Beam yard concrete precast beam plate steam curing chamber

Abstract

The invention relates to a beam yard concrete precast beam plate steam curing chamber, which belongs to the technical field of concrete steam curing, and comprises two side partition walls, a top partition wall and a plurality of pulley assemblies, the top partition wall and the two side partition walls are rotationally connected, and the top partition wall, the two side partition walls and the ground define a steam-curing space of the beam slab; a plurality of tracks for the two side partition walls to slide are arranged on the ground, and the side partition walls transversely move on the tracks to adjust the width of the steam-curing space; a plurality of pulley assemblies are rotatably installed at the bottom of any side partition wall, any pulley assembly slides on multiple rails, when the pulley assemblies rotate vertically, the side partition walls and the top partition wall are connected in a clamped mode, when the pulley assemblies rotate transversely, the top partition wall and the side partition walls rotate relatively, and by adjusting the width of the steam curing chamber, the width of the steam curing chamber is matched with the actual size of a beam plate. And the problems of heat dispersion and non-uniform steam curing caused by an overlarge steam curing chamber are avoided, so that the steam curing quality and efficiency of the beam plate are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of concrete steam curing, and particularly relates to a steam curing chamber for precast concrete beams and slabs in a beam yard. Background Art

[0002] During the production process of precast concrete beams and slabs, steam curing is a key process to ensure the early strength development of concrete and shorten the demolding cycle. Traditional steam curing chambers mostly adopt a closed structure with a fixed width, and maintain the internal temperature and humidity through a steam generator. However, with the increasing demand for diverse beam and slab specifications in prefabricated buildings, such fixed steam curing chambers gradually expose the following technical bottlenecks: When facing beams and slabs of different sizes, especially components with a smaller width, a steam curing chamber with a fixed width needs to heat the redundant space ineffectively. Research shows that when the vacancy rate of the steam curing chamber exceeds 30%, the heat energy loss rate can reach more than 40% (data cited from "White Paper on Energy Efficiency in the Concrete Industry"), resulting in serious energy waste.

[0003] To adapt to multi-specification production, traditional solutions need to configure multiple dedicated steam curing chambers or frequently modify the chamber structure, resulting in an increase in equipment investment costs and site occupancy rate. In addition, under a fixed volume, the steam has a large thermal inertia and the temperature regulation response lags. When curing beams and slabs with different heat capacities, the existing system is difficult to quickly reach the set temperature and humidity curve, affecting the standardization of the curing process.

[0004] Therefore, a steam curing chamber for concrete precast components that can change the curing space is needed. Summary of the Invention

[0005] To solve the above problems existing in the prior art, the present invention provides a steam curing chamber for precast concrete beams and slabs in a beam yard, which solves the problems of high steam curing energy consumption and low steam curing efficiency caused by the non-adjustable width of the existing steam curing chamber.

[0006] The object of the present invention can be achieved by the following technical solutions: A steam curing chamber for precast concrete beams and slabs in a beam yard includes two side partitions, a top partition and a plurality of pulley assemblies; the top partition is rotatably connected to the two side partitions, and the top partition, the two side partitions and the ground enclose a steam curing space for the beams and slabs; a multi-track for the two side partitions to slide is arranged on the ground, and the side partitions move horizontally on the multi-track to adjust the width of the steam curing space; a plurality of the pulley assemblies are rotatably installed at the bottom of any one of the side partitions, and any one of the pulley assemblies slides on the multi-track. When the pulley assembly rotates horizontally, the top partition and the side partition rotate relative to each other, driving the two side partitions to approach or move away from each other.

[0007] Preferably, the top partition wall includes a support shaft, a rotating shaft, and a plurality of top plates. The plurality of top plates are all rotatably connected to the support shaft, and the top plates are evenly distributed on both sides of the support shaft. The top plates on both sides are rotatably connected to the side partition walls through the rotating shaft, so as to compensate for the length of the top partition wall when the side partition walls approach or move away from each other.

[0008] Preferably, the multi-track includes a horizontal track and a plurality of groups of vertical tracks arranged on both sides. The vertical tracks on the same side are connected by the horizontal track. The pulley assembly passes through the horizontal track from the vertical track and enters the other vertical track to adjust the width of the steam curing space.

[0009] Preferably, the pulley assembly includes a roller, a transmission shaft, and an abutting rod. The transmission shaft is rotatably installed on the side partition wall. The roller is coaxially connected to the transmission shaft and is used to drive the side partition wall to move between the horizontal track and the vertical track. The transmission shaft is provided with a guide groove, and the abutting rod is slidably installed in the guide groove. The guide groove changes the rotational movement of the transmission shaft into the linear movement of the abutting rod. The side partition wall is provided with a rotating groove, the rotating shaft is installed in the rotating groove, the top plate rotates in the rotating groove, and the linear movement of the abutting rod in the vertical direction changes the space of the rotating groove to limit the rotational movement of the top plate.

[0010] Preferably, driving components are connected to both side partition walls, and the driving components are used to drive the two side partition walls to move. The driving components include driving circular teeth, driving straight teeth, and a driving motor. The driving circular teeth are arranged at the top on one side of the horizontal track, the driving straight teeth are fixedly arranged on one side of the side partition wall, the driving circular teeth and the driving straight teeth are meshed, the driving motor is coaxially connected to the driving circular teeth, and the driving components are used to provide a rotational force for the driving circular teeth.

[0011] Preferably, a locking component is further included, and the locking component is used to adjust the horizontal and vertical movements of the roller. The locking component includes a locking rod, locking teeth, and a transmission thread part. The transmission thread part is arranged on the transmission shaft, the locking teeth are threadedly connected to the transmission thread part, the locking rod is fixedly connected to the locking teeth, and the locking rod moves linearly and is clamped in the vertical direction to maintain the horizontal or vertical state of the roller. The locking teeth convert the linear movement of the transmission shaft into the rotational movement of the transmission shaft to change the horizontal or vertical state of the roller. A hook part is arranged on the upper part of the locking rod, and the hook part is clamped in the fixing parts arranged on the side partition wall. The number of the fixing parts is at least two, and the heights of the two fixing parts are different.

[0012] Preferably, the side partition wall comprises a plurality of square tubes and hinge rods, and adjacent square tubes are connected by hinge rods for adjusting the vertical length of the steam curing space; the bottoms of the plurality of square tubes are all connected to the pulley assembly, the square tube at the rear end moves in the transverse direction, and the locking assembly is installed on the pulley assembly at the rear end.

[0013] Preferably, the transmission shaft rotates at least 90°.

[0014] Preferably, the maximum moving distance of the abutting rod is not less than the distance between the bottom surface of the rotating groove and the horizontal section of the transmission shaft.

[0015] Preferably, a sealing film is further included, and the sealing film is sleeved outside the side partition wall and the top partition wall for keeping the steam curing space sealed.

[0016] The beneficial effects of the present invention are as follows: In this application, by adjusting the width of the steam curing chamber to match the actual size of the beam slab, the problems of heat dissipation and uneven steam curing caused by an overly large steam curing chamber are avoided. The width adjustment makes it easier to control and optimize parameters such as temperature and humidity in the steam curing chamber, thereby improving the steam curing quality and efficiency of the beam slab. The width adjustment mechanism is simple and efficient, and the operator can achieve rapid width adjustment by simply controlling the movement of the pulley assembly, greatly simplifying the operation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] For the convenience of those skilled in the art to understand, the present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 It is a front view structural schematic diagram of the steam curing chamber provided by the present invention in an embodiment; Figure 2 It is a structural schematic diagram of the steam curing chamber for adjusting the width provided by the present invention in an embodiment; Figure 3 It is a connection structural schematic diagram of the pulley assembly provided by the present invention in an embodiment; Figure 4 It is a structural schematic diagram of the maximum moving distance of the abutting rod provided by the present invention in an embodiment; Figure 5 It is a structural schematic diagram of the downward sliding of the abutting rod provided by the present invention in an embodiment; Figure 6 It is a multi-track top view structural schematic diagram provided by the present invention in an embodiment; Figure 7 It is a side view structural schematic diagram of the steam curing chamber provided by the present invention in an embodiment; Figure 8 It is a connection structural schematic diagram of the driving assembly provided by the present invention in an embodiment; Legend: 1. Side partition wall; 11. Square tube; 12. Hinge rod; 13. Rotation groove; 2. Top partition wall; 21. Support shaft; 22. Rotation shaft; 23. Top plate; 3. Pulley assembly; 31. Roller; 32. Transmission shaft; 321. Guide groove; 33. Contact rod; 4. Multi-track; 41. Horizontal track; 42. Vertical track; 5. Drive assembly; 51. Drive circular gear; 52. Drive straight gear; 53. Drive motor; 6. Locking assembly; 61. Locking rod; 62. Locking tooth; 63. Transmission thread part; 7. Sealing film. Detailed implementation manner

[0019] To further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following will, in conjunction with the attached drawings and preferred embodiments, elaborate in detail on the specific implementation manner, structure, features and their effects of the present invention.

[0020] As Figures 1-8 shown, a steam curing chamber for precast concrete beams and slabs in a beam yard includes two side partition walls 1, a top partition wall 2 and a number of pulley assemblies 3; the top partition wall 2 is rotatably connected to the two side partition walls 1, and the top partition wall 2, the two side partition walls 1 and the ground enclose a steam curing space for the beams and slabs; the ground is provided with a multi-track 4 for the two side partition walls 1 to slide, and the side partition walls 1 move horizontally on the multi-track 4 to adjust the width of the steam curing space; a number of pulley assemblies 3 are rotatably installed at the bottom of any side partition wall 1, and any pulley assembly 3 slides on the multi-track 4. When the pulley assembly 3 rotates horizontally, the top partition wall 2 and the side partition wall 1 rotate relative to each other, driving the two side partition walls 1 to approach or move away from each other; When it is necessary to adjust the width of the steam curing chamber, the operator drives the pulley assemblies 3 at the bottom of the two side partition walls 1 to move horizontally on the multi-track 4, causing the two side partition walls 1 to approach each other. As the pulley assemblies 3 rotate vertically and the side partition walls 1 continue to move, the top partition wall 2 is gradually lifted. Because during the rotation of the pulley assemblies 3, the change in their geometric shape and position causes the top partition wall 2 to receive an upward force and thus be lifted; since the top partition wall 2 is lifted while the side partition walls 1 move inward at the same time, the width of the steam curing space (i.e., the distance between the side partition walls 1) decreases accordingly. This width adjustment is dynamic and continuous and can be precisely adjusted according to the size requirements of the beams and slabs; In summary, by adjusting the width of the steam curing chamber to match the actual size of the beams and slabs, the problems of heat dissipation and uneven steam curing caused by an overly large steam curing chamber are avoided. The width adjustment makes it easier to control and optimize parameters such as temperature and humidity in the steam curing chamber, thereby improving the steam curing quality and efficiency of the beams and slabs. The width adjustment mechanism is simple and efficient, and the operator can achieve rapid adjustment of the width by simply controlling the movement of the pulley assemblies 3, greatly simplifying the operation process.

[0021] In one embodiment, the top partition wall 2 includes a support shaft 21, a rotating shaft 22, and a plurality of top plates 23. The plurality of top plates 23 are all rotatably connected to the support shaft 21, and the top plates 23 are evenly distributed on both sides of the support shaft 21. The top plates 23 on both sides are rotatably connected to the side partition wall 1 through the rotating shaft 22, and are used to compensate for the length of the top partition wall 2 when the side partition walls 1 approach or move away from each other. When the side partition walls 1 move laterally on the multi-track 4 to adjust the width of the steam curing space, the side partition walls 1 and the top partition wall 2 rotate relative to each other at the rotating shaft 22, and the top plates 23 start to rotate around the support shaft 21. Since the top plates 23 are connected to the side partition walls 1 through the rotating shaft 22, the movement of the side partition walls 1 will drive the top plates 23 to rotate with the rotating shaft 22 as the rotation point; through the lifting mechanism of the top partition wall 2, it is ensured that the steam curing space always remains intact and closed during the width adjustment process, avoiding the problem of steam curing space leakage caused by insufficient length of the top partition wall 2; the steam curing space can be quickly adjusted through simple width adjustment, enhancing the flexibility and versatility of the equipment; since the top partition wall 2 can automatically lift and lower with the movement of the side partition walls 1, the mechanical wear and fatigue damage caused to the top partition wall 2 due to width adjustment are reduced, thereby extending the service life of the equipment.

[0022] In one embodiment, the multi-track 4 includes a horizontal track 41 and a plurality of groups of vertical tracks 42 provided on both sides. The vertical tracks 42 on the same side are connected by the horizontal track 41, and the pulley assembly 3 passes through the horizontal track 41 from the vertical track 42 and enters another vertical track 42 to adjust the width of the steam curing space. When it is necessary to adjust the width of the steam curing chamber, the pulley assembly 3 passes through the horizontal track 41 from the vertical track 42 and enters the vertical track 42 on the other side, so that the side partition walls 1 can move laterally, thereby changing the width of the steam curing space. By controlling the moving distance of the pulley assembly 3, the distance between the two side partition walls 1, that is, the width of the steam curing space, can be accurately adjusted. The mutual connection of the vertical track 42 and the horizontal track 41 forms a stable framework, providing reliable support for the movement of the side partition walls 1 and enhancing the stability of the entire steam curing chamber structure.

[0023] In one embodiment, the pulley assembly 3 includes a roller 31, a transmission shaft 32, and an abutting rod 33; the transmission shaft 32 is rotatably installed on the side partition wall 1, the roller 31 and the transmission shaft 32 are coaxially connected, and are used to drive the side partition wall 1 to move between the horizontal track 41 and the vertical track 42; the transmission shaft 32 is provided with a guide groove 321, the abutting rod 33 is slidably installed in the guide groove 321, and the guide groove 321 changes the rotational movement of the transmission shaft 32 into the linear movement of the abutting rod 33; the side partition wall 1 is provided with a rotating groove 13, the rotating shaft 22 is installed in the rotating groove 13, the top plate 23 rotates in the rotating groove 13, and the linear movement of the abutting rod 33 in the vertical direction changes the space of the rotating groove 13 to limit the rotational movement of the top plate 23. A rotating groove 13 is provided on the side partition wall 1. The rotating shaft 22 is installed in the rotating groove 13, and the top plate 23 rotates in the rotating groove 13 so that the top plate 23 can rotate around the rotating shaft 22. When the abutting rod 33 moves linearly in the vertical direction, it will change the space of the rotating groove 13. Specifically, the movement of the abutting rod 33 will limit the rotation range of the top plate 23 in the rotating groove 13, thereby controlling the rotation and lifting height of the top partition wall 2. By controlling the movement distance of the abutting rod 33, the rotational movement of the top plate 23 can be restricted, and further, the width between the side partition walls 1 can be adjusted. Further, the guiding groove 321 is in a curved shape, and symmetric sliding parts are provided at the bottom of the abutting rod 33. Through the cooperation of the sliding parts and the guiding groove 321, when the guiding groove 321 rotates, due to the influence of the side partition wall 1 on the upper part of the abutting rod 33, the abutting rod 33 moves linearly along the shape of the guiding groove 321. That is, the application of the guiding groove 321 and the abutting rod 33 cleverly converts the rotational movement of the transmission shaft 32 into the linear movement of the abutting rod 33, thereby restricting the rotational movement of the top plate 23. This not only improves the stability and reliability of the equipment, but also enhances the flexibility and versatility of the equipment. The precise width adjustment enables the steam curing space to better match the size of the beam and slab, avoiding problems such as heat dissipation and uneven steam curing caused by an overly large steam curing space. This not only improves the steam curing quality of the beam and slab, but also shortens the steam curing time, thereby improving the steam curing efficiency. Since the width adjustment process is more stable and precise, mechanical wear and fatigue damage to the equipment caused by improper adjustment are reduced.

[0024] In an embodiment, driving components 5 are connected to both side partition walls 1. The driving components 5 are used to drive the two side partition walls 1 to move. The driving components 5 include driving circular gears 51, driving straight gears 52, and driving motors 53. The driving circular gears 51 are arranged at the top of one side of the horizontal track 41, the driving straight gears 52 are fixedly arranged on one side of the square tube 11, the driving circular gears 51 and the driving straight gears 52 are meshed, and the driving motors 53 and the driving circular gears 51 are coaxially connected. The driving components 5 are used to provide a rotational force for the driving circular gears 51. When it is necessary to adjust the width of the side partition wall 1, the driving motor 53 is started to generate a rotational force. The rotational force of the driving motor 53 is transmitted through coaxial connection to the driving circular gear 51, causing the driving circular gear 51 to start rotating. Since the driving circular gear 51 meshes with the driving straight gear 52, the rotation of the driving circular gear 51 will drive the driving straight gear 52 to move horizontally on the transverse track 41. The driving straight gear 52 is fixedly arranged on one side of the square tube 11. Therefore, the movement of the driving straight gear 52 will drive the entire square tube 11 to move horizontally on the transverse track 41, thereby realizing the adjustment of the width of the side partition wall 1. Therefore, the design of the driving assembly 5 makes the adjustment process of the width of the side partition wall 1 faster and more efficient. Compared with the traditional manual adjustment method, the driving assembly 5 can complete the width adjustment in a short time, greatly improving the adjustment efficiency. Due to the meshing effect of the driving circular gear 51 and the driving straight gear 52, the adjustment process of the width of the side partition wall 1 is more accurate. By controlling the magnitude and direction of the rotational force of the driving motor 53, fine adjustment of the width of the side partition wall 1 can be achieved to meet the steam curing requirements of various sized beam plates. The application of the driving assembly 5 makes the width adjustment process of the steam curing chamber automated. This not only reduces the labor intensity of the operators but also improves the overall automation level of the equipment, making the steam curing process more intelligent and convenient.

[0025] In one embodiment, a locking assembly 6 is further included. The locking assembly 6 is used to adjust the horizontal and vertical movement of the roller 31. The locking assembly 6 includes a locking rod 61, a locking tooth 62, and a transmission thread portion 63. The transmission thread portion 63 is arranged on the transmission shaft 32. The locking tooth 62 is threadedly connected to the transmission thread portion 63. The locking rod 61 is fixedly connected to the locking tooth 62. The locking rod 61 moves linearly in the vertical direction and is clamped to maintain the horizontal or vertical state of the roller 31. The locking tooth 62 converts the linear movement of the transmission shaft 32 into a rotational movement of the transmission shaft 32 to change the horizontal or vertical state of the roller 31. A hook portion is provided on the upper part of the locking rod 61. The hook portion is clamped to at least two fixing portions with different heights provided on the side partition wall 1, so that the locking rod 61 can be fixed at different height positions, thereby realizing the locking of different states of the roller 31. When it is necessary to change the state of the roller 31, the operator moves the locking rod 61 to make it move linearly in the vertical direction. The movement of the locking rod 61 will, through the clamping relationship between the hook portion and the fixing portion on the side partition wall 1, fix the locking rod 61 at different height positions. The locking tooth 62 rotates: The movement of the locking rod 61 will drive the locking tooth 62 to rotate. Since the locking tooth 62 is threadedly connected to the transmission thread portion 63, the rotation of the locking tooth 62 will be converted into a linear movement of the transmission thread portion 63. The transmission shaft 32 rotates: The linear motion of the transmission thread portion 63 drives the transmission shaft 32 to rotate. Since the transmission shaft 32 is coaxially connected to the roller 31, the rotation of the transmission shaft 32 drives the roller 31 to rotate. The state of the roller 31 changes: By controlling the linear motion distance and direction of the locking rod 61, the rotation angle and direction of the roller 31 are controlled, thereby changing the horizontal or vertical state of the roller 31.

[0026] In one embodiment, the side partition wall 1 includes a plurality of square tubes 11, and adjacent square tubes 11 are connected by hinge rods 12 for adjusting the vertical length of the steam curing space; the bottoms of the plurality of square tubes 11 are all connected to the pulley assembly 3, and the square tube 11 at the rear end only moves in the horizontal direction, and the locking assembly 6 is installed on the pulley assembly 3 at the rear end; When it is necessary to adjust the vertical length of the steam curing space, by controlling the movement of the pulley assembly 3 in the vertical direction, a plurality of square tubes 11 achieve power transmission under the action of the hinge rod 12, and then the distance between two adjacent square tubes 11 increases, and thus the overall vertical length can change. Since the rear-end square tube 11 is fixed by the locking assembly 6, the movement of the front-end square tube 11 drives the entire side partition wall 1 to deform in the vertical direction. As the square tube 11 moves, the vertical length of the steam curing space also changes accordingly, enabling the steam curing chamber to adapt to the steam curing requirements of beam plates with different heights, and improving the flexibility and versatility of the equipment; Since the locking assembly 6 is only installed on the rear-end square rod, the movement directions of the pulley assemblies 3 of the remaining square tubes 11 are also affected by the direction of the pulley assembly 3 connected to the locking assembly 6. That is, if the pulley assembly 3 connected to the locking assembly 6 is in the vertical track 42, then a plurality of square tubes 11 can only move horizontally in the vertical track 42; conversely, when the rotation direction of the pulley assembly 3 enters the horizontal track 41, the remaining square tubes 11 move into the horizontal track 41 under the action of their respective pulley assemblies 3 to adjust the width of the steam curing space.

[0027] In one embodiment, the transmission shaft 32 rotates at least 90°. To achieve a smooth transition of the roller 31 from the vertical track 42 to the horizontal track 41, the roller 31 needs to complete a 90° rotation from the vertical direction to the horizontal direction. This rotation process must be precisely controlled to ensure that the roller 31 can accurately enter the horizontal track 41 and remain stable. As the driving component for the rotation of the roller 31, the rotation angle of the transmission shaft 32 directly determines the rotation angle of the roller 31. Therefore, to achieve a 90° rotation of the roller 31, the transmission shaft 32 must also rotate at least 90°. When the transmission shaft 32 rotates 90°, the roller 31 also rotates 90°. This rotation process changes the direction of the roller 31 from the vertical direction to the horizontal direction, thus completing the transition from the vertical track 42 to the horizontal track 41. During the rotation of the transmission shaft 32, the roller 31 gradually disengages from the vertical track 42 and enters the horizontal track 41. Since the rotation of the transmission shaft 32 is precisely controlled, it can be ensured that the roller 31 can enter the horizontal track 41 smoothly and accurately. It can be seen that the design of the transmission shaft 32 rotating at least 90° enables the roller 31 to smoothly and accurately enter the horizontal track 41 from the vertical track 42. This design avoids problems such as jamming or deviation of the roller 31 caused by insufficient or excessive rotation angles, improving the stability and reliability of the track transition.

[0028] In one embodiment, the maximum moving distance of the abutting rod 33 is not less than the distance between the bottom surface of the rotating groove 13 and the horizontal section plane of the transmission shaft 32. Therefore, the abutting rod 33 can move within a sufficiently large range to ensure that its front end can abut against the ejector rod. When the front end of the abutting rod 33 abuts against the ejector rod, a reaction force is generated, which prevents the rotation of the ejector rod. Since the moving distance of the abutting rod 33 is large enough, it can provide an effective abutting effect at any position of the rotation of the ejector rod. Through the abutting action of the abutting rod 33, the ejector rod is stably fixed on the transmission shaft 32 and will not rotate. Through the abutting action of the abutting rod 33, the rotation of the ejector rod is effectively prevented, improving the stability of the transmission system. Since the abutting rod 33 can effectively prevent the rotation of the ejector rod, equipment damage or safety accidents caused by the rotation of the ejector rod are avoided, improving the safety of the equipment and ensuring the life and property safety of the operator.

[0029] In one embodiment, it further includes a sealing film 7. The sealing film 7 is sleeved on the outer sides of the side partition wall 1 and the top partition wall 2 for keeping the steam curing space sealed. The sealing film 7 is tightly sleeved on the outer surfaces of the side partition wall 1 and the top partition wall 2, forming a continuous and seamless covering layer, ensuring good adhesion between the sealing film 7 and the side partition wall 1 and the top partition wall 2 and avoiding steam leakage caused by gaps. When steam is generated inside the steam curing space, the sealing film 7 serves as a physical barrier to prevent the steam from escaping from the outer sides of the side partition wall 1 and the top partition wall 2. At the same time, the sealing film 7 can also prevent external air from entering the steam curing space, thus maintaining the pressure and temperature stability inside the steam curing space.

[0030] As described above, it is only the preferred embodiment of the present invention, and it does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the disclosed technical content within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A steam curing chamber for precast concrete beams and slabs in a beam yard, characterized in that, It includes two side partition walls, a top partition wall and several pulley assemblies; the top partition wall is rotatably connected to the two side partition walls, and the top partition wall, the two side partition walls and the ground enclose a steam curing space for the beam slab; the ground is provided with multiple tracks for the two side partition walls to slide, and the side partition walls move horizontally on the multiple tracks to adjust the width of the steam curing space; several of the pulley assemblies are rotatably installed at the bottom of any one of the side partition walls, and any one of the pulley assemblies slides on the multiple tracks. When the pulley assembly rotates horizontally, the top partition wall and the side partition wall rotate relative to each other, driving the two side partition walls to approach or move away from each other; it further includes a locking assembly, and the locking assembly is used to adjust the horizontal and vertical movement of the rollers; the locking assembly includes a locking rod, a locking tooth and a transmission thread part; the transmission thread part is arranged on the transmission shaft, the locking tooth is threadedly connected to the transmission thread part, the locking rod is fixedly connected to the locking tooth, and the locking rod moves linearly in the vertical direction and is clamped to maintain the horizontal or vertical state of the roller; the locking tooth converts the linear movement of the transmission shaft into the rotational movement of the transmission shaft to change the horizontal or vertical state of the roller.

2. The steam curing chamber for precast concrete beams and slabs in a beam yard according to claim 1, characterized in that, The top partition wall includes a support shaft, a rotating shaft and several top plates. Several of the top plates are all rotatably connected to the support shaft, and the top plates are evenly distributed on both sides of the support shaft. The top plates on both sides are rotatably connected to the side partition walls through the rotating shaft to compensate for the length of the top partition wall when the side partition walls approach or move away from each other.

3. The steam curing chamber for precast concrete beams and slabs in a beam yard according to claim 2, characterized in that, The multiple tracks include a horizontal track and several groups of vertical tracks arranged on both sides. The vertical tracks on the same side are connected by the horizontal track, and the pulley assembly passes through the horizontal track from the vertical track and enters the other vertical track to adjust the width of the steam curing space.

4. A steam curing chamber for precast concrete beams and slabs in a beam yard according to claim 3, characterized in that, The pulley assembly includes a roller, a transmission shaft and an abutting rod; the transmission shaft is rotatably installed on the side partition wall, the roller is coaxially connected to the transmission shaft and is used to drive the side partition wall to move between the horizontal track and the vertical track; the transmission shaft is provided with a guide groove, the abutting rod is slidably installed in the guide groove, and the guide groove changes the rotational movement of the transmission shaft into the linear movement of the abutting rod; the side partition wall is provided with a rotating groove, the rotating shaft is installed in the rotating groove, the top plate rotates in the rotating groove, and the linear movement of the abutting rod in the vertical direction changes the space of the rotating groove to limit the rotational movement of the top plate.

5. A steam curing chamber for precast concrete beams and slabs in a beam yard according to claim 3, characterized in that, Driving assemblies are connected to both side partition walls on both sides, and the driving assemblies are used to drive the two side partition walls to move; the driving assemblies include driving circular teeth, driving straight teeth and driving motors. The driving circular teeth are arranged on the top of one side of the horizontal track, the driving straight teeth are fixedly arranged on one side of the side partition wall, the driving circular teeth are meshed with the driving straight teeth, the driving motors are coaxially connected to the driving circular teeth, and the driving assemblies are used to provide rotational force for the driving circular teeth.

6. A steam curing chamber for precast concrete beams and slabs in a beam yard according to claim 4, characterized in that, The upper part of the locking rod is provided with a hook part, and the hook part is clamped on the fixing part provided on the side partition wall. The number of the fixing parts is at least two, and the heights of the two fixing parts are different.

7. A steam curing chamber for precast concrete beams and slabs in a beam yard according to claim 6, characterized in that, The side partition wall includes a plurality of square tubes and hinge rods, and adjacent square tubes are connected by the hinge rods for adjusting the vertical length of the steam curing space; the bottoms of the plurality of square tubes are all connected to the pulley assembly, and the square tube at the rear end moves in the transverse direction, and the locking assembly is installed on the pulley assembly at the rear end.

8. A steam curing chamber for precast concrete beams and slabs in a beam yard according to claim 4, characterized in that, The transmission shaft rotates at least 90°.

9. A steam curing chamber for precast concrete beams and slabs in a beam yard according to claim 8, characterized in that, The maximum moving distance of the abutting rod is not less than the distance between the bottom surface of the rotating groove and the horizontal section of the transmission shaft.

10. A steam curing chamber for precast concrete beams and slabs in a beam yard according to claim 1, characterized in that, It further includes a sealing film, and the sealing film is sleeved on the outer sides of the side partition wall and the top partition wall for keeping the steam curing space sealed.

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