A steam curing box for steam curing concrete PC components
By setting up a support roller and a bevel gear to rotate in the steam curing chamber and arranging the spray pipes in a straight line, the problem of uneven heating at the bottom of the precast components was solved, achieving uniform heating and humidification of the components, thus improving quality and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINAN YINGZHOU LIANYUN BUILDING MATERIALS TECH CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-07-14
AI Technical Summary
When using existing steam curing chambers to steam-cur precast concrete components, the contact area between the bottom of the component and the high-temperature steam is small and the contact time is short, resulting in uneven heating and moisturization at the bottom, which affects the quality and strength of the component.
The support rollers in the support assembly, through the cooperation of a gear and a bevel gear, enable the support rollers to rotate regularly during the steam curing process. Combined with the linear arrangement design of the spray pipes and nozzles, this ensures that the high-temperature steam acts on the components from all directions. At the same time, the pressure relief mechanism controls the sealing force of the sealing plate by rotating the adjusting screw to avoid excessive pressure.
It achieves uniform heating and humidification of all parts of the bottom of the precast components, improves the overall strength and quality of the components, avoids strength differences and micro-cracks caused by uneven heating, and ensures the safety of the steam curing chamber.
Smart Images
Figure CN224489513U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of steam curing technology for concrete PC components, and more specifically, it relates to a steam curing box for steam curing concrete PC components. Background Technology
[0002] With the rapid development of industrialized construction, steam-cured concrete (PC) components have been widely used in various construction projects due to their advantages such as high production efficiency, stable quality, energy saving and environmental protection. As a key piece of equipment for producing steam-cured concrete (PC) components, the performance and quality of the steam curing box directly affect the curing effect and final quality of the components.
[0003] In existing steam curing chambers, the placement of precast concrete components is fixed, meaning the components are placed stably on specific supports and their position remains unchanged throughout the curing process. Since the bottom of the precast component is in direct contact with the supports, the supports, to some extent, obstruct sufficient contact between the high-temperature steam and the bottom of the component. Because the bottom of the component is blocked by the supports, steam cannot directly reach that area, resulting in a significant reduction in the contact area and a relatively short contact time. This leads to uneven heating and moisturizing of the bottom of the precast component. Utility Model Content
[0004] To address the aforementioned technical problems, this utility model provides a steam curing box for steam-cured concrete PC components, thereby resolving the issue of uneven heating and moisturizing at the bottom of precast components as mentioned in the background art.
[0005] This utility model discloses a steam curing box for steam-cured concrete (PC) components, achieved through the following specific technical means:
[0006] A steam curing box for steam-cured concrete (PC) components includes a box body; a box door is provided on one side of the box body, and a support assembly is fixedly installed inside the box body; a pressure relief mechanism is fixedly installed on the top of the box body, and an auxiliary structure is fixedly installed on the outside of the box body; a spray pipe is fixedly installed inside the box body, and a nozzle is fixedly installed inside one side of the spray pipe; a connecting pipe is fixedly installed on the outside of the box body, and the connecting pipe is fixedly connected to the spray pipe, and an air inlet pipe is fixedly installed at the top of the connecting pipe.
[0007] The support assembly includes: a support frame, a support roller, a drive sprocket, and a bevel gear; the support frame is fixedly installed inside the housing; the support roller is rotatably installed inside the support frame; the drive sprocket is fixedly installed at one end of the support roller; and the bevel gear is fixedly installed at the other end of the support roller.
[0008] Furthermore, the spray pipes and nozzles are arranged in a straight line, and the spray pipes and nozzles are respectively located at the top and bottom of the support roller.
[0009] Furthermore, the support rollers and drive sprockets are arranged in a straight line, and two sets of bevel gears are arranged symmetrically.
[0010] Furthermore, the support assembly also includes: a fixed base, a drive motor, and a missing gear; the fixed base is fixedly disposed on the outside of the housing; the drive motor is fixedly disposed on the outside of the fixed base; the missing gear is fixedly disposed on the motor shaft of the drive motor, and the missing tooth angle of the missing gear is set to 180°, and the missing gear meshes with both sets of bevel gears.
[0011] Furthermore, the auxiliary structure includes: an auxiliary seat, an auxiliary lead screw, a tensioning seat, a tensioning sprocket, a chain, and a guide plate; the auxiliary seat is fixedly disposed on the outside of the housing; the auxiliary lead screw is threadedly connected inside the auxiliary seat, and a handwheel is fixedly disposed at the bottom end of the auxiliary lead screw; the tensioning seat is rotatably disposed on the outside of the top end of the auxiliary lead screw; the tensioning sprocket is rotatably disposed on the inside of the top end of the tensioning seat; the chain is fitted between the tensioning sprocket and the drive sprocket; the guide plate is fixedly disposed at the bottom of the tensioning seat, and the guide plate is slidably disposed on the outside of the auxiliary seat through a dovetail groove.
[0012] Furthermore, the pressure relief mechanism includes: a pressure relief cylinder, a fixed vertical rod, a threaded frame, an adjusting screw, and a sliding frame; the pressure relief cylinder is fixedly installed inside the top side of the housing; the fixed vertical rod is fixedly installed at the top of the pressure relief cylinder; the threaded frame is fixedly installed at the top of the fixed vertical rod; the adjusting screw is threadedly connected inside the threaded frame, and a knob is fixedly installed at the top of the adjusting screw; the sliding frame is slidably installed outside the fixed vertical rod, and the sliding frame is rotatably installed at the bottom end of the adjusting screw.
[0013] Furthermore, the pressure relief mechanism also includes: a sealing groove, a sealing plate, and a sealing ring; the sealing groove is opened inside the top side of the pressure relief cylinder; the sealing plate is slidably disposed on the outside of the fixed vertical rod, and the bottom of the sealing plate is in contact with the top of the pressure relief cylinder; a spring is disposed between the top of the sealing plate and the bottom of the sliding frame, and the spring is located on the outside of the fixed vertical rod; the sealing ring is fixedly disposed on the bottom of the sealing plate, and the sealing ring is movably disposed inside the sealing groove.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] 1. In this utility model, by setting a missing gear and two sets of symmetrical bevel gears, the support roller can rotate regularly during the steam curing process, so that the contact area between the bottom of the precast component and the support roller is continuously changed; thereby, all parts of the bottom of the precast component can be evenly heated and humidified by high-temperature steam, and fully participate in the hydration reaction, thus ensuring the uniformity and stability of the overall strength of the precast component, and greatly improving the quality and performance of the precast component.
[0016] 2. In this utility model, by arranging spray pipes and nozzles in a straight line at the top and bottom of the support roller, high-temperature steam and moisture can act on the concrete PC component in all directions without dead angles; effectively avoiding problems such as component strength differences and micro-cracks caused by uneven heating and moisturizing.
[0017] 3. In this utility model, by rotating the adjusting screw, the position of the sliding frame on the fixed vertical rod can be precisely controlled, thereby adjusting the sealing force of the sealing plate; during the steam curing process, when the pressure inside the chamber is too high, the air pressure will automatically push the sealing plate open to release the pressure; this helps to avoid damage to the chamber caused by excessive pressure. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0019] Figure 2 This is a schematic diagram of the internal structure of the box body of this utility model.
[0020] Figure 3 This is a schematic diagram of the support roller of this utility model.
[0021] Figure 4 This is a schematic diagram of the missing gear of this utility model.
[0022] Figure 5 This is a schematic diagram of the auxiliary structure of this utility model.
[0023] Figure 6 This is a schematic diagram of the upper surface structure of the pressure relief cylinder of this utility model.
[0024] Figure 7 This is a schematic diagram of the lower surface structure of the sealing plate of this utility model.
[0025] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0026] 1. Housing; 101. Door; 102. Spray pipe; 103. Nozzle; 104. Connecting pipe; 105. Air inlet pipe;
[0027] 2. Support components; 201. Support frame; 202. Support roller; 203. Drive sprocket; 204. Bevel gear; 205. Fixing base; 206. Drive motor; 207. Missing gear;
[0028] 3. Auxiliary structures; 301. Auxiliary seat; 302. Auxiliary lead screw; 303. Tensioning seat; 304. Tensioning sprocket; 305. Chain; 306. Guide plate;
[0029] 4. Pressure relief mechanism; 401. Pressure relief cylinder; 402. Fixed vertical rod; 403. Threaded bracket; 404. Adjusting screw; 405. Sliding bracket; 406. Sealing groove; 407. Sealing plate; 408. Sealing ring. Detailed Implementation
[0030] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.
[0031] Example 1: As shown in the attached document Figure 1 To be continued Figure 7 As shown:
[0032] This utility model provides a steam curing box for steam curing concrete PC components, including a box body 1; a box door 101 is provided on one side of the box body 1, and a support component 2 is fixedly provided inside the box body 1; a pressure relief mechanism 4 is fixedly provided on the top of the box body 1, and an auxiliary structure 3 is fixedly provided on the outside of the box body 1; a spray pipe 102 is fixedly provided inside the box body 1, and a nozzle 103 is fixedly provided on one side of the spray pipe 102; a connecting pipe 104 is fixedly provided on the outside of the box body 1, and the connecting pipe 104 is fixedly connected to the spray pipe 102, and an air inlet pipe 105 is fixedly provided at the top of the connecting pipe 104.
[0033] In this embodiment, the support assembly 2 includes: a support frame 201, a support roller 202, a drive sprocket 203, and a bevel gear 204; the support frame 201 is fixedly disposed inside the housing 1; the support roller 202 is rotatably disposed inside the support frame 201; the drive sprocket 203 is fixedly disposed at one end of the support roller 202; the bevel gear 204 is fixedly disposed at the other end of the support roller 202; the spray pipe 102 and the nozzle 103 are arranged in a straight line, and the spray pipe 102 and the nozzle 103 are respectively disposed at the top and bottom of the support roller 202; the support roller 202 and the drive sprocket 203 are arranged in a straight line, and two sets of bevel gears 204 are symmetrically arranged; the support assembly 2 also includes: a fixing seat 205. The drive motor 206 and the missing gear 207 are fixedly mounted on the outside of the housing 1. The drive motor 206 is fixedly mounted on the outside of the fixed base 205. The missing gear 207 is fixedly mounted on the motor shaft of the drive motor 206, and the missing tooth angle of the missing gear 207 is set to 180°. The missing gear 207 meshes with two sets of bevel gears 204. Its specific function is that by setting the missing gear 207 and the two sets of symmetrical bevel gears 204, the support roller 202 can rotate regularly during the steam curing process, so that the contact area between the bottom of the precast component and the support roller 202 is continuously changed. Thus, all parts of the bottom of the precast component can be evenly heated and humidified by high-temperature steam.
[0034] Example 2: As shown in the attached document Figure 2 With appendix Figure 5As shown: Based on Embodiment 1, the auxiliary structure 3 includes: an auxiliary seat 301, an auxiliary lead screw 302, a tensioning seat 303, a tensioning sprocket 304, a chain 305, and a guide plate 306; the auxiliary seat 301 is fixedly disposed on the outside of the housing 1; the auxiliary lead screw 302 is threadedly connected to the inside of the auxiliary seat 301, and a handwheel is fixedly disposed at the bottom end of the auxiliary lead screw 302; the tensioning seat 303 is rotatably disposed on the outside of the top end of the auxiliary lead screw 302; the tensioning sprocket 304 is rotatably disposed on the top of the tensioning seat 303. On the inner side; the chain 305 is installed between the tension sprocket 304 and the drive sprocket 203; the guide plate 306 is fixedly set at the bottom of the tension seat 303, and the guide plate 306 is slidably set on the outside of the auxiliary seat 301 through the dovetail groove; its specific function is: by setting the auxiliary screw 302, the auxiliary seat 301 and the guide plate 306, the up and down positions of the tension seat 303 and the tension sprocket 304 can be adjusted, thereby adjusting the tension of the chain 305; so that the chain 305 is adjusted to a suitable tension.
[0035] Example 3: As shown in the attached document Figure 6 With appendix Figure 7 As shown: Based on Embodiments 1 and 2, the pressure relief mechanism 4 includes: a pressure relief cylinder 401, a fixed vertical rod 402, a threaded bracket 403, an adjusting screw 404, a sliding bracket 405, a sealing groove 406, a sealing plate 407, and a sealing ring 408; the pressure relief cylinder 401 is fixedly installed inside the top side of the housing 1; the fixed vertical rod 402 is fixedly installed on the top of the pressure relief cylinder 401; the threaded bracket 403 is fixedly installed on the top of the fixed vertical rod 402; the adjusting screw 404 is threadedly connected inside the threaded bracket 403, and a knob is fixedly installed on the top of the adjusting screw 404; the sliding bracket 405 is slidably installed on the outside of the fixed vertical rod 402, and the sliding bracket 405 is rotatably installed on the bottom end of the adjusting screw 404; the sealing groove 406... The sealing plate 407 is slidably disposed on the outside of the fixed vertical rod 402, and the bottom of the sealing plate 407 is in contact with the top of the pressure relief cylinder 401. A spring is provided between the top of the sealing plate 407 and the bottom of the sliding frame 405, and the spring is located on the outside of the fixed vertical rod 402. The sealing ring 408 is fixedly disposed on the bottom of the sealing plate 407, and the sealing ring 408 is movably disposed inside the sealing groove 406. Its specific function is: by rotating the adjusting screw 404, the position of the sliding frame 405 on the fixed vertical rod 402 can be precisely controlled, thereby adjusting the sealing force of the sealing plate 407. During the steam curing process, when the pressure inside the chamber 1 is too high, the air pressure will automatically push the sealing plate 407 open to relieve pressure.
[0036] The specific usage and function of this embodiment are as follows:
[0037] In this invention, the box door 101 is opened, and the concrete PC component is placed stably on the support roller 202 of the support assembly 2. The position of the component is adjusted according to its size and shape. Then, the box door 101 is closed. The handwheel at the bottom of the auxiliary lead screw 302 is rotated. Since the auxiliary lead screw 302 is threadedly connected inside the auxiliary seat 301, rotating the handwheel will cause the auxiliary lead screw 302 to move up or down. The movement of the auxiliary lead screw 302 will drive the tensioning seat 303 to move up and down, and the tensioning sprocket 304 on the tensioning seat 303 will also move accordingly. This adjusts the tension of the chain 305; to achieve the appropriate tension, the chain 305 slides in the dovetail groove on the outside of the auxiliary seat 301 via the guide plate 306, ensuring the linearity and stability of the tensioning seat 303's movement; the steam source is turned on, allowing high-temperature steam to enter the connecting pipe 104 through the air inlet pipe 105, and then be transported to the spray pipe 102 by the connecting pipe 104; since the spray pipe 102 and the nozzle 103 are arranged in a straight line and are located at the top and bottom of the support roller 202 respectively, the steam will be evenly sprayed from the nozzle 103. The solution is sprayed onto the surface and bottom of the concrete PC component, achieving all-round heating and humidification of the component. The drive motor 206 is activated, which drives the gear 207 to rotate. The gear 207, through two sets of symmetrically arranged bevel gears 204, drives a set of support rollers 202 to rotate reciprocally. These support rollers 202, through a drive sprocket 203, chain 305, and tension sprocket 304, drive the remaining support rollers 202 to rotate synchronously. This ensures that the contact points between the bottom of the concrete PC component and the support rollers 202 continuously change, guaranteeing that all parts of the bottom of the component are heated and humidified. It can be heated and humidified evenly; when the pressure inside the chamber 1 is too high, the air pressure automatically pushes open the sealing plate 407; when the pressure inside the chamber 1 returns to normal, the spring on the outside of the fixed vertical rod 402 drives the sealing plate 407 to reset, so that the sealing plate 407 seals the top of the pressure relief cylinder 401 through the sealing ring 408 and the sealing groove 406; rotating the adjusting screw 404 drives the sliding frame 405 to move up and down, so that the initial length of the spring between the sliding frame 405 and the sealing plate 407 is adjusted, thereby adjusting the sealing force of the sealing plate 407.
Claims
1. A steam curing box for steam-cured concrete (PC) components, characterized in that, include: Box body (1); a box door (101) is provided on one side of the box body (1), and a support component (2) is fixedly provided inside the box body (1); a pressure relief mechanism (4) is fixedly provided on the top of the box body (1), and an auxiliary structure (3) is fixedly provided on the outside of the box body (1); a spray pipe (102) is fixedly provided inside the box body (1), and a nozzle (103) is fixedly provided on one side of the spray pipe (102); a connecting pipe (104) is fixedly provided on the outside of the box body (1), and the connecting pipe (104) is fixedly connected to the spray pipe (102), and an air inlet pipe (105) is fixedly provided at the top of the connecting pipe (104); The support assembly (2) includes: a support frame (201), a support roller (202), a drive sprocket (203), and a bevel gear (204); The support frame (201) is fixedly installed inside the box (1); the support roller (202) is rotatably installed inside the support frame (201); the drive sprocket (203) is fixedly installed at one end of the support roller (202); and the bevel gear (204) is fixedly installed at the other end of the support roller (202).
2. The steam curing box for steam-cured concrete PC components according to claim 1, characterized in that: The spray pipe (102) and the nozzle (103) are arranged in a straight line, and the spray pipe (102) and the nozzle (103) are respectively located at the top and bottom of the support roller (202).
3. The steam curing box for steam-cured concrete PC components according to claim 1, characterized in that: The support rollers (202) and drive sprockets (203) are arranged in a straight line, and two sets of bevel gears (204) are arranged symmetrically.
4. The steam curing box for steam-cured concrete PC components according to claim 1, characterized in that: The support assembly (2) further includes: a fixed base (205), a drive motor (206), and a missing gear (207); the fixed base (205) is fixedly installed on the outside of the housing (1); the drive motor (206) is fixedly installed on the outside of the fixed base (205); the missing gear (207) is fixedly installed on the motor shaft of the drive motor (206), and the missing tooth angle of the missing gear (207) is set to 180°, and the missing gear (207) meshes with both sets of bevel gears (204).
5. The steam curing box for steam-cured concrete PC components according to claim 1, characterized in that: The auxiliary structure (3) includes: an auxiliary seat (301), an auxiliary lead screw (302), a tensioning seat (303), a tensioning sprocket (304), a chain (305), and a guide plate (306); the auxiliary seat (301) is fixedly installed on the outside of the housing (1); the auxiliary lead screw (302) is threadedly connected to the inside of the auxiliary seat (301), and a handwheel is fixedly installed at the bottom of the auxiliary lead screw (302); the tensioning seat (303) is rotatably installed on the outside of the top of the auxiliary lead screw (302); the tensioning sprocket (304) is rotatably installed on the inside of the top of the tensioning seat (303); the chain (305) is fitted between the tensioning sprocket (304) and the drive sprocket (203); the guide plate (306) is fixedly installed at the bottom of the tensioning seat (303), and the guide plate (306) is slidably installed on the outside of the auxiliary seat (301) through a dovetail groove.
6. The steam curing box for steam-cured concrete PC components according to claim 1, characterized in that: The pressure relief mechanism (4) includes: a pressure relief cylinder (401), a fixed vertical rod (402), a threaded bracket (403), an adjusting screw (404), and a sliding bracket (405); the pressure relief cylinder (401) is fixedly installed inside the top side of the housing (1); the fixed vertical rod (402) is fixedly installed on the top of the pressure relief cylinder (401); the threaded bracket (403) is fixedly installed on the top of the fixed vertical rod (402); the adjusting screw (404) is installed inside the threaded bracket (403) by a threaded connection, and a knob is fixedly installed on the top of the adjusting screw (404); the sliding bracket (405) is slidably installed on the outside of the fixed vertical rod (402), and the sliding bracket (405) is rotatably installed on the bottom end of the adjusting screw (404).
7. A steam curing box for steam-cured concrete PC components according to claim 6, characterized in that: The pressure relief mechanism (4) further includes: a sealing groove (406), a sealing plate (407), and a sealing ring (408); the sealing groove (406) is opened inside the top side of the pressure relief cylinder (401); the sealing plate (407) is slidably disposed outside the fixed vertical rod (402), and the bottom of the sealing plate (407) is in contact with the top of the pressure relief cylinder (401); a spring is provided between the top of the sealing plate (407) and the bottom of the sliding frame (405), and the spring is located outside the fixed vertical rod (402); the sealing ring (408) is fixedly disposed at the bottom of the sealing plate (407), and the sealing ring (408) is movably disposed inside the sealing groove (406).