concrete is hoisted onto the centrifugal rollers. As the upper mold shell 1 and lower mold shell 2 rotate continuously, the concrete inside the upper mold shell 1 and lower mold shell 2 solidifies naturally. Finally, the excess water in the upper mold shell 1, lower mold shell 2, and concrete (i.e., the formed utility pole) is poured out. Then, the concrete, upper mold shell 1, and lower mold shell 2 are demolded to complete the production of the concrete utility pole. However, when positioning the reinforcing cage, workers need to align each bolt with the reinforcing cage. This positioning method makes the positioning of the reinforcing cage too complicated, thus affecting the production efficiency of the utility pole.

[0034] The beneficial effects of this embodiment are as follows: During the production of concrete poles, workers use a crane to hoist the reinforcing cage into the lower formwork shell 2. During the hoisting process, workers use tools (such as jacks, crowbars, etc.) to pull the connecting plate 6, causing the connecting plate 6 to stretch the first elastic element 7 (the first elastic element 7 is a component capable of telescoping and resetting, preferably a spring). The connecting plate 6 drives the hollow round rod 3 to slide into the through hole 5, making way for the hoisting of the reinforcing cage. After the reinforcing cage is hoisted into the lower formwork shell 2... When the workers release the tension on the connecting plate 6, the first elastic element 7 rebounds and drives each hollow round rod 3 to slide into the lower mold shell 2 through the connecting plate 6. This causes each hollow round rod 3 to connect and abut against the ends of the reinforcing bars on the reinforcing cage, allowing each hollow round rod 3 to perform synchronous positioning of the reinforcing cage. This eliminates the need to tighten the bolts to position the reinforcing cage. The synchronous movement of the hollow round rods 3 significantly improves the positioning efficiency of the reinforcing cage, thereby increasing the production efficiency of the utility poles.

[0035] In another embodiment of the present invention, a U-shaped frame 13 is installed on the outer wall of the passive circular plate 4. A sliding groove 14 is provided on the U-shaped frame 13. A sliding plate 15 is slidably installed in the sliding groove 14. An isosceles trapezoidal plate 16 is installed on the sliding plate 15. An isosceles trapezoidal block 17 is installed on the connecting plate 6. A counterweight block 18 is installed on the outer wall of the isosceles trapezoidal plate 16. The inclined surfaces between the isosceles trapezoidal plate 16 and the isosceles trapezoidal block 17 are wedge-shaped and fitted together. Multiple protrusions 19 are evenly provided on the contact surfaces of the isosceles trapezoidal plate 16 and the isosceles trapezoidal block 17. The protrusions 19 on the isosceles trapezoidal plate 16 and the protrusions 19 on the isosceles trapezoidal block 17 are staggered and are made of rubber material to give them a certain deformation capability.

[0036] Specifically, the limiting force generated each time the rebar cage is positioned is provided by the elastic force provided by the first elastic element 7. However, the elastic force provided by the first elastic element 7 is unstable. Furthermore, due to the large weight of the rebar cage, and the vibration of the rebar cage during concrete filling into the rebar cage and lower formwork 2, the first elastic element 7 will experience reciprocating vibration, potentially causing the hollow rod 3 to detach from the rebar in the rebar cage. In this embodiment, when the first elastic element 7 is in its original length state, it drives the hollow rod 3 to be located inside the perforation 5 via the connecting plate 6, and the hollow rod 3 and the partition plate are separated. At this time, under the elastic force of the second elastic element 10, the second elastic element 10 pushes the partition block 9 to press against each other for sealing, allowing the partition block 9 to seal the perforation 5. When workers use hoisting equipment to lift the rebar cage, it is not necessary to use... The tool pulls the connecting plate 6. After the rebar cage is hoisted into the lower formwork shell 2, the worker uses a tool (such as a jack) to push the sliding plate 15 to slide in the slide groove 14, causing the sliding plate 15 to slide away from the counterweight block 18. The sliding plate 15 drives the isosceles trapezoidal plate 16 to slide in the slide groove 14. Because the isosceles trapezoidal plate 16 and the isosceles trapezoidal block 17 are wedge-shaped, the isosceles trapezoidal plate 16 pushes the isosceles trapezoidal block 17 to slide. Block 17 slides towards the end closer to the passive circular plate 4. The isosceles trapezoidal block 17 drives the connecting plate 6 to slide towards the end closer to the passive circular plate 4. The connecting plate 6 compresses the first elastic element 7, causing it to be in a compressed state. However, the isosceles trapezoidal plate 16 slides to an eccentric position on the isosceles trapezoidal block 17 (i.e., the center line of the isosceles trapezoidal plate 16 does not coincide with the axis of the passive circular plate 4). The isosceles trapezoidal plate 16 is in the groove 14 near the counterweight block 18 (e.g., ...). Figure 7As shown, the protrusions 19 on the isosceles trapezoidal plate 16 and isosceles trapezoidal block 17 are misaligned and abutted against each other. Simultaneously, the connecting plate 6 drives the hollow round rod 3 to slide into one end of the lower mold shell 2. During the sliding process of the hollow round rod 3 into one end of the lower mold shell 2, the annular inclined surface 11 on the outer wall of the hollow round rod 3 and the driven inclined surface 12 on the partition block 9 abut against each other. Due to the wedge-shaped fit between the driven inclined surface 12 and the annular inclined surface 11, the hollow round rod 3 pushes the partition block 9 to slide into one end of the through hole 5 through the annular inclined surface 11, so that the partition block 9 performs a compression operation on the second elastic element 10, so that the second elastic element 10 is in a compressed state until the hollow round rod 3 is sleeved on the outer wall of the steel reinforcement cage. This ensures stable positioning of the hollow round rod 3 relative to the reinforcing cage, preventing detachment even during vibrations. After the lower formwork 2 is filled with concrete and sealed by the upper formwork 1, workers use hoisting equipment to lift the upper formwork 1, lower formwork 2, and passive round plate 4 onto centrifugal rollers. The centrifugal rollers then rotate the passive round plate 4. During this rotation, the passive round plate 4 drives the U-shaped frame 13, which in turn drives the isosceles trapezoidal plate 16 and isosceles trapezoidal block 17. The isosceles trapezoidal plate 16 then drives the counterweight 18. Due to the eccentricity of the isosceles trapezoidal plate 16 sliding onto the isosceles trapezoidal block 17... The position of the counterweight 18 and the isosceles trapezoidal plate 16 generates centrifugal force on the passive circular plate 4. Due to the friction between the protrusions 19, the counterweight 18 and the isosceles trapezoidal plate 16 do not move when the passive circular plate 4 initially rotates. As the rotation speed of the passive circular plate 4 gradually increases, and the concrete in the upper mold shell 1 and the lower mold shell 2 gradually forms, the centrifugal force generated by the counterweight 18 and the isosceles trapezoidal plate 16 also increases with the increase in the rotation speed of the passive circular plate 4. This causes the counterweight 18 and the isosceles trapezoidal plate 16 to drive the sliding plate 15 to slide in the slide groove 14 until the isosceles trapezoidal plate 16 and the isosceles trapezoidal block 17 separate from each other. After the isosceles trapezoidal plate 16 and the isosceles trapezoidal block 17 separate from each other... Under the rebound action of the first elastic element 7, the first elastic element 7 drives the connecting plate 6 and the hollow round rod 3 to slide out from the lower mold shell 2 until the hollow round rod 3 and the partition block 9 separate from each other. Under the rebound action of the second elastic element 10, the second elastic element 10 pushes the partition block 9 to seal the perforation 5, so that the hollow round rod 3 and the perforation 5 will not affect the molding of the concrete pole. Until the concrete in the upper mold shell 1 and the lower mold shell 2 solidifies naturally, the concrete pole is solidified and formed. Then, the excess water in the upper mold shell 1, the lower mold shell 2 and the concrete (i.e. the formed pole) is poured out. Then, the concrete, the upper mold shell 1 and the lower mold shell 2 are demolded to realize the production of the concrete pole.

[0037] In another embodiment of the present invention, the surface of the mating plate 8 is configured as a locking slope 20. A U-shaped plate 21 is fitted onto the outer walls of the two mating plates 8 on the lower mold shell 2 and the upper mold shell 1. The two mating plates 8 on the lower mold shell 2 and the upper mold shell 1 are tightly connected by the U-shaped plate 21. A sealing slope 22 is provided on the inner wall of the U-shaped plate 21. The sealing slope 22 on the U-shaped plate 21 and the locking slope 20 on the mating plate 8 are wedge-shaped and fitted together. Multiple recesses 23 are uniformly formed along the linear direction on the mating plate 8. Multiple through holes 24 are uniformly formed along the linear direction on the U-shaped plate 21. Each through hole 24 and each recess 23 are correspondingly arranged. Each of the through holes 24 has a limiting rod 25 slidably installed inside it. The limiting rods 25 on the same side of the U-shaped plate 21 are connected by a straight plate 26. Each limiting rod 25 has a square hole 27. The U-shaped plate 21 has a plurality of through slots 28 evenly distributed. Each through slot 28 is interconnected with its corresponding through hole 24. Each through slot 28 has a straight rod 29 slidably installed inside it. Each straight rod 29 is interlocked with its corresponding square hole 27 and locked together. The straight rods 29 are connected by a long strip plate 30. The straight plate 26, the U-shaped plate 21 and the straight rod 29 in the middle are all provided with threaded grooves. Locking threaded rods 31 are threadedly installed in the threaded grooves.

[0038] Specifically, in existing technologies, when performing the docking and limiting operation of the upper mold shell 1 and the lower mold shell 2, multiple evenly arranged bolts are used to lock them on the sides of the upper mold shell 1 and the lower mold shell 2. Each time, the bolts must be tightened along the axial direction of the upper mold shell 1 and the lower mold shell 2 to lock them, making the docking and locking of the upper mold shell 1 and the lower mold shell 2 quite cumbersome. In this embodiment, after the positioning of the reinforcing cage and the filling of concrete are completed, the workers hoist the upper mold shell 1 onto the lower mold shell 2, and then the workers put the U-shaped plate 21 onto the docking plate of the upper mold shell 1 and the lower mold shell 2. 8. Due to the wedge-shaped fit between the locking inclined surface 20 on the mating plate 8 and the sealing inclined surface 22 on the U-shaped plate 21, during the process of fitting the U-shaped plate 21 onto the mating plate 8 of the upper mold shell 1 and the lower mold shell 2, the U-shaped plate 21, through the sealing inclined surface 22, presses the mating plate 8 of the upper mold shell 1 and the lower mold shell 2 together, making the mating between the upper mold shell 1 and the lower mold shell 2 more tightly, thus achieving a sealed connection between the upper mold shell 1 and the lower mold shell 2. After the U-shaped plate 21 has sealed the upper mold shell 1 and the lower mold shell 2 together through the mating plate 8, the through hole 24 on the U-shaped plate 21 moves to the mating plate. The workers insert each limiting rod 25 into its corresponding through hole 24 using the straight plate 26, so that each limiting rod 25 is directly inserted from the through hole 5 into its corresponding recess 23 on the mating plate 8. This allows the limiting rods 25 on the straight plate 26 to position the mating plate 8 and prevent the U-shaped plate 21 from sliding on the mating plate 8. Then, the workers insert each straight rod 29 into the through groove 28 using the long strip plate 30, so that the straight rod 29 positions the square hole 27 on the limiting rod 25 and prevents the limiting rod 25 from sliding. Finally, the workers insert the locking threaded rod 3. 1. The locking thread rod 31 is screwed into the threaded grooves on the straight plate 26, the U-shaped plate 21, and the straight rod 29 in the middle, so that the locking thread rod 31 can position the straight rod 29. In this embodiment, multiple locking operations are performed by the U-shaped plate 21, the docking plate 8, the limiting rod 25, the straight rod 29, and the locking thread rod 31. Only one locking thread rod 31 needs to be screwed in to achieve stable positioning of the U-shaped plate 21 and the docking plate 8. This simplifies the docking and sealing steps of the upper mold shell 1, the lower mold shell 2, and the docking plate 8, improves the efficiency of the sealing and docking of the upper mold shell 1 and the lower mold shell 2, and thus improves the production efficiency of concrete utility poles.

[0039] In another embodiment of the present invention, a limiting groove 32 is provided on the top of each of the two passive circular plates 4, and a limiting plate 33 is symmetrically installed on both sides of the upper mold shell 1. The two limiting plates 33 and their corresponding limiting grooves 32 are slidably arranged with each other. The side walls of the two limiting grooves 32 are all adjusting inclined surfaces 34, and the ends of the two limiting plates 33 are set as centering inclined surfaces 35. The centering inclined surfaces 35 on the two limiting plates 33 are respectively wedge-shapedly engaged with the adjusting inclined surfaces 34 in their corresponding limiting grooves 32. The two passive circular plates 4 are symmetrically opened with A square groove 36 is provided, and square blocks 37 are symmetrically installed on both U-shaped plates 21. The two square grooves 36 and the limiting groove 32 on the same passive circular plate 4 are connected by an arc groove 38. An arc rod 39 is slidably installed in the arc groove 38. Arc notches 40 are symmetrically opened on both sides of the limiting plate 33. A pressing inclined surface 41 is provided on the outer wall of the square block 37. The pressing inclined surface 41 and the arc rod 39 are wedge-shapedly fitted together. The arc rod 39 and the arc notch 40 on the corresponding limiting plate 33 are mutually adapted to each other.

[0040] Specifically, after the reinforcement cage is positioned and the concrete is filled, the workers hoist the upper formwork 1 onto the lower formwork 2. During the docking process between the upper formwork 1 and the lower formwork 2, the limiting plate 33 on the upper formwork 1 is slidably installed in the limiting groove 32 on the top of the passive circular plate 4. Since the side wall of the limiting groove 32 is an adjusting slope 34, and the end of the limiting plate 33 is set as a centering slope 35, the centering slope 35 on the limiting plate 33 and the adjusting slope 34 in the limiting groove 32 are wedge-shaped to each other, so that the centering slope 35 on the limiting plate 33 and the adjusting slope 34 in the limiting groove 32 are tightly installed against each other. The mutual adaptation setting allows the limiting plate 33 to install the upper mold shell 1 in the center position, so that the upper mold shell 1 and the lower mold shell 2 are in a mating position in the axial direction. There will be no deviation between the upper mold shell 1 and the lower mold shell 2 in the axial direction, eliminating the need for workers to use a hammer for correction. Then, the worker puts the U-shaped plate 21 onto the mating plate 8 of the upper mold shell 1 and the lower mold shell 2. During the process of the worker using tools to put the U-shaped plate 21 onto the mating plate 8 of the upper mold shell 1 and the lower mold shell 2, the square block 37 on the U-shaped plate 21 slides in the square groove 36, so that the square block 37 slides along the trajectory of the square groove 36, so that the U-shaped plate 21... The clamping and limiting of the mating plates 8 will not deviate in the axial direction of the upper mold shell 1 and the lower mold shell 2 until the U-shaped plate 21 seals the mating plates 8 on the upper mold shell 1 and the lower mold shell 2, thus achieving a tight and sealed connection between the upper mold shell 1 and the lower mold shell 2. During the process of the U-shaped plate 21 driving the block 37 to slide along the trajectory of the square groove 36, the clamping inclined surface 41 and the arc-shaped rod 39 on the block 37 are mutually clamped together, causing the block 37 to push the arc-shaped rod 39 along the trajectory of the arc-shaped groove 38 through the clamping inclined surface 41. After the U-shaped plate 21 completes the sealing and connection of the mating plates 8, the end of the arc-shaped rod 39 pushed by the block 37 slides to the limiting plate 33. The arc-shaped notch 40 on the upper part allows the arc-shaped rod 39 to position the limiting plate 33 through the arc-shaped notch 40. The arc-shaped rod 39 positions the upper mold shell 1 through the arc-shaped notch 40 and the limiting plate 33. This allows the U-shaped plate 21 to not only seal the upper mold shell 1 at the docking plate 8, but also to position the limiting plate 33 through the block 37 and the arc-shaped rod 39, thereby positioning the top of the upper mold shell 1. This improves the stability of the tight sealing connection between the upper mold shell 1 and the lower mold shell 2. The multi-directional positioning of the upper mold shell 1 effectively prevents the risk of separation between the upper mold shell 1 and the lower mold shell 2 during centrifugal rotation.

[0041] In another embodiment of the present invention, a limiting hole 42 is provided on the side wall of the limiting plate 33, an auxiliary groove 43 is provided on the passive circular plate 4, an auxiliary rod 44 is slidably installed in the auxiliary groove 43, the auxiliary rod 44 and the auxiliary groove 43 are connected by a third elastic member 45, an auxiliary inclined surface 46 is provided on the auxiliary rod 44, an active plate 47 is slidably installed in the auxiliary groove 43, the active plate 47 and the inner wall of the auxiliary groove 43 are connected by a fourth elastic member 48, an active inclined surface 49 is provided on the active plate 47, and the active inclined surface 49 and the auxiliary inclined surface 46 are wedge-shapedly fitted together.

[0042] Specifically, after the lower mold shell 2 is filled with concrete and sealed by the upper mold shell 1, the workers use hoisting equipment to hoist the upper mold shell 1, lower mold shell 2, and passive circular plate 4 onto the centrifugal roller. The centrifugal roller drives the passive circular plate 4 to rotate. During the rotation of the passive circular plate 4, the passive circular plate 4 drives the active plate 47 to rotate. The active plate 47 generates centrifugal force during rotation. As the rotation speed of the passive circular plate 4 gradually increases, the centrifugal force generated by the active plate 47 in the auxiliary groove 43 gradually increases, causing the active plate 47 to exert a tension on the fourth elastic element 48 (the fourth elastic element 48 is a component capable of telescopic return, preferably a spring), so that the fourth elastic element 48 is in a stretched state. Simultaneously, due to the active inclined surface 49 on the active plate 47 and the auxiliary inclined surface 4 on the auxiliary rod 44... The wedge-shaped fit between the 6 members allows the active plate 47 to push the auxiliary rod 44 to slide towards the outside of the auxiliary groove 43 during the stretching of the fourth elastic member 48. The auxiliary rod 44 then compresses the third elastic member 45 (which is a retractable and repositionable element, preferably a spring), causing the third elastic member 45 to be in a compressed state. This allows the auxiliary rod 44 to slide into the limiting hole 42 on the limiting plate 33, enabling the auxiliary rod 44 to reposition the limiting plate 33. As the rotation speed of the passive circular plate 4 gradually increases, the length of the auxiliary rod 44 pushed into the limiting hole 42 by the active plate 47 increases, making the positioning of the limiting plate 33 by the active plate 47 through the auxiliary rod 44 more stable. This ensures the stability of the sealing between the upper mold shell 1 and the lower mold shell 2.

[0043] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A reusable, high-precision concrete pole formwork splicing device, comprising an upper formwork shell and a lower formwork shell, wherein the upper and lower formwork shells are mutually fitted and adapted to each other, characterized in that, It also includes a positioning unit, which includes a hollow round rod. Passive round plates are symmetrically installed at both ends of the lower mold shell. Multiple through holes are evenly opened on both passive round plates along their circumferential direction. A hollow round rod is installed in each through hole by means of sliding sealing. The hollow round rods are connected to each other by a connecting plate. The connecting plate and its corresponding passive round plate are connected by a first elastic element.

2. The reusable high-precision concrete pole steel formwork splicing device according to claim 1, characterized in that, Both the upper and lower mold shells have symmetrically arranged mating plates on their sides.

3. The reusable high-precision concrete pole steel formwork splicing device according to claim 1, characterized in that, Each of the perforations has a partition block symmetrically arranged along its circumferential direction at one end near the interior of the lower mold shell.

4. The reusable high-precision concrete pole steel formwork splicing device according to claim 3, characterized in that, Each of the partitions is connected to its corresponding inner wall by a second elastic element, and the partitions in the same perforation press against each other to seal the perforation.

5. The reusable high-precision concrete pole steel formwork splicing device according to claim 1, characterized in that, Each of the hollow round rods has an annular inclined surface on the outer wall of the end closest to the interior of the lower mold shell.

6. The reusable high-precision concrete pole steel formwork splicing device according to claim 5, characterized in that, The ends of each of the partitions that abut against each other are driven inclined surfaces, and the annular inclined surface on the hollow round rod and the driven inclined surface on the partition plate in the corresponding through hole are wedge-shapedly fitted together.

7. The reusable high-precision concrete pole steel formwork splicing device according to claim 1, characterized in that, The diameter of the opening inside each of the hollow round rods gradually decreases from the end closer to the inside of the lower mold shell to the end farther away from the inside of the lower mold shell.

8. The reusable high-precision concrete pole steel formwork splicing device according to claim 1, characterized in that, The internal openings of each hollow round rod and the reinforcing cage are mutually adapted to each other.

9. A reusable high-precision concrete pole steel formwork splicing device according to claim 1, characterized in that, Each of the two passive circular plates has a limiting groove at its top, and a limiting plate is symmetrically installed on both sides of the upper mold shell. The two limiting plates and their corresponding limiting grooves are slidably arranged to each other.

10. A reusable high-precision concrete pole steel formwork splicing device according to claim 9, characterized in that, The sidewalls of both limiting grooves are adjustable inclined surfaces, and the ends of the two limiting plates are set as centering inclined surfaces. The centering inclined surfaces on the two limiting plates are respectively wedge-shaped with the adjusting inclined surfaces in their corresponding limiting grooves.

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