Cement pole steam curing device

Abstract

The present application relates to a kind of cement pole steam curing device, including steam curing box and closure door, the inside of steam curing box is provided with the inner steam nozzle and outer steam nozzle for spraying steam to the inner and outer surface of cement pole, the rotating connection of through and fixed shaft is connected on the closure door, automatic clamping mechanism is arranged on the rotating drum, support frame is fixed on the closure door, the brush frame one for cleaning the outside wall of cement pole is slidably connected on the support frame, the brush frame two for cleaning the inside of cement pole is slidably connected on the inner steam nozzle, cement pole is placed on support frame, and push closure door to push cement pole to steam curing box, while closure door is closed to steam curing box, automatic clamping mechanism is driven by the driving part to clamp cement pole while driving cement pole to rotate, steam is sprayed to the inner and outer surface of cement pole by inner steam nozzle and outer steam nozzle, and rotating drum drives brush frame two and brush frame one to clean the inner and outer surface of cement pole simultaneously.

Description

Technical Field

[0001] This invention relates to the field of cement pole maintenance, specifically to a steam curing device for cement poles. Background Technology

[0002] After cement poles are manufactured and formed, they need to be steam cured. Steam provides the necessary temperature and humidity for the cement poles to harden, accelerating the hardening process and improving the overall quality of the cement poles.

[0003] Because cement poles are heavy, long, and deep, it is not convenient to perform comprehensive and uniform steam curing on their surface. Furthermore, it is not convenient to clean the dirt on the inner and outer surfaces of cement poles during steam curing. Therefore, we propose a steam curing device for cement poles. Summary of the Invention

[0004] The purpose of this invention is to provide a steam curing device for cement poles to solve the problems mentioned in the background art. To achieve the above objectives, the present invention provides the following technical solution: a steam curing device for cement poles, comprising a steam curing chamber and a sealing door for sealing the steam curing chamber. The steam curing chamber is equipped with an inner steam nozzle and an outer steam nozzle for spraying steam onto the inner and outer surfaces of the cement pole. A rotating cylinder is rotatably connected through and fixed to the sealing door. An automatic clamping mechanism is installed on the rotating cylinder. A support frame is fixed to the sealing door, and the cement pole can rotate on the support frame. A first brush holder for cleaning the outer wall of the cement pole is slidably connected to the support frame, and a second brush holder for cleaning the inner side of the cement pole is slidably connected to the inner steam nozzle. The cement pole is placed on the support frame, and the sealing door pushes the cement pole into the steam curing chamber, simultaneously sealing the steam curing chamber. Driven by a driving component, the rotating cylinder drives the automatic clamping mechanism to clamp the cement pole and simultaneously rotate the cement pole. Steam is sprayed onto the inner and outer surfaces of the cement pole from the inner and outer steam nozzles, and the rotating cylinder simultaneously drives the second brush holder and the second brush holder to clean the inner and outer surfaces of the cement pole.

[0005] Preferably, a bracket is fixed on the inner side wall of the steam curing box, and the inner steam nozzle and the outer steam nozzle are parallel to each other and fixed on the bracket. The inner steam nozzle and the outer steam nozzle are connected to the steam equipment through the conduit. Multiple air outlet holes are opened on the side wall of the inner steam nozzle, and multiple nozzles are fixed and connected on the side wall of the outer steam nozzle. The inner steam nozzle passes through and is slidably connected to the brush holder.

[0006] Preferably, multiple pairs of shafts are fixed on the support frame, with two shafts in each pair, and support wheels are rotatably connected to the shafts. The cement pole is placed on the support wheels on the multiple pairs of shafts, and the bottom of the support frame and the closed door are equipped with traveling wheels.

[0007] Preferably, a reciprocating screw is rotatably connected to the support frame, and gear 1 and gear 3 are coaxially fixedly connected to both ends of the reciprocating screw. A gear ring is sleeved and fixedly connected to the outer peripheral wall of the rotating cylinder, and the gear ring meshes with gear 1. A slide rail is fixedly connected to the support frame, and the slide rail is parallel to the reciprocating screw. The brush holder is slidably connected to the slide rail, and the reciprocating screw passes through and slidably connects to the brush holder.

[0008] Preferably, a reciprocating screw two is rotatably connected to the bracket on a fixed axis. One end of the reciprocating screw two is coaxially fixedly connected to a gear two. A gear three can mesh with the gear two. The reciprocating screw two is arranged parallel to the inner steam nozzle. The reciprocating screw two passes through and slides to connect to the brush holder two.

[0009] Preferably, the driving component includes a motor, which is fixed on the side of the closed door away from the support frame. A sprocket is coaxially fixedly connected to the rotating drum, and the output shaft of the motor is connected to the sprocket via a chain drive.

[0010] Preferably, the automatic clamping mechanism includes two through holes on the side wall of the rotating drum, and the two through holes are symmetrically arranged on both sides of the central axis of the rotating drum. Two parallel connecting rods are inserted into the through holes, and the connecting rods are rotatably connected to the side wall of the through holes. The ends of the two connecting rods on the inner side of the rotating drum are hinged to the connecting rods on the outer side of the rotating drum, and the ends of the two connecting rods on the outer side of the rotating drum are hinged to the clamping plates. Pads are fixed on the opposite sides of the two clamping plates.

[0011] Preferably, a sliding rod is slidably connected inside the rotating drum, and the sliding rod is perpendicular to the central axis of the rotating drum. A sliding sleeve is fitted onto the sliding rod and slidably connected thereto, and the two sliding sleeves are respectively fixedly connected to the two connecting rods.

[0012] Preferably, the end of the rotating drum pointing to the outside of the steam curing box is coaxially and fixedly connected to the turntable, and the center of the turntable is connected to the pull rod through and slidably. The end of the pull rod inside the rotating drum is perpendicular to the slide rod and fixedly connected, and the end of the pull rod outside the rotating drum is fixedly connected to the connecting rod three.

[0013] Preferably, two telescopic cylinders 1 are fixed on the side of the turntable away from the rotating cylinder, and the telescopic rods of the two telescopic cylinders 1 are fixedly connected to the connecting rod 3. Multiple telescopic cylinders 2 are fixed on the side of the turntable away from the rotating cylinder, and the multiple telescopic cylinders 2 are arranged at equal intervals along the circumference of the turntable. Both telescopic cylinders 2 and telescopic cylinders 1 are filled with oil, and the telescopic cylinders 2 and 1 are connected by oil pipes. Multiple slide rails 2 are fixed on the side of the turntable away from the rotating cylinder, and the multiple slide rails 2 are arranged one-to-one with the multiple telescopic cylinders 2. A slider is slidably connected on the slide rail 2, and the slider is fixedly connected to the telescopic rod of the corresponding telescopic cylinder 2. The slider is connected to the end of the corresponding telescopic cylinder 2 by a spring.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] In this invention, cement poles are placed on a support frame to drive their rotation and push a closed door into the steam curing chamber. Simultaneously, the closed door seals the chamber. Driven by a driving component, a rotating drum activates an automatic clamping mechanism to clamp the cement pole while simultaneously rotating it. This automatic clamping mechanism prevents the inertial force of the cement pole from causing torsional damage to the motor shaft, thus extending the motor's lifespan. Steam is sprayed onto the inner and outer surfaces of the cement pole from both the inner and outer steam nozzles. The rotating drum also drives two brush holders to clean the inner and outer surfaces of the cement pole. This achieves simultaneous and efficient cleaning of the inner and outer surfaces of the cement pole by uniformly and efficiently spraying high-temperature steam, saving time and effort and improving the steam curing effect on the cement pole. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall assembly cross-section of the present invention;

[0017] Figure 2 This is a schematic diagram of the self-clamping component structure in this invention;

[0018] Figure 3 This is a side view of the turntable structure in this invention;

[0019] Figure 4 This is a schematic diagram of the connection structure of the reciprocating lead screw, the inner steam nozzle, and the brush holder in this invention.

[0020] Figure 5 This is a side view of the connection structure between the brush holder and the reciprocating lead screw in this invention.

[0021] In the diagram: 1. Steam curing chamber; 2. Support frame; 3. External steam nozzle; 4. Nozzle; 5. Guide tube; 6. Gear II; 7. Enclosed door; 8. Support frame; 9. Shaft frame; 10. Support wheel; 11. Reciprocating screw I; 12. Gear I; 13. Brush holder I; 14. Gear III; 15. Traveling wheel; 16. Turntable; 17. Gear ring; 18. Clamping plate; 19. Rotary cylinder; 20. Through hole; 21. Connecting rod I; 22. Pad; 23. Connecting rod II; 24. Sliding sleeve; 25. Sliding rod; 26. Pull rod; 27. Connecting rod III; 28. Telescopic cylinder I; 29. ​​Telescopic cylinder II; 30. Slider; 31. Slide rail II; 32. Spring; 33. Sprocket; 34. Chain; 35. Reciprocating screw II; 36. Internal steam nozzle; 37. Air outlet; 38. Brush holder II; 39. Slide rail I. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figures 1 to 5 This invention provides a technical solution: a steam curing device for cement poles, comprising a steam curing chamber 1 and a sealing door 7 for sealing the steam curing chamber 1. The steam curing chamber 1 is equipped with an inner steam nozzle 36 and an outer steam nozzle 3 for spraying steam onto the inner and outer surfaces of the cement pole. A rotating cylinder 19 is rotatably connected through and fixed to the sealing door 7. An automatic clamping mechanism is provided on the rotating cylinder 19. A support frame 8 is fixed to the sealing door 7, and the cement pole can rotate on the support frame 8. A brush holder 13 for cleaning the outer wall of the cement pole is slidably connected to the support frame 8. A second brush holder 38 for cleaning the inside of a cement pole is slidably connected to the steam nozzle 36. The cement pole is placed on the support frame 8, and the closed door 7 is pushed to push the cement pole into the steam curing chamber 1. At the same time, the closed door 7 closes the steam curing chamber 1. The rotating drum 19, driven by the drive component, drives the automatic clamping mechanism to clamp the cement pole and drive the cement pole to rotate. Steam is sprayed onto the inner and outer surfaces of the cement pole by the inner steam nozzle 36 and the outer steam nozzle 3. The rotating drum 19 also drives the second brush holder 38 and the first brush holder 13 to clean the inner and outer surfaces of the cement pole.

[0024] In this embodiment, a bracket 2 is fixed on the inner wall of the steam curing box 1, and the inner steam nozzle 36 and the outer steam nozzle 3 are parallel to each other and fixed on the bracket 2. The inner steam nozzle 36 and the outer steam nozzle 3 are connected to the steam equipment through the conduit 5. The steam equipment is not shown in this application. Multiple air outlets 37 are opened on the side wall of the inner steam nozzle 36, and multiple nozzles 4 are fixed and connected on the side wall of the outer steam nozzle 3. The inner steam nozzle 36 passes through and is slidably connected to the brush holder 38.

[0025] In this embodiment, multiple pairs of shaft frames 9 are fixed on the support frame 8, with two shaft frames 9 in each pair. Support wheels 10 are rotatably connected to the shaft frames 9. The cement pole is placed on the support wheels 10 on the multiple pairs of shaft frames 9. Traveling wheels 15 are provided on the bottom of the support frame 8 and the closed door 7.

[0026] In this embodiment, a reciprocating screw 11 is rotatably connected to the support frame 8. Gear 12 and gear 3 14 are coaxially fixedly connected to both ends of the reciprocating screw 11. A gear ring 17 is sleeved and fixedly connected to the outer peripheral wall of the rotating cylinder 19, and the gear ring 17 meshes with gear 12. A slide rail 39 is fixedly connected to the support frame 8, and the slide rail 39 is parallel to the reciprocating screw 11. Brush holder 13 is slidably connected to the slide rail 39. The reciprocating screw 11 passes through and slidably connects to brush holder 13. A reciprocating screw 2 35 is rotatably connected to the bracket 2. Gear 2 6 is coaxially fixedly connected to one end of the reciprocating screw 2 35. Gear 3 14 can mesh with gear 2 6. The reciprocating screw 2 35 is parallel to the inner steam nozzle 36. The reciprocating screw 2 35 passes through and slidably connects to brush holder 2 38.

[0027] In this embodiment, the driving component includes a motor, which is fixed on the side of the closed door 7 away from the support frame 8. The motor is not shown in this application. A sprocket 33 is coaxially fixed on the rotating drum 19, and the output shaft of the motor is connected to the sprocket 33 through a chain 34.

[0028] In this embodiment, the automatic clamping mechanism includes two through holes 20 formed on the side wall of the rotating drum 19, and the two through holes 20 are symmetrically arranged on both sides of the central axis of the rotating drum 19. Two parallel connecting rods 21 are inserted into the through holes 20, and the connecting rods 21 are rotatably connected to the side wall of the through holes 20. The ends of the two connecting rods 21 located inside the rotating drum 19 are hinged to connecting rods 23, and the ends of the two connecting rods 21 located outside the rotating drum 19 are hinged to clamping plates 18. Pads are fixed on the opposite sides of the two clamping plates 18. 22. A sliding rod 25 is slidably connected inside the rotating cylinder 19, and the sliding rod 25 is perpendicular to the central axis of the rotating cylinder 19. A sliding sleeve 24 is sleeved on the sliding rod 25 and slidably connected. The two sliding sleeves 24 are respectively fixedly connected to the two connecting rods 23. The end of the rotating cylinder 19 pointing to the outside of the steam oven 1 is coaxially fixedly connected to the turntable 16. A pull rod 26 is slidably connected through the center of the turntable 16. The end of the pull rod 26 inside the rotating cylinder 19 is perpendicular to the sliding rod 25 and fixedly connected. The end of the pull rod 26 outside the rotating cylinder 19 is fixedly connected to the connecting rod 27.

[0029] In this embodiment, two telescopic cylinders 28 are fixed on the side of the turntable 16 away from the rotating cylinder 19. The telescopic rods of the two telescopic cylinders 28 are fixedly connected to the connecting rod 27. Multiple telescopic cylinders 29 are fixed on the side of the turntable 16 away from the rotating cylinder 19. The multiple telescopic cylinders 29 are arranged at equal intervals along the circumference of the turntable 16. Both the telescopic cylinders 29 and the telescopic cylinders 28 are filled with oil, and the telescopic cylinders 29 and the telescopic cylinders 28 are connected by oil pipes. Multiple slide rails 31 are fixed on the side of the turntable 16 away from the rotating cylinder 19. The multiple slide rails 31 are arranged one-to-one with the multiple telescopic cylinders 29. A slider 30 is slidably connected to the slide rail 31. The slider 30 is fixedly connected to the telescopic rod of the corresponding telescopic cylinder 29, and the end of the slider 30 is connected to the end of the corresponding telescopic cylinder 29 by a spring 32.

[0030] Working principle and advantages of this invention: The working process of this steam curing device for cement poles is as follows:

[0031] like Figure 1 , Figure 4 and Figure 5 As shown, cement poles are placed on each pair of support wheels 10. The support wheels 10 support the cement poles and allow them to rotate. After the cement poles are placed, the closing door 7 is pushed, causing the closing door 7 to drive the support frame 8 to push the cement poles into the steam curing chamber 1, and the closing door 7 closes the steam curing chamber 1. At the same time, gear 3 14 meshes with gear 2 6. The traveling wheels 15 on the closing door 7 and the support frame 8 facilitate pushing the cement poles into or pulling them out of the steam curing chamber 1, saving time and effort.

[0032] After completing the above work, start the motor, so that the motor drives the drum 19 to rotate through the chain 34 and sprocket 33, thereby causing the drum 19 to synchronously drive the turntable 16 to rotate. Figure 2 and Figure 3As shown, the turntable 16 rotates simultaneously, driving each slider 30 to rotate as well, thus giving each slider 30 centrifugal force. This centrifugal force compresses the corresponding spring 32 and simultaneously compresses the telescopic cylinder 29, causing the oil in the telescopic cylinder 29 to be transported to the telescopic cylinder 28 through the oil pipe. This causes the telescopic cylinder 28 to extend its telescopic rod, which in turn causes the telescopic rod to drive the pull rod 26 to move outwards from the rotating drum 19 via the connecting rod 3 27. As the pull rod 26 moves outwards from the rotating drum 19, it applies a pulling force to the two sliding sleeves 24 via the sliding rod 25. This causes the sliding sleeves 24 to exert a pulling force on the corresponding connecting rod 21 of the rotating drum 1 via the connecting rod 23. A pulling force is applied to one end of the cylinder 9, which causes the connecting rod 21 to move the clamping plate 18 closer to the central axis of the rotating drum 19. This causes the two clamping plates 18 to move closer to and tighten on the outer side wall of the cement pole end. The pad 22 increases friction and protects the surface of the cement pole. After the clamping plates 18 tighten the cement pole, the rotating drum 19 drives the cement pole to rotate on the support wheel 10 through the connecting rod 21 and the clamping plates 18. In the above process, the rotating drum 19 gradually and automatically tightens the cement pole after rotation and then drives the cement pole to rotate, thereby avoiding torsional damage to the motor shaft caused by the large static inertial force of the cement pole and improving the service life of the motor.

[0033] As described above, when the motor starts, the steam equipment delivers high-temperature steam to the outer steam nozzle 3 and the inner steam nozzle 36 through the conduit 5. This allows the outer steam nozzle 3 to spray high-temperature steam onto the outer wall of the cement pole through the nozzle 4, and the inner steam nozzle 36 to spray high-temperature steam onto the inner wall of the cement pole through the air outlet 37. This achieves uniform and efficient spraying of high-temperature steam onto the inner and outer surfaces of the cement pole, thereby improving the quality of steam curing of the cement pole.

[0034] While the rotating drum 19 rotates, the reciprocating screw 11 rotates through the gear ring 17 and gear 12, which in turn drives the brush holder 13 to move back and forth on the slide rail 39. This achieves steam curing of the outer wall of the cement pole while cleaning the outer wall. At the same time as the reciprocating screw 11 rotates, the reciprocating screw 25 rotates through gear 34 and gear 26, which in turn drives the brush holder 28 to slide back and forth on the inner steam nozzle 36. This achieves steam curing of the inner wall of the cement pole while cleaning the inner wall, saving time and effort and improving the steam curing effect on the cement pole.

[0035] After the steam curing of the cement pole is completed, the steam equipment stops supplying high-temperature steam, and then the motor stops working, causing the rotating drum 19 and its turntable 16 to stop rotating. This causes each slider 30 to lose centrifugal force, and under the restoring force of each spring 32, the slider 30 resets, causing the telescopic cylinder 29 to reset and the oil in the telescopic cylinder 28 to be extracted through the oil pipe. This causes the telescopic rod of the telescopic cylinder 28 to move the pull rod 26 into the rotating drum 19 through the connecting rod 3 27. This causes the pull rod 26 to push the slide rod 25 against the two sliding sleeves 24, causing the sliding sleeves 24 to push the end of the connecting rod 21 located in the rotating drum 19 through the connecting rod 23. This causes the connecting rod 21 to move the corresponding clamp 18 away from the outer wall of the cement pole, automatically releasing the cement pole and avoiding torsional damage to the motor shaft caused by the dynamic inertial force of the cement pole, thus improving the service life of the motor.

[0036] Then open the closed door 7 and pull out and remove the support frame 8 and the cement pole on it from the steam curing box 1 through the closed door 7 to complete the steam curing of the cement pole.

[0037] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

Claims

1. A steam curing device for a cement pole, comprising a steam curing chamber (1) and a closing door (7) for closing the steam curing chamber (1), characterized in that: The inside of the steam curing box (1) is provided with inner steam nozzles (36) and outer steam nozzles (3) for spraying steam on the inner and outer surfaces of the cement pole, the closing door (7) is provided with a rotating drum (19) penetrating and rotationally connected, the rotating drum (19) is provided with an automatic clamping mechanism, the closing door (7) is fixed with a support frame (8), and the cement pole can rotate on the support frame (8), the support frame (8) is slidably connected with a brush frame one (13) for cleaning the outer lateral wall of the cement pole, the inner steam nozzles (36) are slidably connected with a brush frame two (38) for cleaning the inner side of the cement pole, the cement pole is placed on the support frame (8), and the closing door (7) pushes the cement pole into the steam curing box (1), while the closing door (7) closes the steam curing box (1), the automatic clamping mechanism is driven by the driving part to clamp the cement pole and rotate the cement pole, steam is sprayed on the inner and outer surfaces of the cement pole by the inner steam nozzles (36) and the outer steam nozzles (3), and the rotating drum (19) drives the brush frame two (38) and the brush frame one (13) to clean the inner and outer surfaces of the cement pole.

2. A steam curing apparatus for a concrete pole as defined in claim 1, wherein: The inner side wall of the steam curing box (1) is fixed with a support (2), and the inner steam nozzles (36) and the outer steam nozzles (3) are parallel to each other and fixed on the support (2), the inner steam nozzles (36) and the outer steam nozzles (3) are connected with a steam equipment through a pipe (5), a plurality of air outlets (37) are formed in the side wall of the inner steam nozzles (36), a plurality of nozzles (4) are fixed and communicated on the side wall of the outer steam nozzles (3), and the inner steam nozzles (36) penetrate and are slidably connected with the brush frame two (38).

3. A steam curing apparatus for a concrete pole as defined in claim 2, wherein: A plurality of pairs of shaft supports (9) are fixed on the support frame (8), each pair of shaft supports (9) is provided with two, and a support wheel (10) is rotationally connected on the shaft support (9), the cement pole is placed on the support wheels (10) of the plurality of pairs of shaft supports (9), and walking wheels (15) are arranged on the bottom of the support frame (8) and the closing door (7).

4. A steam curing apparatus for a concrete pole as defined in claim 3, wherein: A reciprocating lead screw one (11) is rotationally connected on the support frame (8), gear one (12) and gear three (14) are coaxially and fixedly connected at the two ends of the reciprocating lead screw one (11), respectively, a gear ring (17) is sleeved and fixedly connected on the outer peripheral wall of the rotating drum (19), and the gear ring (17) is in meshing connection with the gear one (12), a slide rail one (39) is fixedly connected on the support frame (8), and the slide rail one (39) is parallel to the reciprocating lead screw one (11), the brush frame one (13) is slidably connected on the slide rail one (39), and the reciprocating lead screw one (11) penetrates and slidably connects the brush frame one (13).

5. A steam curing apparatus for a concrete pole as defined in claim 4, wherein: The support (2) is coaxially connected with a reciprocating screw two (35), one end of the reciprocating screw two (35) is coaxially fixedly connected with a gear two (6), the gear three (14) is meshingly connected with the gear two (6), the reciprocating screw two (35) and the inner steam nozzle (36) are arranged in parallel, and the reciprocating screw two (35) penetrates and is slidably connected with a brush holder two (38).

6. A steam curing apparatus for a concrete pole as defined in claim 3, wherein: The driving part comprises a motor, the motor is fixed on the side of the closed door (7) away from the support frame (8), the rotating drum (19) is coaxially fixedly connected with a chain wheel (33), and the output shaft of the motor is in transmission connection with the chain wheel (33) through a chain (34).

7. A steam curing apparatus for a concrete pole as defined in claim 6, wherein: The automatic clamping mechanism comprises two through holes (20) formed in the side wall of the rotating drum (19), and the two through holes (20) are symmetrically arranged on the two sides of the central axis of the rotating drum (19), two parallel connecting rods one (21) are inserted into the through holes (20), the connecting rod one (21) is fixedly and rotatably connected to the side wall of the through hole (20), the ends of the two connecting rods one (21) on the inner side of the rotating drum (19) are hingedly connected to a connecting rod two (23), the ends of the two connecting rods one (21) on the outer side of the rotating drum (19) are hingedly connected to a clamping plate (18), and the opposite sides of the two clamping plates (18) are fixedly provided with pads (22).

8. A steam curing apparatus for a concrete pole as defined in claim 7, wherein: The rotating drum (19) is slidably connected with a sliding rod (25), and the sliding rod (25) is arranged perpendicular to the central axis of the rotating drum (19), the sliding rod (25) is sleeved and slidably connected with a sliding sleeve (24), and the two sliding sleeves (24) are fixedly connected with the two connecting rod two (23).

9. A steam curing apparatus for a concrete pole according to claim 8, wherein: The end of the rotating drum (19) pointing to the outside of the steam curing box (1) is coaxially fixedly connected with a rotating disc (16), the center of the rotating disc (16) is penetrated and slidably connected with a pull rod (26), one end of the pull rod (26) inside the rotating drum (19) is fixedly connected with the sliding rod (25), and the other end of the pull rod (26) outside the rotating drum (19) is fixedly connected with a connecting rod three (27).

10. A steam curing apparatus for a concrete pole as defined in claim 9, wherein: The side of the rotating disc (16) away from the rotating drum (19) is fixedly provided with two telescopic cylinders one (28), the telescopic rods of the two telescopic cylinders one (28) are fixedly connected with the connecting rod three (27), the side of the rotating disc (16) away from the rotating drum (19) is fixedly provided with a plurality of telescopic cylinders two (29), the plurality of telescopic cylinders two (29) are arranged at equal intervals along the circumferential direction of the rotating disc (16), the telescopic cylinders two (29) and the telescopic cylinders one (28) are filled with oil, the telescopic cylinders two (29) and the telescopic cylinders one (28) are communicated through oil pipes, the side of the rotating disc (16) away from the rotating drum (19) is fixedly provided with a plurality of sliding rails two (31), the plurality of sliding rails two (31) are arranged in one-to-one correspondence with the plurality of telescopic cylinders two (29), the sliding rails two (31) are slidably connected with sliding blocks (30), the sliding blocks (30) are fixedly connected with the telescopic rods of the corresponding telescopic cylinders two (29), and the sliding blocks (30) are connected with the ends of the corresponding telescopic cylinders two (29) through springs (32).

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