A steam curing device for precast concrete piles with molds

Abstract

The present application relates to a steam curing device for precast concrete piles with molds, and pertains to the field of production of concrete piles. It includes a curing chamber, a steam spraying assembly, and a steam generator. The steam spraying assembly includes a support frame and nozzles. The interior of the support frame is hollow and is located inside the curing chamber. The precast concrete pile with a mold is arranged on the support frame and connected to the support frame. A plurality of nozzles are provided, and all the nozzles are communicated with the support frame and are all oriented towards the precast concrete pile with a mold. The steam generator is arranged outside the curing chamber and is communicated with the support frame. The present application has the effect of facilitating uniform heating of the precast concrete pile with a mold during the steam curing process.

Description

Technical Field

[0001] This application relates to the field of concrete pipe pile production, and in particular to a steam curing device for pipe piles with molds. Background Art

[0002] The production process of concrete pipe piles includes: concrete mixing, batching, mold closing, prestressed tensioning, centrifugal forming, steam curing, demolding, and autoclave curing. Among them, steam curing determines the demolding strength of the pipe piles, the quality of the concrete, and the effective stress after demolding of the pipe piles, and is an important process in pipe pile production.

[0003] Currently, when steam curing pipe piles with molds, multiple pipe piles with molds are usually stacked in a steam curing pool, and then steam is introduced into the steam curing pool to heat and maintain a constant temperature for the pipe piles with molds through the steam.

[0004] Multiple pipe piles with molds are stacked together, making it easy for the pipe piles with molds in the middle position to be unevenly heated, which is not conducive to the steam curing of the pipe piles with molds. Summary of the Invention

[0005] In order to facilitate uniform heating of pipe piles with molds during steam curing, this application provides a steam curing device for pipe piles with molds.

[0006] A steam curing device for pipe piles with molds provided by this application adopts the following technical solutions:

[0007] A steam curing device for pipe piles with molds includes:

[0008] A curing box;

[0009] A steam spraying assembly, the steam spraying assembly includes a support frame and nozzles;

[0010] The support frame, the interior of the support frame is hollow and is located inside the curing box, and the pipe pile with a mold is arranged on the support frame and connected to the support frame;

[0011] The nozzles, a plurality of nozzles are provided, and all the nozzles are communicated with the support frame and all face the pipe pile with a mold;

[0012] A steam generator, the steam generator is arranged outside the curing box and is communicated with the support frame.

[0013] By adopting the above technical solution, the steam generator passes steam into the inside of the support frame. The steam inside the support frame is directly sprayed on the precast concrete piles with formwork through the nozzles. By directly spraying the steam on a single precast concrete pile with formwork, the steam is liable to continuously surround the precast concrete pile with formwork. Compared with the stacked precast concrete piles with formwork, the precast concrete pile with formwork is not easily affected by other precast concrete piles with formwork. Furthermore, it makes the precast concrete pile with formwork easy to be heated evenly during the steam curing operation process, thereby improving the quality of steam curing of the precast concrete pile with formwork.

[0014] Optionally, a rotating assembly is arranged inside the curing box. The rotating assembly includes:

[0015] A support pipe, the support pipe is located inside the curing box and is rotatably connected to the curing box. One end of the support frame is connected to the side wall of the support pipe, and the other end is slidably connected to the inner side wall of the curing box;

[0016] A torque motor, the torque motor is located outside the curing box and is fixedly connected to the curing box. The output shaft of the torque motor penetrates through the curing box and is coaxially and fixedly connected to the support pipe.

[0017] By adopting the above technical solution, after the steam is sprayed from the nozzles on the precast concrete piles with formwork, part of the steam condenses on the precast concrete piles with formwork, and the other part of the steam escapes into the inside of the curing box. The steam escaping into the inside of the curing box gradually fills the curing box. The support pipe is driven to rotate by the torque motor, the support pipe drives the support frame to rotate, the support frame drives the precast concrete pile with formwork to rotate. During the rotation process, the precast concrete pile with formwork not only contacts the directly sprayed steam evenly, but also contacts the steam escaping in the curing box evenly, making the heating of the precast concrete pile with formwork more easily uniform; due to the large weight of the precast concrete pile with formwork, it is convenient to use a torque motor to drive the precast concrete pile with formwork to rotate.

[0018] Optionally, a driving gear is fixedly connected to the end of the support frame away from the support pipe. An annular face gear is fixedly arranged on the inner side wall of the curing box. The driving gear meshes with the face gear. One end of the support frame close to the support pipe is rotatably connected to the side wall of the support pipe. Both ends of the precast concrete pile with formwork are rotatably connected to the support frame.

[0019] By adopting the above technical solution, since the support frame meshes with the face gear through the driving gear, when the support frame rotates around the support pipe, the face gear drives the driving gear to rotate through meshing, and the driving gear drives the support frame to rotate, so that the support frame can rotate around the precast concrete pile with formwork, making it convenient for the nozzle to spray steam around the precast concrete pile with formwork, thereby further making the heating of the precast concrete pile with formwork more uniform.

[0020] Optionally, an annular steam groove is formed in the inner side wall of the curing box. An annular sealing plate is slidably arranged at the notch of the steam groove. A sealed state is maintained between the steam groove and the sealing plate. One end of the support frame close to the side wall of the curing box is communicated with and rotatably connected to the sealing plate. The steam generator is communicated with the steam groove.

[0021] By adopting the above technical solution, the steam generator feeds steam into the steam groove. The steam flows along the extending direction of the steam groove and flows into the support frame. During the rotation of the support frame around the support pipe, the sealing plate is driven to rotate, so that steam can be fed into the support frame during the rotation of the support frame.

[0022] Optionally, multiple groups of the support frames are arranged along the axial direction of the support pipe. Each group of the support frames is provided with a plurality of support frames. The plurality of support frames in each group are arranged along the circumferential direction of the support pipe. The multiple groups of support frames arranged along the axial direction of the support pipe are arranged in a staggered manner.

[0023] By adopting the above technical solution, a plurality of support frames are provided, so that the steam curing device can simultaneously perform steam curing on a plurality of precast concrete piles with molds. While the precast concrete piles with molds are uniformly heated, the steaming and curing efficiency of the precast concrete piles with molds is improved. Since the support frames along the axial direction of the support pipe are arranged in a staggered manner, the precast concrete piles with molds are not easily interfered with each other when being installed on the support frames, so that it is convenient to install the precast concrete piles with molds while providing a plurality of support frames.

[0024] Optionally, a fixing assembly is arranged at the connection between the support frame and the precast concrete pile with a mold. The fixing assembly includes a clamping block and a fixing block. Both the clamping block and the fixing block are semicircular arcs. The clamping block is fixedly connected to the support frame. One end of the fixing block is hinged to one end of the clamping block and the other end is detachably connected to the other end of the clamping block. The clamping block and the fixing block together form a circle. A rotating shaft is coaxially and fixedly arranged at the end face of the precast concrete pile with a mold. The rotating shaft is located between the clamping block and the fixing block and is rotatably connected to both the clamping block and the fixing block.

[0025] By adopting the above technical solution, when installing the precast concrete pile with a mold, separate the end of the fixing block that is detachably connected to the clamping block, then rotate the fixing block, place the rotating shaft of the precast concrete pile with a mold on the clamping block, and then rotate the fixing block to fix the detachable connection between the fixing block and the clamping block, so that the precast concrete pile with a mold can be conveniently installed on the support frame through the fixing block and the clamping block.

[0026] Optionally, rubber cushion layers are fixedly arranged on the inner sides of both the clamping block and the fixing block. A rolling bearing is fixedly sleeved on the rotating shaft. The outer ring of the rolling bearing is clamped between the rubber cushion layers of the clamping block and the fixing block. The rubber cushion layer is in close contact with the outer ring of the rolling bearing.

[0027] By adopting the above technical solution, the clamping block and the fixing block are in close contact with the rolling bearing on the rotating shaft through the rubber cushion layer, making the connection between the die-carrying pipe pile and the support frame more stable and not easily affecting the rotation of the support frame relative to the die-carrying pipe pile.

[0028] Optionally, a clamping block is fixedly connected to one end of the clamping block away from the hinge, and a clamping groove adapted to the clamping block is formed at one end of the fixing block away from the hinge. The clamping block is clamped in the clamping groove, a fixing pin shaft is inserted through the clamping block, and the fixing pin shaft is also inserted through the fixing block. The fixing pin shaft is slidably connected to the clamping block and the fixing block.

[0029] By adopting the above technical solution, the clamping block is clamped into the clamping groove, and then the fixing pin shaft is inserted into the clamping block and the fixing block, so that the clamping block and the fixing block are in a fixed state, making the disassembly of the fixing block and the clamping block convenient and fast.

[0030] Optionally, a plurality of spray pipes are communicated with one end of the support pipe, and the plurality of spray pipes are arranged along the circumferential direction of the support pipe. A plurality of steam outlet holes are formed on one side of the spray pipe close to the middle of the support pipe.

[0031] By adopting the above technical solution, the steam flowing in the support frame flows into the support pipe and then flows from the inside of the support pipe to the spray pipes at both ends of itself, and then flows into the curing box through the steam outlet holes of the spray pipes, thereby accelerating the filling speed of the steam in the curing box and facilitating the constant-temperature steam curing process of the die-carrying pipe pile.

[0032] Optionally, a condensation port and a steam outlet are communicated with the curing box. The condensation port is communicated with a water collecting tank, and the steam outlet is communicated with the steam generator through a pipeline.

[0033] By adopting the above technical solution, the condensed water in the curing box is collected into the water collecting tank through the condensation port, so that water resources are not easily wasted; the steam in the curing box is returned to the steam generator through the steam outlet, making the steam easy to recycle and reducing the energy consumption required for generating steam.

[0034] In summary, the present application includes at least one of the following beneficial technical effects:

[0035] 1. By directly spraying steam on the die-carrying pipe pile through the nozzles on the support frame, the heating of the die-carrying pipe pile is facilitated to be uniform.

[0036] 2. By driving the support frame to rotate around the support pipe through the support pipe, and driving the support frame to rotate around the die-carrying pipe pile through the driving gear and the face gear, the steam is more easily to make the heating of the die-carrying pipe pile uniform.

[0037] 3. The clamping block and the fixing block are connected to the rolling bearing of the rotating shaft through a rubber cushion layer, so that the support frame is easy to rotate while being stably connected to the precast concrete pile with die. Brief Description of the Drawings

[0038] Figure 1 is a schematic structural view of an embodiment of the present application;

[0039] Figure 2 is a sectional view intended to illustrate the rotating assembly;

[0040] Figure 3 is a schematic structural view intended to illustrate the arrangement of the support frame;

[0041] Figure 4 is a schematic structural view intended to illustrate the steam spraying assembly;

[0042] Figure 5 is an exploded view intended to illustrate the fixing assembly.

[0043] Description of the Reference Numerals:

[0044] 1, curing box; 11, steam groove; 12, condensation port; 121, water collecting tank; 13, steam outlet; 2, steam spraying assembly; 21, support frame; 211, sealing plate; 22, nozzle; 23, spray pipe; 231, steam outlet hole; 3, precast concrete pile with die; 31, rotating shaft; 32, rolling bearing; 4, steam generator; 5, rotating assembly; 51, support pipe; 52, torque motor; 53, driving gear; 54, face gear; 6, fixing assembly; 61, clamping block; 611, rubber cushion layer; 612, clamping block; 6121, fixing hole; 62, fixing block; 621, clamping groove; 63, fixing pin shaft. Detailed Description of the Embodiment

[0045] The following further describes the present application in detail Figures 1-5 in conjunction with the attached drawings.

[0046] An embodiment of the present application discloses a steam curing device for a precast concrete pile with die. Referring to Figure 1 and Figure 2 , a steam curing device for a precast concrete pile with die includes a curing box 1, a steam spraying assembly 2 and a steam generator 4. The steam spraying assembly 2 is arranged inside the curing box 1, the steam generator 4 is arranged outside the curing box 1. The steam spraying assembly 2 is connected to the curing box 1 and is also connected to the precast concrete pile with die 3. The steam generator 4 is connected to the steam spraying assembly 2. The steam spraying assembly 2 is used to directly spray steam onto the precast concrete pile with die 3.

[0047] During use, the precast concrete pile with die 3 is installed on the steam spraying assembly 2, and the steam generator 4 is started. The steam generator 4 passes the steam into the steam spraying assembly 2, and the steam spraying assembly 2 directly sprays the steam onto the precast concrete pile with die 3, so that the precast concrete pile with die 3 is heated evenly during the steam curing process.

[0048] Refer to Figure 1 , the curing box 1 is in the shape of a circular box and is vertically arranged, and the bottom end of the curing box 1 is inclined in the vertically downward direction. The top end of the curing box 1 is communicated with a circular steam outlet 13, and the lowest position of the bottom end is communicated with a condensation port 12. Both the condensation port 12 and the steam outlet 13 are circular. The steam outlet 13 is communicated with the steam generator 4 through a pipeline, and the condensation port 12 is communicated with a water collecting tank 121.

[0049] Refer to Figure 2 , a rotating assembly 5 is arranged in the curing box 1. The rotating assembly 5 includes a support pipe 51, a torque motor 52, a driving gear 53 and an end face gear 54. The support pipe 51 is in the shape of a circular tube and is coaxially arranged with the curing box 1. The bottom end of the support pipe 51 penetrates through the bottom end of the curing box 1 and is rotatably connected with the bottom end of the curing box 1. The top end of the support pipe 51 is rotatably connected with the top end of the curing box 1. The torque motor 52 is located below the curing box 1 and is fixedly connected with the outer side wall of the curing box 1. The output shaft of the torque motor 52 is coaxially and fixedly connected with the support pipe 51.

[0050] Refer to Figure 2 and Figure 3 , the steam spraying assembly 2 includes a support frame 21, a nozzle 22 and a spray pipe 23. The support frame 21 is in the shape of a rectangular frame. The length direction of the support frame 21 is perpendicular to the axis direction of the support pipe 51. A plurality of groups of support frames 21 are arranged along the axis direction of the support pipe 51. Each group of support frames 21 has a plurality of them, and the plurality of support frames 21 in each group are arranged around the circumference of the support pipe 51. The plurality of groups of support frames 21 arranged along the axis direction of the support pipe 51 are arranged in a staggered manner.

[0051] Refer to Figure 2 , the inside of the support frame 21 is hollow. One end in the length direction of the support frame 21 is communicated with the side wall of the support pipe 51. The support frame 21 is rotatably connected with the support pipe 51. A plurality of driving gears 53 are provided and correspond to the support frames 21 one by one. The driving gear 53 is located at the end of the support frame 21 far from the support pipe 51 and is fixedly connected with the support frame 21. The axis direction of the driving gear 53 coincides with the central axis in the length direction of the support frame 21.

[0052] A plurality of end face gears 54 are provided and correspond to the plurality of groups of support frames 21 arranged along the axis direction of the support pipe 51 one by one. The driving gears 53 on each group of support frames 21 are all meshed with the end face gear 54. The end face gear 54 is located below the driving gear 53 and is in the shape of a circular ring. The end face gear 54 is coaxially and fixedly connected with the curing box 1.

[0053] Refer to Figure 4, there are multiple groups of nozzles 22, which correspond to the support frames 21 one by one. Each group of nozzles 22 is arranged on the corresponding support frame 21. Each group of nozzles 22 has multiple nozzles. Each group of nozzles 22 is symmetrically arranged along the length direction of the support frame 21. The nozzles 22 are located inside the support frame 21 and face the central axis in the length direction of the support frame 21. The nozzles 22 are connected to the support frame 21.

[0054] Refer to Figure 2 , a plurality of steam grooves 11 are formed on the inner side wall of the curing box 1. The steam grooves 11 correspond to the end face gears 54 one by one. The steam grooves 11 are located above the end face gears 54 and are arranged opposite to the driving gears 53. The steam grooves 11 are annular and have a rectangular cross-section along the extending direction.

[0055] An annular sealing plate 211 is arranged at the notch of the steam groove 11. The sealing plate 211 is slidably connected to the curing box 1. The space between the steam groove 11 and the sealing plate 211 is in a sealed state. The sealing plate 211 is coaxially arranged with the curing box 1. One end of the support frame 21 connected to the driving gear 53 is communicated with the sealing plate 211. The support frame 21 is rotatably connected to the sealing plate 211. The steam generator 4 is communicated with a plurality of steam grooves 11 through pipelines.

[0056] A plurality of spray pipes 23 are provided. The plurality of spray pipes 23 are respectively located at the bottom end of the support pipe 51 and inside the curing box 1. The spray pipes 23 are arranged along the circumferential direction of the support pipe 51, and one end in the axial direction is communicated with the support pipe 51. The axial direction of the spray pipes 23 is perpendicular to the axial direction of the support pipe 51. A plurality of steam outlet holes 231 are formed in the spray pipes 23 along the axial direction. The steam outlet holes 231 are circular and are located on one side of the spray pipes 23 close to the middle of the support pipe 51. The steam outlet holes 231 penetrate through the side walls of the spray pipes 23.

[0057] During use, start the steam generator 4. The steam generator 4 generates steam. The steam in the steam generator 4 enters into a plurality of steam grooves 11. The steam in the steam grooves 11 enters into the support frame 21. Then start the torque motor 52. The torque motor 52 drives the support pipe 51 to rotate. The support pipe 51 drives the support frame 21 to rotate around the axis of the support pipe 51. The support frame 21 drives the driving gear 53 to rotate around the axis of the support pipe 51. Under the meshing action of the end face gear 54 and the driving gear 53, the driving gear 53 rotates selflessly. The driving gear 53 drives the support frame 21 to rotate. The support frame 21 drives the nozzles 22 to rotate around the axis of the formwork pipe pile 3, so that the formwork pipe pile 3 is heated evenly during the steam curing process; the steam flows from the support frame 21 into the support pipe 51 and then flows into the spray pipes 23 through the support pipe 51. The steam in the spray pipes 23 flows into the curing box 1 from the steam outlet holes 231, so that the curing box 1 is easily filled with steam quickly, which helps the formwork pipe pile 3 to be cured at a constant temperature.

[0058] Refer to Figure 4, the precast concrete pile 3 with mold is located inside the support frame 21, and its axis coincides with the central axis of the support frame 21. Both ends of the precast concrete pile 3 with mold are coaxially and fixedly connected with rotating shafts 31. Rolling bearings 32 are arranged on the rotating shafts 31. The inner ring of the rolling bearing 32 is sleeved on the rotating shaft 31 and fixedly connected with the rotating shaft 31.

[0059] Fixing components 6 are arranged between the support frame 21 and the two rotating shafts 31. The fixing component 6 includes a clamping block 61 and a fixing block 62. Both the clamping block 61 and the fixing block 62 are semi-circular arcs and jointly form a complete circle. The clamping block 61 is fixedly connected with the support frame 21. The axis directions of the clamping block 61 and the fixing block 62 coincide with the central axis of the length direction of the support frame 21.

[0060] Refer to Figure 5 , one end of the fixing block 62 is hinged to one end of the clamping block 61. A clamping groove 621 is opened at the end of the fixing block 62 away from the hinge. The clamping groove 621 is rectangular and runs through the fixing block 62 along the diameter direction of the fixing block 62. The clamping groove 621 is located in the middle of the end face of the fixing block 62.

[0061] A clamping block 612 is fixedly connected to the end of the clamping block 61 away from the hinge. The clamping block 612 is adapted to the clamping groove 621 and is clamped in the clamping groove 621. The clamping block 612 is located in the middle of the end face of the clamping block 61. A fixing hole 6121 is opened on the side of the clamping block 612 close to the precast concrete pile 3 with mold. The fixing hole 6121 runs through the thickness of the clamping block 612 and the thickness of the fixing block 62. A fixing pin 63 is inserted into the fixing hole 6121. The fixing pin 63 is adapted to the fixing hole 6121. The fixing pin 63 is slidably connected to both the clamping block 612 and the fixing block 62.

[0062] The rolling bearing 32 is located between the clamping block 61 and the fixing block 62. A layer of rubber cushion layer 611 is fixedly arranged on the side of the clamping block 61 and the fixing block 62 close to the rolling bearing 32. The rubber cushion layer 611 is in close contact with the outer ring of the rolling bearing 32.

[0063] During use, the fixing block 62 and the clamping block 61 are in a fixed state through the fixing pin 63. When the fixing pin 63 is pulled out, the fixed state of the fixing block 62 and the clamping block 61 is released, making the installation or disassembly of the precast concrete pile 3 with mold and the support frame 21 convenient and fast; the rotating shaft 31 is fixed by the rubber cushion layer 611 of the fixing block 62 and the clamping block 61 through the rolling bearing 32, making it convenient for the support frame 21 to rotate relative to the precast concrete pile 3 with mold, so that steam can be evenly sprayed on the precast concrete pile 3 with mold.

[0064] The implementation principle of a steam curing device for precast concrete piles with molds in an embodiment of the present application is as follows: During use, the steam generator 4 is started. The steam generator 4 generates steam and passes the steam into multiple steam grooves 11. The steam flows into the support frame 21 through the steam grooves 11 and is sprayed onto the precast concrete pile 3 with mold through the nozzles 22. Then, the torque motor 52 is started. The torque motor 52 drives the support pipe 51 to rotate. The support pipe 51 drives the support frame 21 to rotate around the rotation axis of the support pipe 51. The support frame 21 rotates self - clockwise under the action of the driving gear 53 and the end face gear 54. The support frame 21 drives the nozzles 22 to rotate around the axis direction of the precast concrete pile 3 with mold, so that the nozzles 22 can easily spray steam evenly onto the precast concrete pile 3 with mold, and further make the precast concrete pile 3 with mold be heated evenly during the steam curing process.

[0065] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A steam curing device for precast concrete piles with molds, characterized in that, Comprising: Curing box (1); Steam spraying assembly (2), the steam spraying assembly (2) includes a support frame (21) and a nozzle (22); The support frame (21), the interior of the support frame (21) is hollow and located inside the curing box (1), and the precast pipe pile with mold (3) is arranged on the support frame (21) and connected to the support frame (21); The nozzle (22), a plurality of nozzles (22) are provided, and all the nozzles (22) are communicated with the support frame (21) and all face the precast pipe pile with mold (3); Steam generator (4), the steam generator (4) is arranged outside the curing box (1) and communicated with the support frame (21); A rotating assembly (5) is arranged inside the curing box (1), and the rotating assembly (5) includes: Support pipe (51), the support pipe (51) is located inside the curing box (1) and is rotatably connected to the curing box (1), one end of the support frame (21) is connected to the side wall of the support pipe (51), and the other end is slidably connected to the inner side wall of the curing box (1); Torque motor (52), the torque motor (52) is located outside the curing box (1) and is fixedly connected to the curing box (1), the output shaft of the torque motor (52) penetrates through the curing box (1) and is coaxially and fixedly connected to the support pipe (51); One end of the support frame (21) away from the support pipe (51) is fixedly connected with a driving gear (53), an annular end face gear (54) is fixedly arranged on the inner side wall of the curing box (1), the driving gear (53) is engaged with the end face gear (54), one end of the support frame (21) close to the support pipe (51) is rotatably connected to the side wall of the support pipe (51), and both ends of the precast pipe pile with mold (3) are rotatably connected to the support frame (21); An annular steam groove (11) is formed on the inner side wall of the curing box (1), an annular sealing plate (211) is slidably arranged at the notch of the steam groove (11), the steam groove (11) and the sealing plate (211) are in a sealed state, one end of the support frame (21) close to the side wall of the curing box (1) is communicated with and rotatably connected to the sealing plate (211), and the steam generator (4) is communicated with the steam groove (11); A plurality of groups of the support frames (21) are arranged along the axial direction of the support pipe (51), each group of the support frames (21) has a plurality of them, and the plurality of the support frames (21) in each group are arranged along the circumferential direction of the support pipe (51), and the plurality of groups of the support frames (21) arranged along the axial direction of the support pipe (51) are arranged in a staggered manner.

2. The steam curing device for the precast concrete pile with mold according to claim 1, wherein, A fixing component (6) is arranged at the connection position between the support frame (21) and the precast concrete pile with formwork (3). The fixing component (6) includes a clamping block (61) and a fixing block (62). Both the clamping block (61) and the fixing block (62) are semi-circular arcs. The clamping block (61) is fixedly connected to the support frame (21). One end of the fixing block (62) is hinged to one end of the clamping block (61), and the other end is detachably connected to the other end of the clamping block (61). The clamping block (61) and the fixing block (62) together form a circle. A rotating shaft (31) is coaxially and fixedly arranged on the end face of the precast concrete pile with formwork (3). The rotating shaft (31) is located between the clamping block (61) and the fixing block (62) and is rotatably connected to both the clamping block (61) and the fixing block (62).

3. The steam curing device for the precast concrete pile with mold according to claim 2, characterized in that, Rubber cushion layers (611) are fixedly arranged on the inner sides of the clamping block (61) and the fixing block (62). A rolling bearing (32) is fixedly sleeved on the rotating shaft (31). The outer ring of the rolling bearing (32) is clamped between the rubber cushion layers (611) of the clamping block (61) and the fixing block (62). The rubber cushion layer (611) is in close contact with the outer ring of the rolling bearing (32).

4. The steam curing device for the die-cast pipe pile according to claim 2, characterized in that, A clamping block (612) is fixedly connected to the end of the clamping block (61) away from the hinge. A clamping groove (621) adapted to the clamping block (612) is formed at the end of the fixing block (62) away from the hinge. The clamping block (612) is clamped in the clamping groove (621). A fixing pin shaft (63) is passed through the clamping block (612). The fixing pin shaft (63) is also passed through the fixing block (62). The fixing pin shaft (63) is slidably connected to both the clamping block (612) and the fixing block (62).

5. The steam curing device for a precast concrete pile with a mold according to claim 1, characterized in that, One end of the support pipe (51) is communicated with a plurality of spray pipes (23). The plurality of spray pipes (23) are arranged along the circumferential direction of the support pipe (51). A plurality of steam outlet holes (231) are formed on one side of the spray pipe (23) close to the middle of the support pipe (51).

6. The steam curing device for the die-cast pipe pile according to claim 1, characterized in that, A condensation port (12) and a steam outlet (13) are communicated with the curing box (1). The condensation port (12) is communicated with a water collecting tank (121). The steam outlet (13) is communicated with the steam generator (4) through a pipeline.

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